MD-SR50H/50W/60E/60W

SERVICE MANUAL

No. S2006MDSR50H/

Illustration: MD-SR50H/SR50W
MD-SR50H(BL) MD-SR50H(S) MD-SR50H(YR) MD-SR50W(BL) MD-SR50W(S) MD-SR60E(GL) MD-SR60W(S)
In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.
Illustration: MD-SR60E/SR60W

CONTENTS

Page SAFETY PRECAUTION FOR SERVICE MANUAL.... 2 SPECIFICATIONS...... 3 NAMES OF PARTS...... 4 OPERATION MANUAL...... 5 DISASSEMBLY...... 8 REMOVING AND REINSTALLING THE MAIN PARTS.... 9 ADJUSTMENT...... 10 NOTES ON SCHEMATIC DIAGRAM..... 23 TYPES OF TRANSISTOR AND DIODE.... 23 VOLTAGE...... 24 BLOCK DIAGRAM...... 25 SCHEMATIC DIAGRAM..... 26 WIRING SIDE OF P.W.BOARD.... 28 WAVEFORMS OF MD CIRCUIT..... 31 TROUBLESHOOTING..... 32 FUNCTION TABLE OF IC..... 35 PARTS GUIDE/EXPLODED VIEW PACKING METHOD (MD-SR50H for U.K./SR60E Only)

SHARP CORPORATION

This document has been published to be used for after sales service only. The contents are subject to change without notice.
SAFETY PRECAUTION FOR SERVICE MANUAL
Precaution to be taken when replacing and servicing the Laser Pickup. The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class I Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the laser beam. (1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens. (2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping. (3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup. (4) Under no circumstances look directly into the Pickup Lens at any time. (5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation exposure.

CAUTION

q This Portable MiniDisc Recorder is classified as a CLASS 1 LASER product. q The CLASS 1 LASER PRODUCT label is located on the bottom. q Use the Portable MiniDisc Recorder only in accordance with the instructions given in this manual and do not attempt to interfere with the interlock switch or make any other adjustment as this may result in exposure to hazardous radiation.
LASER KLASSE 1 LUOKAN 1 LASERLAITE KLASS 1 LASERAPP ARAT

(MD-SR50H/SR60E)

Laser Diode Properties q Material: GaAlAs q Wavelength: 785 nm q Pulse time: Read mode: 0.8 mW Continuous Write mode: max 10 mW 0.5S min cycle 1.5S Repetition
Laser Diode Properties q Material: GaAIAs q Wavelength: 785 nm q Pulse time: Read mode; 0.8 mW Continuous Write mode; max. 10 mW 0.5S min. cycle 1.5S Repetition
VAROITUS! LAITTEEN KYTTMINEN MUULLA KUIN TSS KYTTOHJEESSA MAINITULLA TAVALLA SAATTAA ALTISTAA KYTTJN TURVALLISUUSLUOKAN 1 YLITTVLLE NKYMTTMLLE LASERSTEILYLLE. VARNING - OM APPARATEN ANVNDS P ANNAT STT N I DENNA BRUKSANVISNING SPECIFICERAS. KAN ANVNDAREN UTSTTAS FR OSYNLIG LASERSTRLNING, SOM VERSKRIDER GRNSEN FR LASERKLASS 1.

(MD-SR50W/SR60W)

(MD-SR50H)

VARO ! VARNING!

Avattaessa ja suojalukitus ohitettaessa olet alttiina nkymttmlle lasersteilylle. l katso steeseen. Osynlig laserstralning nr denna del r ppnad och sprren r urkopplad. Betrakta ej strlen.
Precaution to be taken when replacing and servicing the laser pickup. The following precautions must be observed during servicing to protect your eyes against exposure to the laser. Warning of possible eye damage when repairing: If the AC adaptor or batteries are connected when the top houising (disc cover) of the unit is removed, and the PLAY key is pressed, the laser will light up during focus access (2-3 seconds). (Fig. 2-1) During the operation, the laser will leak from the opening between the magnetic head and the mechanical chassis (Fig. 2-2). In order to protect your eyes, you must not look at the laser during repair. Before repairing be sure to disconnect the AC adaptor and remove the batteries.

Magnet head

Magnet Head

Laser Beam

Mechanism Chassis
Top Cabinet Optical pick-up

Spindle motor

Main PWB Optical Pick-Up

Figure 2-1 2

Figure 2-2
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.

SPECIFICATIONS

General Power source: (MD-SR50H) DC 5V : AC adaptor (AC 220-230V, 50/60 Hz) DC 1.5V: Commercially available, "AA" (LR6) size, alkaline battery x 1 DC 1.2V: Optional rechargeable Nickel-Metal Hydride battery (AD-N70BT) x 1 DC 4.5V: Optional car adaptor, AD-CA20X (for cars with a 12-24V DC negative earth electrical system) DC 5V : AC adaptor (AC 110-240V, 50/60 Hz) DC 1.5V: Commercially available, "AA" size (LR6), alkaline battery x 1 DC 1.2V: Optional rechargeable Nickel-Metal Hydride battery (AD-N70BT) x 1 DC 4.5V: Separately available car adaptor, AD-CA20X (for cars with a 12-24V DC negative earth electrical system) DC 1.2V: Rechargeable Nickel-Metal Hydride battery (AD-N70BT) x 1 DC 5V : AC adaptor (AC 230-240V, 50/60 Hz) DC 1.5V: Commercially available, "AA" size (LR6), alkaline battery x 1 DC 4.5V: Separately available car adaptor, AD-CA20X (for cars with a 12-24V DC negative earth electrical system) DC 1.2V: Rechargeable Nickel-Metal Hydride battery (AD-N70BT) x 1 DC 5V : AC adaptor (AC 220V, 50 Hz) DC 1.5V: Commercially available, "AA" size (LR6), alkaline battery x 1 DC 4.5V: Separately available car adaptor, AD-CA20X (for cars with a 12-24V DC negative earth electrical system) 7W (AC adaptor) 0.15A (AC adaptor) 6W, 0.06A (AC adaptor) The operation time when using an alkaline battery may be different, depending on the type and manufacturer of the battery and on the operating temperature. Input sensitivity: Recording level MIC H MIC L LINE Reference input level 0.25 mV 2.5 mV 100 mV input impedance 10 kohms 10 kohms 20 kohms

Battery life:(MD-SR60W/SR60E)
When using a commercially available, high capacity, "AA" size (LR6), alkaline battery Continuous recording Approx. 3 hours Continuous play Approx. 7 hours When using the rechargeable batter (full charged) included with the unit Continuous recording Approx. 4.5 hours Continuous play Approx. 6.5 hours
Recording method: Sampling frequency:

Wow and flutter:

The continuous recording time is for analogue input when the volume level is set to "VOL 0" The continuous play time shows the value when the volume level is set to "VOL 15" The above values are the standard values when the unit is charged and used at an ambient temperature of 20C (68F).
Specifications for this model are subject to change without prior notice

NAMES OF PARTS

s Remote control unit
1. Monaural Long-Play Mode Indicator 2. Record Indicator 3. Level Meter 4. Fast Play Indicator 5. Repeat Indicator 6. TOC Indicator 7. Battery Indicator 8. Random Indicator 9. Track Number Indicator 10. Character/Time Information Indicator 11. Synchro Recording Indicator 12. Disc Mode Indicator 13. Disc Name Indicator 14. Track Name Indicator 15. Remaining Recording Time Indicator 16. Total Track Number Indicator
17. Volume Down/Cursor Button 18. Volume Up/Cursor Button 19. Record/Track Mark Button 20. Stop/Power Off/Charge Button 21. Play/Pause Button 22. Display/Character Select Button 23. Edit/Auto Mark/Time Mark Button 24. Mode Button 25. Bass/Delete Button 26. Fast Reverse/Recording Level Down/ Name Select Button 27. Fast Forward/Recording Level Up/ Name Select Button 28. Enter/Fast Play/Synchro Button
29. Earphones/Line Output Socket 30. Optical/Line Input Socket 31. Microphone Input Socket 32. Open Lever 33. 5V DC Input Socket 34. Battery Cover 35. Hold Switch
Illustration: MD-SR60E/SR60W Only
1. Headphones Socket 2. Bass/Delete/Track Mark Button 3. Volume Down/Cursor Button 4. Volume Up/Cursor Button 5. Hold Switch 6. Play/Pause Button 7. Fast Reverse/Recording Level Down/ Name Select Button 8. Fast Forward/Recording Level Up/ Name Select Button 9. Stop/Power Off Button

POWER SOURCE

RECORDING USING THE OPTICAL DIGITAL CABLE

If the hold function is active whilst the power is turned off, the power cannot be turned on by mistake and the battery will not be accidentally drained.
When this product is subjected to strong external interference (mechanical shock, excessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is operated incorrectly, it may malfunction. If such a problem occurs, do the following: 1. Unplug the AC adaptor from the AC socket. 2. Remove the battery. 3. Leave the unit completely unpowered for approximately 30 seconds.
MINIDISC SYSTEM LIMITATIONS
Error messages BATT EMPTY q Nothing is recorded. Meaning q The battery is run down. Remedy q Charge the rechargeable battery or replace the alkaline battery (or use the AC adaptor for power). q Replace the disc with a recorded disc. q Record using the analogue cable.

ERROR MESSAGES

MiniDiscs are recorded using a different system than is used for cassette tapes or DAT recordings. Therefore, the following conditions may be encountered, depending on how the disc has been recorded or edited. These are due to system limitations, and should be considered normal.
BLANK MD Cant COPY Cant EDIT Cant READ* Cant REC Cant STAMP Cant WRITE q The disc is scratched. DEFECT q The disc is out of recording space. q Editing is impossible. q Cannot save the TOC information correctly to a MiniDisc.(A large portion of the disc has been damaged.) q Recording cannot be performed correctly due to vibration or shock in the unit. q The disc data cannot be read because the disc is damaged. q A track cannot be edited. q No copy can be made because of the SCMS copyright system.
Even if the maximum recording time of a MiniDisc has not been reached, DISC FULL or TOC FULL may be displayed.
q Change the stop position of the track and then try editing it. q Reload the disc or replace it. q Replace it with another recorded disc. q Re-record or replace it with another recordable disc. q Check the number of tracks. q Replace the disc with another recordable disc. q If the sound you hear is not right, try recording again. q Replace the disc with another recordable disc. q Replace it with another recordable disc. q To have it repaired, go to the distributor where you purchased the unit.

DISASSEMBLY

Cares before disassembling When assembling the machine after disassembling or repair, observe the following requirements so as to ensure safety and performance. 1. Remove the batteries from the machine, and take out the mini-disc. 2. When assembling after repair, be sure to restore the initial location of wires. Since the screws are small, incorrect fixing may result in malfunction. 3. When repairing, pay utmost attention to static electricity of IC.

(B1)x2 1.4x2mm

Top Cabinet (A1)x2 1.4x2mm Battery Cover

(A1)x2 1.4x2mm

Open Lever (A1)x2 1.4x2mm Bottom Cabinet (A1)x2 1.4x2mm

STEP 1 2

REMOVAL Bottom Cabinet Top Cabinet
PROCEDURE 1. Screw. (A1) x6 1. Open the Top cabinet. 2. Open the Battery Cover. 3. Screw. (B1) x4 4. Flexible PWB.. (B2) x2 1. Screw.. (C1) x4 2. Flexible PWB. (C2) x2 3.Solder joint. (C3) x2 1. Raise the rear part, and remove in the arrow direction.

FIGURE 8-1 8-1

Figu re 8-1

8-2 8-2

Main PWB

Mechanism Unit

(C3)x1
(C1)x4 1.7x2.5mm (C3)x1 (B2)x2
pull pull pull pull pull pull

(C2)x1* (C2)x1

Felt Put the fold on the connector, and apply with the felt. Sagging may result in contact with the sheet matal

Main PWB Mechanism Unit

Caution: Carefully handle the main PWB and flexible PWB. After removing the flexible PWB (1*) for the optical pickup from the connector, do not touch directly the front end of flexible PWB with your hand so as to prevent damage of optical pickup by static electricity.

Figure 8-3

Figure 8-2
REMOVING AND REINSTALLING THE MAIN PARTS
Remove the mechanism according to the disassembling methods 1 to 4. (See Page 8.)
(A2)x3 1.4x2.8mm Spindle Motor Mechanism Flexible PWB Solder joint @ (A1)x1
How to remove the spindle motor (See Fig. 9-1.)
1. Remove the solder joint (A1) x 1 of flexible PWB. 2. Remove the screws (A2) x 3 pcs., and remove the spindle motor.
How to remove the Lift motor (See Fig. 9-2.)
1. Remove the solder joints (B1) x 2 of head up/down motor lead wire. 2. Remove the screw (B2) x 1 pc., and remove the flexible PWB. 3. Remove the screw (B3) x 1 pc., and remove the head up/ down motor. Note: Take care so that the motor gear is not damaged. (If the gear is damaged, noise is caused.)

MD Mechanism

Figure 9-1
(B3)x1 1.4x5.5mm Remove the Solder joint (B1)x2 Lift Motor (B2)x1 1.4x1.5mm
How to remove the sled motor (See Fig. 9-3.)
1. Remove the stop washer (C1) x 1 pc., and remove the drive gear (C2) x 1 pc. 2. Remove the screws (C3) x 2 pcs., and remove the sled motor. 3. Remove the solder joints (C4) x 2 of flexible PWB. Note: Take care so that the motor gear is not damaged. (If the gear is damaged, noise is caused.)

Figure 9-2

Stop Washer (C1)x1 Driver Gear (C2)x1 (C3)x2 1.4x1.2mm Sled Motor Mechanism Flexible PWB Solder joint (C4)x2
How to remove the magnetic head (See Fig. 9-4.)
1. Remove the screws (D1) x4 which connects the magnetic head to the head relay flexible PWB, remove the spring washers (D2) x 2 and remove the soldering joints (D3) x 2. Note: Mount carefully so as not to damage the magnetic head. (If the gear is damaged, noise is caused.)
How to reinstall the optical pickup unit (See Fig. 9-5.)
1. Remove the screw (E1) x 1 pc. 2. Slowly raise the optical pickup.

Figure 9-3

(D1)x2 1.4x2.2mm (D2)x2 Spring joint Magnetic Head
(E1)x1 1.7x3mm Guide Shaft Optical Pickup Unit Thrust Plate Spring

(D1)x1 1.4x1.5mm

Solder joint (D1)x1 (D3)x2 1.2x1.6mm

Figure 9-Figure 9-4

ADJUSTMENT

Test disc

MD adjustment needs two types of disc, namely recording disc (low reflection disc) and playback-only disc (high reflection disc).
Type Test disc Parts No. 88GMMD-110 88GMMD-212 88GMMD-213A UDSKM0001AFZZ
High reflection disc MMD-110 (TEAC Test MD) Low reflection disc Low reflection disc Low reflection disc MMD-212 (TEAC Test MD) 74-minute disc MMD-213A (TEAC Test MD) 80-minute disc Recording minidisc
Note: Use the low reflection disc on which music has been recorded.

Entering the TEST mode

1. Setting at port (power nonconnected state)
(1) Set the port as follows. TEST1 : "Low" (TP416) TEST0 : "High" (2) Turn the Power ON. (3) Test Mode START [ T E S T _ ]
2. Setting by special button operation (in standby state)
(1) Holding down the DISP button and ENTER button, press the PLAY button. (2) Normal mode setting initialization (BASS setting, VOL setting, etc.) *Since the unit is changed to the setting for production line inspection , be sure to set it to the default setting state in the following default setting procedure before returning it to the user. (3) Indication of microcomputer version for one second [ Y A b X ] Destination EEPROM version (4) Whole LCD lighting for 2 seconds (5) Test Mode START [ T E S T _ ] *When the PLAY button is pressed during indication (3) and (4), the process proceeds to (5). Microcomputer version

Leaving the TEST mode

(1) Press the STOP button in the TEST mode stop state.

Shipping setting method

Holding down simultaneously the VOLUME-DOWN Button and PLAY Button of the set unit without disc, supply the power from the DC IN plug. After the indication "INIT" -> "BYE OK" disappears, release the power supply of DC IN.

Test Mode

1. AUTO 1 Mode Perform preliminary automatic adjustment. If the combination of mechanism and pickup PWB has been changed, be sure to start from AUTO1. Perform ATT (attenuator) automatic adjustment. Perform continuous playback (error rate display, jump test) Continuous playback from the specified address is performed. 1 line, 10 lines or 384 lines manual jump is performed. C1 error rate display (pit section), ADIP error rate display (groove section) The temperature correction is performed only when servo start is performed, but the posture correction is not performed during continuous playback. Continuous record from the specified address is performed. Change of record laser output(servo gain is also changed according to laser output). The temperature correction is performed only when servo start is performed, but the posture correction is not performed during continuous recording. Temperature is displayed. (Updating in real time) Seeing the displayed adjustment value, perform preliminary manual adjustment. (Error rate indication, jump test) Temperature is displayed. (Updating in real time) Seeing the displayed adjustment value perform manfully the preliminary adjustment. (Error rate indication, jump test) Continuous playback is performed (error rate display, jump test). 7. RESULT 1 Mode The value adjusted in AUTO1 or MANUAL1 is indicated. (Execution in servo "OFF" state"). 8. RESULT 2 Mode The value adjusted in AUTO 2 or MANUAL 2 is indicated. Adjustment value is changed manually. (error rate display, jump test). 9. DIGITAL INPUT Mode Digital input information is displayed. 10. ERROR INFORMATION Error information is displayed. Mode Error information is initialized 11. NORMAL Mode The mode is changed from the TEST mode to the normal mode without adjustment. In the normal mode the internal operation mode, memory capacity, etc. areindicated. In the normal mode both temperature correction and posture correction are perfomed. 12. EEPROM Mode Factors of digital servo are changed manually. (Each servo is turned on individually.) Cut-off frequency of BASS1, BASS2 and BASS3 is selected manually. Temperature detection terminal voltage is measured, and the reference value is set. Defaults are selected and set. Setting of EEPROM protect area is updated. (In case of protect releasing) 13. INNER Mode Determine the position where the INNER switch is turned on. (only high reflection disc). The temperature correction is performed only when servo start is performed, but the posture correction is not performed.

7. INNER Mode

when the STOP button is pressed on the INNER menu (SQ______ ), the state is changed to the TEST mode STOP state. : Address
MD-SR50H/50W/60E/60W EEPROM (IC402) writing procedure
1. Procedure to replace EEPROM and write initial value of microcomputer in EEPROM
(1) (2) (3) (4) Replace EEPROM. Refer to the latest EEPROM data list. Press the Display button, ENTER button and Play button to start the test mode. Version display [Ver. X ] EEPROM version (b ~ Z) Microcomputer ROM version (5) The whole LCD lights. (6) Test mode stop state. [ T E S T ] (7) Press the "BASS" button, and press twice the "SKIP DOWN" button. [ E E P R O M ] (8) Perform the operation to display "EEPROM SETTING MODE CHART", compare the EEPROM DATA LIST with the display, and set according to the EEPROM DATA LIST with the VOL UP or VOL DOWN key. (9) Set the temperature reference. (Refer to the Temperature Reference Setting Method.) (10) Set according to the EEPROM DATA LIST. (11) Press the Stop button. [ T E S T ] (12) Press the Stop button. (13) After data is written in EEPROM, turn off power. (14) Restore protection of EEPROM.
2. Temperature reference setting method
[1] Measurement, calculation and setting procedure (1) Set the TEST mode. Set TEST 1, 0 = '01', and turn on power (or set PLAY ON in standby state). (2) Start the EEPROM mode 'Temp' menu. Key operation in order of BASS, SKIP-DOWN x 2 times, PLAY, PLAY in the test mode STOP state. 'TM$$%%' is displayed. ($$= Temperature code, %% = Temperature reference) (3) Once press SKIP-UP, and determine the displayed microcomputer TEMP input AD value.
'TPin##' is displayed. (## = TEMP input AD value)
(4) At the ambient temperature, determine the temperature corrected value from the temperature measurement value correction table. (5) Determine the temperature reference, using the following formula.
Temperature reference = Microcomputer TEMP input AD value + Temperature corrected value
(6) Set the temperature reference value by button operation , and check whether the temperature code indication corresponds to "Temperature

Spin Setting

Tracking Setting T r a c k
: Tracking setting menu PLAY

S p i n

Sled Setting

TEMP Setting Temp

: Temp setting menu PLAY

S l e d

: Slide setting menu

T p i n

: TEMP reference : Reference : Temperature code : TEMP A/D input value : Measurement value
* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set. * When the [DISP] button operation is performed in the specific state, the menu changes to "TEMP SETTING menu". * In the specific state the setting changes in the range of "00h to FFh" when the [VOL UP/DOWN] button is pressed. * When the [MODE] button is pressed in each state, the set digit is changed.
Adjustment Setting ADJSET
PLAY : Adjustment setting menu
* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set. * When the [DISP] button operation is performed in the specific state, the menu changes to "TEMP SETTING menu". * In the specific setting display state the setting change digit changes when the [P-MODE] button is pressed. 1st digit (initial value) 2nd digit

P-MODE P-MODE

* In the specific state the setting changes in the range of "0h to Fh" when the [VOL UP/DOWN] button is pressed. * When the [MODE] button is pressed in each state, the set digit is changed.

Digital EQ Setting

Control Setting CTRL
: Control setting menu PLAY

P-MODE

Continued to the next page
Continued from the preceding page
NOTES ON SCHEMATIC DIAGRAM
Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with Fusible is a fuse type. Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression capacitance/withstand voltage is used. (CH), (TH), (RH), (UJ): Temperature compensation (ML): Mylar type The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given. Parts marked with ( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
REF. NO SW401 SW402 SW403 SW902 EJECT HOLD LID DETECTION DISC PROTECT DESCRIPTION POSITION OFFON OFFON OFFON OFFON

MAIN PWB-A

C112 0.033

C209 22P (CH)

C111 0.0033 C110 0.22

C109 C0.012

CK207 TP204

C106 0.22

ADAGC ADIPI ADIPO

RF1 R RF2 RF3 RF4 REFI and SW

34 N.C.

EFMAGC

C211 5P (CH)

EFMAGI EFM AGC

RF2-1 ADAG

R106 56K

XL201 33.868MHz

R222 1M

DIFF DIFF

CCC104 0.027
ADLPFO ADIP AGC 22KO 22KI WBO LPF HPF TCGO AOUT BOUT LOGIC EOUT

33 N.C. 28

6 REFO 7 8

RFADD TCGI AIN BIN EIN

CK105 CK108 CK107

DADATA ADDATA DFCK

LDCNT1

VDD1 VPD

R105 390K

TP133 R104

R103 TP131R102 22K 26 22K

TP132 22K

TP209 TP210 CK201 CK202 CK203 SENSE CIN CK205 DINT CK206

OPTCNT

LDCNT2

X700KO

IC101 IR3R55

C204 0.47

C212 5P(CH)

LDCNT1 TP212

IC202 IX2567A 4M D-RA
79 SBO 80 SBSY 81 SFSY 82 FOK 83 SENSE 84 COUT 85 76

TOTMON TEMON SBCK

EFMO PLCK ACRCER
TCRS 47 RADRADRAWEX 44 RARASX 43 RAARADRAD2 40

CK224 TP203 CK222

FOK CK204
R101 22K C121 270P (CH) C122 270P (CH)

I/O1 I/O2 WE RAS A9

G I I C
13 Q101 2SA17457 LASER ON/OFF

MCCK N.C.

C203 0.1
XRT SYD0 R204 SYD1 1K SYD2 SYD3 SYD4 SYD5 SYD6 SYD7 SYWR SYRD SYRS
86 DINTX 87 VDDDGND 89 RSTX 90 SYSDSYSDSYSDSYSDSYSDSYSDSYSDSYSDSYWRX 99 SYRDX
RAARAARAAVDDRAAN.C. RAA0 29

C161 1

2.5V 1.75V

R154 1.2K

IC201 LR37811 ENDEC/SERVO/ ATRAC
RACASX 39 DGND 38 RAOEX 87 RAARAA7 35

A0 A1 A2 A3 VCC

IC101: RF SIGNAL PROCESSOR

C130 0.1

AUDATA AUSCLK RFLAT TEMP LDON LDVAR OPICGA

C123 390P C124 390P

RAA1 RAA2 RAA3

VCCDRAM

EFMMON

X176KO

SLDRR SPDRF

R202 33

TP108 TP109 TP110 TP111 TP114 TP115 TP116 TP117 TP118 TP119 TP120 TP121 TP101 TP102 TP103 TP105 TP106

C165 0.033

FF+ T+ TTP122

R161 1.2K

C201 1

C207 0.1

R205 330K
VCC DGND DGND LDON LDVAR CVCC AGND RF4 RF3 RF1 MP/R VCC T+ B COM RF2 A F+ FTE F
C205 0.1 R206 270K L100 10H C100 10/6.3

TP207 +2.7V

L171 10H C172 33/6.3

C171 33/6.3

OPTICAL PICKUP UNIT

R405 10K

SYD2 SYD1 SYD0 SYWR SYRD SYRS SYD7 SYD6 SYD5 SYD4 SYD3
R406 100K R412 15K R413 1K R414 1K
FODRF FODRR TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR

SW401 EJECT

IC402 58X2402T EEPROM

TP407 TP409

5 SDA 6 SCL 7 WP

VSS 4 AAA0 1

IC351 74ACT02T NOR GATE

D802 R809 R802 Q891 R811

TP416 C609
TP208 R461 R465 TP209 R463

R806 TP457

TP461 TP460
TO MECHANISM FLEXIBLE PWB ASS'Y P30 6-C

CTP663 TPTP664

TP459 TP487 TP489 TP486 TP483 C482
CTP482 C715 L710 Q711 TPR762 R761 1

CC703 C733

TP708 R717

C760 R757 R758

EJECT SW401

TP481 TP412 C758

TP458 R455 R458 R456 RTP451 TP452 C766 D492 L491

TP456 TP454

TO KEY FLEXIBLE PWB ASS'Y P30 3-E
R703 RTP713 TPRC722 TP712 TP10 5

R718 TP202

C731 R727 R502 16

R808 R768 R810

TP702 C713

10 TP703 TP704 8

R715 R713 R716 R714 C714

C491 L3 TPD801

TP13 TP20

TP724 R767 4

D496 R492
TO LCD ASS'Y P30 5-E J801 DC IN

R501 1

5 TPTP729

2 TP728 TP727

J702 MIC IN
J703 REMOTECONTROL/ HEADPHONES
: Through-hole where the top, bottom and +B patterns are connected. : Through-hole where the top, bottom and hround patterns are connected. : Through-hole where the top and bottom patterns are connected. The numbers 1 to 18 are waveform numbers shown in page 31.
Figure 28 WIRING OF P.W.BOARD (1/3) 28

PWB-A(BOTTOM VIEW)

C846 C841 C847 F841 R850 R818 C850 R844 C845 C818 D842 4

R2 C848

1 IC842 SW403 LID DETECTION
C833 D832 C821 L821 C832 R833 C838 C835 C834 D841 D831 L841 C842 R202 C201 L200 IC203 C212 RCK222 CKD851 XL201 C211 CK20 C208 C5 CC906 C10 L601 L602 R462 IC621 C209 C608 L608 C605 R815 C652 R816 R621 R622 Q803 DIC802 C804 Q801 R813 R812 R5 CC853 C551 ICC771 L771 C711 LC511 L704 C754 C5 C500 C503 R724 C723 R723 C724 C701 C702 C725
L100 C354 R161 CICQ901 C361 C907 C910 R908 R601 C912 C911 R351 ICC353
IC821 D821 C852 C822 C851

R206 R205

1 D351 R361 C351

L851 L862 IC851 C869

C840 C862 Q461

C863 C868

CK205 CK206 CK203 CK202 R204 CK201

D862 R460

R906 C905 C24 R905 C903 C902 R903 R902 R901 C901 C914 R904

C606 D651

10 L871
6 C872 R719 R720 R712 R711 C726 R702 R726 Q721

1 C774 C510

L703 CC509

C803 IC801

IC803 4

DC IN J801

C761 C753

J701 OPTICAL/LINE IN

Figure 29 WIRING OF P.W.BOARD (2/3) 29
Magnetic Head Flexible PWB (23)

M901 Spindle Motor

Optical Pickup Unit (15)

Magnetic Head (21)

Mechanism Flexible PWB (8)

SW902 Disc Protect

PH901 Photo Interrupter
CN601 To Main PWB P28 1-E
CN101 To MAIN PWB P28 1-C

M902 Sled Motor

To MAIN PWB P28 6-E CN451
M903 Lift Motor To MAIN PWB P28 6-F CN482
Key Switch Flexible PWB Ass'y (213)

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (2/3)
Pin No. 90* 91* 100 Port Name MD1 P23 WDTOVF MD2 RES NMI STBY Vcc XTAL EXTAL Vss PF7 PF6 PF5 PF4 PF3 PF2 PF1 IRQ0 AVcc Vref AN0 AN1 AN2 AN3 AN4 AN5 AN6 DA1 AVss Vss P24 TIOCB4 P26 P27 PG0 PG1 PG2 PG3 PG4 Vcc P10 P11 Terminal Name Input/Output MD1 _PLAY WDTOVF MD2 _RESET _NMI _STBY VCC XTAL EXTAL VSS _DCEXT PCNT2 PCNT1 RCPCNT _DINT _ARQD _RPLAY _ARQK AVCC VREF PLVBAT PLCHK HKEY2 HKEY1 RKEY TEMP CHGCNT LDVAR AVSS VSS PLVOW MCMON P26 PLVGN CHGON JPNP _KHOLD LDON OPICGA VDD DCNT HDON Input Input Output Input Input Input Input Input Output Output Input/Output Input Input Input Input Input Input Input Input Input Input Output Output Output Output Output Output Output Input Input Output Output Output Output Operation mode selection input 1 Unit PLAY button operation detection input Watch dog timer (not used) Operation mode selection input 2 Microcomputer hard reset input Nonmaskable interruption (not used) Microcomputer standby input (not used) Positive power supply Crystal connection terminal Crystal connection terminal Ground potential DC-IN detection input Vcc supply control output of power IC Vref supply control output of power IC Record cir cuit power control output System LSI interruption Disk cap opens and closes detection/it is started and required Remote control PLAY key operation detection It is started by the button input, requirement A/D and D/A converter positive power supply A/D and D/A converter reference voltage Battery voltage detection input Power supply circuit abnormal detection input Unit key operation detection input 2 Unit key operation detection input 1 Remote control key operation detection Ambient temperature detection inputinput Charging current control output P.U. laser power setting output A/D and D/A converter ground potential Ground potential Battery voltage measurement Internal openation status monitor Spare Battery voltage detection gain select output Ni-MH Battery charge ON output Kana conversion/Kana input existencel nonexistence discrimination Unit key hold switch input P.U. laser ON/OFF control output P.U. detection sensitivity switching output Positive power supply Mechanism driver enable output Recording head current control output Function
IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (3/3) System LSI expansion output port (6th generation: LR37811)
Pin No. Port Name EXPORT0 EXPORT1 EXPORT2 EXPORT3 EXPORT4 EXPORT5 EXPORT6 EXPORT7 Terminal Name Input/Output LDCNT1 LDCNT2 EMPH1 OPTCNT DAPON ADPON Output Output Output Output Output Output Output Output Function Recording head raising-lowering control output 1 Recording head raising-lowering control output 2 Not used. Audio emphasis control output 1 Not used. Optical digital input circuit control D/A converter operation control output A/D converter operation control output Remarks See the separate table *3. See the separate table *3. (Open) See the separate table *2. (Open) 'H': Circuit operation ON 'H': Operation ON 'H': Operation ON

*1: List of TEST port settings
TEST1 H H L L TEST0 H L H L Details Normal mode No adjustment mode Test mode (Settings prohibited)
*2: List of EMPH port settings
EMPH1 H H L L EMPH0 H L H L Details fs=32K: 'ON' fs=48K: 'ON' OFF fs=44.1K: 'ON'
*3: List of LDCNT port settings
LDCNT1 H H L L LDCNT0 H L H L Brake Drive UP Drive DOWN Output OFF Details

PARTS GUIDE

MD-SR50H(BL) MD-SR50H(S) MD-SR50H(YR) MD-SR50W(BL) MD-SR50W(S) MD-SR60E(GJ) MD-SR60W(S)
HOW TO ORDER REPLACEMENT PARTS
To have your order filled promptly and correctly, please furnish the following information. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For U.S.A. only Contact your nearest SHARP Parts Distributor to order. For location of SHARP Parts Distributor, Please call Toll-Free; 1-800-BE-SHARP
MARK: SPARE PARTS-DELIVERY SECTION
Explanation of capacitors/resistors parts codes

Capacitors

VCC.. Ceramic type VCK. Ceramic type VCT. Semiconductor type VC MF.. Cylindrical type (without lead wire) VC MN.. Cylindrical type (without lead wire) VC TV. Square type (without lead wire) VC TQ.. Square type (without lead wire) VC CY.. Square type (without lead wire) VC CZ.. Square type (without lead wire) VC J. The 13th character represents capacity difference. ("J" 5%, "K" 10%, "M" 20%, "N" 30%, "C" 0.25 pF, "D" 0.5 pF, "Z" +80-20%.) If there are no indications for the electrolytic capacitors, error is 20%.

Resistors

VRD.. Carbon-film type VRS. Carbon-film type VRN.. Metal-film type VR MF.. Cylindrical type (without lead wire) VR MN.. Cylindrical type (without lead wire) VR TV. Square type (without lead wire) VR TQ.. Square type (without lead wire) VR CY.. Square type (without lead wire) VR CZ.. Square type (without lead wire) VR J. The 13th character represents error. ("J" 5%, "F" 1%, "D" 0.5%.) If there are no indications for other parts, the resistors are 5% carbon-film type.
Parts marked with are important for maintaining the safety of the set. Be sure to replace parts with specified ones for maintaining the safety and performance of the set. 39

NO. PARTS CODE

PRICE RANK

DESCRIPTION

PARTS CODE

INTEGRATED CIRCUITS

IC101 IC201 IC202 IC203 IC251 IC253 IC255 IC256 IC257 IC258,259 IC260 IC351 IC353 IC354 IC401 IC402 IC431 IC501 IC601 IC621 IC651 IC701 IC703 IC771 IC801 IC802 IC803 IC809 IC821 IC822 IC841 IC842 IC851 IC852 IC871 IC873 IC892 IC901 VHIIR3R55//-1 VHILR37811/-1 RH-IX2567AFZZ VHI62FP2002-1 VSFTD2017++-1 VHIRN4904//-1 VHINJM022V/-1 VSRN4911+++-1 VHIS80808LN-1 VHIHN1C01FU-1 VHIRN4904//-1 VHI74ACT02T-1 VHIFTD2005/-1 VHICPH5608/-1 RH-IX0341AWZZ VHI58X2402T-1 VHIS80820LN-1 VHIAK4550VT-1 VHILV8017W+-1 VHIRN4904//-1 VHILB1930M/-1 VHIIR3R54N/-1 VHIIR3R59N/-1 VHI62GR2522-1 VHI62RP2002-1 VHIHN1C01FU-1 VHIS80819LN-1 VHIRN4904//-1 VHICPH3403/-1 VHIIR3M14N/-1 VHI6372C281-1 VHIXC62HS02-1 VHICPH3403/-1 VHIIR3M14N/-1 VHITC7S86FU-1 VHI62GR4522-1 VHIHN1C01FU-1 VHILB1971V+-1 J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J AQ RF Signal Processor,IR3R55 BB ENDEC/SERVO/ATRAC, LR37811 BA 4M D-RAM,IX2567AF AE 2V Regulator,62FP2002 AC N-ch MOS FET,FTD2017 AD Digital Transistor,RN4904 AG OP AMP,NJM022V AD Digital Transistor,RN4911 AE Reset,S80808LN AD Transistor,HN1C01FU AD Digital Transistor,RN4904 AE NOR Gate,74ACT02T AG N-ch MOS FET,FTD2005 AH N-ch MOS FET,CPH5608 System Microcomputer, IX0341AW AF EEPROM,58X2402T AD Reset,S80820LN AV AD/DA Converter,AK4550VT AT 4-CH PWM Driver,LV8017W AD Digital Transistor,RN4904 AH Motor Driver,LB1930M AQ Audio Amp.,IR3R54N AN Audio Amp.,IR3R59N AG 2.5V Regulator,62GR2522 AF 2.0V Regulator,62RP2002 AD Power Transistor,HN1C01FU AE Reset IC,S-80819LN AD Digital Transistor,RN4904 AE N-ch MOS FET,CPH3403 AK DC/DC Converter,IR3M14N AH 2.8V UP Converter,6372C281 AE 2.35V Regulator,XC62HS02 AE N-ch MOS FET,CPH3403 AK DC/DC Converter,IR3M14N AE Exclusive or Gate, TC7S86FU AG 4.5V Regulator,62GR4522 AD Power Transistor,HN1C01FU AR Spindle Motor Driver,LB1971V

PACKING METHOD (MD-SR50H FOR U.K./SR60E ONLY)
Setting position of switches and knobs UNIT Remote Control 10 RPHOH0005AWZZ RPHOH0001AWZZ RRMCW0002AWZZ UBAGC0003AWZZ TINSE0295AWZZ TINSE0296AWZZ SPAKZ0599AWZZ RADPA8046AWZZ QCNWG0382AFZZ SPAKA0237AWZZ TINSE0289AWZZ HOLD HOLD OFF CANCEL 20 TINSE0290AWZZ SPAKZ0490AWZZ UBAGC0006AWSA SPAKC0945AWZZ SPAKC0970AWZZ SPAKC0971AWZZ TLABE0354AWZZ TLABE0355AWZZ TLABE0356AWZZ TCADS0003AWZZ QCNWG0422AFZZ SSAKH0037AWZZ SPAKZ0624AWZZ Operation Manual [SR50H for U.K.] Operation Manual Spacer Carrying Case Packing Case [SR60E] Packing Case [SR50H-S for U.K.] Packing Case [SR50H-BL for U.K.] Label, Bar Code [SR60E] Label, Bar Code [SR50H-S] Label, Bar Code [SR50H-BL] Service Card Conneting Cord, Optical Type [SR60E Only] Bag, SET Pad, Protection
Earphones [SR60E Only] Headphones [SR50H for U.K.] Remote Control [SR60E Only] Battery Case [SR60E] Quick Guide [SR60E] Quick Guide [SR50H for U.K.] Pad, AC Adapter AC Adapter Connecting Cord, RCA Type Packing Add. Operation Manual [SR60E]
10 3(MD-SR60E Only) 18 (MD-SR60E Only) BATTERY 4 8

19 1(MD-SR60E Only) 12 6

COPYRIGHT
2000 BY SHARP CORPORATION

ALL RIGHTS RESERVED.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
SHARP CORPORATION Communication Systems Group Quality & Reliability Control Center Higashihiroshima, Hiroshima 739-0192, Japan Printed in Japan
A0002-4543NSHAM SG SK SCA SCNZ EX

PORTABLE MINIDISC RECORDER

OPERATION MANUAL

MD-SR50H
Thank you for purchasing this SHARP product. For the best performance, read this manual carefully. It will guide you in operating your SHARP product.

Important Introduction

Contents
Special Notes... 2-3 Precautions... 4 Names of Controls and Indicators.. 5-6 Accessories... 7 Optional Accessories.. 7

Useful Features

Advanced Recording... 15-19 Recording from a Microphone. 20-22 Advanced playback.. 23-24 Checking Displays.. 25-26 Battery Power... 27-28 Hold Function... 29 Listening to a MiniDisc through a stereo system or a car stereo.. 30

Preparation

Inserting a MiniDisc... 8 Connections.. 9-10

Advanced Features

Titling a MiniDisc.. 31-34 Editing a recorded MiniDisc.. 35-37 Changing default settings.. 38

Basic operation

Recording... 11-12 Playback.. 13-14

References

Other Features and Caution. 39 MiniDisc System Limitations.. 40 Error Messages.. 41-42 Troubleshooting.. 43-44 Maintenance... 44 Specifications... 45 Index... 46 TERMS OF GUARANTEE.. Back cover

Special Notes

NOTE FOR USERS IN THE U.K.
SERVICE INFORMATION In the unlikely event of your equipment requiring repair, please contact the dealer or supplier from whom it was purchased. Where this is not possible, please contact the telephone number listed below. You will then be given details of how to obtain service. 0345-125387 Please note; all calls will be charged at local rate. Certain replacement parts and accessories may be obtained from our main parts distributor. WILLOW VALE ELECTRONICS LTD. MANCHESTER 0161-682-1415 READING 01189-876444 In the unlikely event of this equipment requiring repair during the guarantee period, you will need to provide proof of the date of purchase to the repairing company. Please keep your invoice or receipt, which is supplied at the time of purchase.

Warnings

q The supplied AC adaptor contains no user ser-
viceable parts. Never remove covers unless qualified to do so. It contains dangerous voltages, always remove mains plug from the main outlet socket before any service operation or when not in use for a long period. DEUTSCH q The AC adaptor supplied with the MD-SR50H must not be used with other equipment. q To prevent fire or shock hazard, do not expose FRANAIS this appliance to dripping or splashing liquids. No objects filled with liquids, such as vases, shall be placed on the apparatus. ESPAOL q Never use an AC adaptor other than the one specified. Otherwise, problems or serious hazards may be SVENSKA created.

ITALIANO

NEDERLANDS

ENGLISH

Special Notes : continued Special Notes

Cautions

q At full volume, prolonged listening to a personal stereo q It is not recommendable to put the MiniDisc into a rear
pocket, as this may damage the product when sitting.
may damage the users hearing. This model complies with the law if used with the correct earphones (model number RPHOH0001AWZZ). If the earphones are damaged in any way, please order using the model number given above. q Use the Portable Minidisc Recorder only in accordance with the instructions given in this manual and do not attempt to interfere with the interlock switch or make any other adjustment as this may result in exposure to hazardous radiation.
q Recording and playback of any material may require
consent, which SHARP is unable to give. Please refer particularly to the provisions of the Copyright Act 1956, the Dramatic and Musical Performers Protection Act 1958, the Performers Protection Acts 1963 and 1972 and to any subsequent statutory enactments and orders. q This equipment complies with the requirements of Directives 89/336/EEC and 73/23/EEC as amended by 93/68/EEC. q US and foreign patents licensed from Dolby Laboratories Licensing Corporation. q The letters in brackets contained in the model number indicate the colour of the product only. Operation and specifications are unaffected.

Precautions

Important
q Do not wear your earphones when you are crossing

Storing the unit

Avoid using or leaving the unit in the following places. q Places exposed to direct sunlight for many hours (especially in cars with the doors and windows closed) or near heaters. (The cabinet may deform, change colour or the unit may malfunction.) q Places exposed to water. DEUTSCH q Places exposed to excessive dust. q Places where temperatures are excessively high or low. FRANAIS q Places (bathrooms) where the humidity is extremely high.

To a stereo system with a "DIGITAL OUT" socket. (See left, Digital connection.) Compared to analogue connection recording, it allows high-quality recording. Note: Some audio systems do not have a DIGITAL OUT socket. Check before connecting.

Recording

Playback Pause Playback

Before recording

Check that the HOLD switch on the back is released.
Notes: q Changing the volume level whilst recording does not affect the recording. q You cannot adjust the bass level whilst recording. Caution:
q Whilst TOC or TOC EDIT! is displayed, do not do
any of the following. Do not jerk or bump the unit. Do not unplug the AC adaptor. Do not remove the rechargeable battery or an alkaline battery. Do not subject the unit to shock. Otherwise, tracks may not be recorded properly.

Recording : continued

Press the REC button. Begin playback on the stereo system connected to this unit. Press the REC LEVEL (5 or 4) button 5 to adjust the recording level (analogue connection only).
q Adjust the recording level so that the maximum
To interrupt recording Press the 06 button.
q The track number will be increased by one each time
the recording is interrupted.
To stop recording Press the s/:OFF button.
q When recording stops, TOC appears. Whilst TOC
sound volume from the source makes the reading swing somewhere between 4 dB and 0 dB. Level meter indicator
appears, recorded contents havent been written on the MiniDisc.

TOC display

0dB 4dB
q For digital connection, it is not necessary to ad-
just the recording level.
To write recorded contents on the MiniDisc Press the s/:OFF button whilst in the stop mode.
q The power turns off after recorded contents have been
Press the PAUSE button on the stereo system to enter the playback pause mode.
q Here you can search for the track to record.

written on the MiniDisc.

Press the 06 button. Begin playback on the stereo system to start recording.

Playback

Right channel Left channel

To the socket

Before Playback

Playback : continued

Insert the earphones plug into the socket. Insert a MiniDisc (page 8). Press the 06 button.
q Playback starts automatically with a playback only

Volume control

Press the VOL+ button to increase the volume and the VOL button to decrease the volume.

Volume (0 - 30)

MiniDisc or a MiniDisc which is protected against accidental erasure (Auto-play function).

Bass control

Each time the BASS button is pressed, the tone will be switched as follows.
BASS 1 BASS 2 BASS 3 BASS OFF Emphasised slightly Emphasised more Emphasised fully Cancelled
To interrupt playback Press the 06 button.
q To resume playback, press the 06 button again.
To stop playback Press the s/:OFF button.

q If the unit is not operated for at least 2 minutes whilst in the stop mode, the power will shut off automatically.
To turn off the power Press the s/:OFF button whilst in the stop mode.
Notes: q If power failure occurs whilst playing a disc using the AC adaptor, disconnect it from the wall socket. Otherwise, playback may start automatically when electricity resumes. q If you connect the AC adaptor without installing the rechargeable battery, playback may start automatically. Be sure to turn off the power. q Reduce the volume before starting to play. MiniDiscs, compared to ordinary cassette tapes, have very little noise. If the volume is adjusted according to your usual expectations of noise, high volume may damage your hearing. q The sound escaping from your earphones may annoy people around you. In particularly crowded places (such as on trains or buses), reduce the volume.

Advanced Recording

Playback sound-actuated recording (Synchronized recording)
Recording automatically starts or pauses by detecting sound from the stereo system (Synchronized recording).
Press the REC button. Begin playback on the stereo system connected to this unit. Press the REC LEVEL ( 5 or 4 ) button to adjust the recording level (analogue connection only). Press the PAUSE button on the stereo system to enter the playback pause mode.
q Select the starting point for your recording and

press the PAUSE button.

Press the ENTER/SYNC button. Begin playback on the stereo system. Recording will begin automatically.

To interrupt recording:

q When the stereo system is stopped, the unit will enter
the synchro recording pause mode. When playback is resumed, the recording will be resumed. q If a silence lasts for 3 seconds or more, the recording will be paused (Pause function does not work for approximately 10 seconds after a recording starts). q When the unit receives sound again, recording automatically starts.
To stop recording: Press the s/:OFF button. To write recorded contents on the MiniDisc Press the s/:OFF button whilst in the stop mode.
Advanced Recording : continued
Double time recording in monaural mode
When recording in monaural long-play mode, the available recording time will be doubled. Monaural long-play recordings can be replayed at double speed, see page 24.

Press the MODE button whilst the recording is paused.

Disappears Appears

Stereo mode

Monaural longplay mode

Start recording.
Notes: q When the unit is stopped after a recording has been made in this mode, the recording mode will return to the stereo mode automatically. q If input is from a stereo source, the sounds from the left and right channels will be combined. q Although the monitor sound you hear in the earphones whilst recording is in stereo, recording will be monaural. q MiniDiscs recorded in the monaural long-play mode may not play on other MiniDisc players.
To start recording from the middle of a track
You can erase a portion of a track and make a new recording.
q All of the tracks that follow the newly recorded track will be erased.
During playback, press the 06 button at the point where you want to begin recording. Press the REC button.
q To cancel the operation, press the s/:OFF button.
Press the ENTER/SYNC button.
q All of the tracks and track names will be erased,
following the point where the playback is paused.

Press the 06 button.

q Recording will start.
Note: q To keep a track after the point you want to make a new recording, move the track and then make recording after that point. (See Editing a recorded MiniDisc, page 35.)
To create your own track numbers To prevent recorded MiniDiscs from being erased accidentally
Slide the accidental erase prevention tab, located on the side of the MiniDisc, in the direction indicated by the arrow.
q The MiniDisc will then be protected against accidental
You can create your own track numbers at any point.
Whilst recording, additional track numbers can be created at any point by pressing the REC button. q One track number will be added every time the REC button is pressed.

erasure.

Recording tracks as a single track
You can record several pieces of music as a single track by disabling the auto marker function. When a recording is paused or whilst recording Press the EDIT button.

Recordable

Recording prevented
To add a recording to such a MiniDisc, slide the accidental erase prevention tab back to its original position.
Helpful tip when attaching a label
When attaching a label to an MiniDisc cartridge, be sure to note the following. If the label is not attached properly, the MiniDisc may jam inside the unit and it may not be possible to remove it. q If the label peels off or partially lifts away, replace it with a new one. q Do not put a new label on top of an existing one. q Attach the label only in the specified location.

Note: q When making digital recordings using a CD player or an MiniDisc player, track numbers will be created automatically regardless of the setting of the auto marker function.

About track numbers

q When recording, if a programmed playback is performed
1. Track numbers are created automatically during recording via the analogue connection when a silence of 1 second or more is detected (Auto marker function). A series of tracks can be recorded as one by disabling the auto marker function see page 18. About 1 second
by the source or playback is performed by selecting tracks manually, the MiniDisc track numbers may not be the same as on the source. q Track numbers may not be created properly, depending on the connected stereo system.
About sampling rate converter
This unit incorporates a sampling rate converter. When this unit is connected to digital equipment such as digital radios or DAT tape recorders that use a different sampling frequency (32 kHz or 48 kHz), recordings can still be made. (The sampling frequency of this unit is 44.1 kHz.)

Silence

First track Second track
2. When recording from a CD or a MiniDisc using the digital connection, track numbers will be created at the same points as on the CD or MiniDisc (Synchro marker function).
First track Second track Third track

Playback side

Note for digital recording
You can not copy a MiniDisc that you recorded from digital inputs to another MiniDisc or DAT. It is prevented by the SCMS (Serial Copy Management System). Recording from analogue inputs is not affected. Digital signals Digitally recorded MiniDisc Cannot record

Track A

Track B

Track C

Recording side
q Track numbers may not be created in proper places,
depending on the source to be recorded from, such as signals with noise. q The track numbers on the playback side may not match the track numbers recorded on the MiniDisc.
CD player, MiniDisc player, etc. Digital connection

Digital connection

Recording from a Microphone
To record from a microphone
Connect a stereo microphone to the MIC IN socket. Insert a recordable MiniDisc (page 8). Press the REC button. Press the REC LEVEL ( 5 or 4 ) button to adjust the recording level.

Level meter indicator

Press the EDIT button repeatedly.
During a mic manual recording
q Timed auto marks will be created every 5 minutes. Track number 1 Track number 2 Track number 3 Track number 4
(A mark is created every 3 minutes.)

(No marks are created.)

(A mark is created every 5 minutes.)
(A mark is created every 10 minutes.)

5 minutes

q The interval between marks may vary slightly com-
During a mic synchro recording
If a silence lasts for 3 seconds or more, a timed auto mark will be created 5 minutes after the previous mark is created.
: Track number which is created by the timed auto mark function. : Track number which is created when a silence lasts for 3 seconds or more during synchro recording.
pared with the actual recording time.
Creating track numbers manually: Press the REC button whilst recording.
Track Track number 1 number 2
Track Track number 3 number 4

Track number 5

2 minutes

5 minutes 1 minute

Advanced playback
To locate the desired portion
For audible fast forward: Press and hold down the 4 button during playback. For audible fast reverse: Press and hold down the 5 button during playback.
q Normal playback will resume when the 5 or 4

button is released.

To locate the beginning of a track
To move to the beginning of the next track: Press the 4 button during playback. To re-start the track being played: Press the 5 button during playback. To locate the next track: Press the 4 button whilst the unit is stopped. To locate the previous track: Press the 5 button whilst the unit is stopped.
q To skip a number of tracks at one time, press the 5
q When the end of the last track is reached during fast
forward, the unit will enter the pause mode. When the beginning of the first track is reached during fast reverse, the unit will enter the playback mode.
or 4 button repeatedly until the desired track number is shown. q When you press the 06 button, play back starts from the beginning of the track.
Advanced playback : continued
Random play or repeat play
During playback, press the MODE button repeatedly to select the playback mode. RANDOM Random play RANDOM Repeat play of tracks in random order Repeat play of all of the tracks Repeat play of a single track 1 No display Normal playback
To play at double speed (Mono recording only)
Press the ENTER/SYNC button whilst a MiniDisc recorded in the monaural long-play mode is being played.

q If a track recorded in the stereo mode is reached during
fast playback, the fast playback mode will be cancelled.
q Depending on the contents recorded on a MiniDisc, it
may be difficult to hear them.
To interrupt fast playback
Press the 06 button during playback. When the 06 button is pressed again, the unit will resume fast playback.
To return to normal playback
Notes: q If the playback mode is selected whilst stopped, press the 06 button to start playback. q When TOC is displayed, random play or repeat play is impossible. q In random play the unit will select and play tracks automatically. (You cannot select the order of the tracks.) After all of the tracks have been played once each in random order, the unit will stop automatically. q During random, random repeat, or single track repeat play, you can forward or reverse the MiniDisc only within the track being played. q During random play, the unit cannot find the beginning of any track which has been played. q Repeat play lasts until you stop the unit.

Checking Displays

To check the elapsed time and remaining time of the track To check the remaining recording time and the total playing time
Whilst in the stop mode, press the DISP button.
Each time the button is pressed, the display will change as follows: Total number of tracks Disc name
During playback, press the DISP button.
Each time the button is pressed, the display will change as follows:

Track number Track name

Elapsed playback time

Remaining recording time

Remaining playback time Notes: q If the disc name or the track name was not originally recorded on the MiniDisc, NO NAME will be displayed. q Remaining recording time will not be displayed with a play-back only MiniDisc. q Elapsed playback time and remaining playback time may be different from the actual time.

Total playing time

Checking Displays : continued
To display the playing time of an individual track Checking the remaining amount of battery level

The remaining amount of battery level is shown by the battery indicator ( ) during operation.
How to read the battery indicator
Whilst in the stop mode, press the 5 or 4 button to display the track number and track name.
When the battery level is high
When the battery level is very low
q When the battery is completely discharged, the battery
Press the DISP button to display the playing time for that track.

Playing time

q Each time the 5 or 4 button is pressed, the
playing time of the previous or next track will be displayed.
indicator will flash. Recharge the battery or replace the alkaline battery with a new one. q When the battery has run completely out, BATT EMPTY will appear. Then, the power will be disconnected automatically. Notes: q If you use the battery which you stopped charging halfway, may appear. It does not mean that the battery is completely charged. q The battery indicator will not correctly display the remaining capacity for approximately 10 seconds after the power has been turned on. q When the AC adaptor or a separately available car adaptor is used, the battery indicator will not be shown. q The number of bars shown in the battery indicator may increase or decrease, depending on the operation being performed. This is normal.

Battery Power

Charging the rechargeable battery
When a separately available rechargeable battery is used for the first time or when you use it after a long period of disuse, be sure to charge it fully.
Slide the battery cover as far as it will go to the outside. Lift the battery cover.
q Do not force the battery cover open too far.

5 To wall socket

Insert the rechargeable battery from the (+) marked side.
q A rechargeable battery other than the AD-N70BT
cannot be charged. AC 230-240V, 50/60 Hz

5 To the DC IN

5V socket
Close the battery cover. Plug the AC adaptor into the wall socket, and then insert the plug on the other end into the DC IN 5V socket. Press the :OFF/CHRG (s ) button.
will flash, and battery will begin charging.
Battery Power : continued
About charging time Using with the rechargeable or alkaline battery
After about 3.5 hours have passed, will go out. The battery charging is about 90% complete. To charge the battery fully, continue charging for about 2 more hours.
In this case, you do not need to press the :OFF/CHRG (s ) button. Even if the :OFF/CHRG (s ) button is pressed, will not appear. Notes: q This unit should only be used within the range of 0C 40C (32F - 104F). q Charge the battery within the range of 5C - 35C (41F - 95F). q Charging is completed when does not blink when you plug in the AC adaptor and press the :OFF/CHRG (s ) button. q The unit can be left in the charging state after it is completed. Caution: q Use the specified battery AD-N70BT only. Do not charge a battery (nickel-cadmium, alkaline, etc.) other than that specified. q Do not remove the outer cover of the rechargeable battery. It may cause heat generation, fire, or explosion. q Do not dip the battery in water, do not dispose of it in a fire, and do not take it apart. q If the rechargeable battery terminal is dirty, charging may not start. In such a case, wipe off the dirt with a dry cloth. q Do not disassemble the battery.

2. What is a MiniDisc for stamping?
A MiniDisc that contains the same tracks in the same order as the master MiniDisc. (Make sure that the total number of tracks of the master MiniDisc and the one for stamping are the same.)
When the unit displays CHANGE MD, remove the master MiniDisc.
q Remove it without turning off the power. Or, the
operation will be cancelled.
Operation of the MiniDisc for stamping
Load a MiniDisc for stamping.
Notes: q If the total number of tracks on the master MiniDisc does not match that on the MiniDisc for stamping, the unit will display "Can't STAMP" and turn off the power.
If this happens, adjust the total number of tracks on the newly recorded MiniDisc using the edit operation. q Use a MiniDisc that was recorded by this unit to make a MiniDisc for stamping. Character information may not be transferred if you use a MiniDisc recorded by other equipment. In such a case, enter at least one character for the disc name or the track names. You can transfer information once you record the TOC.
q The unit will finish recording the character infor-
mation and enter the stop mode.
Editing a recorded MiniDisc

Advanced features

To erase tracks one at a time
To erase all of the tracks at once
Start playing the track to be erased, and press the 06 button. Press the EDIT button to select ERASE.
Whilst in the stop mode, press the EDIT button to select ALL ERASE.
q To cancel the operation, press the s/:OFF button. q To cancel the operation, press the s/:OFF button.
Press the ENTER/SYNC button again.
q The track will be erased.
To erase other tracks, repeat steps 1 - 4.
q All of the tracks will be erased.
Caution: Once a track has been erased, it can not be recovered. Check the track number before erasing it.
Editing a recorded MiniDisc : continued

To divide a track

To combine tracks
Start playing the track to be divided into two. Press the 06 button at the point where you want to divide the track. Press the EDIT button to select DIVIDE.

MiniDisc System Limitations
The unit may have the following symptoms whilst recording or editing. The unit is not out of order. SYMPTOM LIMITATIONS DISC FULL or TOC FULL appears More than 255 tracks (maximum) cannot be recorded regardless of the reeven though the MiniDisc still has re- cording time. cording time left. If the MiniDisc is recorded or edited repeatedly or if it has scratches (recording skips scratched parts), you may not be able to record the maximum tracks above. The remaining recording time does not The unit does not count non-recorded portions that last 12 or fewer seconds increase even though you erased tracks. to display the remaining recording time. The time may not increase even if you erase short tracks. The total of the recorded time and the One cluster (approximately 2 seconds) is the minimum unit for recording. remaining time does not match the maxi- For example, a 3-second track uses 2 clusters (approximately 4 seconds). mum recordable time. Therefore, the actual recordable time may be shorter than the displayed time. Combine function does not work. A MiniDisc on which recording and editing are repeated may not allow the combine function. One track is divided and recorded in separate places on a repeatedly recorded or edited MiniDisc. Sound may skip.
Sound skips in fast reverse/forward.
A track number is created in the middle A track number may be created if there are scratches or dust on the MiniDisc. of a track.

Error Messages

ERROR MESSAGES BATT EMPTY BLANK MD

MEANING

q The battery is run down. q Nothing is recorded. q You tried to record from a copy proq q q q q

REMEDY

q Charge the rechargeable battery or replace the alka-
line battery (or use the AC adaptor for power).
q Replace the disc with a recorded disc. q Record using the analogue cable. q Change the stop position of the track and then edit it. q Reload the disc. q Replace it with another recorded disc. q Re-record or replace it with another recordable disc. q Check the number of tracks. q Replace the disc with another recordable disc.
Cant COPY Cant EDIT Cant READ (*) Cant REC Cant STAMP Cant WRITE DEFECT DISC FULL Er-MD (**) HOLD LOCKED NO DISC
hibited MiniDisc. A track cannot be edited. The disc data cannot be read because the disc is damaged. Recording cannot be performed correctly due to vibration or shock. Stamp function does not work. Cannot save the TOC information correctly to a MiniDisc. (A large portion of the disc has been damaged.) The disc is scratched.
q If the sound you hear is not right, record again. q Replace the disc with another recordable disc. q Replace it with another recordable disc.
q The disc is out of recording space. q The microprocessor has reported a
q To have it repaired, go to the distributor where you purchased the unit. system fault and the unit is out of order. q Return the HOLD switch to its original position. q The unit is in the hold mode. q You removed a MiniDisc whilst re- q Turn off the power and remove the MiniDisc. cording or editing. q Load a disc. q A disc has not been loaded.

Specifications

As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

s General

Power source: DC 5V: DC 1.5V:
AC adaptor (AC 230 - 240V, 50/60 Hz) Commercially available, AA size (LR6), alkaline battery x 1 DC 1.2V: Optional rechargeable Nickel-Metal Hydride battery (AD-N70BT) x 1 DC 4.5V: Optional car adaptor, AD-CA20X (for cars with a 12-24V DC negative earth electrical system) Power consumption: 7 W (AC adaptor) Output RMS; 20 mW (10 mW + 10 mW) power: (0.2% T.H.D.) Charging Approx. 3.5 hours (90 %) time: Approx. 5.5 hours (fully charged) (When using the AC adaptor included with the unit) Battery life: When using a commercially When using the optional reavailable, high capacity, AA chargeable battery AD-N70BT size (LR6), alkaline battery (fully charged) Continuous recording: Continuous recording: Approx. 3 hours Approx. 4.5 hours Continuous play: Continuous play: Approx. 7 hours Approx. 6.5 hours q The continuous recording time is for analogue inputs when the volume level is set to VOL 0. q The continuous play time shows the value when the volume level is set to VOL 15. q The above values are the standard values when the unit is charged and used at an ambient temperature of 20C (68F). q The operating time when using an alkaline battery may be different, depending on the type and manufacturer of the battery, and on the operating temperature.
Input sensitivity: Recording level MIC H MIC L LINE Output level:
Reference input level 0.25 mV 2.5 mV 100 mV
Input impedance 10 k ohms 10 k ohms 20 k ohms
Specified Maximum Load output output level impedance 10 mW + 10 mW 32 ohms Earphones 250 mV (-12 dB) 10 k ohms LINE Dimensions: Width: 99.9 mm (3-15/16) Height: 22.9 mm (29/32) Depth: 77.9 mm (3-3/32) Weight: 168 g (0.37 lbs.) without battery Input socket: Line/optical digital, microphone (powered by the main unit) Output socket: Earphones (impedance: 32 ohms)

s MiniDisc Recorder

Portable MiniDisc recorder Non-contact, 3-beam semi-conductor laser pick-up Stereo 2 channels/monaural (long-play mode) 1 channel Frequency response: 20 20,000 Hz ( 3 dB) Rotation speed: Approx. rpm Error correction: ACIRC (Advanced Cross Interleave ReedSolomon Code) Coding: ATRAC (Adaptive Transform Acoustic Coding), 24-bit computed type Recording method: Magnetic modulation overwrite method Sampling frequency:44.1 kHz (32 kHz and 48 kHz signals are converted to 44.1 kHz, and then recorded.) Wow and flutter: Unmeasurable (less than 0.001% W. peak) Type: Signal readout: Audio channels:
Connections.. 9,10 Insert a MiniDisc.. 8

Editing

Disc name.. 31 Stamping titles.. 33,34 To add characters.. 32 To combine tracks.. 36 To divide a track... 36 To erase a character.. 32 To erase all of the tracks at once.. 35 To erase tracks one at a time. 35 To move track.. 37 Track name.. 31

SHARP ELECTRONICS (U.K.) LTD.
Sharp House, Thorp Road, Newton Heath, Manchester, M40 5BE

SHARP CORPORATION

TINSE0290AWZZ B0002.TO