ICF-CD2000

CD/AM/FM Stereo Travel Clock Radio With Compact Disc Player
v v v v v TRAVEL CD CLOCK RADIO WITH ULTRA SLIM DESIGN WAKE TO RADIO, BUZZER OR CD AM/FM DIGITAL TUNER BUILT-IN STEREO SPEAKERS 10 SECOND ELECTRONIC SHOCK PROTECTION (ESP) WORLD/LOCAL TIME SYSTEM WITH EASY DST ADJUSTMENT MEGA BASS SOUND SYSTEM AUTO SCAN 5 RANDOM STATION PRESETS BACKLIT LCD DISPLAY FORWARD/REVERSE TIME SETTING STEREO HEADPHONES AND AC ADAPTOR SUPPLIED STEP-UP FEATURE NEW FEATURE

features

v TRAVEL CD CLOCK RADIO WITH ULTRA SLIM DESIGN is an attractive,

specifications

FREQUENCY RANGE: AM: 530-1710 kHz
easy to carry functional entertainment companion anywhere in the world
WAKE TO RADIO, BUZZER OR CD as you prefer, simply by selecting your

FM: 87.5-108 MHz

ANTENNA SYSTEM: AM: Built-in Ferrite Bar Antenna

FM: Telescopic Antenna

SPEAKERS: 1 916" (40mm) x 2 POWER REQUIREMENTS: "AA" x 4 batteries, 3V DC
preference when setting the alarm
AM/FM DIGITAL TUNER provides the most accurate drift-free tuning of

AM and FM radio stations

BUILT-IN STEREO SPEAKERS enhance the realistic listening effect with
individual left- and right-channel speakers
v 10 SECOND ELECTRONIC SHOCK PROTECTION (ESP) retains up to 10
seconds of music in memory for smooth, uninterrupted playback even if the player is bumped or jarred
v WORLD/LOCAL TIME SYSTEM WITH EASY DST ADJUSTMENT lets you
Lithium x 1 (for clock) AC 120V, 60 Hz with supplied Adaptor DIMENSIONS (WHD): 6 38" x 1 38" x 6 18" (162.6 x 35 x 156mm) WEIGHT: 1 lb 9 oz (706g) incl. batteries SUPPLIED ACCESSORIES: Stereo headphones (ear bud type), AC Adapter, Lithium battery (for clock) OPTIONAL ACCESSORIES: "AA" batteries x 4
match up time zones over the globe, automatically converts to local time, and provides simple correction for Daylight Savings Time where appropriate
MEGA BASS SOUND SYSTEM produces rich, deep bass tones for a
thoroughly enjoyable listening experience
v AUTO SCAN automatically searches all clearly available radio stations
and pauses briefly on each, to help make station selection easier when in unfamiliar locations
5 RANDOM STATION PRESETS provides for convenient one-button
electronic tuning of your choice of five favorite AM or FM radio stations
BACKLIT LCD DISPLAY allows the display to be seen easily even at night FORWARD/REVERSE TIME SETTING with individual forward and reverse
buttons for each alarm for faster, easier setting
STEREO HEADPHONES SUPPLIED to permit connecting stereo
headphones for private listening anywhere
AC ADAPTOR SUPPLIED provides for either portable use with four "AA"
2002 Sony Electronics Inc. Reproduction in whole or in part without written permission is prohibited. All rights reserved. Sony is a trademark of Sony. Features and specifications are subject to change without notice. Non-metric weights and measures are approximate. *Although ESP 2 provides excellent protection against skipping, it will not eliminate skipping if subjected to constant jarring activity such as jogging.
batteries or with standard household current
Sony Electronics Inc 1 Sony Drive, Park Ridge, New Jersey 07656 www.sony.com

Printed in USA 2/2002

ICF-CD2000/CD2000S

SERVICE MANUAL

Ver 1.0 1999. 10
US Model Canadian Model E Model Tourist Model

ICF-CD2000

AEP Model UK Model

ICF-CD2000S

Photo: ICF-CD2000 (US model)
Model Name Using Similar Mechanism Optical Device Name Optical Pick-Up Name
D-E551 CDM-2911EBA DAX-11E

SPECIFICATIONS

FM/AM CD CLOCK RADIO

FM/SW/MW CD CLOCK RADIO

MICROFILM
TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. 7.
7-1. 7-2. 7-3. 7-4. 7-5. 7-6. 7-7.
SERVICING NOTES.. 3 GENERAL.. 5 DISASSEMBLY.. 8 SERVICE MODE.. 11 TEST MODE.. 12 ELECTRICAL ADJUSTMENTS.. 15 DIAGRAMS
IC Pin Function Description.. Block Diagram CD Section .. Block Diagram Main Section .. Printed Wiring Boards MAIN/JACK Boards .. Schematic Diagram MAIN/JACK Boards . Printed Wiring Boards LCD/KEY Boards . Schematic Diagram LCD/KEY Boards . 45
CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.
Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. HOW TO CHANGED THE CERAMIC FILTERS This model is used two ceramic filters of CF1 and CF3. You must use same type of color marked ceramic filters in order to meet same specifications. Therefore, the ceramic filter must be changed two pieces together since its supply two pieces in one package as a spare parts.
EXPLODED VIEWS.. 53 ELECTRICAL PARTS LIST. 57
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY.
SECTION 1 SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. Before Replacing the Optical Pick-Up Block Please be sure to check thoroughly the parameters as par the Optical Pick-Up Block Checking Procedures (Part No.: 9-960-02711) issued separately before replacing the optical pick-up block. Note and specifications required to check are given below. FOK output: IC501 ts pin S curve P-to-P value: 1.2 Vp-p IC501 wa pin When checking S curve P-to-P value, remove the lead wire to disc motor. RF signal P-to-P value: 0.8 to 1.3 Vp-p Traverse signal P-to-P value: 0.7 to 1.8 Vp-p The repairing grating holder is impossible. Precautions for Checking Emission of Laser Diode Laser light of the equipment is focused by the object lens in the optical pick-up so that the light focuses on the reflection surface of the disc. Therefore, be sure to keep your eyes more then 30 cm apart from the object lens when you check the emission of laser diode. Laser Diode Checking Methods During normal operation of the equipment, emission of the laser diode is prohibited unless the upper panel is closed while turning ON the S423. (push switch type) However, in the service mode, the laser diode always emits light even if S423 is not turned on. The following two checking methods for the laser diode are operable. Method-1 (In the service mode or normal operation): Emission of the laser diode is visually checked. 1. Open the upper lid. 2. Push the S423 as shown in Fig. 1. (Unnecessary in the service mode) 3. Press the [CD u] key. 4. Check the object lens for confirming normal emission of the laser diode. If not emitting, there is a trouble in the automatic power control circuit or the optical pick-up. During normal operation, the laser diode is turned ON about 2.5 seconds for focus searching.

Fig. 1 Method to push the S423
Method-2 (In the service mode or normal operation): Check the value of current flowing in the laser diode. 1. Remove the upper panel. 2. Connect a digital voltmeter as show in Fig. 2. 3. Press the [CD u] key. 4. Calculate current value by the reading of the digital voltmeter. Reading of the digital voltmeter (V) 2.2 () = current value (A) (Example) Reading of the digital voltmeter of 0.082 V: 0.082 V2.2 = 0.037 (A) = 37 mA Current value of the specified: 16 to 18 mA 5. Check that the current value is within the following range. +5 Current value of the specified 11 mA (25 C) Variation by temperature: 0.4 mA/C Current increases with temperature increased. Current decreases with temperature decreased. If the current is more than the range above, there is a trouble in the automatic power control circuit or the laser diode is in deterioration. If less than the range, a trouble exists in the automatic power control circuit or the optical pick-up. MAIN Board (Conductor Side)
digital voltmeter (DC3 V range)

TP (IOP 1)

C540 + C541 A K C510

R632 C619

TP (IOP 0)

C534 + C533

C536 R535

TP (GND)

C587 C586

L508 L515

TP (VC)

C542 C502 C543 + R850

TP (RF)

TP (TE)

C535 +
C803 R584 C504 C559 C506 R566

1C 2B 2E

1E 1B 2C

C565 C545

C807 C806 C805

+ C561 R501

2C1B 1E

2E2B1C R558

R854 2E 2B 1C

C595 +

C568 + C551

R549 C552 R591

+ C515

R524 C516

R478 C495

16 FB401

Q507 R575

2E2B 1C

C520 +

C494 R483 C419 R8 R477

C553 2C1B 1E

R568 2C 1B 1E R557

1-673-930-

11 (11)

Fig. 2 Digital voltmeter connecting location

R552 R553

+ C608

SECTION 2 GENERAL

This section is extracted from instruction manual.

SECTION 3 DISASSEMBLY

This set can be disassembled in the order shown below.

[LCD Display Check Mode] Step1 (LCD display check mode setting metyods) 1. Connect TP446 (TUNER TEST) to the TP444 (GND). 2. Insert external power supply. Step2 (Operation in the LCD display check mode) 1. All segments of LCD light up if the LCD display check mode is activated. 2. If each key is pressed, the LCD display is as shown below. At the same time, for some keys, the following operation is performed.

[ALARM TIME]:

Buzzer sound OFF

[SNOOZE]:

[CLOCK]:

AM WORLD BUZZER TIMEDIF

FM 2 MW

LED ON

[ALARM TRACK/STATION]: [ESP]:

INTROSCAN REPEAT ALL

WAKEUP

LED OFF Beep sound ON

[>]: [CD PLAY MODE]:

SHUFFL REPEAT1

Beep sound OFF

[WORLD/LOCAL]:

LOCAL PM
[BAND]: [D.S.T SUMMER T.]:

FM1 MHz kHz

PRESET
[PRESET 1]: [ALARM MODE]:

[PRESET 2]:

Buzzer sound ON

[PRESET 3]:

[PRESET 4]:

[PRESET 5]:

[x OFF, ALARM RESET]: All lit
Step3 (Resetting of LCD display check mode) 1. Remove external power supply. 2. Disconnect TP446 (TUNER TEST) and TP444 (GND).
Connecting Location: LCD Board (Conductor Side)
TP445 (CD TEST 1) TP448 (CD TEST 3) TP449 (GND)

TP444 (GND)

TP446 (TUNER TEST) TP447 (CD TEST 2)
SECTION 6 ELECTRICAL ADJUSTMENTS

TUNER SECTION

[AM (MW)] Setting: Band switch : AM (MW)
AM RF SSG Put the lead-wire antenna close to the set. 32 set 30% amplitude modulation by 400 Hz signal Output level: as low as possible +
i (headphone) jack (J301)

0 dB=1 V

AM (MW) FREQUENCY COVERAGE ADJUSTMENT Adjustment Part Frequency Display Reading on Digital Voltmeter L13 Confirmation 530 (531) kHz 1,710 (1,602) kHz no mark: US, CND ( 1.7 V 8.5 V (9.0 V) ) : AEP, UK, E, SP, JE
AM (MW) TRACKING ADJUSTMENT

level meter

Adjust for a maximum reading on level meter L7 CT2 no mark: US, CND Adjustment Part Confirmation 580 kHz (621 kHz) <621 kHz> 1,490 kHz (1,404 kHz) <1,485kHz> ( ) : AEP, UK < > : E, SP, JE
FM FREQUENCY COVERAGE ADJUSTMENT Frequency Display 87.5 MHz <76.0 MHz> Reading on Digital Voltmeter 2.3 V <1.5 V> 11 V <8.8 V> < > : E, SP, JE
[FM] Setting: Band switch : FM
MAIN board FM/SW Telescopic level meter Antenna (ANT1) 32 + set
Confirmation 108 MHz <108.0 MHz>
no mark: US, CND, AEP, UK FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter L14 CT2 87.5 MHz 108.0 MHz

L12 SW FREQUENCY COVERAGE Adjustment TP (VT) FM TRACKING CT3 Adjustment L14 RV2 FM AUTO SCAN Adjustment TP16 T1 AM IF RV1 Adjustment FM VCO Adjustment SW CT1 TRACKING L8 Adjustment
L13 AM (MW) FREQUENCY COVERAGE Adjustment
AM (MW) L7 TRACKING CT2 Adjustment
MAIN Board (Conductor side)

TP (DET OUT)

LCD Board (Conductor side)

TP418 (AFC) TP419 (REG)

CD SECTION Precautions for Adjustment 1. Before beginning adjustment, set the equipment to service mode. After the completion of adjustment, be sure to reset the service mode. For more information, see Service Mode (service program) on page 10. 2. Perform adjustments in the order given. 3. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated. 4. Power supply voltage requirement: DC6 V in battery terminal VOLUME knob : Minimum MEGA BASS switch : OFF Before Beginning Adjustment Set the equipment to service mode (See page 11) and check the following. If there is an error, repair the equipment. Checking of the sled motor 1. Open the upper panel. 2. Press the > and. keys and check that the optical pickup can move smoothly without sluggishness or abnormal noise in innermost periphery outermost periphery innermost periphery > : The optical pick-up moves outwardly. : The optical pick-up moves inwardly. Checking of focus searching 1. Open the upper panel. 2. Press the [CD u] key. (Focus searching operation is activated continuously) 3. Check the object lens of the optical pick-up for smooth up/ down motion without sluggishness or abnormal noise. VCC Check Use a SUM-3 battery for VCC check Check Procedure:
digital voltmeter (DC range) MAIN board Each TP (See page 20) +
Tracking Balance Check Condition: Hold the set in horizontal state. Check Procedure:
oscilloscope (DC range) MAIN board TP (TE) TP (VC) (See page 14)
1. Put the disc (YEDS-18). 2. Connect the oscilloscope to TP (TE) and TP (VC) on the MAIN board. 3. Set the equipment to service mode stop state. (See page 11) 4. Confirm that the waveform on the oscilloscope becomes up/ down symmetrical with an axis of 0 V.
Note: Take long sweep time for easy monitoring.

A 0.7 1.7 Vp-p B A=B

A 0V B A=B

5. After the completion of adjustment, reset service mode. (See page 11) Check Location: MAIN Board (See page 20)
1. Set the equipment to service mode stop state. (See page 11) 2. Connect the digital voltmeter to each test point on the MAIN board as follows. 3. Confirm that the reading on digital voltmeter satisfy specified value of each test point.
Test point +3 V +3.4 V DV MDV OPDV POWER +B PRE +B PRE VC Specified value 3.2 V 3.2 V 4.5 V 2.6 V 1.75 V 3.8 V 3.8 V 1.6 V
4. After the completion of adjustment, reset service mode. (See page 11) Check Location: MAIN Board (See page 20)

SECTION 7 DIAGRAMS

Focus bias Check Condition: Hold the set in horizontal state. Check Procedure:
oscilloscope (AC range) MAIN board TP (RF) TP (VC) (See page 14)
Check Location: MAIN Board (Conductor Side)
7-1. IC PIN FUNCTION DESCRIPTION
LCD BOARD IC401 LC867124A-5M74 (SYSTEM CONTROLLER, LCD DRIVER) Pin No. 5 Pin Name SHOCK PAUSE WOK BUZ CORES LMT RES XT1/P74 XT2/P75 VSS1 CF1 CF2 VDD1 KEY1 I/O O O O O O I I I O I O I Description C2 flag shock detection once danger signal output to the LC78626KE (IC502) L: shock detection danger Pause signal output to the LC78626KE (IC502) Buzzer sound drive signal output terminal External reset signal output to the CD control signal counter (IC404) and LC78626KE (IC502) L: reset Sled limit-in detection switch (S603) input terminal System reset signal input from the reset signal generator (IC402) L: reset For several hundreds msec. after the power supply rises, L is input, then it changes to H Sub system clock input terminal (32.768 kHz) Sub system clock output terminal (32.768 kHz) Ground terminal Main system clock input terminal (3 MHz) Main system clock output terminal (3 MHz) Power supply terminal (+2.8V) Key input terminal (A/D input) S402, S403, S421, S422, S424 (WORLD/LOCAL, D.S.T. SUMMER T., ESP, CD PLAY MODE, CLOCK) keys input Key input terminal (A/D input) S711 to S715 (TUNE/SCAN TIME SET ., ALARM TRACK/STATION, ALARM TIME, ALARM MODE, BAND) keys input Key input terminal (A/D input) S706 to S710 (STATION zSELECT/zPRESET 1/2/3/4/5) keys input Key input terminal (A/D input) S701 to S705 (TUNE/SCAN TIME SET + >, SNOOZE SLEEP OFF/LIGHT, x OFF ALARM RESET, RADIO SLEEP, CD u ) keys input CD door open/close detection switch (S423) input terminal AFC control signal output to the CXA1111N (IC1) when FM reception Input of monitor signal of constant-voltage power supply generated form CXA1111N (IC1) (A/D input) Battery voltage detection input terminal D-RAM low capacity alarm signal input from the LC78626KE (IC502) L: less capacity Data connection point detect completion signal input from the LC78626KE (IC502) H: detection completed (D-RAM writing starts) D-RAM writing interruption signal input from the LC78626KE (IC502) (RZP pulse signal input in case of overflow or shock) DRF (focusing detection) signal input from the LA9251M (IC501) Subcode Q output standby input from the LC78626KE (IC502) C2 flag signal input from the LC78626KE (IC502) Power failure detection input terminal L: power on, H: power failure H active L: muting on Shift clock output of the main system clock (3 MHz)

SQ OUT 65 WRQ 66 PAUSE IN 77 WOK 76 CNTOK 75 OVF 74 SHOCK 80 RWC 62 C2F 46 EMPN 79
SQ OUT WRQ PAUSE WOK CNTOK OVR SHOCK RWC C2F EMPN COIN CLOCK

(Page 28)

(Page 30)
D514 SL M601 (SLED) H SLED OUT4+ F/R DRIVE IN28 OUTSLED SWITCH Q503-2 SLOF 33 SLED SERVO Q509 D503 SLED SWITCH Q512 SLD SLED SERVO SL+ SLEQ
(Page 29) START S/S 27 B+ B+
B+ 28 MUTE APC SWITCH Q602 APC DRV 23 ASP DRV 17 B+ SWITCH Q606 ASP SWITCH Q606

B+ SWITCH Q604,605

B+ (CD 3.4V)

M602 (SPINDLE)

H SPINDLE

OUT3+ OUT3

32 SPINDLE SWITCH Q503-1

SPINDLE SERVO SP

SPCLV 45 SP 23 SPINDLE SWITCH Q502-2

S603 (LIMIT)

25 SERVO SWITCH Q507 SPINDLE SWITCH Q514 DNB-EXT DRV B+
(Page 28) FOCUS SWITCH Q501-1 FOCUS SWITCH Q502-1 CDRES DRF SL+ SL

B+ SWITCH Q607

B+ SWITCH Q608,609

(Page 29)

(Page 30) (Page 30) (Page 29)

(Page 26) (Page 26)

BLOCK DIAGRAM MAIN Section
(CD2000) FM / AM FRONT-END IF DISCRI, IF AMP IC1 (1/2) FM RF IN FM / AM FE OUT CF3 10.7MHz FM IF IN 15 FM / AM FRONT-END IF DISCRI, IF AMP IC1 (2 / 2) MPX IC2 LCH OUT 9 RCH DECODER OUT 10 SYNC DETECTOR PILOT 8 MIX AMP IC302 (1 / 2) 6 R-CH TONE AMP IC301 (1 / 4), IC302 (2 / 2), IC303 (2 / 2), Q101, 201, 104, 204, LOW-PASS FILTER AMP IC303 (1 / 2) 3 VCO VCO
ANT1 FM/SW TELESCOPIC ANTENNA
B. P. F BPF1 D12 CT3, L14 FM TRACKING L14 FM RF D13 CT3

FM FRONT-END

FM IF DISCRI

DET OUT

21 Q9 MUTING Q11 MUTING

RV301 VOLUME

POWER AMP IC1 R-CH J301

(CD2000S) D1

CF1 10.7MHz 7 FM RF T1 AM IF

FM DISCRI METER 16

MUTING Q102

TUNER MUTE Q311

MUTING Q103 BEEP MUTE Q310

CF2 450kHz 14

AM IF IN

(CD2000S) D8

LFM OSC

AM IF DISCRI

STEREO DET Q10 AM IF OUT

RV1 FM VCO

B+ (CD3.4V)

HEADPHONE SWITCH Q312

SP101 SPEAKER L CH

REG OUT

FM / AM SELECT BAND SELECT
D102 R-CH 20 AFC / AGC1 MUTING Q913 S301 MEGA BASS ON OFF B+ B+ IC301 (2 / 4) 10 LCD401 (LIQUID CRYSTAL DISPLAY) B+ B+ SWITCH Q908 B+ SWITCH Q907 B+

RF AMP Q1 D9-1 SW / MW SWITCH Q8 CT2 L7 AM (MW) FERRIRE-ROD ANTENNA RF AMP Q3 L8 SW ANTENNA CT1 CT1, L8 SW TRACKING
MUTING CONTROL SWITCH Q910
MUTING CONTROL SWITCH Q909
MUTING CONTROL SWITCH Q308, 309

SP102 SPEAKER R CH

(CD2000) DAM RF IN

RV2 FM AUTO SCAN

B+ SWITCH Q914 D905

CT2, L7 AM (MW) TRACKING

AM FRONT-END
COM0 COM3 L12 SW OSC SW SWITCH Q5 D405-408 (LCD BACK LIGHT) LED DRIVE Q403, 405, 411, 412 SW SWITCH Q2
31 40, S4 S31 BUZ 4 BUZZER DRIVE Q402, 415 B+ B+ SWITCH Q905, 912 B+ SWITCH Q906 IC301 (3 / 4) 2 B+ B+ SWITCH Q301 B+

MW SWITCH Q4

L12 SW FREQUENCY COVERAGE

73 LED ON

BEEP MUTE 30

BEEP MUTE Q401

D428 (1 / 2) D427 D428 (2 / 2) D429
RCK 76 SL+ 75 KEY1 - KEY4

RCK SL+ SL-

IC301 (4 / 4) 12

L13 AM (MW) OSC

MW SWITCH Q6

AM SOC

SL- 74 SHOCK 1 D433 RES 7 SYSTEM CONTROLLER, LCD DRIVER IC401
(Page 26) (Page 25) (Page 25)
KEY MATRIX S402, 403, 421, 422,424, 701-715
RESET SIGNAL 2 GENERATOR IC403 D904
B+ B+ B+ D+3.4V REGULATOR IC402 2

B+ D903 B+

(Page 26)

AC IN 28 D413

L13 AM (MW) FREQUENCY COVERAGE
(CD2000) FM / AM PLL IC3 S423 OPEN S401 (OPEN MAIN) BATT 21

J901 DC IN 6V

18 OPEN A MUTE 72

AUDIO MUTE Q406

AM IN SW / MW
12BITS PROGRAMMABLE DIVIDER
AM / FM IF MUT DATA SHIFT REGISTER LATCH

IF IN 9 D434

BAT401 LITHIUM BATTERY 3V (FOR BACK-UP)
DRY BATTERY SIZE "AA" (IEC DISGNATION R6) 4PCS. 6V

TU ON 71

TUNER ON SWITCH Q404

D404 D420 D421

MO / ST AM / FM
COIN CQCK SQOUT RWC C2F EMPN PAUSE WOK CNTOK OVR XT1 / P74

XT2 / P75 CDRES

16 PD AIN AOUT 18 XIN
PHASE DETECTOR CHARGE PUMP

26 WRQ 19 AFC 20 REG

CD ON 70

CD ON SWITCH Q410

BATT DET Q413, 414
SHIFT 29 CF1 CF2 B+ 3 +3.3V REGULATOR 2 IC901 B+
SIGNAL PATH : FM : AM (MW)
8 D425 (2 /2) D423 (2 /2) D424 (2 /2) D426 (2 /2)

11 X402 3MHz

DC / DC CONVERTER Q74-76, T70

19 X1 75kHz 20

REFERECE DIVIDER

CCB I/F

DO CL DI CE
D425 (1 / 2) D423 (1 / 2) D424 (1 / 2) D426 (1 / 2)

X401 32.768kHz

: CD PLAY
LEVEL SHIFT Q407, 408 MUTING CONTROL SWITCH Q904 DRF VZ
EMPN PAUSE WOK CNTOK OVR SHOCK

* C56 (CD2000:US, CND/CD2000S) METAL
CERAMIC (CD2000:E, SP, JE) (CD2000S) R11 C81 C80 X1

R4 A K

L15 L14 FM RF 1

(CD2000S) C28

D434 D423 D424 D425 D426
A + C88 K A A K A A K A A K A A K A
CD2000:E, SP, JE/ CD2000S TP16

(CD2000S) R37

C76 C75

R83 R84 R85

R80 R79 R78 R77
R10 (CD2000S) (CD2000:E, SP, JE) S422 CD PLAY MODE

10 C71

T1 AM IF

C46 C48 R32

C74 C73

(Page 42)

LCD BOARD CN401

C39 R27

L8 SW ANTENNA

S424 CLOCK

A D1 A/K A

C36 12

C8 C7 A

L70 R75 1C2B 2E

R582 A A K

R23 24

1E1B 2C (CD2000S)

R801 R803

FB2 FB1 L18

FB3 E CB

R33 C50

C626 + E CB

2E 2B 1C R641

K C611 K A

C52 RV1 FM VCO 5

R481 C51 +

2E K 2B 1C A

2C 1B 1E

JACK BOARD

+ C604

11 C605 L606
Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. % : indicates tolerance. f : internal component. C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice por tant le numro spcifi.

+ C341

1 M601 (SLED)

Q74 B C E

R608 R615 C625 R616

R91 L603

R637 C603 R639

Q75 B C E

Q607 Q909
TP (+3V) Q608 C 2 CR909 E CB K A A

L601 C905

ON OPTICAL PICK-UP BLOCK (DAX-11E) L512

CN602 2

S301 MEGA BASS

1-673-933-

C623 +

C904 +

C613 +

C B E A

TP (OPDV)
C616 C618 R638 L607 C566 L608

+ OFF R339

R905 A

R912 R916

+ C620 R635 TP R636 (DV) R628 C621 TP R605 (+3.4V)
DRY BATTERY SIZE AA (IEC DESIGNATION R6) 4PCS.6V

+ C629

C102 C202

T70 DC/DC CONVERTER

R92 C85

D602 Q605

BCE 6 10

C B E A K A

1-673-933- (11)
U : B+ Line. H : adjustment for repair. Power voltage is dc 6 V and fed with regulated dc power supply from external power Voltage jack. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : AM (MW) : SW [ ] : CD PLAY : Impossible to measure Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : FM f : AM (MW) J : CD PLAY Abbreviation CND : Canadian model JE : Tourist model SP : Singapore model

+ C405

L403 L401

C469 C468 C467 C466 C465

D412 K IC401

CK 25 1

R413 C415

Q404 Q406

2 S707

1 S706

R708 R707

R401 R402 R403 R404 R405 R424
BRN BLK SP201 (SPEAKER RCH)

L402 R750 X402 A R479

R439 R438

C490 A

A R432
R443 R441 R442 R440 C445 C446

24 R460

R409 R410 R416 R417

C402 R461 R433

R419 R420 C484 R421 C485 R422 L405

C411 C410 C409 C408

TP453 (RESET) 1

3 C406

R754 R446

X401 TP418 (AFC)

K A + C442 R435

R436 R496

TP445 (CD TEST 1) E CB

C470 R406 C471 R407

R411 R412 R418 R499 R492 R491 R490 R489 R408

R706 R705

C401 + 36

C474 C475

1 CN401 A

C489 R415 R414

C477 C478

D420 R454

R434 R445 5

CN701 S701

TUNE/SCAN TIME SET +

TP419 (REG) 5

MAIN BOARD CN301
S401 C488 CCN403 C483 C482 C481

(OPEN MAIN)

(Page 32)

C472 C473 R463

TP429 ALARM TRACK/STATION

C479 R709

R449 R448 R447

1-673-931-

1-673-932-

BLK BRN

SP101 (SPEAKER LCH)

TUNE/SCAN TIME SET

R715 ALARM MODE ALARM TIME
SCHEMATIC DIAGRAM LCD/KEY Boards See page 42 for Waveforms.
Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. % : indicates tolerance. C : panel designation. U : B+ Line. Power voltage is dc 6 V and fed with regulated dc power supply from external power voltage jack. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM [ ] : CD PLAY : Impossible to measure Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : FM Abbreviation CND : Canadian model JE : Tourist model SP : Singapore model

(Page 36)

Waveforms MAIN Board
1 IC3 ql (XIN) (Radio ON Mode) 500 mV/DIV, 5 s/DIV 6 IC502 tl (XOUT) (CD Play Mode) 1 V/DIV, 20 ns/DIV

LCD Board

1 IC(XT1/P74) 500 mV/DIV, 10 s/DIV
IC Block Diagrams MAIN Board IC1 CXA1111N
FILTER EARTH MUTE AFCW AM IF BAND TUNE FM IF AFCJ VCC DET

LA3335M

STLED M/ST GND

LA9251M-MPB

REFI VCC FSS LDD LDS BH1 PH1 LF2 FSC DRF TBC SLC DEF SLI

18 RIPPLE FILTER

10 DECODER

8 SYNC DET

7 LAMP TRIGGER

3.6 Vp-p

1.8 Vp-p

REGULATOR

2 Vp-p
BAND SIGNAL OUTPUT CIRCUIT FM.IF DISCRI

APC FIN2 FIN1 E F VCA

RF DET
SLC AM.IF DET.AGC STEREO SWITCH FF 90 FF 1/2 FF RF

I/V BAL VCA

13.3 s
2 IC(TE) (CD Play Mode) 200 mV/DIV, 5 ms/DIV

59.2 ns

7 IC(OSC) (CD Play Mode) 500 mV/DIV, 5 s/DIV

30.6 s

2 IC401 qs (CF2) 1 V/DIV, 100 ns/DIV

TUNING METER

TB 5 PHASE COMPALATE 1 IN 2 FILTER 3 VCC V.C.O VCO STOP TE 6 TE 7 TESI SCI TH TA TD 12 + TE

RF AMP

47 RF 46 GND 45 CLV 44 HFL TES TOFF TGL TJP

1 EARTH

2 DISCRI

3 AM OSC

5 FM OSC

7 FM RF

8 AM RF

10 FM IN

11 EARTH

12 MIX OUT

T. SERVO &T. LOGIC

Approx. 360 mVp-p

1.2 Vp-p

3.4 Vp-p

39 NC 38 LASER LATCH SPINDLE SERVO +

37 FSTA 36 EFBAL 35 SP8

PARALLEL DATA OUTPUT
3 IC501 wa (FE) (CD Play Mode) 200 mV/DIV, 20 ms/DIV
8 Q74 (Collector) (Radio ON Mode) 2 V/DIV, 200 ns/DIV

32.9 ns

LC72137M-TLM

TC74VHC595FT (EL)

SERIAL DATA INPUT SERIAL DATA OUTPUT

F. SERVO &F. LOGIC +

SLED SERVO + 34 TGRF 33 SLOF 27 28

SLEQ SLD

SP SPG

SP SPD

19 XIN

5.4 Vp-p

REFERENCE DIVIDER 12BITS PROGRAMMABLE DIVIDER PHASE DETECTOR CHARGE PUMP 18 AOUT 17 AIN 16 PD 15 VSS LATCH POWER ON RESET 14 VDD
4 IC501 ea (OSC) (CD Play Mode) 200 mV/DIV, 10 ms/DIV

B02 B03

DATA SHIFT REGISTER LATCH

386 ns

9 Q74 (Base), Q75 (Collector) (Radio ON Mode) 200 mV/DIV, 200 ns/DIV

I01 I02

UNLOCK DETECTOR

13 B04

600 mVp-p
1 SWALLOW COUNTER 1/16,1/17 4BITS

12 FMIN

UNIVERSAL COUNTER

670 mVp-p

11 AMIN

26.6 ms

5 IC501 rj (RF), IC502 qk (EFMI) (CD Play Mode) 500 mV/DIV, 500 ns/DIV

1-216-823-11 METAL CHIP 1-216-823-11 METAL CHIP < SWITCH >
S701 S702 S703 S704 S705 S706 S707 S708 S709 S710 S711
1-692-453-11 SWITCH, KEY BOARD (TUNE/SCAN TIME SET +, >) 1-692-453-11 SWITCH, KEY BOARD (SNOOZE, SLEEP OFF/LIGHT) 1-692-453-11 SWITCH, KEY BOARD (x OFF, ALARM RESET) 1-692-453-11 SWITCH, KEY BOARD (RADIO SLEEP) 1-692-453-11 SWITCH, KEY BOARD (CD u) 1-692-453-11 1-692-453-11 1-692-453-11 1-692-453-11 1-692-453-11 SWITCH, KEY BOARD (1) SWITCH, KEY BOARD (2) SWITCH, KEY BOARD (3) SWITCH, KEY BOARD (4) SWITCH, KEY BOARD (5)
L901 1-416-668-11 INDUCTOR 10uH ************************************************************** * A-3663-312-A KEY BOARD, COMPLETE ******************** < CONNECTOR > CN701 1-569-806-21 CONNECTOR, FPC 5P < RESISTOR > R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R711 R712 R713 1-216-827-11 1-216-832-11 1-216-835-11 1-216-839-11 1-216-827-11 1-216-832-11 1-216-835-11 1-216-839-11 1-216-827-11 1-216-832-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP 3.3K 8.2K 15K 33K 3.3K 8.2K 15K 33K 3.3K 8.2K 15K 33K 1.5K 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W
1-692-453-11 SWITCH, KEY BOARD (TUNE/SCAN TIME SET ,.) S712 1-692-453-11 SWITCH, KEY BOARD (ALARM TRACK/STATION) S713 1-692-453-11 SWITCH, KEY BOARD (ALARM TIME) S714 1-692-453-11 SWITCH, KEY BOARD (ALARM MODE) S715 1-692-453-11 SWITCH, KEY BOARD (BAND) ************************************************************** * * * A-3683-085-A LCD BOARD, COMPLETE (CD2000: US, CND) A-3683-087-A LCD BOARD, COMPLETE (CD2000: E, SP, JE) A-3683-103-A LCD BOARD, COMPLETE (CD2000S) ******************** 3-033-545-01 3-033-560-01 3-033-564-01 3-033-565-01 3-033-573-01 PLATE, LIGHT GUIDE HOLDER, LCD TERMINAL (LITHIUM +), BATTERY TERMINAL (LITHIUM ), BATTERY SHEET (LCD)
3-035-202-01 SHEET (LCD), INSULATING < CAPACITOR > C401 C402 C403 C405 C406 C407 C408 C409 1-135-177-21 1-162-970-11 1-104-848-11 1-110-569-11 1-164-489-11 TANTALUM CHIP CERAMIC CHIP TANTALUM CHIP TANTALUM CHIP CERAMIC CHIP 1uF 0.01uF 100uF 47uF 0.22uF 0.01uF 22PF 20PF 20% 10% 20% 20% 10% 10% 5% 5% 20V 25V 4V 6.3V 16V 25V 50V 50V
1-216-835-11 METAL CHIP 1-216-839-11 METAL CHIP 1-216-823-11 METAL CHIP
1-162-970-11 CERAMIC CHIP 1-162-919-11 CERAMIC CHIP 1-164-160-11 CERAMIC CHIP
Ref. No. C410 C411 C412 C413 C414 C415 C420 C421 C422 C426 C427 C428 C442 C443 C444 C445 C446 C447 C465 C466 C467 C468 C469 C470 C471 C472 C473 C474 C475 C476 C477 C478 C479 C480 C481 C482 C483 C484 C485 C486 C487 C488 C489 C490 C496 Part No. Description 10PF 10PF 27PF 27PF 0.1uF 0.01uF 0.1uF 0.01uF 0.01uF 0.001uF 0.001uF 0.001uF 1uF 22uF 100uF 0.01uF 0.01uF 220uF 0.001uF 0.001uF 100PF 100PF 100PF 22PF 47PF 0.001uF 0.01uF 0.001uF 0.001uF 0.001uF 0.01uF 0.01uF 0.001uF 0.001uF 0.001uF 100PF 0.001uF 100PF 0.01uF 0.01uF 0.01uF 0.01uF 0.5PF 0.5PF 5% 5% 10% 10% 10% 10% 10% 10% 10% 10% 20% 20% 20% 10% 10% 20% 10% 10% 5% 5% 5% 5% 5% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 5% 10% 5% 10% 10% 10% 10% 10% 20% 10% Remark 50V 50V 50V 50V 25V 25V 25V 25V 25V 50V 50V 50V 20V 4V 4V 25V 25V 10V 50V 50V 50V 50V 50V 50V 50V 50V 25V 50V 50V 50V 25V 25V 50V 50V 50V 50V 50V 50V 25V 25V 25V 25V 25V 4V 16V Ref. No. D407 D408 D409 D410 D411 D412 D413 D417 D419 D420 D421 D422 D450 D451 Part No. 8-719-056-07 8-719-056-07 8-719-941-86 8-719-056-76 8-719-988-61 8-719-975-40 8-719-988-61 8-719-976-96 8-719-976-96 8-719-975-40 8-719-988-61 8-719-988-61 8-719-988-61 8-719-988-61 Description Remark 1-162-915-11 CERAMIC CHIP 1-162-915-11 CERAMIC CHIP 1-162-920-11 1-162-920-11 1-164-004-11 1-162-970-11 1-164-004-11 1-162-970-11 1-162-970-11 1-162-964-11 1-162-964-11 1-162-964-11 1-135-177-21 1-104-847-11 1-104-848-11 1-162-970-11 1-162-970-11 1-126-934-11 1-162-964-11 1-162-964-11 1-162-927-11 1-162-927-11 1-162-927-11 1-162-919-11 1-162-923-11 1-162-964-11 1-162-970-11 1-162-964-11 1-162-964-11 1-162-964-11 1-162-970-11 1-162-970-11 1-162-964-11 1-162-964-11 1-162-964-11 1-162-927-11 1-162-964-11 1-162-927-11 1-162-970-11 1-162-970-11 1-162-970-11 1-162-970-11 CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTALUM CHIP TANTALUM CHIP TANTALUM CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP LED SLR-342MC3F (LCD BACK LIGHT) LED SLR-342MC3F (LCD BACK LIGHT) DIODE DAN202U DIODE UDZ-TE-17-3.6B DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE < IC > IC401 IC402 IC403 8-759-587-66 IC LC867124A-5M74 8-759-426-02 IC RH5RL34AA-T1 8-759-349-55 IC RH5VL25AA-T1 < COIL > L401 L402 L403 L404 L405 1-412-959-11 1-412-959-11 1-412-959-11 1-412-939-11 1-412-959-11 INDUCTOR INDUCTOR INDUCTOR INDUCTOR INDUCTOR 47uH 47uH 47uH 1uH 47uH 1SS355TE-17 RB411D 1SS355TE-17 DTZ4.7C DTZ4.7C RB411D 1SS355TE-17 1SS355TE-17 1SS355TE-17 1SS355TE-17

Remark 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/10W 1/16W 1/16W 1/16W 1/10W 1/16W 1/16W 1/16W 1/16W 1/16W
1-572-050-11 SWITCH, PUSH (1KEY) (OPEN MAIN) 1-692-453-11 SWITCH, KEYBOARD (WORLD/LOCAL) 1-692-453-11 SWITCH, KEYBOARD (D.S.T. SUMMER T.) < VIBRATOR >
X401 1-567-098-41 VIBRATOR, CRYSTAL (32.768kHz) X402 1-781-570-21 VIBRATOR, CERAMIC (3MHz) ************************************************************** * * * A-3683-084-A MAIN BOARD, COMPLETE (CD2000: US, CND) A-3683-086-A MAIN BOARD, COMPLETE (CD2000: E, SP, JE) A-3683-102-A MAIN BOARD, COMPLETE (CD2000S) ********************* 3-033-549-01 3-033-563-01 3-033-571-01 3-039-164-01 3-040-409-01 CHASSIS TERMINAL BOARD, ANTENNA TERMINAL (+ -), BATTERY SHEET (SHIELD B), INSULATING SHEET (CHASSIS), ELECTROSTATIC
1-216-853-11 METAL CHIP 1-216-821-11 METAL CHIP 1-216-833-11 RES, CHIP 1-216-833-11 RES, CHIP 1-216-833-11 RES, CHIP
1/16W 1/16W 1/16W (CD2000S) 10K 5% 1/16W (CD2000: E, SP, JE) 10K 5% 1/16W (CD2000: US, CND/CD2000S) 47K 47K 10K 1K 1K 1K 2.2K 10K 10K 0 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W (CD2000) 1/16W 1/16W
3-040-410-01 CUSHION (SHIELD B) 3-040-780-01 SHEET, ELECTROSTATIC < BAND PASS FILTER >
R460 R461 R463 R464 R465 R466 R467 R468 R469 R470
1-216-841-11 1-216-841-11 1-216-833-11 1-216-821-11 1-216-821-11
METAL CHIP METAL CHIP RES, CHIP METAL CHIP METAL CHIP

BPF1 BPF1

1-236-053-11 FILTER, BAND PASS (CD2000: US, CND/CD2000S) 1-236-069-21 FILTER, BAND PASS (CD2000: E, SP, JE) < CAPACITOR/RESISTOR >
1-216-821-11 METAL CHIP 1-216-825-11 METAL CHIP 1-216-833-11 RES, CHIP 1-216-833-11 RES, CHIP 1-216-864-11 METAL CHIP

C1 C2 C2

1-162-970-11 CERAMIC CHIP 1-216-864-11 METAL CHIP 1-162-970-11 CERAMIC CHIP

0.01uF 0 0.01uF

25V (CD2000S) 5% 1/16W (CD2000) 10% 25V (CD2000S)
Ref. No. C3 C4 Part No. Description 0.01uF 10% Remark 25V (CD2000S) 20% 4V (CD2000S) 0.5PF 50V (CD2000S) 10% 25V 5% 50V (CD2000S) 0.5PF 50V (CD2000S) 10% 25V 50V (CD2000S) 10% 25V 10% 25V 0.25PF 50V (CD2000) 0.5PF 50V (CD2000S) 10% 25V (CD2000) 5% 1/16W (CD2000S) 10% 25V (CD2000S) 20% 4V (CD2000S) 10% 25V (CD2000S) 25V (CD2000S) 10% 25V (CD2000S) 5% 1/16W (CD2000) 10% 25V (CD2000S) 5% 50V 10% 10% 25V 25V (CD2000S) 10% 25V (CD2000S) 0.25PF 50V 5% 50V (CD2000S) 10% 5% Ref. No. C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C56 C57 C14 C14 C15 C16 C17 1-164-227-11 CERAMIC CHIP 1-216-864-11 METAL CHIP 1-164-227-11 CERAMIC CHIP 0.022uF 0 0.022uF C59 C60 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C101 C102 C103 C104 C105 C106 C111 C112 C113 C114 Part No. Description 20% 20% 10% 5% 20% 10% 20% 10% 20% 10% 20% 5% 10% Remark 20V 6.3V 10V 50V 6.3V 16V 6.3V 25V 20V 25V 20V 25V 25V 1-162-970-11 CERAMIC CHIP 1-135-177-21 TANTALUM CHIP 1uF 1-135-259-11 TANTALUM CHIP 10uF 1-109-982-11 CERAMIC CHIP 1uF 1-164-230-11 1-135-259-11 1-165-176-11 1-110-569-11 1-162-970-11 1-135-177-21 1-162-970-11 1-135-177-21 1-115-416-11 1-164-004-11 CERAMIC CHIP TANTALUM CHIP CERAMIC CHIP TANTALUM CHIP CERAMIC CHIP TANTALUM CHIP CERAMIC CHIP TANTALUM CHIP CERAMIC CHIP CERAMIC CHIP 220PF 10uF 0.047uF 47uF 0.01uF 1uF 0.01uF 1uF 1000PF 0.1uF