cut close to connector

Fig.1-1-3 b) Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors.
Fig.1-1-4 c) Align the lengths of the wires to be connected. Insert the wires fully into the connector.

Metal sleeve

Connector
Fig.1-1-1 (7) Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.) (8) Check that replaced wires do not contact sharp edged or pointed parts. (9) When a power cord has been replaced, check that 10-15 kg of force in any direction will not loosen it.

Power cord

Fig.1-1-5 d) As shown in Fig.1-1-6, use the crimping tool to crimp the metal sleeve at the center position. Be sure to crimp fully to the complete closure of the tool.

1.2.0 5.5

Crimping tool
Fig.1-1-6 e) Check the four points noted in Fig.1-1-7.
Not easily pulled free Crimped at approx. center of metal sleeve
Fig.1-1-2 (10) Also check areas surrounding repaired locations. (11) Products using cathode ray tubes (CRTs)In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compliance with recognized codes pertaining to X-ray emission.
Conductors extended Wire insulation recessed more than 4 mm

Fig.1-1-7 (No.YD006)1-3

1.1.2 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. (1) Insulation resistance test Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.).See table 1 below. (2) Dielectric strength test Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See Fig.1-1-11 below. (3) Clearance distance When replacing primary circuit components, confirm specified clearance distance (d), (d') between soldered terminals, and between terminals and surrounding metallic parts. See Fig.1-1-11 below.
d d' Power cord primary wire
(4) Leakage current test Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). Measuring Method : (Power ON)Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig.1-1-9 and following Fig.1-1-12.

Externally exposed accessible part

Chassis

Fig.1-1-9 (5) Grounding (Class 1 model only) Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in, Video out, Audio in, Audio out or Fixing screw etc.).Measuring Method: Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See Fig.1-1-10 and grounding specifications.
AC inlet Earth pin MIlli ohm meter Grounding Specifications Region USA & Canada Europe & Australia Grounding Impedance ( Z ) Z Z 0.1 ohm 0.5 ohm Exposed accessible part

Fig.1-1-8

Fig.1-1-10
AC Line Voltage 100 V 100 to 240 V 110 to 130 V 110 to 130 V 200 to 240 V Region Japan USA & Canada Europe & Australia 1M R Insulation Resistance (R) R 1 M /500 V DC R 12 M /500 V DC Dielectric Strength AC 1 kV 1 minute AC 1.5 kV 1 minute AC 1 kV 1 minute AC 3 kV 1 minute (Class ) AC 1.5 kV 1 minute (Class ) Clearance Distance (d), (d') d, d' 3 mm d, d' 4 mm d, d' 3.2 mm d 4 mm d' 8 m m (Power cord) d' 6 m m (Primary wire)

10 M /500 V DC

Fig.1-1-11
AC Line Voltage 100 V 110 to 130 V 110 to 130 V 220 to 240 V Region Japan USA & Canada

0.15 1.5 2

Load Z
Leakage Current (i) i i i i i i 1 mA rms 0.5 mA rms 0.7 mA peak 2 mA dc 0.7 mA peak 2 mA dc
a, b, c Exposed accessible parts Exposed accessible parts Antenna earth terminals Other terminals

Europe & Australia

Fig.1-1-12 NOTE : These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

1-4 (No.YD006)

SECTION 2 SPECIFIC SERVICE INSTRUCTIONS
2.1 Service position This unit has been designed so that the Mechanism and Main board assemblies can be removed together from the bottom chassis. Before diagnosing or servicing the circuit boards, take out the major parts from the bottom chassis. 2.1.1 How to set the "Service position" (1) Refer to the disassembly procedure and perform the disassembly of the major parts before removing the Mechanism assembly. (2) Remove the screws that fix the Mechanism, Main board assembly to the bottom chassis. If any other screws are used to fix the boards, remove them also. (3) Remove the combined Mechanism, DVD unit, regulator, digital, junction and Main board assemblies. (4) If any other major parts are used, remove them also. (5) Connect the wires and connectors of the major parts that have been removed in steps (1) to (4). (Refer to Fig. 2-1a.) (6) Place the combined Mechanism, Main board and other board assemblies upside down. (7) Insert the power cord plug into the power outlet and then proceed with the diagnostics and servicing of the board assembly. Notes: Before inserting the power cord plug into the power outlet, make sure that none of the electrical parts are able to short-circuit between the workbench and the board assembly. For the disassembly procedure of the major parts and details of the precautions to be taken, see "Removing the major parts". If there are wire connections from the Main board and Mechanism assemblies to the other major parts, be sure to remove them (including wires connected to the major parts) first before performing step (2). When carrying out diagnosis and repair of the Main board assembly in the "Service position", be sure to ground both the Main board and Mechanism assemblies. If they are improperly grounded, there may be noise on the playback picture or FDP counter display may move even when the mechanism is kept in an inoperative status. In order to diagnose the playback or recording of the cassette tape, set the Mechanism assembly to the required mode before placing it upside down. If the mechanism mode is changed (including ejection) while it is in an upside down position the tape inside may be damaged. For some models, the mechanism and board assemblies are attached by connectors only. When carrying out a diagnosis or repair of the boards in the "Service position", make sure that the connectors are not disconnected.

(2) To clean the parts of the tape transport system other than the upper drum, use a piece of closely woven cloth or a cotton swab soaked with alcohol. (3) After cleaning, make sure that the cleaned parts are completely dry before using the cassette tape.

A/C head

Video heads
Fig.2-4a 2.4.2 Lubrication With no need for periodical lubrication, you have only to lubricate new parts after replacement. If any oil or grease on contact parts is soiled, wipe it off and newly lubricate the parts. Note: See the "mechanism assembly" diagram of the "parts list" for the lubricating or greasing spots, and for the types of oil or grease to be used. 2.4.3 Suggested servicing schedule for main components The following table indicates the suggested period for such service measures as cleaning, lubrication and replacement. In practice, the indicated periods will vary widely according to environmental and usage conditions. However, the indicated components should be inspected when a set is brought for service and the maintenance work performed if necessary. Also note that rubber parts may deform in time, even if the set is not used. System Parts name Drum assembly A/C head Tape transport Pinch roller arm assembly Full erase head Tension arm assembly Capstan motor (Shaft) Guide arm assembly Capstan motor Capstan brake assembly Main brake assembly Drive Belt (Capstan) Loading motor Clutch unit Worm gear Control plate Other Rotary encoder C : Cleaning X : Inspection or Replacement if necessary X Operation hours 1000H C,X C,X C C C C C 2000H X C,X C C C C C X X X X X X X X X

1-6 (No.YD006)

SECTION 3 DISASSEMBLY
3.1 Removing the major parts P= Spring, W= Washer, S= Screw, L= Locking tab, SD= Solder, CN**(WR**)= Remove the wire (WR**) from the connector (CN**). Note: The bracketed ( ) WR of the connector symbol are assigned nos. in priority order and do not correspond to those on the spare parts list. (5) Adjustment information for installation 3.1.3 Disassembly procedure
Step/ Part Name Loc No. [1] Top cover [2] Front panel assembly (Operation jack board assembly) (Switch display board assembly) Fig. Point No. 3-1d 6(S1a) 3-1a, 3(L2a),5(L2b) 3-1d CN3104(WR2a) CN3102(WR2b) CN7103(WR2c) [3] Mechanism assembly 3-1b, CN2001(WR3a) 3-1c, 3(S3a),(S3b) 3-1d CN(WR3b) (Drum assembly) (S3c),(S3d),(S3e) 2(L3a) (Cleaner assembly) [4] DVD unit 3-1d 4(S4a),4(S4b) (WR4a),(WR4b) (Bracket) [5] Digital board assembly 3-1d 4(S5a) CN7106(WR5a),CN7101 (CN1001),CN7109(CN1002) [6] Jack board assembly 3-1d (S6a),CN4104(CN1801) [7] Junction board assembly 3-1d (S7a),CN7104(WR7a), CN3103(WR7b),CN2601 (WR7c),CN7107(WR7d), CN5304(WR7e) [8] Regulator board assembly 3-1d 4(S8a) CN5301(WR8a), CN5302(WR8b) [9] Rear cover 3-1d 2(S9a),5(S9b),2(S9c),3(L9a) [10] Main board assembly 3-1d 3(S10a) Note <Note2a> <Note2b>

(1) Order of steps in Procedure When reassembling, perform the step(s) in the reverse order. These numbers are also used as the identification (location) No. of parts Figures. (2) Part name to be removed or installed. (3) Fig. No. showing procedure or part location. (4) Identification of part to be removed, unhooked, unlocked, released, unplugged, unclamped or unsoldered.

Door opener

Side frame(R)

Switch knob

Switch lever

Fig.3-1a (No.YD006)1-7

<Note 3a> When reattaching the Mechanism assembly, secure the screws (S3a to S3b) in the order of 1,2,3. <Note 3b> When reattaching the Mechanism assembly, be sure to align the phase of the Rotary encoder on the Main board assembly. When reattaching the Mechanism assembly, set the Mechanism assembling mode. [See MECHANISM ASSEMBLY SERVICE MANUAL (No. 86700).] When reattaching the Mechanism assembly to the Main board assembly, take care not to damage the sensors and switch on the Main board assembly. <Note 3c> When reattaching the Drum assembly, secure the screws (S3c to S3e) in the order of c, d, e.
(S3d) Mechanism assembly (S3c) (S3e) (S3d) (S3e)
Drum assembly <Note 3c>
<NOTE> Attach the Drum assembly appropriately, since the installation state of the Drum assembly influences the FM WAVEFORM LINEARITY greatly.
Fig.3-1b When handling the drum assembly alone, hold it by the motor or shaft. Be careful not to touch other parts, especially the video heads. Also take care not to damage the connectors.

Shaft Motor Video heads

Fig.3-1c

1-8 (No.YD006)

NOTE 1.Insert direction of FCC WIRE as follows.
right side electrode side back side supporting side

[4]DVD unit [1]Top cover

(S1a) (S1a)
2.FFC WIRE and DRUM FPC WIRE should be insert as follows.

CN CN CN

[4]Bracket
3.Insert the wire to even the root of connector completely at the same time as inserting each wire. 4.Check to see that outside parts.TOP COVER,BOTTOM COVER, FRONT PANEL, etc are fixed certainly to the BOTTOM CHASSIS with SCRWES. 5.Pay attention NOT to make any scratches on FRONT PANEL. 6.Pay close attention not to cut any Sheath of WIRE by sharp edge of CHASSIS while Wireing Process.

(S4a) (S1a)

[3]Drum assembly
(S4b) (S9b) (S9b) (S9b) (S9a)

[3]Cleaner assembly

[3]Mechanism assembly

[9]Rear cover

(S3c) (S3e) (S3d) (S10a)

(S10a)

[10]Main board assembly

JS3001

[5]Digital board assembly

[6]Jack board assembly

(S6a) (S8a)

CN 50 01

<Phase alignment>. Accord the position of V gap on R.ENCORDER and PWB silk. Accord the position of Boss on R.ENCORDER and PWB silk

(S10a) (S7a)

e e' c

e' e e e d

[8]Regulator board assembly [7]Junction board assembly

(L2a) (L2a) (L2a)

Cassette door <Note2b>

c e e d d k e b b

[2]Front panel assembly

JACK BOARD ASSY

FW7504 CN8501 CN5302 CN7111 CN5301

(WR8b)

CN5001

MAIN BOARD ASSY

(WR3b) <Note2a>

CN5311

(WR2a) <Note2a>

BOTTOM SIDE

(WR2b) <Note2a>

(WR2c) <Note2a>

OPERATION JACK BOARD ASSY

CN7001

SWITCH DISPLAY BOARD ASSY

CN2001

(WR4b) <Note2a> (WR8a) <Note2a> CN5304 (WR7e)

CN7107 CN5501 JUNCTION

(WR7d) <Note2a>

REGULATOR BOARD ASSY

CN3106

BOARD ASSY

(WR5a) <Note2a>

CN7106

CN7002
NOTE)Pass slit PCB through wire.

CN3104

NOTE) INSERT FFC WIRE TO THE CONNECTOR BEFORE ATTACHING TO FRONT PANEL.
Operation jack assembly CN7201 Switch display assembly CN7001 Switch display assembly CN7002

CN7201

A/C HEAD

(WR7c) <Note2a>

DVD UNIT

CN2201

CN2601

CN8001

(WR3a) <Note2a>
NOTE)Push the slack of the wire into the FW7001 side.

CN1404

CN3103

CN7102

(WR4a) <Note2a>

TOP SIDE

(WR7b) <Note2a> CN3102

(WR7a) <Note2a>

CN7103

CN7104

DIGITAL BOARD ASSY

Fig.3-1d (No.YD006)1-9

SECTION 4 ADJUSTMENT
4.1 Before adjustment 4.1.1 Precaution The adjustments of this unit include the mechanism compatibility and electrical adjustments. During the performance of this work, be sure to observe the precautions for each type of adjustment. If there is a reference to a signal input method in the signal column of the adjustment chart, Ext. S-input means the Y/C separated video signal and Ext. input means the composite video signal input. Unless otherwise specified, all measuring points and adjustment parts are located on the Main board. 4.1.2 Required test equipments Color (colour) television or monitor Oscilloscope: wide-band, dual-trace, triggered delayed sweep Signal generator: RF / IF sweep / marker Signal generator: stairstep, color (colour) bar [NTSC] Recording tape Digit-key remote controller(provided) 4.1.3 Required adjustment tools : Used --- : Not used
Mechanism compatibility adjustment Roller driver Jig RCU Back tension cassette gauge Alignment tape(MHP) Alignment tape(MHP-L)
Roller driver PTU94002 Jig RCU PTU94023B
Back tension cassette gauge PUJ48076-2
4.1.5 Switch settings When adjusting this unit, set the VCR mode and switches as described below. When using the Jig RCU, it is required to set the VCR to the Jig RCU mode (the mode in which codes from the Jig RCU can be received). (See "section 2 SPECIFIC SERVICE INSTRUCTIONS".)
Jig RCU [Data transmitting method] Depress the " "( 3 ) button after the data code is set.
INITIAL MODE CUSTOM CODE 43: A CODE DATA CODE
Fig.4-1 Jig RCU [PTU94023B] Set the switches as shown below unless otherwise specified on the relevant adjustment chart. The switches that are not listed below can be set as desired. If the VCR is not equipped with the functions detailed below, setup is not required.
AUTO PICTURE/VIDEO CALIBRATION/ B.E.S.T./D.S.P.C. PICTURE CONTROL/SMART PICTURE VIDEO STABILIZER TBC Digital 3R VIDEO NAVIGATION/TAPE MANAGER BLUE BACK OFF NORMAL/NATURAL OFF ON ON OFF OFF

Electrical adjustment

---------
4.1.6 Manual tracking mode (Auto tracking ON/OFF) setting (1) In order to set to the manual tracking mode during tape playback, press the SP/EP(LP)button on the remote control unit. Each press of the button switches the auto tracking ON or OFF. When the manual tracking mode is set, the tracking is placed at the center position. (2) Press channel +/- to adjust the tracking manually. 4.1.7 EVR Adjustment Some of the electrical adjustments require the adjustment performed by the EVR system. The main unit have EEPROMs for storing the EVR adjustment data and user setups. Notes: In the EVR adjustment mode, the value is varied with the channel buttons (+, -). The adjusted data is stored when the setting mode changes (from PB to STOP, when the tape speed is changed, etc.). Take care to identify the current mode of each adjustment item when making an adjustment. When changing the address setting in the EVR adjustment mode, use the Jig RCU or the remote controller having numeric keypad with which a numeric code can be directly input. The remote control code of the Jig RCU corresponds to each of the digit keys on the remote controller as follows.

Signal Mode Equipment EVR mode EVR address

Switching point

Stairstep signal Alignment tape(EP,stairstep,NTSC) [MHP-L] PB Oscilloscope VIDEO OUT terminal (75 ohm terminated) TP106 (PB. FM) TP111 (D.FF) Jig RCU: Code 5A 6.5 0.5H Jig RCU [PTU94023B]
(A1) (A2) Mode (B) Equipment (C) Measuring point (D) External trigger Adjustment part Specified value Adjustment tool (E) (F) (G) (H)

EE COMPONENT Y level

(A) (B) (C) (F1) (F2) (F3) (F4) (F5) Internal color bar EE Oscilloscope COMPONENT Y terminal Jig code 95 "ADJUST01 : **" Jig code 21 Jig code 18 or 19 (Channel +/-) Jig code 3C
(1) Play back the signal (A1) of the alignment tape (A2). (2) Apply the external trigger signal to D.FF (E) to observe the VIDEO OUT waveform and V.PB FM waveform at the measuring points (D1) and (D2). (3) Set the VCR to the manual tracking mode. (4) Adjust tracking so that the V.PB FM waveform becomes maximum. (5) Set the VCR to the Auto adjust mode by transmitting the code (F) from the Jig RCU. When the VCR enters the stop mode, the adjustment is completed. (6) If the VCR enters the eject mode, repeat steps (1) to (5) again. (7) Play back the alignment tape (A2) again, confirm that the switching point is the specified value (G).
Trigger point Switching point V.sync

Measuring point (D)

Specified value (G) Adjustment tool (H)
1.00 0.02 Vp-p (terminated) Jig RCU [PTU94023B]
(1) Observe the Y OUT waveform at the measuring point (D). (2) Set the VCR to the EVR mode by transmitting the code (F1) from the Jig RCU. (3) Set the EVR address to (F2) by transmitting the code (F3) from the Jig RCU. (4) Transmit the code (F4) from the Jig RCU to adjust so that the Y level of the Y OUT waveform becomes the specified value (G). (5) Release the EVR mode of the VCR by transmitting the code (F5) from the Jig RCU again. (When the EVR mode is released, the adjusted data is memorized.)

V. rate

Fig.4-3a Switching point 4.3.1.2
Signal Mode Measuring point Adjustment part Specified value Adjustment tool

Slow tracking preset

(A1) (A2) (B1) (B2) (D) (F) (G) (H) Ext. input Color (colour) bar signal [NTSC] VHS SP VHS EP TV-Monitor Jig RCU: Code 71or 72 minimum noise Jig RCU [PTU94023B]

Y level

Fig.4-3b EE componet Y level

(No.YD006)1-13

4.3.2.2

Signal Mode

1. The mechanism is locked in the middle of the mode transition during a tape loading operation. 2. The mechanism overruns during the tape loading operation because the SYSCON cannot recognize the mechanism mode normally. This problem is due to a cause such as a rotary encoder failure. 3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.)

E02: Unloading EMG

1. The mechanism is locked in the middle of mode transition. 2. Without an eject signal being sent from the SYSCON, unloading is attempted (i.e. Ejection is attempted while the tape is still inside the mechanism.) because the SYSCON cannot recognize the mechanism mode normally. This is due to a cause such as a rotary encoder failure. (Mechanism position: UPPER) 3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.) 1. The take-up reel pulse is not generated in the FWD transport modes (PLAY/FWD SEARCH/FF, etc.) because; 1) The idler gear is not meshed with the take-up reel gear because the mechanism mal-functions for some reason. 2) The idler gear is meshed with the take-up reel gear, but incapable of winding due to too large mechanical load (abnormal tension); 3) The reel is rotating normally but an FG pulse is not generated due to the take-up reel sensor failure. 2. The supply reel pulse is not generated in the REV transport modes (REV SEARCH/REW, etc.) because; 1) The idler gear is not meshed with the supply reel gear because the mechanism mal-functions for some reason. 2) The idler gear is meshed with the supply reel gear, but incapable of winding due to too large a mechanical load (abnormal tension); 3) The reel rotates normally but the FG pulse is not generated due to a supply reel sensor failure. 3. Power(SW5V) is not supplied to the reel sensor on the tape winding side. 1. The drum could not start or the drum rotation has stopped due to too large a load on the tape, because; 1) The tape tension is abnormally high; 2) The tape is damaged or a foreign object (grease, etc.) adheres to the tape. 2. The drum FG pulse did not reach the System controller CPU because; 1) The signal circuit is disconnected in the middle; 2) The FG pulse generator (hall device) of the drum is faulty. 3. The drum control voltage (DRUM CTL V) is not supplied to the MDA. 4. Power (M12V) is not supplied to the drum MDA. 1. The cassette cannot be ejected due to a failure in the drive mechanism of the housing. 2. When the housing load increases during ejection, the loading motor is stopped because of lack of headroom in its drive torque. Housing load increasing factors: Temperature environment (low temperature, etc.), mechanism wear or failure. 3. The sensor/switch for detecting the end of ejection are not functioning normally. 4. The loading motor drive voltage is lower than specified or power (M12V) is not supplied to the motor (MDA). 5. When the user attempted to eject a cassette, a foreign object (or perhaps the user's hand) was caught in the opening of the housing. 1. The capstan could not start or the capstan rotation has stopped due to too large a load on the tape, because; 1) The tape tension is abnormally high (mechanical lock); 2) The tape is damaged or a foreign object (grease, etc.) is adhered to the tape (occurrence of tape entangling, etc.). 2. The capstan FG pulse did not reach the System controller CPU because; 1) The signal circuit is disconnected in the middle; 2) The FG pulse generator (MR device) of the capstans is faulty. 3. The capstan control voltage (CAPSTAN CTL V) is not supplied to the MDA. 4. Power (M12V, SW5V) are not supplied to the capstan MDA. 1. The SW 5 V power supply circuit is shorted with GND. 2. The SW 12 V power supply circuit is shorted with GND. 1. The DVD unit is defective. 2. Contact failure of the wires in the DVD unit or VHS side. 1. 2. 3. 4. 5. 6. 7. 8. 9. The FG sensor is defective. (The soldered parts have separated.) The pull-up resistor at the FG sensor output is defective. (The soldered parts have separated.) Contact failure or soldering failure of the pins of the connector (board-to-board) to the FG sensor. The power (5V) to the sensor is not supplied. (Connection failure/soldering failure) The FG pulse is not sent to the System Controller CPU. The tilt motor is defective. (The soldered parts have separated.) The drive power to the tilt motor is not supplied. (Connection failure/soldering failure) The tilt motor drive MDA - IC is defective. Auto-recovery of the DD tilting cannot take place due to overrun.

1. The supply reel pulse is not generated in the FWD transport mode (PLAY/FWD SEARCH/FF, etc.) because; 1) PLAY/FWD or SEARCH/FF is started while the tape in the inserted cassette is cut in the middle; 2) A mechanical factor caused tape slack inside and outside the supply reel side of the cassette shell. In this case, the supply reel will not rotate until the tape slack is removed by the FWD transport, so the pulse is not generated until then; 3) The reel is rotating normally but the FG pulse is not generated due to a supply reel sensor failure. 2. The take-up reel pulse is not generated in the REV transport mode (REV SEARCH/REW, etc.). 1) REV SEARCH/REW is started when the tape in the inserted cassette has been cut in the middle; 2) A mechanical factor caused tape slack inside and outside the take-up reel side of the cassette shell. In this case, the take up will not rotate until the tape slack is removed by the REV transport, so the pulse will not be generated until that time; 3) The reel is rotating normally but the FG pulse is not generated due to a take-up reel sensor failure. 3. The power (SW 5V) to a reel sensor is not supplied.
EU1: Head clog warning history
Presupposing the presence of the control pulse output in the PLAY mode, when the value obtained by mixing the two V.FM output channels (without regard to the A.FM output) has remained below a certain threshold level for more than 10 seconds, [E:U1] is identified and recorded in the emergency history. During the period in which the head clog is detected, the FDP shows "U:01" and the OSD repeats the "3 seconds of warning display" and the "7 seconds of noise picture display" alternately. EMG code : "E:C1" or "E:U1" / FDP : "U:01" / OSD : "Try cleaning tape." or "Use cleaning cassette." The head clog warning is reset when the above-mentioned threshold has been exceeded for more than 2 seconds or the mode is changed to another mode than PLAY.

1-18 (No.YD006)

5.3.5 EMG detail information <1> The status (electrical operation mode) of the VCR and the status (mechanism operation mode/sensor information) of the mechanism in the latest EMG can be confirmed based on the figure in EMG detail information <1>. [FDP/OSD display] *1 : *2 : 34 *1 : Deck operation mode at the moment of EMG *2 : Mechanism operation mode at the moment of EMG 3- : Mechanism sensor information at the moment of EMG -4 : Mechanism mode position at the moment of EMG Note: For EMG detailed information <1>, the content of the code that is shown on the display (or OSD) differs depending on the parts number of the system control microprocessor (IC3001) of the VCR. The system control microprocessor parts number starts with two letters, refer these to the corresponding table. *1 : Deck operation mode

[Common table of MN* and HD]
Display MN* 04 0C 24 2C 44 4C 6C 8C 8D 8E AC AD CC CD EC ED HD* 04 0E 26 2E 4C 6E 8F AF CD EF Deck operation mode Mechanism being initialized STOP with pinch roller pressure off (or tape present with P.OFF) STOP with pinch roller pressure on POWER OFF as a result of EMG PLAY (Normal playback) REC Cassette ejected FF Tape fully loaded, START sensor ON, short FF Cassette identification FWD SEARCH before transition to FF (SPx7-speed) FWD SEARCH (variable speed) including x2-speed INSERT REC REW Cassette identification REV SEARCH before transition to REW (SPx7-speed) REV SEARCH (variable speed) AUDIO DUB INSERT REC (VIDEO + AUDIO) FWD STILL / SLOW REV STILL / SLOW REC PAUSE Back spacing Forward spacing (FWD transport mode with BEST function) INSERT REC PAUSE INSERT REC back spacing AUDIO DUB PAUSE AUDIO DUB back spacing INSERT REC (VIDEO + AUDIO) PAUSE INSERT REC (VIDEO + AUDIO) back spacing
*2 : Mechanism operation mode

[Table of MN*]

Display 0A 0B 0C 0D 0E 0F Mechanism operation mode Command standby (No command to be executed) Immediate Power OFF after EMG occurrence Loading from an intermediate position during mechanism initialization Unloading due to EMG occurrence during mechanism initialization Ejecting cassette (ULSTOP to EJECT) Inserting cassette (EJECT to ULSTOP) Loading tape (ULSTOP to PLAY) Unloading tape (PLAY to ULSTOP) Transition from pinch roller ON to STOP Transition from pinch roller OFF to STOP (PLAY to OFFSTOP) Transition from pinch roller OFF to STOP at power OFF Transition from pinch roller ON to STOP at power ON Transition to PLAY Transition to Search FF Transition to REC Transition to FWD STILL/SLOW Transition to REV STILL/SLOW Transition to Search REV Transition from FF/REW to STOP Transition to FF Transition to REW Tape end detection processing during loading Short FWD/REV at tape sensor ON during unloading Transition to FF/REW brake mode

[Table of HD*]

Display 05 0E 26 2E 4C 6E 8F AF C7 CD EF F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF Mechanism operation mode STOP with pinch roller pressure off STOP with pinch roller pressure on U/L STOP (or tape being loaded) PLAY (Normal playback) PLAY (x1-speed playback using JOG) REC Cassette ejected FF FWD SEARCH (variable speed) including x2-speed INSERT REC REW REV SEARCH AUDIO DUB INSERT REC (VIDEO + AUDIO) FWD STILL/SLOW REV STILL/SLOW REC PAUSE INSERT REC PAUSE REV SEARCH (x1-speed reverse playback using JOG) AUDIO DUB PAUSE INSERT REC (VIDEO + AUDIO) PAUSE Mechanism being initialized POWER OFF as a result of EMG Cassette being inserted Cassette being ejected Transition from STOP with pinch roller pressure on to STOP with pinch roller pressure off Transition from STOP with pinch roller pressure on to PLAY Transition from STOP with pinch roller pressure on to REC Cassette type detection SEARCH before FF/REW is being executed Tape being unloaded Transition from STOP with pinch roller pressure off to STOP with pinch roller pressure on Transition from STOP with pinch roller pressure off to FF/REW Transition from STOP with pinch roller pressure off to REC.P (T.REC,etc.) Transition from STOP with pinch roller pressure off to cassette type detection SEARCH Short REV being executed after END sensor on during unloading Tension loosening being executed after tape loading (STOP with pinch roller pressure on) Tape being unloaded

Even number (0, 2, 4, 6, 8, A, C, E)
Odd number (1, 3, 5, 7, 9, B, D, F)
-0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F -0 -1 -2 -3 -4 -5
Not established EJECT EJECT position EJECT-EJECT1 Intermodal position EJECT1 EJECT1 position EJECT1-EJECT2 Intermodal position EJECT2 EJECT2 position EJECT2-ULSTOP Intermodal position ULSTOP ULSTOP position ULSTOP-UPPER Intermodal position UPPER Loading (unloading) tape UPPER-ONSTOP Intermodal position ONSTOP PLAY position PLAY-FWD/SS Intermodal position FWD/SS FWD (FWD Still/Slow) position FWD/SS-REV Intermodal position REV REV (REV Still/Slow) position REV-OFFSTOP Intermodal position OFFSTOP Pinch roller OFF position OFFSTOP-FFREWB Intermodal position FFREWB FF/REW Brake position FFREWB-FFREW Intermodal position FFREW FF/REW position
5.3.6 EMG detail information <2> The type of the cassette tape and the cassette tape winding position can be confirmed based on the figure in EMG detail information <2>. Note: EMG detail information <2> is the reference information stored using the remaining tape detection function of the cassette tape. As a result, it may not identify cassette correctly when a special cassette tape is used or when the tape has variable thickness.
Note: The values of cassette tape type <2> in the above table are typical values with representative cassette tapes. 5.3.7 EMG detail information <3> Three deck operation modes preceding the deck operation mode in which the EMG occurs may be confirmed based on the figures in the EMG information detail <3>. For the contents of the displayed information, see the table "Deck operation mode" in section "5.3.5 EMG detail information <1>".

1-20 (No.YD006)

Display function of DVD section
5.4.1 Displaying SYSTEM INFO SYSTEM INFO contains information on firmware version of the unit and the mechanism drive, and an initialize execution menu. (1) Set the unit to the Jig RCU mode. (2) Transmit "8b" from the JIG RCU. (3) SYSTEM INFORMATION menu is displayed in the screen. (4) To move cursor in SYSTEM INFO, use the " ", " ", " ", and " " buttons of a remote control unit attached to product. (5) To quit the SYSTEM INFO menu, transmit "8b" from the JIG RCU. (6) Cancel JIG RCU mode.
SYSTEM INFO VERSION INITIALIZE INFORMATION
CPRM Key Downl oad C-Ware / A-Ware JVRI / Host 1394 / OSD Anal og / BE-R / FE-R

SET UP

PROD101 / JVC03_44-2
0081-2 / V0128-2J 0053 / MTEN/ 2 / 2
Version of firmware this part is updated sfter the firmware of the unit is upgraded. System controller version/ Region code (back end)/ Region code (front end)

ENTER SELECT

SELECT WITH [CURSORS] THEN PRESS [ENTER]
SYSTEM I NFO VERSION INITIALIZE INFORMATION
Si l i co n ve rsi o n o f E5 BSP Dri ve f i rm wa re ve rsi o n Dri ve l a st e rro r

1B0 1.2/010 P00 00

Drive firmware version
NOTE: Items other than the ones described above are not used in service work. 5.4.2 Upgrading firmware of the unit Firmware upgrade disk supports only DVD-RAM media When firmware needs to be upgraded, Digital Video Storage CSG will distribute a firmware upgrade disk. (1) Set the unit to the Jig RCU mode. (2) Set the unit to DVD mode.(DVD lamp lights up) (3) Transmit "70" from the JIG RCU. (4) "UPDATE" appears in FDP, load the upgrade disk on the disk tray then close the disk tray. (5) Wait for approx.30 seconds while FDP is displayed as "UPDATE." (6) Then, "FW UPDATE" appears in FDP. It takes approx. 3 minutes at maximum to upgrade firmware. (7) The tray is ejected. Then, take out the disk and close the tray. (8) The tray is ejected. Then, take out the disk and close the tray.Turn off the unit, and unplug the AC power cord from the AC outlet. Then plug the AC power cord into the AC outlet. (9) "LOADING" of FDP disappears. then, turn on the unit. (10) Display the SYSTEM INFO menu, and check the version of the firmware. (11) Cancel the JIG RCU mode ATTENTION : Firmware may sometimes not be upgraded successfully. If firmware is not upgraded successfully, the tray opens, and "ERROR" appears in FDP. If firmware is upgraded successfully, the tray opens, and "OPEN" appears in FDP. If unplug the AC power cord from the AC outlet while "ERROR" appears, data in the flash memory is destroyed and the unit cannot start: the flash memory needs to be replaced. After upgrading procedure, pay enough attention to FDP when the tray opens. When "ERROR" appears, upgrade firmware again in the following way to restore the firmware (1) Transmit "70" from theJIG RCU while the tray opens. (2) When "UPDATE" appears in FDP, close the tray and make the unit read the disk. Upgrading starts. (3) After (2), perform upgrading procedure (4) - (10) of 5.4.2 Upgrading firmware of the unit above.

(No.YD006)1-21

5.4.3 The exchange method of a tray fitting When DVD unit is exchanged, please transplant a tray fitting from an old drive, or change for a new tray fitting. 5.4.4 Initialization method Since the information on internal is as follows if it initializes, before enforcement, it is required to surely obtain the approval of a customer. All initial setting of DVD returns to an initial state. (1) Set the unit to theJIG RCU mode. (2) Set the unit to DVD mode.(DVD lamp lights up) (3) Press the "POWER" button on the unit to turn off the unit. (4) Transmit "6F" from the JIG RCU. (5) Confirm the FDP changes from "FACTORY" to "CHECK OK". (6) Press the "VCR/DVD" buttojn on the unit so that the VCR lamp lights up on the unit. (7) To cancel JIG RCU mode transmit "9D" from the JIG RCU. 5.4.5 The setting method of a region code A region code should be set after a DVD unit is replaced. While a DVD unit is in a warehouse as a stock, a region code of the DVD unit is not determined. Only replacement of a DVD unit may cause abnormal playback of Disc. Set a region code of a DVD unit in the following procedure. (1) Replace a DVD unit. (2) Set the unit to JIG RCU mode. (3) nsert a DVD-RAM disc in the unit to make the unit read the DVD-RAM disc.(The DVD-RAM disk used in this procedure is not a disk for upgrade. If it is a DVD-RAM disk, it is good anything.) (4) Transmit "F2" from the JIG RCU. (5) "REGION 1" is displayed on FDP. (6) Set the unit to STANDBY mode. (7) Turn the POWER switch ON. (8) To cancel JIG RCU mode transmit "9D" from the JIG RCU. (9) Colon is displayed on a clock on FL display. (10) Setting is completed in the procedure above.

REVISED

YB-SB-00005-5

SUBJECT:

TO IMPROVE PICTURE AND SOUND NOISE
Performed at factory Priority ( ) ( ) ( ) ( ) (!) ( )

MARCH, 2005

Model & Manual No.

Shown below

Reference Information
S. All Products. A. Items in JVC/Dealer stock/Service return goods. B. JVC stock/Units returned for service. C. Sold items returned for service. D. Only Units related to this bulletin. E. Others.
Revise one of the wire position of page 7/9 due to miss print of -4
<Models> DR-M10SUS DR-MV1SUS DR-MH20SUS DR-MH30SUS DR-MX1SUS SR-MV30US SR-MV50US DR-M10SUC DR-MV1SUC DR-MH20SUC DR-MH30SUC DR-M10SUJ DR-MV1SUJ DR-MH20SUJ DR-MH30SUJ : : : : : : : : : : : : : : No. XA019 No. YD006 No. YD026 No. YD026 No. YD041 No. YD012 No. YD045 No. XA019 No. YD006 No. YD026 No. YD026 No. XA019 No. YD022 No. YD026 No. YD026 DR-M10BE DR-MH20SE DR-MH30SE DR-M10SEU DR-MV1SEU DR-MV1BEU DR-M10SEK DR-M10BEK DR-MV1SEK DR-MV1BEK DR-MH20SEK DR-MH30SEK DR-M10SER DR-MH30SER DR-M10SEF DR-MV1SEF DR-MH20SEF DR-MH30SEF : : : : : : : : : : : : : : : : : : No. XA020 No. YD027 No. YD027 No. XA020 No. YD014 No. YD014 No. XA020 No. XA020 No. YD014 No. YD014 No. YD027 No. YD027 No. XA020 No. YD027 No. XA020 No. YD014 No. YD027 No. YD027 DR-M10SAA : DR-M10SAA2 : DR-MV1SAA : DR-MH30SAA : DR-M10SAG : DR-MH30SAG : DR-MV1SAS : DR-M10SAX : DR-MH30SAX : DR-M10STW : DR-MH30STW : No. YD025 No. YD025B No. YD036 No. YD044 No. YD025 No. YD044 No. YD036 No. YD025 No. YD044 No. YD046 No. YD026
ATTACHMENT ( ) NONE ( ) SCHEMATIC DIAGRAM
) EXPLODED VIEW ) COMPONENT/PWB LAYOUT
( ) ADJUSTMENT PROCEDURE ( ! ) SEE NEXT PAGE
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY, GLOBAL QUALITY MANAGEMENT DEPARTMENT, CUSTOMER SATISFACTION CENTER [13000] 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa, 221-8528, Japan TEL:+81-45-450-2552 FAX:+81-45-450-2558
<Symptom> After make the power on mode for a while, the green or white noise and sound noise occurs and then become the loading sutiation.
<Cause> The clock of some type of IC1401 (DIGITAL BOARD ASSY) is unstable.
<Service measure> 1. Countermeasure for DR-M10, DR-MV1 Check the the DIGITAL BOARD ASSY No. Then select the relevant coumtermesure from the below table according to the DIGITAL BOARD ASSY No. Then do the relevant cuontermesure as shown below.
MODELS DR-M10SUS DR-M10SUC DR-M10SUJ DR-M10BE DR-M10SEU DR-M10SEK DR-M10BEK DR-M10SEF DIGITAL BOARD ASSY No. LPA10236-01A, B, C LPA10236-01D LPA10236-01E ~ LPA10236-03A, B, C LPA10236-03D LPA10236-03E COUNTERMESURE IN SERVICE A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT A B NEED NOT CARRIED OUT COUNTERMESURE IN FACTRORY FOR VIDEO CLOCK FOR AUDIO CLOCK NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH
DR-MV1SUS LPA10236-05A, B, C, D DR-MV1SUC DR-MV1SUJ LPA10236-05E, F SR-MV30US LPA10236-05G ~ DR-MV1SEU LPA10236-06A, B DR-MV1BEU DR-MV1SEK LPA10236-06C DR-MV1BEK DR-MV1SEF LPA10236-06D~ DR-M10SAA LPA10236-07A LPA10236-07B LPA10236-07C ~ DR-M10SAA2 LPA10236-11A LPA10236-11B LPA10236-11C ~ DR-M10SER LPA10236-08A LPA10236-08B LPA10236-08C ~ DR-M10SAG LPA10236-10A LPA10236-10B LPA10236-10C ~ DR-M10SAX LPA10236-12A LPA10236-12B LPA10236-12C ~ DR-M10STW LPA10236-13A, B, C LPA10236-13D LPA10236-13E ~ DR-MV1SAA LPA10236-17A LPA10236-17B, C LPA10236-17D ~ DR-MV1SAS LPA10236-20A LPA10236-20B LPA10236-20C ~ SR-MV50US LPA10236-21A LPA10236-21B LPA10236-21C ~

NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH
NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH
A) Add a SUB PWB ASSY (YB20820F1) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)

ASSY No.

#500 SPACER R1478

YB20820F

#500 SPACER
B) Add a SUB PWB ASSY (YB20820F1) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)
REMOVE THE WIRE AT THIS POINT.
2. Countermeasure for DR-MH20, DR-MH30, DR-MX1 Check the the DIGITAL BOARD ASSY No. Then select the relevant coumtermesure from the below table according to the the DIGITAL BOARD ASSY No. Then do the relevant cuontermesure as shown below.
MODELS DR-MH20SUS DR-MH30SUS DR-MH20SUC DR-MH30SUC DR-MH20SUJ DR-MH30SUJ DR-MH30STW DR-MH20SE DR-MH30SE DR-MH20SEK DR-MH30SEK DR-MH30SER DR-MH20SEF DR-MH30SEF DR-MH30SAA DR-MH30SAG DR-MH30SAX DIGITAL BOARD ASSY No. LPA10247-01A, B, C LPA10247-01D LPA10247-01E LPA10247-01F ~ LPA10247-03A, B, C, D COUNTERMESURE IN SERVICE A B C NEED NOT A CARRIED OUT COUNTERMESURE IN FACTRORY FOR VIDEO CLOCK FOR AUDIO CLOCK NOT COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH COMPLIED WITH NOT COMPLIED WITH COMPLIED WITH

NOT COMPLIED WITH NOT COMPLIED WITH

LPA10247-03E

LPA10247-03F

COMPLIED WITH

NOT COMPLIED WITH

LPA10247-03G ~

NEED NOT

DR-MX1SUS

LPA10247-05A, B, C LPA10247-05D ~

C NEED NOT

COMPLIED WITH COMPLIED WITH
NOT COMPLIED WITH COMPLIED WITH
A) Add a SUB PWB ASSY (LPA20044-001A) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)

LPA20044 -001A

B) Add a SUB PWB ASSY (LPA20044-001A) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)

R1420 R1414

C) Add a SUB PWB ASSY (LPA20044-001A) on the DIGITAL BOARD ASSY as shown below. #500SPACER: PU59915-105(100pcs/1sheet)