Philips DVDR-630-VR Service manual

Service Manual
Service
Service
VCR+DVD RECORDER
Service Service
Service
DVDR630VR
DVDR630VR/00/02/05/14

TABLE OF CONTENTS

Page
SECTION 1 SUMMARY ............................................1-1
Product safety servicing guidelines for
Video Products ........................................................1-2
Servicing Precautions .................................................1-3
The steps for change the option code ........................1-4
Up-dating Programs ................................................... 1-5
Specifications..............................................................1-7
SECTION 2 EXPLODED VIEWS ..............................2-1
Cabinet and Main Frame Section ............................... 2-2
RL-02A Deck Mechanism (For information only) .......2-3
Packing Accessory Section ........................................2-4
SECTION 3 ELECTRICAL ........................................3-1
Overall Wiring Diagram .............................................. 3-2
VCR Part (includes SMPS Power, Jack, Key & Timer board)
Electrical Adjustment Procedures .............................. 3-4
VCR Electrical Troubleshooting Guide.......................3-5
Block Diagrams........................................................ 3-21
Circuit Diagrams ...................................................... 3-35
Printed Circuit Diagrams ......................................... 3-59
VDR Part
VDR Electrical Troubleshooting Guide.................... 3-71
Block Diagrams........................................................ 3-78
Circuit Diagrams ...................................................... 3-85
Printed Circuit Diagrams ....................................... 3-107
RL-02A Loader Part (Non-Repairable Module - For information only)
RL-02A Loader Electrical Troubleshooting Guide .. 3-114 The difference between DVD-R/RW, DVD+R/RW
discs and DVD-ROM .......................................... 3-146
How to use test tool (For information only) ........... 3-155
Block Diagrams (For information only) .................. 3-163
Circuit Diagrams (For information only) ................ 3-167
Printed Circuit Diagrams (For information only).... 3-179
SECTION 4 MECHANISM OF VCR PART (D-37) ...4-1
SECTION 5 SERVICE PARTS LIST .........................5-1
SECTION 6 REVISION LIST ....................................6-1
©
Copyright 2004 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
Published by LG-KC 0435 AV System Printed in The Netherlands Subject to modification
GB
3139 785 30781
Version 1.1
1-1
SECTION 1
SUMMARY

CONTENTS

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ............. 1-2
SERVICING PRECAUTIONS .................................................................................................. 1-3
THE STEPS FOR CHANGE THE OPTION CODE ........................................................... 1-4
UP-DATING PROGRAM ........................................................................................................... 1-5
SPECIFICATIONS ...................................................................................................................... 1-7
1-2
IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-video service technicians.
When servicing this product, under no circumstances should the original design be modified or altered without permission from PHILIPS Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.
Special components are also used to prevent x-radiation, shock and fire haz­ard. These components are indicated by the letter “x” included in their compo­nent designators and are required to maintain safe performance. No deviations are allowed without prior approval by PHILIPS Electronics Corporation.
Circuit diagrams may occasionally differ from the actual circuit used. This way, implementation of the latest safety and performance improvement changes into the set is not delayed until the new service literature is printed.
CAUTION: Do not attempt to modify this product in any way. Never perform customized installations without manufacturer’s approval. Unauthorized modi­fications will not only void the warranty, but may lead to property damage or user injury.
Service work should be performed only after you are thoroughly familiar with these safety checks and servicing guidelines.
GRAPHIC SYMBOLS
The exclamation point within an equilateral triangle is intended to alert the service personnel to important safety information in the service literature.
The lightning flash with arrowhead symbol within an equilateral tri­angle is intended to alert the service personnel to the presence of noninsulated “dangerous voltage” that may be of sufficient magni­tude to constitute a risk of electric shock.
The pictorial representation of a fuse and its rating within an equi­lateral triangle is intended to convey to the service personnel the following fuse replacement caution notice:
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND RATING AS MARKED NEAR EACH FUSE.
SERVICE INFORMATION
While servicing, use an isolation transformer for protection from AC line shock. After the original service problem has been corrected, make a check of the fol­lowing:
FIRE AND SHOCK HAZARD
1. Be sure that all components are positioned to avoid a possibility of adjacent component shorts. This is especially important on items trans-ported to and from the repair shop.
2. Verify that all protective devices such as insulators, barriers, covers, shields, strain reliefs, power supply cords, and other hardware have been reinstalled per the original design. Be sure that the safety purpose of the polarized line plug has not been defeated.
3. Soldering must be inspected to discover possible cold solder joints, solder splashes, or sharp solder points. Be certain to remove all loose foreign par­ticles.
4. Check for physical evidence of damage or deterioration to parts and compo­nents, for frayed leads or damaged insulation (including the AC cord), and replace if necessary.
5. No lead or component should touch a high current device or a resistor rated at 1 watt or more. Lead tension around protruding metal surfaces must be avoided.
6. After reassembly of the set, always perform an AC leakage test on all exposed metallic parts of the cabinet (the channel selector knobs, antenna terminals, handle and screws) to be sure that set is safe to operate without danger of electrical shock. DO NOT USE A LINE ISOLATION TRANS­FORMER DURING THIS TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity in the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by a .15 mfd 150V AC type capacitor between a known good earth ground water pipe, conduit, etc.) and the exposed metal­lic parts, one at a time. Measure the AC voltage across the combination of 1500 ohm resistor and .15 mfd capacitor. Reverse the AC plug by using a non-polarized adaptor and repeat AC voltage measurements for each exposed metallic part. Voltage measured must not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC. Any value exceeding this limit consti­tutes a potential shock hazard and must be corrected immediately.
TIPS ON PROPER INSTALLATION
1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf space over, or close to, a heat duct, or in the path of heated air flow.
2. Avoid conditions of high humidity such as: outdoor patio installations where dew is a factor, near steam radiators where steam leakage is a factor, etc.
3. Avoid placement where draperies may obstruct venting. The customer should also avoid the use of decorative scarves or other coverings that might obstruct ventilation.
4. Wall- and shelf-mounted installations using a commercial mounting kit must follow the factory-approved mounting instructions. A product mounted to a shelf or platform must retain its original feet (or the equivalent thickness in spacers) to provide adequate air flow across the bottom. Bolts or screws used for fasteners must not touch any parts or wiring. Perform leakage tests on customized installations.
5. Caution customers against mounting a product on a sloping shelf or in a tilt­ed position, unless the receiver is properly secured.
6. A product on a roll-about cart should be stable in its mounting to the cart. Caution the customer on the hazards of trying to roll a cart with small cast­ers across thresholds or deep pile carpets.
7. Caution customers against using extension cords. Explain that a forest of extensions, sprouting from a single outlet, can lead to disastrous conse­quences to home and family.

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS

Good Earth Ground such as the Water Pipe, Conduit, etc.
A.C. Voltmeter
0.15uF
1500 OHM
10 WATT
Place this probe on each exposed metal part.
1-3

SERVICING PRECAUTIONS

CAUTION: Before servicing the VCR + DVD RECODER cov­ered by this service data and its supplements and addends, read and follow the
SAFETY PRECAUTIONS. NOTE: if unforeseen circumstances create conflict between the fol­lowing servicing precautions and any of the safety precau­tions in this publications, always follow the safety precau­tions.
Remember Safety First:
General Servicing Precautions
1. Always unplug the VCR + DVD RECODER AC power cord
from the AC power source before: (1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an elec-
trolytic capacitor. Caution: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard.
2. Do not spray chemicals on or near this VCR + DVD
RECODER or any of its assemblies.
3. Unless specified otherwise in this service data, clean
electrical contacts by applying an appropriate contact cleaning solution to the contacts with a pipe cleaner, cotton-tipped swab, or comparable soft applicator. Unless specified otherwise in this service data, lubrication of contacts is not required.
4. Do not defeat any plug/socket B+ voltage interlocks with
whitch instruments covered by this service manual might be equipped.
5. Do not apply AC power to this VCR + DVD RECODER
and / or any of its electrical assemblies unless all solid­state device heat sinks are correctly installed.
6. Always connect the test instrument ground lead to an
appropriate ground before connecting the test instrument positive lead. Always remove the test instrument ground lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn the power on. Connect an insulation resistance meter (500V) to the blades of the attachment plug. The insulation resis­tance between each blade of the attachment plug and acces­sible conductive parts (Note 1) should be more than 1M­ohm. Note 1: Accessible Conductive Parts include Metal panels, Input terminals, Earphone jacks,etc.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor compo­nent or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commer­cially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate an electrical charge sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protec­tive package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil,or comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.
Caution: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Normally harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static elec­tricity sufficient to damage an ES device.)

THE STEPS FOR CHANGE THE OPTION CODE

Note : This procedure must be done when IC304(On digital Board) or Digital Board assy is replaced.
Push Switch POWER ON/ OFF
at remocon or timer keyborad
Select DVD MODE at the set
use remocon or timer keyborad
Push REC+ PLAY
at timer keyboard
Use remocon and push ENTER
Use Direction Key at
remocon (LEFT/ RIGHT)
for select the position of option
Use Direction Key
at remocon (UP/ DOWN)
for change the option
After finish edit code of option
push ENTER at remocon
For finishing and intialized
the option code push REC+ FF at remocon
DETECT NEW EEPROM (OPTION EDIT SCREEN)
DVDR630VR/14
NAME HEX
OPT1 22 OPT2 48 OPT3 55 OPT4 95 OPT5 26 OPT6 9E OPT7 D6 OPT8 D3
DVDR630VR/05
NAME HEX
OPT1 12 OPT2 47 OPT3 42 OPT4 95 OPT5 26 OPT6 9E OPT7 F6 OPT8 D1
DVDR630VR/00
NAME HEX
OPT1 12 OPT2 44 OPT3 45 OPT4 95 OPT5 26 OPT6 9E OPT7 F6 OPT8 30
DVDR630VR/02
NAME HEX
OPT1 02 OPT2 46 OPT3 52 OPT4 95 OPT5 26 OPT6 9E OPT7 FE OPT8 68
Press “Enter” key to Save and Exit
1-4
BURNING DISC
• For up-dating the DVD program using the disc, it must burning the disc which include the DVD software.
• For recorder combi set which using the disc downloader program are DVD Program and Loader Program.
• In 2nd generation for recorder combi can download the DVD program and Loader program one by one, or all together.
• If you format like number 1 you’ll see capture like (figure 1)
• And you have three choice:
1. Main. It’s mean if you chose this it’ll up-dating only DVD prgram.
2. Loader.It’s mean if you chose this it’ll up-dating only Loader program.
3. ALL. It’s mean if you chose this it’ll up-dating DVD and Loader program.
• If you format like number 2 you’ll not see capture like figure 1 that give you choices, you have no choice only update DVD program
1-5

UP-DATING PROGRAM

* There is two way to format disc DVD Program
1. DVD and LOADER program format in one
disc
2. Only DVD program format in one disc
(Figure 1)
Number 1
Number 2
1-6

DVD UPGRADE INSTRUCTION

FORMAT NO 1
1. Press POWER KEY to turn on.
2. After booting, insert the upgrade disc, and you will see massage like [FIGURE 1]
3. Press “REC” key (front or remote) 3 times and you will see as [FIGURE 2] with remote Chose one of them then Press enter
4. For update both of them [MAIN & LOADER] we chose “ALL” and first you will see [FIGURE 3] DVD update Check the “Current Version” and “ New CD Write Version” and press “REC” key.
5. The DVD update will be on progress.And when finish update MAIN Version it’s automatically continue to Update Loader Version and You will see [FIGURE 4] Check the “Current Version” and “New CD Write Version “ and Press “REC” key once more
6. The LOADER update will be on progress. And tray will open.
7. Remove the disc and wait until finish
8. The tray will be close and open automatically after completing “UNDER UPDATE” 100%
9. Turn off the unit
10. Turn on again the unit is operation with new software
FORMAT NO 2
1. Press POWER KEY to turn on.
2. After booting, insert the upgrade disc, and you will see massage like [FIGURE 1]
3. Press “REC” key (front or remote) 3 times
4. The DVD update will be on progress.
Check the “Current Version” and “New CD Write Version “ and Press “REC” key once more
5. The tray will be open automatically after completing “UNDER UPDATE” 100%
6. Remove the disc andTurn off the unit
7. Turn on again the unit is operation with new software
[FIGURE 1] [FIGURE 2] [FIGURE 3] [FIGURE 4]
[FIGURE 1] [FIGURE 2]
1-7

SPECIFICATIONS

General
Power requirements AC 220-230V, 50 Hz Power consumption 35W Dimensions (approx.) 430 X 78.5 X 354 mm (w x h x d) Mass (approx.) 5.7 kg Operating temperature 5°C to 35°C Operating humidity 5 % to 90 % Television system PAL B/G, PAL I/I, SECAM D/K color system Recording format PAL
System
Laser Semiconductor laser, wavelength 650 mm Video head system Double azimuth 4 heads, helical scanning Signal system PAL
Recording
Recording format DVD+RW/+R Video format Recordable discs DVD-ReWritable, DVD-Recordable, DVD+ReWritable, DVD+Recordable Recordable time Approx. 1 hour (XP mode), 2 hours (SP mode), 4 hours (LP mode),
6 hours (EP mode)
Video recording format
Sampling frequency 27MHz Compression format MPEG 2
Audio recording format
Sampling frequency 48kHz Compression format Dolby Digital
Playback
Frequency response DVD (PCM 48 kHz): 8 Hz to 22 kHz, CD: 8 Hz to 20 kHz
DVD (PCM 96 kHz): 8 Hz to 44 kHz . Harmonic distortion Less than 0.008% (AUDIO OUT connector) Dynamic range More than 95 dB (AUDIO OUT connector)
Inputs
AERIAL IN Aerial input, 75 ohms VIDEO IN 1.0 Vp-p 75 ohms, sync negative, RCA jack x 1 / SCART x 2 AUDIO IN 0 dBm more than 47 kohms, RCA jack (L, R) x 1 / SCART x 2 DV IN 4 pin (i.LINK/IEEE 1394 standard) S-VIDEO IN (Y) 1.0 V (p-p), 75 Ω, negative sync, Mini DIN 4-pin x 1
(C) 0.3 V (p-p) 75 Ω
Outputs
S-VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, negative sync, Mini DIN 4-pin x 1
(C) 0.3 V (p-p) 75 Ω COMPONENT VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, negative sync, RCA jack x 1
(Pb)/(Pr) 0.7 V (p-p), 75 Ω, RCA jack x 2 Audio output (digital audio) 0.5 V (p-p), 75 Ω, RCA jack x 1 Audio output (analog audio) 2.0 Vrms (1 KHz, 0 dB), 600 Ω, RCA jack (L, R) x 1 / SCART
* Design and specifications are subject to change without notice. * Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of
Dolby Laboratories.
* DTS and DTS Digital Out are registered trademarks of Digital Theater Systems, Inc.
SECTION 2
EXPLODED VIEWS

CONTENTS

EXPLODED VIEWS .....................................................................................................................2-2
1. Cabinet and Main Frame Section ...........................................................................................2-2
2. Deck Mechanism Section (RL-02A) (For information only).................................................2-3
3. Packing Accessory Section ....................................................................................................2-4
2-1
2-2
EXPLODED VIEWS

1. Cabinet and Main Frame Section

463
250
463
463
469
255
469
470
469
A47
470
256
257
469
300
469
323
469
A46
468
321
A52
290
263
264
265
469
320
261
261A
457
457
278
457
457
A60
A00
469
A50
274
A44
260
457
A48
285
276
287
286
266
469
283
284
261A
289
452
452
261A
452
A43
280
288

2. Deck Mechanism Section (RL-02A) - For information only

1434
1026
1003
1005
1001
A001
1002
1434
1019
1038
1024
1432
1028
1025
1027
1433
A000
1029
1432
1033
1030
1021
A60
1025
1027
1432
1032
1432
1435
1015
1017
A004
1016
1436
1018
1014
1018A
1018B
1018C
1018E
1013
1012
1018D
1009
1044
1011
1434
1019
1020
A002
1045
1006
CN101
1041
1042
2-3
1043
1434
2-4

3. Packing Accessory Section

821
SCART CABLE
810
808
BATTERY
900
REMOCON
803
PACKING
CABLE ASS'Y RF
OPTIONAL PARTS
806
CABLE(COAXIAL)
811
PLUG ASS'Y 1WAY
812
PLUG ASS'Y 2WAY
INSTRUCTION ASSEMBLY
801
803
BAG
804
PACKING
802
BOX CARTON
SECTION 3
ELECTRICAL

CONTENTS

OVERALL WIRING DIAGRAM............................................ 3-2
VCR PART (includes SMPS Power, Jack, Key & Timer boards)
VCR ELECTRICAL ADJUSTMENT
PROCEDURES .................................................................... 3-4
VCR ELECTRICAL TROUBLESHOOTING
GUIDE................................................................................... 3-5
1. POWER (SMPS) CIRCUIT ....................................... 3-5
2. SYSTEM/KEY CIRCUIT ............................................3-8
3. SERVO CIRCUIT ......................................................3-9
4. Y/C CIRCUIT ........................................................... 3-12
5. HI-FI CIRCUIT ......................................................... 3-16
6. TUNER/IF CIRCUIT ................................................3-19
BLOCK DIAGRAMS ..........................................................3-21
1. POWER (SMPS) BLOCK DIAGRAM ..................... 3-21
2. TUNER/IF, NICAM & A2 BLOCK DIAGRAM ......... 3-23
3. VPS BLOCK DIAGRAM ..........................................3-24
4. Y/C BLOCK DIAGRAM ...........................................3-25
5. NORMAL AUDIO BLOCK DIAGRAM .................... 3-27
6. HI-FI BLOCK DIAGRAM .........................................3-29
7. SYSTEM BLOCK DIAGRAM ................................. 3-31
8. SCART & SWITCH BLOCK DIAGRAM ................. 3-33
CIRCUIT DIAGRAMS ........................................................3-35
1. POWER (SMPS) CIRCUIT DIAGRAM .................. 3-35
2. TUNER CIRCUIT DIAGRAM ................................. 3-37
3. A/V CIRCUIT DIAGRAM .........................................3-39
4. HI-FI CIRCUIT DIAGRAM .......................................3-41
5. SYSTEM CIRCUIT DIAGRAM ............................... 3-43
6. SCART (JACK) CIRCUIT DIAGRAM
(SCART MODEL ONLY) ......................................... 3-45
7. TIMER CIRCUIT DIAGRAM ................................... 3-47
* WAVEFORMS ......................................................... 3-49
* CIRCUIT VOLTAGE CHART...................................3-51
* IC BLOCK DIAGRAMS ...........................................3-55
PRINTED CIRCUIT DIAGRAMS .......................................3-59
1. VCR P.C.BOARD (TOP VIEW) .............................. 3-59
2. VCR P.C.BOARD (BOTTOM VIEW) ...................... 3-63
3. SMPS P.C.BOARD ..................................................3-65
4. JACK P.C.BOARD ...................................................3-68
5. KEY & TIMER P.C.BOARD .....................................3-69
VDR PART
VDR ELECTRICAL TROUBLESHOOTING
GUIDE.................................................................................3-71
1. POWER (SMPS) CIRCUIT ..................................... 3-71
2. NO COMPONENT VIDEO SIGNAL WHEN
PLAYING DISC .......................................................3-73
3. NO COMPOSITE / S-VIDEO SIGNAL WHEN
PLAYING DISC .......................................................3-74
4. NO TV, EXTERNAL INPUT VIDEO SIGNAL ......... 3-75
5. WHEN PLAYING DISC, NO AUDIO OUTPUT ...... 3-76
6. NO TUNER AUDIO OUTPUT ................................ 3-76
7. NO OPTICAL / DIGITAL OUTPUT ......................... 3-76
8. NO EXTERNAL INPUT 1 AUDIO........................... 3-77
9. NO EXTERNAL INPUT 2 AUDIO........................... 3-77
BLOCK DIAGRAMS ..........................................................3-78
1. VDR MAIN H/W BLOCK DIAGRAM ...................... 3-78
2. POWER BLOCK DIAGRAM ................................... 3-79
3. AUDIO IN/OUT BLOCK DIAGRAM ....................... 3-80
4. CPU & CONTROL REGISTER
BLOCK DIAGRAM ..................................................3-81
5. VIDEO IN/OUT BLOCK DIAGRAM ....................... 3-82
6. DV 1394 IN/OUT BLOCK DIAGRAM ..................... 3-83
7. MEMORY CARD IN/OUT BLOCK DIAGRAM ....... 3-84
CIRCUIT DIAGRAMS ........................................................3-85
1. BGA 308P CIRCUIT DIAGRAM ............................. 3-85
2. DDR & B TO B CONNECTOR
CIRCUIT DIAGRAM ................................................3-87
3. POWER, FLASH, CONNECTOR CIRCUIT
DIAGRAM ................................................................3-89
4. RST, CONTROL/STATUS_REG., ATAPI,
HOST_CPLD, LATCH CIRCUIT DIAGRAM .......... 3-91
5. VIDEO_IN, VIDEO_OUT CIRCUIT DIAGRAM ...... 3-93
6. DV1394, HDMI CIRCUIT DIAGRAM ..................... 3-95
7. AUDIO IN/OUT CIRCUIT DIAGRAM ..................... 3-97
* WAVEFORMS ......................................................... 3-99
* CIRCUIT VOLTAGE CHART................................ 3-101
* IC BLOCK DIAGRAMS ........................................ 3-103
PRINTED CIRCUIT DIAGRAMS .................................... 3-107
1. VDR P.C.BOARD (TOP VIEW) ............................ 3-107
2. VDR P.C.BOARD (BOTTOM VIEW) ..................... 3-111
RL-02A LOADER PART
(FOR INFORMATION ONLY).......................... 3-113 TO 3-184
3-1
15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
123456789
1011121314151617181920
21
123456789
1011121314151617181920
21
SPD.F
GND
INTR/PROG
NC
GND
RADIO'H'
AMP ON
VDR REDET
NCNCNC
VDR CLK
DATA(VCR-VDR)
DATA(VDR-VCR)
VDR ENA
AMP CLK
AMP RX
AMP TX
AMP READY
AMP MUTE
NC
15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
P6603
P6602
PM601PN302
PN302
PN301
PN301
PMD01
PMD02
PN304
CON401
CON401
PPM01
P101
P3D01
P3D03
P104
P103
P103
P104
P3D02
P3D02
PMC01
PMC01
P3D03
P3D01
PN303
PM602
PM603 P6M01
13.5VA(DRUM)
A/E(-)
A/E(+)
CFG
CAP.VCC
SERVO VCC
CAP.REV'H'
I-LIMIT
MOTOR GND
S.GND
DRUM VCC(13.5VA)
CAP.CTL
L/M CTL
DPG/DFG
DRUM CTL
8.7V
GND
1
2
1
2
R493
3-2
3-3

OVERALL WIRING DIAGRAMS

3-4
ELECTRICAL ADJUSTMENT PROCEDURES
1. Servo Adjustment
1) PG Adjustment
• Adjustment And Specification
• Test Equipment a) OSCILLOSCOPE : PAL SP TEST TAPE
MODE
PLAY
• Adjustment Procedure
a) Insert the SP Test Tape and play. b) Connect the CH1 of the oscilloscope to the H/SW and CH2 to the “VCR VIDEO” TP for the VCR. c) Trigger the mixed Combo Video Signal of CH2 to the CH1 H/SW, and then check the distance (time dif-
ference), which is from the selected A(B) Head point of the H/SW signal to the starting point of the ver­tical synchronized signal, to 6.5H ± 0.5H (416µs, 1H=64µs).
• PG Adjustment Method
a-1) Playback the SP standard tape b-2) Wait for 3seconds with F/P “REC” key and “PLAY” key presseed at the same time. < Digitron[ - - ] > c-3) Repeat the above step(No.b-2), then it finishes the PG adjusting automatically. < Digitron[ PG ] > d-4) Stop the playback, then it goes out of PG adjusting mode after mony the PG data.
• CONNECTION
• WAVEFORM
V.Out
H/SW(TP)
R/C TRK JIG KEY 6.5 ± 0.5H
MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION
H/SW
(TP)
TP
(VCR
VIDEO)
(CH2)
(CH1)
OSCILLOSCOPE
CH1 CH2
R/C KEY
H/SW
(TP)
VCR BOARDVDR BOARD
"VCR VIDEO" TP
VCR PART
H/SW
Composite
VIDEO
6.5H(416µs)
3-5

VCR ELECTRICAL TROUBLESHOOTING GUIDE

1. Power(SMPS) CIRCUIT
NO 5.3VA.
Replace the F101 (Use the same Fuse)
Is the F101 normal?
Is the TH01 Normal?
Is the BD101 Normal?
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Replace the BD101
Replace the TH01
Is the D102 normal?
Check or Replace the D102
Replace the D121
Replace the IC103
Replace the D126
Replace the D129
Replace the D130
Replace the D127
Replace the D128
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Is the Vcc (11V - 18V) supplied to IC101 Pin2?
NO
Is the D121 normal?
Is there about 2.5V at the IC103 Pin1?
Is the D126 normal?
Is the D129 normal?
Is the D130 normal?
Is the D127 normal?
Is the D128 normal?
YES
Power Line of Main PCB(VCR) is short
3-6
VCR ELECTRICAL TROUBLESHOOTING GUIDE
No 12VA
Check or Replace the D126
Is the Vcc(13V) supplied to C130?
Check or Replace the Cap / Drum
Is the D132 Normal?
NO
NO
Replace the D132
YES
YES
(To Cap, Drum Motor )
No REG 12V
Check or Replace the D126
Check the ‘PWR CTL “H”’signal from µ-com
Check the 33V Line
Replace the Q126
Is the Vcc(13V) sup­plied to Q126Collector?
Is the Vcc(33V) sup­plied to Q126 Base?
Is the Q126 Nomal?
Check or Replace the D126
NO
NO
NO
YES
YES
YES
NO VFD
Check or Replace the R107
Is the R107 Normal?
Is the D128 Normal?
NO
Check or Replace the D128
Check or Replace the ZD151
NO
NO
YES
Is the ZD151 Normal?
Check or Replace the D127
YES
YES
No 33V
Check or Replace the D130
Is the Vcc(33V) sup­plied to Q123 Emittor?
Is the Q123 Base ‘H’?
NO
Check the ‘PWR CTL “H”’signal from µ-com
NO
YES
Check or Replace the Q123
YES
3-7
VCR ELECTRICAL TROUBLESHOOTING GUIDE
No 28V (HSR)
Check or Replace the D129
Is the Vcc(30V) supplied to Q120 Collector?
Is the Vcc(33V) supplied to Q121 Collector?
Is the Vcc(30V) sup­plied to Q120 Base?
NO
NO
Check or Replace the ZD153
NO
Check the ‘HSR “H” signal from µ-com
Check or Replace the Q121/Q122 & 33V line
YES
YES
Check or Replace the Q120
YES
3-8
2. SYSTEM/KEY CIRCUIT
(1) AUTO STOP
(2) The unstable loading of a Cassette tape
Auto Stop
Does the H/SW waveform appear at IC501 Pin23?
Do the T-UP Reel Pulses appear at IC501 Pin3?
Is 12V applied to PMC01 Pin8?
Check the Drum Motor signal.
Does 5.0V appear at the RS501?
Check the Power Circuit.
Check the power.
Is 5.0V applied to the
R544 ?
Refer to SMPS 5.3VA troubleshooting.
Check IC501 Pins86, 87, 88, 89.
Do T/UP Reel Pulses appear at the Q514 Base terminal?
Replace the T/UP Reel Sensor (RS501).
Check the CST SW and the peripheral circuitry.
Replace the IC501.
The unstable loading of a
Cassette tape
Does the “H” signal appear at IC501 Pin32 during inserting the CST ?
Does the “L” signal appear at IC501 Pin19 while inserting the CST?
Check the Deck Mechanism.
Note :
Auto stop can occur because Grease or Oil has dried up
YES
YES
NO
YES
YES
YES
NO
NO
NO
NO
NO
NO NO
YES
YES YES
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-9
3. SERVO CIRCUIT
(1) Unstable Video in PB MODE
Does the Noise level of the screen change periodically?
Do the CTL pulses appear at IC501 Pin8?
Is adjusting the height of
the CTL Head accurate?
Readjust the height of the CTL Head.
Replace the IC501.
Refer to “When the Y signal doesn’t appear on the screen in PB Mode”.
Does the CFG waveform appear at the IC501 pin9?
On tracking, do the CTL pulses move?
Does the Video Envelope waveform appear at IC501 Pin24?
Replace IC501.
YES
YES
YES
NO NO
NO
NO
(2) When the Drum Motor
(2) doesn’t run.
Do the DFG Pulses appear at PMC01 Pin11?
Replace the Cap M.
Aren’t the foil patterns and the Components between IC501 Pin 104 and PMC01 Pin11 shorted?
Replace the IC501.
Refer to “(2) No 12VA of Power section”
Do the Drum PWM Pulses appear at IC501 Pin107?
Aren’t the foil patterns and the Components between IC501 Pin107 and PMC01 Pin12 shorted?
Do the DFG Pulses appear at IC501 Pin104?
Do the Drum PWM Pulses appear at IC501 Pin107?
Are the connecting patterns and the Components
between IC501 Pin107 and PMC01 Pin12 shorted?
When the Drum Motor doesn’t run,
Does 12V appear at PMC01 Pin8?
Does 2.8V appear at PMC01 Pin12?
Check the connector (PMC01) and the Drum Motor Ass’y.
NO
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-10
Does the CFG signal appear at PMC01 Pin1?
Does the PWM signal appear at IC501 Pin108?
Does 2.8V appear at PMC01?
Check the PMC01 and the Capstan Motor Ass’y.
Does the Capstan PWM signal appear at IC501 Pin108?
Aren’t the foil patterns and Components
between IC501 Pin108 and PMC01 Pin9 short?
Does the CFG signal come into IC501 Pin9?
Aren’t the foil patterns and Components
between IC501 Pin108 and PMC01 Pin9 short?
2. SERVO CIRCUIT
(3) When the Capstan Motor doesn’t run,
NO
NO
NO
YES
YES
YES
When the Capstan Motor doesn’t run,
Does 12VA appear at PMC01?
YES
Replace the IC501.
YES
NO
NO
YES
Refer to “SMPS(CAPSTAN/12Volt) Trouble Shooting”.
Aren’t the foil patterns and component between IC501 Pin87 and PMC01 Pin1 shorted?
Check the Capstan Motor Ass’y.
NO
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-11
Keys do not work
Is 5V applied to IC501 Pin36?
Does FLD change when a function button is pressed?
Refer to “SMPS 5.3VA Trouble Shooting”.
Replace the defective switches.
YES
NO
NO
2. SERVO CIRCUIT
(4) Keys do not work
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-12
4. Y/C CIRCUIT
(1) No Video in EE Mode,
No Video in EE Mode
Does the Video signal appear at IC301 Pin48?
Check the 19Pin
Is REG 5.0V applied to IC301Pins18, 24, 42, 55, 72, 91?
Does the Video signal appear at IC301 Pin65?
Does the Video signal appear at the IC901 Pin23?
Does the Video signal appear at the PMD02 Pin7?
Does the Video signal appear at the PMD02 Pin5?
Check the 5.0V, 5.3VA Line. (Power Circuit)
Is I2C BUS signal applied to the IC301 Pins68, 69?
Check C316. (AGC)
Replace IC301.
Does the 12VT, 5.3VA appear at the IC901 Pin3, 4.
Check the 12V, 5.4VA Line. (Power Circuit)
Check the Video Buffer Q905.
Check the DVD Board Video path.
Check the System Circuit. (Refer to ‘SYSTEM I
2
C BUS
CHECK Trouble Shooting’)
YES
YES
YES
YES
YES
YES
YES
Replace IC901.
YES
NO
NO
NO
NO
NO
NO
NO
NO
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-13
3. Y/C CIRCUIT
(2) When the Y(Luminance) signal doesn’t appear on the screen in PB Mode,
Is 5.0V 5.3VA applied to IC301 Pins24, 42, 55, 72, 91?
Is I2C BUS signal applied to the IC301 Pins68, 69?
Does the normal RF signal appear at IC301 Pin 78?
Check the line of the 5.0V
5.3V Line. (Power Circuit)
Check the System Circuit. (IC501 Pin23)
Check the V.H.S/W level.
(Check R303, R304)
Refer to ‘SYSTEM I2C BUS CHECK Trouble Shooting’.
Is the V.H.S/W signal applied to IC301 Pin70?
Is the V.H.S/W “H” about
3.4V at the IC301 Pin70?
Clean the Drum.
Check the path of the Y(Luminace) RF signal. (Check the C327)
Check the path of the Y(Luminace) RF signal. (Check the C312)
Does the Y(Luminance) RF signal appear at IC301 Pin79?
Is the Y(Luminance) Video waveform showed up at IC301 Pin43?
Replace IC301.
NO
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
Replace the IC301.
NO
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-14
3. Y/C CIRCUIT
(3) When the C(Color) signal doesn’t appear on the screen in PB Mode,
Is 5.0V 5.3VA applied to the
IC301 Pins24, 42, 55, 72, 81.
Does the Color signal appear at IC301 Pin25?
Check the line of the 5.0V
5.3VA Line. (Power Circuit)
Replace the X301.
Check the Color Pass.
Does the X301 (4.43MHz) osxillate?
Replace the IC301.
Does the Color signal appear at IC301 Pin48?
Replace the IC301.
NO
YES
Is the Color Rotary signal applied to the IC301 Pin70?
Check the Color Rotary Circuit. (IC501 Pin98)
NO
YES
Is Color Rotary “H” about
3.4V?
NO
Check the Color Rotary level. (Check the R303)
YES
YES
YES
NO
NO
NO
VCR ELECTRICAL TROUBLESHOOTING GUIDE
3-15
3. Y/C CIRCUIT
(4) When the Video signal doesn’t appear on the screen in REC Mode,
VCR ELECTRICAL TROUBLESHOOTING GUIDE
Is the EE signal normal?
Does the RF signal appear at the IC301 Pin78?
Check EE Mode.
Check the System of REC ‘H’.(the IC501 Pin27 / the D301)
Replace the IC301.
Is the REC ‘H’ signal (about 4V) applied to the IC301 Pin80?
Check the circuit of the
IC301 Pin85, 86.
Check REC Luminace pass & Color pass.
Does the REC RF signal appear at the IC301 Pins88, 89, 94, 95?
NO
YES
Is 5.0V 5.3VA applied to the IC301 Pins24, 42, 55, 72, 91?
Check the line of the 5.0V
5.3VA line. (Power Circuit)
NO
YES
Does PB Mode operate nomally?
NO
Check PB Mode.
YES
Check the Drum & Drum
Connector
YES
YES
YES
NO
NO
NO
NO
3-16
VCR ELECTRICAL TROUBLESHOOTING GUIDE
5. Hi-Fi CIRCUIT
(1) No Sound(EE Mode)
YES
No Sound.
Check the AV1 Audio of IC801 Pins6, 7.
Check the AV2 Audio of IC801 Pins8, 9.
Check the AV3 Audio of IC801 Pins10, 11.
Check the Vcc of IC801 Pins34, 40, IC804 Pin13.
YES
Check the IIC Clock and DATA at IC801 Pins42, 43.
YES
YES
Check the Audio of IC801 Pins16, 17.
Check the SC901, JK901.
Check the Scart1 Jack. (SC901 Scart1 Audio in Pin2, 6).
NO
NO
Check the Scart2 Jack. (SC901 Scart2 Audio in Pin2, 6).
NO
Check the front Jack.
Check the Power 5.0V, 12V.
YES
NO
Check the IC501 Pins59, 60.
NO
Replace IC801.
NO
Check the Audio of PMD02 Pin19, 21.
Check the Pcb Pattern between IC801
Pin16, 17 with PMD02 Pin19, 21.
NO
YES
YES
Check the Audio of PMD02 Pin23, 25. Check the DVD Board Audio path.
NO
Check the TU Audio of IC801 Pins2, 3.
Check the IC751 Pin30, 31.
NO
Check the DVD Audio of IC801 Pins4, 5.
Check the DVD Audio OUT. (JK902 DVD_A_L_L/R).
NO
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