Caution : In this Manual, some parts can be changed for improving, theirperformance without notice in the parts list. So, if you need the latestparts information,please refer to PPL(Parts Price List) in ServiceInformation Center (http://svc.dwe.co.kr).
Jun, 2005
Service ManualSANYO DVDR + VCR Co m b i
MODEL :DVR-V100EDVR-VX100SPDVR-VX110SP
1
SPECIFICATIONS...............................................................................................................2
TROUBLE SHOOTING....................................................................................................................3
WAVEFORMS................................................................................................................................25
CIRCUIT DIAGRAM.......................................................................................................................28
PCB CIRCUIT BOARD..................................................................................................................43
INSTRUMENT DISASSEMBLY .....................................................................................................48
ELECTRICAL PARTSLIST............................................................................................................50
CONTENTS
2
TROUBLESHOOTING
3
SPECIFICATIONS
GeneralPower requirements 200240V~, 50/60 HzPower consumption 32W
Dimensions (approx.) 16.9 x 3.54 x 14.0 inches (430 x 91 x 354 mm) (w x h x d)Mass (approx.) 13.5 lbs (6.18 kg)
Operating temperature 41F to 95F (5C to 35C)Operating humidity 5% to 90%
Signal system PAL Colour
RecordingRecording formats DVD Video Recording, DVD-VIDEO
Recordable discs DVD+R, DVD+RWRecordable time [DVD] Approx. 1 hour (HQ mode), 2 hours (SP mode), 4 hours (EP mode), 6 hours (SLP mode)
[VCR] SP: 3 hours (E-180), LP: 6 hours (E-180)Video recording format
Sampling frequency 27MHzCompression format MPEG 2
Audio recording formatSampling frequency 48kHzCompression format MPEG1 Layer2
VCR SpecificationsHead system 4 Head Video, 2 Head Hi-Fi helical scan azimuth system
Timer 24-hour display typeTape speed SP: 23.39 mm/sec, LP: 11.70 mm/secTape width 12.7 mm
Rewind time less than 150 seconds (E-180)Antenna 75 ohms (VHF/UHF)
Channel coverage VHF: 2-12, 13-20, 74-80 / UHF: 21-69 / CATV: 1-41Frequency range 20Hz to 20kHz
Video S/N Over 43 dB (Standard recording)Audio S/N Over 65 dB (Hi-Fi), Over 40 dB (Mono)Resolution Over 240 lines (Standard recording)
DVD SpecificationsLaser system Semiconductor laser, wavelength 650 nm
Frequency response DVD (PCM 48 kHz): 8 Hz to 22 kHz, CD: 8 Hz to 20 kHzVideo S/N More than 60 dBAudio S/N More than 90 dB
Harmonic distortion Less than 0.01%Dynamic range More than 90 dB
Resolution Over 500 lines (HQ Recording)
InputsAntenna In/Out U/V-mixed; 75 unbalanced
Video In 1.0 Vp-p, unbalancedAudio In -8.8 dBm
DV In 4 pin (i.LINK/IEEE 1394 standard)
1. POWER CIRCUIT
5
TROUBLESHOOTING
4
TROUBLESHOOTING
.
32
31
IC501 IC501
IC501IC501
IC501IC501
IC502 IC502
61
2. SYSTEM CIRCUIT
25
IC501
IC501
(Pin14)
7
TROUBLESHOOTING
6
TROUBLESHOOTING
B. Digital Board
9
TROUBLESHOOTING
8
TROUBLESHOOTING
Noise appears on theplayback screen.
Is noise diminished by tracking
adjustment.
Noise band is trembled up and
down?
Re-adjust PATH.
Is the height of CTL HEAD normal?
No dust?
Is there problem in CTL Input
circuit and amplifier.
YES
NO
NO
NO
Is there CTL pulse at IC501
pin#97?
Check IC501.
Noise appears on the screen even
though changing tape.
Re-adjust the height of AC HEAD.
Remove the dust.
Check C510,R545~R547IC 501 pin #91, 92, 98.
NO
Re-adjust PATH.
C-1. Bad playback quality (1)
YES
YES
YES
YES
Noise appears on the Fullplayback screen.
Are SW pulse and HA SW normal?
Recheck step B-1
(Bad playback quallty (1)).
Check HEAD AMP connector
and HEAD.
YES
YES
NO
NOENVE Wave at P502 pin #4?
Check VIDEO circuit.
Are there SW, HA SW pulse at
IC501 pin #16, 18?
Check PCB Pattern.
Check IC501.
C-2. Bad playback quality (2)
YES
NO
YES
No broadcasting signalreceived
Is the output at IC501 pin# 61(CLK),
60 (DATA) normal?
Is SIF,Video output at TMI(RF101)
pin#16,19 normal?
Check IC 501.
Check IC301.
Check P100
YES
YES
NO
NO
NO
Is Video Signal input at IC501
pin#56?
Is there Video output at P100
pin#1?
Check TMI (RF101) Block.
NO
Check Video Buffer Q670, Q671
D. No broadcasting signal received
YES
YES
YES
11
TROUBLESHOOTING
10
TROUBLESHOOTING
Cassette tape isn t inserted.
Is 5V voltage obtained at Loading
parts IC501 pin#63?
Is 14V voltage obtained at
Capstan Motor P501 pin#2?
Check at EVER 14V
Check Q850.
Connect Capstan and Loading Motor.
Check connector and Capstan Motor.
YES
NO
NO
NO
Is 13V voltage obtained at Each
parts of Loading Motor?
Replace Loading Motor.
Check D851 and POWER circuit.
E. No CASSETTE Loading
YES
YES
F. AUTO STOP in Playback mode
VCR stops automatically inplayback mode.
Check R544,C516 and P501
pin#11.
Check S501, S502 REEL Sensor.
Is D.PG/FG pulse at IC501
pin#90 normal ?
Is C. FG pulse at IC501 pin#87
normal ?
Is there REEL Pulse at IC501
pin#79, 80?
Check and replace IC501.
NO
YES
YES
YES
NO
Check C.FG(R543,C517) and
P501 pin#1.
NO
G. DRUM Motor stops
H. CAPSTAN doesn t rotate
CAPSTAN doesn t rotate.
Is EVER 14V voltage obtained
at P501 pin#2?
YES
NO
NO
NO
YES
YES
Is Capstan PWM fit to
IC501 pin#77?
Is 3.2V voltage obtained
at P501 pin#5?
Is 2.7V voltage obtained
at P501 pin#9?
Check P501 Connector and
Capstan Motor.
Check EVER 14V.
(Q850)
Check Capstan FG
(IC 501 pin# 87).
Check
R541,R540,R539,R538,C518
Check R537,R536,C521
DRUM Motor stops.
Is 14V voltage obtained at P501
pin#8?
YES
NO
NO
NO
YES
YES
Is DRUM PWM fit to IC 501
pin#76?
Is 2.6V voltage obtained at
P501 pin#12?
Check Capstan Motor and
DRUM Motor.
Check EVER 14V
(Q850).
Check DRUM PG/FG
(IC 501 pin# 90).
Check R534,R535,C519,C520.
NO
13
TROUBLESHOOTING
12
TROUBLESHOOTING
3. VIDEO circuit
A. EE screen doesn t appear
EE MODE Picture NG
Is Video signal input atIC301 pin#48,50,52,54?
Is 5V supplied atpin#42,55,72,91of IC301?
Is C.S, DATA, CLOCK signalinput pin#67,68,69 of IC301?
Check IF and SCART JACK.
Check POWER circuit.
Check IC501pin #58,66,67
NO
YES
YES
NO
NO
YES
Is signal output from pin#65 ofIC301?
YES
NO Check IC301 pin#62 Q-V Sync.
Is signal input into pin#13of P100?
YES
NOCheck PCB Pattern.
Is signal output from pin#1of P100?
YES
NOCheck MPEG circuit.
Is signal output at IC301pin#61?
YES
NO
Check PCB Pattern.Is signal input at IC301
pin#56?
Check RF Output.Check PCB Pattern & LINE
out.
YES
YES
Check IC301.
NO
B. Playback picture doesn t appear1) No VCR Playback Picture
YES
YES
Is Y SIGNAL output at IC301
pin#46?
Is VIDEO SIGNAL output at IC301
pin#65?
Check and Replace IC301.
PB video signal missing.
Is Envelope output from IC301
pin#79?
NO
NO
Same as EE MODE check.
Is 5V supplied at IC301 pin#91?
Is SW Pulse input at IC301
pin#70?
Is 5V obtained at IC301 pin#24,
42,55,72,91?
Check POWER 5V.
Check IC501 pin#18.
Clean head or Replace head.
Check POWER 5V.NO
NO
Check PATTERN
NO
YES
YES
YES
YES
YES
YES
NO Does X301(4.43MHz)
oscillate?
Is Y SIGNAL input at IC301
pin#43?NO Check PATTERN
YES
NOReplace X301.
NO Check and replace IC301.
15
TROUBLESHOOTING
14
TROUBLESHOOTING
2) No DVD Playback Picture
YES
Are there video output signal at
JK601, JK101, JK102.
No DVD Video signal
Are there video signal at pin
#1,3,5,7,9,11 of P100?
NO
NO Check PC01, ICN01(CVBS out,
Y/C Out, Component Out)
CVBS: Check Pin #61 of
IC301
RGB : Check Pin #21, 23,25
(Y.Pb, Pr),28,31 of IC103 (Y/C)
Check PC05, P821, 5V, 12V
Power and cable connection
NO
YES
17
TROUBLESHOOTING
16
TROUBLESHOOTING
Is +5V supplied at IC301 pin#91?NO
NO
YES
YES
Is VIDEO SW Pulse input at IC301
pin#70?
Is REC signal output from IC301pin#94,95,89,90?
LP MODE: 89,90 PinSP MODE: 94,95Pin
Check video HEAD and Connector.
Is signal input into IC301
pin# 48,50,52,54,56?
Check POWE
