
5. Trouble Shooting Guide
DV-135
12
1. Basic Operating
Is STANDBY LED on?
Push power on.
Is POWER on?
Does initial read work
Turn Power on.
Does it play?
Does it output audio?
OK
Yes
Yes
Yes
Yes
Yes
Yes
Check AUDIO circuit.
No
Check tracking SERVO
circuit.
No
Check LASER circuit.
Check focus circuit.
Check disc.
Check protect circuit.
No
Check power supply circuit.
No
Check POWER SUPPLY
circuit.
Check connection CN906.
No
2. Front Micom Circuit
Replace IC904
Yes
Check if IC904 Pin38
is HIGH ?
Check IC904 reset waveform
Check if IC904 Pin44
is High(+5.0V) ?
Check +5.0V line.
Check if IC904 Pin4
is Low(0 V) ?
Check Power down line.
Check if IC904 Pin18
is High ?
Yes
Check Protection circuit.
No
No
No
No
No
No
No
1
Does DVD appear
at VFD ?
Push power on.
Does loading appear
at VFD ?
Yes
Does no DISC or
time appear at VFD ?
Yes
Check if DVD an Audio Micom
Interface is OK.
Yes
Does Video1/2,
MD/TAPE, TV, FM 87.5kHz
appear at VFD ?
Yes
OK
Check from Micom
to DVD Interface
Check Power
Check Loader.
Check MPEG PCB
Yes
Check Power Supply circuit
No
No
No
Does it not appear
DVD Display at VFD ?
Yes
Does it apear PCM
96kHz Stereo at VFD ?
Yes
Check connector
CN901 if is normally
Yes
Check power supply
circuit of Main PCB
Yes
Refer to Power Supply Circuit.
Check Oscillator of X901
Yes
Replace X901
Check if IC401 Pin65
is work ?
Yes
Check DVD Reset control
Check if Connector
CN901 Pin4 is work ?
Yes
Check Connector
(CP901,CP903) if is
normally.
Yes
Reconnect it.
No
Reconnect it.
No
No
No
No
No
No
No
No
1
No
-. Audio Part
Содержание DV-135
Страница 1: ...DV 135 Digital Home Cinema System ...
Страница 5: ...2 Specifications DV 135 5 ...
Страница 9: ...4 Connecting to Equipment DV 135 Connecting to TV Scart Cable Optional 9 ...
Страница 19: ......
Страница 20: ......
Страница 21: ...8 Internal Block Diagram of ICs DV 135 AK 4112A 21 ...
Страница 22: ...8 Internal Block Diagram of ICs DV 135 AME1117 BU4052BCF ZR36710a 22 ...
Страница 23: ...8 Internal Block Diagram of ICs DV 135 CS4228A ZR36701 23 ...
Страница 25: ...8 Internal Block Diagram of ICs DV 135 CXP82852 25 ...
Страница 27: ...8 Internal Block Diagram of ICs DV 135 LA7952 NJM2068 NJU7313A 27 ...
Страница 30: ...10 Block Diagram 30 DV 135 ...
Страница 31: ...DV 135 11 Wiring Diagram 31 ...
Страница 32: ... LEVEL Diagram 12 Level Diagram 32 DV 135 ...
Страница 34: ...13 Schematic Diagram 34 DV 135 DSP 1 ...
Страница 35: ...13 Schematic Diagram DV 135 DSP 2 35 ...
Страница 36: ...13 Schematic Diagram DV 135 DSP 3 36 ...
Страница 37: ...13 Schematic Diagram DV 135 MPEG 37 ...
Страница 38: ... Main Schematic Diagram 1 Power Schematic Diagram 13 Schematic Diagram 38 ...
Страница 39: ... Main Schematic Diagram 2 Amp Schematic Diagram 13 Schematic Diagram 39 ...
Страница 40: ... Main Schematic Diagram 3 Input Schematic Diagram 13 Schematic Diagram 40 ...
Страница 41: ... Main Schematic Diagram 4 Video Schematic Diagram 13 Schematic Diagram 41 ...
Страница 42: ...1 2 BOTTOM View Front PCB 1 1 TOP View 14 Printed Circuit Diagram 42 DV 135 Front PCB ...
Страница 43: ...2 BOTTOM View DSP PCB 1 TOP View 14 Printed Circuit Diagram 43 ...
Страница 44: ...2 BOTTOM View MPEG PCB 1 TOP View 14 Printed Circuit Diagram 44 ...
Страница 45: ...DV 135 MAIN PCB 14 Printed Circuit Diagram 45 ...
Страница 46: ...2 BOTTOM View DV 135 MIC PCB 1 TOP View 14 Printed Circuit Diagram 46 ...
Страница 47: ...15 Mechanism NO Q ty Description PART NAME Hexagon Ni Coated Ni Coated Ni Coated 47 DV 135 ...
Страница 48: ...16 Exploded View and Mechanical Parts List 48 DV 135 ...
Страница 50: ...16 Exploded View and Mechanical Parts List DV 135 50 ...