
Troubleshooting
7-8
Samsung Electronics
All power is measured
correctly and front cable is
properly connected?
All clocks (20MHz,
33.8688MHz, 27MHz) of main PCB
oscillate normally?
Check A/V decoder signal process block.
Check all clock oscillating parts.
Yes
Yes
No
/CS2, /RD, /WR signal occur?
Check short pin out of micom
common-bus (8-bit).
Check short or operating of micom.
Check soldering of micom and
communication devices.
Yes
No
Play works?
Check VIC1 peripheral unit.
Yes
No
Yes
Yes
Yes
Yes
C
Key operation or
remote control error
MIC1-9 is fixed to 0V?
MIC7-4, 5 pin is fixed to 0V?
Check A/V decoder signal process block.
Check DVD signal process block.
Yes
Yes
MIC1-10, 19
waveform state (0, 1)
changes whenever pressing
front key?
Check MIC1 peripheral soldering.
Yes
Check eith article
"No Front (SET) Operation"
No
C
No
No
Содержание DVD-A500
Страница 29: ...Product Specification 3 2 Samsung Electronics MEMO ...
Страница 65: ...Circuit Descriptions 6 20 Samsung Electronics MEMO ...
Страница 75: ...Troubleshooting 7 10 Samsung Electronics MEMO ...
Страница 76: ...Samsung Electronics 8 1 8 Exploded View and Parts List 8 1 Cabinet Assembly 8 2 Deck Assembly Page 8 2 8 4 ...
Страница 81: ...Exploded Views and Parts List 8 6 Samsung Electronics MEMO ...
Страница 95: ...Samsung Electronics 9 14 Electrical Parts List MEMO ...
Страница 97: ...Block Diagram 10 2 Samsung Electronics MEMO ...
Страница 99: ...PCB Diagrams 11 2 Samsung Electronics 11 1 Main COMPONENT SIDE SOLDER SIDE ...
Страница 100: ...11 2 Jack PCB Diagrams 11 3 Samsung Electronics COMPONENT SIDE SOLDER SIDE ...
Страница 101: ...PCB Diagrams 11 4 Samsung Electronics 11 3 S M P S 11 4 AMP ...
Страница 102: ...11 5 Front PCB Diagrams 11 5 Samsung Electronics ...
Страница 103: ...PCB Diagrams 11 6 Samsung Electronics 11 6 Headphone 11 8 Deck 11 7 Key ...
Страница 104: ...Samsung Electronics 12 1 12 Wiring Diagram ...
Страница 105: ...Wiring Diagram 12 2 Samsung Electronics MEMO ...
Страница 107: ...Schematic Diagrams 13 2 Samsung Electronics 13 1 S M P S ...
Страница 108: ...Schematic Diagrams 13 3 Samsung Electronics 13 2 Main Power Supply ...
Страница 109: ...Schematic Diagrams 13 4 Samsung Electronics TO INTERFACE CONNM 13 3 Main Micom ...
Страница 110: ...Schematic Diagrams 13 5 Samsung Electronics 13 4 Servo ...
Страница 111: ...Schematic Diagrams 13 6 Samsung Electronics 13 5 RF ...
Страница 112: ...Schematic Diagrams 13 7 Samsung Electronics 13 6 DSP ...
Страница 113: ...Schematic Diagrams 13 8 Samsung Electronics 13 7 A V Decoder ...
Страница 114: ...13 8 Video Schematic Diagrams 13 9 Samsung Electronics ...
Страница 115: ...Schematic Diagrams 13 10 Samsung Electronics 13 9 Audio 5 1 Channel DSP ...
Страница 116: ...Schematic Diagrams 13 11 Samsung Electronics 13 10 Audio 5 1 Channel Analog ...
Страница 117: ...Schematic Diagrams 13 12 Samsung Electronics 13 11 Audio 2 Channel ...
Страница 118: ...Schematic Diagrams 13 13 Samsung Electronics 13 12 Interface ...
Страница 119: ...Schematic Diagrams 13 14 Samsung Electronics FROM TO 13 13 Amp ...
Страница 120: ...Schematic Diagrams 13 15 Samsung Electronics FROM TO 13 14 Headphone ...
Страница 121: ...Schematic Diagrams 13 16 Samsung Electronics 13 15 Front ...
Страница 122: ...Schematic Diagrams 13 17 Samsung Electronics 13 16 Key ...
Страница 123: ...Schematic Diagrams 13 18 Samsung Electronics 13 17 Deck ...
Страница 124: ...Schematic Diagrams 13 19 Samsung Electronics 13 18 Remote Control ...
Страница 125: ...Schematic Diagrams 13 20 Samsung Electronics MEMO ...