19
TROUBLESHOOTING GUIDES
D.
Is the output at pin
, of IC251?
Is 5V supplied to
pin , , , of IC251
and pin of IC301?
NO
Is 9V supplied pin
of IC251?
NO
Check Power circuit
Is there Audio signal
pin of IC301?
Is pin of IC301 0V?
NO
Check A/C head
Check PJ201 and A/C head
NO
NO
Check Power circuit
YES
YES
YES
YES
Check IC301 and IC251
No sound in the linear playback mode
56
58
60
14
30 36
20
75
1 0 0
10
Summary of Contents for DV-K892NZ-QB/M
Page 29: ...28 CIRCUIT DIAGRAM 1 INTERCONNECT WIRING DIAGRAM...
Page 30: ...29 CIRCUIT DIAGRAM 2 POWER SUPPLY SCHEMATIC DIAGRAM...
Page 31: ...30 CIRCUIT DIAGRAM 3 SYSCON CIRCUIT DIAGRAM...
Page 32: ...31 CIRCUIT DIAGRAM 4 VIDEO AUDIO SCHEMATIC DIAGRAM 4 HEAD...
Page 33: ...32 CIRCUIT DIAGRAM 5 VIDEO AUDIO SCHEMATIC DIAGRAM HI FI...
Page 34: ...33 CIRCUIT DIAGRAM 6 PIF SCHEMATIC DIAGRAM 4 HEAD 68 16 4...
Page 35: ...34 CIRCUIT DIAGRAM 7 HI FI SCHEMATIC DIAGRAM...
Page 36: ...35 CIRCUIT DIAGRAM 8 PIF MPX SCHEMATIC DIAGRAM HI FI 68 16...
Page 37: ...36 PCB CIRCUIT BOARD MAIN PCB...
