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22
TROUBLESHOOTING
E. No NORMAL AUDIO playback in record/playback mode(Check in REC mode)
No Normal Audio playback in
record/playback mode
Are there Audio signal at IC251
pin#4~9?
Is there recording signal at
IC251 pin#21?
Check Input LINE1 JACK.
Check Input LINE2 JACK.
Check ICD03(DVD).
Check signal flow circuit.
YES
NO
NO
NO
Signal at IC251 pin#21 is transferred to
IC301 pin#13,15,17?
Collect signal at C222 is about
70Vp-p at 70KHz?
Check IC251.
YES
YES
Check Q203.
NO
Check P201 pin#2, 4, 8 and A/C
HEAD.
YES
REC (H) BASE voltage at Q206
is 5V?
Check IC501 pin#45.
NO
YES
All manuals and user guides at all-guides.com
Summary of Contents for DC-F841DS
Page 27: ...26 CIRCUIT DIAGRAM 1 POWER CIRCUIT DIAGRAM All manuals and user guides at all guides com...
Page 29: ...28 CIRCUIT DIAGRAM 3 A V CIRCUIT DIAGRAM All manuals and user guides at all guides com...
Page 37: ...36 PCB CIRCUIT BOARD 1 1 VCR MAIN All manuals and user guides at all guides com...
Page 38: ...37 PCB CIRCUIT BOARD 1 2 POWER All manuals and user guides at all guides com...
Page 39: ...38 PCB CIRCUIT BOARD 1 3 DVD MAIN All manuals and user guides at all guides com...
Page 58: ...57 ELECTRICAL PARTSLIST All manuals and user guides at all guides com...