Daewoo DV6T834N, Service Manual

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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#9,14
#10,15
#2,4?
Is there recording signal at
IC251 pin#61?
Check Input LINE1 JACK.
Check Input LINE2 JACK.
Check ICD02(DVD).
Check signal flow circuit.
YES
NO
NO
NO
Signal at IC251 pin#61 is transferred to
IC301 pin#76,78,80?
Collect signal at Q203 is about
70Vp-p at 70KHz?
Check IC251.
YES
YES
Check Q202.
NO
Check P202 pin#2, 4, 8 and A/C
HEAD.
YES
REC (H) BASE voltage at Q206
is 5V?
Check IC601 pin#22.
NO
YES