No External Input 1 Audio; No External Input 2 Audio - Philips DVDR630VR Service Manual

VDR ELECTRICAL TROUBLESHOOTING GUIDE

8. No External Input 1 audio

NO
Audio output even
When playing DISC
YES
NO
PN304-19~22 Check
audio signals
YES
NO
IC801 – 1, 7 Check
audio signals
YES
NO
IC802-14 Check
High?
YES
Check IC802 power
And Other circuits
<when playing DISC,
no audio output> check
Check FFC Cable
and VCR part
Check IC801 power
and other circuits
Check AV_RST1 and
power, other circuits
3-77 3-77

9. No External Input 2 audio

NO
Audio output even
When playing DISC
YES
NO
PN5401 – 4~6 Check
audio signals
YES
NO
PN304-27~30 :
Check audio signals
YES
NO
PN304-19~22
Check audio signals
YES
NO
IC801 – 1, 7 Check
audio signals
YES
NO
IC802-14 Check
High?
YES YES
Check IC802 power
And Other circuits
<when playing DISC,
no audio output> check
Check Audio Cable
Check PN302-5,6
and Front Jack Cable
Check FFC Cable
and VCR part
Check IC801 power
and other circuits
Check AV_RST1 and
power, other circuits