No Tv, External Input Video Signal - Philips DVDR630VR Service Manual

VDR ELECTRICAL TROUBLESHOOTING GUIDE

4. No TV, External Input video signal

No : TV signal
YES
TV 701-17
Check signal And
circuit
YES
C331
YES
IC301 - 32
YES
IC301 – 26 check
YES
Q307 collector
Signal, power 12 V
YES
C644, Q605, C645
Check circuit
YES
FL501
Check signal
No : AV1 signal
YES
NO
IC602 - 1
IC602 – 7
Check output
YES
IC301 - 28
NO
IC502-34 : HIGH
/RST_VDEC
YES
when reset IC502
NO
– 28, 29 Check I C
2
Clk, Data
YES
NO
check IC502 - 40
(VI_CLK)
YES
IC502 -> IC101
NO
Check VI_D0~VO_D9
signal
YES
<When playing DISC, no COMPONENT,
COMPOSIT/S-VIDEO signal> Check
3-75
No : AV2 signal
YES
NO
IC602 - 3
YES
R4103, R4106
signal
Check R533,
R526 Signal and
3.3V level
NO
Check X501 clock
oscillated
Check IC502
power and other
circuits
No : S-JACK signal
YES
IC7711 – 1, 3, 8
check
YES
IC602 – 5 check
Replace X501 X-
TAL