Zenith XBR413 - Page 53

3-64
No TV, External Input video signal
No : TV signal No : AV1 signal No : AV2 signal No : S-JACK signal
TV 701-17
Check signal And
circuit
IC602 - 1 IC602 - 3
IC7711 – 1, 3, 8
check
Replace
X401 X-TAL
IC602 – 5 checkC331
IC602 – 7
Check output
IC301 - 32
IC301 – 26 check
Q307 collector
Signal, power 12 V
Q507, Q504, Q505
Check circuit
MICOM – 50, 52
Check In/Output
C644, Q605, C645
Check circuit
R4601
Check signal
IC301 - 28
YESYESYES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
IC4009-8 : HIGH
/RST_VIDEO
IC2075 – 8,9
signal
YES
NO
when reset IC4009
– 31, 32 Check I
2
C
Clk, Data
Check R109,
R110 Signal and
3.3V level
YES
NO
check IC4004 91,
94 (VI_CLK, VI_
VSYNC0)
Check X401 clock
oscillated
YES NO
NO NO
<When playing DISC, no COMPONENT,
COMPOSIT/S-VIDEO signal> Check
IC4009 -> IC1099
Check VI_D0~VO_D7
signal
Check IC4009
power and other
circuits
YES
NO
NO NO