Zenith XBR413 - Page 51

3-62
No Component video signal when playing DISC
Component : No Y Signal Component : No Pb Signal Component : No Pr Signal
R609, C613 R608, C612 R607, C611
IC610 – 12
Check input
IC610 – 14
Check input
C636 C635
R464
IC2078 – 6
Check Signal
R463
IC610 – 10
Check input
C637
R462
IC4004-8 : HIGH
/RST_VIDEO
R279 ~ R281
Signal and 3.3V level
IC4004 14,15
Check I2C Clk, Data
Check R112 CLOCK
IC4004 17,18,19 20, 29, 36
Check signal input
Check IC4002 power
And Other circuits
IC4004 21~24 61~64 Check
VO_D0~VO_D7 signal
RR123~RR126
Check VO_D0 ~VO_D15
YES
YES
YES
YES
YES
YES
YES
YES YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO NO
NO NO
NO
NO
NO
NO
NO
VDR ELECTRICAL TROUBLESHOOTING GUIDE