LG RH4820W, Service Manual

Page: 24 / 150

3-12
Check R810, C927 Check R804,C892
S-VIDEO: No Y signal? S-VIDEO : No C signal? No COMPOSIT signal?
Check R918, C925
IC806 – 23
Check output
Check R821,C891
IC502 - 33 : HIGH ?
/RST_7302
IC502 –21,22
Check I2C CLK, DATA
IC502-32
Check Clock signal input
IC502-4~30 Check
VO_D0-~VO_D15 signal
IC101 => IC502 Check
VO_D0 ~ VO_D15 signal
IC804 – 29, 30
Check output
NO
NO
NO
YES YES YES
IC806 – 21
Check output IC806 – 26
Check output
Check R956, C896
IC311-5
Check signal
Check IC501-31,32
Signal and 5v power
Check R114 CLOCK
Check IC502 power and
other circuits
Check R954, C898
YES YES YES
YES YES YES
YES
YES
YES
YES
YES YES
YES
13. No composite/S-Video signal when playing DISC