Samsung DVD-SH853, Service Manual

Page: 45 / 120

Trouble Shooting
Samsung Electronics 4-23
Refer to wave pattern image of Fig. 4-16
Refer to wave pattern image of Fig. 4-17
Refer to wave pattern image of Fig. 4-17
AV3 CVBS Video Input Error
Pin 8 in IC216
has normal level?
Check the AV cable.
No
Yes
I2C singnals in
IC216(pin16, 18) are swinged
between 0~5V?
Change Main PCB
Check Video out of TV is set RGB
mode
No
Yes
12pin of CN3 of
Jack PCB or CON2 of Main PCB
has normal level?
Check the connection between
12pin of CN3 of Jack PCB and
pin 35 in IC216
No
Yes