Rolsen LT-30FEP, Service Manual

Page: 11 / 28

11
T R O U B L E S H O O T I N G
No
Yes
Yes
No Yes
No Picture &
Sound OK
Is OSD O.K?
Check IC201
Pin 32/39 O.K?
No
Check IC201
Video Inputs
Pin78/80/82/96/97
/98/100/102
Check IC01
L102(DCLK)
R104(LHSYNC)
R103(LVSYNL)
O.K ?
Check signals from
IC01~IC402.
Check Vcc of
IC402
Check Vcc, X-tal &
IIC of IC201