Horiznal bright line
2
4
Check if pin47
、
pin48 in N201
have saw-tooth wave output
Check R256
、
C233
Check replace TDA8844
Check if 15V 45V are normal ?
Check R804 VD407
R413 VD405
Check and replace R816 R817
R302 R303 DZ304 C310
Check T902
abnormal
normaol
no
yes