NO PICTURE / NO SONUD
Is any OSD displayed?
No
Yes
OKCheck IC01 pin30,31,32
Check receiving system in MENU
(R,G,B)& excute Auto-program.
Not OK
Check IC01 pin9,10Does the Auto-programYes
(V-Sync, H-Sync)operate properly.
Check IC01 pin36,37
(XLC, EXLC)Not OK
& IC01
Store in manual-program MENU
CheckNot OKCheck 5V, 33V & IIC Bus Line
5V, 33V &of TUNER
IIC Bus Line
OK
Go to
Not OKIs the CVBS signal OK.
Check / ReplaceNO SOUND /
( IC512 pin6 )
TUNER, IC512PICTURE OK
OK
Not OK
CheckCheck R,G,B signal
CVBS singal Lineat IC512 pin19,20,21
& IC512
OK
Check / Replace
CPT Board component |