#Chinatv

CHINA TV 21"NORMAL PCB
MAIN IC 8895CSNG7DN5
EHT BSC25-T1010A
VERTICAL IC LA78040
SOUND IC TDA2003
STANDBY PROBLEM
1.Power on/Check EHT supply voltage---ok.
2.Check H OUT transistor voltage------ok.
3.Check DRIVER transformer input voltage---ok.
4.Check DRIVER transformer output voltage-----ok
5.Check DRIVER transistor collector voltage-----ok.
6.Check memory ic supply voltage---ok.
7.Check memory IC SCL voltage---ok.
8.Check memory IC SDA voltage----ok.
9.Check cristal voltage---ok.
10.Check voltage main IC pin No.64(standby).
11.When it will be 0V(pin 64),Then standby release.
12.Power off/Open cristal (8Mhz).
13.Set new cristal.
14.power on/Again check pin No.64.----same voltage same result.
15.Power off/Open memory IC (24C08).
16.Set new memory IC.
17.Then---------