#Chinatv

Описание к видео #Chinatv

CHINA TV 14"NORMAL PCB
MAIN IC 8895CSNG 7DN5
EHT BSC25-T1010A
VERTICAL IC LA78040
SOUND IC TDA2003
STR W6553A
AFC problem.
1.Power on/Check green cathode voltage------ok.
2.Check red cathode voltage------ok.
3.Check blue cathode voltage------ok.
4.Check red drive voltage.
5.Check green drive voltage.
6.Check blue drive voltage.
7.Power off/Check AFC line----AFC line damage.
8.Check AFC supply line resister---burnt.
9.Open R405(1.5K)resister.
10.Clean the resister point.
11.set new resister 1.5K.
12.Clean the AFC with blade.
13.Power on/Then-----

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