#Lgtv
Автор: Cosmic Electronics
Загружено: 2020-11-03
Просмотров: 16627
Описание:
LG TV 21"NOTMAL PCB
MAIN IC TDA11105PS/N3/3/AN4
EHT 6174V-6006M
VERTICAL IC TDA4863
SOUND IC TDA7297SA
STR W655
NO EHT PROBLEM
1.Power on/Check eht supply voltage----ok
2.Check 9V regulator output voltage---ok.
3.Check 5V regulator output voltage----ok.
4.Check 3.3V regulator output voltage----ok.
5.Check H output voltage----ok.
6.Check driver transformer output voltage---missing.
7.Check driver transformer input voltage---missing.
8.Check supply register R443(3.3K) input voltage----ok.
9.Check supply resistor R443(3.3K) output voltage missing.
10.Power off./Measure this registor---no reading.
11.Open this register.
12.Set new registor.
13.Then------
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