Copyright ⓒ 2017 LG Electronics. Inc. All right
reserved. Only training and service purposes
LGE Internal Use Only
3. TROUBLE SHOOTING
Checking
DC-DC(QFE2101) Block
3.3 DC-DC(QFE2101) Block
Image
Checking Flow
BTM
TP2
Circuit Diagram
TP1
START
NO
NO
YES
YES
Check TP2.
0.5V≤TP2≤4.2V ?
Check TP1.
VPWR is OK?
The cause might be in logic part.
Refer to logic trouble shoot.
Check U1601 Physical Damage
or soldering condition.
Change the Main Board
TP1
TP2
14
Содержание LG-M700TV
Страница 115: ...P N FLXXXXXXXX X X 115 ...