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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
6. Trouble shooting
- 96 -
START
Input Signal
TP1
is Low(0V)?
Output Signal
TP2
is Low(0V)?
Assemble
Replace Main Board
Replace U203 of
main -board
Yes
Check Speaker tension and
Contacts are clear.
No
No
Replace Main PCB
Receiver Signal
TP3
High(1.6V)?
Replace Receiver
Check the soldering status
Of U203 of main -board
Yes
OutputSignal
(C240, C241)
Input Signal
(C230,C239)
Receiver Signal
(C102, C103)
TP
TP
2
TP
TP
1
TP
TP
3
3
Содержание KC550
Страница 1: ...Date May 2008 Issue 1 0 Service Manual Model KC550 Service Manual KC550 Internal Use Only ...
Страница 129: ... 130 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 155: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 156 ...
Страница 182: ...Note ...
Страница 183: ...Note ...