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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4.18.2 Checking Switch Block power source
Before Checking this part, must check common power source(through AB3000) part
TP Command
MODE=0
SWRX=64,1024
Open?
High?
OK?
Resoldering
Check each mode
By TP command
Change the Board
No
No
No
Yes
Yes
Yes
Check soldering
(C105)
Check Soldering
It is necessary to check short condition.
Using Tester. Check 3 capacitors
ANTSW0(C105),ANTSW1(C113)
ANTSW2(C112)
Check ANTSW0(C105)
To check Switch input power source
Z3X-BOX.COM
Содержание KT520
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