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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4.15.1 Step 1
3.7V
OK?
Step 1
Check Point (C618) in
Power Source Block
To Check Power
source to Check if
main power source
input or not
Yes
No
Proceed to the
Step 2
3.7V
OK?
No
Yes
Check the Power Supply
Short?
No
Yes
Soldering Check Component
(CN600)
In Power Source Block
Check Point (CN600)
in Power Source Block
To Check Power source
Change Board
Check (C617 & CN600)
in Block
to check inner line
connection
From C617 to D601
Main Board (bottom side)
- Step 1 : VBAT Block
Main Board (bottom side)
- Power Source Block
Check point
(C617)
C103
C104
C213
Check point
(CN600)
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Summary of Contents for KT520
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