LG LG9200 Service Manual page 41

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4. TROUBLE SHOOTING
Charging Trouble (3)
START
I/O Connect or (CN402)
is w ell-soldered?
Yes
Volt age at pin 4,6 of Q401
= 5.2 V ?
Yes
Q401, D402, R435
are w ell- so ld ered ?
Yes
Volt age acro ss R435
is about 10~ 100mV?
Reso ld er the CN402.
No
(pin 4,5:VCHG ,
pin 12,19:GND)
The TA is out of
No
or der.
Change the TA.
No
Reso ld er the Q401,
D402, R435.
No
Replace t he Q401,
D402
- 42 -
Charging is
operating properly.
Yes
No
Battery is O K?
Yes
The batte ry may
have p roblems.
Change the batte ry.

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