Charging Part - Samsung SGH-E690 Service Manual

Gsm telephone
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9-3. Charging Part

Abnormal charging part
Check the U605 pin 1
Check the U605 pin 10
Yes
> 4.9V
Yes
U605 pin 5 = "L"?
Yes
U605 pin 3 = "L"?
Yes
≒ 4.2V
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Check the the circuit related to
No
Resolder or replace U605
No
Check the circuit related to
No
Resolder or replace U605
9-7
Flow Chart of Troubleshooting
V_EXT_CHARGE
AUX_ON signal

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