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KG70C
Checking Flow
Checking Flow
SETTING : Connect the only charging adaptor (TA) to the phone
SETTING : Connect the only charging adaptor (TA) to the phone
START
START
YES
YES
The Battery is
The Battery is
Normal?
Normal?
YES
YES
Voltage at Pin#36
Voltage at Pin#36
Of U400 = 5.00V?
Of U400 = 5.00V?
YES
YES
Voltage at Pin#37
Voltage at Pin#37
. .
.
Of U400 = 4.2V ?
Of U400 = 4.2V ?
YES
YES
Is the battery
Is the battery
Charged?
Charged?
YES
YES
Good
Good
NO
NO
Change the Battery
Change the Battery
NO
NO
Change the U603
Change the U603
Vo ltage at Pin#12, 13
Vo ltage at Pin#12, 13
Of CON 600 = 5.00V?
Of CON 600 = 5.00V?
The charging adaptor (TA)is out of
The charging adaptor (TA)is out of
order. Change the charging adaptor.
order. Change the charging adaptor.
NO
NO
Change the
Change the
U400
U400
NO
NO
Change the main board
Change the main board
51
NO
NO
Re-soldering Pins Of
Re-soldering Pins Of
CON600
CON600
YES
YES
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