LG-TM250
CHAPTER 4. Trouble Shooting
1.When power isn't "Turn On
".
Batt. Volt < 3.6V
START
Change the main board
n
n
Change the Q401
Yes
Voltage at 3 Pin of Q401
Change the U403
Yes
Change the U407
Yes
Change the U404
Yes
n
Voltage at 6 pin of U403
Less than 2.7V
n
Voltage at 2,3,4 pin of U407
Less than 2.5V
Voltage at 2,3,4 pin of U404
Less than 1.8V
n
Change the D402
Yes
Voltage at 1 Pin of D402
n
Yes
Recharge Battery
LG Electronics Inc.
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