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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
start
Battery Voltage , higher
Than 3.2V?
Change or Charging
The Battery
Press PWR key
Keypad LED ON ?
TP3004 high to low
When key press ?
Change the main board
Follow the LED
trouble shoot
Check open pattern of
Power botton
Check Dome sheet
YES
YES
NO
NO
NO
NO
VREG_MSMC_1. 2V,
VREG_MSMP_2.7V,
VREG_MSME_1. 8V,
VREG_TCXO_2. 85,
VREG_MSMA_2. 6V power up ?
TP3004 high to low
When key press ?
Change the main
board
Check the TCXO and
SLEEP CRYSTAL
NO
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Summary of Contents for KF310
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