LG -P768 Service Manual page 69

Battery voltage higher than 3.5V?
Power Key is damaged?
Check TP1 high to low?
VCORE1_OMAP_MPU(TP6)
VCORE2_OMAP_IVAUD(TP7)
VSEL_VCORE3(TP8) up?
X701(TP9) : 32.768Khz
Change the main board
LGE Internal Use Only
START
Yes
No
Press PWR Key
Yes
VSEL_1.8V(TP2)
VSEL_VMEM(TP3)
VSEL_2.1V(TP4)
VSEL_1.29V(TP5)
Yes
Is clock OK?
Yes
No
Change or charging the Battery
Yes
Check the Power Key
No
Change the Power Key
No
Change the Main board
No
Change the TCXO and X-tal
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4. TROUBLE SHOOTING
Only for training and service purposes