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3. TROUBLE SHOOTING
3.9.3 Check Power signal (Battery connector, Power Key, PMIC Regulator)
3.9 Power Part
Image
Checking Flow
START
Battery voltage
higher than 3.4V? (TP9101)
Check POW ER_KEY S/W
Change or charging
the Battery
Press PW R Key
R9122 high to low?
YES
YES
YES
NO
NO
NO
Change PM8940
NO
Main Clock X4100 (19.2MHz)
Is it normal?
Change X4100 or PM8940
VSW _S5 level of
PM8952 is High? (L4204)
YES
YES
NO
Change MSM8940
MSM_PS_HOLD is High?
(R4101)
PWR Key (R9122)
TP3301 Check?
YES
NO
Change eMMC
END
Is phone booting?
NO
Change Main board
YES
Main Clock (X4100)
VSW_S5(L4204)
PS_HOLD(R4101)
eMMC(TP3301)
TP9101)
36
Содержание LG-M700TV
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