Power - LG -D802 Service Manual

3.11 Power

START
Battery voltage higher
than 3.5V ?
Yes
Press power key, TP1(R217) is LOW?
Yes
Check VREG level of PM8841
Yes
Check VREG level of PM8941
Yes
Check the clock (X6000)
19.2MHz?
Yes
Check that PON_RESET_N
(TP6000) is 1.8V
Yes
MSM_PS_HOLD(R6030)
is High?
Yes
Replace Main Board
LGE Internal Use Only
No
No
No
No
No
No
No
- 143 -
3. TROUBLE SHOOTING
Change / Charging the Battery
Check POWER_KEY (dome key)
Check the connection
of CN307 (Touch FPCB CN.)
U7000 (Check PM8841)
S1B(TP1_C7008) S2B(TP2_C4000)
U6001(Check PM8941)
Check the pins(X6000, R6042)
U6001(Check PM8941)
U3000(Check MSM8974)
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes