LG D410 Service Manual page 99

Battery voltage higher than 3.4V?
Press PWR Key R4105(TP1) high to low?
Check PM8226's VREG level?
CLOCK Check1 (TP2 : X4100?)
CLOCK Check1 (TP3 : R4110?)
PON_RESET_N (TP4 :TP4103) high?
PS_HOLD (TP5 :R4104) high?
Check Battery connector and +VPWR line filter
LGE Internal Use Only
START
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(CN9100,FL9100)
No
Change or charging the Battery
No
Check KEY (S/W9711)
No
Check U4100 (PM8226)
No
X4100 PIN Check
No
Check U4100 (PM8226)
No
Check U4100 (PM8226)
No
Check U4100 (PM8226)
- 99 - Copyright © 2014 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
Only for training and service purposes