LG D686 Service Manual page 76

Check MT6329 Core (L301)
Check MT6329 RTC CLOCK
Check Battery connector (CN601)
LGE Internal Use Only
START
Battery voltage
higher than 3.6V?
Yes
Press PWR Key
TP1: R706 high to low?
Yes
Voltage level?
Yes
Check MT6329 AP (L302)
Voltage level?
Yes
Check MT6329 IO (L303)
Voltage level?
Yes
Yes
Yes
END
No
Change or charging the Battery
No
Check POWER_KEY FPCB
No
L301 (Check MT6329)
No
No
L303(Check PM8058)
No
R322(Check MT6577)
No
Change MT6329
And Return to Start
- 76 - Copyright © 2013 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
L302(Check R322)
Only for training and service purposes