5.12 RTC trouble
- 93 -
5. Trouble shooting
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
START
Check TP1 is
high (1.0V)?
Check RTC_2V11
is high?(2.0v)
Assemble
Change BAT500
Change R500 or
Change U300,
Change Main PCB
Yes
No
No
Check All of BAT500 solder
Yes
2V 0.5mAh
BACKUP BATTERY
RTC_2V11
BAT500
NBL414R- F9J
S
B
C
L
0
0
0
1
7
0
1
|
b
a
tt
_
n
b
l4
1
4
r_
f9
j
0
0
5
R
K
7
.
4
BAT500
RTC_2V11
TP1
R500
RTC_2V11
TP1
Содержание KP500
Страница 1: ...Service Manual Model KP500 Service Manual KP500 Date October 2008 Issue 1 0 Internal Use Only ...
Страница 119: ... 120 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 127: ... 128 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 147: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 148 ...
Страница 169: ...Note ...
Страница 170: ...Note ...