LG KU580 Service Manual - Page 109

Charger Trouble Shooting

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4. TROUBLE SHOOTING 4.11 Charger Trouble Shooting DCIN_A NA BATT_GND R619 2012 1% R621 1/4W 0.1 0 R622 0 DRAIN1 S12 S11 DRAIN2 DCIN Q600 6 G1 3 G2 S21 S22 42 51 R623 47K R618 0 route as a differential pair Main Battery Charging Path • Charging Procedure - Connecting TA and Charger Detection - Control the charging current by AB3000 - Charging current flows into the battery • Check Point - Connection of TA - Charging current path - Battery • Trouble shooting setup - Connect TA and battery to the phone • Trouble Shooting Procedure - Check the charger connecter - Check the Charging current Path - Check the battery H1 VBAT_D E1 CHSENSE+ F2 CHSENSE- E2 CHREG F3 DCIO LGE Internal Use Only - 110 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

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- 110 -
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.11 Charger Trouble Shooting
•
Charging Procedure
- Connecting TA and Charger Detection
- Control the charging current by AB3000
- Charging current flows into the battery
•
Check Point
- Connection of TA
- Charging current path
- Battery
•
Trouble shooting setup
- Connect TA and battery to the phone
•
Trouble Shooting Procedure
- Check the charger connecter
- Check the Charging current Path
- Check the battery
2012
1%
1/4W
BATT_GND
route as a differential pair
R622
0
0
R619
0.1
R621
47K
R623
Q600
DRAIN1
DRAIN2
6
G1
G2
3
S11
1
S12
5
S21
2
S22
4
VBAT_D
H1
CHREG
E2
E1
CHSENSE+
F2
CHSENSE-
DCIO
F3
0
R618
NA
DCIN_A
DCIN
Main Battery Charging Path