LG KG280 Service Manual - Page 79
Voltage of VEXT at U101
![]() |
View all LG KG280 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 79 highlights
4. TROUBLE SHOOTING CHECKING FLOW START Is there the magnet in the Slide side? YES Voltage at pin 1 of U304 = 2.8V? YES NO NO Place the magnet properly. Voltage of VEXT at U101 = 2.8V? YES Resolder U304 NO Replace U101 Open Slide. NO Voltage at pin 1 of U304 =2.8V YES Close folder. NO Voltage at pin 1 of U304 = 0V YES NO Does it work properly? YES Slide on/off will work properly Resolder and U304 Replace U304 Change Main board LGE Internal Use Only - 80 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
![](/manual_guide/products/lg-kg280-service-manual-8d3db4f/79.png)
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 80 -
Slide on/off will
work properly
Is there the magnet
in the Slide side?
START
Replace U101
Place the magnet properly.
NO
YES
Voltage at pin 1
of U304 = 2.8V?
YES
NO
Voltage of VEXT at U101
= 2.8V?
NO
Resolder U304
YES
Open Slide.
Voltage at pin 1 of U304
=2.8V
Resolder
and U304
NO
YES
Close folder.
Voltage at pin 1 of U304
= 0V
YES
Replace
U304
NO
Does it work properly?
YES
Change
Main board
NO
CHECKING FLOW