Slide Up/Down Trouble Shooting - LG GD330 Service Manual

4.8. Slide Up/Down Trouble Shooting

Slide Operation scheme is shown below.
_ S L D I E _ D E T
C
2
Slide Magnet
4.8.1 Slide Operation(ON/OFF)
- There is a magnet to detect the slide status, opened or closed.
- If a magnet is down to the hall-effect switch(U501) the voltage at pin 1 of
U601 goes to 0V. Otherwise, 1.8V
- This Slide signal is delivered to DBB, and the status of Slide is reported.
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
U 6 0 1 B U 5 2 0 3 1 N V X
1 4
O U T V D D
2 3
G N D N C
6 1 0
7 p
Block Diagram (Folder On/Off)
Hall Effect Switch
(U601)
Slide Signal Status
L : Down (Magnetized) => Slide Down
H : Up (Not magnetized) => Slide Up
1 V 8 _ V O I
C 6 1 1 C 6 1 2
0 1 . u 2 7 p
1.8 V
High
0 V
Low
- 73 -
4. TROUBLE SHOOTING
Slide_DET
DBB(U101)
GPIO 18
(Y19 pin)
LGE Internal Use Only