LG LG9200 Service Manual page 62

4.1.8 Folder ON/OFF Trouble (1)
• Block Diagram
V_IO
R310
C315 C316
A3212EEH
U302
• Folder Operation
- There is a magnet at slide part to detect the
open-or-close status.
- If a magnet is close to the hall-effect
switch(U302), the voltage at pin 1 of U302
goes to 0V. Otherwise, 2.8V.
- This FOLDER_DETECT signal is delivered
to DBB, and then DBB Check the FOLDER
signal status.
4. TROUBLE SHOOTING
FOLDER
Calypso
U102
• Folder Signal Status
- L : Close (Magnetized)
- H : Open (Not magnetized)
- 63 -
U302
FOLDER
C315
V_IO