LG S35A1-W Service Manual

3-4
ONE POINT REPAIR GUIDE
3. NO SOUND (PORTABLE FUNCTION)
3-1. Solution
Replace IC400 or portable jack (JK504).
3-2. How to troubleshoot (Countermeasure)
1) Please check the soldering status of JK504
2) Please check L501, L502 (PORT_L, PORT_R signal) of portable jack (JK504).
If you cannot find input signal, replace JK504.
3) If you can find input signal, check pin13, 14 of IC400.
4) If you can’t find signal at pin13, 14 of IC400, replace IC400.
3-3. Service hint (Any picture / Remark)
< USB board bottom view >
< MAIN board top view >
JK504
JK504
L501
L501
L502
L502
IC400
IC400

LG S35A1-W Specifications

General

Brand	LG
Model	S35A1-W
Category	Speaker System
Language	English