LG SPK5B-W Service Manual

3-7
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
< MAIN board top view >
ONE POINT REPAIR GUIDE
2. NO SOUND
2-1. BLUETOOTH
2-1-1. Solution
Replace MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Please check status of Bluetooth cable connection. (at CN104 and BT module)
2) Please check 3.3 VA (at pin1 of CN104).
If 3.3V is OK, please check BT_RST, DP_BT, DN_BT (pin10, 6, 7).
If no signal, please replace MAIN board.
2-1-3. Service hint (Any picture / Remark)
CN104
CN104
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LG SPK5B-W Specifications

General

Brand	LG
Model	SPK5B-W
Category	Speaker System
Language	English