LG SPD75A Service Manual

3-8
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Only for training and service purposes.
ONE POINT REPAIR GUIDE
2. NO SOUND
2-1. BLUETOOTH
2-1-1. Solution
Replace Bluetooth module/ MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Please check status of Wi-Fi / Bluetooth cable connection. (at CN209 and module)
2) Please check WIFI_3.45 V (at pin1, 7, 12 of CN209).
If Wi-Fi_3.45 V is OK, please check USB_DM_P1, USB_DP_P1 (pin10, 11).
If no signal, please replace MAIN board.
2-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
CN209
CN209

LG SPD75A Specifications

General

Brand	LG
Model	SPD75A
Category	Speaker System
Language	English