LG LAS855M - Wi-Fi FUNCTION DOESNT WORKING

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ONE POINT REPAIR GUIDE
19. Wi-Fi FUNCTION DOESN’T WORKING
19-1. Wi-Fi module
19-1-1. Solution
Replace Wi-Fi module or IC501 on MAIN board.
(This chip is so hard to change IC, so we recommend to change PCB.)
19-1-2. How to troubleshoot (Countermeasure)
1) Check Wi-Fi cable state.
2) If it is OK, change the Wi-Fi module, and try again.
3) If it still doesn’t work, check WIFI_3.4VA (L317).
4) If It is abnormal, check 3.4 VA of IC303 pin1.
 If it is weird, follow the stage 4-1 (IC309).
5) If it is OK, check the state of WIFI_CTRL (R315). It should be high.
6) If it still doesn’t work, follow the stage 11-1 (IC501).
19-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
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