LG LAS950M - Page 41

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ELECTRICAL TROUBLESHOOTING GUIDE
OPTICAL FUNCTION
Wi-Fi FUNCTION
JK201, JK204
status OK ?
CN200
status OK?
Replace JK201, JK204.
Replace CN200.
YES
YES
YES
YES
YES
YES
NO
NO
JK201, JK204 pin3
3.3 VA OK?
CN200 pin6
WIFI_ 3.5VA OK?
OPT1/2_DET
OPT1/2_SPDIF signal
OK?
Wi-Fi Connection is OK?
Check L203 & 3.3 VA line.
Check WIFI_3.5VA line.
Check OPT_SPDIF & OPT_DET signal line.
Check Wi-Fi cable connection.
NO
NO
NO
NO
Replace IC501.
Replace Wi-Fi module.
YES
YES