LG CJS98F - No Lighting (Speaker Led)

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4. NO LIGHTING (SPEAKER LED)
YES
NO
YES
YES
Power On
Push the “LIGHTING” button.
Trun on the LED?
Check IC305.
Check Q3L01 ~ Q3L14.
Check speakers.
NO
NO
IC305
LED_5 V OK?
Check Q3L01 ~ Q3L14
LED_5 V.