2. USB PART CHECK
USB FUNCTION
YES
Plug- in USB Device
YES
Display "NO USB"
YES
Display "READ"
YES
Display "NO FILE"
YES
CHECK USB AUDIO FILE
IN USB DEVICE (MP3,
WMA FILE IS PLAYABLE)
LGE Internal Use Only
NO
Check USB_ 5V
YES
Check USB_ D+/ D-
(R863, R865)
YES
Check IC801
(PIN 116, 117)
3-34
NO
CHECK CN603
NO
CHECK USB JACK( JK303)
NO
Replace IC801
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