LG MCV903 - USB PART CHECK

4-2
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. USB PART CHECK
NO
NO
CHECK CN603
Plug- in USB Device
YES
Display “READ”
YES
Display “NO FILE”
YES
YES
YES
Display “NO USB”
YES
Check USB_ 5V
NO
CHECK USB JACK( JK303)
YES
Check USB_ D+/ D-
(R863, R865)
NO
Replace IC801
Check IC801
PIN 116, 117)
USB FUNCTION
CHECK USB AUDIO FILE
IN USB DEVICE (MP3,
WMA FILE IS PLAYABLE)