LG LX-U250D Service Manual page 20

USB PART
TURN ON USB
"CHECKING "OR
"USB" DISPLAY
CHECK
READING OK CHECK
IF PLAY, AUDIO
OUTPUT CHECK
OK
CONNECTOR CHECK ( PN805, PN806, PN810 )
CHECK POWER SUPPLY CIRCUIT( PN806 )
CHECK MICOM INTERFACE CIRCUIT( PN805 )
CHECK PN810 1 PIN : 5V
CHECK PN810 PIN 2(D-), 3(D+)
CHECK OTI6888 (IC805)
CHECK LC78690W (IC801)
CONNECTOR CHECK (PN806)
- 2-13 -