Open Close Ng - LG LX-U250A Service Manual

OPEN CLOSE NG

CONNECTOR LOCKING CHECK ( PN804 )
CHECK POWER SUPPLY CIRCUIT( PN805, PN806)
DEFECTIVE MAIN
PN 806 PIN 4 = 12V, PIN 5 = 6.2V
POEWR SUPPLY
PN805 PIN 1 = 5V
DEFECTIVE MICOM
CHECK VOLTAGE CHANGE OF OPEN CLOSE ,
AND IC802 INPUT VOLTAGE PIN 7, 8, 20 (=6.2V)
(PN805 PIN 2:BTL_MUTE, 14:OPEN 15:CLOSE)
DEFECTIVE
MECHANISM
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