Open Close Ng - LG LM-U1060 Service Manual

I OPEN CLOSE NG
CONNECTOR LOCKING CHECK
( PN803, PN804, PN814 )
CHECK POWER SUPPLY CIRCUIT ( PN805, CN806)
CN806 PIN1:12V, PIN2:6.3V, PN805 PIN8:+5V_AD
CHECK VOLTAGE CHANGE OF OPEN CLOSE IC803 INPUT VOLTAGE
PIN6:12V, PIN7:6.3V (PN805 PIN2:BTL_MUTE, 23:OPEN, 22:CLOSE)
CHECK VOLTAGE CHANGE LO+, LO- OF
IC803 (PN805 PIN23:OPEN, PIN22:CLOSE)
DEFECTIVE MECHANISM
DEFECTIVE MAIN POEWR SUPPLY
- 2-24 -
DEFECTIVE MICOM
DEFECTIVE IC803