Main Power - LG LPC-LM530A Manual

2. MAIN POWER

Main Power input (AC-cord in)
YES
LCD Display "Hello"
YES
Check the DC out of C813(+)
YES
Check the DC power output of IC801
pin3 +5.2V
YES
Check the power-output IC601
pin17,54,90?
YES
Check the DC +5.2V output of
Q808 "C"
YES
Check the Reset of IC601
pin11, Q601 "C"
YES
Check the Oscillation of X601,X602
YES
Replace the IC601
Check the Voltage-selector 110V/230V
(Duble Voltage only)
NO
Check the Fuse
Check the
D901,D902,D903,D904
NO
Check the ZD805 of +10V
Check the Q810 "E "
DC Power-output
Replace the IC801
NO
Check the D602, D604, D605
NO
Check the ZD803, Q807
NO
Check the Q601
NO
Replace the X601, X602
- 2-11 -
NO
YES
NO
Replace the ZD805
YES
NO
YES
Replace the Fuse
Replace the Q810