Micom (Ic301) Check; P-Ctrl Check - LG LM-U2350A Service Manual

MICOM (IC301) CHECK

"P-SENS" CHECK
YES
"RESET" IC304 11 PIN CHECK
(HIGH © LOW © HIGH)
YES
IC304 VDD(17,46,72,90) PIN VOLTAGE
CHECK
YES
X301 VIBRATION SIGNAL CHECK
YES
IC301 CHANGE

P-CTRL CHECK

PN302 33 PIN "P-CTRL" CHECK (HIGH)
YES
CN710 5 PIN CHECK
YES
SMPS TROUBLESHOOTING CONSULT
NO
P-SENS TROUBLESHOOTING CONSULT
NO
Q303 STATE CHECK
NO
PN302 35 PIN +5.6V(MI) CHECK
NO
X301 CHANGE
SMPS TROUBLESHOOTING CONSULT
NO
MICOM IC304 STATE CHECK
NO
SMPS + MAIN BORD-TO-BORD CHECK
- 2-2 -
TR "Q303" CHANGE
MAIN CN710 6 PIN CHECK