LG LM-U2350A Service Manual page 15

IC701 9 ,14 ±9V CHECK
YES
IC701 10 , 13 INPUT SIGNAL CHECK
YES
IC701 5 ,17 OUTPUT SIGNAL CHECK
YES
OK
REC CHECK (Q252,Q202 ON :R273,R223 HIGH)
IC601 24PIN VOLTAGE INPUT CHECK
YES
IC401 EACH INPUTTUNER6,39.TAPE.
7.38.CD. 8.38.AUX.9.36 PIN SIGNAL
INPUT CHECK
YES
IC201 7,24 PIN INPUT CHECK
YES
IC201 10.21 PIN OUTPUT CHECK
YES
L203 2,3PIN CHECK
YES
IC202 14 PIN STATESTATE CHECK
YES
Q213.212 STATE STATECHECK
YES
DECK CHANGE
NO
SMPS TROUBLESHOOTING CONSULT
NO
REC INPUTCHECK CHECK
NO
INPUT LINE CHECK
NO
REC OUTPUTCHECK AFTER FAULTY IS ICCHANGE
NO
IC202 4PIN STATECHECK
Q205 BASE 0.6V CHECK
Q204 COLLECTOR LOW
- 2-8 -
NO
VOLTAGE CHECK CONSULT
NO
IC202 TROUBLESHOOTING CHECK
NO
Q203 CHANGE
NO
OK
Q204 CHANGE
L203 CHANGE