LG AL-152W free download

File name AL-152W.pdf

CIRCUIT DIAGRAMS 1. Power(SMPS) Circuit Diagram 12VA No Power. No Power. BDP01 is defective. DP06 is defective. 12V dead. QP06 is defective. 9V dead. QP01 is defective. No Power. ICP02, 03 are malfunctioned. 5V dead. QP02, 03, 04 are defective. 3-21 3-22 2. SYSTEM CIRCUIT DIAGRAM IC502 is defective. Loading/Unloading operation is abnormal. IC504 is defective. ·Reset defect. ·Set Dead Q901~Q905 are defective. Each LED are not operate. X501 is defective. IC501 is not operate. X503 is defective. 1 Menu & F.OSD are not operate. 2 3 4 5 10 9 7 6 8 ES501, ES502, LD501 are defective. Tape remain dead. Auto REW is not operate. S501, S502, Q514, Q515 are defective. Audio stop occurs. WAVE FORM 3-23 3-24 3. A/V CIRCUIT DIAGRAM X301, X302 are defective. PB Color Signal disappear. 12 8 Q402,403,404 are defective. PB Audio failed. 11 13 16 7 2 9 2 14 1 4 10 3 6 IC301 Pin is defective. Auto Tracking is failed. 5 15 IC301 Pin IC301 Pins Q301, Q302 are defective. PB screen is bad. TL401 is defective. Audio & Screen is bad in Self-Record mode. IC301 Pin defective. , defective. PB and Recording is failed. defective. Record is failed. PB Color signal disappear. PB AUDIO REC AUDIO PB Y C PB Y PB C REC Y C REC Y REC C WAVE FORM 3-25 3-26