LG 32LG7000, Руководство по обслуживанию

Страница: 18 / 36

- 18 - Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Check video signal
1. Red : JK100 pin15 and C508
2. Green : JK100 pin11 and C511
3. Blue : JK100 pin7 and C514
4. CVBS : JK100 pin20 and C1909
Check AV1 Jack
1. SCART1 LINK check
->R148 or JK100 pin17
Check Video, Audio
Check Audio signal
1. R : JK100 pin2 and C679
2. L : JK100 pin6 and C692
Audio NG
Check App S/W.
If App S/W OK then replace IC603.
No problem
Check the input source of Equipment.
NG
Check App S/W.
If App S/W OK then replace IC600.
Check App S/W.
If App S/W OK then replace Main B/D.
NG
Check Digital AMP
1. VDD 16V : IC600 pin49~52, 32~35
VDD 1.8V : IC600 pin12,13,16
2. Mute check : IC600 pin25
No problem
Video NG
Replace IC100.
No problem
No problem
2-3. In case of abnormal display or sound when side AV1(SCART1) mode
Check video signal
1. CVBS : JK101 pin20 and C519
Check AV2 Jack
1. SCART1 LINK check
->R149 or JK101 pin17
Check Video, Audio
Check Audio signal
1. R : JK101 pin2 and C690
2. L : JK101 pin6 and C627
Audio NG
Check App S/W.
If App S/W OK then replace IC603.
No problem
Check the input source of Equipment.
NG
Check App S/W.
If App S/W OK then replace IC600.
Check App S/W.
If App S/W OK then replace Main B/D.
NG
Check Digital AMP
1. VDD 16V : IC600 pin49~52, 32~35
VDD 1.8V : IC600 pin12,13,16
2. Mute check : IC600 pin25
No problem
Video NG Check App S/W.
If App S/W OK then
Replace IC100. No problem
No problem
2-4. In case of abnormal display or sound when side AV2(SCART2) mode