Daewoo DLP-2612, Руководство по обслуживанию

Страница: 33 / 77

-33-
Pr Signal (LCA3)
R signal (LCA3)
D. When
“
No Signal
”
in PC
1) First check if other inputs are working
=>If other inputs are not working, replace MAIN or SUB PCB
2) Checking waveforms with Color Bar Pattern (Using the oscilloscope)
- Main TP (R signal): LCI3(Top, Main) near D-Sub Jack, 7th pin of ICI3, 21th pin of ICI3,
LCA3(Top, Main) near ICA10
- Main TP (G signal): LCI4(Top, Main) near D-Sub Jack, 9th pin of ICI3, 19th pin of ICI3,
LCA4(Top, Main) near ICA10
- Main TP (B signal): LCI5(Top, Main) near D-Sub Jack, 11th pin of ICI3, 14th pin of
ICI3, LCA5(Top, Main) near ICA10
- Main TP (H-Sync): RCI26(Bottom, Main) near ICI4, 23th pin of ICI3, 22th pin of ICI3,
30th pin of ICA10, RCA9(Top, Main) near ICA10
- Main TP (V-Sync): RCI25(Bottom, Main) near ICI4, 13th pin of ICI3, 14th pin of ICI3,
31th pin of ICA10, RCA8(Top, Main) near ICA10
=> If all TP signal does not appear, replace MAIN PCB.
1024 X 768, 60Hz