-32-
Y signal (LCA4)
Pb signal (LCA5)
C. When
“
No Signal
”
in Y/Pb/Pr signal (Component)
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 (COMP1_Y): LCI27(Bottom, Main) near JP3, Second pin of ICI2, 4th pin of
ICI2, 19th pin of ICI3, LCA4(Top, Main) near ICA10
- Main TP (COMP1_Pb): LCI22(Bottom, Main) near JP3, 5th pin of ICI2, 7th pin of ICI2,
14th pin of ICI3, LCA5(Top, Main) near ICA10
- Main TP (COMP1_Pr): LCI18(Bottom, Main) near JP3, 11th pin of ICI2, 9th pin of ICI2,
21th pin of ICI3, LCA3(Top, Main) near ICA10
- Main TP (COMP2_Y): LCI26(Bottom, Main) near JP3, Third pin of ICI2, 4th pin of ICI2,
19th pin of ICI3, LCA4(Top, Main) near ICA10
- Main TP (COMP2_Pb): LCI21(Bottom, Main) near JP3, 6th pin of ICI2, 7th pin of ICI2,
14th pin of ICI3, LCA5(Top, Main) near ICA10
- Main TP (COMP2_Pr): LCI17(Bottom, Main) near JP3, 11th pin of ICI2, 10th pin of
ICI2, 21th pin of ICI3, LCA3(Top, Main) near ICA10
=> If all TP signal does not appear, replace MAIN PCB.
Summary of Contents for DLP-2612
Page 7: ...7 3 2 POWER BLOCK DIAGRAM...
Page 34: ...34 G Signal LCA4 B Signal LCA5 Clock RCA10 near ICA10...
Page 36: ...36 Horizontal sync RCD6 near ICD10 Vertical sync RCD7 near ICD10...
Page 45: ...45 COMPONENT PICTURE REMARK 1 LCD MODULE 2 MAIN BOARD 3 SUB BOARD 4 POWER BOARD...
Page 46: ...46 COMPONENT PICTURE REMARK 5 RONT MASK 6 BACK COVER 7 STAND 8 ALL CONNECTROR CONNECTION...
Page 60: ...11 SCHEMATIC DIAGRAM 62...
Page 61: ...SCHEMATIC DIAGRAM 63...
Page 62: ...SCHEMATIC DIAGRAM 64...
Page 63: ...SCHEMATIC DIAGRAM 65...
Page 64: ...SCHEMATIC DIAGRAM 66...
Page 65: ...SCHEMATIC DIAGRAM 67...
Page 66: ...SCHEMATIC DIAGRAM 68...
Page 67: ...SCHEMATIC DIAGRAM 69...
Page 68: ...SCHEMATIC DIAGRAM 70...
Page 69: ...SCHEMATIC DIAGRAM 71...
Page 70: ...SCHEMATIC DIAGRAM 72...
Page 71: ...SCHEMATIC DIAGRAM 73...
Page 72: ...SCHEMATIC DIAGRAM 74...
Page 73: ...SCHEMATIC DIAGRAM 75...
Page 74: ...SCHEMATIC DIAGRAM 76...
Page 75: ...77 10 1 DLP 3212APSB...
Page 76: ...78 10 2 DLP 2612APSB...
