Quantum Data 801GX Manual de servicio descargar pdf (Pagina 23)

3M Multimedia Projector MP8670/8745/8755/8770 Adjustments

2324

22 14

3029

16 28

3117

32 33

1525

27 26

11 1918 10

6 4 8

2 1 3

7 5 9

V/6

V/3

V/6

H/6 H/6H/3 H/3

2324

22 14

3029

16 28

3117

32 33

1525

27 26

11 1918 10

6 4 8

2 1 3

7 5 9

V/6

V/3

V/6

H/6 H/6H/3 H/3

2324

22 14

3029

16 28

3117

32 33

1525

27 26

11 1918 10

6 4 8

2 1 3

7 5 9

V/6

V/3

V/6

H/6 H/6H/3 H/3

7. The next adjustments will be to balance the color

uniformity shown in gray at right.

8. Next, measure the color coordinates of point 2.

Adjust “R” and “B” of Point 2 until the color

coordinates are:

• x2 = x1 ± 0.01

• x2 = y1 ± 0.01

9. Measure and adjust the color coordinates of Points 3

through 9 in the same way.

• x3 - x9 = x1 ± 0.01

• y3 - y9 = y1 ± 0.01

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 59 60

Service Manual 1
Projector 1
1. Adjustments 3
(#1 Magnetic Long Shaft) 4
(3/16” or 1/4” Blade) 4
1-5. Cleaning LCD Panels 5
1-6. Convergence 6
1-6-1. Necessary Tools 6
1-6-2. Set Up Test Generator 6
1-6-3. Convergence Check 7
1-7. White Balance 8
1-7-1. Necessary Tools 8
1-7-3. Access Test Menu 9
1-7-4. S/H Timing Adjustment 11
2Alignment 12
1-7-6. Ghost Adjustment 13
Ghost is at a minimum 14
1-7-7. Flicker Adjustment 16
X = 0.280 ±± 0.005 19
Y = 0.340 ±± 0.01 19
Y = 0.345 ±± 0.01 20
X = 0.270 ±± 0.03 20
Y = 0.320 ±± 0.03 20
No. 2 = Y2 (lux) 22
No. 3 = Y3 (lux) 22
2. Disassembly/Reassembly 27
2-3-1. Remove Top Cover 28
2-3-2. Remove Main PWB Board 30
2-3-3. Remove Service Board 31
2-3-5. Remove RGB Input Board 33
Dichroic 34
2-3-7. Remove Lens Assembly 35
2-3-8. Remove Ballast 36
2-3-10. Remove DC Power Fan 38
2-3-11. Remove Exhaust Fan 39
3. Troubleshooting 40
3-3. Lamp Does Not Light 42
3 Fans have Rotation Sensors 43
3-4. No Picture – RGB Only 44
3-7. No Sound 47
RS232C PS/2 ADB Serial 48
4. Theory and Diagrams 52
4-2. Color Theory 54
4-2-1. Color 54
4-3. LCD Structure Theory 55
4-3-1. LCD Cells 55
4-3-3. Example Projection 55
4-4. Lamp Theory 56
4-5. Optical System Layout 57
4-6. Block Diagram 58
4-7. Wire Diagrams 59

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Quantum Data 801GX Manual de servicio Pagina 23

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