Compaq CRT Monitor s7500 Service Guide - Page 18

HP S7500/MV7500/CV7500, Focus Adjustment, 2-4 Static Convergence Adjustments

Get Compaq CRT Monitor s7500 PDF manuals and user guides View all Compaq CRT Monitor s7500 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 18 highlights

HP S7500/MV7500/CV7500 3-d Adjust R.B. gain toget x=283±5, y=297±5; and Y=46±0.5FL 4 Full white ABL setting CONDITION Display image : full white pattern 4-a Set Brightness to cutoff and Contrast to maximum. 4-b. Adjust ABL to Y=31FL ± 0.5FL. 4-c. Check the white balance at 5FL and 28FL. 4-d. Repeat all the procedures in 4-2-2 section until the best white balance is obtained. 4-2-3 Focus Adjustment CONDITION Display image : "me" character pattern (68.68 kHz Mode) PROCEDURE 1. Set Brightness to cutoff and Contrast to maximum. 2. Adjust focus 1 at T402 (static focus VR) to make vertical line clear. 3. Adjust focus 2 at T402 (static focus VR) to make horizontal line clear. 4. Repeat above procedures to get best focus. 4-2-4 Static Convergence Adjustments Static convergence involves alignment of the red, blue and green lines in the center area of the display. Note : The monitor requires 30 minutes of warm-up time for convergence adjustment. CONDITION Display image : Crosshatch pattern Warm-up Time: 30 minutes PROCEDURE 1. Set brightness and contrast to display a well-defined pattern. 2. Ensure the convergence magnet rings are correctly positioned on the CRT. Figure 4-1. Convergence Magnets on the CRT 1 11 + CRT FRONT P 1) Setup Bolt 5) Spacer 9) Holder Page 16 10 9 8 76 5 4 3 2 2) Bow Magnet 6) 4-Pole Magnet 10) Band 3) Band 7) Spacer 11) Tabs 4) 2-Pole Magnet 8) 6-Pole Magnet

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
Page 16
HP S7500/MV7500/CV7500
3-d
Adjust R.B. gain to get x=283±5, y=297±5; and Y=46±0.5FL
4
Full white ABL setting
CONDITION
Display image : full white pattern
4-a
Set Brightness to cutoff and Contrast to maximum.
4-b.
Adjust ABL to Y=31FL ± 0.5FL.
4-c.
Check the white balance at 5FL and 28FL.
4-d.
Repeat all the procedures in 4-2-2 section until the best white balance is obtained.
4-2-3
Focus Adjustment
CONDITION
Display image : “me” character pattern (68.68 kHz Mode)
PROCEDURE
1.
Set Brightness to cutoff and Contrast to maximum.
2.
Adjust focus 1 at T402 (static focus VR) to make vertical line clear.
3.
Adjust focus 2 at T402 (static focus VR) to make horizontal line clear.
4.
Repeat above procedures to get best focus.
4-2-4 Static Convergence Adjustments
Static convergence involves alignment of the red, blue and green lines in the center area of the display.
Note :
The monitor requires 30 minutes of warm-up time for convergence adjustment.
CONDITION
Display image : Crosshatch pattern
Warm-up Time : 30 minutes
PROCEDURE
1.
Set brightness and contrast to display a well-defined pattern.
2.
Ensure the convergence magnet rings are correctly positioned on the CRT.
Figure 4-1. Convergence Magnets on the CRT
+
8
7
6
5
4
3
2
10
1
11
CRT
FRONT
P
9
1) Setup Bolt
2) Bow Magnet
3) Band
4) 2-Pole Magnet
5) Spacer
7) Spacer
9) Holder
6) 4-Pole Magnet
8) 6-Pole Magnet
11) Tabs
10) Band