Acer V551 - User Manual

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Acer V551 (new) CRT Monitor Service Guide
Chapter 3 Alignment Procedure
1
Confidence and Property
Table of Contents
0. Preparation for Alignment............................................................................................................. 2
1. B+ Adjustment (For function test station only) ............................................................................ 2
2. Geometry Adjustment................................................................................................................... 2
3. Background Adjustment................................................................................................................ 3
4. Foreground Adjustment ................................................................................................................ 3
5. Final Check ................................................................................................................................... 3
6. Focus Adjustment ......................................................................................................................... 4
7. Convergence Adjustment.............................................................................................................. 4
8. Power Saving Function Check...................................................................................................... 4
9. Geometry Specification for Production Line ................................................................................ 5
10. Eyelet parts.................................................................................................................................. 5
11. Touch-up parts ............................................................................................................................ 7
12. Glue parts.................................................................................................................................... 8
13. Wire Dressing parts..................................................................................................................... 9

Summary

Chapter 3 Alignment Procedure

1. B+ Adjustment

Adjusting the B+ voltage for functional testing.

2. Geometry Adjustment

Adjusting various geometric parameters like size, position, and tilt.

3. Background Adjustment

4. Foreground Adjustment

5. Final Check

Verifying all adjustments and performance after the alignment.

6. Focus Adjustment

Optimizing the sharpness and clarity of the displayed image.

7. Convergence Adjustment

Aligning the red, green, and blue electron beams for accurate colors.

Chapter 1 Engineering Specification

1 Electrical Characteristics

Specifications for power supply, input current, and signal interface.

2 Environment & Reliability

3 CRT Characteristics

4 Front of Screen

Specifications concerning screen geometry and image quality.

Chapter 4 Trouble Shooting

1. No output power

Troubleshooting steps for when the monitor does not power on.

2. No video

Troubleshooting steps for when no image is displayed on the screen.

3. No work

Troubleshooting steps for when the monitor is unresponsive.

4. Unstable vertical display

5. H-size adjust

6. H-linearity error

7. Brightness CKT check

Acer V551 Specifications

General

Screen Size	21.5 inches
Brightness	250 cd/m²
Aspect Ratio	16:9
Resolution	1920 x 1080
Connectivity	VGA, DVI
Input Ports	VGA, DVI