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VR325
DEC VR325 Manuals
Manuals and User Guides for DEC VR325. We have
1
DEC VR325 manual available for free PDF download: Service Manual
DEC VR325 Service Manual (60 pages)
Monochrome Monitors
Brand:
DEC
| Category:
Monitor
| Size: 1.63 MB
Table of Contents
Table of Contents
3
About this Manual
7
Field Replaceable Units
7
Manual Organization
7
1 Overview
9
Product Description
9
Monochrome Monitor
9
Model Variations
10
Tools and Equipment
10
Recommended Spare Parts List
11
Recommended Spare Parts
11
2 Troubleshooting
13
Before You Start
13
Troubleshooting Procedures
14
Troubleshooting Tables
14
Blank Screen, no Video or Raster
15
Blank Screen, no Video, but Raster Is Present
17
Poor Display Quality
18
3 Removing and Replacing Frus
21
Introduction
21
Removing Cables from the Monitor
22
Removing the Rear Cover
23
Rear Cover Removal
23
Removing the Top Cover
24
Top Cover Removal
24
Field Replaceable Units (Frus)
25
Interconnect Cable
26
Disconnecting the Interconnect Cable
27
Power Supply Module
28
Removing the On/Off Switch Cable from the Power Supply
28
Removing the Power Supply
29
Discharging the CRT and Removing the Anode Cap
30
Discharging the CRT and Removing the Anode Cap
31
Deflection Module
32
Loosening the Captive Screw
33
Disconnecting Cables from the Deflection Module
34
Removing the Deflection Module
35
Video Casting Assembly
36
Removing Cables from the Video Casting
37
Removing the CRT Socket Connector
38
Removing the Video Casting
39
Crt/Chassis Assembly
40
CRT Disposal (Trained Service Personnel Only)
41
Crushing the Evacuation Point
43
Tilt-Swivel Base
44
Tilt-Swivel Base
45
4 Aligning the Video Monitor
47
Introduction
47
Monitor Controls and Indicators
48
User Controls and Indicator
49
Check Leds and Heater Filament
50
Displaying Screen Tests
50
Circle-Crosshatch Pattern
50
Monitor Adjustments
51
Using the Metric Measuring Tape
51
Deflection Adjustments
52
Raster Adjustment
52
Anode Voltage Adjustment
52
Height and Width Adjustments
52
Internal Controls
53
Using the Radiance Meter
54
Radiance Meter
55
Using the Radiance Meter
56
Cutoff Adjustment
56
GAIN Adjustment
57
GAIN, G2, and FOCUS (G4) Adjustments
57
VR315 and VR325 Documentation
59
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