Dell D825TM User Manual

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D825TM
SPECIFICATIONS
Picture tube
Video image area
Logical resolution
Physical resolution
Standard image area
Input signal
Video
Sync
0.25 mm aperture grill pitch
15 inches measured diagonally
90-degree deflection
(14" maximum viewing image)
Approx. 286.5 x 214 mm (w/h)
(11
3/8
x 8
1/2
inches)
Horizontal: Max. 1280 dots
Vertical: Max. 1024 lines
Horizontal: Max. 1024 dots
Vertical: Max. 768 lines
Approx. 270 x 202 mm (w/h)
(10
3/4
x 8 inches)
Analog RGB (75 ohms typical)
0.7 Vp-p, Positive
External HD/VD, Composite
Polarity Free TTL
Video Composite (Sync on Green)
0.3 Vp-p, Negative
Power Consumption
Maximum
Nominal
Deflection frequency
AC input voltage / current
Dimensions
Mass
110W
80W, 273 BTU/h
Horizontal: 30 to 70 KHz
Vertical: 50 to120 Hz
100 to 120 V, 50/60 Hz, 1.8 A
220 to 240V, 50/60Hz, 1A
368 x 392 x 384.5 mm (w/h/d)
(14
1/2
x 15
1/2
x 15
1/4
inches)
Approx. 14.0 kg (30 lb 14 oz)
SERVICE MANUAL
Design and specifications are subject to change without notice.
D825TM
COLOR MONITOR
D825TM
N. Hemisphere Model
Equator Model
Chassis No. SCC-L06C-A
R
D-1
CHASSIS

Dell D825TM Specifications

General

Brand	Dell
Model	D825TM
Category	Monitor
Language	English

Summary

Power Saving Function

Timing Specification

Table detailing monitor timing specifications for various modes, including horizontal and vertical frequencies.

Safety Check-Out

Leakage Test

Procedure and specifications for testing AC leakage current from exposed metal parts to ground.

General

Parts and Controls Overview

Identification and description of the monitor's front and rear controls and connectors.

Adjustment Reset Procedures

Reset Specific Adjustment

Instructions for resetting individual OSD adjustments to their default factory settings.

Reset Current Input Signal Adjustments

Reset All Input Signal Adjustments

Additional Information

Monitor Warning Messages

Troubleshooting Monitor Issues

A guide to diagnosing and solving common monitor problems with symptom-based checks.

Advanced Information and Troubleshooting

Troubleshooting Common Issues

Addresses issues like control lock, centering, image distortion, fuzzy picture, flickering, ghosting, moire, and hum.

Disassembly Procedures: Picture Tube

Picture Tube Removal

Detailed procedure for safely removing the CRT picture tube.

Safety Related Adjustments

HV Regulator Check

Procedure for checking the High Voltage regulator, including B+ voltage checks.

HV Hold-Down Circuit Check

How to check the HV hold-down circuit by monitoring raster disappearance.

Beam Protector Check

Checks the beam protector circuit using software logic and voltage measurements.

B+ Maximum Voltage Check

Procedure for checking the maximum B+ voltage under specific input conditions.

Monitor Adjustments

Landing Rough Adjustment

Landing Fine Adjustment

Convergence Rough Adjustment

Convergence Fine Adjustment

Detailed fine-tuning of picture convergence using four-pole and six-pole magnets.

Monitor Adjustment Details

Digital Convergence Adjustment