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Gateway VX900T User Manual

Gateway VX900T
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VX900T
SPECIFICATIONS
D98
Picture tube
Video image area
Resolution
Standard image area
Input signal
Video
Sync
0.25-0.27 mm aperture grill pitch
19 inches measured diagonally
90-degree deflection
(18" maximum viewing image)
Approx. 365 X 274 mm (w/h)
(14
3/8
x 10
7/8
inches)
Horizontal: Max. 1600 dots
Vertical: Max. 1200 lines
Approx. 352 x 264 mm (w/h)
(13
7/8
x 10
1/2
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
CHASSIS
130 W
100 W
Horizontal: 30 to 96 KHz
Vertical: 48 to120 Hz
100 to 120 V, 50/60 Hz, 1.7A
220 to 240V, 50/60Hz, 1.2A
444 x 467 x 455 (w/h/d)
(17
1/2
x 18
1/2
x 18 inches)
Approx. 26 kg (57 lb 5 oz)
SERVICE MANUAL
Design and specifications are subject to change without notice.
VX900T
COLOR MONITOR
VX900T
US Model
Canadian Model
Chassis No. SCC-L20F-A
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Gateway VX900T Specifications

General IconGeneral
Screen Size19 inches
Panel TypeTN
Contrast Ratio700:1
Response Time5 ms
Horizontal Viewing Angle160 degrees
Vertical Viewing Angle160 degrees
ConnectorsVGA

Summary

Power Saving and Diagnostics

Power Saving Modes and Indicators

Describes the monitor's power saving states, consumption, and indicator lights.

Self Diagnosis and Failure Indicators

Explains how the self-diagnosis function indicates failures via LED patterns.

Safety Compliance and Testing

Post-Repair Safety Checks

Essential safety checks performed after servicing to ensure safe operation.

AC Leakage Test Procedure

Method and limits for testing AC leakage current for safety.

Critical Component Safety Warning

Warning about critical safety components requiring specific replacements.

General Operating Information

Power Connection Safety

Important warnings and advice regarding power cord connection and usage.

Advanced Monitor Settings

Resetting Monitor Adjustments

Procedures for resetting specific or all monitor adjustments to factory defaults.

Technical Details and Troubleshooting

Warning Messages and Screen Lines

Explanation of monitor warning messages and thin lines on screen.

Troubleshooting Common Issues

Guidance for resolving common problems like no picture or signal issues.

Troubleshooting Solutions

Picture Quality Troubleshooting

Solutions for fuzzy pictures, ghosting, color uniformity, and moire patterns.

Disassembly Procedures

Cabinet and Board Removal

Steps for removing the monitor cabinet and internal circuit boards.

Picture Tube Service

Picture Tube Removal

Detailed instructions for safely removing the picture tube assembly.

Anode Cap Handling

Precautions and procedures for safely removing and handling the anode cap.

Safety Related Adjustments

HV Regulator and Hold-Down Checks

Procedures for checking HV regulator and hold-down circuit functionality.

Beam Protector and B+ Max Checks

Verification of beam protector logic and maximum B+ voltage.

Advanced Convergence Adjustments

Digital Convergence Adjustment Process

Detailed steps for performing digital convergence adjustments.

Service Manual Corrections

Digital Convergence Adjustment Correction

Correction notice for the Digital Convergence Adjustment section of the service manual.

Detailed Convergence Adjustments

Area A Convergence Adjustment Steps

Steps for adjusting H-STAT, V-STAT, HMC, VMC, H-TILT, and XCV for Area A.

Area B and C Convergence Adjustment

Steps for adjusting H-TILT, XCV for Area B and static convergence for Area C.

Dynamic Convergence Adjustment Steps

Detailed steps for adjusting dynamic convergence across different screen areas.

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