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Dell D1025TM - UltraScan 1000HS - 17" CRT Display User Manual

Dell D1025TM - UltraScan 1000HS - 17" CRT Display
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D1025TM
SPECIFICATIONS
D-1H
Picture tube
Video image area
Logical resolution
Physical resolution
Standard image area
Input signal
Video
Sync
0.25 mm aperture grill pitch
17 inches measured diagonally
90-degree deflection
(16" maximum viewing image)
Approx. 329.5 x 243 mm (w/h)
(13 x 9
5/8
inches)
Horizontal: Max. 1280 dots
Vertical: Max. 1024 lines
Horizontal: Max. 1024 dots
Vertical: Max. 768 lines
Approx. 312 x 234 mm (w/h)
(12
3/8
x 9
1/4
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
120W
100W, 341 BTU/h
Horizontal: 30 to 85 KHz
Vertical: 50 to120 Hz
100 to 120 V, 50/60 Hz, 1.8 A
220 to 240V, 50/60Hz, 1A
406 x 432 x 420 (w/h/d)
(16 x 17
1/8
x 16
5/8
inches)
Approx. 18.0 kg (39 lb 11 oz)
SERVICE MANUAL
Design and specifications are subject to change without notice.
D1025TM
COLOR MONITOR
D1025TM
US Model
Canadian Model
Japan Model
S. Hemisphere Model
Chassis No. SCC-L07D-A
R
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Dell D1025TM - UltraScan 1000HS - 17" CRT Display Specifications

General IconGeneral
Display TypeCRT
Screen Size17"
Maximum Resolution1280 x 1024
Vertical Refresh Rate50 - 160 Hz
Dot Pitch0.25 mm
Input SignalAnalog RGB
Input Connector15-pin D-sub
Viewable Size15.9"
Refresh Rate85 Hz
Horizontal Refresh Rate30 - 85 kHz
Power Consumption90 Watts
Dimensions (W x H x D)16.1" x 16.1" x 17.1"

Summary

SPECIFICATIONS

POWER SAVING FUNCTION

TIMING SPECIFICATION

SAFETY CHECK-OUT

LEAKAGE TEST

AC leakage limits and measurement methods for exposed metal parts to earth ground.

SECTION 1 GENERAL

Parts and Controls

Identification and explanation of the monitor's physical buttons and connectors.

Warning on Power Connection

Important warnings and precautions regarding power connection and usage.

The OSD (On-screen Display) System

Explanation of the On-Screen Display system for adjusting monitor settings.

Using the COLOR OSD

Adjusting monitor color temperature using the COLOR OSD.

Using the CENTER OSD

Adjusting picture centering using the CENTER OSD.

Using the ZOOM OSD

Enlarging or reducing the picture size using the ZOOM OSD.

Using the SIZE OSD

Adjusting the picture size using the SIZE OSD.

Using the GEOMETRY OSD

Adjusting the picture's geometry using the GEOMETRY OSD.

Resetting the Adjustments

Procedures for resetting specific or all monitor adjustments.

Additional Information

Troubleshooting

Common symptoms and their corresponding check items for problem resolution.

SECTION 2 DISASSEMBLY

2-1. CABINET REMOVAL

Step-by-step instructions for removing the monitor cabinet.

2-2. SERVICE POSITION

Procedure for placing the monitor in a service-safe position.

2-3. D and A BOARD REMOVAL

Instructions for removing the D and A circuit boards.

2-4. PICTURE TUBE REMOVAL

Detailed steps for safely removing the picture tube.

SECTION 3 SAFETY RELATED ADJUSTMENT

HV Regulator Check

Checking and adjusting the High Voltage regulator for safety.

HV Hold-Down Check

Verifying the HV hold-down circuit functionality.

Beam Protector Check (Software logic)

Checking the beam protector function using software logic.

B+ MAX. Check

Checking the maximum B+ voltage under load.

SECTION 4 ADJUSTMENTS

Landing Rough Adjustment

Initial adjustment of the landing alignment for the electron beam.

Landing Fine Adjustment

Precise adjustment of the landing alignment using specialized equipment.

Convergence Rough Adjustment

Initial adjustment of color convergence using magnets.

Convergence Fine Adjustment

Precise adjustment of color convergence using magnets and testers.

6 Pole Magnet Adjustments

Adjustments related to the 6-pole magnet for convergence.

Focus Adjustment

Adjusting focus (V) and focus (H) for optimal picture clarity.

Horizontal Convergence Adjustment

Digital adjustment of horizontal color convergence.

Vertical Convergence Adjustment

Digital adjustment of vertical color convergence.

5-2. CIRCUIT BOARDS LOCATION

5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS

A Board Schematic

Schematic diagram for the 'A' board of the monitor.

D Board Schematic

Schematic diagram for the 'D' board of the monitor.

SECTION 6 EXPLODED VIEWS

6-1. CHASSIS (US/CANADA MODEL)

Exploded view and parts list for the US/Canada chassis.

6-2. CHASSIS (JAPAN, S. HEMISPHERE MODELS)

Exploded view and parts list for Japan/S. Hemisphere chassis.

6-3. PACKING MATERIALS (FOR ALL MODELS)

List and diagram of packing materials used for all monitor models.

SECTION 7 ELECTRICAL PARTS LIST

CAPACITOR

List of capacitors used in the monitor, with part numbers and specifications.

CONNECTOR

List of connectors used in the monitor, with part numbers.

DIODE

List of diodes used in the monitor, with part numbers and specifications.

FERRITE BEAD

List of ferrite beads used in the monitor, with part numbers.

FILTER

List of filters used in the monitor, with part numbers.

TRANSISTOR

List of transistors used in the monitor, with part numbers and specifications.

RESISTOR

List of resistors used in the monitor, with part numbers and specifications.

FUSE

List of fuses used in the monitor, with part numbers and specifications.

IC

List of integrated circuits used in the monitor, with part numbers.

TRANSFORMER

List of transformers used in the monitor.

RELAY

List of relays used in the monitor.

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