Sun Microsystems 360-1000-02 User manual

Pa.rt Number 800-1147-01
Revision: 50 of 7 January 1985
Moniterm Monitor (P /N 360-1000-02)
· Service Manual
for the
Sun-2 Family of Workstations
Sun Microsystems, Inc.,
2550 Garcia Avenue,
Mountain View,
California 94043
[phone]

Credits and trademarks
Sun Workstation, Sun-1, Sun-2,
SunStation, and Sun Microsyatema are
trademarks of Sun Microsystems, Incorporated.
UNIX is a registered trademark of Bell La.bora.tories.
Copyright C 1985 by Sun Microsystems, Inc.
This publication is protected by Federal Copyright Law, with all rights reserved. No pa.rt of this
publication may be reproduced, stored in a retrieval system, translated, transcribed, or transmit-
·-cd, in any form, or by any means manual, electric, electronic, electro-magnetic, mechanical,
chemical, optical, or otherwise, without prior explicit written permission from Sun Microsystems.
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Revision History
Revision
Date
Comment•
50
7 January 1985 First release of this Service Manual.
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Contents
Introduction ................................................................................................................................................. xi
Chapter 1 Sun-2 Moniterm Monitor ....................................................................................... 1-1
1.1. Goa.ls and Objectives........................................................................................................... 1-1
1.2. Safety Precautions................................................................................................................. 1-1
1.3. Monitor Description.............................................................................................................. 1-1
1.3.1. Horizontal Sync Signal............................................................................................. 1-4
1.3.2. Vertical Sync Signal .................................................................................................. 1-4
1.4. Monitor Signals ........................................................................................................................ 1-4
1.5. Picture Tube ............................................................................................................................. 1-8
1.6. Setting for the Correct Input Voltage ...................................................................... 1-9
1.6.1. 120/240 VAC Operation ......................................................................................... 1-10
1.6.2. 100/220 VAC Operation ......................................................................................... 1-11
1.7. AC Input Ratings ................................................................................................................... 1-12
1.8. Fuse Rating ........................................................................................................................... ..... 1-12
1.9. Operating Specifications .................................................................................................... 1-12
Chapter I Troubleshooting the Sun-2 Moniterm Monitor........................................ 1-1
2.1. Explanation of the Troubleshooting Flowchart .................................................. 2-2
2.1.1. Node and Off-Page Connectors .......................................................................... 2-2
2.1.2. Decision Boxes ............................................................................................................... 2-3
2.1.3. Asterisks .... :....................................................................................................................... 2-3
2.1.4. Checking Line Voltage ............................................................................................. 2-3
2.2. Notes to Troubleshooting ................................................................................................. 2-17
Chapter I How to Adjust the Moniterm Monitor .......................................................... 3-1
3.1. Tools Needed for Adjusting/Repairing the Monitor....................................... 3-1
3.2. Getting Inside the Monitor .............................................................................................. 3-2
3.3. Removing the Deflection Board .................................................................................... 3-4
3.4. Removing the Neck Board ............................................................................................... 3-4
3.5. Removing the Video Cable .............................................................................................. 3-5
3.6. Removing the Remote Brightness Potentiometer ............................................. 3-5
3.7. Putting the Monitor Back Together.......................................................................... 3-5
3.8. Adjustments to the Moniterm Monitor .................................................................... 3-6
3.8.1. Neck Board Adjustment ......................................................................................... 3-6
3.8.1.1. Brightne~ Adjustment: Pot R9 .............................................................. 3-6
3.8.2. Adjustment Potentiometers on the Deflection Board .......................... 3-6
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Chapter 4 Test Procedure for the Moniterm Monitor ................................................ 4-1
4.1. Applicable Documents......................................................................................................... 4-1
4.2. Definitions ................................................................................................................................... 4-1
4.3. Test Set-up ................................................................................................................................. 4-1
4.3.1. Test Configuration ...................................................................................................... 4-1
4.4. Test Procedure ........................................................................................................................ 4-2
4.4.1. High Voltage Adjustment ....................................................................................... · 4-2
4.4.2. Contrast Adjustment ................................................................................................ 4-3
4.4.3. Geometry Adjustment ............................................................................................. 4-3
4.4.4. Vertical Linearity Adjustment ........................................................................... 4-3
4.4.5. Brightness Adjustment ............................................................................................ 4-4
4.4.6. Pincushion and Barrel Distortion Check...................................................... 4-4
4.4.7. Ringing Test ................................................................................................................... 4-4
Appendix A Parts, Schematics and Component Locations...................................... A-1
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Tables
Table 1 Additional Documentation ............................................................................................. x1
Table 1-1 Two Configurations of the Moniterm Monitor Display ... ,,,,,,,,,,,,,,,,,,,,,,,, 1-2
Table 1-2 Visible and Invisible Lines in Configuration A ............................................. 1-2
Ta.hie 1-3 Visible and Invisible Lines in Configuration B ............................................. 1-2
Table 1-4 Timing Specifications for Display A and Display B Video
Images..................................................................................................................................... 1-4
Table 1-5 Voltage Levels for ECL and TIL Video Logic............................................ 1·6
Table 1-6 Maximum Ratings for AC Supply Voltage ...................................................... 1-12
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Figures
Figure 1-1 The Sync Signals: Visible and Invisible Parts of Waveform.............. 1-3
Figure 1-2 Front Porch, Ba.ck Porch and Sync Portions of the Blanking
Signal ..................................................................................................................................... 1-3
Figure 1-3 Monitor Block Diagram, Part 1 ............................................................................ 1-5
Figure 1-4 TIL/ECL Video Jumper.......................................................................................... 1-6
Figure 1-5 Horizontal and Vertical Sync Signals on the Deflection Board........ 1-7
Figure 1-6 Monitor Block Dia.gram, Part 2 ·················································---------- 1-7
Figure 1-7 Low and High Voltage Power Supplies............................................................ 1-8
Figure 1-8 AC Power, Voltage Select, and Fuse ................................................................ 1-9
Figure 1-9 120/240 VAC Select ..................................................................................................... 1-10
Figure 1-10 100/220 VAC Select .................................................................................................. 1-11
Figure 2-1 Connector, Low Voltage Power Supply .......................................................... 2-17
Figure 3-1 Removing the Chassis Cover .................................................................................. 3-2
Figure 3-2 Removing the Perforated Metal Cover ........................................................... 3-3
Figure 3-3 Video Geometry Alignment Fixture (VGAF) .............................................. 3-9
Figure 3-4 Adjustment Potentiometers on the Deflection Board ............................ 3-10
Figure 4-1 What Ringing Looks Like ......................................................................................... 4-5
Figure A-1 Major Subassemblies of the Monitor................................................................ A-2
Figure A-2 Grounding Strap Locations: Deftection and Neck Boards ................. A-3
Figure A-3 Deflection Board Component Locations ......................................................... A-4
Figure A-4 Neck Board Component Locations ............................ , .......... ____ ..................... A-5
Figure A-5 Deflection Board Schematic ................................................................................... A-6
Figure A-6 Neck Board Schematic .............................................................................................. A-7
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