Contents
1. Introduction ......................................................................................... 1
The Astra 1220U..........................................................................................................1
Scanner Specifications ................................................................................................1
2. Electronic Systems ............................................................................. 3
Astra 1220U Electronic Systems .................................................................................3
The Opto-Mechanical ..................................................................................................4
Function Block Diagram ..............................................................................................5
VIDEO Test Timing Diagram (Pixel)............................................................................6
VIDEO Test Timing Diagram (Line).............................................................................6
CCD Test Timing .........................................................................................................7
Component Connectors...............................................................................................8
3. Component Assemblies .................................................................... 16
Component Assembly Overview ...............................................................................16
Component Replacement Kits...................................................................................16
Astra 1220U Main Components ................................................................................21
4. Troubleshooting Guide..................................................................... 28
Maintenance Notice ...................................................................................................28
Cleaning and Repair Suggestions .............................................................................28
5. Environment vs. Performance ......................................................... 29
Overview ....................................................................................................................29
Shock and Vibration...................................................................................................29
Temperature ..............................................................................................................29
Humidity .....................................................................................................................30
Dust............................................................................................................................30
Aging..........................................................................................................................30
Appendix A ............................................................................................. 31
Board Outline Diagrams ............................................................................................31
Appendix B ............................................................................................. 33
Scanner Outline Diagram ..........................................................................................33
Appendix C ............................................................................................. 34
Component Replacement Kits for UTA-3A................................................................34
Transparency Adapter Main Components.................................................................37
Main Components and Outline Diagram ...................................................................43
iii
Summary of Contents for Astra 1220U
Page 1: ...Astra 1220U Color Scanner Service Manual UMAX Data Systems Inc 0898 e...
Page 4: ...Pin Assignment 44 iv...
Page 14: ...Service Manual AD Pin Assignment 10...
Page 15: ...Service Manual Motor and To CCD Board Pin Assignment 11...
Page 16: ...Service Manual Power Code Pin Assignment 12...
Page 17: ...Service Manual EPP to USB Bridge Pin Assignment 13...
Page 19: ...Service Manual 3797P 15...
Page 37: ...Service Manual Appendix B Scanner Outline Diagram 312 83 98 471 33...