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DEC VT1000 User Manual
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T
roubleshooting
49
T
able
3–6
(Cont.)
T
roubleshooting
the
T
erminal
Symptom
Probable
Cause
Solution
3
Image
Problems
(DECimage
1200)
No
image
or
a
partial
image
is
displayed.
Image
board
error
.
Run
the
image
hardware
test
(2.1.2).
If
the
image
hardware
test
fails,
replace
the
image
board
(4.3).
3
Section
numbers
follow
the
solution.
56
58
Table of Contents
Default Chapter
3
Table of Contents
3
About this Guide
7
1 Overview of the Terminal
9
The Video Terminal's Components
10
System Box
11
Monitor
14
Keyboard
15
Mouse
15
Operating Features
15
Window Sessions and Video Terminal Sessions
15
Network Communication Protocols
15
Customizing the Terminal
16
Overriding Passwords
16
Site Requirements
16
2 Testing
18
Terminal Self-Tests
18
Successful Power-Up Self-Tests
19
Level 0 Tests
19
Terminal Manager Window
20
Level 1 Tests
21
Menu-Driven Diagnostic Tests
22
Diagnostics Dialog Box Buttons
27
Displaying Video Alignment Patterns
28
Running Remote Diagnostic Tests over the Network (VMS Systems)
29
NCP Testing
30
NCP Tests
31
P3 Values to Specify Mode Bits
32
LANSA Testing
34
Testing the LAT
37
Testing on ULTRIX and UNIX Systems
38
Testing TELNET
38
Using Ping
41
3 Troubleshooting
43
Identifying the Terminal's Configuration
43
Troubleshooting by Flowchart
44
Terminal Troubleshooting Flowchart
45
Troubleshooting by Error Code
46
Troubleshooting Error Code
47
Screen Error Messages
48
Level 0 Screen Error Messages
48
Level 1 and Menu-Driven Screen Error Messages
49
Reading LED Error Codes
50
LED Error Reporting Method
50
Troubleshooting General Problems
52
Troubleshooting the Terminal
52
4 Removing and Replacing Frus
58
Cover
59
RAM Controller Board (VT1000 / VT1200 Only)
60
Image Board (Decimage 1200 Only)
61
SIMM Cards
62
ROM Board
64
System Logic Board
65
Power Supply
67
Fan
68
Keyboard, Mouse, and Printer
69
5 Starting a Session
70
Before You Start-Required Information
70
Starting a Session on a VMS System
71
Starting a Session on an ULTRIX or UNIX System
74
Ending a Session
76
Using Secure Reset
77
Displaying the Customize Image Dialog Box (Decimage 1200 Only)
79
Related Documents
81
A–1 Related Documents
81
Recommended Spares List
82
4
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DEC VT1000 Specifications
General
Brand
DEC
Model
VT1000
Category
Touch terminals
Language
English
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