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Troubleshooting
KI-1586A
Telecenter® IV
Troubleshooting
RAULAND-BORG CORPORATION
l
3450
West Oakton Street, Skokie, Illinois
60076-2951
l
(708) 679-0900
Table of Contents
DISPLAY PHONE DIAGNOSTICS
#73
Hardware I/O Diagnostics .................................................................................. 2
General Procedures
.............................................................................................
2
System Halting and Voltage Measurements
.......................................................
6
Line Type Tests
C.O. and PBX Trunks .................................................................................... 7
Speakers.. ........................................................................................................ 8
Phone Lines
................................................................................................... 9
Call-In Switches .............................................................................................. 10
#74 Call-in Sensitivity (RP2) Adjustment .................................................................. 11
#75 LLM Line Link Tests ............................................................................................ 12
COMPUTER AIDED DIAGNOSTICS
Computer Monitor Set-up ..........................................................................................
13
Serial Port Monitor Commands ...... ............................................................................ 14
Other Serial Port Output ............................................................................................ 15
TROUBLESHOOTING AND REPAIR
TCN Find-It Fix-It Procedures
Time Saving Hints and Suggestions
...................................................................
16
System Won’t Run or Locks-up ............................................................................ 16
System Will Not Program
.....................................................................................
16
Phone Won’t Ring ................................................................................................ 17
Time Tones Do Not Work
...................................................................................
17
All-Page Problem .................................................................................................. 17
Phone Rings-back Upon Hanging-up
.................................................................
18
System Misdials or Won’t Allow Access (Intermittent) ...................................... 18
Talk Path Noisy or Dead (Intermittent)
.............................................................
18
Crosstalk On Lines
...............................................................................................
18
Phone Rings When Call Should Go To Attendant
........................................ ..1 ...
19
False Call-ins After All-Call or Time Tone ............................................................
19
Supplementary Procedures
Finding Duplicate Numbers ................................................................................ 20
Phone Line TAP Functions (Transfer Capability and Cradle Switch Tests) ...... 20
Ground Resistance Measurement
.......................................................................
2 1
Loss Measurement ................................................................................................ 21
Lockout (Line, Link, or Receiver) ........................................................................ 22
Statistics ................................................................................................................
23
Loop Sense Measurement .................................................................................... 24
Line Rebalancing Procedure
................................................................................
25
Console Interface Adapter (TC4420) .................................................................. 27
LCD Display Problems (General) ........................................................................ 27
Single Link Staff Phone Problems (General)
.....................................................
28
Speaker Intercom Problems (General)
...............................................................
28
Interconnect Problems (General)
.......................................................................
29
QUICK REFERENCE CHART ..............................................................
30
1989
Rauland-Borg Corporation (Orig.
10/88; Rev. l/89)
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