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RAULAND-BORG CORPORATION
Table of Contents
DISPLAY PHONE DIAGNOSTICS
#73 Hardware I/O Diagnostics .................................................................................. 2
General Procedures ............................................................................................. . 2
System Halting and Voltage Measurements ....................................................... . 6
#74 4 Call-in Sensitivity (RP2) Adjustment .................................................................. 11
#75 LLM Line Link Tests ............................................................................................ 12
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) ......................................
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
Finding Duplicate Numbers ................................................................................ 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 ..............................................................
3450 West Oakton Street, Skokie, Illinois 60076-2951
l
C.O. and PBX Trunks .................................................................................... 7
Speakers.. ........................................................................................................ 8
Phone Lines ................................................................................................... . 9
Call-In Switches .............................................................................................. 10
Telecenter® IV
Troubleshooting
Troubleshooting
KI-1586A
(708) 679-0900
l
18
30
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Related Manuals for Rauland-Borg Telecenter IV
Summary of Contents for Rauland-Borg Telecenter IV
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Page 1: Table Of Contents
LCD Display Problems (General) ................ 27 Single Link Staff Phone Problems (General) ............28 Speaker Intercom Problems (General) ..............28 Interconnect Problems (General) ............... . 29 QUICK REFERENCE CHART .............. Rauland-Borg Corporation (Orig. 1989 10/88; Rev. l/89) Page 1 of 30... -
Page 2: Hardware I/O Diagnostics
(key 1, 2, or 3), version 102 software allows the proce- dure to remain invoked. This allows conducting tests involving several lines and/or permits hanging-up to release the receiver for traffic handling. Page 2 of 30 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. t/89) - Page 3 AA = Number of Active Lines in the system (0 - 64). The probability that using the diag- nostic will interfere with traffic increases directly with the number of lines in use. 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) Page 3 of 30...
- Page 4 Comments under [7] apply here also. Stop the 941 Hz tone. If the 941 Hz tone is off, the # DTMF tone will be produced and can be used for making measurements. 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) Page 4 of 30...
- Page 5 The uppermost key makes a connection or increments a numerical value and the lower key of a Link No. pair ends a connec- Line tion or decrements a numerical value. Decrement Rauland-Borg Corporation (Orig. 10/88; Rev. 1989 l/89) Page 5 of 30...
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Page 6: System Halting And Voltage Measurements
Emergency Call-in 200 mvolts Note: Use appropriate troubleshooting techniques and schematics to progressively define any problems in individual expansion modules, circuits, and components. Step 6. Remove the jumper from pin A:66. 6 of Page 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) -
Page 7: Line Type Tests C.o. And Pbx Trunks
+ will change to a -. If a special provision has been made for an external service request, the + will remain as long as the external service request is asserted. Page 7 of 30 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. t/89) -
Page 8: Speakers
HT. Note that each character set may be represented by either one of two different two-digit hexadecimal values. The H character represents the hook-switch status and the T character is the Call-in Switch status. #73 Hexadecimal Equivalents Table Page 8 of 30 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) -
Page 9: Phone Lines
Try replacing the line hybrid in the suspect LLM (TC4150). Step 4. Press [7] or [*] to go to the next physical number and return to Step 2 to continue testing. 9 of 30 1989 Page Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) -
Page 10: Call-In Switches
Repeat steps 3 and 4 for any untested switch positions, ending with the N displayed. Then, press [7] or [ *] to go to the next physical number and return to Step 2 to continue testing. Page 10 of 30 1989 Rauland-Borg Corporation (Chg. 10/88; Rev. t/89) -
Page 11: 74 4 Call-In Sensitivity (Rp2) Adjustment
Troubleshooting Call-in Sensitivity (RP2) Adjustment (#74) Summary: This test will prevent any new system activity from being initiated but will not interfere with calls and functions already in progress. Step 1. Dial #74 from the display phone, then enter the physical number of the Speaker Control board line to be tested and keep the phone off-hook. -
Page 12: Llm Line Link Tests
LLM Line Link Test (#75) Summary: This procedure is used to check out all the LLM functions for each line. These include: off- hook sense, audio to each link, DC, and ringing. This test will interfere with anyone using the system. -
Page 13: Computer Aided Diagnostics
COMPUTER AIDED DIAGNOSTICS Computer Monitor Set-up With its serial port connected to the TCIV CPU, directly or through a modem, a computer Summary: provides a powerful system analysis and troubleshooting tool. A dumb computer terminal or one that can act dumb is required for these procedures. (See for modem Drawing KM0873 connections.) -
Page 14: Serial Port Monitor Commands
00005 = h G will call a TCIV function that computes and reports the TCIV checksum value.) “return” Move the display cursor to the left margin of the next line and print the current reference address. Page Rauland-Borg Corporation (Orig. 10/88; Rev. 1989 l/89) -
Page 15: Other Serial Port Output
$p23_15 -pl4 Physical line 14 hung-up. Physical line 13 went from ringing to off-hook. +p13 !p12 Physical line 12 is AAI or DIL and has detected an incoming call. 1989 Rauland-Borg Page 15 of 30 Corporation (Orig. 10/88: Rev. l/89) -
Page 16: Time Saving Hints And Suggestions
Line 5 is best for a test phone because it is set-up as a display phone with each system reset. Step 2. Use #20 to clear display and insure display integrity. Step 3. Make sure the EEPROM jumper on the CPU is set to the ENable position. Page of 30 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) -
Page 17: Phone Won't Ring
Troubleshooting Phone Won’t Ring Check the A: and B: attributes and the architectural number for the line and verify they are Step correct (refer to the Programming Section). Step 2. Make sure pin 3 of the line hybrid is intact and the line hybrid is properly inserted. Note: For trunk lines, always cut pin of the LLM serving a... -
Page 18: Phone Rings-Back Upon Hanging-Up
TCIV lines from the typical 10% to 30% unbalance to 2% or less if the crosstalk is associated with key phones and cables. Balance is most important where long multi-pair cables are used, such as with key systems. Note: Page 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) 18 of 30... -
Page 19: Phone Rings When Call Should Go To Attendant
If the preceding steps don’t prevent the false call-ins, unplug the SC25 flat cable from the Step MIO. If this eliminates the false call-ins, plug the SC25’s in one at a time to find out which, if any are defective. Page 19 of 30 1989 Rauland-Borg Corporation @rig. tO/88; Rev. l/89) -
Page 20: Supplementary Procedures
TCIV’s hookflash time is too short (refer to Programming Section and check location code 64014=65) Step 3. Hang-up and repeat Step 1 and 2 five times in a row to assure repeatability. Page 20 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) -
Page 21: Ground Resistance Measurement
Troubleshooting Cradle Switch Test Dial a trunk and get outside dial tone. Step Attempt to send a hook-flash the cradle switch instead of the TAP button. The TAP Step 2. using circuit in the phone should extend the on-hook time sufficiently to allow disconnect. Step 3. -
Page 22: Lockout (Line, Link, Or Receiver)
Refer to the Progra mming Section and program Location Code 64012 (DTMF time) to lockout Lockout a defective receiver temporarily. The system can function with only one receiver until repairs are made. Page 22 of 30 1989 Rauland-Borg Corporation (Orig. LOW; Rev. l/89) -
Page 23: Statistics
Troubleshooting Statistics Summary: TCIV aid in analyzing traffic and in troubleshooting. Statistics are kept in Activity Statistics RAM at the following Location Codes which may be read and/or reset using the #98 function described in the Statistics may also be accessed by the Statistics Programming g Section. -
Page 24: Loop Sense Measurement
Loop Sense Measurement Summary: This test verifies that a line hybrid ( U 1) in an LLM (TC4 150) can supply enough current for a phone to operate properly and detect an off-hook condition; that is, when a minimum breaking amount of current is flowing. -
Page 25: Line Rebalancing Procedure
(Ul) is changed. Externally by wrapping one lead to the T pin and soldering or wire-nutting the other end to pin 71 (+ 12vdc). 25 of 30 Rauland-Borg Corporation Page (Orig. 10/88; Rev. l/89) - Page 26 Line Balancing Set-up Part of LLM Circuit 71(=12vDC) Listening Rl, R2 = 1OOK Matched within 1%...
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Page 27: Console Interface Adapter (Tc4420)
Troubleshooting Console Interface Adapter (TC4420) Summary: Test the interlace board communication function without the TC4400 Call Control Console connected using this procedure. The main program sends an ASCII M to the console every 15 to 20 seconds: This procedure determines if the Console receives and echoes this signal back through the Interface Adapter to the TClV. -
Page 28: Single Link Staff Phone Problems (General)
Using the #99 function, ensure ail A: attributes for the VCM are off. If B: attributes are on, access to the VCM speakers is restricted via the special page algorithm (refer to the Special Page Line Type Selection Chart in the Programming Section). 1989 Rauland-Borg Corporation (Orig. Rev. l/89) Page 28 of 30... -
Page 29: Interconnect Problems (General)
CO or PBX. If this test is unsuccessful, the problem is the phone company’s responsibility to repair. Note: If a “ground start” trunk, a 2 second ground on the ring lead is required to acquire dial tone. Page 29 of 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89) -
Page 30: Quick Reference Chart
I/O Diagnostic #ll-14 MTG Tone s AAI/DIL Incoming 57352 Initiate Display RP2 Adjust Call-ins 57354 LLM Diagnostic Cancel All Call-ins Outgoing Int. 57356 Trap Execute Review Call-ins Maximum Links 57358 Page 30 of 30 1989 Rauland-Borg Corporation (Orig. 10/88; Rev. l/89)