Mitel SX-200 DIGITAL Pabx Engineering Information Manual

Troubleshooting 
CONTENTS PAGE 
l.GENERAL ........................................ l-l 
Introduction ..................................... l-l 
Reason for Issue ................................. 
l-l 
2. PRIMARY TROUBLESHOOTING PROCEDURES ............. 2-l 
General ......................................... 2-l 
Procedure 1 - Machine Totally Inoperative ............. 2-3 
Procedure 2 - Critical Alarm ....................... 2-1.0 
Procedure 3 - Major Alarm ......................... 2-12 
Information...

Troubleshooting 
CONTENTS CONT’D PAGE 
APPENDIX B 
Part Numbers . m e . . . . . . . . . . . . . . . . . n . 0 . . . . . . . . e s . m . B-1 
APPENDIX C 
Troubleshooting Kit . . . . s . . . . s . . s D . . . . . . . . . . . s ~ ~ ~ ~ ~ C-l 
APPENDIX D 
Loop Current Measurement . . . 0 s . . . . . . . . . ~ ~ . ~ . 0 s . . * ~ D-l 
APPENDIX E 
Loop Start vs Ground Start Check Q m 0 a . . e . e . . . . s 0 m . . D ~ E-l 
APPENDIX F 
MitelRepairTag ~...~~~..~s.DD~~~.~.~I.~.D..D..D~~ F-l 
APPENDIX G 
Call...

Troubleshooting 
CHART 
3-9 
3-10 
3-11 
3-12 
3-13 
4-l 
4-2 
4-3 
4-4 
4-5 
4-6 
4-7 
4-8 
4-9 
4-l 0 
TABLE 
l-l 
2-l 
3-l 
3-2 
4-l 
4-2 
4-3 LIST OF CHARTS (CONT’D) 
TITLE PAGE 
Music on Hold/Pager Module Troubleshooting 
Procedures . . . . m . . . . m 0 . . . . . . 0 . . D s . . . . . . . . 3-35 
Analog JunctorKhannel Troubleshooting 
Procedures s . . . . . . . 0 D . n 0 . . 0 s . . D m m . s s m . . . m 3-39 
Attendant Console Troubleshooting Procedures . . . 3-43 
SUPERSET qTM Set Troubleshooting...

Troubleshooting 
FO R EMERGENCY 
TROUBbESHOOTING 
GO TO 
CHART 2-2 
ON P A G E 2-4 
Vi  

Troubleshooting 
IMPORTANT NOTICE 
A. CORRECT SYSTEM GROUNDING IS CRITICAL. GROUNDING 
INSTRUCTIONS CONTAINED IN SECTION MlTL9108-093-ZOO-NA, 
SHIPPING, RECEIVING AND INSTALLATION MUST BE ADHERED 
TO WITHOUT EXCEPTION. NOTE THAT THE SYSTEM MAY FUNC- 
TION ERRATICALLY, OR NOT AT ALL WITHOUT PROPER 
GROUNDING. 
B. THE FOLLOWING POINTS SHOULD BE CAREFULLY NOTED AND 
THE INSTRUCTIONS THEREIN STRICTLY OBSERVED : 
l Handle circuit cards by the edges only, and ensure that a 
ground strap is used. Card damage...

Troubleshooting 
1. GENERAL 
Introduction 
1.01 This Section is intended to provide maintenance personnel with 
a comprehensive guide to the detection, analysis and correction 
of malfunctions of the SX-200@ DIGITAL PABX with Generic 1000 or 
Generic 1001 software. The scope of this Section the covers the main 
switching machine, the central office interface, stations and special 
sets, and AC power (including grounding). The Section comprises trou- 
bleshooting procedures, which are used to isolate and...

Troubleshooting 
2. PRIMARY TROUBLESHOOTING PROCEDURES 
General 
2.01 Troubleshooting a malfunction in any complex electronic sys- 
tem is accomplished in a series of logical steps. This Section 
assumes the following basic steps in the troubleshooting of a mal- 
function: 
GATHERING of information 
CLARIFICATION of the problem 
CONFIRMATION of the problem 
ISOLATION of the problem 
CORRECTION 
DOCUMENTATION. 
Chart 2-l provides the basic primary troubleshooting flowchart 
for the SX-200@ DIGITAL PABX...

Troubleshooting 
CHART 2-l FLOWCHART - PRIMARY TROUBLESHOOTING PROCEDURES 
rl START 
r 
CHECK IF MACHINE 
IS TOTALLV 
INOPERATIVE 
OR CRITICAL 
ALARM TROUBLESHOOTING 
PROCEDURE 
I 1-2.041 
I 
I 
IS RAISED 
I 
I NO 
CHECK IF MAJOR VI?-2 
ALARM IS RAISED TROUBLESHOOTING 
I PROCEDURE 
CATEGORIZE PROBLEM INTO ONE OF THE 
FOLLOWING PROCEDURE GROUPS: 
Title 
Lines 
Trunks 
Universal Card 
QTMF Receiver 
:onsola Module 
#OH/Pager Module 
&dog Junctors 
4ttendant onsole 
E 
SUPERSET Sets 
Main Control Card 
Bay...

Troubleshooting 
PROCEDURE 1 - MACHINE TOTALLY INOPERATIVE 
0 
General 
2.04 When any switching machine is totally inoperative the prime 
requirement is the restoration of service to the system, or the 
part that has been affected. Chart 2-2 shows how to achieve this in 
the shortest possible time. Once service has been restored, the other 
procedures (see Chart 2-1) may be used to determine the cause of the 
failure. 
2.05 Note that if power fail transfer has occurred, or it is necessary 
to invoke...