Mitel SX-200 DIGITAL Pabx Engineering Information Manual

Troubleshooting 
CHART 2-2 
EMERGENCY TROUBLESHOOTING PROCEDURES 
ttep 
Action Description I Follow-up Remarks 
1 Check if the green ACTIVE LED on the Main Control Yes: l Go to step 9. 
Card front panel is flashing. No : l Go to step 2. 
2 Press the SYSTEM RESET pushbutton on the front l If the Main Control card 7-segment 
panel of the Main Control card. displays are blank, go to step 3; 
otherwise go to step 11. 
3 Check if the POWER ON LED on the Bay 2 power Yes: l Go to step 4. 
supply is on (ensure...

Troubleshooting 
CHART 2-2 (Cont’d) 
EMERGENCY TROUBLESHOOTiNG PROCEDURES 
12 
13 
18 Action 
:heck for the following error codes on the Main 
:ontrol card 7-segment displays: 
0 
E 
0 
E 
1 
E 
6 E E 
3 4 or 
E 
2 
E 
7 
E 
b. 
Sequence: E 
2 8 9 b b 
- ANY OTHER ERROR CODE - Description / Follow-up l Power down Bay 2, remove Main Control 
card, check flea clip W3 - re-install or 
replace as required; go back to step 2. 
l If problem persists, replace Main Control 
card. 
8 Power down Bay 2, remove Main...

Troubleshooting 
CHART 2-2 (Cont’d) 
EMERGENCY TROUBLESHOOTING PROCEDURES 
Action Description / Follow-u 
ns as required, then go 
that the lock latch is closed. 0 If problem persists, go to step 22. 
. Replace diskette if damaged. 
l If not damaged, attempt to reset system 
o If problem persists, go to step 23. 
o If problem persists, go to step 24. 
Yes: * Go to step 25. 
position (up, with respect to the board). No : * Put switch into ON position, go to step 2. 
* If problem persists, go to step 26....

g$T 
I.. . . . . . . . . . . 
no & 
On 
S3 0 
on 
4 no I 
no I 
Inn [I SVSTEi 
RESET 
El 
RESET 
ALARM 
0 
PLANE 
-IANSFf 
El 
A3 
II 
B3 0 
0 
0 
0 
0 
I IUMPER POSITIONS ARE 
NDICATED THIS WAY: 
0 TOP VIEW 
UOTE: ALL S3 SWITCHES 
MUST BE OFF 
(UP POSITION). 
PCTIVE 
WNOR ALARM 
MAJOR ALARM 
CRITICAL ALARM  

BAY 2 SLOT 3+4 BAY 1 SLOT 7t8 BAY 1 SLOT 5t6 
E4 (DG) 0 
r-l 
.0-e 523-0 0 ABC 
NOT USED 
Jl 
TEMP SENSE pf 
 NOT USED 
J17A 
10  
PCM TO 
15 
I  BAV 3 
20 
Jl7B 
25 PCM TO 
SAV 4 
30 
;: 
-I s 
E. 
CONSOLE 
MAINTENANCE 
DISK DRIVE PANEL 
. . . . 
POWER 
.,27 
lb 
DISK DRIVE 
DATA/ADDRESS 
0 ABC 
6 
Ill25 NOT USED 
0 SD 
11130 J3 *a* 
T+R TEST LINE 0 . . J41 OCUP 
El (EDGI 
8 
E2 (DGi 
0 
WY 2 SLOT lt2 BAY 1 SLOT 3t4 BAY 1 SLOT lt2 
NOTE: J19 = LOCAL RS-232 CONNECTOR 
ON MAINTENANCE PANEL 
521 I REMOTE...

Troubleshooting 
DX 
MODULE 
DRAM 
MODULE 
EPfiOM 
IC 
Figure 2-3 Main Control Card Module Locations 
Page 2-9 --’  

Troubleshooting 
PROCEDURE 2 - CRITICAL ALARM 
General 
--- 2.06 The raising of a critical alarm indicates a fault of actual or 
potentially catastrophic magnitude has occurred. Such an alarm 
is usually accompanied by activation of the automatic power fail 
transfer operation in a bay, bays, or throughout the entire system. 
Chart 2-3 shows the steps to be taken in analyzing a fault resulting in 
the raising of a critical system alarm. Refer to Section 
MITL9108-093-353-NA, General Maintenance...

Troubleshooting 
CHART 2-3 
CRITICAL ALARM TROUBLESHOOTING PROCEDURES - SYSTEM 
#tep Action Description / Follow-up Remarks 
1 Check if system has gone into power fail transfer Yes: l Go to step 2. see Note 
mode - examine maintenance log. No : l Force the system into power fail transfer 1 
mode via the maintenance panel 
switches, and leave it in this condition 
until the system is repaired. . 
2 Check if the Main Control card appears to be Yes: l Go to step 3. see Note 
functioning correctly - check...

Troubleshooting 
PROCEDURE 3 - MAJOR ALARM 
General 
2.07 A major alarm is raised when a serious degradation of service 
occurs. The major alarm is activated when a preprogrammed 
percentage of ports fail, or when any common control card fails. Refer 
to Section MITL9108-093-353-NA, General Maintenance Information 
for further details on alarms. Chart 2-4 outlines the troubleshooting 
procedures for both system-related major alarms and bay-related ma- 
jor alarms. 
Pa’ge 2-12  

Troubleshooting 
CHART 2-4 
MAJOR ALARM TROUBLESHOOTING PROCEDURES 
Action Description I Follow-up 
dentify the fault(s) which caused the major alarm 
ondition. 
1 l Use the SHOW ALARMS command. 
l If maintenance cannot be accessed, refer 
to the Main Control card troubleshooting 
procedures. 
l Go to step 2. 
2 lefer to the appropriate troubleshooting * If this leads nowhere, go to step 3. 
rrocedures as indicated by the alarm report. 
3 Check maintenance log for possible cause(s). l If this uncovers a...