Inter-Tel GMX-48 INSTALLATION & MAINTENANCE Manual

INTER-TEL PRACTICES TROUBLESHOOTING 
GMX-48 INSTALLATION & MAINTENANCE Issue 2, May 1990 
FIGURE 6-5. KEYSET TROUBLESHOOTING CHART (CONT’D) 
SYMPTOM FCTIVE ACTION 
Cannot place off-hook 
voice announce calls Programming error 
Ensure that the system option for off-hook 
voice announce is enabled (PROGRAM- 
MING, page 5-24), that the called keyset 
is programmed to receive OHVA calls, and 
that the calling keyset is programmed to 
transmit OHVA calls (PROGRAMMING, 
page 5-49). 
User error The called...

TROUBLESHOOTING 
Issue 2, May 1990 INTER-TEL PRACTICES 
GMX-48 INSTALLATION & MAINTENANCE 
FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART __ 
x 
:’ 
SYMPTOM 
Single-line set completely 
inoperative. 
PROBABLE CAUSE 
APM and/or proper 
software not installed 
CORRF,CTlVE ACTION 
An APM and Intermediate or Advanced 
software are required for single-line set 
capability. 
Defective set Replace the single-line set. 
Defective cabling 
Check amphenol connector and station 
cabling. Refer to INSTALLATION,...

INTER-TEL PRACTICES 
GMX-48 INSTALLATION & MAINTENANCE TROUBLESHOOTING 
Issue 2, May 1990 
FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART (CONT’D) 
SYMPTOM 
PROBABLE CAUSE CORRECTIVE ACTION 
: 
_: 
: 
Single-line set will not ring 
for CO. or intercom calls. 
Talk battery is present. 
Calls can be placed. APM or single-line 
set ring straps not set 
for correct ringing 
If set for DC ringing, 
APM fuse may be 
defective Set the associated strap for the correct 
ringer (AC or DC). Refer to INSTAL-...

TROUBLESHOOTING 
INTER-TEL PRACTICES 
Issue 2, May 1990 GMX-48 INSTALLATION & MAINTENANCE 
FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART (CONT’D) 
SYMPTOM PROBABLE CAUSE 
CORRFCTIVE ACTION 
A group of AC ringer- 
equipped single-line sets 
will not ring for C.O. or 
intercom calls. T&lk battery 
is present. Calls can be 
placed. All stations are on 
the same APM. Ringer generator not 
attached to APM 
Defective cabling or 
miswired amphenol 
connector on the 
APM Defective connection or incorrect...

INTER-TEL PRACTICES TROUBLESHOOTING 
GMX-48 INSTALLATION & MAINTENANCE Issue 2, May 1990 
/ FIGURE 6-6. SINGLE-LINE SET TROUBLESHOOTING CHART (CONT’D) 
SYMPTOM CORWCTIVE ACTION 
Cannot place intercom call. 
Dial tone present, but 
reorder tone heard. User error 
Defective set 
Defective KCB Tly the call again. User may have dialed 
an invalid number. 
Replace the single-line set. 
Refer to page 6-2 to test the system 
voltages. Replace the control board if 
faulty. 
Cannot break C.O. dial 
tone Defective...

TROUBLESHOOTING 
Issue 2, May 1990 INTER-TEL PRACTICES 
GMX-48 INSTALLATION & MAINTENANCE 
FIGURE 6-7. DSS/BLF UNIT TROUBLESHOOTING CHART 
SYMPTOM 
DSWBLF inoperative. No 
LED indication present 
while key is pressed. 
PROBABLE CAUSE 
Defective cabling 
CORRFCTIVE ACTION 
Ensure 30VDC present at the DSS/BLF 
modular jack and polarity is correct. 
Check for loose or open connections. 
Refer to Figure 3-l on page 3-7 in 
INSTALLATION. 
Defective DSS/BLF Unit 
Replace the DSS/BLF Unit. 
Defective station...

‘. 
INTER-TEL PRACTICES 
GMX-48 INSTALLATION 8z MAINTENANCE TROUBLESHOOTING 
Issue 2, May 1990 
FIGURE 6-7. 
DSS/BLF UNIT TROUBLESHOOTING CHART (CONT’D) 
SYMPTOM PROBABLF CAUSF 
Cannot place immediate 
off-hook voice announce 
calls (using the DSS/BLF Programming error 
User error 
Defective keyset 
Defective DSS/BLF Unit 
Defective station circuit 
Replace defective KCB or EXI? 
Defective KCB Refer to page 6-2 to test the system 
voltages. Replace the control board if 
faulty. 
CORRECTIVE ACTION 
Ensure...

INTER-TEL PRACTICES TROUBLESHOOTING 
GMX-48 INSTALLATION & MAINTENANCE Issue 2, May 1990 
i 
.: 
7. DEFECTIVE UNIT RETURN 
POLICY 
IMPORTANT 
For complete information on returning equip- 
ment, refer to the current Inter-Tel Incorporated 
Material Return Policy (document part number 
835.1065). This document includes specific in- 
formation on the following subjects: warranty, 
procedures to follow when returning equip- 
ment, equipment damaged in shipment, insur- 
ance, repair policy, and advance...

INTER-TEL PRACTICES 
GMX-48 INSTALLATION & MAINTENANCE 
REPLACEMENT PARTS Issue 2, May 1990 
REPLACEMENT PARTS 
CONTENTS PAGE 
1. 
2. 
.- 
:: 
3. 
:; 
4. 
1. 
1.1 
Introduction ............................................................ 
7-l 
Ordering Procedure ..................................................... 
7-l 
Replacement Parts List .................................................. 
7-l 
Recommended Spare Parts ............................................... 7-l 
INTRODUCTION 
3. REPLACEMENT...