Inter-Tel Microprocessor Key Installation And Maintenance Practices Manual

INTER-TEL PRACTICES TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 
NOTE: The following symptoms are isolated to one keyset only. For identical problems 
involving more than one keyset, refer to Section 3.02; D SYSTEM MALFUNCTIONS. 
SYMPTOM PROBABLE CAUSE 
CORRECTIVE ACTION 
Cannot place a 
call on hold a. User error 
a. Refer to Section 340-100-200 and ‘verify 
feature operation. 
b. 5.OV regulator out of 
b. Set 5.OV regulator as outlined in Section 
tolerance 
340-l 00-300. 
c. Defective...

TROUBLESHOOTING 
SECTION 340-100-600 
ksue 3, April 1963 INTER-TEL PRACTICES 
-. 
Figure 6-1. Conf/mmf / 
SYMPTOM PROBABLE CAUSE 
CORRECTIVE ACTION 
Last number redial 
inoperative a. User error 
a. Refer to Section 340-100-200 and verify 
feature operation. 
b. Improper usage 
b. The redial function cannot be used for 
redialing numbers stored in the keyset’s 
memory. 
c. Defective keyset 
c. Replace the keyset with a known good 
keyset 
Redial busy number 
inoperative a. User error 
a. Refer to Section...

INTER-TEL PRACTICES 
TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 
Figure 6-1. Confinued 
SYMPTOM 
Cannot transfer 
outside calls to 
other keysets PROBABLE CAUSE 
a. User error 
b. Called station is in 
do-not-disturb CORRECTIVE ACTION 
a. Refer to Section 340-100-200 and verify 
feature operation. 
b. Standard operating procedure. Any keyset 
in do-not-disturb cannot receive calls from 
a transferring station. 
c. Defective keyset 
c. Replace the keyset with a known good 
keyset. (Check...

\.-. 
TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 INTER-TEL PRACTICES 
-. 
.: 
/ 
Figure 6-1. Cod/wed 
SYMPTOM PROBABLE CAUSE 
CORRECTIVE ACTION 
Paging times out 
in less than 
12 seconds a. Usrr error 
b. STN PCB has 
undetermined 
extensions a. Refer to Section 340-100-200 and verify 
feature operation. 
b. Terminate the unused extensions. Refer to 
Section 340-100-300 for instruction. 
c. Defective CPU 
c. Contact INTER-TEL’s Field Service for 
assistance. 
NOTE: Speed transfer, digit I...

INTER-TEL PRACTICES TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 
-$. 
NOTE: The following symptoms are isolated to one keyset on/y. For identicalproblems involving 
more than one keyset, refer to Section 3.020 System Malfunction, and Figure 6-4. 
SYMPTOM 
No intercom 
dial tone PROBABLE CAUSE 
CORRECTIVE ACTION 
a. Defective cabling 
a. Verify correct cable connections. 
b. Defective keyset 
b. Replace the keyset with a known good 
keyset. 
Cannot place 
intercom calls c. Defective 
station...

TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 INTER-TEL PRACTICES 
NOTE: The following symptoms are isolated to one keyset only. For identical problems involving 
more than one keyset, refer to Section 3.020 System Malfunctions, and Figure 6-4. 
SYMPTOM - 
--__-- 
PROBABLE CAUSE 
CORRECTIVE ACTION 
Cannot obtain 
C.O. dial tone 
(intercom function.) a. CO. line(s) 
restricted a. Check the station option sheet and com- 
pare with the station programming for that 
keyset. 
b. Defective keyset...

INTER-TEL PRACTICES 
TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 
SYMPTOM PROBABLE CAUSE 
CORRECTIVE ACTION 
Ail keysets in the 
system will not 
operate. No LED 
indications when 
a line key is pressed a. Main power fuse 
open a. 
b. Open connection in 
cable between 
power supply and 
KSU motherboard b. 
c. Defective 
station board 
C. 
Examine the fuse and replace it if neces- 
sary. 
CAUTION: Do not exceed maximum rating 
of fuse. 
Remove power from the system. Use an 
ohmmeter to check...

TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 
Figure 6-4. Confinued INTER-TEL PRACTICES 
 
-1 
, 
SYMPTOM PROBABLE CAUSE 
CORRECTIVE ACTION 
The SMDR printer will not a. Baud rates of the 
a. Match the baud rates of the printer and the 
communicate with CPU terminal and the CPU 
CPU. Set the printer for 300 baud. 
are not the same 
b. Miswired or 
defective cable b. Repair or replace connecting cable. 
c. Defective power supply 
c. Check the -12VDC with a voltmeter on the 
terminals of the...

INTER-TEL PRACTICES TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 
NOTE: See Figure 6-6 for the locations of the LED lamps. 
’ 
PRINTED 
CIRCUIT BOARD LAMP LOCATION 
DESCRIPTION 
STN A Power reset LED (normally OFF) 
1. Indicates PCB has been acknowledged and 
electrically reset by the CPU. 
2. Indicates that a power interrupt has oc- 
curred on that PCB. 
B through E Circuit LED’s (OFF when not in use) 
1. Indicates that the station associated with 
that circuit is in use. 
CPU A through C...

TROUBLESHOOTING 
SECTION 340-100-600 
Issue 3, April 1983 INTER-TEL PRACTICES 
SYMPTOM 
Conference Figure 6-5. Continued 
PROBABLE CAUSE 
CORRECTIVE ACTION 
A Power Reset (normally OFF) 
1. Indicates that the PCB has been acknowl- 
edged and electrically reset by the CPU. 
2. Indicates that a power interrupt has oc- 
curred on that PCB. 
B through D Conference CKT 1 (normally OFF) 
1. Lights when circuit is activated. 
E through G Conference CKT 2 (normally OFF) 
1. Lights when the circuit is activated....