Inter-Tel AXXESS Manual page 1284

Troubleshooting
® ®
INTER-TEL AXXESS
6.
Page 7-4
MANUAL VERSION 11.0 – May 2008
NOTE:
A blinking LED indi-
cates that an overly high volt-
age has been detected. A lit
LED merely indicates that there
is some voltage present (as
shown in the table at the right);
it does not, however, indicate
whether the voltage level is
acceptable. To determine the
exact voltage level present, per-
form step 5b.
Measure the following system voltages as outlined on
b.
digital voltmeter of ±0.5% accuracy is required. Insert the "common" voltmeter
probe into the ground point and insert the other probe into the desired voltage test
point. (See Figure 3-39
point locations.)
Table 7-1.
SLPWR (+24VDC)
Perform one of the following steps:
•
If the system voltages are not within the specified limits, replace the defective
power supply unit.
DO NOT attempt to adjust the power supply voltages. Damage caused by unau-
thorized voltage adjustment will not be covered by the warranty.
•
If the system voltages are correct and the CPU ACTIVE LED is still flashing, try
another card.
NOTE:
If possible, use the save/restore program to save the customer's database
before replacing the CPC or CPU Card (see
(loaded) into a new CPC or CPU Card if necessary. Make sure that the database
back-up battery on the CPC or CPU Card has a charge of at least 3.3VDC and that
the battery back-up jumper strap is in the ON position.
•
If the system voltages are correct and the CPU ACTIVE LED is properly lit, yet
the problem still persists, contact Technical Support for assistance.
Voltage
+5VDC
-5VDC
+24VDC
on page 3-79 or Figure 3-43
Voltage Test Point
Voltage Tolerance
-5VDC +5%
+5VDC +5%
+24VDC +5%
+5%
CAUTION
page
LED Output
OFF 1V
ON >1V & <6.5V
BLINKING 6.5V
OFF -1V
ON <-1V & >-6.6V
BLINKING -6.5V
OFF 1V
ON >1V & <29V
BLINKING 29V
page 3-83 or page 3-92. A
on page 3-88 for voltage test
6-65). It can then be restored
Circuit Card LEDs