Change Clock Battery; Calibrate Clock Speed - Harris ZX2500 Technical Manual

ZX Series
STEP 3
STEP 4
STEP 5
A.5.4

Change Clock Battery

Purpose: The on-board 3V Lithium battery has an expected lifetime of over 10 years.
If it becomes exhausted, the internal clock will reset to 1 Jan 00 after an AC mains
failure.
Special tools: Small screwdriver to pry out battery.
NOTE:
This procedure is ideally performed with the transmitter off air and all mains
power removed. Wait until a scheduled maintenance period to perform this pro-
cedure. Consult Figure A.1 for a photo of battery location / appearance.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
STEP 7
STEP 8
A.5.5

Calibrate Clock Speed

Purpose: If no special precautions are taken, the on-board clock in the web remote can
slip several seconds a day. To prevent this, the user can fine trim the clock speed to add
or subtract several seconds a day. This adjustment occurs at midnight each night.
Special tools: High quality clock for comparison purposes.
STEP 1
12/20/11
WARNING: Disconnect primary power prior to servicing.
Web remote memory resets IP address, subnet mask, default gateway,
and expert password to values listed above.
Connect to web remote configuration page with PC to 192.168.1.99/
config.htm and change IP address and/or expert password to desired
values.
Procedure complete.
Remove AC mains power to transmitter.
Remove amplifier chassis I/O panel.
Locate 3V battery on web remote PC board.
Pry battery loose with small screwdriver.
Insert new battery.
Reinstall I/O panel in amplifier chassis.
Reapply AC mains power to amplifier chassis.
Procedure complete.
While accessing main page, issue on command via ON button to create a
log entry.
888-2595-001
Appendix A - FM Web Remote Option
A-19