Spares Holding; Safety Precautions - Harris ZX2500 Technical Manual

ZX Series
7. Oscilloscope and probe leads
8. Spectrum analyzer (recommended for HD Radio)
9. Network or transmission line analyzer (optional, but useful)
5.2.3

Spares Holding

The ability to quickly resolve any equipment problems is greatly helped by maintaining
a complement of spare parts on site. Harris offers a variety of ready-made spares kits
for the ZX series transmitters addressed by this manual:
(990-1202-002) KIT, MODULE SPARES, ZXB (all models)
(990-1204-001) KIT, BOARD SPARES, ZX5000
(990-1205-001) KIT, BOARD SPARES, ZX3750
(990-1206-001) KIT, BOARD SPARES, ZX2500
(990-1261-001) KIT, BASIC, SPARE PARTS, ZXB (all models)
Consult Section 7 – Parts Lists for a complete description of the contents of these kits.
In addition to these kits, complete output assemblies and populated fan doors may be
purchased a la carte. These minimize downtime during servicing by allowing an entire
subsystem to be substituted in just minutes. Contact Harris for further details.
5.2.4

Safety Precautions

The amplifier chassis is composed of two general zones: the front half, as accessed by
the front door and the rear half, as accessed by the rear door.
The front door is hinged and can be opened while the transmitter is running for access
to the PA and PS modules. The PA and PS modules may be replaced while the
transmitter is operating.
The rear door requires a tool to gain access and should never be opened while the
transmitter is operating. It is very dangerous to attempt to make measurements or to
replace components in the rear chamber with the mains power applied. Shut off all
power before servicing the transmitter, other than replacement of PA and PS modules.
12/20/11
WARNING: Disconnect primary power prior to servicing.
c. Calibrated through-line line section
888-2595-001
Section 5 Maintenance and Alignments
5-5