QUANTUN QP-750, Service Manual

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QP-750 Service Manual
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Chapter 1 Test Equipment, Service Aids, and
Service Tools
1.1 Test Equipment
Table 1-1 lists test equipment required to service the QP-750 Radios.
Table 1-1. Recommended Test Equipment
Description Characteristics Application
Communication Test
Set
Frequency/deviation meter and signal
generator for wide-range troubleshooting and
RF level measurements and receiver
sensitivity measurements
Digital multimeter
True RMS metering, Digital voltmeter is recommended
for AC/DC voltage and current measurements
Dual channel
100 MHz oscilloscope
Two-channel, 100 MHz
bandwidth, 200 M sample
rate/sec, 2 MB memory/
channel Waveform measurements
1.2 Service Aids
Table 1-2 lists service aids recommended for working on the QP-750 Radios. While all of these
items are available from Quantun, most are standard shop equipment items, and any equivalent
item capable of the same performance may be substituted for the item listed.
Table 1-2. Service Aids
Description Application
DC Power Supply Regulates DC voltage between radio and power supply.
Customer Programming Software Program customer option and channel data.
Test Cable Connects radio to test equipment.
RF Adaptor Adapts radio’s antenna port to BNC cabling of test equipment.
Battery Adaptor Interconnects radio to power supply.
Knob Remover/Chassis Opener
Used to remove the chassis form front cover assembly, knobs
from the switches.
Programming Cable
Connects the computer’s serial communications adapt to radio
and enables communications between the radio and the
computer.
Radio-to-Radio Cloning Cable
Allows a radio to be duplicated from a master radio by
transferring programmed data from the master radio to the
other.