Abell A-80 - Page 39

A-80 UHF SERVICE MANUAL
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(Relay terminal ：+ Jig <chassis> ：-)
Use the A-80 programming software for adjustment the following item in the PC mode
Squelch Level, Transmit frequency, DQT balance, RF power, QT deviation, DQT
deviation, Battery level
Section common to the transmitter and receiver (VCO)
Measurement Adjustment
Item Condition
Test Equipment Terminal Parts Method
Specification/Remarks
1. Setting 1)Power supply voltage
Battery terminal：7.5V
1)：CH: TX high
TC100 3.7V
±0.2V
2)：CH: RX high
TC101 3.7V
±0.2 V
3)：CH: TX low
2.VCO
lock
voltage
4)：CH: RX low
Digital voltmeter
Tp100
Check More than 1.0V
Receiver section
Measurement Adjustment
Item Condition
Test
equipment
Terminal Parts method
Specification/
Remark