S1 Service manual
40
Note：Supply power from an external power supply
(Relay terminal ：+ Jig <chassis> ：-)
Use the S-1 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：4V
1)：CH: TX high
2.2V ±0.2V
2)：CH: RX high
2.2V ±0.2 V
3)：CH: TX low
4)：CH: RX low
Test Higher than 1.0V
2.VCO
lock
voltage
5)：PMR446
Digital
voltmeter
Tp5
L13
1.2V ±0.2 V
Receiver section
Item Condition Measurement Adjustment Specification / Remarks
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