User Guide

TM-610V：136-174；

VCO Adjustment

Measurement Adjustment

Item Condition

Test Instrument Terminal Part Method

Specifications

/Remarks

1. Power supply

1. Power

supply: 13.6 V

Note: 1. This mobile radio only can be installed in a minus grounding

power system. Reverse polarity will cause the cable fuse to blow. Check

the vehicle ground polarity before the installation to avoid wasted time

and effort.

2. IF DC power is to be controlled by the vehicle ignition switch, a switch

relay should be used to switch the positive power lead. The vehicle

ignition switch then controls DC to the relay coil.。

1.CH：TX HI 6.0V±0.1V

2. VCO Latch

voltage (TX)

2.CH：TX LO

TC1

Check ＞1.0V

1.CH：RX HI

6.0V±0.1V

3. VCO Latch

voltage (RX)

2.CH：RX LO

Digital voltmeter CV

TC2

Check ＞1.3V