User's Manual

TC-700 Adjustment Description

Adjustment Description

Adjust the radio by PC programming software or by manual adjustment. In manual adjustment mode, the

adjustment method is shown as follows: (Refer to “Software Specification” for the manual adjustment

mode)

Required Test Instrument

Radio Communication Test Set 1 set

Scanner 1 set

3A/10V Power Supply 1 set

Digital Voltmeter 1 set

3A Ammeter 1 set

Adjustment

1. Adjustment in user mode

Firstly ground the SELF point, turn on the power by holding down TK for 2 seconds, and then the radio

enters reset mode with green LED flashing twice. Turn the channel selector knob to the selected channel

and press PTT, the radio data is all reset (All clone modes will be automatically activated when reset is

completed). Refer to All Reset Mode in Software Specification for more details:

VCO

Measurement Adjustment

Item Condition

Test

Instrument

Terminal Parts Method

Specification

/Remarks

1. Setting Power supply voltage

1. CH: TX high 3.9V±0.1V 2.Transmit VCO

lock voltage

2. TX Low Check >0.5V

1. CH: RX high 3.9V±0.1V 3.Receive VCO

lock voltage

2. RX low

Digital

Voltmeter

CV TC301

TC302

Check >0.5V

2. Manual Adjust Mode Description

(1) Enter the manual adjust mode

Turn the power on by holding down TK and SK2 key simultaneously for 2 seconds, the radio enters

manual adjust mode with red LED flashes twice. (TK: Top key; SK1: Side key1; SK2: Side key2)

(2) Channel number on the channel selector knob

Each channel number on the channel selector knob is defined a setting item. The bandwidth is

25 KHz and low frequency (F1) each time the channel selector knob is rotated.