HYT TC-268, Service Manual

Page: 7 / 78

TC-268/368 Service Manual
5
3. PC tuning mode:
The following parameters can be set via external programmer or PC programming software:
(1) Frequency stability
(2) RF power
(3) Low battery alert
(4) Squelch (level 9 and level 3)
(5) CTCSS deviation (Wide/Narrow).
(6) CDCSS deviation (Wide/Narrow).
(7) Receive sensitivity (Low/Medium/High)
4. Wired Clone:
Power on the radio via holding down the MONI key, then the radio enters the wired clone mode
2 seconds later, press PTT to begin cloning while red LED flashes, red LED goes out while
cloning is finished.
5. Mode setting:
(1) Short circuit the two SELF points (short circuit) on PCB, and turn on the radio, two
“Beeps” are heard.
(2) Turn channel selector knob to corresponding channel (1-16) according to the model
(see initial data table)
(3) Press [PTT] while holding down [MONI] to set the mode. Channel data and settings
are initialized.
(4) Turn off the radio, disconnect the two SELF points on PCB to end mode settings.
Take TC-268(2) for example, its number is 2, to initialize its model and channel data: Short
circuit the two SELF points on PCB , and turn on the radio, set the channel selector knob at
CH2, and then press PTT while holding down MONI, channel data of CH1,CH2,CH3 and
CH4 is initialized as the corresponding data of No.2. Reset data to initial data. The receive
and transmit frequency of channel 5-14 are the same with channel 1, signallings are 5,
10:67.0Hz; 6,11:151.4Hz; 7,12:250.3Hz; 8,13:423(CDCSS); 9,14: -423(CDCSS), Channel
1-9 are Wide, Channel 10-14 are Narrow. Turn off the radio after reset, disconnecting SELF
and re-power on to use the radio.
(5) Remarks:
The former data (frequency, CTCSS/CDCSS, channel function settings) will be deleted once
the new model is set, and some functions will also be changed. Therefore, do not make this
operation unless necessary, such as replacing the EEPROM, etc.