HYT TC-265 Service Manual page 8

5.2 Manual Adjust Mode
In this mode, the factory or the dealer can adjust the radio parameters in menu mode.
Operation:
Turn the radio on while holding down the [PTT], three beeps sound after 2 seconds and green LED
flashes. Release [PTT], a beep sounds and orange LED glows indicating that the radio enters manual
adjust mode.
1. In the main menu, turn channel selector to select adjustment items. Press [PTT] to enter the
submenu.
2. In the submenu, use channel selector to select among center, low, and high frequency or
narrowband/wideband. Press [PTT] to transmit or adjust upwards and press [MONI] to adjust
downwards.
3. After complete a setting, hold down [MONI] and then press [PTT] in 2 seconds, a beep sounds and
orange LED glows. The setting values are saved and the radio returns to the previous menu. Press
[PTT]/[MONI] more than 2 seconds to adjust setting values upwards/downwards. Turn the radio off
to cancel the setting.
4. CH1-CH9 are defined as follows:
Note: Frequency stability and VCO lock voltage should be adjusted before your adjustment to ensure
the reliability of the adjustment.
(1) Frequency stability and VCO lock voltage:
Adjust at center frequency CH1. Press [PTT] to switch between transmit and receive. Adjust frequency
stability at VR1, receive VCO at TC2 and transmit VCO at TC1. Turn to low frequency (CH2) and high
frequency (CH3) to check that the item is within the set range.
(2) RF BPF:
Adjust at center, low and high frequency. Adjust RF BPF at TC-201, TC-202 and TC-203. Pressing
[PTT]/[MONI] can adjust upwards/downwards. Receiver sensitivity can be tested in this mode.
(3) Squelch level 9:
Adjust at center, low and high frequency. Pressing [PTT]/[MONI] can adjust upwards/downwards.
(4) Squelch level 3:
Adjust at center, low and high frequency. Pressing [PTT]/[MONI] can adjust upwards/downwards.
(5) Transmit power:
Adjust at center, low and high frequency. Pressing [PTT]/[MONI] can adjust upwards/downwards.
(6) CTCSS deviation:
Adjust at center, low and high frequency. Adjust wideband at group 0 and narrowband at group 2.
CTCSS signal is 67.0Hz. Save the value. (Adjust wideband at group 1 and narrowband at group 3.
CTCSS signal is 250.3Hz. Adjust CTCSS balance at VR500.)
Pressing [PTT]/[MONI] can adjust upwards/downwards. Adjust balance of CTCSS deviation at center,
low, and high frequency.
TC-265/365 SERVICE MANUAL
－ －
7