HYT TC-500, Service Manual, Page: 8 / 77

TC-500 Service Manual
7
Manual Adjust Mode
If manual adjust mode is enabled, turn on the radio while holding down PTT and MONI simultaneously,
the radio enters manual adjust mode after 2 seconds. Choose the adjusting items by turning the
Channel Selector Knob to CH1-CH7 position; use PTT (upwards) or MONI (downwards) to adjust
(Note: Microphone jack shouldn’t be connected with external cable while adjustment), CH1-CH7
positions are defined as follows:
CH1 Low battery alert level
CH2 Squelch level 9
CH3 Squelch level 3
CH4 CTCSS deviation (wide)
CH5 CDCSS deviation (wide)
CH6 CTCSS deviation (narrow)
CH7 CDCSS deviation (narrow)
CH13 to CH16 are used to adjust transmitter and receiver. Press PTT key to transmit; release it to
receive. CH13 to CH16 are defined as follows:
CH13 Center frequency (difference between transmit and receive frequency is 0.1MHz)
CH14 Lowest frequency (difference between transmit and receive frequency is 0.1MHz)
CH15 Highest frequency (difference between transmit and receive frequency is -0.075MHz)
CH16 Center frequency: transmit with 250.3Hz CTCSS signalling (difference between transmit and
receive frequency is 0.1MHz)
Note:
To enable or disable manual adjust mode: short out the two SELF points, turn on the radio to enter model
set mode. And then the manual adjust mode is enabled. Press PTT key, manual adjust mode is disabled.
This mode is suggested to be disabled after the adjustment is completed.
User/Factory Wired Clone Mode
Turn on the radio while holding down MONI , the radio enters wired clone mode.
1. If the two SELF points are disconnected, press MONI key again to begin user wired clone and red
LED blinks; when cloning is completed, red LED goes out.
2. If the two SELF points are short circuit, press MONI again to begin factory wired clone and red LED
blinks; when cloning is completed, red LED goes out.
Note: The difference between user wired clone mode and factory wired clone mode is that the latter is
able to clone tune parameters.