HYT TM-800K, Service Manual

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TM-800K Service Manual
83
Warnings When Removing or Installing the Shielding Cover
1. When handling with the shielding cover, do not damage the components on the TX-RX unit.
2. When installing the shielding cover, insert the cover from the rear side.
3. When removing the shielding cover, squeeze the hole marked with an arrow as shown on the
diagram and pull it straight up.
Tuning Description
The radio can be adjusted by PC programming software or by manual adjustment. Manual adjustment
procedure of TM800 is as follows. ( Refer to “Test Mode” and “Adjust mode” in the section Radio
Modes. )
Instrument:
Radio Communication Test Set 1 set Scanner 1 set
20A / 30V Power Supply 1 set Digital Voltmeter 1 set
Power Meter 1 set Signal Line ( with dummy load ) 1 pcs
Adjustment:
1. Download
●
Connect the radio with PC by programming cable; Turn the radio on.
● Click “Download” on software interface;
●
Select the desired program and click “Open”, download starts.
●
Click “End” when download is completed.
●
Turn the radio off and remove the programming cable.
2. Initialization
It’s necessary to set the frequency and initialize the radio before adjustment because there is no
needed information in FLASH ROM when the radio is manufactured.
●
Turn the radio on while holding down [ PF2 ] , then press [ PF3 ] , [ PF4 ] and [ PF6 ] in sequence.
●
The LED on control panel turns green from red, indicating that the initialization is completed.