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HYT TC-580 Service Manual
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HYT TC-580 Service Manual

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Download this manual See also: Service Manual, Owner's Manual
Adjustment Description
Required Test Instruments
Radio communication test set (HP8921)
10V/3A regulated DC power supply
Digital voltmeter
Ammeter
Preparation
Place the board to be tested on the test fixture (please ensure good connection between each test point
and the fixture), and connect the board to a power supply.
Tuning Procedures
1. Operations before Tuning
1)
PCB Tuning:
Before the PCB arrives each work station for specification inspection, programs must be
downloaded and EEPROM must be initialized by the profiles (downloading with a test
framework/ initializing via programming software or through wired clone). If any adjustment is
required, apply a programming cable to enter the adjustment mode for PC programming or
manual adjustment.
2)
Radio Tuning:
1) Manual Tuning: Hold down PTT and SK1 for 2 seconds while powering on the radio. Then
the LCD displays "Tuning Mode". After the keys are released, press OK, and then press
UP/DN to select your desired tuning item. To enter this item, press OK again. To return to the
previous menu, press C. The LED solidly glows red for TX group items and green for RX
group items. Follow the operation instructions to tune each item.
2) Automatic Tuning: Connect a programming cable to the radio for real-time tuning through
PC.
3)
Wired Clone:
1) Connect two radios using a cloning cable. Then hold down SK1 for 2 seconds while
powering the source radio on, and the radio enters Clone mode, with red LED flashing once.
The target radio can be directly turned on to enter the mode.
2) Press SK2 in Clone mode to switch to Factory Clone mode, with red LED flashing twice.
1 set
1 set
1 set
1 set
40
TC-580 Service Manual

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Summary of Contents for HYT TC-580

  • Page 1 TC-580 Service Manual Adjustment Description Required Test Instruments Radio communication test set (HP8921) 1 set 10V/3A regulated DC power supply 1 set Digital voltmeter 1 set Ammeter 1 set Preparation Place the board to be tested on the test fixture (please ensure good connection between each test point and the fixture), and connect the board to a power supply.
  • Page 2 TC-580 Service Manual (Note: The Factory Clone Mode option must be checked through the programming software.) 3) Press PTT to begin cloning. During cloning, LED of the source radio glows red, while LED of the target radio glows green. Upon completion of cloning, LED of the source radio solidly glows orange.
  • Page 3 TC-580 Service Manual RX Section SQL Level 1 ON SQL Level 5 ON SQL Level 9 ON SQL Level 1 OFF SQL Level 5 OFF SQL Level 9 OFF RX Low Voltage Threshold Max. RX Volume Bandpass Filter Y indicates frequencies that can be tuned, and the rest are blank Note: channels not available for tuning.
  • Page 4 TC-580 Service Manual sampling. Press SK1 or SK2 after entering the above items, to activate AD sampling (including calculation) once. Press OK to save the current AD sampling value and exit. If neither of SK1 or SK2 is pressed, the tuning value will not be updated, and AD sampling will not be activated.
  • Page 5 TC-580 Service Manual Tuning in the mode Note: Make sure the antenna or load is connected before adjustment. TX group items: go to tune TX items under TX Item menu. Test Adjustment Specifications Item Condition / Remarks Test Instrument Test point...
  • Page 6 TC-580 Service Manual Switch to and enter CDC Dev. WFP1 at low frequency is set 700±50Hz by default. Press SK1/SK2 to Communication Short press UP/DN to tune the CDCSS Test Set Press switch the frequency. Antenna deviation, and press BPF:...
  • Page 7 TC-580 Service Manual Switch to and enter Press SK1/SK2 DTMF Dev. WFP1 at to tune the low frequency is set Communication DTMF 3±0.1kHz by default. Test Set Press deviation, and Short press UP/DN to BPF: Antenna SK1/ press OK to switch the frequency.
  • Page 8 TC-580 Service Manual RX group items: go to tune RX items under RX Item menu. Test Adjustment Specifications / Items Condition Remarks Test Instrument Test point Part Method Switch to and enter Adjust the Check the bandpass BPF Tune. WFP1 at...

  • Page 9: Appendix 1: Reference Value For Tc-580U Source Radio

    TC-580 Service Manual Tune WFP5 in SQL Squelch level Close5, and then press (Level 5): UP to enter NFP1 at Communication -122dB low frequency. Test Set Antenna Press SSG: -122dBm Refer to the Squelch Earpiece SK1/ MOD: 1KHz above. Refer to method of...

  • Page 10: Appendix 2: Reference Value For Tc-580 Battery Strength

    RX Low Voltage Threshold Max. RX Volume Bandpass Filter Note: The value is subject to that of the source radio. Appendix 2: Reference Value for TC-580 Battery Strength Detection in TX status Green LED glows (70%-100%) >7.46V Duration: 18 minutes Orange LED glows (50%-70%) 7.15V - 7.35V...

  • Page 11: Troubleshooting Flow Chart

    TC-580 Service Manual Troubleshooting Flow Chart TX Section Start No Sound during LED fails to Low TX Power No transmission Replace D609 transmission glow/flash Normal TX Check the TX power supply? power Check the audio path (MIC, D108) LED of D609...
  • Page 12 TC-580 Service Manual RX Section...
  • Page 13 TC-580 Service Manual MCU Section Start Normal power-on alert tone and LCD display? Normal power-on Normal power-on No power-on alert No power-on alert alert tone and LCD alert tone but no tone but normal tone and no LCD display LCD Display...