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TM-421A EXTENDED RF | Radioaficion Ham Radio

TM-421A EXTENDED RF

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KENWOOD TM-421A

EXTENDED RF

1. Remove power and antenna.

2. Remove the top and bottom covers

3. Remove the channel knob

4. Remove the microphone ring.

5. Remove the volume and squelch knobs

6. Remove the front panel from the unit.

7. Remove the front control unit from the chassis.

8. Locate component side of the Control unit circuit board.

9. Locate chip Resistor R-25.

10. Remove R-25 and place it in the empty position R-23.

11. Remove R-22.

12. Reassemble the radio.

13. Reset the microprocessor.(Press and hold [MR] while turning on the power)

KENWOOD TM-421A EXTENDED RF

RESET : Press and hold [VFO/M] and [M.IN] and turn power on.

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