Modifications for the ICOM - RogerK

By diode:●●Remove D17 diode on the logic board.Do a full reset by switching off the radio. Then while pushing [SET] + [SPCH], turn on the radio.After either mod, you will have:118,000 - 135,995 MHz AM136,000 - 174,000 MHz FM320,000 - 479,000 MHz FM830,000 - 950,000 MHz FM (Needs extra coaxial cable to receive anything)Expand RX for the USA version:●Cut W1 jumper wire on logic board.After mod, you will have:118,000 - 135,995 MHz AM136,000 - 174,000 MHz FM320,000 - 479,000 MHz FMThis modification is read 766 times.top of page20-01-2001(IC-2340) IC-2340 modsSymptom:Any of the following: Cannot change band to UHF, no UHF volume or squelch control, no UHF tuning, or strange-sounding beeptone.Cure:Rework bad soldering at J3 on display unit and replace the SW-B board with a factory-modified flex PC board.Symptom:No audio output from receiver.Cure:Remove excessive solder on the Main-A unit near the audio amp.Symptom:Howling if volume is turned up when using UHF.Probable Cause:Microphonics in VCO section. Resolder the ground spring at the UHF VCO shield. You may also add a second spring for furtherimproved resistance to microphones.This modification is read 748 times.top of page