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Icom 2sra circuits - Radio Communications

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  • moshe2211
    moshe2211 Jul 08, 2013

    circuitc electronics icom 2sra

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Icom f5021 blows power fuse Does it have a protection diode


should have one where the power wires come into the set. For the price of this radio it better have one.But thats not nessarily why it blows the fuses.It could be a power transistor thats blown or even the driver for it.Could also be an IC circuit.

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ICOM 802 NOTRECEIVING


Check the speaker .it may be busted. If you hear any sound your receiver circuit is faulty

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Icom u16 Rx , but when I Tx , speaker makes buzzing noise , could the antenna connection to the pc board be bad ?


It's possible because this would allow the RF signal to flood the circuit. I would suggest you try another antenna as a first solution. A bad antenna would cause the same problem. Good luck and let me know if it helps!

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1 Answer

IC-736 total failure whilst on air, fuse OK, nothing smelt burning etc, not over heated, no voltage surge, SWR was moderate but protected by APC circuit. Totally dead now.


Hi Jack, (No Pun Intended)

As this is such a fine radio, I would take it to the radio doctor for a once over check-up, The technician will find the problem and give you an estimate of cost to repair the fault, Take care of you radio, it's a great unit that should give you many more years of service.

I hope this advice is of help to you.

Cheers,
Peter

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1 Answer

Can the Microphone be replaced on a ICOM M302 Radio


The MIC is available with the cord from Icom or me (847-746-0100) It is not easy for the novice, it must be routed through the front panel and plugged in to the circuit board inside. Not impossible to do, just tedious. Also, my wild guess is about $50 to buy the mic, so, not worth it if you pay labor!

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1 Answer

ICOM W2a Won't power up, after full charge with two different batteries


There's a comment on eham.net about charging the internal battery first.

Maybe this will help you.


http://www.eham.net/forums/ModsAndRepairs/1961

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