[ICOM] ICOM IC-2100 vs 2100H
GGLL
nagato at madryndigital.com.ar
Wed Sep 17 21:28:44 EDT 2014
Ok, it could be so; nevertheless, if you reverse probe leads, it
"should" measure (protection) diode voltage threshold, when everything
is still ok.
Regards
Guillermo - LU5WE.
El 17/09/14 a las 10:58, D C _Mac_ Macdonald escibió:
> Well, I don't have a service manual YET, but I did score one on eBay
> about 15 minutes ago. It should arrive here in about a week.
>
> I guess I'll go from there!
>
> There is NO continuity between the plus lead and chassis, so I expect
> that either the main trace may be fried or worse damage has
> occurred.
>
> Thanks again, everyone who provided info.
>
> * * * * * * * * * * * * 73 - Mac, K2GKK/5 * * (Since 30 Nov 53) * *
> k2gkk hotmail com * * Oklahoma City, OK * * USAF & FAA (Ret.) * * * *
> * * * * * * * *
>
>
>
>> To: icom at mailman.qth.net Date: Wed, 17 Sep 2014 08:47:40 -0400
>> From: ma.locksmith at juno.com Subject: Re: [ICOM] ICOM IC-2100 vs
>> 2100H
>>
>> Now that you have the service manual, you can see there IS a diode,
>> and it's on the board.
>>
>> If the input is not shorted, is it open? If you measure the diode
>> on the board, is it open, shorted, or good?
>>
>> Ed K1ZOK
>>
>> On Tue, 16 Sep 2014 13:34:58 -0500 D C _Mac_ Macdonald
>> <k2gkk at hotmail.com> writes:
>>> I don't know if Icom had included a reverse protection diode.
>>> The input line is NOT shorted but I really suspect that reverse
>>> polarity was applied WITHOUT a fused line.
>>>
>>> I guess the first thing to do is try to find a service manual
>>> for the radio.
>>>
>>> Thanks to those who have replied so far.
>>>
>>> * * * * * * * * * * * * 73 - Mac, K2GKK/5 * * * * * * * * * * * *
>>>
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