[ICOM] Icom 756 and ESD

[C.Whitaker]

de Clete
define "well known".  I don't.
73  WB2CPN
++++++++++++++++++++++++++

On 5/4/2012 8:57 PM, Jim Vohland wrote:
> I would wager that the number of failures in the 746 Pro line are a closely guarded secret. It is well known the failure issues with that rig, above and beyond any other model. Whenever I talk to someone on the air that uses a 746 pro, I always ask about any issues. It is very rare to find someone that has never had an issue. Once again, nothing scientific but personally I have talked to approx 50 owners who have experienced failures and 7 who have not. Yes I did keep track. I concur with your evaluation of the tolerance of solid state electronics but the 746 is in a class of its own.
>
>
>
>
>> Date: Fri, 4 May 2012 17:52:20 -0700
>> From: k4lxv at bellsouth.net
>> To: icom at mailman.qth.net
>> Subject: Re: [ICOM] Icom 756 and ESD
>>
>> To All; I am almost willing to wager that most every brand of amateur solid state tadios have their share of issues associated with ESD and every nature of spikes that could cause damage. It is the nature of solid state electronics to be less tolerant when the parameters of solid state devices are exceeded. I have owned solid state radios for the last 35 years and have never lost a front end or PA module ever. I have had power supply failures. We all know that power supplies are not that efficient and generate the most power loss and heat.
>>     I question if anyone knows the percentage of ownership of the various brands of radios. Does anyone have this data? This is how we can best determine the failure rate of a particular brand and model radio.
>> Larry, K4LXV
>>
>> --- On Fri, 5/4/12, John G.<af5cc at fidmail.com>  wrote:
>>
>> From: John G.<af5cc at fidmail.com>
>> Subject: Re: [ICOM] Icom 756 and ESD
>> To: "ICOM Reflector"<icom at mailman.qth.net>
>> Date: Friday, May 4, 2012, 5:01 PM
>>
>> Thanks for the info. Hope that is the case.  I have a friend who just had a
>> 746 original die.Turned it on one day and it wouldn't transmit any power. I
>> didn't know the 746 original had that problem as well..  Can't say that I
>> have ever seen a review of the 756 original that mentioned this problem.
>> Hoping to get one soon.
>>
>> John AF5CC
>>
>> ----- Original Message -----
>> From: "Jim Vohland"<n9vo at hotmail.com>
>> To:<icom at mailman.qth.net>
>> Sent: Friday, May 04, 2012 8:34 PM
>> Subject: Re: [ICOM] Icom 756 and ESD
>>
>>
>>>
>>> I don't have scientific data to go by but personally I don't know anyone
>>> with a 756 that ever had an issue. Now in contrast to that, I personally
>>> had 2 746 pro's die, and also have 3 friends with 746's that died.
>>> Additionally I have talked with many hams on the air that suffered 746 pro
>>> deaths.
>>>
>>>
>>>
>>>> From: af5cc at fidmail.com
>>>> To: icom at mailman.qth.net
>>>> Date: Fri, 4 May 2012 18:12:58 +0000
>>>> Subject: [ICOM] Icom 756 and ESD
>>>>
>>>> Last month there was quite a discussion on this reflector about the Icom
>>>> 756PRO series, 746PRO, and 703 being damaged by ESD, and made it sound
>>>> like they are overly sensitive to this phenomenon. Is the 756 original
>>>> also overly succeptable to static discharges, or did the problem start
>>>> with later models?
>>>>
>>>> 73 John AF5CC
>>>> ----
>>>> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>>>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
>>>> Icom FAQ: http://www.qsl.net/icom/
>>>> To support QSL/QTH.net: http://www.qsl.net/donate.html
>>> ----
>>> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
>>> Icom FAQ: http://www.qsl.net/icom/
>>> To support QSL/QTH.net: http://www.qsl.net/donate.html
>> ----
>> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
>> Icom FAQ: http://www.qsl.net/icom/
>> To support QSL/QTH.net: http://www.qsl.net/donate.html
>> ----
>> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
>> Icom FAQ: http://www.qsl.net/icom/
>> To support QSL/QTH.net: http://www.qsl.net/donate.html
>   		 	   		
> ----
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
> To support QSL/QTH.net: http://www.qsl.net/donate.html
>
>