[ICOM] R71A Problems

[Larry L. Hinton]

I concur. I just installed one of the PIEXX units in my 751A.

Larry
K7YBZ

--------------------------------------------------
From: "Ken Winterling" <wa2lbi at frontiernet.net>
Sent: Friday, April 08, 2011 2:34 PM
To: "ICOM Reflector" <icom at mailman.qth.net>
Subject: Re: [ICOM] R71A Problems

> Gary,
>
> I have used the PIEXX Non-Volatile RAM module in the 751A but it also 
> works
> in the R71A.  It costs $59 new.  The battery on the module only maintains
> the memory channel data. The "personality", if you will, is stored in the
> NVRAM so it isn't lost when the battery dies or is removed.  The radio 
> will
> continue to work with a dead or missing battery.
>
> See it here:
> http://www.piexx.com/index.php?main_page=product_info&cPath=8&products_id=26
>
> Installation documentation: http://www.piexx.com/icomprom.pdf
>
> Ken, WA2LBI
>
>
> On Fri, Apr 8, 2011 at 16:27, Gary H. Harmon, Jr. 
> <gharmon at idworld.net>wrote:
>
>> My concern now is if a new RAM module will return the radio to normal.  I
>> replaced the battery and it made no difference.  Of course, if the RAM 
>> had
>> already died because of the battery, a new battery would not have made 
>> any
>> difference.  Gary makes a good point in suggesting a swap test with a 
>> known
>> good RAM board.  Does anyone have a "loaner" board for testing?
>>
>> I see there are boards on eBay for $65.
>>
>> Thanks in advance.
>>
>> Gary H. Harmon, Jr. - K5JWK
>> 6003 Archwood
>> San Antonio, TX 78239-1504
>> 210.657.1549h / 210.884.6926c
>>
>> "Retirement means every day is a Saturday except Sunday"
>>
>>  -----Original Message-----
>> From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net]
>> On
>> Behalf Of Gary P. Fiber
>> Sent: Friday, April 08, 2011 3:19 PM
>> To: ICOM Reflector
>> Subject: Re: [ICOM] R71A Problems
>>
>> Amazing to me but sure sounds like the battery was flat and lost the ram
>> programming.
>> If you are careful and have another R-71A you can swap the ram units and
>> see
>> if the trouble travels. I am unsure if either Scott Malcom or Kuni Okuma
>> can
>> reprogram the ram units.
>> I did one see online a home built ram unit programmer and the Hex files 
>> for
>> the various units. below are some site and show some home made 
>> programmers.
>>
>> http://www.qrz.ru/schemes/contribute/technology/icom751/english.shtml
>> http://www.reocities.com/n2cbu/Icom/ReadMe.htm
>>
>> http://ad4c.us/ICOM%20HF%20manuals/IC-R71A/Modifications%20for%20the%20Icom%
>> 20IC-R71.htm
>> EPROM / RAMBOARD
>> by Roberto Nardo, IK2RND
>> For ICOM  IC-751/A  IC-751 IC-745
>>      ICR71E/A and IC-271 IC-471 IC-1271
>>
>> I'd probably grab one of the eprom programmed after market replacement
>> boards. They seem to be very reliable and most of the designs add more
>> memories.
>>
>> Gary K8IZ
>>
>>
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