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Re: IC-7000 corrupted eeprom

 

On Sun, Dec 29, 2024 at 09:53 PM, James Tiberius wrote:
There is a chance that the CPU has detected something on the main board and written data either to itself or the eeprom and changing the personality of the radio.
If this was the case James wouldn't your Main board have written it back to it's own personality..?
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You didn't sday if you'd done a hard reset.
Another thing to do is remove the backup battery and see what this brings as set-modes are stored in that eeprom.. and you never know (!)
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rgds
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Tony
Re: IC-7000 corrupted eeprom

 

Hi Tony
Thanks for your response and sorry about your PC - hope you recover all your data.
As for the Japanese radio - i purchased thinking i could use to get my unit working as it has an audio issue.
The Japanese radio was a mix of faults - had about 3 issues mostly power supply related and burnt tracks due to power supply issues.
I don't think the parts are original as well and could have been bundled together for the sale.
Anyway i did manage to get it to an operational state so i could swap logic boards.
Prior to swapping the logic board the Japanese radio did not have the 6m band or general coverage rx.
After putting my logic board into the Japanese radio it behaved in the same way and kept the same personality when returned to my radio.
This is when i started looking into the eeprom and noticed the missing data string in the display on both radio's . My 7000 had the string prior to swapping.
There is a chance that the CPU has detected something on the main board and written data either to itself or the eeprom and changing the personality of the radio.
Logic boards are really expensive and without having a copy of an original logic board eeprom its hard to tell.
My next step is to try and connect to the MCU to see if i can upload a copy of the flash memory.
This is the interface for the MCU
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Yes - very strange that theJapanese version is missing 6m? - all my searches on Japanese band plan show 6m available on Japanese radio's
regards
James
Re: IC-7000 corrupted eeprom

 

Excuse typo's.. Bluetooth keyboard playing up too!
Re: IC-7000 corrupted eeprom

 

Hi James..
Sorry for my late response but I did write a reply days ago but just before posting it the computer power supply decided to short out(!).. so I lost verything I had written. Very frustrating.
Now using another computer which has none of my electronics or service information on so I can't refer to anything. I had made notes about the cpu and eeprom on that computer but can't access it now until a repair is done.
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With the full infomation you have now given I can understand your situation.
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First stating the obvious check the connection is good for the cpu board to main board and do a hard reset.
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Regarding the '602FDF0'.. I'm afraid I don't know what that refers to. It can't be an address as the cpu only has a small RAM (I think 24k flash) and the eeprom is an 8bit x 256k. Maybe address/data 602F/DF0? ?I take it you have a way to read the eeprom ? Do you recognise anything to disassemble it..?
With the main cpu and the eeprom being on the same board you swapped then there was nothing in the Japanese chassis that could have reprogrammed your eeprom. I think the subCPU only passes front panel data for the main CPU and would be surprised if the DDS could change anything.
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From my experience I have only found Icom Japanese versions to be different in PA output and missing some filter components but basically being the same as other versions apart from differences in the diode matrixes. I would have thought the eeprom was just for user settings and memory data/recordings.. but have to say I don't know if it could hold some KEY settings.
I have not found any information so far that leads me to think the eeprom carries something as important as band data. I would have thought that would be 'set in stone' in the CPU ROM.
The Japanese bandplan includes 6m so I can't think why this was missing from the Japanese 7000. Was it fully working or did it have a fault..? (eg: sonmething blown that has now been blown in yours)
Is yout transceiver working properly for all the other bands.. aand otherwise ?? ..and was that previous problem you had with audio solved..? (I noticed another post you made about that).
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If I find any information that might help you I'll post again.
One thing I would suggest is to contact Icom and tell them you changed the CPU board (from a japanese version) and lost 6m. You never know.. you might get some information from them that gives you a lead.
regards
Tony de G7WHK
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Re: Overheating during a contest

 

I've never had a heat issue on my 2011 era IC-7000, but that's most likely because I do not do a lot of continuous duty/digital modes on it for any extended time periods. I also have it feeding an AH-4 tuner so it always sees close to a 1:1 SWR as well.
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That said, I have always been concerned about it being a "hot" rig, that whenever operating I have always placed a 120mm PC case fan sitting on top blowing down on the heat sink and into the fan openings.? The fan is an ultra quiet model and powered by a separate USB cable plugged into my 100Ah LiFePO4 battery (I run off that battery when portable/parked and the truck battery when mobile) or to a USB port on the truck.? I've never seen my heat gauge above 30-40%, and it is rare that it ever leaves the cold end.
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Grant? VA6GT?
Re: Overheating during a contest

 

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This heat question has been batted around on this list for some time.? One side says that the ICOM engineers provided for proper heat distribution, others say that the rig needs additional ways of addressing the heat problem during extended use.? I personally think that it does.

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I really like this TO-3 idea.? What I did was place the IC-7000 in a go-box and placed a muffin fan behind it to blow air over the heat sink in the back. Cheap fix.? There must also be heat transfer as I am using the mounting bracket, and it is fastened to a metal shelf.

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Again, great idea on the TO-3’s!

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‘73 de Jim N2ZZ

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From: [email protected] <[email protected]> On Behalf Of Bob KM4RL
Sent: Sunday, December 29, 2024 8:13 AM
To: [email protected]
Subject: Re: [ic7000] Overheating during a contest

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I've added two TO-3 heat sinks to the left side of my IC 7000 to keep the DSP section much cooler.

You could do the same on the right side to help keep the PAs cool.

I had to file the TO-3 holes a little? to match the hole spacing on the rig.

?

73 de Bob KM4RL.
Re: Overheating during a contest

 

I added two really small fans to the back of the radio? glued to the rear heatsinks.
I added a pair of 4 pin tuner connectors, one for power from the radio and the other to a tuner. I also added an on-off switch and a pair of fused Anderson power poles for auxiliary low power.
I still have the setup in a drawer as I sold the IC-7000 a few years ago.
Re: Overheating during a contest

 

I've added two TO-3 heat sinks to the left side of my IC 7000 to keep the DSP section much cooler.
You could do the same on the right side to help keep the PAs cool.
I had to file the TO-3 holes a little? to match the hole spacing on the rig.
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73 de Bob KM4RL.
Re: Overheating during a contest

 

I've always ran my IC-7000 with the separation kit mobile. Never had a problem with heating.
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I attribute that to the main part of the radio was mounted in the spare tire wheel well belly. So the well is in the bottom of the trunk, under the car in the shade.?
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Further I had the IC7000 connected to a AH-4 antenna tuner .. So my SWR was always 1:1.
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I always ran SSB on HF and 95% FM on VHF-UHF. Operated a VHF contest once portable and? ARRL November sweepstakes SSB 2-3 times.
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It was installed in my car, I bought new for 11-1/2 years till I traded it 3 months ago for a new Ford Maverick. . it had 152,600 miles on the odometer? and probably saw about 30 states in it's adventures as I was a senior field engineer (2nd-3rd level support)? for a global computer company.?
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Larry W8LM
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Re: Overheating during a contest

 

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My 7000 has always tended to run hot but I built up a pair of 12v fans with a standalone bracket to maintain a decent supply of cooling air.?
Have always used this and have never had the driver issue in the finals even with a heavy duty cycle on FT8. Rig is only used as a driver for a 23cm transverter these days so only runs less than 2watts on two metres.?

Cheers Dale Barnes VK7DG?
Get

From: [email protected] <[email protected]> on behalf of Neil Lintott via groups.io <nl3adc@...>
Sent: Saturday, December 28, 2024 12:13:17 PM
To: [email protected] <[email protected]>
Subject: Re: [ic7000] Overheating during a contest
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My IC7000 has ran hot since new, and I never really worried about it. ( on most days all day). Then I read about a fan mod where a simple mod would allow fan to run continuously.
I did the mod and it runs very cool now all day. Admittedly, I spend a lot of time receiving with very little transmitting each day.
I believe the cooler running is probably better for the radio.
There are a couple of different fan mods on the internet, so have a look at them and decide which is best for you.
Hope this helps.
73 Neil ZL3ADC


On 28 Dec 2024, at 12:15?PM, Larry Ryan via groups.io <llryan@...> wrote:

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This fall, I was participating in the WA QSO party (Salmon Run) on CW. The 2nd day, 4 hr before time was up, I was running (as opposed to search and pounce) on 15 and 10M. The 7000 was at full power, WinKeyer USB/N1MM, an end fed HW with SWR indicating less than 1.5. I was making a fair number of contacts when I saw my output drop and saw the temp icon showing in the red. I had been operating fast and furious since the morning - I would guess 10 hours. Ambient temps in the 70s.? No problem on day one but it was 50% CW and 50% SSB.? Since I've bought this rig in 2007, it has never had this overheating problem. I remember on this group (Yahoo group days) there was a lot of discussion about overheating 7000s but mine never did that - that is, until this contest. The next day, the rig operated just fine - nothing permanent happened.? Over the years, I've had this 7000 on two DXpeditions, many hours mobile, many hours portable with no problems. Has it become elderly and finicky about duty cycle? Like me?
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My question is: Is there a slick way to ventilate an IC-7000 to slow the temperature rise?
?
My "nuclear option" is to sell it and buy a 100W amp for my IC-705. Sort of like selling a racehorse.?
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Any suggestions would be appreciated.
?
73, Larry W7DGP
Re: Overheating during a contest

 

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My IC7000 has ran hot since new, and I never really worried about it. ( on most days all day). Then I read about a fan mod where a simple mod would allow fan to run continuously.
I did the mod and it runs very cool now all day. Admittedly, I spend a lot of time receiving with very little transmitting each day.
I believe the cooler running is probably better for the radio.
There are a couple of different fan mods on the internet, so have a look at them and decide which is best for you.
Hope this helps.
73 Neil ZL3ADC


On 28 Dec 2024, at 12:15?PM, Larry Ryan via groups.io <llryan@...> wrote:

?
This fall, I was participating in the WA QSO party (Salmon Run) on CW. The 2nd day, 4 hr before time was up, I was running (as opposed to search and pounce) on 15 and 10M. The 7000 was at full power, WinKeyer USB/N1MM, an end fed HW with SWR indicating less than 1.5. I was making a fair number of contacts when I saw my output drop and saw the temp icon showing in the red. I had been operating fast and furious since the morning - I would guess 10 hours. Ambient temps in the 70s.? No problem on day one but it was 50% CW and 50% SSB.? Since I've bought this rig in 2007, it has never had this overheating problem. I remember on this group (Yahoo group days) there was a lot of discussion about overheating 7000s but mine never did that - that is, until this contest. The next day, the rig operated just fine - nothing permanent happened.? Over the years, I've had this 7000 on two DXpeditions, many hours mobile, many hours portable with no problems. Has it become elderly and finicky about duty cycle? Like me?
?
My question is: Is there a slick way to ventilate an IC-7000 to slow the temperature rise?
?
My "nuclear option" is to sell it and buy a 100W amp for my IC-705. Sort of like selling a racehorse.?
?
Any suggestions would be appreciated.
?
73, Larry W7DGP
Overheating during a contest

 

This fall, I was participating in the WA QSO party (Salmon Run) on CW. The 2nd day, 4 hr before time was up, I was running (as opposed to search and pounce) on 15 and 10M. The 7000 was at full power, WinKeyer USB/N1MM, an end fed HW with SWR indicating less than 1.5. I was making a fair number of contacts when I saw my output drop and saw the temp icon showing in the red. I had been operating fast and furious since the morning - I would guess 10 hours. Ambient temps in the 70s.? No problem on day one but it was 50% CW and 50% SSB.? Since I've bought this rig in 2007, it has never had this overheating problem. I remember on this group (Yahoo group days) there was a lot of discussion about overheating 7000s but mine never did that - that is, until this contest. The next day, the rig operated just fine - nothing permanent happened.? Over the years, I've had this 7000 on two DXpeditions, many hours mobile, many hours portable with no problems. Has it become elderly and finicky about duty cycle? Like me?
?
My question is: Is there a slick way to ventilate an IC-7000 to slow the temperature rise?
?
My "nuclear option" is to sell it and buy a 100W amp for my IC-705. Sort of like selling a racehorse.?
?
Any suggestions would be appreciated.
?
73, Larry W7DGP
Re: IC-7000 corrupted eeprom

 

Hi Tony
?Prior to plugging my logic board ( the small board in a metal cage that plugs into the main board ) into the Japanese radio it had general coverage RX and 6m band present.
My radio also has the MARS mod enabled.
On the Japanese radio - also has MARS MOD done prior to purchase and it did not have 6m or general coverage.
All I did was to plug my logic board into the Japan radio and it behaved the same as the Japanese logic board did - no 6m and general coverage.
When i returned my logic board to my 7000 the radio lost general coverage and 6m band and now is identical to the Japanese version.
I suspect the eeprom because i took a screen shot of the main tuning page which displays version information before and after which clearly shows some data missing.
See photos attached, before and after.
As you can see under the adjust it now is missing 602FDF0 - not sure what this means - the Japanese radio also is missing this.
I cant find this string anywhere in the eeprom and because i didn't take a copy before hand i don't know if this string has anything to do with what occurred or where is resides - eeprom or the renesas HD64F2377.
I can see all other data from the tuning pages in the eeprom including firmware version data.
regards
James
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before.jpg
after.jpg

Re: IC-7000 corrupted eeprom

 

(2020) Japanese bandplan includes 6m.
Not sure if you have put one of your 7000 boards inside a Japanese 7000 permanently but there is a diode matrix in the 7000 just like most modern transceivers so you might want to check which diodes are there and which are not.
People tend to generalise calling boards 'the logic board' so I'm not really sure what you changed.
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I bought a new 7300 from Japan recently and the only gaps in coverage compared to UK bands were in the 80m and 40m bands. All the rest were the same including full 6m to 54Mhz. It was easy to change diodes on the matrix to bring it to UK spec.
I don't think I would jump to suspecting something became corrupted and would check the matrix and connections first.
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rgds
Tony deG7WHK
Re: IC-7000 corrupted eeprom

 

Hi Mark
No it didn't have those features.
If anyone has a faulty logic board that is not from a Japanese radio I may be able to read the contents of the eeprom to make a comparison .
There are 256kb of memory in the eeprom and without knowing what location does what it is hard to work out.
I can see where the tuning parameter settings for the radio are kept and they have not changed .
The chip is also used to store memory channels and I can see that information as well.
James?
Re: IC-7000 corrupted eeprom

 

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Did the Japenese version come with general coverage and 6m? I believe no.

Mark KC9C

-------- Original message --------
From: "James Tiberius via groups.io" <nono2212000@...>
Date: 12/25/24 3:52 PM (GMT-08:00)
Subject: [ic7000] IC-7000 corrupted eeprom

Hi All
Hope all are having a good xmas and wish all the best for 2025.
Just reaching out to anyone in the group that has taken a download of their eeprom.
I have a feeling my one is corrupt after i plugged my logic board into a japanese version radio and now my 6m band is missing and don't get general coverage receive.
This is the same logic board that has an audio issue from another post? ( still waiting on some parts to arrive )
I should have taken a download before the operation.
If anyone has a ICSP programmer like my ASIX Forte then downloading the contents is fairly straight forward.
Any help would be appreciated
James
IC-7000 corrupted eeprom

 

Hi All
Hope all are having a good xmas and wish all the best for 2025.
Just reaching out to anyone in the group that has taken a download of their eeprom.
I have a feeling my one is corrupt after i plugged my logic board into a japanese version radio and now my 6m band is missing and don't get general coverage receive.
This is the same logic board that has an audio issue from another post? ( still waiting on some parts to arrive )
I should have taken a download before the operation.
If anyone has a ICSP programmer like my ASIX Forte then downloading the contents is fairly straight forward.
Any help would be appreciated
James

PXL_20241225_225517971.MP.jpg

Re: IC-7000 no rx and no sound out from speaker

 
Edited

Still waiting for my replacement part . Lost in transit so I ordered another one. Hopefully this one will arrive in the next week or two?
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Re: Intermittent Loss of Pre-Driver signal

 

IRFP260 is an unsuitable replacement for RF work.
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Think of it as a Cab tractor truck to replace a Toyota Corolla.
Its way to big, and its characteristics are not even a remote match.
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It should get mostly warm not hot under normal use.
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--
Allison
Re: PTT switch source ?

 

The Icom HM-151, HM-133 and HM-207 microphones have the same hardware and transmit the same keycodes. Only the silicone rubber key legend membranes differ.? There are inexpensive Chinese clones of the HM-133 available on Amazon, ebay and AliExpress.? So, if your expensive HM-151 or HM-207 microphone fails, buy the cheap HM-133 clone and swap the key legend membranes.??
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