Date   

Re: restarting

Ruben .
 

It is common for radios to restart like that if the power source drops below the required voltage. Be sure you have a large enough power supply.

Ruben
WA2NBL



On May 21, 2022, at 2:05 PM, Thomas Mccain <temac@...> wrote:

Just got a new ic 7000 installed don't have the HD antenna attached,  but the vhf/uh is. While in vhf mode I key up, the radio shuts down and restarts. Is this caused by tmnot having a HD antenna attached or other problem?


Re: restarting

 

You may have a bad connection in the power cable. Corroded fuse holder etc are common.
When the current draw goes up the voltage drops to the point where the radio shuts off. Check with a meter oer a light bulb across the power. The 4 pin tuner jack has the 13.8 voltage on it and is a good place to measure the voltage.


restarting

Thomas Mccain
 

Just got a new ic 7000 installed don't have the HD antenna attached,  but the vhf/uh is. While in vhf mode I key up, the radio shuts down and restarts. Is this caused by tmnot having a HD antenna attached or other problem?


Re: modding the Driver board , so it does not fry,

 

Per the tuner statement, I lost a driver when I had an auto tuner go crazy when an antenna was connected incorrectly (wrong antenna!).
This is the only time I had a driver issue on one of my IC-7000


Re: modding the Driver board , so it does not fry,

davebb123456
 

Thanks Steve
its a smd Self recovery fuse i am going to fit
on trx bench on youtube had some that the driver was badly burnt, but he did not know how it was used,
Thanks again,
Thanks Dave


Re: modding the Driver board , so it does not fry,

Steve W3AHL
 

I haven't seen many driver board failures personally (I typically only repair 7K's for local hams over the past 15 years, so I don't see a lot of units).  I have looked into the driver's design and signal levels at various drive levels and on all bands, while using an auto-tuner into various mismatches.  I do feel that antenna tuners and perhaps operation at LOW power seem to be a somewhat common thread for units that have multiple driver failures, but haven't seen direct evidence of it on units I've worked on. 

Many operators use antenna tuners to try to match antennnas well beyond the tuner's design spec.  This often damages the tuner, which then damages the radio.  Poor connections in the feed line and antenna are often intrmittent problems that lead to voltage/current transients that can damage the radio.  I feel that poor installations damage more radios than design flaws in the radio itself.

The added resistor change issued by icom was only for certain countries that had a different frequency range or band -- I forget the details.  Several postings indicated it was not effective.

Thermal measurements of the driver case don't indicate that the lack of thermal compound is a problem, but I always apply it when reinstalling the device. 

In short, I haven't encountered enough driver failures on rigs that I knew how they were being used at the time, to have an opinion about what the root cause of the failure is and what the proper fixes are.  

I doubt that a resettable circuit breaker will trip fast enough to protect the circuit, but haven't looked at their spec's for years, so maybe some exist.

The HF and VHF PA's will have factory-applied thermal compound.

My two 7K's are about 12 & 16 years old and had fairly heavy use (until the past few years), mainly mobile and portable, HF-UHF.  I've only fixed my radios 3 times and all of the failures were due to problems external to the radio.  I've also replaced the HM-151 mic switches with similar better-sealed switched when the original ones failed and replaced the poorly designed ATC style fuse holders used on some power cables with automotive style holders that bite through oxidation on the fuse blades.  

Steve, W3AHL


Re: 430 final idle current now good and set

davebb123456
 

Hi Steve
Yes i did all of the uhf and vhf Settings as i was in the menu, i did that this morning ,i found an old network cable and wired a switch and connected it to my Marconi 2955 and used the audio gen in that, i tested the output voltage of the marconi with my fluke and it was spot on,
and for the rf power i used my digital 4391 bird meter,
what do you think about the driver board mods,
Thanks Dave 2E0DMB


Re: 430 final idle current now good and set

Steve W3AHL
 

Dave,

Glad it fixed your 7K's UHF problem.  It's always good to know there are still hams motivated to repair their equipment.

Hopefully you'll do the other UHF TX power adjustments now that the idle current is fixed.

Steve, W3AHL


Re: modding the Driver board , so it does not fry,

Joe Krout
 

The IT-100 when connected via the tuning cable sets the output power to 10 watts while tuning via the tune button. 

Granted, it is possible to tune at full power manually.

While not a perfect solution,  its the best I have found. 
Good luck on disassembly.


On Tue, May 10, 2022, 10:18 AM davebb123456 <davidbrowne76@...> wrote:
Hi Joe
the only thing is with a auto tuner, when tuning you are putting the radio into high vswr when it is tuning, 
i will be using my radio with a  screw driver antenna ,
My driver board is still good, i do not know what revision it is , until i lift the PA board, i will do this today or tomorrow ,
as i can see that there is no heat sink compound on the driver board, and i will re-grease the other PA if dry like the uhf output was,
Thanks Dave


Re: modding the Driver board , so it does not fry,

davebb123456
 

Hi Joe
the only thing is with a auto tuner, when tuning you are putting the radio into high vswr when it is tuning, 
i will be using my radio with a  screw driver antenna ,
My driver board is still good, i do not know what revision it is , until i lift the PA board, i will do this today or tomorrow ,
as i can see that there is no heat sink compound on the driver board, and i will re-grease the other PA if dry like the uhf output was,
Thanks Dave


Re: modding the Driver board , so it does not fry,

Joe Krout
 

The driver board is a definite weak spot. I've blown a couple up over the years.  The best solution I have found is to always use a good auto tuner like the LDG IT-100, even when using a resonate antenna. Not a perfect solution, but some added insurance. 

Joe KR0UT


modding the Driver board , so it does not fry,

davebb123456
 

modding the Driver board  ?
i see that icom did mod the driver board with an added resister to stop it self oscillating, and burning it self out,  does this work ?
I have seen on youtube TRX Bench that he is still getting some 7000 with badly blown driver boards that already have this mod,
i am thinking of doing the modes by SV8YM, and i am going to fit a self re-settable 1.5amp fuse, for the driver board power supply, Doing these mods is no problem for my skills ,
Thanks Dave 2e0dmb


Re: in the adjustment menu i can not get the driver idle current down to the 1 amp setting

davebb123456
 

Hi i just wanted to link the out come to the original post,
Hi My mosfet RD60HUF arrived today from china i paid £18 for it i should have found out the price from icom for this mosfet, ,i put it on my peak atlas dca 75 pro and it tested ok, The print on it was a bit light,
and the legs were shorter then the data sheet and the drain leg did not have the slant,as on the data sheet, it may be second hand
I Just zoomed in to the photo that i took before fitting and i think it is used as you can see the indents from were the screws have been,, there was no trace of it being soldered before , the legs are longer then the one that came out,
i took photos just in case it did not work, But it did and it adjusted up to what it should 2.5a above the 00 reading that was 1.533amps, so i am very happy, the radio is not getting as hot, 
i put the old mosfet that i removed on my peak DCA75pro and yes it shows as 2 diodes,
Thanks for all of your help and info,
Thanks Dave 2E0DMB
 


430 final idle current now good and set

davebb123456
 
Edited

Hi My mosfet RD60HUF arrived today from china i paid £18 for it i should have found out the price from icom for this mosfet, ,i put it on my peak atlas dca 75 pro and it tested ok, The print on it was a bit light,
and the legs were shorter then the data sheet and the drain leg did not have the slant,as on the data sheet, it may be second hand
I Just zoomed in to the photo that i took before fitting and i think it is used as you can see the indents from were the screws have been,, there was no trace of it being soldered before , the legs are longer then the one that came out,
i took photos just in case it did not work, But it did and it adjusted up to what it should 2.5a above the 00 reading that was 1.533amps, so i am very happy, the radio is not getting as hot, 
i put the old mosfet that i removed on my peak DCA75pro and yes it shows as 2 diodes,
Thanks for all of your help and info,
Thanks Dave 2E0DMB


Re: OPC-1443

davebb123456
 

Ok ,you have to supply the cables, also the radio will run a bit cooler,
Thanks Dave

On Tue, 3 May 2022, 00:34 D C *Mac* Macdonald, <k2gkk@...> wrote:
Not yet.  Need to decide if I really need the device!

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 




From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 18:30
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
I don't know the cost of post to you, have you sent him a email?
Thanks Dave

On Tue, 3 May 2022, 00:27 D C *Mac* Macdonald, <k2gkk@...> wrote:
So about 55-60 USD?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 


From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 18:25
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
Hi 
The cost to the UK was €46.15 EUR
Thanks Dave

On Tue, 3 May 2022, 00:12 D C *Mac* Macdonald, <k2gkk@...> wrote:
What cost please?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 
From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 15:19
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
On 2 May 2022, at 16:17, Mark J Culross <mjculross@...> wrote:

Unfortunately, it doesn't look like he's doing direct sales anymore (text from the website link that was provided):


I bought DL5AL’s OPC-1443 alternative separation kit in May 2021 for 50 Euros. Attached is the manual.

If I needed another, I’d buy one from him again.

Contact him for one. 

https://dm5al.de/



Re: OPC-1443

D C *Mac* Macdonald
 

Not yet.  Need to decide if I really need the device!

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 




From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 18:30
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
I don't know the cost of post to you, have you sent him a email?
Thanks Dave

On Tue, 3 May 2022, 00:27 D C *Mac* Macdonald, <k2gkk@...> wrote:
So about 55-60 USD?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 


From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 18:25
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
Hi 
The cost to the UK was €46.15 EUR
Thanks Dave

On Tue, 3 May 2022, 00:12 D C *Mac* Macdonald, <k2gkk@...> wrote:
What cost please?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 
From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 15:19
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
On 2 May 2022, at 16:17, Mark J Culross <mjculross@...> wrote:

Unfortunately, it doesn't look like he's doing direct sales anymore (text from the website link that was provided):


I bought DL5AL’s OPC-1443 alternative separation kit in May 2021 for 50 Euros. Attached is the manual.

If I needed another, I’d buy one from him again.

Contact him for one. 

https://dm5al.de/



Re: OPC-1443

davebb123456
 

I don't know the cost of post to you, have you sent him a email?
Thanks Dave

On Tue, 3 May 2022, 00:27 D C *Mac* Macdonald, <k2gkk@...> wrote:
So about 55-60 USD?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 


From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 18:25
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
Hi 
The cost to the UK was €46.15 EUR
Thanks Dave

On Tue, 3 May 2022, 00:12 D C *Mac* Macdonald, <k2gkk@...> wrote:
What cost please?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 
From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 15:19
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
On 2 May 2022, at 16:17, Mark J Culross <mjculross@...> wrote:

Unfortunately, it doesn't look like he's doing direct sales anymore (text from the website link that was provided):


I bought DL5AL’s OPC-1443 alternative separation kit in May 2021 for 50 Euros. Attached is the manual.

If I needed another, I’d buy one from him again.

Contact him for one. 

https://dm5al.de/



Re: OPC-1443

D C *Mac* Macdonald
 

So about 55-60 USD?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 


From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 18:25
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
Hi 
The cost to the UK was €46.15 EUR
Thanks Dave

On Tue, 3 May 2022, 00:12 D C *Mac* Macdonald, <k2gkk@...> wrote:
What cost please?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 
From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 15:19
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
On 2 May 2022, at 16:17, Mark J Culross <mjculross@...> wrote:

Unfortunately, it doesn't look like he's doing direct sales anymore (text from the website link that was provided):


I bought DL5AL’s OPC-1443 alternative separation kit in May 2021 for 50 Euros. Attached is the manual.

If I needed another, I’d buy one from him again.

Contact him for one. 

https://dm5al.de/



Re: OPC-1443

davebb123456
 

Hi 
The cost to the UK was €46.15 EUR
Thanks Dave

On Tue, 3 May 2022, 00:12 D C *Mac* Macdonald, <k2gkk@...> wrote:
What cost please?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 
From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 15:19
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
On 2 May 2022, at 16:17, Mark J Culross <mjculross@...> wrote:

Unfortunately, it doesn't look like he's doing direct sales anymore (text from the website link that was provided):


I bought DL5AL’s OPC-1443 alternative separation kit in May 2021 for 50 Euros. Attached is the manual.

If I needed another, I’d buy one from him again.

Contact him for one. 

https://dm5al.de/



Re: OPC-1443

D C *Mac* Macdonald
 

What cost please?

73 - Mac, K2GKK/5
(Since 30 Nov 53)  
k2gkk hotmail com  
Oklahoma City, OK  
USAF & FAA (Ret.)  
Icom User a/o '72  
 

From: ic7000@groups.io <ic7000@groups.io> on behalf of davebb123456 <davidbrowne76@...>
Sent: Monday, May 2, 2022 15:19
To: ic7000@groups.io <ic7000@groups.io>
Subject: Re: [ic7000] OPC-1443
 
On 2 May 2022, at 16:17, Mark J Culross <mjculross@...> wrote:

Unfortunately, it doesn't look like he's doing direct sales anymore (text from the website link that was provided):


I bought DL5AL’s OPC-1443 alternative separation kit in May 2021 for 50 Euros. Attached is the manual.

If I needed another, I’d buy one from him again.

Contact him for one. 

https://dm5al.de/


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