Date   

Re: [IC-7000] Using the 13 pin ACC socket for PTT

Steve W3AHL
 

The terminal strip may be convenient, but if it leaves the wires unshielded, RFI may be a problem.  On the 7K ACC port pin 10 (audio input) is especially prone to picking up RF, as I noted in a recent prior post.  Pin 11 (audio output) may be a problem also, depending on the device it is connected to.  

On slow digital modes you may just notice more scrambled characters.  On Pactor, even with an intact cable shield properly terminated, a little RF near the cable can prevent connecting (especially when operating portable with a less than ideal antenna and ground).

I always put a 68K ohm resistor in series with pin 10, inside the DIN-13 connector shield and increase the audio level to the 7K.  This reduces the ratio of RFI to audio.  This fix is documented in the Winlink FAQ since it was such a ccommon problem.

The better solution is to use the DATA port in the 7K, but the ACC port can work....

Steve, W3AHL


---In ic7000@..., <rkmr15203@...> wrote :


On Nov 29, 2017, at 05:36, Roger groups@... [ic7000] <ic7000@...> wrote:

I'm planning to use the 13 pin ACC socket for FT8 and other digital 
modes and the manual is not clear to me in respect to the PTT. In case 
you're wondering why I don't use the DATA socket I'm intend to make use 
of the 13.8V output to power the interface.

I believe that to use this socket as a PTT on all bands I have to set 
"VSEND Select" to "Off" and use pin 3 to transmit.

An I correct or what should I be doing?

73 and kind regards

Roger, GW4HZA


When I do a new radio, I take all pinouts from any socket out to terminal strips, on the back of the desk.

Maybe I will never use some, but they are ready and I never have to move the radio or take the &*%$# Din plug apart again.


LDG used to make such a box, but not listed.


Re: [IC-7000] Using the 13 pin ACC socket for PTT

Steve W3AHL
 


Re: [IC-7000] Using the 13 pin ACC socket for PTT

Steve W3AHL
 


Re: Using the 13 pin ACC socket for PTT

Steve W3AHL
 

Correct.

Steve, W3AHL

---In ic7000@..., <groups@...> wrote :

I'm planning to use the 13 pin ACC socket for FT8 and other digital
modes and the manual is not clear to me in respect to the PTT. In case
you're wondering why I don't use the DATA socket I'm intend to make use
of the 13.8V output to power the interface.

I believe that to use this socket as a PTT on all bands I have to set
"VSEND Select" to "Off" and use pin 3 to transmit.

An I correct or what should I be doing?

73 and kind regards

Roger, GW4HZA


Re: [IC-7000] Using the 13 pin ACC socket for PTT

r norris
 


On Nov 29, 2017, at 05:36, Roger groups@... [ic7000] <ic7000@...> wrote:

I'm planning to use the 13 pin ACC socket for FT8 and other digital 
modes and the manual is not clear to me in respect to the PTT. In case 
you're wondering why I don't use the DATA socket I'm intend to make use 
of the 13.8V output to power the interface.

I believe that to use this socket as a PTT on all bands I have to set 
"VSEND Select" to "Off" and use pin 3 to transmit.

An I correct or what should I be doing?

73 and kind regards

Roger, GW4HZA


When I do a new radio, I take all pinouts from any socket out to terminal strips, on the back of the desk.

Maybe I will never use some, but they are ready and I never have to move the radio or take the &*%$# Din plug apart again.


LDG used to make such a box, but not listed.


Using the 13 pin ACC socket for PTT

Roger Taylor
 

I'm planning to use the 13 pin ACC socket for FT8 and other digital
modes and the manual is not clear to me in respect to the PTT. In case
you're wondering why I don't use the DATA socket I'm intend to make use
of the 13.8V output to power the interface.

I believe that to use this socket as a PTT on all bands I have to set
"VSEND Select" to "Off" and use pin 3 to transmit.

An I correct or what should I be doing?

73 and kind regards

Roger, GW4HZA


Re: [IC-7000] IC7000 switching on but no tx/rx

k4pwo@...
 

Stuck or none functional band pass filter relay.



Perry



From: ic7000@yahoogroups.com [mailto:ic7000@yahoogroups.com]
Sent: Tuesday, November 28, 2017 3:22 AM
To: ic7000@yahoogroups.com
Subject: [IC-7000] IC7000 switching on but no tx/rx








My 7k has been perfectly working for the last 7 years or so, yesterday I
switched on and signals were coming in on 40m, changed band and then
nothing, all bands dead save for a small hash, checked all connections and
still the same, no tx either, just like no antenna connected. Switched off
and on again and fully operational again.. Ideas??

73 Max M0GHQ


Re: Signalink USB

Joe Krout <joekrout@...>
 

I would lean towards the 6 pin

Easier to obtain
Easier to solder larger pins
Interchange, Cable is compatible with other brands/models 
13 pin jack is available for other uses, amplifier keying

Hope this helps
Joe
KR0UT


Re: IC-700 with MFJ-939i

Steve W3AHL
 

Contact:

Icom Authorized Service Center – Michigan
SAR Technical Services, Inc.
1792 Nash Drive
St. Joseph, MI 49085
Phone: (269) 429-2334

Steve, W3AHL

---In ic7000@..., <k3ydx@...> wrote :

I wanted to ask the group about this recent experience I have had with my IC-7000.

During the recent ARRL sweepstakes phone contest I operated using my 7000 with a newly acquired
MFJ-939i auto antenna tuner.  I was careful to note the instruction with the MFJ to make certain the jumper,
J4, was removed before using it with the 7000.

I was operating using a dipole cut roughly for 75 meters and fed with 50 feet of coax to the tuner which was
connected to the 7000.  Everything worked well throughout the time I was on Saturday night and well into
Sunday late afternoon.  At some point late Sunday afternoon, I can't remember what band I was on, I smelled
that dreaded electrical smell and saw smoke coming from the back top of the radio.  I quickly shut things down.

The next day I removed the top and bottom covers on the 7000 and could not observe any burned components
or circuit board traces.  Applying power to the radio revealed no additional smoke issues and it appeared every
function was present with the exception of the lack of any power output on any band, HF or VHF or UHF.

Has anyone experienced this failure with the MFJ-939i and their IC-7000 and, given the symptom of no power out
on any band is it likely the pre driver is bad or the driver board if they are separate boards.  I would welcome any suggestions for repair locations as I am in the Outer Banks, NC for the foreseeable future.

Thanks and 73

Hank 
K3YDX

Virus-free. www.avast.com


Re: [IC-7000] IC-700 with MFJ-939i

William Reynolds
 

Same thing happened to mine in February, I sent it to the icom service center in Michigan and it came back working better than before.


6Y5WW-William
I HAM Radio Active



From: ic7000@... on behalf of 'Paul Hansen' pwhansen@... [ic7000]
Sent: 28 November 2017 00:49
To: ic7000@...
Subject: RE: [IC-7000] IC-700 with MFJ-939i
 
 

The driver transistor on the driver board burned up. It’s likely the board is destroyed too. It’s a relatively common failure in IC-7000’s although Icom tried some modifications to stabilize the driver. They no longer have this part. You’ll have to contact me off list for any more information. I’m in Georgia.

 

Thank you,

 

Paul W. Hansen, W6XA

 

 

From: ic7000@... [mailto:ic7000@...]
Sent: November 27, 2017 21:08
To: ic7000@...
Subject: [IC-7000] IC-700 with MFJ-939i

 




I wanted to ask the group about this recent experience I have had with my IC-7000.

 

During the recent ARRL sweepstakes phone contest I operated using my 7000 with a newly acquired

MFJ-939i auto antenna tuner.  I was careful to note the instruction with the MFJ to make certain the jumper,

J4, was removed before using it with the 7000.

 

I was operating using a dipole cut roughly for 75 meters and fed with 50 feet of coax to the tuner which was

connected to the 7000.  Everything worked well throughout the time I was on Saturday night and well into

Sunday late afternoon.  At some point late Sunday afternoon, I can't remember what band I was on, I smelled

that dreaded electrical smell and saw smoke coming from the back top of the radio.  I quickly shut things down.

 

The next day I removed the top and bottom covers on the 7000 and could not observe any burned components

or circuit board traces.  Applying power to the radio revealed no additional smoke issues and it appeared every

function was present with the excep! tion of the lack of any power output on any band, HF or VHF or UHF.

 

Has anyone experienced this failure with the MFJ-939i and their IC-7000 and, given the symptom of no power out

on any band is it likely the pre driver is bad or the driver board if they are separate boards.  I would welcome any suggestions for repair locations as I am in the Outer Banks, NC for the foreseeable future.

 

Thanks and 73

 

Hank 

K3YDX

 

Virus-free. www.avast.com





Re: [IC-7000] Signalink USB

Mystic Treg
 

The mic not muting when using the 13-pin is the only difference I have seen.

KD8M


J Tregre,
KD8M,
on behalf of
Her Imperial Majesty,
Mystic, Kitty

On Mon, Nov 27, 2017 at 7:12 PM, 'lmlangenfeld@...' lmlangenfeld@... [ic7000] <ic7000@...> wrote:
 

Could I ask those of you using a Signalink USB with your IC-7000 to weigh in on the 6-pin vs. 13-pin question?  (I am already aware of the mic muting issue.)

Thanks,

Mark -- WA9ETW



IC7000 switching on but no tx/rx

Max Cotton
 

My 7k has been perfectly working for the last 7 years or so, yesterday I switched on and signals were coming in on 40m, changed band and then nothing, all bands dead save for a small hash, checked all connections and still the same, no tx either, just like no antenna connected. Switched off and on again and fully operational again.. Ideas??

73 Max M0GHQ


Signalink USB

Mark Langenfeld
 

Could I ask those of you using a Signalink USB with your IC-7000 to weigh in on the 6-pin vs. 13-pin question?  (I am already aware of the mic muting issue.)

Thanks,

Mark -- WA9ETW


Re: [IC-7000] IC-700 with MFJ-939i

Paul Hansen
 

The driver transistor on the driver board burned up. It’s likely the board is destroyed too. It’s a relatively common failure in IC-7000’s although Icom tried some modifications to stabilize the driver. They no longer have this part. You’ll have to contact me off list for any more information. I’m in Georgia.

 

Thank you,

 

Paul W. Hansen, W6XA

 

 

From: ic7000@... [mailto:ic7000@...]
Sent: November 27, 2017 21:08
To: ic7000@...
Subject: [IC-7000] IC-700 with MFJ-939i

 




I wanted to ask the group about this recent experience I have had with my IC-7000.

 

During the recent ARRL sweepstakes phone contest I operated using my 7000 with a newly acquired

MFJ-939i auto antenna tuner.  I was careful to note the instruction with the MFJ to make certain the jumper,

J4, was removed before using it with the 7000.

 

I was operating using a dipole cut roughly for 75 meters and fed with 50 feet of coax to the tuner which was

connected to the 7000.  Everything worked well throughout the time I was on Saturday night and well into

Sunday late afternoon.  At some point late Sunday afternoon, I can't remember what band I was on, I smelled

that dreaded electrical smell and saw smoke coming from the back top of the radio.  I quickly shut things down.

 

The next day I removed the top and bottom covers on the 7000 and could not observe any burned components

or circuit board traces.  Applying power to the radio revealed no additional smoke issues and it appeared every

function was present with the excep! tion of the lack of any power output on any band, HF or VHF or UHF.

 

Has anyone experienced this failure with the MFJ-939i and their IC-7000 and, given the symptom of no power out

on any band is it likely the pre driver is bad or the driver board if they are separate boards.  I would welcome any suggestions for repair locations as I am in the Outer Banks, NC for the foreseeable future.

 

Thanks and 73

 

Hank 

K3YDX

 

Virus-free. www.avast.com





Re: [IC-7000] IC-700 with MFJ-939i

Geoff Williams <geoff_williams@...>
 

I'm sorry for you Hank, but I think you have done your PA Driver. It's located under the Main board. It is used on all bands as separate power output Fets are used for HF, VHF and UHF.

[image1.jpeg]

Sent from my iPad.

On 28 Nov 2017, at 11:20 AM, Hank Hanburger k3ydx@yahoo.com<mailto:k3ydx@yahoo.com> [ic7000] <ic7000@yahoogroups.com<mailto:ic7000@yahoogroups.com>> wrote:



I wanted to ask the group about this recent experience I have had with my IC-7000.

During the recent ARRL sweepstakes phone contest I operated using my 7000 with a newly acquired
MFJ-939i auto antenna tuner. I was careful to note the instruction with the MFJ to make certain the jumper,
J4, was removed before using it with the 7000.

I was operating using a dipole cut roughly for 75 meters and fed with 50 feet of coax to the tuner which was
connected to the 7000. Everything worked well throughout the time I was on Saturday night and well into
Sunday late afternoon. At some point late Sunday afternoon, I can't remember what band I was on, I smelled
that dreaded electrical smell and saw smoke coming from the back top of the radio. I quickly shut things down.

The next day I removed the top and bottom covers on the 7000 and could not observe any burned components
or circuit board traces. Applying power to the radio revealed no additional smoke issues and it appeared every
function was present with the exception of the lack of any power output on any band, HF or VHF or UHF.

Has anyone experienced this failure with the MFJ-939i and their IC-7000 and, given the symptom of no power out
on any band is it likely the pre driver is bad or the driver board if they are separate boards. I would welcome any suggestions for repair locations as I am in the Outer Banks, NC for the foreseeable future.

Thanks and 73

Hank
K3YDX

[https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif]<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link>




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Re: [IC-7000] IC-700 with MFJ-939i

ww3s@...
 

More than likely the driver board….. its under the pa board and not visible unless you pull the pa board…. mines blown twice now, apparently an issue when using non resonant antenna….sarts , I think that's it, in Michigan does great work…. mine last blew during field day, still sitting here unrepaired….
Sent from my Windows tablet

From: John Kramer jkramer@... [ic7000]
Sent: ‎Monday‎, ‎November‎ ‎27‎, ‎2017 ‎4‎:‎07‎ ‎PM
To: John Kramer jkramer@... [ic7000]

 

I wanted to ask the group about this recent experience I have had with my IC-7000.

During the recent ARRL sweepstakes phone contest I operated using my 7000 with a newly acquired
MFJ-939i auto antenna tuner.  I was careful to note the instruction with the MFJ to make certain the jumper,
J4, was removed before using it with the 7000.

I was operating using a dipole cut roughly for 75 meters and fed with 50 feet of coax to the tuner which was
connected to the 7000.  Everything worked well throughout the time I was on Saturday night and well into
Sunday late afternoon.  At some point late Sunday afternoon, I can't remember what band I was on, I smelled
that dreaded electrical smell and saw smoke coming from the back top of the radio.  I quickly shut things down.

The next day I removed the top and bottom covers on the 7000 and could not observe any burned components
or circuit board traces.  Applying power to the radio revealed no additional smoke issues and it appeared every
function was present with the exception of the lack of any power output on any band, HF or VHF or UHF.

Has anyone experienced this failure with the MFJ-939i and their IC-7000 and, given the symptom of no power out
on any band is it likely the pre driver is bad or the driver board if they are separate boards.  I would welcome any suggestions for repair locations as I am in the Outer Banks, NC for the foreseeable future.

Thanks and 73

Hank 
K3YDX

Virus-free. www.avast.com



IC-700 with MFJ-939i

Hank Hanburger
 

I wanted to ask the group about this recent experience I have had with my IC-7000.

During the recent ARRL sweepstakes phone contest I operated using my 7000 with a newly acquired
MFJ-939i auto antenna tuner.  I was careful to note the instruction with the MFJ to make certain the jumper,
J4, was removed before using it with the 7000.

I was operating using a dipole cut roughly for 75 meters and fed with 50 feet of coax to the tuner which was
connected to the 7000.  Everything worked well throughout the time I was on Saturday night and well into
Sunday late afternoon.  At some point late Sunday afternoon, I can't remember what band I was on, I smelled
that dreaded electrical smell and saw smoke coming from the back top of the radio.  I quickly shut things down.

The next day I removed the top and bottom covers on the 7000 and could not observe any burned components
or circuit board traces.  Applying power to the radio revealed no additional smoke issues and it appeared every
function was present with the exception of the lack of any power output on any band, HF or VHF or UHF.

Has anyone experienced this failure with the MFJ-939i and their IC-7000 and, given the symptom of no power out
on any band is it likely the pre driver is bad or the driver board if they are separate boards.  I would welcome any suggestions for repair locations as I am in the Outer Banks, NC for the foreseeable future.

Thanks and 73

Hank 
K3YDX

Virus-free. www.avast.com


Re: [IC-7000] Re: Icom 7000 Remote operation using HRD

Steve W3AHL
 

The DATA port is a better choice than the ACC port.  It uses a higher audio level than ACC, making it less susceptible to RFI.  More important though is the ACC port audio is mixed with any MIC audio if the MIC is plugged in (even if its PTT is not active), which can degrade the digital signal with ambient room noise.

If the ACC port is used, I suggest putting a 68K resistor in series with the audio input. The resistor should be mounted inside the DIN-13 shell at the 7K, right at the connector pin.  This increases the audio input level  required to about 700mv., reducing the effect of RFI on the cable.  This doesn't fix the problem with MIC audio being mixed in though.

Of course Type 31 ferrite chokes should still be used on both ends of the interconnecting cables to further reduce RFI.

Steve, W3AHL

---In ic7000@..., <k4pwo@...> wrote :

The mike and speaker audio I/O are poor choices for digital modes. The mike input is low level making noise and RF sensitivity issues more likely. Most newer rigs (the 7000 included) have audio tailoring equalizers which have to be set to flat response for digital and changed for voice modes, a major pain. The speaker audio is tied to the volume control which means constantly riding the control when you switch bands, modes, digital/voice, etc.

You are much better off using the accessory connector on the back for digital.

You can “roll your own” with an external USB sound device and a simple audio isolation (600 ohm to 600 ohm transformers) circuit. You’ll also need a PTT method supported by your digital software such as the RTS line of a serial port, CAT PTT, or VOX. Hardware PTT via RTS is the best method with CAT second and VOX as the last resort. If your PC doesn’t have a “real” 9-pin serial port you can use a USB to TTL level adapter and an optoisolator like a 4N33 for PTT. I’m in the process of writing up a modification for the Signalink USB to make it hardware PTT instead of VOX that will be posted to my Web site in the next few days. The basic circuit can be used with “DIY” interfaces with no trouble.



Perry K4PWO

..snip..


Re: [IC-7000] Re: Icom 7000 Remote operation using HRD

Mark Brueggemann
 

From: "k4pwo@comcast.net [ic7000]"


I’m in the process of writing up a modification for the Signalink USB
to make it hardware PTT instead of VOX
This caught my attention, will be looking to see what you've come up with. I've got a couple of these things I use and while I find that their implementation of VOX is workable it's curious why they didn't come up with a better way.


Mark K5LXP
Albuquerque, NM


Re: [IC-7000] Re: Icom 7000 Remote operation using HRD

k4pwo@...
 

The mike and speaker audio I/O are poor choices for digital modes. The mike input is low level making noise and RF sensitivity issues more likely. Most newer rigs (the 7000 included) have audio tailoring equalizers which have to be set to flat response for digital and changed for voice modes, a major pain. The speaker audio is tied to the volume control which means constantly riding the control when you switch bands, modes, digital/voice, etc.

You are much better off using the accessory connector on the back for digital.

You can “roll your own” with an external USB sound device and a simple audio isolation (600 ohm to 600 ohm transformers) circuit. You’ll also need a PTT method supported by your digital software such as the RTS line of a serial port, CAT PTT, or VOX. Hardware PTT via RTS is the best method with CAT second and VOX as the last resort. If your PC doesn’t have a “real” 9-pin serial port you can use a USB to TTL level adapter and an optoisolator like a 4N33 for PTT. I’m in the process of writing up a modification for the Signalink USB to make it hardware PTT instead of VOX that will be posted to my Web site in the next few days. The basic circuit can be used with “DIY” interfaces with no trouble.



Perry K4PWO



From: ic7000@yahoogroups.com [mailto:ic7000@yahoogroups.com]
Sent: Tuesday, November 14, 2017 6:48 AM
To: ic7000@yahoogroups.com
Subject: Re: [IC-7000] Re: Icom 7000 Remote operation using HRD








You can use the mike jack and speaker jack to connect the radio to the computer. You should use some sort of isolation, such as transformers.

I am at the same juncture that you are at setting up a digital station. I want to try 6 meter JT8 mode digital with my Elecraft K3.

I have two choices that I see for my situation. The first choice is to buy a cheap $5-10 sound card off of eBay, make up some cables, and roll my own. Then I'm on my own to make it work with little or no support. I may take this route, but my time constraints and frustration factors come to mind.

The second choice would be to purchase a product like the Tiger Signalink USB sound card and the cable kit for the radio. This option is the easiest plug-and-play way to get started and provides you reasonable telephone support to get it up and running. There are probably many ham users out there with the IC-7000--Signalink---HRD setup out there that can also help you. You say that you have the paid version of HRD so they should be able to help you too. Lots of support available in this second option. There may also be some YahooGroups lists that can help.

If you do choose buying something like the Signalink or RigBlaster I suggest that you look at the online reviews first.

73, Joe, K1ike

On 11/13/2017 9:54 PM, va3qb.ve3vwd@gmail.com <mailto:va3qb.ve3vwd@gmail.com> [ic7000] wrote:

Thanks



But how does the audio get from the Rig to the computer ?





73

Bill

VA3QB

_____

Posted by: va3qb.ve3vwd@gmail.com <mailto:va3qb.ve3vwd@gmail.com>

_____












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