Date   

Re: Ic 7000 problem

k4pwo <k4pwo@...>
 

The tuner connector is much easier to access and will show any voltage drop in the power jack/plug that is another trouble spot.

 

Perry K4PWO

 

From: ic7000@groups.io <ic7000@groups.io> On Behalf Of James F. Boehner, MD via Groups.Io
Sent: Sunday, March 25, 2018 6:34 AM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Yes. The power supply is staying at 13.5 volts, but strip each wire a bit between the fuses and the radio and measure the voltage there when you transmit.

 

When the fuse holder was the culprit, sometimes removing and reinserting the fuses several times temporarily fixed the problem..

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Sunday, March 25, 2018 1:21 AM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Jim on the fuse you are talking about the fuse on the power cable.   Right

 

Chris WB8YPO 

 

 

On Sat, Mar 24, 2018 at 8:43 PM -0700, "James F Boehner, MD via Groups.Io" <jboehner01=yahoo.com@groupsio> wrote:

Chris,

 

This is redundant to the last post, but the IC-7000’s had a major problem with the supplied fuse connectors and fuses. Even if not visibly corroded, this resulted in a major voltage drop, and caused the radio to behave like you describe. The 7000’s are very finicky on voltage.   Before you send it off for repair, it would serve you well to remove the fuse holders from the circuit entirely.  I have done so, and I connect the radio with power poles to a power pole strip that is fused.

 

I don’t remember the current requirement for the radio on transmit, but have at least a 20 Amp 12 VDC supply.

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Saturday, March 24, 2018 11:15 PM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Yep check that I just can’t find a reason for it. At fist I thought RF was the caused.  But that turned out not the cause.  It’s only when you key the mike it shuts down and restarts.

 

Chris WB8YPO

 



On Sat, Mar 24, 2018 at 8:03 PM -0700, "Alex Netherton" <w5alx-groups@...> wrote:

Make absolutely sure the fuses are not corroded and there is no voltage drop at the rig. When you key, check that the voltage does not drop too much, or the rig will shut down.

-- 
73 de W5ALX

HTTP:// blue ridge discovery.org

Alex Netherton

On March 24, 2018 at 10:39:31 PM, Chris (wb8ypo@frontiercom) wrote:

I have a ic 7000 that is giving me fits. What is happening. When I transmit the radio shuts down.  I have even tried it as one radio that is not separated. Any ideas out there would be helpful.  I’m just about to send it in if I can’t get a fix.  

Chris wb8ypo

 


Re: Ic 7000 problem

k4pwo <k4pwo@...>
 

Where did you check it?  To know what the radio is seeing you need to measure it at the tuner connector.

 

Perry K4PWO

 

From: ic7000@groups.io <ic7000@groups.io> On Behalf Of Chris
Sent: Saturday, March 24, 2018 11:51 PM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Checked and it stayed at 13.5 volts

 



On Sat, Mar 24, 2018 at 8:32 PM -0700, "N3EA" <amaslin@...> wrote:

Chris..have you checked your power supply voltage? What are you using for a power supply? Also, what is the SWR when transmit? Try transmitting into a dummy load and see what happens. Does the shut down happen at all power levels and on all bands?

Just some things to look into before you send it back.

Al, N3EA


Re: Radio goes deaf when changing frequencies

Steve W3AHL
 

If the previous suggestions don't help isolate the problem, it probably needs to trace the signal level from the antenna input through the IF sections to see where the problem is.  But it's probably not something you can repair and a Service Center would probably do a board replacement, which can be expensiive.  

Here are some random thoughts came to mind, but none converge on all of the symptoms you described:

  1. Since it seems to be heat related, a can of cold spray might help isolate it.  The DDS board would be my first guess, followed by the LOGIC board, then the MAIN. 
  2. Does changing the AGC setting affect the symptoms any?  Especially turning it off.  Page 74 of the manual.
  3. Since you seldom transmit, the relays on the PA board that select the correct low pass filter based upon tuned frequency may have accumulated oxide on the contacts and not make a good connection for the sub-microvolt received signal.  Transmitting into a dummy load on 160M-10M at full power for 30 seconds at a time, making several cycles through the bands might help.  But some of your symptoms don't make this seem like them real problem.
  4. The small gray coaxial cables that connect the DDS to the MAIN board can become intermittent.  Wiggling & pulling on both ends of the cables near the connector might make the problem better or worse.  If so, replace the cables.
  5. Are there any other subtle symptoms that you have seen?  Do VHF and UHF seem to work OK?  Any smells of overheated components that you noticed when the problem started getting worse?
Steve, W3AHL


On Sat, Mar 24, 2018 at 05:39 pm, Scott Remington wrote:
Hello All:

I've had my IC-7k for several years now and seen very little transmit time.  Mostly I use it to (try to) listen to the Shortwave Radiogram transmissions on the weekend.  A few months ago I began noticing that right after I turn the radio on and when it's cold, the receiver would go deaf when I change frequencies with the dial.  I'm not spinning the dial very fast and most of the time I'm in AM mode and anywhere from 5 MHz to 20 MHz.  Basically the background noise is reduced in level.  When this happens, I simply power cycle the radio and receive sensitivity comes back.  I got around this problem by simply turning the radio on Friday evenings to let it warm up and be ready for the weekend activities.  Lately it's gotten a LOT worse.  Tonight I could barely go more than a few kHz before sensitivity would go away.  I've also noticed that at times AM transmissions just don't sound "right".  I would switch to either LSB or USB and could tell the radio was off frequency.  Power cycling again and sideband reception sounds just like AM (well, as close as a dual sideband AM transmission could).  There's a local AM transmitter a couple miles from my home and before I could tune to the station and listen without issue.  It would be 60+ dB over but I could still receive it.  Enabling the attenuator dropped the signal strength as expected.  Tonight however, there was nothing I could do to bring that station in.  As I tuned toward it, the signal level would rise quickly and then the radio would go deaf.  If I enabled the attenuator, still deaf.  If I power cycled with the attenuator enabled, I'd get a fraction of a second of audio before it would go deaf.

Any ideas what could be going on with this thing?  This radio has had a pretty sheltered life and when it's been off, the antenna has been grounded, so I'd most likely discount any static hits.

Thanks in advance!
AA7SR


Re: Software and Info

rf_specialists
 

I’m a little confused, is this for IC-7000 or IC-7100 ? I mean this is a 7K group, right ?

I own both of them, but you should post this to the IC-7100 group and upload the file somewhere, because we don’t have “download points” to download it ;-)

Fanis
SV1BGM 


Re: Ic 7000 problem

ZL2AAA
 

 
Push a needle into the cables near the radio then measure under load
Morrie
 

Sent: Monday, March 26, 2018 12:34 AM
Subject: Re: [ic7000] Ic 7000 problem
 

Yes. The power supply is staying at 13.5 volts, but strip each wire a bit between the fuses and the radio and measure the voltage there when you transmit.

 

When the fuse holder was the culprit, sometimes removing and reinserting the fuses several times temporarily fixed the problem..

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Sunday, March 25, 2018 1:21 AM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Jim on the fuse you are talking about the fuse on the power cable.   Right

 

Chris WB8YPO

 



On Sat, Mar 24, 2018 at 8:43 PM -0700, "James F Boehner, MD via Groups.Io" <mailto:jboehner01@...> wrote:

Chris,

 

This is redundant to the last post, but the IC-7000’s had a major problem with the supplied fuse connectors and fuses. Even if not visibly corroded, this resulted in a major voltage drop, and caused the radio to behave like you describe. The 7000’s are very finicky on voltage.   Before you send it off for repair, it would serve you well to remove the fuse holders from the circuit entirely.  I have done so, and I connect the radio with power poles to a power pole strip that is fused.

 

I don’t remember the current requirement for the radio on transmit, but have at least a 20 Amp 12 VDC supply.

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Saturday, March 24, 2018 11:15 PM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Yep check that I just can’t find a reason for it. At fist I thought RF was the caused.  But that turned out not the cause.  It’s only when you key the mike it shuts down and restarts.

 

Chris WB8YPO

 




On Sat, Mar 24, 2018 at 8:03 PM -0700, "Alex Netherton" <w5alx-groups@...> wrote:

Make absolutely sure the fuses are not corroded and there is no voltage drop at the rig. When you key, check that the voltage does not drop too much, or the rig will shut down.

--
73 de W5ALX

HTTP:// blue ridge discovery.org

Alex Netherton

On March 24, 2018 at 10:39:31 PM, Chris (mailto:wb8ypo@...) wrote:

I have a ic 7000 that is giving me fits. What is happening. When I transmit the radio shuts down.  I have even tried it as one radio that is not separated. Any ideas out there would be helpful.  I’m just about to send it in if I can’t get a fix. 

Chris wb8ypo

 


Virus-free. www.avast.com


Software and Info

wb2ymu@...
 

Gentleman,

There is a great webpage for obtaining radio info and software for a wide variety of radios, including a working version of the cs-7000 software....It is called HAMFILES...

Webpage is...https://hamfiles.co.uk/index.php?page=downloads&type=entry&id=radio-programming%2Ficom-programming%2Ficom-cs-7100_rev1-0

Copy and paste and enjoy...

Jim
WB2YMU


Re: Ic 7000 problem

Chris
 

Thanks where going to try again




On Sun, Mar 25, 2018 at 11:12 AM -0700, "Daniel Rector" <rectordl@...> wrote:

I had this same problem with my 7000. I also thought it was RF. After reading these tips I inspected each of my fuses. The two inline fuses had a small line running across them. I sanded both sides and now I do not lose power even at 100 watts output. I will put new fuses in as soon as I get some. Thanks for the “tips” everyone!  NA4X


Re: Ic 7000 problem

Daniel Rector
 

I had this same problem with my 7000. I also thought it was RF. After reading these tips I inspected each of my fuses. The two inline fuses had a small line running across them. I sanded both sides and now I do not lose power even at 100 watts output. I will put new fuses in as soon as I get some. Thanks for the “tips” everyone!  NA4X


Re: Ic 7000 problem

wb2ymu@...
 

No, the whole power cable in general. From the fuse to the battery..The OEM issued cable is fine but not when making LONG power runs...if the radio is mounted in the back of the vehicle


Re: Ic 7000 problem

Chris
 

Will try that thanks




On Sun, Mar 25, 2018 at 8:08 AM -0700, "wb2ymu via Groups.Io" <wb2ymu@...> wrote:

Make sure you have the proper gauge wire, at least 10-12ga. It does draw amps and will shut down if wire gauge is to thin. Also check your antenna grounding.

I had the same problem. I ran the power cable straight to the battery, not chassis ground. I cleaned and tightened the antenna ground and re-checked SWR.

Problem gone..


Re: Ic 7000 problem

wb2ymu@...
 

Make sure you have the proper gauge wire, at least 10-12ga. It does draw amps and will shut down if wire gauge is to thin. Also check your antenna grounding.

I had the same problem. I ran the power cable straight to the battery, not chassis ground. I cleaned and tightened the antenna ground and re-checked SWR.

Problem gone..


Re: Ic 7000 problem

Chris
 

Thanks I’ll try that




On Sun, Mar 25, 2018 at 4:34 AM -0700, "James F. Boehner, MD via Groups.Io" <jboehner01@...> wrote:

Yes. The power supply is staying at 13.5 volts, but strip each wire a bit between the fuses and the radio and measure the voltage there when you transmit.

 

When the fuse holder was the culprit, sometimes removing and reinserting the fuses several times temporarily fixed the problem..

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Sunday, March 25, 2018 1:21 AM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Jim on the fuse you are talking about the fuse on the power cable.   Right

 

Chris WB8YPO 

 



On Sat, Mar 24, 2018 at 8:43 PM -0700, "James F Boehner, MD via Groups.Io" <jboehner01=yahoo.com@groupsio> wrote:

Chris,

 

This is redundant to the last post, but the IC-7000’s had a major problem with the supplied fuse connectors and fuses. Even if not visibly corroded, this resulted in a major voltage drop, and caused the radio to behave like you describe. The 7000’s are very finicky on voltage.   Before you send it off for repair, it would serve you well to remove the fuse holders from the circuit entirely.  I have done so, and I connect the radio with power poles to a power pole strip that is fused.

 

I don’t remember the current requirement for the radio on transmit, but have at least a 20 Amp 12 VDC supply.

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Saturday, March 24, 2018 11:15 PM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Yep check that I just can’t find a reason for it. At fist I thought RF was the caused.  But that turned out not the cause.  It’s only when you key the mike it shuts down and restarts.

 

Chris WB8YPO

 




On Sat, Mar 24, 2018 at 8:03 PM -0700, "Alex Netherton" <w5alx-groups@...> wrote:

Make absolutely sure the fuses are not corroded and there is no voltage drop at the rig. When you key, check that the voltage does not drop too much, or the rig will shut down.

-- 
73 de W5ALX

HTTP:// blue ridge discovery.org

Alex Netherton

On March 24, 2018 at 10:39:31 PM, Chris (wb8ypo@frontiercom) wrote:

I have a ic 7000 that is giving me fits. What is happening. When I transmit the radio shuts down.  I have even tried it as one radio that is not separated. Any ideas out there would be helpful.  I’m just about to send it in if I can’t get a fix.  

Chris wb8ypo

 


Re: UHF FM Transmit Power

k6msm@...
 

Thanks, all.  I'm not confident to solder something like this, so I'm sending to Icom.

I looked at replacing it yesterday at HRO, but I like the 7000 too much to go back to a VHF/UHF only rig.

Mike
K6MSM


Re: Ic 7000 problem

James F. Boehner, MD
 

Yes. The power supply is staying at 13.5 volts, but strip each wire a bit between the fuses and the radio and measure the voltage there when you transmit.

 

When the fuse holder was the culprit, sometimes removing and reinserting the fuses several times temporarily fixed the problem..

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Sunday, March 25, 2018 1:21 AM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Jim on the fuse you are talking about the fuse on the power cable.   Right

 

Chris WB8YPO 

 



On Sat, Mar 24, 2018 at 8:43 PM -0700, "James F Boehner, MD via Groups.Io" <jboehner01=yahoo.com@groupsio> wrote:

Chris,

 

This is redundant to the last post, but the IC-7000’s had a major problem with the supplied fuse connectors and fuses. Even if not visibly corroded, this resulted in a major voltage drop, and caused the radio to behave like you describe. The 7000’s are very finicky on voltage.   Before you send it off for repair, it would serve you well to remove the fuse holders from the circuit entirely.  I have done so, and I connect the radio with power poles to a power pole strip that is fused.

 

I don’t remember the current requirement for the radio on transmit, but have at least a 20 Amp 12 VDC supply.

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Saturday, March 24, 2018 11:15 PM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Yep check that I just can’t find a reason for it. At fist I thought RF was the caused.  But that turned out not the cause.  It’s only when you key the mike it shuts down and restarts.

 

Chris WB8YPO

 




On Sat, Mar 24, 2018 at 8:03 PM -0700, "Alex Netherton" <w5alx-groups@...> wrote:

Make absolutely sure the fuses are not corroded and there is no voltage drop at the rig. When you key, check that the voltage does not drop too much, or the rig will shut down.

-- 
73 de W5ALX

HTTP:// blue ridge discovery.org

Alex Netherton

On March 24, 2018 at 10:39:31 PM, Chris (wb8ypo@frontiercom) wrote:

I have a ic 7000 that is giving me fits. What is happening. When I transmit the radio shuts down.  I have even tried it as one radio that is not separated. Any ideas out there would be helpful.  I’m just about to send it in if I can’t get a fix.  

Chris wb8ypo

 


Re: Radio goes deaf when changing frequencies

Helmut Wabnig
 

On Sat, 24 Mar 2018 20:49:59 -0500, you wrote:

First rule of weird radio behavior – Do a FULL factory reset.

Yes, and the second is, do a full disassembly
and reassemble the units.
Or at least a partial disassembly.

For example, pull the CPU unit and reseat again.
Just wiggle every plug and contact.
Don't pull the ribbon cables, just press them in a little.
They easily go broke.
Also remove and reseat the front panel after cleaning the contacts.
Don't forget to reseat the internal 5A fuse behind the front panel.


OE8UWW


Re: Ic 7000 problem

Chris
 

Jim on the fuse you are talking about the fuse on the power cable.   Right

Chris WB8YPO 




On Sat, Mar 24, 2018 at 8:43 PM -0700, "James F. Boehner, MD via Groups.Io" <jboehner01@...> wrote:

Chris,

 

This is redundant to the last post, but the IC-7000’s had a major problem with the supplied fuse connectors and fuses. Even if not visibly corroded, this resulted in a major voltage drop, and caused the radio to behave like you describe. The 7000’s are very finicky on voltage.   Before you send it off for repair, it would serve you well to remove the fuse holders from the circuit entirely.  I have done so, and I connect the radio with power poles to a power pole strip that is fused.

 

I don’t remember the current requirement for the radio on transmit, but have at least a 20 Amp 12 VDC supply.

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Saturday, March 24, 2018 11:15 PM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Yep check that I just can’t find a reason for it. At fist I thought RF was the caused.  But that turned out not the cause.  It’s only when you key the mike it shuts down and restarts.

 

Chris WB8YPO

 



On Sat, Mar 24, 2018 at 8:03 PM -0700, "Alex Netherton" <w5alx-groups@...> wrote:

Make absolutely sure the fuses are not corroded and there is no voltage drop at the rig. When you key, check that the voltage does not drop too much, or the rig will shut down.

-- 
73 de W5ALX

HTTP:// blue ridge discovery.org

Alex Netherton

On March 24, 2018 at 10:39:31 PM, Chris (wb8ypo@frontiercom) wrote:

I have a ic 7000 that is giving me fits. What is happening. When I transmit the radio shuts down.  I have even tried it as one radio that is not separated. Any ideas out there would be helpful.  I’m just about to send it in if I can’t get a fix.  

Chris wb8ypo

 


Re: Ic 7000 problem

Chris
 

Checked and it stayed at 13.5 volts




On Sat, Mar 24, 2018 at 8:32 PM -0700, "N3EA" <amaslin@...> wrote:

Chris..have you checked your power supply voltage? What are you using for a power supply? Also, what is the SWR when transmit? Try transmitting into a dummy load and see what happens. Does the shut down happen at all power levels and on all bands?

Just some things to look into before you send it back.

Al, N3EA


Ic 7000 problem

James F. Boehner, MD
 

Chris,

 

This is redundant to the last post, but the IC-7000’s had a major problem with the supplied fuse connectors and fuses. Even if not visibly corroded, this resulted in a major voltage drop, and caused the radio to behave like you describe. The 7000’s are very finicky on voltage.   Before you send it off for repair, it would serve you well to remove the fuse holders from the circuit entirely.  I have done so, and I connect the radio with power poles to a power pole strip that is fused.

 

I don’t remember the current requirement for the radio on transmit, but have at least a 20 Amp 12 VDC supply.

 

’73 de JIM N2ZZ

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Chris
Sent: Saturday, March 24, 2018 11:15 PM
To: ic7000@groups.io
Subject: Re: [ic7000] Ic 7000 problem

 

Yep check that I just can’t find a reason for it. At fist I thought RF was the caused.  But that turned out not the cause.  It’s only when you key the mike it shuts down and restarts.

 

Chris WB8YPO

 



On Sat, Mar 24, 2018 at 8:03 PM -0700, "Alex Netherton" <w5alx-groups@...> wrote:

Make absolutely sure the fuses are not corroded and there is no voltage drop at the rig. When you key, check that the voltage does not drop too much, or the rig will shut down.

-- 
73 de W5ALX

HTTP:// blue ridge discovery.org

Alex Netherton

On March 24, 2018 at 10:39:31 PM, Chris (wb8ypo@frontiercom) wrote:

I have a ic 7000 that is giving me fits. What is happening. When I transmit the radio shuts down.  I have even tried it as one radio that is not separated. Any ideas out there would be helpful.  I’m just about to send it in if I can’t get a fix.  

Chris wb8ypo

 


Re: Ic 7000 problem

N3EA
 

Chris..have you checked your power supply voltage? What are you using for a power supply? Also, what is the SWR when transmit? Try transmitting into a dummy load and see what happens. Does the shut down happen at all power levels and on all bands?

Just some things to look into before you send it back.

Al, N3EA


Re: Ic 7000 problem

Chris
 

Yep check that I just can’t find a reason for it. At fist I thought RF was the caused.  But that turned out not the cause.  It’s only when you key the mike it shuts down and restarts.

Chris WB8YPO




On Sat, Mar 24, 2018 at 8:03 PM -0700, "Alex Netherton" <w5alx-groups@...> wrote:

Make absolutely sure the fuses are not corroded and there is no voltage drop at the rig. When you key, check that the voltage does not drop too much, or the rig will shut down.

-- 
73 de W5ALX
HTTP:// blue ridge discovery.org
Alex Netherton

On March 24, 2018 at 10:39:31 PM, Chris (wb8ypo@...) wrote:

I have a ic 7000 that is giving me fits. What is happening. When I transmit the radio shuts down.  I have even tried it as one radio that is not separated. Any ideas out there would be helpful.  I’m just about to send it in if I can’t get a fix.  
Chris wb8ypo

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