开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. Ic7000
  2. Messages
Expanded Topics Messages Polls
Date
Re: Plastic Power Plug for IC-7000

 

There are a number of sources. It is called an HF-4 connector and eBay has listings as well as Powerwerx.
Here is a link?
.
Plastic Power Plug for IC-7000

Mike
 

Where can I buy/source the plastic plug with pins to go into 12v receptical on back of the IC-7000?? Is there a particular reference number for that plug?? I want to make my own customized power cord?

Any help appreiated?

73 de W3MIK Mike
Re: Shuts down in 40m

 

Having designed & built many mobiles, I placed ground & power fuses right at the battery, then off to the rig runners. This worked just?fine for large installs.




On Sun, Mar 10, 2024, 14:15 Steve W3AHL <w3ahl@...> wrote:
These are okay:??

Many automotive stores sell 30-amp rated ATO/ATC inline fuse holders, but most use 12 gauge leads, which I have found to often have poor quality contacts.? Littelfuse 30-amp heavy duty holders with 12 gauge leads seem okay though, but I haven't seen theirs with a protective cover for years.

I like the MAXI 30-75 amp fuse holders, but the cost of the fuse holder & fuse is 3X+ that of the ATO/ATC style.

Replacing the fuse holders with PowerPole connectors and using a RigRunner to fuse the positive lead is okay for portable operation, but mobile installations should always have the ground/negative lead fused also, which a RigRunner distribution box doesn't do.? Plus, every crimp and connector adds voltage drop under high current peaks, so I feel it's better to go as direct as possible if you want to operate with the engine off or with a standalone battery for portable use.? ? ? ?

Steve, W3AHL?

Re: Shuts down in 40m

 
Edited

These are okay:??

Many automotive stores sell 30-amp rated ATO/ATC inline fuse holders, but most use 12 gauge leads, which I have found to often have poor quality contacts.? Littelfuse 30-amp heavy duty holders with 12 gauge leads seem okay though.? Search for Littelfuse FHAS100.

I like the MAXI 30-75 amp fuse holders, but the cost of the fuse holder & fuse is 3X+ that of the ATO/ATC style.

Replacing the fuse holders with PowerPole connectors and using a RigRunner to fuse the positive lead is okay for portable operation, but mobile installations should always have the ground/negative lead fused also, which a RigRunner distribution box doesn't do.? Plus, every crimp and connector adds voltage drop under high current peaks, so I feel it's better to go as direct as possible if you want to operate with the engine off or with a standalone battery for portable use.? ? ? ?

Steve, W3AHL
Re: Shuts down in 40m

 

I cut off the OEM holders and use Power Poles, connect it to a Power Pole distribution box that has higher quality fuses.

73! Mark KA6WKE - DM34st
Website:
Youtube:
Amateur Radio:
LinkedIn:?




On Sat, Mar 9, 2024 at 3:13?PM Michael Parker <miketparker@...> wrote:
Fo you know where I can get some quality fuse holders?

Re: Shuts down in 40m

 

Fo you know where I can get some quality fuse holders?
Re: Testing the driver board with a multimeter!

 

Thank you for all your help! Well it was worth a try !
Re: Testing the driver board with a multimeter!

 

开云体育

In my opinion you do not have a salvageable radio. I see corrosion all over the place and that’s probably why it won’t transmit. I wouldn’t invest much time trying to repair this radio, sorry for the bad news.

?

Thank You

?

Paul W. Hansen, W6XA

Amateur Radio Service

2134 Carthage Road

Tucker, GA 30084

(864) 222-3539

www.amateurradioservice.com

?

From: [email protected] [mailto:[email protected]] On Behalf Of ZS2PA Andrew Prideaux
Sent: Tuesday, March 5, 2024 12:14
To: [email protected]
Subject: Re: [ic7000] Testing the driver board with a multimeter!

?

[Edited Message Follows]

I have replaced them! All the small ones i have foud this! one off the legs are off. mabye
Re: Testing the driver board with a multimeter!

 

Re: Testing the driver board with a multimeter!

 
Edited

I have replaced them! All the small ones i have foud this! one off the legs are off. mabye
Re: Testing the driver board with a multimeter!

 

开云体育

If you can set idle current correctly, the probability the FET is good is very high. What about the little pre-drivers? There are plenty of other reasons the radio won’t transmit.

?

Thank You

?

Paul W. Hansen, W6XA

Amateur Radio Service

2134 Carthage Road

Tucker, GA 30084

(864) 222-3539

www.amateurradioservice.com

?

From: [email protected] [mailto:[email protected]] On Behalf Of ZS2PA Andrew Prideaux
Sent: Tuesday, March 5, 2024 11:32
To: [email protected]
Subject: Re: [ic7000] Testing the driver board with a multimeter!

?

Thanks Paul. I can adjust the idle current ,which i have done. Also I have some extra cables. The board looks perfectly fine.

Re: Testing the driver board with a multimeter!

 

Thanks Paul. I can adjust the idle current ,which i have done. Also I have some extra cables. The board looks perfectly fine.
Re: Testing the driver board with a multimeter!

 

开云体育

Not really. The best way is to put the radio into the alignment mode and see if you can adjust the driver idle current. You should be able to set it to 1 amp. It’s adjustment range is from zero to several amps. You could also monitor the gate voltage as you adjust the idle setting. It usually runs from less than 1 volt to well over 5 volts. In my opinion, 6.82 volts is too high. It makes me think the FET is open.

?

If the board is removed about the only thing you can do is check for shorts. I spoke incorrectly before. The 1 ohm resistor raises the source slightly above ground to introduce a bit of negative feedback in an attempt to stabilize the circuit. It didn’t work but it was a nice try. There is something inherently unstable about the driver. The transistor oscillates and catches fire just sitting there receiving.

?

It’s not an easy task to remove the driver board. Be extremely careful pulling the flex cables. Incorrectly inserting them can turn the radio into a paperweight.

?

Thank You

?

Paul W. Hansen, W6XA

Amateur Radio Service

2134 Carthage Road

Tucker, GA 30084

(864) 222-3539

www.amateurradioservice.com

?

From: [email protected] [mailto:[email protected]] On Behalf Of ZS2PA Andrew Prideaux
Sent: Tuesday, March 5, 2024 09:16
To: [email protected]
Subject: [ic7000] Testing the driver board with a multimeter!

?

Can a person test the driver board once it has been desoldered ? And how?

Testing the driver board with a multimeter!

 

Can a person test the driver board once it has been desoldered ? And how?
Re: What should the voltage be ?

 

Thank you so much! This rig is driving me nuts now output (very low) until the DRIVO Q504 then nothing!
Re: What should the voltage be ?

 

开云体育

Yes. Follow the line. It goes direct to the 13.8 volt DC input. Icom radios have DC on the drains or collectors any time the radio is connected to an energized power supply.

?

Thank You

?

Paul W. Hansen, W6XA

Amateur Radio Service

2134 Carthage Road

Tucker, GA 30084

(864) 222-3539

www.amateurradioservice.com

?

From: [email protected] [mailto:[email protected]] On Behalf Of ZS2PA Andrew Prideaux
Sent: Monday, March 4, 2024 17:58
To: [email protected]
Subject: Re: [ic7000] What should the voltage be ?

?

Should there be 13.9 volt on J102?

Re: What should the voltage be ?

 

Should there be 13.9 volt on J102?
Re: What should the voltage be ?

 

开云体育

6.82 volts on the gate is pretty high. It’s controlled by the driver bias setting in the service menu. It’s normally around 4 volts and you set it by monitoring the drain current on an external ammeter. Set it to 1 amp. If you are not seeing a 1 amp drain current draw, the transistor is defective.

?

You also are showing the early version of the driver board. Later versions have a 1.0 ohm resistor in series with the gate.

?

Thank You

?

Paul W. Hansen, W6XA

Amateur Radio Service

2134 Carthage Road

Tucker, GA 30084

(864) 222-3539

www.amateurradioservice.com

?

From: [email protected] [mailto:[email protected]] On Behalf Of ZS2PA Andrew Prideaux
Sent: Monday, March 4, 2024 16:49
To: [email protected]
Subject: [ic7000] What should the voltage be ?

?

When testing i get these voltages on my amp
A )not transmitting J101 no voltage but there is a voltage of 13.9 volts on J102.
B) transmitting J101 there in a volttage of 6.82 volts and a voltage? of 13.9 volts on J102.
Is this correct?

What should the voltage be ?

 

When testing i get these voltages on my amp
A )not transmitting J101 no voltage but there is a voltage of 13.9 volts on J102.
B) transmitting J101 there in a volttage of 6.82 volts and a voltage? of 13.9 volts on J102.
Is this correct?
Re: IC-7000 Shuts Down When Keyed

Mike
 

Well folks...I fixed the issue!!!? Eight wraps of the coax thru an FT240-43 ferrite toroid at the radio did the trick!!!? I'm stoked that it worked.??

Apparently the 7000 is very sensitive to RF on the shield.? I'd put my FT857d in the exact same setup, and had no issues whatsoever.? Put the 7000 back in...shut down every time.

Thanks for all's input.? Really appreciate it.

Mike




On Tue, Feb 20, 2024 at 11:10 AM, Keith Kaiser
<wa0tjt@...> wrote:
I recently had this same issue. I checked all kinds of things but ultimately it was exactly what?John Denison?wrote. Pull the fuses out of the line, and either replace them or clean the contacts. This fixed my issue immediately and I’m almost willing to be the cost of two new fuses its your issue too.

73

Keith, WA0?TJT
Author: https://net-control.us
ARRL ARES?Communicator?Level 2, AEC for?Platte Co. MO
ARRL VE
KCHEART Radio Operator - St. Lukes Barry Road Hospital
541 - 560 of 42903