Date   

Tune button

MARCO EVANGELISTA
 

Hello,
my 7000 is connected to the radio port of a MFJ-993B tuner.
Unfortunately, the tune button on the 7000 does not trigger the low power keying of the transmitter. The TUNE message on the display lights up for a moment but then goes out immediatly afterwards.
Note that the 993B tunes up well when I manually set low power and RTTY mode and push the PTT.
I need your help!
Thank you.
Marco IU8HXM


Re: My IC7000 no workin at 50 mhz and uhf

Steve W3AHL
 

I don't see any obvious signals or IC that might cause the problem.  If it were my radio I would remove the Logic board from its shielded enclosure and inspect the solder joints.  I have seen two older units from early 2006 that eventually failed intermittently (in 2015 I think).  When I inspected under a stereo inspection microscope (10-20X) with a ring light, using a micro-pick to apply pressure to each lead, I found about 40 joints that were pasty and would move under light pressure.  I could plug the Logic board into the Main, turn on the radio and get it to fail by slightly flexing the PCBA.

To repair, I had to clean the old flux off the joints first, apply new flux, then reflow each problem lead with a fine-tipped iron and just a little solder.   Normal hot air reflow wouldn't work.  After the rework the intermittent Logic board problem was fixed, although there were other problems in the UHF mixer circuit.  I didn't find any problems with the BGA IC's. 

Let us know what you finally find the problem to be and how you fixed it (hopefully).

Steve, W3AHL 


Re: CI-V Problem

Kevin Grantham
 

Are you using a UBS-to-serial adapter? If so, make sure that the COM port number hasn’t changed. If it has, change HRD or the assigned port so that they match.

 

Windows may have updated the driver behind your back. You may be using a USB-to-serial adapter for your computer, and it may be using a Prolific chip clone. If that is the case then when Windows updates the driver it can replace it with one that detects the clone chips. It fails as you have described – everything looks good, it gets a COM port, etc. etc. It just won’t pass data.

 

See if you can “Update Driver” in Device Manager and roll it back to an older one. They are available on Melchior’s web site, and Wouxun.com, and other places.

 

 

Kevin N5KRG

 


Re: CI-V Problem

Paul Hansen
 

Dave,

                It looks like you damaged the CI-V port somehow. I always recommend avoiding hot switching the port by making all connections while the radio is turned off. I even like the computer interface device to be powered off too. If you have a scope, you can make sure the radio’s CI-V transceiver setting is turned on and you can see the data on the CI-V. I tested a working 7000 on the bench this morning. The CI-V port idles around 3.2 volts. But when you spin the tuning dial, the observed DC voltage drops a little, down to about 2.6 volts as data is sent. This is very much dependent on you volt meter and how fast it can change its displayed voltage. Regardless, apparent DC should change when the radio shifts from idle to actively transmitting CI-V data.

                Another thing you can do if you have another Icom HF radio is connect the two CI-V ports together. Make sure both radios are at the same baud rate and CI-V transceiver is on. Everything you do on one radio should be followed by the other radio. It should work both ways.

                I hope this helps but I suspect your port has been damaged. The actual components are inside the logic unit and they are pretty tiny.

 

Thank you,

 

Paul W. Hansen, W6XA

Amateur Radio Service

2134 Carthage Road

Tucker, GA 30084

(864) 222-3539 office

www.amateurradioservice.com

 

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Dave Sheppard
Sent: August 30, 2018 00:45
To: ic7000@groups.io
Subject: [ic7000] CI-V Problem

 

Group,

I’ve recently lost the ability to communicate between my 7000 and HRD using the RTS-01 cable. I checked the voltage on the CI-V and have about 2.5v. An Icom rep tells me that is where it’s supposed to be. I don’t appear to have any issues with the cable – no error messages in the device manager – and the radio settings match the settings in HRD. I had to have the CI-V circuit repaired about a year and a half ago on the 7000, but at that time, I had no voltage on the jack so it was obvious. What could I be missing?

 

73

Dave

W2PAX

Naples, FL

 


CI-V Problem

Dave Sheppard W2PAX
 

Group,

I’ve recently lost the ability to communicate between my 7000 and HRD using the RTS-01 cable. I checked the voltage on the CI-V and have about 2.5v. An Icom rep tells me that is where it’s supposed to be. I don’t appear to have any issues with the cable – no error messages in the device manager – and the radio settings match the settings in HRD. I had to have the CI-V circuit repaired about a year and a half ago on the 7000, but at that time, I had no voltage on the jack so it was obvious. What could I be missing?

 

73

Dave

W2PAX

Naples, FL

 


Re: My IC7000 no workin at 50 mhz and uhf

John Rupprecht K3NOQ
 

I have similar problems, i found my 6mtr-vhf-uhf antennas are too close to my radio desk and rf trips the 12 volt supply. Antennas about 10 ft away on roof of shack. Try with reduced power or dummy load and see what happens. Ciao! // John K3NOQ


Re: My IC7000 no workin at 50 mhz and uhf

Helmut Wabnig
 

On Tue, 28 Aug 2018 14:09:41 +0300, you wrote:

I send you a bottle of Italian wine !!
For a bottle of wine I give the following advice:

Open the unit and remove and reseat the CPU box.
This flat tin can on top, fastened with 2 screws only.

If the error remains do the obvious,
wiggle and reseat all connectors and cables.
Careful when moving the flat cables, they easily go broke.

OE8UWW


Re: My IC7000 no workin at 50 mhz and uhf

pub1969@...
 


Hello Steve thank you for answering me,
I answer with the same sequence of your questions:

the details visible when it stops working are black screen and a continuous whistle and everything is blocked nothing works, to restore the functioning I have to physically remove the power to 13.8 volts .

If I switch to a memory channel programmed in the 6-meter band, it makes the same fault.

It is not a problem related to heat, the defect is manifested both on hot and cold radio.

Yes uhf the problem is the same, same defect.

I do not think it's a problem with the flexible cable, the radio has never been opened, never repaired until now.

I have already tried to reset the cpu as described on page 25 of the user manual, but unfortunately the problem remains.

These are my answers. What do you think if I replace the cpu? I am a process technologist and I work in an electronic board assembly company, I have all the technology available for electronic board interventions also bga step 0.4 mm qfn qfp, all electronic components in general. I also have the possibility of doing x-ray, so it does not scare me to replace the components in my radio. The CPU has the firmware inside? Is it possible to read it before replacing the cpu? Is the firmware protected by reading? Thanks again for your patience, I send you a bottle of Italian wine !!

Ciao, Stefano
--
Inviato da Libero Mail per Android

Lunedì, 27 Agosto 2018, 04:32PM +02:00 da Steve W3AHL w3ahl@...:

What are the visible symptom details when it "stops working and crashes"?  Is the display panel blank?  If you switch to a programmed memory channel in the 6M band instead of using the UP band button does it still fail?  Does it always do this or only after being used for a while (heat  related?).

In UHF does it have the same problem as when going to 50 MHz?  Your sentence says "same problem" but then also "nothing dead everything works".  I assume you meant "everything dead, nothing works" maybe?

It sounds like a Logic board problem or flex cable problem.  Has the unit been modified or serviced recently?  Have you tried doing a CPU reset (page 25 of English user manual, erases all memory channels)?

Your English is much better than my Italian!

Steve, W3AHL


Re: My IC7000 no workin at 50 mhz and uhf

Steve W3AHL
 

What are the visible symptom details when it "stops working and crashes"?  Is the display panel blank?  If you switch to a programmed memory channel in the 6M band instead of using the UP band button does it still fail?  Does it always do this or only after being used for a while (heat  related?).

In UHF does it have the same problem as when going to 50 MHz?  Your sentence says "same problem" but then also "nothing dead everything works".  I assume you meant "everything dead, nothing works" maybe?

It sounds like a Logic board problem or flex cable problem.  Has the unit been modified or serviced recently?  Have you tried doing a CPU reset (page 25 of English user manual, erases all memory channels)?

Your English is much better than my Italian!

Steve, W3AHL


My IC7000 no workin at 50 mhz and uhf

pub1969@...
 

Hi Jim, my ic7000 has problems, when I change band with the up or down button and step from the bands hf to vhf it stops working and crashes. Switching from 29.999 mhz to 30 mhz the monitor goes off and everything stops, nothing works anymore. If I turn off the power supply and turn it on again it will work in the lowest band I was operating. In vhf everything works correctly. Same problem in uhf, nothing dead everything works. Is it a software problem? I looked at the wiring diagram, it could be the up pins 51 - 52 of ic1302 failures that enable via ic2151- ic2152 and ic901 MST MCK and MDT. Or one of these failure? Maybe L7 and L9 are not enabled? Can you help me ? Sorry for my english, I'm Italian ...
Stefano


Re: PTT switch source ?

W1JCW
 

Thanks John

 

73-

W1JCW

John

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of john.g4sku@... via Groups.Io
Sent: Tuesday, July 17, 2018 12:33 PM
To: ic7000@groups.io
Subject: Re: [ic7000] PTT switch source ?

 

Hi John,

 

You can purchase the exact replacement from icom at the following URL: http://www.icomamerica.com/en/contact-parts-department.aspx

 

Just fill out the form and e-mail it to Icom, and they will get back to you.

 

Their part number is: ICOM Microphone switch IC/.HM169.007

 

I recently bought one from Icom here in the UK and it cost £3.29 plus tax.

 

That’s approx. $4.32 plus tax at today’s exchange rate.

 

There will obviously be shipping on top of that price.

 

I hope that you manage to obtain it OK?

 

73’

 

John, G4SKU.

 

Sent from Mail for Windows 10

 

From: W1JCW
Sent: 17 July 2018 14:24
To: ic7000@groups.io
Subject: [ic7000] PTT switch source ?

 

Looking to replace the PTT switch on my HM 151. 

Does someone have a source for these switches ?? 

73-
W1JCW
John

 


Re: PTT switch source ?

W1JCW
 

 

 

73-

W1JCW

John

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of Stephen Nelson via Groups.Io
Sent: Tuesday, July 17, 2018 10:42 PM
To: ic7000@groups.io
Subject: Re: [ic7000] PTT switch source ?

 

I had the same thing fail on my 7000 mic. I found the OEM part # but nobody had them in stock, or had a long lead time with large minimum order.

 

I found a similar part that has the same package and works great so far on a common auction site. The part #: DHT-1106AB, 3.85mm 4 pin, and it was $6 shipped for quantity of 20.

 

-Stephen N.

KD6VEX

 

 

 

 


Re: PTT switch source ?

Steve W3AHL
 

The switches are available in the US from mouser.com.  Search on their web site for SKQJLBA010  .  That is the exact ALPS switch that Icom ships as a replacement part.  It is a different model than the original switch was in that it is sealed and is rated for more cycles.  They currently only have 16 in stock, with 1000 on order.  Cost for quantity 1 is $1.13.  The sealed switch has a dark gray button instread of the original unsealed switch which had a red putton.

It is important when installing the switch to use minimum heat on the leads, to prevent oxidizing the contacts.  
The maximum tip temperature spec is 662 degrees F (350 C) using a 20 watt iron, applying heat for a maximum of 3 seconds to each lead.  No flux solution should be applied to the board or switch leads (just use flux core solder).  That is per ALPS specifications.

I forget if Mouser has a minimum order amount.  If so, they are a good source for Fair-Rite ferrite chokes.

Steve, W3AHL


Re: PTT switch source ?

Stephen Nelson
 

I had the same thing fail on my 7000 mic. I found the OEM part # but nobody had them in stock, or had a long lead time with large minimum order.

I found a similar part that has the same package and works great so far on a common auction site. The part #: DHT-1106AB, 3.85mm 4 pin, and it was $6 shipped for quantity of 20.

-Stephen N.
KD6VEX






Re: PTT switch source ?

john.g4sku@ymail.com
 

Hi John,

 

You can purchase the exact replacement from icom at the following URL: http://www.icomamerica.com/en/contact-parts-department.aspx

 

Just fill out the form and e-mail it to Icom, and they will get back to you.

 

Their part number is: ICOM Microphone switch IC/.HM169.007

 

I recently bought one from Icom here in the UK and it cost £3.29 plus tax.

 

That’s approx. $4.32 plus tax at today’s exchange rate.

 

There will obviously be shipping on top of that price.

 

I hope that you manage to obtain it OK?

 

73’

 

John, G4SKU.

 

Sent from Mail for Windows 10

 

From: W1JCW
Sent: 17 July 2018 14:24
To: ic7000@groups.io
Subject: [ic7000] PTT switch source ?

 

Looking to replace the PTT switch on my HM 151. 

Does someone have a source for these switches ?? 

73-
W1JCW
John

 


PTT switch source Part # and source

W1JCW
 

Digi-Key  (450-1804-ND).

 

 

73-

W1JCW

John

 

From: ic7000@groups.io [mailto:ic7000@groups.io] On Behalf Of W1JCW
Sent: Tuesday, July 17, 2018 8:24 AM
To: ic7000@groups.io
Subject: [ic7000] PTT switch source ?

 

Looking to replace the PTT switch on my HM 151. 

Does someone have a source for these switches ?? 

73-
W1JCW
John

_._,_._,_


PTT switch source ?

W1JCW
 

Looking to replace the PTT switch on my HM 151. 

Does someone have a source for these switches ?? 

73-
W1JCW
John


Re: IC-7000 Outdoors

Robie - AJ4F
 

Steven,

Yes,  I did.  However, I could not find a set  of brightness/contrast that produced a readable screen.  Just too much ambient light.

Robie

On Sun, Jul 8, 2018 at 4:17 PM Steven Linley <linleysa@...> wrote:

Did you increase the display brightness and contrast?

WA8Y, Steven


On 7/4/2018 4:53 PM, Robie wrote:
All,

Several weeks ago I took my IC-7000 to Galveston and used it to activate the Tall Ship Elissa for Museum Ships Weekend.  Our station was setup on the pier along side the ship under an awning.  Bright sun streamed in from all sides.  The display of the IC-7000 was not really visible.  I made a shade from a cardboard box, which helped but was not satisfactory.  I was able to use the logging software on my laptop to get things up and running, but the situation was not a good one.  I'm looking for any suggestions to improve the situation for future outdoor operation,

Thanks in advance,

Robie - AJ4F



Re: IC-7000 Outdoors

Steven Linley
 

The display can show Freq. larger (option in menu).



On 7/4/2018 5:39 PM, Joe Bennett via Groups.Io wrote:
I always used an external monitor (7" was best resolution). I even used a larger monitor on field days so others could see it better. Good luck.....

Joe Bennett - W6VMX




From: Robie <ruler55@...>
To: ic7000@groups.io
Sent: Wednesday, July 4, 2018 2:11 PM
Subject: [ic7000] IC-7000 Outdoors

All,

Several weeks ago I took my IC-7000 to Galveston and used it to activate the Tall Ship Elissa for Museum Ships Weekend.  Our station was setup on the pier along side the ship under an awning.  Bright sun streamed in from all sides.  The display of the IC-7000 was not really visible.  I made a shade from a cardboard box, which helped but was not satisfactory.  I was able to use the logging software on my laptop to get things up and running, but the situation was not a good one.  I'm looking for any suggestions to improve the situation for future outdoor operation,

Thanks in advance,

Robie - AJ4F





Re: IC-7000 Outdoors

Steven Linley
 

Did you increase the display brightness and contrast?

WA8Y, Steven


On 7/4/2018 4:53 PM, Robie wrote:
All,

Several weeks ago I took my IC-7000 to Galveston and used it to activate the Tall Ship Elissa for Museum Ships Weekend.  Our station was setup on the pier along side the ship under an awning.  Bright sun streamed in from all sides.  The display of the IC-7000 was not really visible.  I made a shade from a cardboard box, which helped but was not satisfactory.  I was able to use the logging software on my laptop to get things up and running, but the situation was not a good one.  I'm looking for any suggestions to improve the situation for future outdoor operation,

Thanks in advance,

Robie - AJ4F


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