Date   

Re: Icom IC-7000 looking for a fair price on my radio Icom IC-7000 #all

Mystic Treg
 

$700 to sell fast, $800 if you want to wait.   For All of it.


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

On Mon, Sep 24, 2018 at 9:27 PM, <kc0tsc@...> wrote:
Hi i am Mike and i am a Amateur radio operator. I had to move in to a apartment building and I tried my HT yaesu ft-60 and then I was told not to do it  I know I can do it with in my rights but I have to live here I am in need of a wheelchair some times and I can't drive right now so there is no car to put it in so I am looking to sell this radio new in box can some one tell me what this radios value is I have a
Icom IC-7000
https://www.universal-radio.com/catalog/hamhf/0700.html
The Icom RMK-7000 remote kit for the IC-7000 includes
MB-62 Radio Mounting Bracket
MB-105 Control Head Mounting Bracket
OPC-1443 Extension Cable for Control Head
https://www.universal-radio.com/catalog/hamhf/14030700.html
Icom IC-7000 Mini-Manual
https://www.niftyaccessories.com/IC-7000.php
Samlex SEC-1223 switching power supply
https://www.universal-radio.com/catalog/fm_txvrs/24234185.html
Thank You
for your help
73s to all



Re: Tune button

MARCO EVANGELISTA
 

Steve,
under the "before wakeup" condition, when the cable is connected to the 993B, but disconnected from the IC-7000, Pin 1 is at 0V.

Marco IU8HXM


Icom IC-7000 looking for a fair price on my radio Icom IC-7000 #all

Mike B
 

Hi i am Mike and i am a Amateur radio operator. I had to move in to a apartment building and I tried my HT yaesu ft-60 and then I was told not to do it  I know I can do it with in my rights but I have to live here I am in need of a wheelchair some times and I can't drive right now so there is no car to put it in so I am looking to sell this radio new in box can some one tell me what this radios value is I have a
Icom IC-7000
https://www.universal-radio.com/catalog/hamhf/0700.html
The Icom RMK-7000 remote kit for the IC-7000 includes
MB-62 Radio Mounting Bracket
MB-105 Control Head Mounting Bracket
OPC-1443 Extension Cable for Control Head
https://www.universal-radio.com/catalog/hamhf/14030700.html
Icom IC-7000 Mini-Manual
https://www.niftyaccessories.com/IC-7000.php
Samlex SEC-1223 switching power supply
https://www.universal-radio.com/catalog/fm_txvrs/24234185.html
Thank You
for your help
73s to all


looking for a fair price on my radio Icom IC-7000 #all

Mike B
 

Hi i am Mike and i am a Amateur radio operator. I had to move in to a apartment building and I tried my HT yaesu ft-60 and then I was told not to do it agen I know I can do it with in my rights but I have to live here I am in need of a wheelchair some times and I can't drive right now so there is no car to put it in so I am looking to sell this radio new in box can some one tell me what this radios value is I have a

Icom IC-7000
https://www.universal-radio.com/catalog/hamhf/0700.html

The Icom RMK-7000 remote kit for the IC-7000 includes
MB-62 Radio Mounting Bracket
MB-105 Control Head Mounting Bracket
OPC-1443 Extension Cable for Control Head
https://www.universal-radio.com/catalog/hamhf/14030700.html

Icom IC-7000 Mini-Manual
https://www.niftyaccessories.com/IC-7000.php

Samlex SEC-1223 switching power supply
https://www.universal-radio.com/catalog/fm_txvrs/24234185.html

Thank You
for your help
73s to all


Re: Tune button

Steve W3AHL
 

Marco,

To determine if the tuner is pulling pin 1 low in condition B, disconnect the tuner interface cable at the radio's tuner port and measure Tuner port pin 1 to ground.  It should be 3 VDC.  If so, then the 993B tuner is pulling that line low when it shouldn't.

Stevek W3AHL


Re: Tune button

MARCO EVANGELISTA
 
Edited

Hi Steve,
I have done a few voltage measurements on pin 1 and pin 2 (negative on chassis) under various conditions:

A) 993B on and 7000 off, before waking up
Pin 1: 0,03 V,  Pin 2: 1,43 V

B) 993B on and 7000 on, before waking up
Pin 1: 0,02 V,  Pin 2: 4,52 V

C) 993B on and 7000 on during "tune" button keypress, before waking up (tune button does not work)
No change with respect to condition B)

D) 993B on and 7000 on, after manual tuning cycle (tuning OK, but tune button is not yet working)
Pin 1: 3,03 V,  Pin 2: 4,52 V

E) 993B on and 7000 off, after manual tuning cycle
Pin 1: 0,03 V,  Pin 2: 1,46 V , i.e. almost same as condition A)

F) 993B on and 7000 on, after waking up
Pin 1: 3,01 V,  Pin 2: 4,63 V,  almost same as D)

F) 993B on and 7000 on, during "tune" button keypress, after waking up (tune button works as expected)
Pin 1: 0 V,  Pin 2: 3,04 V

What changes before and after wakup is that before Pin 1 is at 0V, whilst after it is at 3V and it goes to 0V during tune button keypress.

Turning the 7000 only off and then on leaves the system in the "after wakeup" condition (tune button works).
Turning both the 7000 and 993B off, then 993B on and then 7000 on leaves the system in the "before wakeup condition" (tune button does not work).

Is the fault caused by the 993B or by the 7000 or by both?

Thank you.
73
Marco, IU8HXM





Re: Tune button

Steve W3AHL
 

You might check the voltage on Tuner port pin 2 to ground (pin 4 or chassis) after you first power up the tuner and radio and then after "waking up" the tuner and power cycling the radio to verify that is the problem.

Steve, W3AHL


Re: Tune button

MARCO EVANGELISTA
 
Edited

Hi Steve,
thank you very much. I'll do as you say.
73
Marco, IU8HXM


Re: Tune button

Steve W3AHL
 

Marco,  The 7K requires a voltage on pin 2 (Start) of the Tuner port when it is powered up to recognize that there is an AH-4 compatible tuner connected.  In the 993B tuner, the voltage that goes to that pin comes from a PIC CPU port called WAKEUP.  It sounds like the WAKEUP signal (which is used as a pullup voltage to several circuits) is not driven high by the tuner until you go through the sequence you mentioned that works.  When you power cycle the 7K the second time, it then sees pin 2 as "high" and works normally.  Anything you do to wake up the tuner before powering up the 7K should make it work.

The 993B does NOT have the problem others have mentioned about supplying too high of a voltage on pin 1 (Key) of the Tuner port, which caused the temperature display and fan speed to be incorrect.  Pin 1 is only connected to an open collector transistor with no pullup resistor in the tuner (only using the one in the 7K, as it should).

Siince MFJ's user manual specifically states the IC-7000 is supported I suggest you email their support team and describe the problem you are having.

Steve, W3AHL


Re: Tune button

Kevin Grantham
 

I am guessing here. Icom changed the PTT circuit at some point. The signal from the tuner to the radio needs to be a ground. In the past, it was a +12V.

 

If you are using an older design tuner, it may place a 12V on the tune command lead. This has two effects – it may or may not cause the radio to start a tuning cycle, and the radio will report an over-temperature condition. This is because the radio has +8Vdc pull-up on that line that is also part of the thermocouple and by inserting 12Vdc the radio thinks it is running hot.

 

Icom tuners, and the IT-100 from LDG, correctly place a ground on that lead. Others may not. If your MFJ has an option to place a low/ground instead of a high/12Vdc on the control lead from the tuner to the radio, the whole setup may work better.

 

73,

 

Kevin N5KRG

 


Re: Tune button

MARCO EVANGELISTA
 
Edited

Hello,
I have noticed that under particular circumstances, the tune button works as expected.
After many trials, I have discovered the following sequence to have that button working:
- Power up the 993B
- power up the 7000. At this stage the Tune button does not work. When pushed, the red TUNE lamp on the display lights up and immediately afterwards it lights down. The transmitter is not keyed.

1) Make a tuning cycle by setting low power in rtty mode and pushing the PTT
2) Power down the IC-7000
3) Power up the IC-7000. Now the Tune button works!

I really wonder what the problem is, and if the issue concerns the 7000 or the 993B.
Any help will be much appreciated.

73
Marco IU8HXM


Re: Tune button

Norm Stewart
 

Assuming you have the 993 interface cable in the 7k 4 pin tuner port,  there does seem to be a problem with some radios - my 993 tuner worked fine with a 706, but the same cable did not work with the 706MKIIg or the 7000.  I assume that the start line is not being pulled low enough by the radio to trigger the tuning. I put an external push button to momentarily ground  the start line, and all works as expected with both of the newer radios. 

Norm

w6nim


On 9/13/2018 2:22 AM, MARCO EVANGELISTA wrote:
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

-- 
Sent from my antique Win7 desktop

Virus-free. www.avg.com


Re: Tune button

James Johnston <jimthej@...>
 

I have the same setup. When tuning stops, it is usually caused by the #1 wire breaking at the molex connector. If you have a tool for removing molex pins, you can solder in a jumper 
Since mine is a travel rig, I pack a spare cable. 

Jim Johnston 

On Sep 13, 2018, at 13:48, MARCO EVANGELISTA <marcoevang@...> wrote:

[Edited Message Follows]

Hi Paul,
thank you for your answer.
My 7000 is connected to the radio interface of the 993B using an original MFJ-5123I cable.
Please also note that when I push the tune button on the 7000, the "Reverse" needle of the SWR meter of 993B has a pronounced forward dip and the 993B emits a tone. Immediately afterwards, the needle goes back to the initial position. No power from the IC-7000.
The needle also dips when I change band.


Best regards,
Marco IU8HXM


Re: Tune button

MARCO EVANGELISTA
 
Edited

Hi Paul,
thank you for your answer.
My 7000 is connected to the radio interface of the 993B using an original MFJ-5123I cable.
Please also note that when I push the tune button on the 7000, the "Reverse" needle of the SWR meter of 993B has a pronounced forward dip and the 993B emits a tone. Immediately afterwards, the needle goes back to the initial position. No power from the IC-7000.
The needle also dips when I change band.


Best regards,
Marco IU8HXM


Re: Tune button

Paul Hansen
 

The 933B by itself is only going to sense RF. You won’t have control of it without the MFJ-5123I interface cable. What you are seeing is normal without the interface cable.

 

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 MARCO EVANGELISTA
Sent: September 13, 2018 09:22
To: ic7000@groups.io
Subject: [ic7000] Tune button

 

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


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

 

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