Hi Ed If I understand your question correctly. You want to be able to turn off the internal speaker and use a headset (as in headphones). Well there is a headphone jack on the side of the head ( RHS), when you plug in there the speaker is disabled.? However if you want to use the microphone as well on a headset, then you would need to? 1. Make sure microphone is compatible with the 7000 2. You would need an interface cable between mic jack and headset. I have not attempted 2 as yet, but I use the headphone jack to interface to my computer for running a program called Spectran, and it definitely switches of speaker. Cheers?
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On 5 Dec 2024, at 6:22?AM, Edward Luers via groups.io <eluers2@...> wrote:
? I have an IC7000 and would like to have a switch from the internal speaker and a headset. Suggestions?
Ed KE6SU
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You may also look at CT17B CI-V Hubs can connect via Bluetooth or usb, and 5 CIV radios or OEM CI-V Devices, all ports, DC and Grouns are rfi filtered, signals are processed and automatically leveled to maximum, etc... all the info are on www.ve2dx.com?
--
73
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Richard VE2DX,?Jesus Island, PQ-014
VE2DX ELECTRONIC? Only the Best ICOM, ERC and HRD? /g/CIVFollow my projects on?
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I have an IC7000 and would like to have a switch from the internal speaker and a headset. Suggestions?
Ed KE6SU
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Thanks for the info.? I'll order one.
73,
ED KE6SU
On Tue, Dec 3, 2024 at 8:11?AM Will M KA3UQQ via <moondogster= [email protected]> wrote: Get this from Amazon.
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There are cheaper ones but they have the Prolofic chipset which tend to have driver issues unlike the FTDI chipset.??
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This is for CAT control.? If you didn't get a Signalink cable, you need one with a mini DIN 6 pin connector. Part # SLCAB6PM
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Will
KA3UQQ
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Get this from Amazon.
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There are cheaper ones but they have the Prolofic chipset which tend to have driver issues unlike the FTDI chipset.??
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This is for CAT control.? If you didn't get a Signalink cable, you need one with a mini DIN 6 pin connector. Part # SLCAB6PM
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Will
KA3UQQ
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Re: Locking Memory Frequencies
Thanks Neil, I've owned my 7000 since 2007 and just found out from your post that there is a mechanical lock on the right side of the tuning knob. I just tried it for the first time!??
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73, Larry W7DGP
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I'm using a IC7000, a Lenovo Yoga computer and a Signalink. ?Hope to one day get to try digital comm. What interface cable should I get?
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Re: Locking Memory Frequencies
Hi There is also the mechanical lock on right side of head by big knob. 73
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On 2 Dec 2024, at 2:49?PM, VA6GT via groups.io <va6gct@...> wrote:
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Re: Locking Memory Frequencies
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Re: Locking Memory Frequencies
Manual Page 37 I think....? The Speech/Lock Button....long press it.
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Grant? VA6GT
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Locking Memory Frequencies
Hello all:
?
?? I just purchased a 7000 with the primary usage being mobile 2 and 432 SSB/FM in various vehicles.? All of the memories are tunable.? Is there any way to lock them so the frequency can't be changed by an inadvertent knock on the tuning dial?? If it's in the manual I missed it.? Thanks/
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Chris W3CMP
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Re: Intermittent Loss of Pre-Driver signal
Hi Steve All good. Enjoy 73
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On 1 Dec 2024, at 9:52?AM, Steve G4ALG <steve@...> wrote:
? Hi Neil
?
I now need to focus on some other things here for a week or two.? ?But I am satisfied that the fan modification is keeping things cooler than before.? ?And it's important to note that the fan is positioned close the two pre-driver FETs!? ?I'm reasonably sure the the increased cooling will keep this rig going for several years - and will probably outlast the rig's current owner!
?
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With best wishes
Steve G4ALG
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Re: Intermittent Loss of Pre-Driver signal
Hi Neil
?
I now need to focus on some other things here for a week or two.? ?But I am satisfied that the fan modification is keeping things cooler than before.? ?And it's important to note that the fan is positioned close the two pre-driver FETs!? ?I'm reasonably sure the the increased cooling will keep this rig going for several years - and will probably outlast the rig's current owner!
?
?
With best wishes
Steve G4ALG
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Re: Intermittent Loss of Pre-Driver signal
Hi Now that I have had time to look at the data sheets for the 2 devices. The physical size would make it difficult to fit onto the space. The replacement is designed to mount on a large heatsink, bolted through mounting hole and then stand above circuit board. The device in the IC7000 is a surface mounted device (SMD). I think heat-sinking or throttling back drive a little or both is best.
Steve, Is it possible to do a finger temperature test on those two devices, after transmitting for a while into a dummy load. Firstly to compare how hot each one gets, and secondly to see how hot it’s running. If it is getting really hot after a short test, then most likely the device may fail again.
Hope this helps 73
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On 30 Nov 2024, at 1:58?PM, Bob via groups.io <W4JFABob@...> wrote:
? Hi all, Now I'm not sure if this would work. Maybe someone with more knowledge?about FET's can comment. Attached is the data sheet of the factory FET Also attached is what I found that may be a possible replacement that is more robust. Since this is an RF component, I'm not sure. Judging by the physical size of that resistor in the picture, this TO-247 case FET should? physically fit.
Any comments?
Factory? RD01MUS1 Possible replacement? ?IRFP260NPbF
Bob W4JFA Update: New FET received & old FET removed
?
The new FET arrived today, ahead of the de-solder wick.? Upon inspection, I was pleased to see that the FET 'tab' and 'source' connections are made from a single piece of metal, which is clearly visible from the underside of the device. This knowledge helped me in two ways.? Firstly, the source terminal on my IC-7000 had to be soldered to ground via the tab terminal, if not via the pad under the source terminal.? ?Secondly, I now had confidence that heating the source terminal with the soldering iron would probably release the tab terminal also.?? So, armed with my 50 year-old Weller TCP soldering iron, I first heated the tab, and then quickly moved to heating the gate, source, and drain terminals, thereby releasing the FET from the board.? Actually, it didn't happen quite this cleanly because the device fell apart during de-soldering.? I was half expecting this to happen. I then cleaned each pad of solder, a whisker at a time, by repeated application of a 'dry' soldering iron tip.?? Here is the result: <Img_5065_sm.jpg> ?
Note that the PTHs each side of the 56 ohm resistor look much nicer from this camera angle? :-) I have since checked the FET PCB pads for continuity, and all look to be solid, with no solder bridges caused by my ham-fisted work with less than ideal tools.? Note that I still haven't removed the Main board from the rig. And here is a photo of what's left of the dead FET: <dead_fet.jpg> I'm now planning the next part of the repair.? There does at least seem to be a good chance of installing the new FET without removing the Main board.? All would be suggestions greatly appreciated.? ?
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<RD01MUS1.pdf> <irfp260npbf.pdf>
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I'm interested in this as well. Bob W4JFA
Wow!? Pentti -- Your news is both surprising and exciting.? ?I look forward to hearing more news from you.? 73, Steve.
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Wow!? Pentti -- Your news is both surprising and exciting.? ?I look forward to hearing more news from you.? 73, Steve.
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Hi Steve.
The problem is that the coil is so small and really broken and its wires are partially cut, so you can't see the turns and how they are on top of each other. However, I was happy to find a company called Radioparts in your country and I think I can still get them brand new from them.
I'll let you know how it goes. 73 Pentti
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Re: Intermittent Loss of Pre-Driver signal
Hi all, Now I'm not sure if this would work. Maybe someone with more knowledge?about FET's can comment. Attached is the data sheet of the factory FET Also attached is what I found that may be a possible replacement that is more robust. Since this is an RF component, I'm not sure. Judging by the physical size of that resistor in the picture, this TO-247 case FET should? physically fit.
Any comments?
Factory? RD01MUS1 Possible replacement? ?IRFP260NPbF
Bob W4JFA
Update: New FET received & old FET removed
?
The new FET arrived today, ahead of the de-solder wick.? Upon inspection, I was pleased to see that the FET 'tab' and 'source' connections are made from a single piece of metal, which is clearly visible from the underside of the device. This knowledge helped me in two ways.? Firstly, the source terminal on my IC-7000 had to be soldered to ground via the tab terminal, if not via the pad under the source terminal.? ?Secondly, I now had confidence that heating the source terminal with the soldering iron would probably release the tab terminal also.?? So, armed with my 50 year-old Weller TCP soldering iron, I first heated the tab, and then quickly moved to heating the gate, source, and drain terminals, thereby releasing the FET from the board.? Actually, it didn't happen quite this cleanly because the device fell apart during de-soldering.? I was half expecting this to happen. I then cleaned each pad of solder, a whisker at a time, by repeated application of a 'dry' soldering iron tip.?? Here is the result:  ?
Note that the PTHs each side of the 56 ohm resistor look much nicer from this camera angle? :-) I have since checked the FET PCB pads for continuity, and all look to be solid, with no solder bridges caused by my ham-fisted work with less than ideal tools.? Note that I still haven't removed the Main board from the rig. And here is a photo of what's left of the dead FET:  I'm now planning the next part of the repair.? There does at least seem to be a good chance of installing the new FET without removing the Main board.? All would be suggestions greatly appreciated.? ?
?
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Re: Intermittent Loss of Pre-Driver signal
Hi Neil
I'm very pleased with the initial results having done the parallel resistor part of the fan modification by Richard PA7FA.? ? The fan comes on a lot more now, but will stop reliably once the internal temperature drops.? ?
When doing the mod, Richard is quite right that the plated through hole surfaces need to be cleaned to expose the copper in order to solder to them.? It's a tricky process.? Great care is required.? I happened to have some conventional 33 k resistors with unusually thin leads.? This enabled me to poke the leads through the PTHs from the other side of the board, thereby providing some support for the resistor, and reduce the force on the PTH 'pads'.? ?I sleeved the resistor leads using insulation removed from some thin 7/0.2 hook-up wire.??
It's unlikely that the PTH pads are strong enough to support a leaded resistor 'surface mount' style.? Personally, I would not attempt to even solder a SMD resistor to the PTHs either, because of the small surface area of each PTH pad.? ?
I did wonder about putting heatsink compound under the FET.? But, to be honest, I already had enough to deal with to solder the darn thing in place? :-)? ?The last thing I wanted was to contaminate my soldered joint with foreign stuff!? ?
I'm not entirely convinced that the drive level would affect Q102 much.? ?According to the , once the rig is on 'TX', the Q102 FET (with about 3 volts on its Gate) appears to be biased in Class A.? If this is the case, the drive level probably won't affect the operating conditions of the device significantly.
It's nice to have the rig working again.? It's still very new to me, so I'm still learning my way around the menus, features and functions.? Another incredible box of magic from Icom.? The TX fault was a bit of a distraction.?
The only other modification I've done is the super-brilliant mod by SM6VFZ to significantly improve frequency stability of the TCXO.? ?But this is probably only of use to CW/SSB operators who use 2m and 70cm.? ?See:
I implemented the modification differently, but the improvement was truly amazing for such a simple idea.
72/73
Steve G4ALG
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Re: Intermittent Loss of Pre-Driver signal
? Hi Steve Re Fan Mod. Yes I agree, I do have a little noise with it running all the time, mine runs from early morning to mid evening most days( since retirement 8 months ago) and it used to get really hot. I had lived with it as before retirement use was limited during week and a bit of weekend use. It now runs very cool all the time.
Re device change, I only just thought of it, a little heatsink compound under the device before soldering tag, may had been a good idea. I think the manufacturer would consider the device to be flat hard mounted in that package. Someone mentioned about adjusting drive level, this may be a something to consider as well. Hope you get some operating time now you have it sorted. 73
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On 30 Nov 2024, at 5:51?AM, Steve G4ALG <steve@...> wrote:
? Thank you, Neil ZL3ADC, Dave ZS1DFR, and Bob W4JFA?
Neil:? For now, I will hold off applying a heatsink to Q102 while I consider internal fan modifications.? I didn't feel that I needed to run the fan continuously, as I use the rig a lot for monitoring the VHF and UHF CW centres of activity.? ?Today, I have implemented part of the modification written up by Richard PA7FA.? See:
I only added the 33 kohm resistor.? ?I was happy to let the temperature sensor detect the general internal temperature without pinning it to the heatsink temperature.? For this reason, I didn't go wild with the heatsink compound? :-)
Dave:? Thank you.? ?It's much easier to keep focus when we feel part of a team. It was a team effort.
?
Bob:? A1: Yes, I used the exact same .? ?A2:?I can't find a date on the rig, but the serial number is 1002893, if this helps.? ?A3: I don't know anything about the history of this rig.? It was an eBay purchase, and I may be the third owner.? But it is in good general condition.? The rig came without a mobile mount, and there are no signs that the rig or the control head was used mobile.? But it may have been.? ?A4:? Regarding the mounting of Q102.? I also considered different ways of mounting the FET.? In the end, I decided that it was better to follow the construction method as used on thousands of production models rather than go it alone with a new approach.? I'm reasonably sure that having the tab and source (ground) plate of the FET in intimate contact with the copper foil of the PCB probably helps to keep the device cooler than if the casing of the FET is simply dangling in mid-air.
72/73
Steve G4ALG
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Edward Luers
Steve G4ALG
Bob