Re: Kenwood ts520s -- tap the IF
It sounds like you're about to get in way over your head.
Gary
On 5/3/2024 1:14 PM, Timothy Holmes
wrote:
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HI folks:
?
I have a kenwood ts-520s that I am interested in possibly
tapping the IF off of to hook to a SDR dongle to make a
pan-adapter -- what Im curious to know - is how hard of a
project would this be, and -- is it safe?? for me and the radio
thanks
TIM
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Kenwood ts520s -- tap the IF
HI folks:
?
I have a kenwood ts-520s that I am interested in possibly tapping the IF off of to hook to a SDR dongle to make a pan-adapter -- what Im curious to know - is how hard of a project would this be, and -- is it safe?? for me and the radio
thanks
TIM
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Re: Hello! New to the group, and already have a question
Just take note of the sheen of the finish, too, not just the color. Is it shiny, flat, matte, etc.? You will either want that type of finish in the paint you buy or you will want a clearcoat that offers the same finish. The person analyzing the color for you at the paint store might be able to help with that. FWIW, I've heard that Sherwin Williams makes pretty good paint matches for older equipment. I think it was mentioned on one of the two Heathkit lists. Donald On Wed, 10 Apr 2024 21:02:28 -0500, "Gary Cook" <gac@...> wrote: Take the radio to Lowe's or Home Depot's paint department. They can read the color of the radio's cabinet with their computer that copies paint colors. They will mix a can for you, with the matching color. ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas/g/HamRadioHelp /g/Baofeng/g/CHIRP
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Re: Hello! New to the group, and already have a question
Tnx, Gary. ?I have had that suggested to me. ?That may be the only thing one can do. ?I have hopes that maybe someone has found a stock spray paint color they considered a close match. ?Thank you so much.
73,
Francis WA4ZYN
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Re: Hello! New to the group, and already have a question
Take the radio to Lowe's or Home Depot's paint department. They
can read the color of the radio's cabinet with their computer that
copies paint colors. They will mix a can for you, with the
matching color.
Gary
On 4/10/2024 7:13 PM, Francis via
groups.io wrote:
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Hello. ?I am new to this group. ?I¡¯ve been a ham since high
school in 1969, and ¡°tinker¡± with old radios, trying to bring
them back to life. ?I am wondering if anyone has had success in
finding a stock paint color that is a ¡°close match¡± for older
Kenwoods. ?I¡¯ve used Testors Graphite Gray Metallic before on a
TS-120 and a TS-440, but it¡¯s not really close. ?Has anyone had
more success in finding a good Kenwood gray?
Tnx es 73,
Francis WA4ZYN
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Hello! New to the group, and already have a question
Hello. ?I am new to this group. ?I¡¯ve been a ham since high school in 1969, and ¡°tinker¡± with old radios, trying to bring them back to life. ?I am wondering if anyone has had success in finding a stock paint color that is a ¡°close match¡± for older Kenwoods. ?I¡¯ve used Testors Graphite Gray Metallic before on a TS-120 and a TS-440, but it¡¯s not really close. ?Has anyone had more success in finding a good Kenwood gray?
Tnx es 73,
Francis WA4ZYN
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Re: TS-870 negative DC supply for the ALC
Hi Bob, ? If I remember correctly, the problem on the original boards was one or two of the SMD transistors. I¡¯d have to go digging to be certain, though. ? I seem to remember repairing one of the boards in one of my radios at the time and then making up a board with the LT1054 chip for the other radio. ? I also replaced the volume/squelch pots in both radios as well at the time. ? It is probably about 7 or 8 years ago now as I haven¡¯t had those radios for about 6 years now as I bought a nice new TS2000X which does everything that the others did and a lot more. ? ? 73¡.Eric VK2VE. ?
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From: [email protected] <[email protected]> On Behalf Of Bob
Sent: Sunday, April 7, 2024 10:26 PM
To: [email protected]
Subject: Re: [Kenwood-Amateur-Radio] TS-870 negative DC supply for the ALC? Just a thought, check those electrolytics?near that IC. ? Thanks for the suggestion and the link Eric.? I will look into that one as well, 73.. Gord. VE5UJ On Sunday, April 7, 2024 at 12:26:23 a.m. CST, Eric van de Weyer <groups.io@...> wrote: It appears that Mouser has plenty of the LT1054 chips in stock ? ? ? Hi Gordon, ? Not sure if this helps but I had what I think is probably the same or very similar bard some years ago in TR751A and TR851A transceivers. ? This article may help . ? Good luch. ? 73¡.Eric VK2VE. ? ? Some where on my internet travels I have seen information on replacing components of that DC to DC supply.?? The replacement cobbled up for the TS-850 has been very successful for me at least and rather than trying to figure one out for the TS-870,? I thought I would ask.
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Re: TS-870 negative DC supply for the ALC
Just a thought, check those electrolytics?near that IC. Bob W4JFA
Thanks for the suggestion and the link Eric.? I will look into that one as well, 73.. Gord. VE5UJ
On Sunday, April 7, 2024 at 12:26:23 a.m. CST, Eric van de Weyer < groups.io@...> wrote:
It appears that Mouser has plenty of the LT1054 chips in stock ? ? ? Hi Gordon, ? Not sure if this helps but I had what I think is probably the same or very similar bard some years ago in TR751A and TR851A transceivers. ? This article may help . ? Good luch. ? 73¡.Eric VK2VE. ? ? Some where on my internet travels I have seen information on replacing components of that DC to DC supply.?? The replacement cobbled up for the TS-850 has been very successful for me at least and rather than trying to figure one out for the TS-870,? I thought I would ask.
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Re: TS-870 negative DC supply for the ALC
Thanks for the suggestion and the link Eric.? I will look into that one as well, 73.. Gord. VE5UJ
On Sunday, April 7, 2024 at 12:26:23 a.m. CST, Eric van de Weyer <groups.io@...> wrote:
It appears that Mouser has plenty of the LT1054 chips in stock ? ?
From: Eric van de Weyer <evdw@...>
Sent: Sunday, April 7, 2024 4:22 PM
To: '[email protected]' <[email protected]>
Subject: RE: [Kenwood-Amateur-Radio] TS-870 negative DC supply for the ALC ? Hi Gordon, ? Not sure if this helps but I had what I think is probably the same or very similar bard some years ago in TR751A and TR851A transceivers. ? This article may help . ? Good luch. ? 73¡.Eric VK2VE. ? ? Some where on my internet travels I have seen information on replacing components of that DC to DC supply.?? The replacement cobbled up for the TS-850 has been very successful for me at least and rather than trying to figure one out for the TS-870,? I thought I would ask.
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Re: TS-870 negative DC supply for the ALC
It appears that Mouser has plenty of the LT1054 chips in stock ? ?
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Show quoted text
From: Eric van de Weyer <evdw@...>
Sent: Sunday, April 7, 2024 4:22 PM
To: '[email protected]' <[email protected]>
Subject: RE: [Kenwood-Amateur-Radio] TS-870 negative DC supply for the ALC? Hi Gordon, ? Not sure if this helps but I had what I think is probably the same or very similar bard some years ago in TR751A and TR851A transceivers. ? This article may help . ? Good luch. ? 73¡.Eric VK2VE. ? ? Some where on my internet travels I have seen information on replacing components of that DC to DC supply.?? The replacement cobbled up for the TS-850 has been very successful for me at least and rather than trying to figure one out for the TS-870,? I thought I would ask.
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Re: TS-870 negative DC supply for the ALC
Hi Gordon, ? Not sure if this helps but I had what I think is probably the same or very similar bard some years ago in TR751A and TR851A transceivers. ? This article may help . ? Good luch. ? 73¡.Eric VK2VE. ?
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From: [email protected] <[email protected]> On Behalf Of Gordon via groups.io
Sent: Sunday, April 7, 2024 1:07 PM
To: [email protected]
Subject: [Kenwood-Amateur-Radio] TS-870 negative DC supply for the ALC? Some where on my internet travels I have seen information on replacing components of that DC to DC supply.?? The replacement cobbled up for the TS-850 has been very successful for me at least and rather than trying to figure one out for the TS-870,? I thought I would ask.
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TS-870 negative DC supply for the ALC
Some where on my internet travels I have seen information on replacing components of that DC to DC supply.?? The replacement cobbled up for the TS-850 has been very successful for me at least and rather than trying to figure one out for the TS-870,? I thought I would ask.
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Can't get my VS-3 Voice Synthesizer to work in my TS-2000X
Hello,
I recently purchased a TS-2000X with a known defective serial port. I replaced the failed serial port driver chip and was able to communicate with the radio and update the firmware.
A few days ago I located a VS-3 voice synthesizer module and installed it, but I couldn't get it to work. All that it did when pressing the PF key (programmed for VOICE1) was to produce a single beep. No voice whatsoever. I reset the radio, checked and rechecked the menu settings for PF assignment and voice level, but it still didn't work. I could program to PF key for other functions and the key worked as it should.
I was able to return the VS-3, presuming it was defective, and got a brand new one, but it does exactly the same thing.
The VS-3 connector looks fine, and every other function of the radio that I have tested is working. I do not have the DRU-3A voice recorder module installed (I understand that they share some of the same digital lines).
Any ideas are very much appreciated!
--
73,
Stan N6BYU
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Hi all,
I have recently bought a TS-770 that appears to have a duff PLL chip.
The chip is the SM6422A and is mounted on the X50-1530-00 PLL(A) board.
I hear that these chips are quite hard to find, and with that in mind does anyone have an old 770 they are using for parts that may contain a board they are wiling to sell ?
Failing that, does anyone know of a near equivalent (no necessarily pin-compatible) fro a different set, maybe? a Yeasu similar VHF/UHF transceiver that may be used to do the job ?
Anyone here using a TS-770 ?
David.
M1BZD
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Re: Kenwood TS-570S (Japanese version)
You can contact?JA6QXW DESIGNER of the TS570 series.? As far I know 50W models have actually 100W PA module, just need to be unlocked.??
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Re: Kenwood TS-570S (Japanese version)
Dave . . . On Mon, 25 Mar 2024 11:06:14 -0700, "David" <ns8s@...> wrote: I have acquired a pristine, working TS-570S from Japan and see it has the power limit set to 50W. Does the service menu item 18 allow this to be set at the standard, 100W limit for USA? Hopefully someone here has a way to get that radio to put out 100 watts. However, based on recent Icom radios purchased from the Japanese market at a lower price, then brought to the USA for use, those radios are hardwired so the frequencies and power limit for Japan can't be changed in firmware or hardware (by cutting diodes in a matrix). I hope that is not the case with the 590 you have, and your radio is older than the ones I've seen being discussed recently in Icom forums, so maybe it can be changed. The other thing I'll mention is that your final transistors may be only able to handle 50 watts. You might check the transistors called out in schematics for both the Japanese and the USA models to see if they use the same transistors. If all you want to do is to change the output power, and if the output transistors are the same in radios for both markets, you might be able to rework the driver and/or output stage to put out more power. It might be something as simple as changing some resistors. Donald KX8K ---------------------------------------------------- Some ham radio groups you may be interested in: /g/ICOM /g/Ham-Antennas/g/HamRadioHelp /g/Baofeng/g/CHIRP
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Kenwood TS-570S (Japanese version)
I have acquired a pristine, working TS-570S from Japan and see it has the power limit set to 50W. Does the service menu item 18 allow this to be set at the standard, 100W limit for USA?
Thanks all!
Dave NS8S
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Re: [Owner] [Kenwood-Amateur-Radio] TM-G707 problem
That I haven't seen. I'll have to check on that. The way it's mounted there could be something putting some pressure on it...
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On 3/24/2024 9:59 AM, Bob wrote: I looked at the manual. On the back there's a reset button/switch. Maybe
that's defective? Shot in the dark.
Bob W4JFA
On Sun, Mar 24, 2024, 8:14 AM Jim Barbour <wd8chl@...> wrote:
Every so often-too often-my G707 will do a full reset on power-up. It
doesn't seem to be consistent, with things like voltage not being a
factor that I've seen.
I see nothing that says these radios have a backup battery of any kind.
I don't even see one in the schematic anywhere, so it doesn't seem like
that's it.
Any body else got any ideas? It's weird. I know there is a button
sequence that will wipe it, but I'm certainly not hitting that.
Jim
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Re: [Owner] [Kenwood-Amateur-Radio] TM-G707 problem
I've been having problems with that too. I used to be able to program it years ago with an old XP laptop that I still have, but it doesn't seem to work anymore. I'm thinking something went bad there too.
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On 3/24/2024 8:45 AM, Gary Cook wrote: Have you considered saving the radio's program on your computer, and then wiping the radio? Reload the program afterwards.
Gary
On 3/23/2024 10:16 PM, Jim Barbour wrote:
Every so often-too often-my G707 will do a full reset on power-up. It doesn't seem to be consistent, with things like voltage not being a factor that I've seen.
I see nothing that says these radios have a backup battery of any kind.
I don't even see one in the schematic anywhere, so it doesn't seem like that's it.
Any body else got any ideas? It's weird. I know there is a button sequence that will wipe it, but I'm certainly not hitting that.
Jim
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Re: [Owner] [Kenwood-Amateur-Radio] TM-G707 problem
I looked at the manual. On the back there's a reset button/switch. Maybe that's defective? Shot in the dark. Bob W4JFA?
On Sun, Mar 24, 2024, 8:14 AM Jim Barbour < wd8chl@...> wrote: Every so often-too often-my G707 will do a full reset on power-up. It
doesn't seem to be consistent, with things like voltage not being a
factor that I've seen.
I see nothing that says these radios have a backup battery of any kind.
I don't even see one in the schematic anywhere, so it doesn't seem like
that's it.
Any body else got any ideas? It's weird. I know there is a button
sequence that will wipe it, but I'm certainly not hitting that.
Jim
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Francis
Bob
David