The pins are fine and I also
did a continuity test, 100%.
The radio flickers when
turning it on with FC-20 connected. Sometimes the radio
doesn't even come on.
Once you disconnect the FC-20,
everything is fine.
I looked at the schematic for
both,and the radio pin 6 is tuner sense and on the tuner it's
ground with pin 3.
Thank you
Douglas VE3FFR
On 5/8/2020 6:48 AM, Nils Ostman wrote:
Is the radio or the FC-20 shutting down? Is the cable ok? The pins
are really thin and is easy to bend.
Give me more info and I will look into the problem
/Nils SM7DVO
--
73
Douglas Richards VE3FFR
ve3ffr@...
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Is the radio or the FC-20 shutting down? Is the cable ok? The pins are really thin and is easy to bend.
Give me more info and I will look into the problem
/Nils SM7DVO
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I would like to thank Nils Ostman for posting the info on the AF/RF pot on Ebay.
I was able to order one and have just finished replacing the bent one for the new one.?
I was also able to dedust the front of the radio, actually the whole radio.
The pot works perfectly.
Now, can anyone help me with FC-20 problem I have. When connected and then powering up the radio it either shuts off immediately or just doesn't come on.
Please
Again thank you for the pot info.
73
Douglas Richards VE3FFR
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Re: UHF Preamp not working
Excellent information, Nils. It's very helpful.
No, I'm not sure that Q3004 is good. I only know that the radio is completely deaf when the "RF AMP" button is pushed on 70 CM.?
Tack!
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Re: UHF Preamp not working
That transistor "IMD3 T108" is a strange fellow. You can find info by Google it. Yaesu part # is G3070053. I'm sure they have it in stock. Can also be found elseware used by Panasonic and others.
Are you sure that the FET, 2SK2685ZT Q3004, isn't the problem? That is the UHF amp. Yaesu part # G3826857. Quite common easy to find.
Rgds
Nils SM7DVO
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I have an FT-847 that I use almost exclusively for satellite work. With RS-44 now activated I'm using mode J (2m up, 70cm down) a lot and I've noticed that when I press the "RF AMP" button the transceiver goes deaf.
I've confirmed that it's not the switch as the internal preamp works fine when receiving on 2m. I've checked menu option 30 and it's set to "INT" so that's not the problem.
So, does anyone have any ideas?
If I'm reading the schematic correctly the RF AMP switch enables Q3009 for 70cm. On the diagram it's marked as IMD3(D3). Does anyone have another part number that it cross-references to?
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Re: Wanted: FT-847 (ideally in UK)
Thanks Bob, I have a very nice 847 with both optional filters and fully modified for 4M. It’s in good condition,
toggle quoted message
Show quoted text
On 22 Apr 2020, at 14:53, bobsayers2000 via groups.io <bobsayers2000@...> wrote:
?Hi, Tim,?
Just sorting the list put and transferring between machines, but you were first to reply so I'll make sure you get your list well before the others!?
"Best regards?
Bob
Need to define a location? Ask for a What3Words address!
https://what3words.com
On Wed, 22 Apr 2020 at 12:44, Tim Hague M0AFJ via groups.io <m0afj@...> wrote: What do you have to exchange Bob?, might be interested in anything KW or Vintage AM PM me On 22 Apr 2020, at 11:14, bobsayers2000 via groups.io <bobsayers2000@...> wrote:
? Looking to buy an 847 (had one when they were new) , probably only in the UK as the weight probably makes overseas deals impractical.?
Wanted primarily for SSB above 30MHz, so might consider a model with faulty HF.?
Initially, I'd like to look for an exchange deal against a large collection of ham, military and marine radio equipment, which I need to part with to create some shack and living space! List avaolable!?
Best regards,?
|
Re: Wanted: FT-847 (ideally in UK)
Hi, Tim,?
Just sorting the list put and transferring between machines, but you were first to reply so I'll make sure you get your list well before the others!?
"Best regards?
Bob
Need to define a location? Ask for a What3Words address!
https://what3words.com
On Wed, 22 Apr 2020 at 12:44, Tim Hague M0AFJ via groups.io <m0afj@...> wrote: What do you have to exchange Bob?, might be interested in anything KW or Vintage AM PM me On 22 Apr 2020, at 11:14, bobsayers2000 via groups.io <bobsayers2000@...> wrote:
? Looking to buy an 847 (had one when they were new) , probably only in the UK as the weight probably makes overseas deals impractical.?
Wanted primarily for SSB above 30MHz, so might consider a model with faulty HF.?
Initially, I'd like to look for an exchange deal against a large collection of ham, military and marine radio equipment, which I need to part with to create some shack and living space! List avaolable!?
Best regards,?
|
Re: Wanted: FT-847 (ideally in UK)
Hi Bob ? I am looking to sell mine but am not in the UK!? Let me know if you are interested. ? Joe VA3JLF ? ? Sent from for Windows 10 ? ? Looking to buy an 847 (had one when they were new) , probably only in the UK as the weight probably makes overseas deals impractical.? Wanted primarily for SSB above 30MHz, so might consider a model with faulty HF.? Initially, I'd like to look for an exchange deal against a large collection of ham, military and marine radio equipment, which I need to part with to create some shack and living space! List avaolable!?
|
Re: Wanted: FT-847 (ideally in UK)
What do you have to exchange Bob?, might be interested in anything KW or Vintage AM
toggle quoted message
Show quoted text
On 22 Apr 2020, at 11:14, bobsayers2000 via groups.io <bobsayers2000@...> wrote:
? Looking to buy an 847 (had one when they were new) , probably only in the UK as the weight probably makes overseas deals impractical.?
Wanted primarily for SSB above 30MHz, so might consider a model with faulty HF.?
Initially, I'd like to look for an exchange deal against a large collection of ham, military and marine radio equipment, which I need to part with to create some shack and living space! List avaolable!?
Best regards,?
Bob
|
Wanted: FT-847 (ideally in UK)
Looking to buy an 847 (had one when they were new) , probably only in the UK as the weight probably makes overseas deals impractical.?
Wanted primarily for SSB above 30MHz, so might consider a model with faulty HF.?
Initially, I'd like to look for an exchange deal against a large collection of ham, military and marine radio equipment, which I need to part with to create some shack and living space! List avaolable!?
Best regards,?
Bob
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Does anyone have the Yaesu and/or manufacturer’s part number for VR6501? ?This is the dual 10k pot used to control AF and RF. My shaft got bent due to the sellers horrible packing. I scoured all the different forms of the service manual and I could not find a comprehensive parts list like what is found on newer rigs. ?I saw the earlier post about Yaesu-UK, but due to shipping delays from UK, I want to try to get the part in the US.?
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Re: Best interface that worked best ?
Hi Karl,
Signalink is good.? I've been using one on both my 847 and also on my FT-2000D. They are very simple to use and fast to get up and going.
73
Russ, N4MAV
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Re: Best interface that worked best ?
MiniPro SC by G4ZLP. Cable is available for both the Packet and HF Data ports. I've used one with both an 847 and 817, works very well.
73 Ian VK6CR
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Best interface that worked best ?
Hello Group,
?? Karl here, Stuck inside here in Ohio and thought I would try out other modes.
Any input on interface to purchase ? Thought about Signalink but uses mic input ?
Any advice would help out.
Thanks in advance.
73,
Karl
KB8SKK
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Re: *WTB* Yaesu FT 847 parts needed
I have a functioning FT847 which I have since replaced with a more modern rig.? I am going to list it on ebay. ?Contact me private ?if interested. ? Joe VA3JLF ? ? Sent from for Windows 10 ?
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From: Nils OstmanSent: February 23, 2020 2:33 AM To: [email protected]Subject: Re: [YaesuFT847] *WTB* Yaesu FT 847 parts needed ? I'm restoring an old FT-847 after a visit from "Mr. Lightning". Yaesu UK seems to have a lot of parts in stock. I managed to get "impossible" parts trough them.
You need VR6502 from Panel Unit? Send them a mail.
73
Nils /SM7DVO
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Re: *WTB* Yaesu FT 847 parts needed
I'm restoring an old FT-847 after a visit from "Mr. Lightning". Yaesu UK seems to have a lot of parts in stock. I managed to get "impossible" parts trough them.
You need VR6502 from Panel Unit? Send them a mail.
73
Nils /SM7DVO
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*WTB* Yaesu FT 847 parts needed
I inherited an FT 847 from my late Brother's estate. The town building inspector shipped me some items from his estate to me in California, one of which was my brothers' FT 847.
Unfortunately he had no knowledge of proper packaging, and in transit something happened to it on it's first transfer in Springfield MA, and knobs on the front were bent/broken.
I am in need of this control:
SQL and keyer speed
I contacted Yaesu and was able to obtain the Mic/RF PWR control so I can replace the existing one, and with very careful manipulation fixed the DSP control.
Does anyone have an old non-working 847 (burned up finals) with good front controls that you'd be willing to part with as a parts radio? Yaesu tells me some of these controls are no longer available through them.
Please help.
TNX & 73
Dave / KI6JPE
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Re: My internal keyer isn't working
Hi Nils ? I currently still own my ft847 as a second and will be looking to sell it at some point.? I don’t think I can help you with your specific problem but I am monitoring the list to keep in touch. ? Welcome to the group. ? Joe VA3JLF ? ? Sent from for Windows 10 ?
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Show quoted text
From: Nils OstmanSent: January 22, 2020 1:59 PM To: [email protected]Subject: [YaesuFT847] My internal keyer isn't working ? Hi guys,
I'm restoring an old FT-847 damaged by lightning a lot of years ago and had been lying in the schack collecting dust, according to the previous owner.
After replacing the main CPU on the AF/CNTRL board the radio woke up from it's Cinderella sleep and the most things are ok now except the internal keyer.
I have also replaced the one-chip microprocessor MB8854-1244M which in fact is the keyer.
It is impossible to key the transmitter in CW-mode, nothing happens when I try.
I have run out of ideas and if someone has any suggestions please share them with me.
73
Nils SM7DVO
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Nils Ostman
