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Ft-817 bad finals update
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Gang
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A update on the status of the FT-817 Final unit
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First off a bit of Yaesu clarification?
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The board that holds the output transistors is called the Final Unit and is number FR006000. Which mounts on top of the PA board, FR005190
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According to Yaesu part lady, NO Final units are in stock. NONE are planned to be ordered.
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According to the Yaesu service guy, Yaesu WILL NOT service the original FT-817. They will service the FT-871-ND and the FT-818.
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Ah! You say! Don't they use the same final board? I asked that, too.?
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Mike wb8vge |
开云体育Wow, they actually created more questions than they answered, amazing!Ken, N2VIP On Aug 5, 2024, at 18:22, Mike Bryce <prosolar@...> wrote:
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开云体育Looks like I have a barely used brick on my hands ? From: ft817@groups.io <ft817@groups.io> On Behalf Of Ken N2VIP via groups.io
Sent: Monday, August 5, 2024 7:25 PM To: ft817@groups.io Subject: Re: [ft817] Ft-817 bad finals update ? Wow, they actually created more questions than they answered, amazing! ? Ken, N2VIP
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开云体育
Mike,
This is the order I placed today. The parts lady understood what I wanted and this is my order...
3.00 0.00 3.00 EA B CB1333004 EA 26.17 78.51 1.0 FT-817 FINAL UNIT
She did say the units had not time set for delivery.
Dean
N2TNN
From: ft817@groups.io <ft817@groups.io> on behalf of Mike Bryce <prosolar@...>
Sent: Monday, August 5, 2024 7:22 PM To: ft817@groups.io <ft817@groups.io> Subject: [ft817] Ft-817 bad finals update ?
Gang
?
A update on the status of the FT-817 Final unit
?
First off a bit of Yaesu clarification?
?
The board that holds the output transistors is called the Final Unit and is number FR006000. Which mounts on top of the PA board, FR005190
?
According to Yaesu part lady, NO Final units are in stock. NONE are planned to be ordered.
?
According to the Yaesu service guy, Yaesu WILL NOT service the original FT-817. They will service the FT-871-ND and the FT-818.
?
Ah! You say! Don't they use the same final board? I asked that, too.?
?
Mike wb8vge
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toggle quoted message
Show quoted text
On Aug 5, 2024, at 20:38, Dean, N2TNN <N2tnn@...> wrote:
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When I replaced my 3rd FT817(non-ND) like 5 years ago it was the newer one Yaesu was shipping with the FT817 when it was still in production.? So yes the newer PAs will work with any FT817, ND or not. Not sure about the FT818 for it had 6W output, but bet it is very similar or identical.? Probably to get that extra 1W just required more drive. But shame the PA board is no longer available from Yaesu, but I have found them to be that way.? Had FT8100 nice dual band 2m/440 rig that lost power output.? At the time was less than 5 years old.? Sent to Yaesu repair and they sent back stating they no longer service them.? They did not charge return shipping, I guess something.? I found the power control voltage to the PA module was bad.? I jumpered 12 volts to the pin and for last 20 years rig is putting out 50W no matter what the rig display says, hi. Most of these repair facilities only want to work on gear their techs are familiar with.? As with repair of anything the tech has seen the problem many times before so knows quickly what to do and how to do it.? Time is money. Now we need someone who can take existing FT817 or FT818 PA boards and learn how to repair them.? As you suggested replacing the FETs is probably all that is needed for most.? Just need the FET part number.
On Monday, August 5, 2024 at 09:44:29 PM EDT, Ken N2VIP <ken@...> wrote:
That part number is for the FT-818 board... Ken, N2VIP On Aug 5, 2024, at 20:38, Dean, N2TNN <N2tnn@...> wrote:
Mike,
This is the order I placed today. The parts lady understood what I wanted and this is my order...
3.00 0.00 3.00 EA B CB1333004 EA 26.17 78.51 1.0 FT-817 FINAL UNIT
She did say the units had not time set for delivery.
Dean
N2TNN
From: ft817@groups.io <ft817@groups.io> on behalf of Mike Bryce <prosolar@...>
Sent: Monday, August 5, 2024 7:22 PM To: ft817@groups.io <ft817@groups.io> Subject: [ft817] Ft-817 bad finals update ?
Gang
?
A update on the status of the FT-817 Final unit
?
First off a bit of Yaesu clarification?
?
The board that holds the output transistors is called the Final Unit and is number FR006000. Which mounts on top of the PA board, FR005190
?
According to Yaesu part lady, NO Final units are in stock. NONE are planned to be ordered.
?
According to the Yaesu service guy, Yaesu WILL NOT service the original FT-817. They will service the FT-871-ND and the FT-818.
?
Ah! You say! Don't they use the same final board? I asked that, too.?
?
Mike wb8vge
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I meant "When I replaced my 3rd FT817(non-ND) PA like 5 years ago"
On Tuesday, August 6, 2024 at 03:25:15 PM EDT, Ron Wright via groups.io <lt_wright_flg@...> wrote:
When I replaced my 3rd FT817(non-ND) like 5 years ago it was the newer one Yaesu was shipping with the FT817 when it was still in production.? So yes the newer PAs will work with any FT817, ND or not. Not sure about the FT818 for it had 6W output, but bet it is very similar or identical.? Probably to get that extra 1W just required more drive. But shame the PA board is no longer available from Yaesu, but I have found them to be that way.? Had FT8100 nice dual band 2m/440 rig that lost power output.? At the time was less than 5 years old.? Sent to Yaesu repair and they sent back stating they no longer service them.? They did not charge return shipping, I guess something.? I found the power control voltage to the PA module was bad.? I jumpered 12 volts to the pin and for last 20 years rig is putting out 50W no matter what the rig display says, hi. Most of these repair facilities only want to work on gear their techs are familiar with.? As with repair of anything the tech has seen the problem many times before so knows quickly what to do and how to do it.? Time is money. Now we need someone who can take existing FT817 or FT818 PA boards and learn how to repair them.? As you suggested replacing the FETs is probably all that is needed for most.? Just need the FET part number.
On Monday, August 5, 2024 at 09:44:29 PM EDT, Ken N2VIP <ken@...> wrote:
That part number is for the FT-818 board... Ken, N2VIP On Aug 5, 2024, at 20:38, Dean, N2TNN <N2tnn@...> wrote:
Mike,
This is the order I placed today. The parts lady understood what I wanted and this is my order...
3.00 0.00 3.00 EA B CB1333004 EA 26.17 78.51 1.0 FT-817 FINAL UNIT
She did say the units had not time set for delivery.
Dean
N2TNN
From: ft817@groups.io <ft817@groups.io> on behalf of Mike Bryce <prosolar@...>
Sent: Monday, August 5, 2024 7:22 PM To: ft817@groups.io <ft817@groups.io> Subject: [ft817] Ft-817 bad finals update ?
Gang
?
A update on the status of the FT-817 Final unit
?
First off a bit of Yaesu clarification?
?
The board that holds the output transistors is called the Final Unit and is number FR006000. Which mounts on top of the PA board, FR005190
?
According to Yaesu part lady, NO Final units are in stock. NONE are planned to be ordered.
?
According to the Yaesu service guy, Yaesu WILL NOT service the original FT-817. They will service the FT-871-ND and the FT-818.
?
Ah! You say! Don't they use the same final board? I asked that, too.?
?
Mike wb8vge
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开云体育I am certainly willing to send my FT817 (older) to someone to repair.? I would rather do that than relegate it to an electronic rrecycling – as that is all it is worth without the finals ? Scott aka KB0FHP ? From: ft817@groups.io <ft817@groups.io> On Behalf Of Ron Wright via groups.io
Sent: Tuesday, August 6, 2024 3:25 PM To: ft817@groups.io Subject: Re: [ft817] Ft-817 bad finals update ? When I replaced my 3rd FT817(non-ND) like 5 years ago it was the newer one Yaesu was shipping with the FT817 when it was still in production.? So yes the newer PAs will work with any FT817, ND or not. ? Not sure about the FT818 for it had 6W output, but bet it is very similar or identical.? Probably to get that extra 1W just required more drive. ? But shame the PA board is no longer available from Yaesu, but I have found them to be that way.? Had FT8100 nice dual band 2m/440 rig that lost power output.? At the time was less than 5 years old.? Sent to Yaesu repair and they sent back stating they no longer service them.? They did not charge return shipping, I guess something.? I found the power control voltage to the PA module was bad.? I jumpered 12 volts to the pin and for last 20 years rig is putting out 50W no matter what the rig display says, hi. ? Most of these repair facilities only want to work on gear their techs are familiar with.? As with repair of anything the tech has seen the problem many times before so knows quickly what to do and how to do it.? Time is money. ? Now we need someone who can take existing FT817 or FT818 PA boards and learn how to repair them.? As you suggested replacing the FETs is probably all that is needed for most.? Just need the FET part number. ? 73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC Spring Hill, Florida also n9ee55@... ? ? On Monday, August 5, 2024 at 09:44:29 PM EDT, Ken N2VIP <ken@...> wrote: ? ? That part number is for the FT-818 board... ? Mike, ? This is the order I placed today. The parts lady understood what I wanted and this is my order... ? 3.00 0.00 3.00 EA B CB1333004 EA 26.17 78.51 1.0 FT-817 FINAL UNIT ? She did say the units had not time set for delivery. ? Dean N2TNN From: ft817@groups.io <ft817@groups.io> on behalf of Mike Bryce <prosolar@...> ? Gang ? A update on the status of the FT-817 Final unit ? First off a bit of Yaesu clarification? ? The board that holds the output transistors is called the Final Unit and is number FR006000. Which mounts on top of the PA board, FR005190 ? According to Yaesu part lady, NO Final units are in stock. NONE are planned to be ordered. ? According to the Yaesu service guy, Yaesu WILL NOT service the original FT-817. They will service the FT-871-ND and the FT-818. ? Ah! You say! Don't they use the same final board? I asked that, too.? ? Mike wb8vge |
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Hi Scott,
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? ?There are independent people in the business of repairing ham equipment. A while back one of them advertised $75 plus parts to repair most rigs. Probably more now. I'm sure the better ones have good reviews. ? ?I commented earlier about buying the transistors for a home repair without realizing that they're surface mount. I'm very experienced generally but never worked with SMT. It might put me off from a home repair even for myself now that I've learned about the component type. ? ?It's still a good receiver on it's own though. Useful for spotting and for SWL. What I don't know is if there's a separate finals section for the high bands or not. I'm sure others here have that information. Joe N1KHB?
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开云体育
Scott,
Just call Yaesu and order the boards. I am getting 3. I am keeping my original 817 for a long time so I am stocking up. Get as many boards that you feel comfortable with. Replacing the board is not that difficult.
Put your order in ... If we all submit an order, any order 2,3,4 5 I would think it would be attractive for Yaesu to run a few hundred boards.
Dean
N2TNN
From: ft817@groups.io <ft817@groups.io> on behalf of D. Scott MacKenzie <kb0fhp@...>
Sent: Tuesday, August 6, 2024 7:47 PM To: ft817@groups.io <ft817@groups.io> Subject: Re: [ft817] Ft-817 bad finals update ?
I am certainly willing to send my FT817 (older) to someone to repair.? I would rather do that than relegate it to an electronic rrecycling – as that is all it is worth without the finals ? Scott aka KB0FHP ? From: ft817@groups.io <ft817@groups.io>
On Behalf Of Ron Wright via groups.io ? When I replaced my 3rd FT817(non-ND) like 5 years ago it was the newer one Yaesu was shipping with the FT817 when it was still in production.? So yes the newer PAs will work with any FT817, ND or not. ? Not sure about the FT818 for it had 6W output, but bet it is very similar or identical.? Probably to get that extra 1W just required more drive. ? But shame the PA board is no longer available from Yaesu, but I have found them to be that way.? Had FT8100 nice dual band 2m/440 rig that lost power output.? At the time was less than 5 years old.? Sent to Yaesu repair and they sent back stating they no longer service them.? They did not charge return shipping, I guess something.? I found the power control voltage to the PA module was bad.? I jumpered 12 volts to the pin and for last 20 years rig is putting out 50W no matter what the rig display says, hi. ? Most of these repair facilities only want to work on gear their techs are familiar with.? As with repair of anything the tech has seen the problem many times before so knows quickly what to do and how to do it.? Time is money. ? Now we need someone who can take existing FT817 or FT818 PA boards and learn how to repair them.? As you suggested replacing the FETs is probably all that is needed for most.? Just need the FET part number. ? 73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC Spring Hill, Florida also n9ee55@... ? ? On Monday, August 5, 2024 at 09:44:29 PM EDT, Ken N2VIP <ken@...> wrote: ? ? That part number is for the FT-818 board... ? Mike, ? This is the order I placed today. The parts lady understood what I wanted and this is my order... ? 3.00 0.00 3.00 EA B CB1333004 EA 26.17 78.51 1.0 FT-817 FINAL UNIT ? She did say the units had not time set for delivery. ? Dean N2TNN From:
ft817@groups.io <ft817@groups.io> on behalf of Mike Bryce <prosolar@...> ? Gang ? A update on the status of the FT-817 Final unit ? First off a bit of Yaesu clarification? ? The board that holds the output transistors is called the Final Unit and is number FR006000. Which mounts on top of the PA board, FR005190 ? According to Yaesu part lady, NO Final units are in stock. NONE are planned to be ordered. ? According to the Yaesu service guy, Yaesu WILL NOT service the original FT-817. They will service the FT-871-ND and the FT-818. ? Ah! You say! Don't they use the same final board? I asked that, too.? ? Mike wb8vge |
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If we "all" order 2, 3, 4, or 5 I think Yaesu would have to run tens of thousands of boards... (there are over 9,000 list members, and over a quarter-million FT-817/817ND/818 were sold)
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Ken, N2VIP On Aug 6, 2024, at 20:35, Dean, N2TNN <N2tnn@...> wrote: |
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Joe,
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the pa works from 1.8mhz to UHF. there are no separate finals for the band segments
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The 817 is 99% SMD, and they are the smallest of parts. Forget the magnifying glass, you'll need a microscope designed for SMT rework.
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I contacted a repair shops, and I was quoted $400 to replace the FETs in the final. He had to do component repair as the assembly is no longer available from Yaesu.
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Mike wb8vge |
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There should be no shortage of 1L6 tubes. There is because people stockpiled, though experts can re-align to use DK92, which is still available at 1/20th price and just as good, but different electrode capacitances. Really failure of a well treated 8i7ND / 818 is unlikely. Stockpiling final boards deprives people that have a failed 871/818. It's possible they've not made Final PA boards since 818 production stopped. More expert repair shops and "hams" can replace the PA transistors, even with ones of a different type that are compatible mechanically and meet or exceed needs for RF bandwidth and power rating. Bias and gain can be adjusted. |
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No microscope needed. A regular magnifying lamp is fine. What we did on rework since 1970s (yes SMD existed then, but on Alumina subtrates) was cut the leads on any leaded device and use desoldering braid and iron to clean. Resistor and capacitor removal by braid or two irons like tweezers. Pre-tin but flat to resolder with dry iron and regular 3mm bit. Specialist gear only needed for BGA or similar ICs with no leads |
Mike EI9FEB