Re: Replacing TOKO Ceramic IF Filters
I bought my FT-857 new and have never had the filter problem. It manufacturer info is: July 2003 Lot 10 #192 in lot 10
So it is not one with the problem rather one that had not had the problem (yet)
Pat, WA3UOE
On Sat, Mar 19, 2022, 1:17 AM Tony < 73GUDDX@...> wrote:
Howard:
The FT-857D is being serviced at this
time so I don't have it in my possession. However, the FT-897D I
recently purchased has a date code of July 2007 and it has the
same ceramic filter issue. The rig was essentially new in the box
with the sticker attached to the display so it was never used. It
seems the defective filters degrade over time whether the rig is
used or not.
I contacted Yaesu about the ceramic
filter issue and the tech said he wasn't aware of the problem -- I
find that hard to believe.
73, Tony
On 3/17/2022 7:52 AM, W6ZZ wrote:
Hi Tony:
Could you give us the DATE CODE and LOT NUMBER of your FT-857D?
I'm trying to figure out if Yaesu fixed this problem at some point
during the rig's long production run.?
Thanks/73,
Howard, W6ZZ
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Re: 440 no transmit power
The manual is available in several places on internet as a PDF file, free download. This is where I downloaded it:
Zack W9SZ
Please send me a copy.?
Thank you, Jeremy KD4KZZ
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Re: 440 no transmit power
Please send me a copy.?
Thank you, Jeremy KD4KZZ Kd4kzz@...
On Mar 21, 2022 4:57 PM, "J.D. Barron" <jeter.d.barron@...> wrote: ?I can email you a service manual if you need one.
PM me with your address if you want me to send it to you.
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Re: 440 no transmit power
?I can email you a service manual if you need one.
PM me with your address if you want me to send it to you.
|
I got this ft-857d in 2020 second hand. I only started using this radio this year and I know the 440 Mhz band worked at least initially as I had a simplex QSO with a ham a few blocks away. Then I started to try to hit the repeater and got sporadic reports. Then I quit seeing anything on the power meter when in transmit. I finally got a VHF/UHF wattmeter (45 years and never had/needed one) and it confirms no power output on 440 Mhz band. Oddly enough it must be pushing out some power because I can hear myself on my handheld on the next table over. I tried both simplex and with repeater offset there is no noticeable power out. At 14.1V in when I key down the voltmeter on the display drops to 13.2V
Is there a service schematic and troubleshooting procedure to figure out what has failed? I used to work on building/fixing radios/electronics and TVs back in the 70s when I first got my ticket but I haven't worked on these modern ones.?
Barring not finding any info does anyone work on the FT-857d other than Yaesu? I've heard Yaesu service has recently been taking months to turn a fix around.?
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For users of Yaesu FT857, I suggest to update to version 1.1.1 of CatRadio
Download
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Re: Replacing TOKO Ceramic IF Filters
hi
?
i would say, YES ! my ft897 did the same...
?
73
F4FQH
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From: Kevin
O'Sullivan
Sent: Saturday, March 19, 2022 8:31 AM
Subject: Re: [FT-857] Replacing TOKO Ceramic IF
Filters
?
Hello all. I have an FT857. It is quite noisy, on rx, even with the antenna
disconnected. Is this an indication of the ceramic filter problem? (In RF not
SQLCH mode) Or, just what is the give away for this problem. My FT817 has a
better rx noise figure so, hence the question.
_Kevin O'Sullivan. ZL3ABY. ?
On Sat, 19 Mar 2022, 6:17 PM Tony,
<73GUDDX@...> wrote:
Howard:
?
The FT-857D is being serviced at this time so I don't have it in my
possession. However, the FT-897D I recently purchased has a date code of July
2007 and it has the same ceramic filter issue. The rig was essentially new in
the box with the sticker attached to the display so it was never used. It
seems the defective filters degrade over time whether the rig is used or
not.
?
I contacted Yaesu about the ceramic filter issue and the tech said he
wasn't aware of the problem -- I find that hard to believe.
?
73, Tony
?
?
?
?
On 3/17/2022 7:52 AM, W6ZZ wrote:
Hi Tony:
Could you give us the DATE CODE and LOT
NUMBER of your FT-857D? I'm trying to figure out if Yaesu fixed this problem
at some point during the rig's long production run.
Thanks/73,
Howard, W6ZZ
?
|
Re: Replacing TOKO Ceramic IF Filters
The tech said "he did not know about the problem".? I got the same answer 8 years ago!? In Japan they call it "saving face".?? 73 Skip W1FTE?
|
Re: Replacing TOKO Ceramic IF Filters
Hello all. I have an FT857. It is quite noisy, on rx, even with the antenna disconnected. Is this an indication of the ceramic filter problem? (In RF not SQLCH mode) Or, just what is the give away for this problem. My FT817 has a better rx noise figure so, hence the question. _Kevin O'Sullivan. ZL3ABY.
On Sat, 19 Mar 2022, 6:17 PM Tony, < 73GUDDX@...> wrote:
Howard:
The FT-857D is being serviced at this
time so I don't have it in my possession. However, the FT-897D I
recently purchased has a date code of July 2007 and it has the
same ceramic filter issue. The rig was essentially new in the box
with the sticker attached to the display so it was never used. It
seems the defective filters degrade over time whether the rig is
used or not.
I contacted Yaesu about the ceramic
filter issue and the tech said he wasn't aware of the problem -- I
find that hard to believe.
73, Tony
On 3/17/2022 7:52 AM, W6ZZ wrote:
Hi Tony:
Could you give us the DATE CODE and LOT NUMBER of your FT-857D?
I'm trying to figure out if Yaesu fixed this problem at some point
during the rig's long production run.?
Thanks/73,
Howard, W6ZZ
|
Re: Replacing TOKO Ceramic IF Filters
Howard:
The FT-857D is being serviced at this
time so I don't have it in my possession. However, the FT-897D I
recently purchased has a date code of July 2007 and it has the
same ceramic filter issue. The rig was essentially new in the box
with the sticker attached to the display so it was never used. It
seems the defective filters degrade over time whether the rig is
used or not.
I contacted Yaesu about the ceramic
filter issue and the tech said he wasn't aware of the problem -- I
find that hard to believe.
73, Tony
On 3/17/2022 7:52 AM, W6ZZ wrote:
toggle quoted message
Show quoted text
Hi Tony:
Could you give us the DATE CODE and LOT NUMBER of your FT-857D?
I'm trying to figure out if Yaesu fixed this problem at some point
during the rig's long production run.?
Thanks/73,
Howard, W6ZZ
|
Re: Replacing TOKO Ceramic IF Filters
Hi Tony:
Could you give us the DATE CODE and LOT NUMBER of your FT-857D? I'm trying to figure out if Yaesu fixed this problem at some point during the rig's long production run.?
Thanks/73,
Howard, W6ZZ
https://www.qrz.com/db/W6ZZ
|
Re: Replacing TOKO Ceramic IF Filters
Hi Tony
here you have some pic when i replaced filters on my 897 and also the VFO
I also made the filter mod, to, as it said, protect the filter against this issue.
I had not much tools for making this. now i would be better with my IR station.
73s
Olivier
F4FQH
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-----Message d'origine----- From: Tony Sent: Wednesday, March 16, 2022 10:30 PM To: [email protected]Subject: *** SPAM *** [FT-857] Replacing TOKO Ceramic IF Filters All: Need to replace the TOKA ceramic IF filters on my rig and was wondering if anyone knows where I might find a distributor in the U.S. Noticed a few overseas sources on eBay but would rather go with a local source. Also need to replace the same filters on an FT-897 which I believe uses the same board as the 857? Anyone have experience replacing these filters? Any de-soldering issues? Thanks, Tony
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Re: Replacing TOKO Ceramic IF Filters
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On 17 Mar 2022, at 03:24, J.D. Barron <jeter.d.barron@...> wrote:
?Relatively easy to replace. You need enough heat to heat the ground plane enough to desolder.
Be careful not to knock off the nearby parts.
The board will have to be removed, but it is not a difficult job.
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Re: Replacing TOKO Ceramic IF Filters
JD:
Thanks for taking the time to send the
parts list. Will give Yaesu a call tomorrow. It looks like these
are not manufactured by TOKO so they shouldn't have the same
issues.
Tony
On 3/16/2022 9:22 PM, J.D. Barron
wrote:
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Show quoted text
Order then from Yaesu. They are very inexpensive at less than a
dollar each.
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?
H3900587
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CERAMIC
FILTER LTM455EW-A
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? ? ? $0.71EA
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5
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IN STOCK
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H3900589
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CERAMIC
FILTER LTM455GW-A
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$0.71EA
|
5
|
IN STOCK
|
|
H3900588
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CERAMIC
FILTER LTM455HW-AD
|
$0.71EA
|
5
|
IN STOCK
|
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Re: Replacing TOKO Ceramic IF Filters
Relatively easy to replace. You need enough heat to heat the ground plane enough to desolder.
Be careful not to knock off the nearby parts.
The board will have to be removed, but it is not a difficult job.
|
Re: Replacing TOKO Ceramic IF Filters
Order then from Yaesu. They are very inexpensive at less than a dollar each.
|
?
H3900587
|
CERAMIC FILTER LTM455EW-A
|
? ? ? $0.71EA
|
5
|
IN STOCK
|
|
H3900589
|
CERAMIC FILTER LTM455GW-A
|
$0.71EA
|
5
|
IN STOCK
|
|
H3900588
|
CERAMIC FILTER LTM455HW-AD
|
$0.71EA
|
5
|
IN STOCK
|
|
Replacing TOKO Ceramic IF Filters
All:
Need to replace the TOKA ceramic IF filters on my rig and was wondering if anyone knows where I might find a distributor in the U.S. Noticed a few overseas sources on eBay but would rather go with a local source. Also need to replace the same filters on an FT-897 which I believe uses the same board as the 857? Anyone have experience replacing these filters? Any de-soldering issues?
Thanks, Tony
|
Released the new version 1.1.0 of CatRadio.
Major updates:
AF Gain and Squelch slider
Tab with CW and FM functions
CW keyer speed
FM repeater shift and CTCSS tone
Red color VFO during transmit
SWR meter with log scale
CI-V Address entry in hex
Bugs correction and improvements
Download
|
It is a shame it cannot use QT5 to be compatible with Debian 11
even, and slighter older and other linux distros.
Is the source code available to compile, rather than binaries ?
vk4tux
On 27/2/22 05:11, JD Erskine VA7OTC via
groups.io wrote:
toggle quoted message
Show quoted text
On 2022.02.23 14:11:53 (-08:00), Johnny IZ8EWD via groups.io
wrote:
CatRadio?is
the new multiplatform free software to control rig via PC. It
uses the Hamlib libraries and supports many models and
functions.
Please download here??and
reports bugs or suggestions.
_._,_._
Neat. For Windows, have you any idea of how robust the x64
version is?
At ver. 1.0 for the software, would there be an advantage to
using the 32 bit / x86 version instead?
Cheers es 73, John
PS Using Vivaldi as (one of my many) web browsers I easily had a
page translation.
--?
J.D. Erskine
VA7OTC CN88hk
Victoria, BC
|
On 2022.02.23 14:11:53 (-08:00), Johnny
IZ8EWD via groups.io wrote: CatRadio?is the new multiplatform
free software to control rig via PC. It uses the Hamlib libraries and
supports many models and functions.
Please download here??and reports
bugs or suggestions.
_._,_._
Neat.
For Windows, have you any idea of how robust the x64 version
is?
At ver. 1.0 for the software, would there be
an advantage to using the 32 bit / x86 version
instead?
Cheers es 73, John
PS Using
Vivaldi as (one of my many) web browsers I easily had a page
translation. --? J.D. Erskine VA7OTC CN88hk Victoria,
BC
|
W6ZZ
Dan
John D Erskine VE7MHI VA7OTC