¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Date

Re: FT-857 power connector

 

Why would you open the rig to replace the power leads???

Just cut the connector off and crimp on the Andersons, you are making more work for yourself and you will need a high wattage soldering iron (don't use a soldering gun, high current magnetism could damage or destroy components within the rig) to unsolder the power leads.

John
VE7KKQ


On Sun, Jun 27, 2021 at 12:23 PM Zack Widup <w9sz.zack@...> wrote:
I haven't had the radio open yet, but if it's not too difficult, I could unsolder the wires to the connector and replace them with wires ending in Powerpoles (which is what I planned on using, anyway). Thay way, if I want to sell the radio, I can just swap for the original connector again,

73, Zack W9SZ

On Sun, Jun 27, 2021 at 10:51 AM Stu Nutt <stunutt@...> wrote:

Definitely replace the "Molexes" or add Andersons if they are okay.? It's a common problem and I left the original connectors when I bought mine, but cut the lead short and added Andersons when I bought my 857.? I used to work commercially on equipment that had Molexes? on the power supply units and I suspect those aren't intended for frequent plug/unplug, only when a power supply was faulty and needed replacing (only once in several years).

Stu (G3OCR)

On 27/06/2021 04:38 pm, John wrote:
Could it be that the connectors on your three cables and the connector on the 897 are not original? I know some time back when these rigs were new there were complaints that Molex connectors would not fit and that was because the original connectors were NOT made by Molex but by some Asian company.

Why not just cut them all off and use Anderson connectors, frustration eliminated.

I have an FT-857, bought new, it is nearly twenty years old now, it has had no issues whatsoever, it has been a desktop rig, a mobile rig (two different cars) for several years and a portable rig and I'm not gentle with it.

John
VE7KKQ

On Sun, Jun 27, 2021 at 7:13 AM Zack Widup <w9sz.zack@...> wrote:
I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.

73, Zack W9SZ

--
Sty Nutt, G3OCR


Re: FT-857 power connector

 

I haven't had the radio open yet, but if it's not too difficult, I could unsolder the wires to the connector and replace them with wires ending in Powerpoles (which is what I planned on using, anyway). Thay way, if I want to sell the radio, I can just swap for the original connector again,

73, Zack W9SZ


On Sun, Jun 27, 2021 at 10:51 AM Stu Nutt <stunutt@...> wrote:

Definitely replace the "Molexes" or add Andersons if they are okay.? It's a common problem and I left the original connectors when I bought mine, but cut the lead short and added Andersons when I bought my 857.? I used to work commercially on equipment that had Molexes? on the power supply units and I suspect those aren't intended for frequent plug/unplug, only when a power supply was faulty and needed replacing (only once in several years).

Stu (G3OCR)

On 27/06/2021 04:38 pm, John wrote:
Could it be that the connectors on your three cables and the connector on the 897 are not original? I know some time back when these rigs were new there were complaints that Molex connectors would not fit and that was because the original connectors were NOT made by Molex but by some Asian company.

Why not just cut them all off and use Anderson connectors, frustration eliminated.

I have an FT-857, bought new, it is nearly twenty years old now, it has had no issues whatsoever, it has been a desktop rig, a mobile rig (two different cars) for several years and a portable rig and I'm not gentle with it.

John
VE7KKQ

On Sun, Jun 27, 2021 at 7:13 AM Zack Widup <w9sz.zack@...> wrote:
I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.

73, Zack W9SZ

--
Sty Nutt, G3OCR


Re: FT-857 power connector

 

¿ªÔÆÌåÓý

Definitely replace the "Molexes" or add Andersons if they are okay.? It's a common problem and I left the original connectors when I bought mine, but cut the lead short and added Andersons when I bought my 857.? I used to work commercially on equipment that had Molexes? on the power supply units and I suspect those aren't intended for frequent plug/unplug, only when a power supply was faulty and needed replacing (only once in several years).

Stu (G3OCR)

On 27/06/2021 04:38 pm, John wrote:

Could it be that the connectors on your three cables and the connector on the 897 are not original? I know some time back when these rigs were new there were complaints that Molex connectors would not fit and that was because the original connectors were NOT made by Molex but by some Asian company.

Why not just cut them all off and use Anderson connectors, frustration eliminated.

I have an FT-857, bought new, it is nearly twenty years old now, it has had no issues whatsoever, it has been a desktop rig, a mobile rig (two different cars) for several years and a portable rig and I'm not gentle with it.

John
VE7KKQ

On Sun, Jun 27, 2021 at 7:13 AM Zack Widup <w9sz.zack@...> wrote:
I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.

73, Zack W9SZ

--
Sty Nutt, G3OCR


Re: FT-857 power connector

 

Could it be that the connectors on your three cables and the connector on the 897 are not original? I know some time back when these rigs were new there were complaints that Molex connectors would not fit and that was because the original connectors were NOT made by Molex but by some Asian company.

Why not just cut them all off and use Anderson connectors, frustration eliminated.

I have an FT-857, bought new, it is nearly twenty years old now, it has had no issues whatsoever, it has been a desktop rig, a mobile rig (two different cars) for several years and a portable rig and I'm not gentle with it.

John
VE7KKQ


On Sun, Jun 27, 2021 at 7:13 AM Zack Widup <w9sz.zack@...> wrote:
I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.

73, Zack W9SZ


Re: FT-857 power connector

 

No, they are OK. Like I said, all plugs work fine with the FT897D. I suspect something with the pins in the connector on the FT857D. Something doesn't look right about them.

73, Zack W9SZ


On Sun, Jun 27, 2021 at 9:30 AM Jim Kennard <kennard@...> wrote:

Check that the sockets in the connector have not been pushed back preventing the connector to be fully seated with the pins on the radio side.

?

From: [email protected] <[email protected]> On Behalf Of Zack Widup
Sent: Sunday, June 27, 2021 10:14 AM
To: [email protected]
Subject: [FT-857] FT-857 power connector

?

I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.

?

73, Zack W9SZ


Re: FT-857 power connector

 

¿ªÔÆÌåÓý

Check that the sockets in the connector have not been pushed back preventing the connector to be fully seated with the pins on the radio side.

?

From: [email protected] <[email protected]> On Behalf Of Zack Widup
Sent: Sunday, June 27, 2021 10:14 AM
To: [email protected]
Subject: [FT-857] FT-857 power connector

?

I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.

?

73, Zack W9SZ


FT-857 power connector

 

I own both an FT897D and an FT857D.? I have three power plugs that are supposed to be for the connectors on the FT897 and 857. All three work perfectly well on my FT897. However, none of the three will fully seat on the connector that is on the wire on the FT857. I have a hard time plugging any of them in on the FT857. Have any of you encountered this? I haven't been able to figure out WHY the connectors won't fully seat on the FT857 connector.

73, Zack W9SZ


Re: Question for the group. What is a FT857D with an new display, TCXO, and new ceramic filters worth?

 

I have the TurboTuner with great results, Giga Parts around 200 dollars just be sure all gets a fantastic GROUND, and it will perform for years to come!

N1SAX George


Re: cs2140401 panel screen Spare

 

https://www.radioworld.co.uk/yaesu-ft857-ft857d-replacement-panel-screen-cs2140401


Re: cs2140401 panel screen Spare

 

RadioWorld UK, its where i got my spare from.



Mick SA4MDN


Re: cs2140401 panel screen Spare

 

Yaesu parts $157.00 plus shipping.?
1-714-827-7600 in the US?
From Spain? Yaesu EU?


cs2140401 panel screen Spare

 

Dears,
Does anyone know where to buy the spare cs2140401 panel screen?

thanks for advance
--
From Spain, Toni EA2AU


857d and Digital Master

 

I use the memory keying of Digital Master. In it how we can edit the character functions like dot Dash ratio, falling time etc. Because I feel the music of Morse is not pleasing (to me of course).

VU2TE
Unni?


Re: Turning the speaker off for digital

 

¿ªÔÆÌåÓý

If you are using the data port, that is all line level audio, assuming you are using the DATA-U or DATA-L modes.? If you have the sound card in? your computer setup correctly to handle line-level audio for both the input and output, you should be able to turn the volume down, or put an open plug into the external speaker jack to cut off the internal speaker.

Dwight Jones wrote on 6/12/2021 05:56:

How can I turn the speaker off when using digital modes? I have an Xggcomms modem that plugs into the data and audio ports on the rear of the the FT-857D. It¡¯s a really neat setup, but it doesn¡¯t disconnect the speaker. I need high volume to send enough audio to the computer. The noise is deafening¡­

Dwight
KO6FE
CN71

--
Jeff K. Steinkamp (N7YG)
Tucson, AZ
Scud Missile Coordinates
N32.2319 W110.8477


Turning the speaker off for digital

 

How can I turn the speaker off when using digital modes? I have an Xggcomms modem that plugs into the data and audio ports on the rear of the the FT-857D. It¡¯s a really neat setup, but it doesn¡¯t disconnect the speaker. I need high volume to send enough audio to the computer. The noise is deafening¡­

Dwight
KO6FE
CN71


Re: need help : HF bands FM output 100watt SSB is 0watt

 

Have you measured the 50 ohm dummy load from the connector that goes into the radio?
It still looks like an antenna problem to me.?
I would verify that the load really is presented as a good 50 ohm load at RF.
If you have a buddy with a similar rig (power wise) try his transmitter into your setup from the same connector and cable to the antenna and load BEFORE you get seriously into the radio.
You could also have a fault within the radio that does not connect the finals to the antenna, just like a bad connector would act.?
I can't remember the work done on the final board to replace them, but possibly the RF connectors are soldered directly to the board (like so many are) and there is a bad connector there or nearby.
A test of the antenna and load FROM ther connector out to verify that is correct would be the first thing I would do.
My theory on making a lot of adjustments to a radio not working pretty much correctly is don't do it.
Most failures are of only a very few parts and the rest of the radio is OK and should be left alone.
Find that part in the output stage that has a DC connection to the output PL-259 and measure the resistance to the dummy load. It should read close to 50 ohms (assuming no inductor to ground that would provide a DC short circuit.?
Try to not create more problems for yourself while working in the radio.
Recalibrating the SWR is being distracted I think. It is a symptom and probably not the problem.


Re: need help : HF bands FM output 100watt SSB is 0watt

 

On 2021-06-06 08:24, kenny TURKEI wrote:
On Fri, Jun 4, 2021 at 04:37 PM, JD Erskine VA7OTC wrote:
hello John
my watt & swr meter and dummy load rfr 50-250 its only 50 ohm test
thy are my another radios (yaesu ft-817ND , yaesu ft-897D and - icom
7410 ) working perfectly
soon im think VSWR settings menu calibrate again need 100 ohm and 150
ohm resissrance , when i m adjusment shared it there
I'm sorry, I can't keep all of this thread top-of-mind.

I was trying to suggest some, to me, basic steps one might take and, given the surfeit of details, ask a few clarifying questions as much for you or anyone else following along.

I'm not in a position to act as a tech adviser.

I hope you achieve positive results.

73, John
--
J. D. Erskine
VA7OTC/VA7RCN


Re: Blinky's Fun Club

 

I have the same issue that cropped up with mine shortly ago. From a bit of research it seems to be an indication the the PLL is unlocked.?

For my case it seems to be an issue of the 5V getting down to the Ref oscillator end of the board. I have yet to flip the main board over to see what might be pulling the 5V line down


On Tue., Jun. 8, 2021, 17:48 randyasagoat, <randy.ralphs@...> wrote:

Thanks All,

Got some time to play with it today.

I searched the manual and found under Mobile Station Grounding:

Although satisfactory grounding in most installations will be achieved via the DC cable¡¯s
negative lead and the antenna system¡¯s coaxial cable shield, it is often recommended that
you provide a direct ground connection to the vehicle chassis at the mounting location of
the transceiver (installation using the MMB-82 Mounting Bracket will accomplish this, if
the MMB-82 itself is mounted to the vehicle¡¯s chassis). Due to unexpected resonances
which may naturally occur in any location, improper communication system performance
may result from insufficient grounding. These symptoms may include:
RF feedback (resulting in distortion on your transmitted signal);

  • Unintended frequency change;
  • Blinking or blanking of the frequency display;
  • Noise pickup; and/or
  • Loss of memory.

Which might explain the display.

Disconnected everything for 24 hours. Hooked up power and head turned on still flashing.

Another Factory reset, power off power on. 10 seconds later stopped flashing still full S meter.

Change bands, Only band the any sound comes out is FM Broadcast.... Could it be stuck on TX even with the microphone disconnected?

Any ideas?

??? Randy KB0NAV


On 6/6/21 1:04 AM, Howard Waxman, WZ4K wrote:
I would look at all things power supply-related. ...but it's odd this cropped up when you turned your engine off and now won't go away. How is your radio wired to your battery? Should be a straight run both pos and neg but in a modern vehicle you should not connect the neg directly to the battery because of battery monitoring modules? - rather the neg should be connected as close to the battery as possble but not directly. Both pos and neg should be fused. If you're using the automotive AGC blade-type fuses - these frequently become oxidized and need to be cleaned or replaced - definitely check those if you use them as they can present an under-voltage condition.

I would also check your remote head cable first. Can you mount the head on the radio and use the short head cable for that purpose - to eliminate the long cable as a possible cause? I see you already did the full reset.


Re: Blinky's Fun Club

 

¿ªÔÆÌåÓý

Thanks All,

Got some time to play with it today.

I searched the manual and found under Mobile Station Grounding:

Although satisfactory grounding in most installations will be achieved via the DC cable¡¯s
negative lead and the antenna system¡¯s coaxial cable shield, it is often recommended that
you provide a direct ground connection to the vehicle chassis at the mounting location of
the transceiver (installation using the MMB-82 Mounting Bracket will accomplish this, if
the MMB-82 itself is mounted to the vehicle¡¯s chassis). Due to unexpected resonances
which may naturally occur in any location, improper communication system performance
may result from insufficient grounding. These symptoms may include:
RF feedback (resulting in distortion on your transmitted signal);

  • Unintended frequency change;
  • Blinking or blanking of the frequency display;
  • Noise pickup; and/or
  • Loss of memory.

Which might explain the display.

Disconnected everything for 24 hours. Hooked up power and head turned on still flashing.

Another Factory reset, power off power on. 10 seconds later stopped flashing still full S meter.

Change bands, Only band the any sound comes out is FM Broadcast.... Could it be stuck on TX even with the microphone disconnected?

Any ideas?

??? Randy KB0NAV


On 6/6/21 1:04 AM, Howard Waxman, WZ4K wrote:

I would look at all things power supply-related. ...but it's odd this cropped up when you turned your engine off and now won't go away. How is your radio wired to your battery? Should be a straight run both pos and neg but in a modern vehicle you should not connect the neg directly to the battery because of battery monitoring modules? - rather the neg should be connected as close to the battery as possble but not directly. Both pos and neg should be fused. If you're using the automotive AGC blade-type fuses - these frequently become oxidized and need to be cleaned or replaced - definitely check those if you use them as they can present an under-voltage condition.

I would also check your remote head cable first. Can you mount the head on the radio and use the short head cable for that purpose - to eliminate the long cable as a possible cause? I see you already did the full reset.


Re: need help : HF bands FM output 100watt SSB is 0watt

 

On Fri, Jun 4, 2021 at 04:37 PM, JD Erskine VA7OTC wrote:

hello John?
my watt & swr meter? and dummy load rfr 50-250 its only 50 ohm? test thy are my another radios (yaesu ft-817ND , yaesu ft-897D and - icom 7410 ) working perfectly?

soon im think VSWR settings menu calibrate again? need 100 ohm and 150 ohm resissrance ,? when i m adjusment shared it? there?