So great to have you back on youtube Peter, i truly thank you for your effort and time you put into these videos! Allways makes my day to see and watch your latest troubleshooting videos. 73s Leo - PA1LDB
Nice and funny video peter! Im sure many people could get crazy taking measurements before being aware a switch was placed in the wrong position ;). I really apreciate your enffort teaching us a bit. See you in next one.
Hey Peter, glad to see that you decided to stay with us. Another excellent informative video, thank you. Still love that tee shirt, you try to make sure you stay safe out there my friend. Andy
" Welcome Back " Peter. Watching your video's is like a kid being in a candy store. We appreciate your hard work. BTW, I still haven't found the " dB, dbm, etc. Levels reference chart. Have a great week.
Thankyou, I have this radio and have invested much into it, replacing display pcb (yaesu) etc fitting battery bank, and this bias switch gotchya is a great tip to chk. for a power output issue.
Nice find Peter, I can't help but to think since that radio is a portable radio it may have been bumped a little too hard and the switch moved. At least it's something the new owner can check very easily if it happens again. Thank you for sharing. Always look forward to seeing your videos.
Good job troubleshooting this unit. What a convenient “fix.” One can only imagine why that switch was in a non-position. If I had to guess, maybe it was during the transport of the radio from his friend’s place it was stood up vertically (on the backside of the radio) so as not to damage the front panel and dials, and the bumpy vibrations of the road trip dislodged the switch from its normal-operation forward position. Or maybe the original owner switched it as a parting gesture . . .
Peter it is amazing as to how that little bios sw got moved to were you found it and it is always appreciated to your effort in teaching us with your time in showing us in video John73
Great Video Peter... I learn so much from your videos and explanations. In future videos it would be helpful for me if you could explain a bit about your test equipment set up when you are making measurements. I always try to see what model number and manufacture of the test equipment you are using and how you have connected everything. Thanks again.
When he says "pre-amplifier", he means "driver for the finals", which, on the first FT-897's serie, are the same fragile transistors as is the FT-817's Power Amplifier, known to blow easily (not anymore on the latest 817s and new 818s). "Pre-amplifier" is commonly understood as the reception preamp so, don't be fooled, here, it is about the stage that drives the power amplifier transistors.
Hello Peter! What was so frikken awsome aboutthis Radio that I loved on it was, the fatass solid VFO Knob. The Rest of it was good enough for the Garbage Can. There's actually no bad radios around - it's just about what you like or prefer to work with. The FT-897D as well as the whole Yaesu Production Line shortly after 2005 did not turn me on no more to buy them anymore. I am so into Kenwood and iCOM I completely canceled Yaesu from my book of HAM Radio RIG's. Thx for your excellent repair docu - keep up good work. 73's de DK5ONV
Great video and through checking, which is a good thing. That switch must have got quite a bang to move, either that or it is to easy to move! Anyway, nice work It is good to see you doing the work checking things over. :-))
Very interesting and unusual and strange about the switch even it been knocked or dropped the switch cannot move it self as the switch did Click when you move the switch up and down Mmmmm yes of course somebody fingers been accidentally knocked it when they were looking inside it that's my guess. It great to seeing you again.
Hello, I have the same problem on an FT-857D to which 3 years ago I had changed the 3 ceramic filters and until yesterday it worked perfectly. While I was testing a V-UHF antenna I saw the output power zero on all bands and all modes and realized it couldn't be ceramic filters. Now I hope to find that switch and if that is in order, how can we fix it? Unfortunately I don't have your equipment. Thanks
@@TRXLab ja Peter du leider ist es was anderes so wie es aussieht sind die Final durch Driver bringt ein leichtes Signal aber langt nicht um zu schalten bzw das Relai arbeitet auch nicht ( Endstufenplatine ) mal sehen was die Teile kosten 😔
i have one on consignment sat and got moved several times over 15 yrs i will check this. i wonder if moving and storing might have tripped it out. i reply if the one i have has the same problem
What is the difference between the Yaesu FT-897D and the 897-DM. I bought one on ebay. Also when i received the radio, the Clar knobe was broken off and the Main Dial had come off, and wouldn't go back on. The inner part of the knob appears to be glued on to the outer part of the Main Dial. Suggestions? I'm a new HAM and not a real electronics guy.
Hi peter. Always Nice to see your video’s. The testpoint of the reference ocsillator is mounted at the underside of the mainbord. Is there a change to do that without removing the board. Grtz Aldert
Another fine video,, But I was hoping you would have checked and see if there was any signs on the back of the radio from being dropped,,, but still a fine video. Thank You
Great diagnostic video. I have this radio and have not yet set it up for DX . Have a antenna to set first. Subbed your channel to follow . Have a great day. Around Bend Oregon
If my fixed filters are bad. Can I just add in the optional filters and use them. To save having to pull the PCB and de solder and replace. Them I do know the optional filter cost a lot. But much cheaper then if I damage the PCB as I don't trust my eyes for that job.
AS a new owner of an FT897D I enjoyed your session on the EEPROM rework. I have had some local repeater characterisitics put into the memory but having some problems i getting the unit to scan those frequencies. Many of the Menu options are missing, so I am still searching for an answer.
Hi Peter, thanks for the video. Educational as always. I got a friend with a damaged processor on the main board. Yaesu wants him to replace the entire board and is not sending a programmed CPU only. Is there any way around this?
Many thanks to Peter from TRX lab for repairing my Yaesu FT897 and making the video .. my top recommendation ... great expertise ... top service ... 73s de DL6RDE / AA1KD, Karl-Heinz "Charlie"
Nice video, my FT897 has low output on 80m, only making 50W’s max. Other bands are ok. Thinking it might be a relay issue in the filter section. Are there any issues i should worry about in removing the PA board to swap out the two 80m relays? Keep them coming love watching them. 73 TE
Relays are always a problem after several years of usage . The second question is related to your skill level which and the right tools I can't judge...
@@TRXLab The skill level is not a problem started work in electronics while still wet behind the ears in 1976 ;-). Ending in having worked in R&D for Avionics and Medical equipment when I retired in 2019 :-) The second question was really about, “are there any hidden screws or solder joints that need to be done first or in an order that's not easy seen to remove the PA board”. Watching the video I had my fingers crossed the PA board was coming out and it would make my relay change a breeze. Thanks for getting back.
Hello, I have a yaesu FT 897, If it works on HF with USB, LSB, AM Mode the output power is only 4 Watt, but if it works on FM mode the output power is 100 Watt, on VHF and UHF works very well and no problems. I would be very happy if someone gave me an idea.
@@TRXLab I was able to creativly repair the knob with a small piece of 1/8" round brass filed with a flat so that it married the two pieces. I was careful not to let the brass go too deeply into the switch base. Its holding very snuggly.
So great to have you back on youtube Peter, i truly thank you for your effort and time you put into these videos! Allways makes my day to see and watch your latest troubleshooting videos. 73s Leo - PA1LDB
So glad you have returned. We learn a lot from watching you, thanks.
Nice and funny video peter! Im sure many people could get crazy taking measurements before being aware a switch was placed in the wrong position ;). I really apreciate your enffort teaching us a bit. See you in next one.
That dang switch. You did a great job in isolating the problem.
Hey Peter, glad to see that you decided to stay with us. Another excellent informative video, thank you. Still love that tee shirt, you try to make sure you stay safe out there my friend. Andy
Thanks Andy ant stay safe as well!
" Welcome Back " Peter. Watching your video's is like a kid being in a candy store. We appreciate your hard work. BTW, I still haven't found the " dB, dbm, etc. Levels reference chart. Have a great week.
Your helping me understand the working of the ham radios and parts ,your Very clever Pete thanks
glad that you liked it
Thankyou, I have this radio and have invested much into it, replacing display pcb (yaesu) etc fitting battery bank, and this bias switch gotchya is a great tip to chk. for a power output issue.
Nice find Peter, I can't help but to think since that radio is a portable radio it may have been bumped a little too hard and the switch moved. At least it's something the new owner can check very easily if it happens again.
Thank you for sharing. Always look forward to seeing your videos.
Thank you! No signs on the housing that the radio was dropped somehow.
You are a very detailed person and eager to share with all hams, I thank you
Thanks for comment
Good job troubleshooting this unit. What a convenient “fix.” One can only imagine why that switch was in a non-position. If I had to guess, maybe it was during the transport of the radio from his friend’s place it was stood up vertically (on the backside of the radio) so as not to damage the front panel and dials, and the bumpy vibrations of the road trip dislodged the switch from its normal-operation forward position. Or maybe the original owner switched it as a parting gesture . . .
Thank you so much for this video. I thought my Ft-897 was dead and moving the switch a few times fixed it.
Peter it is amazing as to how that little bios sw got moved to were you found it and it is always appreciated to your effort in teaching us with your time in showing us in video John73
Thank you John
Thank you very much Peter! I had this problem with my FT857D and it solved it!
Thanks for the video, you explain things very well
Great Video Peter... I learn so much from your videos and explanations. In future videos it would be helpful for me if you could explain a bit about your test equipment set up when you are making measurements. I always try to see what model number and manufacture of the test equipment you are using and how you have connected everything. Thanks again.
video #159 is explaining the basis of anything related to how to connect a meter to a DUT (device under test)
I'm so glad to see you again and again Peter, great episode, 73.
Hello Peter - great video and very informative. I have an FT897ND and find it a really great trx.
73
Thank you
When he says "pre-amplifier", he means "driver for the finals", which, on the first FT-897's serie, are the same fragile transistors as is the FT-817's Power Amplifier, known to blow easily (not anymore on the latest 817s and new 818s). "Pre-amplifier" is commonly understood as the reception preamp so, don't be fooled, here, it is about the stage that drives the power amplifier transistors.
Hello Peter! What was so frikken awsome aboutthis Radio that I loved on it was, the fatass solid VFO Knob. The Rest of it was good enough for the Garbage Can. There's actually no bad radios around - it's just about what you like or prefer to work with. The FT-897D as well as the whole Yaesu Production Line shortly after 2005 did not turn me on no more to buy them anymore. I am so into Kenwood and iCOM I completely canceled Yaesu from my book of HAM Radio RIG's. Thx for your excellent repair docu - keep up good work. 73's de DK5ONV
Great video and through checking, which is a good thing. That switch must have got quite a bang to move, either that or it is to easy to move! Anyway, nice work It is good to see you doing the work checking things over. :-))
thank you
I think the radio must have been dropped from a pretty good height. Very odd though. Nice catch. Thanks Peter.
nothing to see at the housing
Very interesting and unusual and strange about the switch even it been knocked or dropped the switch cannot move it self as the switch did Click when you move the switch up and down Mmmmm yes of course somebody fingers been accidentally knocked it when they were looking inside it that's my guess. It great to seeing you again.
yeah no idea what really has happened here..Thanks for watching
The switch didn't seem that tight. Perhaps when the new owner received the radio, a jolt in shipping slightly moved the switch. Thanks for the video.
really hard to say..
Hello,
I have the same problem on an FT-857D to which 3 years ago I had changed the 3 ceramic filters and until yesterday it worked perfectly. While I was testing a V-UHF antenna I saw the output power zero on all bands and all modes and realized it couldn't be ceramic filters. Now I hope to find that switch and if that is in order, how can we fix it? Unfortunately I don't have your equipment. Thanks
What are you using ..(make -model ) as the sensor between the pre amp and the final for hook up to the oscilloscope?
Top Video Peter das gleiche habe ich am FT 900 hoffe das dein Video das Problem gelöst hat 👍🏻 mal sehen wie es die Zeit erlaubt .
Hoffe es hilft
@@TRXLab ja Peter du leider ist es was anderes so wie es aussieht sind die Final durch Driver bringt ein leichtes Signal aber langt nicht um zu schalten bzw das Relai arbeitet auch nicht ( Endstufenplatine ) mal sehen was die Teile kosten 😔
Show de bola
73 tubarão 🦈
Is the radio opened up for full hf tx? Curious if its been golden screwdrivered? I'd carefully check other aspects of the alignment.
Hi Peter, very interesting video again. What make of Spectrum Analyzer do you use? I am interesting in buying something similar.
video #77 is telling the story
@@TRXLab thanks very much.
Another great episode!!!! TNX!!
i have one on consignment sat and got moved several times over 15 yrs i will check this. i wonder if moving and storing might have tripped it out. i reply if the one i have has the same problem
Hey Peter, glad to see you
73 de DO6JMS
good job guy..very easy to understand...
What is the difference between the Yaesu FT-897D and the 897-DM. I bought one on ebay. Also when i received the radio, the Clar knobe was broken off and the Main Dial had come off, and wouldn't go back on. The inner part of the knob appears to be glued on to the outer part of the Main Dial. Suggestions? I'm a new HAM and not a real electronics guy.
from my memories the D version has a TCXO installed
Hi peter. Always Nice to see your video’s. The testpoint of the reference ocsillator is mounted at the underside of the mainbord. Is there a change to do that without removing the board.
Grtz Aldert
Another fine video,, But I was hoping you would have checked and see if there was any signs on the back of the radio from being dropped,,, but still a fine video. Thank You
Thanks Ron. I have checked the housing but no signs that it has been dropped...
Very interesting and fun to watch, W4GSM
Great work.
Thank you peter.
Do you have video about distortion?
Greetings from North Africa (algeria)
video #93 and #173 and also #77 is showing this and that
@@TRXLab thank you peter
Thanks Peter.
Buy, it's possibile o nave an external external display for my 897D without using a PC? Maggie Smith Arduino or Raspberry ?
not so easy
Hi Peter, very interested in the spectrum analyser you are using? Is it an attachment to your pc? Thanks VK2YS
video #77 tells the story
Great diagnostic video. I have this radio and have not yet set it up for DX . Have a antenna to set first. Subbed your channel to follow . Have a great day. Around Bend Oregon
If my fixed filters are bad. Can I just add in the optional filters and use them. To save having to pull the PCB and de solder and replace. Them I do know the optional filter cost a lot. But much cheaper then if I damage the PCB as I don't trust my eyes for that job.
The optional plug in filters are nothing to do with the operation of the 3 fixed IF filters that go bad. The only option is to change them.
Very nice video
Why have a switch in the middle of the radio that can not the switched on or off unless you take the cover off? Seems very odd to me.
AS a new owner of an FT897D I enjoyed your session on the EEPROM rework. I have had some local repeater characterisitics put into the memory but having some problems i getting the unit to scan those frequencies. Many of the Menu options are missing, so I am still searching for an answer.
try to install the latest firmware
Great Peter! Does the CMS50 able to test selectivity (adding one or two signals close main carrier)? 73, thank you and Stay safe!
There is no automatic test for that but it is no problem to test shape factor of the filter which is the one test method for selectivity.
Great job again my dear friend. 73s Pasquale IW0HEX
Always glad to see you! Thanks my friend
Do you repair old HF Radios?
Peter, what kind of spectrum analyzer do you use?
video #77 tells the story
Hi Peter, thanks for the video. Educational as always.
I got a friend with a damaged processor on the main board. Yaesu wants him to replace the entire board and is not sending a programmed CPU only. Is there any way around this?
Yes that is a problem as they do the same at factory repair no level 3 repairs anymore.
I'd be tempted to place a drop of superglue on that switch.
That really is not a good idea. I would have cleaned the switch and worked out why it seemed the housing was loose around the internals.
Yeah I agree with Mentorcase it is not a good idea...
I had one of these radios. If they had a better dsp instead of audio dsp they would have been much better.
why not secure the switch with hot glue ?
Many thanks to Peter from TRX lab for repairing my Yaesu FT897 and making the video .. my top recommendation ... great expertise ... top service ... 73s de DL6RDE / AA1KD, Karl-Heinz "Charlie"
you are welcome Charlie.. 73s
Hah funny fault, thanks for the video Peter :-)
Nice video, my FT897 has low output on 80m, only making 50W’s max. Other bands are ok. Thinking it might be a relay issue in the filter section.
Are there any issues i should worry about in removing the PA board to swap out the two 80m relays?
Keep them coming love watching them. 73 TE
Relays are always a problem after several years of usage .
The second question is related to your skill level which and the right tools I can't judge...
@@TRXLab The skill level is not a problem started work in electronics while still wet behind the ears in 1976 ;-). Ending in having worked in R&D for Avionics and Medical equipment when I retired in 2019 :-)
The second question was really about, “are there any hidden screws or solder joints that need to be done first or in an order that's not easy seen to remove the PA board”.
Watching the video I had my fingers crossed the PA board was coming out and it would make my relay change a breeze.
Thanks for getting back.
Yay!
Hello, I have a yaesu FT 897, If it works on HF with USB, LSB, AM Mode the output power is only 4 Watt, but if it works on FM mode the output power is 100 Watt,
on VHF and UHF works very well and no problems.
I would be very happy if someone gave me an idea.
I have the exact same problem. Did you find the issue, as it seems to be common?
Just got myself a CMS50 !!!!!!1
Congratulation!!
@@TRXLab thanks Peter, I shall watch your videos again to learn how to use it!
Smart men is such a turn on. Do you ever travel to the states??
lol Thank you
Those stinking switches have made many tecs scratch their head over why they are switched.
Techniker Test ??
In dem Fall denke ich nicht :-)
Meu está com mesmo problema
I have messaged the seller, waiting for reply.
That is the right way give it back if possible
@@TRXLab I was able to creativly repair the knob with a small piece of 1/8" round brass filed with a flat so that it married the two pieces. I was careful not to let the brass go too deeply into the switch base. Its holding very snuggly.
Test the Peter ;-)
73 de Bernd
lol possible but not in this case
damn gremlins lol