I always enjoy your videos. Your enthusiasm & joy in fixing stuff, always comes thru. A labor of love. Much of this stuff is already difficult, yet you make it even much more difficult for yourself when you are recording it for us. - 73 Bob
Peter, thanks again for another great trouble shooting video. Although it was a simple fix in the end folks now know how to troubleshoot this in case there was a real problem. Well done my friend. I learned a while back to just reset the units when they come in. I had one on the bench for two weeks trying to find an issue. In the end it was a menu setting lol. Had me pulling my hair out. Thanks again for a very well explained video.
Hmm, what a coincidence...I just checked out a FT-817 for an estate sale on my bench and fortunately it was working FB, lucky me! I had a suspicion about half way thru the video that it might be the issue you found, but it is so easy to look back when you're not in the hot seat and see a potential problem. Good job Peter, thanks for sharing, I always learn something new watching your great videos. 73 - Dino KL0S
Hi Dino, yeah when you are sitting on the hot chair things are sometimes different...but this is a nice example that an exception always confirms the rule! Thanks for watching Dino your opinion is always highly appreciated! 73
Hi Peter, No mater that the problem was a setting, that was a GREAT video. I learned a lot about the correct method to trouble shoot the system. If one of your goals is to teach your audience about how circuits work and how to logically close in on the problem you succeeded. Thank you for all of your hard work making these troubleshooting videos. You are a Master in your profession. Thank you again, John C.
What an amazing video. I would love to see the customer’s face when he reads the bill! “How much to change one setting”? HI Hi. You show again your extensive knowledge and great troubleshooting procedures. Well done Sir. 73’s Lynton
Very good electronic instruction thanks, ZL1ABR, I am retired electronic service technician I own all the FT-817 FT-857 FT-897 series Yaesu I also help my friends with service requirements when required, once again thanks for a very good video it is very good.
LOL. I was with you all the way - I can even imagine the om playing with the Menu option - set SSB option on. Then the radio stops working, so someone tries to re-flow the solder thinking something hardware has a loose connection. This was entertaining!
Thank you Peter. I always learn something from your videos. Today I learned two things. 1) How diodes are used as switches, and 2) Always reset the radio! hehe. '73, Mike Oh! And I also like those spring-loaded probes you use. The end sticks to the test point nicely. I'll have to get a set!
Even though no repair was required, it was still a very good fault finding and great demonstration of understanding the circuit diagrams. Keep up the great videos. Karl
Another fantastic video Peter! I had this exact same fault with a local ham operators FT-817. The power output indication when the non-existent filter is selected is a bit of a red herring. Obviously the power output meter does not sample actual RF at the antenna socket. :-)
The outcome was more or less a surprise to me. Following your analysis i was thinking quickly, check the switching transistors, check them, check them.... to be really honest I would have gone and look circuit why the "piep-Ing." transistor was not switched on. And probably would have spend cloudless for hours ( gone to driving unit.... etc). Going to the Manuel and switching it on... brilliant! Thanks for this lesson.
I saw a perfect video. Unfortunately my English does not allow me to write to you correctly, but Google helps me. Thank you. Thank you for speaking very slowly. I understand 90% of what you express. I always follow you. Thank you again. 73 de Rick IW2OGQ
I totally agree about the camera value. I recently bought my Sony HDR-CX210 at the pawn shop for 10 dollars American. Works perfectly. Yours does produce ggreat videos and has fast autofocus.
It's close to a problem I have with a FT-857,, Everything works but the 2m SSB, I found it doesn't switch between 2m and 70cm. I believe it to also be switching diodes . Thanks for another great Video !!!
Not wasted time at all, as Techs we have all been led down the garden path by mis-information, including myself..hihi.. Very thorough and great trouble shooting!!! Lloyd - W9NLA
Ha-ha... Brilliant.. A lesson to all of us operating these modern rigs, but also a great lesson in diagnosis and fault finding.. If that had been me my Ärgermanagement-Therapeut would have been earning more $ that day than I did 😁😁..
Boy o Boy, I have been there Peter. I was ready to bin a Alinco until I had an idea that it could be a wrong setting. I must admit at least you had a good laugh about it. M3KQW , merry Christmas.
Great video, thanks so much for doing them. I was betting on a bad diode myself. Being an I.T. guy, rule number one, is "don't trust what the user tells you"
Suspected this (or a loosely installed optional filter) was the problem. Excellent video. Definitely not a waste of time, as I learned a lot about the system layout. Thanks much!
Peter, Fine video on troubleshooting a no repair. I bet you will have a few words for the OM about that menu setting. If it was a test, I would have a few stronger words. :-) WB3BJU
I must admit to had a little laugh at the end but I have learned a lot again from your work how to check everything so big thanks for that Peter! Marry Christmas and an happy new year to you and your love ones.
Menu driven radios can be a real pain in the rear. It can be hard enough for a owner to remember all the settings. When its sent to a shop for repair you have to learn how to use the radio. Great repair Peter, or should I say programming.
Great video explaining troubleshooting techniques. Always a help to me when I have to dig into equipment needing repairs. You can't know to much always more things to learn.
"Nice" fault! Moral: always check for finger trouble first! Extra flux is not always a sign of "unauthorised" repairs. It is sometimes also a sign of FACTORY reworking (due to a poor soldering process during manufacture), and only discovered on test. Note also the extra flux on the filter legs. These and other delicate/expensive items are often fitted AFTER the board is soldered, in order to protect them from the radiant heat/hot air used to melt the SMD solder paste.
Thanks again for the nicely done video. It can be frustrating when this kind of situation arises but the next time it happens, you’ll verify that menu first. You will save time then and by posting this video you inform people of the potential issue. Again, I appreciate and enjoy everything you put on RU-vid. Well done as usual. 73 de VE2VHE
Peter very good work again. Looks like another operator error. Some may say you should have looked at menu first NOT ME. As you asked all the correct questions and got incorrect answers. Love your work 73’s VK3KZ/VK3TKQ
The test is successful in every case. Again, thank you brought us on this trip to find the error. The solution was easy, but that's always in life. If you know it. Thanks for the explanatory video. until next time. '73
Peter, Good video !! What looked like that you might have had to replace a transistor or filter turned out to be debugging a program problem was a VERY GOOD SHOW !!!! and simple fix although we would have not thought so at first !!! Now I want to take this chance to WISH YOU and YOUR FAMILY "A VERY MERRY CHRISTMAS AND HAPPY NEW YEAR !!!
amazing retention of knowledge . It's one thing to read it but another to understand it and yet another to remember it . I lack in all three of those categories unfortunately but with that being said , as a business man you have to charge the customer for all you work . What happens when you hand him the Bill and tell him his menu was set wrong ? Great job though and great video . I wish I was as smart as you in Electronics !
Hi Peter. Nice video, even if the solution is a bit unsatisfying.... btw, the soldering of the transistor /double diode which is right under the big filter does not really look good (at least at the camera) You can see it in the video at around 46:28 on the right side, the one with 2 pins top and one on the down side. Anyway, have a nice Christmas and i hope you get some presents with more difficult faults ;)
Loads of people say “do a reset” and that’d have worked in this case but not teach you what was wrong. Just resetting is as pretty much unscientific as one can get. Worth knowing that if the SSB filter is set and the filter isn’t there or gets dislodged (it is a mobile QRP radio after all) then there’s no output due to no audio path!
Die Vorgehensweise ist erstklassige Detektivarbeit, meinen Respekt. Ich dachte, mir hier Anregungen holen zu können, meinen eigenen 817 wieder zum Laufen zu bringen, aber wenn ich mir das Video so anschaue, zögere ich doch. Kennst du noch einen seriösen Laden in Deutschland, der dieses Modell repariert? Oder vielleicht kennt ja einer der Mitkommentatoren diesen Effekt: WFM-Radio funktioniert. Auf allen anderen Bändern gilt: PKT & FM Rauschen aus dem Lautsprecher und S-Meter 0. Bei allen anderen Betriebsarten ist der Lautsprecher tot und das S-Meter hat Vollausschlag. BTW: Squelch ist ganz aus und Factory Reset wurde ausgeführt.
Vielen Dank für die Rückmeldung! Tja das ist schwierig einen Rat zu geben wer das noch wirklich rpariert. Entweder die Geräte sind zu alt, oder die werden zum Hersteller Zentralservice geschickt, wo dann für eine Repartur schnell 600€ zusammenkommen... Deine Fehlerbeschreibung könnte auf zwei Fehler hinweisen, ist aber leider aus der Entfernung schwer zu sagen. 73
Puh, das ist eine ganze Stange Geld, zumal ich erst vor ein paar Tagen auf einer Webseite den 817 neu für unter 600€ gefunden habe. Da lohnt sich das Einsenden echt nicht. Eher schon eine gezielte Diagnose, obwohl mein Gerätepark nicht ansatzweise mit deinem mithalten kann. Vielleicht kannst du mir ja deine beiden vermuteten Fehlerquellen nennen, was meine eigene Diagnose vermutlich um Tage beschleunigte. Und immer schön hoffen, dass man alle benötigten Ersatzteile auch noch bekommt.
Although it is probably the owner or someone unbeknownst to the owner who changed the settings, I was wandering if some sort of electrical glitch could have changed the settings.
super video ... was man lernen kann, waere: wir müssen immer vorerst auf die defaults reseten ... war aber trotzdem sehr interessant. Danke für die videos
In general, I find the ideas and comments of clients interesting, but not to be relied upon when it comes to eliminating possibilities. It is precisely because they overlooked something, or assumed something which was not true.. that they come to us for help !
Good work Peter. I enjoyed the video. Those murata fioters are known to fail. I dont know if that probem has been solved for the new models. I have an 897d model for my go system. It is a new model and i have had no problems with it. We learn something new every day. 73 ve3hjl
Wow, That was the long way around to that solution! I've had similar situations. What can you do but shrug your shoulders and move on. Well, we all know how to play a good April Fools joke on our fellow 817 owners now.
A couple of years ago more like 4 now.We set up at field day operated until midnight, and a thunder storm came through while we were sleeping in the concrete basement of a TV transmitter site. Never could hear the storm when we woke in the morning all was dead no receive or transmit never did figure out what happened as the antenna never was hit. I still use the antenna today I'm gonna dig it out and see if a near strike scrambled the settings on the optional filter.Jim
What a refreshing video! A good lesson in "Look for the simple stuff first", or maybe for chasing a wild goose! Time spent in the shop is never a waste for me-- Especially when someone else is doing the work! Now, how do you bill the customer for this one? :-)
Hi, I like your approach to fault finding .... I envy your test gear! A friend of mine bought an FT-817 new from a dealer and paid to have a CW filter fitted....the dealer fitted the filter but failed to enable it in the menu....took a while to sort out! Steve G4EDG
TRX Bench Hab mich bis jetzt selbst noch nicht getraut ein repair video online zu stellen.... das ist garnicht so einfach alles so perfekt zu erklären und zu filmen aber werde es demnächst einmal probieren..
HaHa! one of the best stories.. but. seems to me with an adapter-pcb with for example 2SMAs - we could take out and feed back this ssb - signal over the optional-filter - header????? hmmm... 73 de DL1LEP & thank You...
I was thinking from early on the optional filter was on Well just goes to show some radio ops don't RTFM (read the F¥*$#*?G manual) also a cup reset should of put it back to original filter it think ! But thank for the loooong way to find a silly mistake Peter we have all done it and will do it again some time
Got a good one for you my ft991 on vhf would rec ssb but would transmitt fm....On uhf ok ....hf ok they repaired it no charge oh i replaced the finals thanks to your viedos thank you kg6mn
My deepest sympathy goes out to all in Germany (Berlin in particular) for the terrible atrocity that has been recently committed. Especially at Christmas (although, such things should NEVER happen regardless of the time of year). Hope you are all ok your end. Concern and warmest regards (Wayne and Nina, England).
I went through a similar tracing process when repairing similar fault in my FT-817. In my case though, it turned out to be a bad IF transformer. Here's my video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-aqprIlSXIIg.html
you probably dont give a damn but does any of you know a trick to log back into an Instagram account?? I stupidly lost my account password. I would love any assistance you can give me
@Randy Watson I really appreciate your reply. I got to the site through google and I'm in the hacking process atm. Takes a while so I will get back to you later when my account password hopefully is recovered.
Wow!! How very frustrating but a really good learning experience 😀 I love your excellent videos and have learnt so much from watching them. 73...Ian Harling.G7HFS/PA3IKH.
Fantastic video as usual. Great detective work. You seem to exhaust every effort and detail to solve the problem.Germans are simply the best at all tech they touch. What video camera are you using? Thanks for the fantastic video. Thumbs up as usual.
Thank you so much! Well we should do what we love :^)...but good engineers are all over the world not only in Germany :-) The video cam is a value for money type it is a Sony HDR-CX240E with Zeiss lens.. Thanks for watching! 73
Trace the path from the balance modulator, since it is working, the switch might be defective, but ceramic filters often go bad because there are never any blocking capacitors on the input/output leads. Is RX normal, or distorted/reduced in levels?
does this transceiver have a PI5V331 configured as a double balanced Tayloe Mixer if so then check the 74HC74 configured as a Johnson Counter to see if the quadrature switching signals are there or not if they are not then the problem might be the oscillator quadrupler might not be working as that is what drives the 74HC74 configured as a Johnson Counter to generate the quadrature signals that drive the PI5V331 configured as a double balanced Tayloe Mixer, this is just my thoughts on the problem as I don't have the schematics, That optional filter not being fitted didn't cross my mind.
Hello there. i watched your video on your FT-817nd repar. i wonder if you can give me some ideas about my FT-817nd. my radios problem is that it has zero modulation on any mode and any band but i have outpot power on am, fm and pkt . i hade modulation for a short time when i changed to front antenna connector but it lasted for a minute .i toke the mainboard out and the modulation came back some sekonds . i havent seen any bad connections on the board . Hope for any ideas 73 de SA6BSN
