#75 Ham Radio repair: Kenwood TS-850 S local board with leaking capacitors

Ғылым және технология

This radio is known for leaking capacitors therefore we show in this episode the preventing maintenance to be done for this radio.
We go slowly step by step and explain every step.

Пікірлер: 229

  • @dennispeake1877
    @dennispeake18778 жыл бұрын

    Awesome, Peter. You have exhibited extreme patience in showing how to clean a circuit board. It gives great information for novices and a refresher course for ticketed hams. Many thanks for sharing this information for others to get benefit from.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Dennis Peake Hi Dennis, thanks very much for your comment. Yes I'm glad if there is a use of my videos. happy 2016 Cheers Peter

  • @toddanonymous5295
    @toddanonymous52958 жыл бұрын

    Peter, As far as I am concerned your repair wins the beauty contest. But the real beauty is your superb craftsmanship and attention to detail. That is why your subscribers always look forward to seeing another video posted by you. Happy new year to you and your family and I look forward to another year of interesting videos from my mentor across the world.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Todd Anonymous Hi Todd, thanks you very much for the kind words. I'm always glad if there is a need for my videos. Have a Happy 2016 for you and your family! 73

  • @charlieoscar09
    @charlieoscar098 жыл бұрын

    Peter another great video showing how to deal with a real problem on older radios...Thanks for the advice

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +charlieoscar09 No problem have a happy 2016! 73

  • @toastnotoflondon8500
    @toastnotoflondon85003 жыл бұрын

    Tis is a very helpful video and very well explained. Good job Peter. Thanks.

  • @MrCarlsonsLab
    @MrCarlsonsLab8 жыл бұрын

    Another great job Peter! I had one of those come through years ago, unfortunately the board was toast. Glad to see you resurrected it! Another Happy Kenwood :^)

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Mr Carlson's Lab Hi Paul, oh ja those early production 850's :^) But still a radio to keep! 73's Peter

  • @yv5grb

    @yv5grb

    4 жыл бұрын

    What happened to Peter? Do you know? Thanks

  • @spaceshantynow1851
    @spaceshantynow18513 жыл бұрын

    Thank you so much Peter! I got a TS-850S recently as my first rig and have been enjoying it until it started acting up the other day. Someone recommended that I take a look at that board. I am glad I did! It is in much worse shape than the one you repair here. Your video was very useful in helping determine if this repair is something I want to tackle myself. Cheers!

  • @SquantoTerror
    @SquantoTerror8 жыл бұрын

    Another great repair/maintenance video! Thanks so very much for posting your videos. I really enjoy them and learn a lot from you.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Nicholas Hyer Hi Nicholas, I'm always glad that you like it 73

  • @oscarzuluoneoscarsierra7034
    @oscarzuluoneoscarsierra70345 жыл бұрын

    Thank you very much all the valuable advices of yours😊 Very appriciated👍💪 Thx!🙏🏻😉

  • @Millstone_Firewood
    @Millstone_Firewood8 жыл бұрын

    Very nice detailed work Peter. I learn so much watching your videos!

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Mitchell Smith (KB3GKC) Thank you Mitchell for the feed-back ! 73's

  • @Chrysiotis
    @Chrysiotis8 жыл бұрын

    Excellent work on this very delicate board! I wish you another successful and healthy year. Jim,N1UVK

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Chrysiotis Hi Jim. yes acid made it tricky to work on the board. Thanks and HNY!

  • @michaeldavidheit
    @michaeldavidheit4 жыл бұрын

    Peter, based upon this video I bought the LCR meter and I am so glad I did. The meter is a great addition to my workbench (I'm an electronics engineer ) and also for my Ham radio use. I just got a TS-850SAT from a fellow ham friend and I plan to watch this video over so I can remember all the details to check out this rig. Thank you so much for all your wonderful and very educational videos. Now figure out how to get the software that came with the meter to work ...

  • @lyntonprescott3412
    @lyntonprescott34125 жыл бұрын

    Outstanding work. Well done. 73’s Lynton.

  • @MrEamo37
    @MrEamo375 жыл бұрын

    Well done Peter,An excellent job as usual,I also own the kenwood ts850 and after seeing this video I realise I too will have to take the covers off it and carry out an inspection on these boards..but after watching your video I will be more aware what to look out for and hopefully do as good a job as what you have done here in your video......Well done sir.......

  • @acestudioscouk-Ace-G0ACE
    @acestudioscouk-Ace-G0ACE4 жыл бұрын

    Very interesting and a common problem I'm told. Thanks and hope you are well.

  • @MacVision3D
    @MacVision3D8 жыл бұрын

    Very nice repair peter ,,i love the methodical way you go about your repairs its very impressive ..i have learned so much from you best 73's Chris

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +MacVision Hi Chris, thanks for the nice feed-back, always glad if it is helpful. 73

  • @hamaholic
    @hamaholic5 жыл бұрын

    Tremendously helpful! It was easy to fix this problem and restore my TS-850S with your excellent documentation. Thank you!

  • @TRXLab

    @TRXLab

    5 жыл бұрын

    Thanks for feed back 73

  • @alancordwell9759
    @alancordwell97598 жыл бұрын

    Very good repair Peter- as always!

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Alan Cordwell Thank you Alan have a happy 2016

  • @alancordwell9759

    @alancordwell9759

    8 жыл бұрын

    TRXBench you too Peter!

  • @henryseese1117
    @henryseese11176 жыл бұрын

    Excellent repair work

  • @TRXLab

    @TRXLab

    6 жыл бұрын

    Thak you ! 73

  • @JohnJones-vf1zk
    @JohnJones-vf1zk5 жыл бұрын

    Excellent video, very informative and entertaining 😊👍👏

  • @TRXLab

    @TRXLab

    5 жыл бұрын

    Thanks John!

  • @technos123
    @technos1238 жыл бұрын

    Another very good repair. Please keep the videos coming for 2016 as they make great viewing.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +technos123 Hi, I will do my very best! Thanks for watching HNY!

  • @OrbiterElectronics
    @OrbiterElectronics8 жыл бұрын

    Very professional repair Peter, very nice indeed. Cheers John

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +orbiter8 (John) Thank you John! Will watch your new video tonight! 73 Peter

  • @gregorywest2029
    @gregorywest20298 жыл бұрын

    Good save on the board, Peter. The solder braid is also known as Solder-Wic. And the Pen brush Firbergalss scratch brush. Thanks again for the great video. Merry Christmas and have a safe and happy new year. Greg

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Gregory West Hi Greg, ah very good to know! Thanks for watching and happy 2016 all the best and 73

  • @wa6gxq
    @wa6gxq8 жыл бұрын

    Thank You Peter. Very nice video! 73

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Barry Kelly Hi Berry, thank you very much! 73

  • @jimmalagese6707
    @jimmalagese67075 жыл бұрын

    THIS GUY IS AWESOME.. WATCHED SEVERAL OF HIS VIDEOS SOME SEVERAL TIMES. I OWN A TS-850S. MY AUDIO WAS SO VERY LOW COULD NOT HEAR. SO I REMOVED THE IF BOARD CHECKED MY C187 AND FOUND IT TO HAVE NO CAPACITANCE. MY METER SAID 0.00 SO I REPLACED WITH A NEW ONE EXACTLY 470UF AT 25V. NOW HAVE ROBUST AUDIO . THANK YOU PETER...

  • @BobMellor1954
    @BobMellor19548 жыл бұрын

    Great video Peter, all the very best to you and yours in the New Year . Thumbs up and regards Bob (UK)

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Bob Mellor Hello Bob, thanks you! Have a happy 2016! 73

  • @michaelcarey
    @michaelcarey8 жыл бұрын

    Great video! Replacing electrolytic capacitors (even before they start leaking) is a good preventative measure in any old radio. I had a TS-450S on the bench that was doing "strange things" when transmitting... distorted audio, ALC issues. I replaced all the electrolytic capacitors with quality Rubicon 105 DegC and it was like a new radio!

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Michael Carey Hi Michael, thanks for feed back. Yes agreed preventive maintenance should be done before capacitors leaking out and yes you find funny things the radio is doing with old caps.. 73

  • @Satchmoeddie
    @Satchmoeddie7 жыл бұрын

    Nice video, Peter! NICE JOB OF SAVING THAT BOARD! You are a real pro! Your customers are lucky to have you! I see a lot of the lazy repairman's nip off old the leads and solder the new ones to them, use thru hole on SMD, and they don't ever clean up that corrosive caustic electrolyte mess either. I just got a TS690 and am hoping I do NOT find a corrosive mess like that, and I pray it's not encroaching into those unobtainium chips. We call changing all the electrolytic caps, "Shotgunning" the radio, or amplifier, television, compressor limiter, or whatever happens to be open and on the bench at the time. It like we use a shotgun to spray in ALL new electrolytic capacitors, to eliminate problems, just like you would with a sawed off shotgun, and a spray bunch of outlaws with lead. Once you have it open there is NO EXCUSE for NOT CHANGING THOSE AND GETTING RID OF THEM BEFORE THEY FURTHER DAMAGE THE BOARD. You have the radio open, the boards are exposes, the soldering iron is hot, the parts bin is right there, and there is JUST NO EXCUSE! I worked for a real shyster who used to tell me to "leave those questionable parts in there, so the customer will return in 2,3,4, 6, 8 weeks, and we can charge him another $150 bench fee." I have some old aggressive cleaners that take the corrosion off, when nothing else will, but usually the solder mask comes off too. It is a method of last resort. Fiber glass abrasive pens, or even the old very abrasive ink erasers, kind of work for scrubbing off the corrosion. Yes, we do call that solder braid. I have bare copper braid, and a tinned copper braid impregnated with flux. I also have PCB repair kits with foil, and catalyzed thermo-set two part epoxy adhesive. Chloronated brake parts cleaner will dissolve the solder mask, so you can get under that soldermask, but our EPA has taken chloronated solvents off the market. The stuff also takes the corrosion off too, but I can't buy it anymore. It is illegal now. I have a few tiny bits saved from small canisters, bottles, and spray cans. I poured it into silicon gasketed whiskey flasks, because it will evaporate from the original cans. I saved it for emergency uses, like this. I used to be able to drive down to Mexico and buy the stuff, but no more.

  • @berndb.5097
    @berndb.50978 жыл бұрын

    Hi Peter because of your video I looked into my TS-850. Fortunatly only one cap was leaking. It was the one that was already changed in your transceiver. Your video helped me with the repair. Many thanks! best 73´s and a happy new year 2016

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Bernd B. Hi Bernd, ah very good to hear that! I would recommend to test ESR and if not possible swap the other Caps as well! Thanks for feed-back . Happy 2016 73!

  • @dinosworkshop6870
    @dinosworkshop68708 жыл бұрын

    Great job on a very difficult problem. People overlook vintage radio capacitors. In audio equipment of vintage age they can be restored to their former glory with a few component replacements. Surface mount is not for the newbie or the faint of heart. Great video and tutorial. Excellent as usual.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Satellite_Guy Thank you, yes this is nothing for the faint of heart..It's really a bit tricky. Have a happy 2016! 73 Peter

  • @metclapton
    @metclapton8 жыл бұрын

    HI i did this repair years ago and good to see it in detail here , There is issues with the 5V on the PLL becoming unstable sometimes too in the model so that is another one to watch , It is a great radio i do like it good performance i would not get rid of mine ok good informative video as always hope you had a good Xmas and happy new year

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +metclapton Hi thanks for feed-back! Yes the TS-850 is worth the maintain.. all the best and happy 2016

  • @rienvandervorm3032
    @rienvandervorm30328 жыл бұрын

    Best wishes Peter for 2016, I like to see your repair video's and all the info you give is useful. By the way you have verry nice measuring equipment.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Rien van der Vorm Happy 2016 Rien and again Thank you 73

  • @johnbigbooty
    @johnbigbooty4 жыл бұрын

    Great video Peter. I still have my TS-850. The odd thing is that I have only had one capacitor go bad, the one that affects the display. Other than that it has been running for 29 years, 24 hours per day/7 days per week. It is a low serial number also! Thanks again!

  • @PeterWalkerHP16c
    @PeterWalkerHP16c8 жыл бұрын

    Enjoyable and interesting videos! Glad to see a great job saving a _throwaway_ SMD unit. My old Kenwood 520 has no SMD so re-caping might be a little easier. Almost all my test gear is 1980s through hole gear Hameg, Fluke and Hitachi so I can repair it.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Peter Walker Hi Peter thanks for watching and feed back! 73

  • @fey4949
    @fey49498 жыл бұрын

    Hello Peter, very nice repair job. Leaking capacitors can cause serious damage and are difficult to repair. I enjoy your video's and they started me to do my own repairs hi. Best wishes to you and your family

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +FEY Hi, thanks for feed back. God luck with your repairs! Happy 2016 all the best and 73

  • @dennisqwertyuiop
    @dennisqwertyuiop8 жыл бұрын

    very good repair thanks for video

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +DENNIS N Thank you Dennis!

  • @Craigcul
    @Craigcul8 жыл бұрын

    Very nice job had the same sort of problem with old video cameras realy a pity when you get one where the corrosion has gone to far and you can no longer save the board. but you did an exelent job.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Craig Culverwell Hi Craig, yeah in the beginning when industry started with this kind of smd caps there must have been a production problem as we have a lot of different gear which is suffering from this... Thanks for comment. 73

  • @RupertHandford
    @RupertHandford8 жыл бұрын

    Another fantastic video Peter. Very best wishes for 2016.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +rupert handford Thank you Rupert and happy 2016

  • @korvarad
    @korvarad7 жыл бұрын

    Nice job... Im glad to see this old rigs still working... 73 ;)

  • @TRXLab

    @TRXLab

    7 жыл бұрын

    Thanks for watching 73

  • @korvarad

    @korvarad

    7 жыл бұрын

    NO-NO seriously, your video is great, i´m begining with HAM and there is so many good info. Especialy about this 850s i think about buy it, from 2hand, now i know where to watch a what to check. I have in my shack realy old one Yaesu FT-840 and FT-857 so, specialy for FT-840 is the time to check capacitors, i love this radio and i dont want see him to die, beacause i don´t check old capacitors. (sorry for my english) Thank you again 73

  • @TRXLab

    @TRXLab

    7 жыл бұрын

    all is fine it was NOT meant ironic in any way!

  • @davidrobertson3904
    @davidrobertson39048 жыл бұрын

    This is an excellent presentation. Great example of a surface mount repair. 73 kd1na

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +David Robertson Hi David, thanks you, always glad that you like the videos! 73

  • @KD0CAC
    @KD0CAC8 жыл бұрын

    Good job as aways . I have repaired a number of these and read up on some history of this , apparently Kewood got a bunch of counterfeit caps in there earlier production numbers , there was a ser. # where they found & used known to be good caps , that also coincided an upgraded chip set , as I remember 6632 new numbers . I now own 3 of the 850's , one early production & 2 later production , they sound so good on recv. & trans. that I resist selling for newer rig .

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +KD0CAC Hi John, fully agreed these 850's are really great radios and I fully understand that you keep this radios! Thanks for comment and additional infos 73 Peter

  • @BrockNanson
    @BrockNanson Жыл бұрын

    Thanks to this video, I took on this capacitor replacement project. Plenty of leakage, but the rig was still working. You should recognize that about 500 views of this video were me, as I gained confidence... 😉 I couldn't get my copper as shiny as yours, but the acid is gone and the board has been covered with solder resist again (looks like a two year old's coloring book unfortunately... 😬). The radio powered up again, so I'm optimistic it will continue for a while into the future! I'm wondering how you know which caps should be proactively replaced elsewhere in the radio? I asked this question in a more recent 850S video too - hopefully you will see one or the other! I wouldn't have attempted this without your KZread help, so a big thank you!

  • @TRXLab

    @TRXLab

    Жыл бұрын

    Very good, like it!

  • @bundylovess
    @bundylovess8 жыл бұрын

    Nice repair

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +allan mitchell Glad that you like it and thanks for stopping by. 73

  • @lylewatts6370
    @lylewatts63706 жыл бұрын

    Well thanks for the video and now I will check my TS-850s and see if I have the same problem. I like the radio and it has a very broad banded internal antenna tuner

  • @TRXLab

    @TRXLab

    6 жыл бұрын

    Hope you 850 is fine...73

  • @GarthWheeler
    @GarthWheeler4 жыл бұрын

    thanks for the video thank goodness my radio has been done

  • @DJCaverna
    @DJCaverna8 жыл бұрын

    Another great repair ... big 73 from Brazil - PY7DJ

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +DJ Caverna Haroldo Bradaschia Neto Hi Neto, thank you. All the best an 73!

  • @robertcalkjr.8325
    @robertcalkjr.83258 жыл бұрын

    Nice job, Peter. Thanks. At the end it didn't look like the ribbon cable was in the connector very well.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Robert Calk Jr. Hi Robert thanks you. Oh okay will double check the ribbon cable. happy 2016 73

  • @robertcalkjr.8325

    @robertcalkjr.8325

    8 жыл бұрын

    +TRXBench Happy New Year to you as well.

  • @26sd135
    @26sd1355 жыл бұрын

    Great job.

  • @TRXLab

    @TRXLab

    5 жыл бұрын

    Thanks for feed back

  • @Davidjb37721
    @Davidjb377218 жыл бұрын

    turned out to be a very nice job

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +David Bohanan Hi David, thank you

  • @KrissBartlett
    @KrissBartlett8 жыл бұрын

    Great work on that I thought at first you couldn't fix that but you got it all ok you very good at your job I wish you were in Australia I have a cb radio all rusty I like fixed but need some one local thanks

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Kriss Bartlett Hi Kriss, thanks for comment! Yeah Australia would be an option to live :^) 73

  • @wolfhawg
    @wolfhawg8 жыл бұрын

    Hi Peter. Thanks for the interesting video. It is my understanding that the caps with the blue printing, tended to leak more then the ones with the black printing. The black ones were used in the late model 850s.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +bob smith Hi Bob, yes the early production cap's definitely have a serious issue. Thanks for comment 73

  • @Mr_Meowingtons
    @Mr_Meowingtons8 жыл бұрын

    good work! i myself am working on a old PC main bored that has a few leaking caps from the capacitor plague. I only doing it so i can have a old PC to run windows 98 and a lot of older Dos games.. keep that vintage stuff working.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Matt K Hi Matt, yes fully agree keep the vintage stuff working :-) Thanks for comment..

  • @budleyca1
    @budleyca18 жыл бұрын

    Great job again, looks like that board got rescued just in time... Bud...

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +budleyca1 Hi Bud, thank you. Well may be it was already a bit to late. We will see. happy 2016

  • @budleyca1

    @budleyca1

    8 жыл бұрын

    All the best for 2016...

  • @RagnarEE
    @RagnarEE8 жыл бұрын

    Very good Peter👍👍 The coper braid is caled "solder wick" by the way.I will also recomend the chanel EEVblog (by Dave Jones) Very educating and also VERY ENTERTAINING!!!!😄😄👍I am new on your chanel but i will probably see all your videos eventualy😄And please ecsquse if my writing is wrong, I'm norwegian 😊

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    Hi, welcome to my channel and thanks for feed-back! Enjoy my videos Cheers

  • @TheRadioShop
    @TheRadioShop8 жыл бұрын

    Another good repair video Peter. Well done.Icom has their bad ribbon cables, Kenwood has their leaky smt caps.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +The Radio Shop Thank you Buddy! Yes so all the brands do have their own weaknesses... Ähm Buddy by the way do you receive your personal messages over youTube?? 73 my friend!

  • @TheRadioShop

    @TheRadioShop

    8 жыл бұрын

    +TRXBench Hi Peter. No I did not receive a personal message. I sent you one yesterday and was wondering if you received it. Sometimes youtube does that. If you want to email me buddymclawhorn@sprintmail.com That way I be sure to get messages. 73 :)

  • @jimmalagese6707
    @jimmalagese67075 жыл бұрын

    WHEN I REPLACED THESE CAPACITORS MY SOLDERING WAS POOR. SO I ORDER RADIAL CAPS. I BOUGHT ABOUT 20 THEY WERE CHEAP. USED 25 VOLTS. CHECKED EACH CAPS AND USED THE ONES CLOSEST TO THE 10UF. I HAD TO DO SOME SOLDERING THAT WOULD MAKE PETER CRINGE IM SURE. BUT I CHECK EACH ONE IN THE CIRCUIT FOR SHORTS. I HAVE A WORKING CAR BOARD ALL NEW CAPS...THANKS PETER FOR GIVING ME CONFIDENCE...

  • @gss15004372
    @gss150043728 жыл бұрын

    very good repair thanks for video Follow your video 73.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +hussain alonzi Thank you Hussain, glad that you like it.

  • @davideisenberger6197
    @davideisenberger61977 жыл бұрын

    Very nice Peter! a Big THUMBS UP! 73's de K8KEM

  • @TRXLab

    @TRXLab

    7 жыл бұрын

    Thank you David! 73

  • @hi......................636
    @hi......................6368 жыл бұрын

    Fantastic..I have repaired a few of these ..I seen one burned so bad i could stick my pinky finger through the board near that regulator..Them things are a mess

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +tim jude Hi Tim, yes the acid is very aggressive.. Thanks for watching 73

  • @majordisappointment8692
    @majordisappointment86928 жыл бұрын

    Very nice repair job looks good to me. Those capacitors are nasty when they start leaking.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +mac theknife Hi, yes fully agree. Thanks for comment 73

  • @iw0hex
    @iw0hex8 жыл бұрын

    Tnx for your video Peter. Great job !!! HNY. 73s de Pasquale IW0HEX

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Pasquale IW0HEX Thank you Pasquale! happy 2016 my friend 73's

  • @jeffasellers
    @jeffasellers7 жыл бұрын

    great video thanks

  • @TRXLab

    @TRXLab

    7 жыл бұрын

    Thank you Jeff 73

  • @weld3z
    @weld3z6 жыл бұрын

    What a clean job .. lol I'm here I want to change by my self the anteena cable on my old FT3000 I know it's super easy job to someone like you but super hard to me .. wish me good luck I never see any of my radios from inside ..

  • @TRXLab

    @TRXLab

    6 жыл бұрын

    Thanks Ahmed and good luck with your project! 73

  • @MAURICIOFALCAOPY5MZ
    @MAURICIOFALCAOPY5MZ8 жыл бұрын

    Sensacional repair Peter!!! You're fantastic!!! Thanks a lot

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Mauricio M. Falcao Thank you Mauricio !! 73 Peter

  • @YvoMunizAlphaTelecom
    @YvoMunizAlphaTelecom8 жыл бұрын

    Hello Peter. Nice job! 73's

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Yvo Muniz (ALPHA TELECOM) Hello Yvo, thanks you very much my friend! All the best to Brazil 73

  • @sinkosav

    @sinkosav

    8 жыл бұрын

    +TRXBench yes those dds chips is known to fail.ts 690 and 450 have 2 of them only,and 850 have 4 and are not produced anymore...i have 2 of them new in original package,from my time when i work for kenwood repair center..good job peter.

  • @ChrisOrtizSirCable
    @ChrisOrtizSirCable8 жыл бұрын

    Great Job my friend.......73s

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Chris „Sir Cable“ Ortiz Thank you Chris! 73 and Happy 2016

  • @Chipz0r
    @Chipz0r8 жыл бұрын

    Oh how i hate those fibre glass pens , when they get in your skin. Great vid , thanks

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Chipz0r Oh yes you are soooooo right :^) Thanks for comment 73

  • @wadehicks9270
    @wadehicks92708 жыл бұрын

    Very good

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +wade hicks Thank you. 73

  • @GeorgeEI7KO
    @GeorgeEI7KO8 жыл бұрын

    Excellent video Peter. Great repair. You make it look so easy lol. What was he thinking with the cap beside the regulator?? God knows. Happy new year my friend. George

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Irishman1127 Hi George, glad to see you here :-) Thanks for feed-back, yes may look easy but with acid on the solder points they don't reflow.. So it is really a fight to maintain the pads.. happy 2016, 73 Peter

  • @jimmalagese6707
    @jimmalagese67075 жыл бұрын

    A NOTE ABOUT CHECKING UR CAR BOARD. WHEN I FIRST CHECKED DID NOT SEE ANY PROBLEMS BUT AFTER A FEW MONTHS OF USE, THINGS STARTED TO ACT FUNNY WITH MY RIG. SO LOOKED AGAIN AND THEY LEAKED. SO DONT WAIT, CHANGE THEM ASAP...

  • @notfallmed
    @notfallmed8 жыл бұрын

    Tnx good Job. 73 Peter

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +notfallmed vielen Dank. Alles Gute und 73

  • @Gw0wvl
    @Gw0wvl5 жыл бұрын

    Good video , I've also owned many 850's over the years , I've also got a similar video of replacing the caps on the carrier board , Recently I acquired another 850 I replaced the caps in that to , Carrier PCB, Display PCB and the couple around the audio amp as these can be problematic as well , I've only just had in a replacement carrier PCB for the 850 , It does away with the four DDS chips and has a single purpose programmes IC to do the job if the four DDS chips ... That's also in my site ... Regards de Gw0wvl 👍

  • @TRXLab

    @TRXLab

    5 жыл бұрын

    That PCB looks very good where did you get it from?

  • @wakkowarner7391

    @wakkowarner7391

    5 жыл бұрын

    @@TRXLab He's probably talking about the board that's available on eBay. Search for 'Kenwood TS-850S CAR unit board'.

  • @spaceshantynow1851

    @spaceshantynow1851

    3 жыл бұрын

    How has your experience with been with that new replacement PCB carrier board for the TS-850S been? I see them for sale out of Ukraine and Italy but can not find any reviews on their performance. I think for my situation I would like to purchase one but would just like to know what some thoughts were on it. Thanks!

  • @sandrosechi2624
    @sandrosechi26246 жыл бұрын

    Bravissimo

  • @TRXLab

    @TRXLab

    6 жыл бұрын

    Thank you Sandro 73

  • @sinkosav
    @sinkosav3 жыл бұрын

    good news is that new DDS board is developed ,with only one modern DDS chip ,it is available via e bay...so more ts850 can be saved

  • @ronniepirtlejr2606
    @ronniepirtlejr26062 жыл бұрын

    Would it help to wash the area that has electrolytic leakage, wash it down with vinegar a few times before covering it with lacquer to dilute/ neutralize the acid? I do this with leaking batteries. Would it have the same effect on electric capacitor acid?

  • @bfx8185
    @bfx81858 жыл бұрын

    Nice video as usually, little bit long :) but it's OK. My suggestion is to apply some sodium bicarbonate to this board to neutralize acid residue. After that clean it using IPA and after that soldering and apply plastic. Only to prevent that residue of acid from capacitor can still damage the copper on the PCB. I think mechanical cleaning using fiberglass brush is not enough.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +BFX chanel Hi, thanks for the hint, will check it out. Yeah I know it was a little bit long just wanted to give as much as possible support if anyone is going to do it.. All the best

  • @PapasDino
    @PapasDino8 жыл бұрын

    Nice job Peter! What did you finally use to get down to the copper level on the PCB? You mentioned sand paper so I'm just curious as the abrasive fiberglass pen can only go so far. BTW, you have to be careful with those pens as the fiberglass strands that come off of the pen can be really nasty if you happen to transfer some into your eye or get under the skin of your fingers as they can migrate under the skin's surface (not a good thing!). You can see the very tiny "whiskers" on the board in the video after you used the pen. Merry Christmas and Happy New Year! 73 - Dino KL0S

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Dino Papas Hi Dino, yes the fiberglass pen did the job. Yes you are right this pens are nasty I should wear gloves.. have a happy 2016 73 Peter

  • @rienvandervorm3032
    @rienvandervorm30328 жыл бұрын

    This is resly the only correct way to remove the acid from the capicitors, great job. one remark.....please use, and advice to use ESD protection during the job.. 73 Rien PA3GAG

  • @Werlaf

    @Werlaf

    8 жыл бұрын

    +Rien van der Vorm Hello Rien, absolutely correct, your remark regarding the ESD protection, but I know Peter personally, I´ve been many times in his lab and I know, that he wears the ESD protection every time on his right leg. He only forgot to mention it.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Rien van der Vorm Oh ja, good remark really forgot to mention it. I'm so familiar with using it that I often forget to talk about it. Werlaf gave the right answer on that already :-) 73 Peter

  • @nigelsookdeo6880
    @nigelsookdeo68805 жыл бұрын

    I recently got one minus the power cord which power cord do I use.

  • @SoulStarLA
    @SoulStarLA8 жыл бұрын

    What kind of sanding tool did you use in the final step to remove the remaining corrosion? Or did you somehow do it by gentle hand sanding?

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Joseph Gutwirth Hi Joseph, I was using a fibreglass pen for removing it. Thanks for watching 73

  • @user-fc7oc2vm1o
    @user-fc7oc2vm1o8 ай бұрын

    Most helpful, thank you! W7RKD

  • @harrybatt998
    @harrybatt9982 жыл бұрын

    Hi Peter, Excellent tutorial as always. I've recently picked up a TS-850S in superb condition, however, like per this video, it has leaking SMD Capacitor's on the carrier board. Can you please tell me the name of the tweezer dual soldering iron you have, as I would like to buy one to do this job? Many thanks, & keep up the good work.

  • @N1RKW
    @N1RKW8 жыл бұрын

    Very nicely done, sir! I'm glad you ended up replacing the bodged capacitor as well. Just one question: It appears that the replacement capacitors are 16v rated like the failed originals. Would it have been better to replace them with 25v capacitors to prevent this sort of damage from occurring again?

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +DainBramage Hi Dain, thanks for feed-back! Well I don't think that this caps were failing due to a voltage overload as we are only dealing with 5V on the PCB it is rather more a production error so 16V is more than okay. 73 Peter

  • @N1RKW

    @N1RKW

    8 жыл бұрын

    +TRXBench That makes sense. My mistake was assuming that it was a 13.8V circuit. I agree with you, 16V caps should be more than adequate for a 5V circuit, especially since you are using good quality replacements.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +DainBramage yeah good quality parts are key!

  • @bancadacia.492
    @bancadacia.4928 жыл бұрын

    perfeito!

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Technical Lab Thank you for comment! 73

  • @ham4ham71
    @ham4ham718 жыл бұрын

    Hi Peter great video. Do tantalum capacitors have this same issue with time?

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Ham4Ham Hi, I do not remember that I saw a leaking one but earlier production tantalum are going to short out and literally explode. I have seen that very often... Thanks for comment! 73

  • @GenerationAI2024
    @GenerationAI20248 жыл бұрын

    Hello and thanks for your vid. I was wondering if i take on this maintenance after im done is it a good idea to get the local board coated like the Vlt´s from Danfoss? Thanks again. Rene OZ5RS

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Coldoikz1 Hi, well I don't know this danfoss product but it is a good idea to coat it with a kind of electronic plastic spray. 73

  • @GenerationAI2024

    @GenerationAI2024

    8 жыл бұрын

    +TRXBench Thank you for your answer :) I hope im not asking for to much but i was wondering if you got some list of the capacitors with their values and such for sharing? Its just so i dont have my Kenwood standing open for too long. And again thank you for your help :) 73 OZ5RS

  • @franciscolopez3229
    @franciscolopez3229 Жыл бұрын

    May I ask sir, are you saying that it is expensive to maintain this radios?

  • @gbowne1
    @gbowne12 жыл бұрын

    I aleays liked the 850's and 940's VFO knob vs the one on the 756 or the FT-1000D or MP.

  • @rayk5uzz317
    @rayk5uzz3177 жыл бұрын

    can you do video on kenwood ts-930 preventing maintenance rx go out then tx shut off turn back on it's ok sometimes love yor video's i learn alot please help me lol

  • @dallasdorrington7449
    @dallasdorrington74496 жыл бұрын

    Hello Peter, thanks for the great video's you do. I know you mostly do HAM radio's but I myself repair 30+ year old 27mHz CB radio's. I live in Perth Western Australia and this kind of repair is a dying art form as most CB repairer's are in their 60's and are retired from the business of fixing these old radio's. I'm no longer a Ham radio operator and just do this type of work to keep myself busy. I'm not sure where you live but if you just happen to be on 27.355mHz 11 meter band on LSB you may just hear CB operators hear in Perth. My callsign is: 43-WA963. 73's and have a Merry Xmas. Dallas

  • @TRXLab

    @TRXLab

    6 жыл бұрын

    Hi Dallas, ah that is very interesting! Yeah the repairs in CB are going down as this radios are so cheap now unbelievable. Well here from Germany it will be very difficult to get good opening right over to Australia on 11m..All the best and Merry Xmas! 73

  • @adhibhirawa

    @adhibhirawa

    2 жыл бұрын

    @@TRXLab Peter, i had power issue on this radio, i have pulled out the digital board on the power supply, and when i checked out, i found that the voltage drop everytime i turn on the radio, from 13.8 and drop to 1,18 volt, what should i do then please tell me 🙏,thank you 🙏🙏🙏

  • @gerhardwiesinger
    @gerhardwiesinger4 жыл бұрын

    Nice. how did you remove the electrolytic? sand paper? Tantal capacitors would be a better replacement (e.g. 10uF, 35V for higher voltage margin)

  • @waynecarlson3736
    @waynecarlson37367 жыл бұрын

    Peter Outstanding repair pointers. Is there also a problem with the 940s?? Thank You

  • @TRXLab

    @TRXLab

    7 жыл бұрын

    Hi Wayne, well some 940s has Seen my lab as well 73

  • @gregwmanning
    @gregwmanningАй бұрын

    Thanks for this video, is it possible to clean the acid by putting board in an ultrasonic cleaning bath?

  • @TRXLab

    @TRXLab

    Ай бұрын

    Most likely not but I'm not chemist and don't know a cleaning supp to ultrasonic

  • @herbertsusmann986
    @herbertsusmann9868 жыл бұрын

    What about the display board? You said that has the same bad capacitors. Perhaps not all units have those caps on the display board? Did you check it and determine they were OK? Thanks for this video, great as always!

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Herbert Susmann Hi Herbert, yes but I didn't put all into this video as it is already to long. The basic procedure is the same and there is a lot of stuff in the internet.. Thanks for stopping by. 73

  • @herbertsusmann986

    @herbertsusmann986

    8 жыл бұрын

    OK, thanks for clarifying this. I figured you would have checked it also. Do you know what brand of capacitors those are? Sure hope they are not making those anymore!

  • @walterfalzon4547
    @walterfalzon45474 жыл бұрын

    Hi Sir, that's a great job you've done on this beauiful receiver!!! I was wondering if I could send my faulty Flex3000 to you. It's problem is that it powers up fine, but 'Powersdr does not recognise it, it keepos saying 'Device unavailable' . Please let me know, if this is viable. I reside in the UK. Thanks in advance. Walter.

  • @ozer3749
    @ozer37498 жыл бұрын

    Hi Peter, I just discovered that the Noise Blanker of my TS 850S is not doing its work? Any idea or recommendations on this issue? Thanks in advance for your earliest reply.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Özer Öztürk Hi Özer, well to many root causes possible... hard to answer on remote. Sorry for not having a better answer. 73

  • @ozer3749

    @ozer3749

    8 жыл бұрын

    Hi Peter. I was just brain storming... Thanks for your valuable reply.

  • @corverhoef8089
    @corverhoef80893 жыл бұрын

    Hello Peter, I have a kenwood ts940s now for a year, very nice rig nice audio etc etc, untill sundaymorning 1-3-2021 the radio was dead, no power nothing, u think it is the power supply?thanks 73 PD5CZB Cor from Holland

  • @georgebodley8068
    @georgebodley8068 Жыл бұрын

    Is there a better solution in terms of using electrolytic capacitors ie different capacitors ?

  • @TRXLab

    @TRXLab

    Жыл бұрын

    not really maybe in some cases tantalum..

  • @deviltube36
    @deviltube367 жыл бұрын

    I apologize if this is a stupid question. Does the TS850 SAT have the same problems. I am thinking of buying my first radio, a used TS850 SAT. Thank you for any info you could provide. Enjoy your videos.

  • @TRXLab

    @TRXLab

    7 жыл бұрын

    No reason to apologize. The TS 850 SAT has the exactly identical design so yes it may have the same problems. hope that helps 73

  • @DonDegidio
    @DonDegidio8 жыл бұрын

    Peter, Excellent video. I subscribed about half year ago and have finally watched all your videos. I have learned a few techniques I can put to use in trouble shooting equipment. Also learned much from Paul Carlson's channel. I see how it is sometimes difficult to work on equipment. I'm surprised the electronics industry does not have a chemical to stop the corrosion from the electrolyte in electrolytic capacitors. You now have me worried. I am starting back into amateur radio after being off the air for 30 years. I recently upgraded to General. I have a elderly (1980) Yaesu FT-901DM that I have not used for 30 years. Do you know of any problems that may occur with that vintage radio before I apply power?

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Donald D'Egidio Hi Donald, thanks you very much for the kind words! Well the question is if the industry really is interested in a chemical most likely they are more interested in selling new products. Oh yes be careful taking old gear back into service after a long perido. Watch my video Tutorial -How to take a Cobra back into service after 25 years- for more details.. 73

  • @DonDegidio

    @DonDegidio

    8 жыл бұрын

    +TRXBench Peter, Used the tutorial with the light bulbs and the FT901DM powers up. Receive functions seem to be OK, but when I try to transmit into dummy load I get no plate current meter reading and no PO meter reading. An external wattmeter does show power output. I do not have the equipment to perform any serious diagnostics. Don't know if I should spend any money getting it repaired. I have limited income and wish I could do it myself.

  • @TRXLab

    @TRXLab

    8 жыл бұрын

    +Donald D'Egidio Donald, put by some money and wait a while and buy something newer or new...All the best and 73's

  • @DonDegidio

    @DonDegidio

    8 жыл бұрын

    Peter, I have a Flex1500 that will be in use soon. Still collecting all the bits, but it is only 5 watts output. The 901DM was 100 watts. My triband beam is old and needs maintenance. Don't have any other antenna now. I have a ZS6BKW (G5RV variant) multi-band dipole to install, but I need help because of low back pain. I will eventually get it up and back on the air. :-)

  • @hcanger4862
    @hcanger48626 жыл бұрын

    Hi Peter! I got here "nice" issue in my TS850S....need to say I'm desperate a bit with that... How to contact with You? Congrats for your work with videos here...AWESOME! 73!

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