Yaesu FT-840 radio in for some minor repairs and alignment.

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  • Опубліковано 30 лис 2018
  • To help support this channel donations can be made at. / mikesradiorepair or through PayPal at paypal.me/MikesRadioRepair

КОМЕНТАРІ • 54

  • @lwoodt1
    @lwoodt1 5 років тому +1

    I don't understand any of this stuff but I enjoy watching Mike fix them.

  • @TheRadioShop
    @TheRadioShop 5 років тому +5

    Great tip on changing those resistors out This is the things folks need to know. Thanks for sharing that.

  • @624radicalham
    @624radicalham 5 років тому +1

    6:01 excellent advice on how to grab these types of cables so as not to break them. They are very common inside of HAM radios. Invaluable information on every video Mike.

  • @DonDegidio
    @DonDegidio 5 років тому +1

    Hi Mike,
    Glad to see you back making videos. It has been several months since the last. Excellent tip with the resistor size. Great warning about how to grab those TMP connectors. 73 WB3BJU

  • @samiam5557
    @samiam5557 5 років тому

    glad to see your BACK!

  • @TomTomIAm
    @TomTomIAm 3 роки тому

    I like the incandescent bulb and replaced with the same type just a week ago. Keep the videos coming :)

  • @ado75
    @ado75 5 років тому

    I successfully did the R2231 resistor mod (in-situ) last year. But its really great to see how to approach taking the whole board up and navigate around. Really handy should I need to go back in :)
    Many thanks. 73

  • @paratrooper202
    @paratrooper202 5 років тому

    Radio is top shelf Mike THANKS!

  • @9291wolfman
    @9291wolfman 5 років тому

    Hello Mike I know it is the holiday season and all but I sent you an email in regards to repairing one of my Yaesu ft-101’s. Nice to see you’re videos after that long break

  • @W-733_KWX
    @W-733_KWX 5 років тому

    Cute radio ; lots of good advice, thanks Mike ; If i lived next to you and not in Europe, you'd be my repair guy :)
    Thanks for taking the time to make this video.
    Just subscribed by the way !

  • @electron0002
    @electron0002 5 років тому

    boil it.rubber and will shrink back glad to see you back

  • @francismcclaughry3794
    @francismcclaughry3794 Рік тому

    nice looking radio and i agree with you.

  • @kennynvake4hve584
    @kennynvake4hve584 5 років тому +2

    I have also divided the resistance between two resistors to make them cooler.

  • @kirbyjeffery4773
    @kirbyjeffery4773 5 років тому

    Love watching your videos Mike hope to see more soon I can never get enough I like the way you break it down so everyone can understand it even the novice radio enthusiast can understand great work keep it up KD8RR0 Kirby have a great day

  • @AlfOfAllTrades
    @AlfOfAllTrades 5 років тому

    Been wondering what you were up to. Hope all is well, and that more videos are coming :)

  • @whitefordpipeshandmadebymi7238
    @whitefordpipeshandmadebymi7238 4 роки тому

    Cool stuff! Take care! 73 de ve3hip in Welland Ontario Canada 🇨🇦

  • @kennynvake4hve584
    @kennynvake4hve584 5 років тому

    I had to do just that...put a heat sink on a resistor, like the one in the video..the 8.2 ohm. I opened the fins on an old heat sink and pushed the resistor into the fins to get it to cool down some..they get really hot..

  • @arunaspaulionis8350
    @arunaspaulionis8350 5 років тому

    Thanks

  • @jeromegrzelak8236
    @jeromegrzelak8236 5 років тому +1

    This guy can talk

  • @Ralphs-House
    @Ralphs-House 2 роки тому

    Love watching your videos Mike. Also think you have a potential part-time job as an Alan Alda (MASH) impersonator!

  • @jameslane2667
    @jameslane2667 5 років тому

    🙌💤💤💤💤💪🇺🇸 nice-looking yaesu mic excellent review 11 m is opened up a little today talk to Delaware talk to Texas and Pennsylvania

  • @jonathanramirez4468
    @jonathanramirez4468 2 роки тому

    Excelente manual donde lo consigo

  • @DAVIDGREGORYKERR
    @DAVIDGREGORYKERR 5 років тому

    What about Technics Electrolytic capacitors to replace the old electrolytics, if you want a better radio then why get a FLEX 5000C add-ons can be added by compiling the required source code into the required module.dll in the dll directory.

  • @Martin15068
    @Martin15068 7 місяців тому

    Hi, can you tell me what kind of led you did use and which resistor to get this lighning. My lamp has given up and i would change to led
    73

  • @fatboymotorsport
    @fatboymotorsport 3 роки тому

    Hi my Dad has a FT840 with the stuck S meter issue but also the display backlight is out, would the resistor you mention cause these issues if it was to fail and bring down one of the voltage regulators, Radio seems to work ok apart for that thanks

  • @oldnormanbates
    @oldnormanbates 5 років тому +1

    What's the Model number of the 'Radio Communication Test Set' that I have seen you use in many of your alignment videos. Very nice for testing SINAD Alignment,but I'm not really familiar looking at it who the Manufacturer and Model #.. Doesn't have a HP Tek or Agilent look,nor SAGE. Thanks for your great work and I have been able to learn more about CB tuning.

    • @mikesradiorepair
      @mikesradiorepair  5 років тому +1

      I don't think I panned the camera past a communications test set in this video. I own several from several manufacturers. I have 6 Rohde & Schwarz's, 2 IFR's, 4 Schlumberger Solartron's, a Marconi and HP.

    • @jonathan-emilypowell1962
      @jonathan-emilypowell1962 5 років тому

      💰 💸 💸

  • @mikeberger1688
    @mikeberger1688 9 місяців тому

    Does the S0239 coax jack tighten from the inside or that nut on the outside? Mine is loose and can't budge the outside nut so maybe it's part of the jack itself? -- many thanks

  • @vu3mkhvu3mkh97
    @vu3mkhvu3mkh97 4 роки тому

    Hi ! I'am having this rig and need to open the front panel for repairs. The MODE / VFO MR and such buttons are not working properly. Can you please share with me how to open the front panel of this YAESU FT 747 GX. Thanks.

  • @PapasDino
    @PapasDino 5 років тому +1

    Mike - how do you clean the rubber ring?

  • @jameslane2667
    @jameslane2667 5 років тому

    2USA 465. 27 3850. Thru. 27675 0 LSB. Maybe sometime I'll get that talk to you on the channel mostly 38 lower side band

  • @613nwct
    @613nwct 4 роки тому +1

    How do I get a hold of you for sending something in for repairs???

  • @knowles217
    @knowles217 5 років тому

    if this radio was my I would let you do it the caps mike no doubt

  • @theodoreclennon1020
    @theodoreclennon1020 3 роки тому

    Where do I get a refurbished, 840?

  • @brianshanahan3878
    @brianshanahan3878 3 роки тому

    How much was the cost of these repairs? Just curious as I might get one of these and send it to you for repairs like this.

  • @scotreece5795
    @scotreece5795 4 роки тому

    I have a ft840 your video is very helpful. By the way just subscribed today. How can I get in touch with you about repairs. Keep up the good work.73s KN4CBS

  • @STACKHOUSE25ify
    @STACKHOUSE25ify 2 роки тому

    hello, how do I get this service manual, I really need a very readable one.

  • @francismcclaughry3794
    @francismcclaughry3794 Рік тому

    i will never fix radios, but I have learned a lot about them. what about a 7300 ham . could you work on it?

  • @bblod4896
    @bblod4896 5 років тому

    If a transceiver was operated in a home environment that was air-conditioned and the radio was not used everyday, wouldn't the capacitors tend to last longer than twenty years, especially if quality capacitors were originally installed?

  • @masterpainter12
    @masterpainter12 5 років тому

    MIKE, I HAVE A QUESTION I WONDER IF YOU COULD HELP WITH. I HAVE A BAD J2026 SOCKET THAT THE REGULATORS PLUG INTO. CAN YOU TELL ME HOW I GET A REPLACEMENT SOCKET.

  • @George_S.G
    @George_S.G 5 років тому

    hello , how can i get in contact with you ?

  • @thesavo
    @thesavo Рік тому

    Where do you source the chernobyl Resisor and the surrounding capacitors.? My board is burnt all around that known bad resistor.

    • @mikesradiorepair
      @mikesradiorepair  Рік тому

      Any electronics component supplier. Newark, Mouser, DigiKey and dozens if not hundreds of others.

    • @thesavo
      @thesavo Рік тому

      @@mikesradiorepair OK. I was concerned that there was a tolerance or some other un specified value that I wouldn't have other than voltage and capacity.

    • @thesavo
      @thesavo Рік тому

      @@mikesradiorepair I am attempting to gather these parts to do this repair. I found NA8Y’s post and plan to order his recommended resistor. Part# PWR221T-30-8R20F. Sorry for what may be a basic question. I have replaced motherboard caps before, however it was with pre-made kits. Sourcing these on your own is a bit daunting. I am going to order a suitable resistor from Mouser and wanted to add those capacitors to the order. . However the C2034/C2035 near the resistor and the voltage regulators are a little difficult. Would you happen to know the lead spacing (or if it matters) for those 16v,10Micro Farad capacitors? Yaesu has a part number of K46120004 and a description of 16V100M4X7TR2. I was not able to pull up a spec sheet. Searching for those only pulls up other yaesu radio service manuals. I was planning to do all this in one session since I am not able to pull the board, de-solder the caps to measure their spacing, then re assemble to prevent losing parts. If you happened to know what you used or if it mattered, it would be beneficial.

  • @Anthony89PR
    @Anthony89PR 4 роки тому

    Hi Mike, I had a ft-840 with some issues and I'm in Puerto Rico. Down here we don't have any shops that can help me get it work properly. Can you help me ? If yes how can a contract you. 73' form WP4NRC Anthony!

  • @ae4xo
    @ae4xo 2 роки тому

    i had to send mine back to yaesu due to the caps

  • @thunder145
    @thunder145 Рік тому

    Hi! where i find only "condom"? 🙂 i need this piece...

  • @francismcclaughry3794
    @francismcclaughry3794 Рік тому

    I don't know why I ever went icom.

  • @asherdie
    @asherdie 4 роки тому

    I see HAMs constantly commenting, "get a real radio, not an export cb blah blah blah..." they sure look a lot alike inside.