#28 Yaesu YO 100 scope monitor troubleshoot and repair

[@binarybox.binarybox]

Nice repair and a useful tip from Paul on identifying the outer foil on non-polarised caps.Thanks and 73.

[@TheRadioShop]

Thanks for the comments.

[@PapasDino]

Talk about using your senses as simple test gear, we had a cable TV tech here last week to troubleshoot a foreign voltage noted on our coax feed. He started at the closest pedestal and used his "DMF" or as I called it his "Digital Multi Finger" to see if there was a 90V level on the coax that wasn't supposed to be there; I told him I knew CPR just in case. Luckily he didn't start doing the "funky chicken" when he held the coax connector's ground ferrule between his fingers and touched the center conductor with his index finger. Great easy fix Buddy, thanks for sharing! 73 - Dino KL0S

[@TheRadioShop]

+Dino Papas Ha ah, that surely will light up your life. I got hit with 1100 hundred volts before. I learned how to do the funky chicken then. Also learned a lot of respect for high voltage. Thanks for sharing that story Dino. It reminds you to put safety first. And as always thanks for your comment.

[@MrCarlsonsLab]

Thanks for the kind words Buddy..... Always appreciated! Great job on the scope, I have 2 of those, and like them very much. I agree, the best piece of test gear we own is right between our ears!

[@TheRadioShop]

+Mr Carlson's Lab Paul, It is a real honor to have you stop by my little channel. And no problem I reference you and Peter many times on different web sites. You guys are the best. And yes, I love test equipment but when you the one between your ears it gives you a good feeling. Thanks for commenting my friend.

[@mikesamra9126]

+The Radio Shop excellent video. I usually change all the Japanese oil caps out as they are not the quality of the Sprague Vitamin Q or the Russian K40y paper in oil caps.

[@froggyjumper1709]

Buddy, I have the same YO-100 that I turned on after 2 years of sitting. Made 3 snaps. Fuse, and both resistors on that same terminal strip, so evidently the same problem. I'll do a complete recap as I need it for my old Drake equipment. Thanks for pin pointing where on the schematic to find these resistors as occasionally I it bit difficult for a non electronics tech to pin point issues other than using your senses as you describe, along with voltage checks etc. Thanks for saving me time. Cheers.

[@fey4949]

Nice repair. Not only look to the result, smoked resistor, but also looked for the course, shorted capacitor. This is not always easy! Good job look forward to some more.

[@TheRadioShop]

+FEY Thanks very much FEY. This was a very easy fix. The way I like them. What you saw on the video is what I saw at the time :) Thanks for watching and many more to come.

[@TRXLab]

Great repair and video Buddy! A nice monitor in good shape worth to fix! Thanks for linking my channel my friend. See you 73

[@TheRadioShop]

+TRXBench Peter, thanks for the comment. Also good to see you, was starting to worry my friend. BTW, It is snowing here lol. Thanks for stopping by Peter. You and Paul has taught me a lot so only right to mention.

[@TRXLab]

+The Radio Shop Hi Buddy, no worry only on business trip.. Take care

[@TheRadioShop]

Good deal Peter, Oh, wait till you see Paul's latest video. It is awesome! Take care my friend.

[@Beretta96Dan]

Enjoyed the repair video. Very good camera work. Thanks!

[@TheRadioShop]

+Beretta96Dan Thanks very much for the comment. Out of the 28 videos I have made you are the second that has left feedback about the camera work. That is most appreciated. I consider myself as a noob when it comes to video work and editing. Still work in progress. One day I hope to get better cameras and audio equipment to make nicer videos. (Hint to all the manufacture companies ;) ).Thanks again for the nice words.

[@johncunningham5435]

Yes! I agree with you and Paul; our senses are the best guide in tracking a problem that often speed up repairs, test equipment on the other hand is an extension into more precise troubleshooting. There is an old saying, the test equipment is as good as the operator. A good understanding on how electronic parts work will make you much more efficient when it comes to resolving issues.

[@TheRadioShop]

+John Cunningham Totally agree John

[@pierrelataillade7564]

Very informative and down to earth. I personally like the way you simply your craft. Thanks for sharing.

[@TheRadioShop]

Thank you very much.

[@N1RKW]

Good job on the repair. You're absolutely correct about using your senses.

[@TheRadioShop]

+N1RKW Thank you very much for that nice comment.

[@andyg8966]

Nice job buddy, I love old test gear. They don't normally give up they're secrets that easily.

[@TheRadioShop]

+Andy Gallacher Hi Andy, I do also. Got lucky with this one, I threaten it and it squealed like a pig and gave it all up. :) Wish they all were this easy. Thanks for stopping in.

[@joereeser3810]

Great video and troubleshooting. Thank You!

[@jaybats7865]

I enjoy your videos so much, thanks for bringing us along 👍

[@TheDisorderly1]

Nice repair! Thanks for posting this for us.

[@TheRadioShop]

+TheDisorderly1 You are very welcome. Thanks for watching :)

[@OrbiterElectronics]

Good job again Buddy, always great to see a successful repair. Cheers friend John

[@TheRadioShop]

+orbiter8 (John) Thanks John, always a pleasure to see you my friend. I am starting to like the easy ones :)

[@OrbiterElectronics]

+The Radio Shop .. Heheee.. Yea, give me straight forward repair any day, as the ones that last for days, or even longer give me severe brain ache :) Cheers friend John

[@TheRadioShop]

+orbiter8 (John) That's the truth my brother.

[@radioham2387]

thank you Sir great video nice to see something nice and simple for a change thanks again

[@TheRadioShop]

+Radio Ham And thank you for watching. It is nice to get something that can be fixed this easily.

[@supyrow]

Nice work! great little scope!

[@TheRadioShop]

+su pyrow Thanks, I agree, I like to have this one for myself. I actually like it better than my Kenwood unit. And easy to work on. Thanks for commenting,

[@grantfullen9559]

Nice repair.

[@TheRadioShop]

+Grant Fullen Thanks grant. BTW, I sent you a reply to the private message. You get it? I did not see it till 4 days later. YT is not sending me notifications.

[@radiobigman47]

good job on the fix

[@TheRadioShop]

+kc9kuh Thanks for the kind words.

[@g1fsh]

Thanks for another great video buddy. I agree that many problems can be found with just a multimeter and your eyes, sense of smell and by touch. But it is nice to have the test gear I myself love collecting it LOL Thats great advice about checking out those other channels I follow all of them and they are great channels very informative and full of great videos. as well as your own this one is a great channel.

[@TheRadioShop]

+Gary g1fsh Thanks very much Gary. I agree, I love test gear :) Cant get enough of it.Also thanks for the kind words, much appreciated my friend.

[@dennisqwertyuiop]

I need a Coaxial Attenuator for to connect transmitter to spectrum analyzer most power is 50 watts, I see a 150 watt at 40 db and a 30 db what would you get a 30 or 40 thanks

[@TheRadioShop]

+DENNIS N Hi Dennis, I think it may have been you that asked about that earlier. If so thanks for the reminder. Will see what I can come up with. Should not be very hard at all to do.

[@dennisqwertyuiop]

Want to buy one not making it , thank you for speedy reply

[@rkeith2]

I have been watching and enjoying your videos and like your troubleshooting techniques. I have been working on radios for 40 plus years and still get stumped a bit and of course I like the rapid satisfaction of having the parts quick and not waiting or having to search for a long time. I need more patience :) I actually wanted to ask you about the turntable you have built that swivels. That would sure make the IFRs and Yaesus a lot easier and I am also jealous and interested in the microscope you use. Any info you can share would be appreciated Sir and thx. Ron Keith 73s AK6Z

[@TheRadioShop]

+Ron Keith Well thank you Ron for the kind words and for following my video series. Much appreciated. Lets see, turntable. I was at a flea market one day and laying on a tarp a vender had I saw this round doughnut looking ring. It measured 12 inches in diameter and has a 6 in hole in the center. The whole unit is less than a half inch thick. I knew then what I could do with it so asked the guy how much. He said one buck. Took it home found a laminated board from a tore down cabinet and bolted in on. Been using it since 2000. I think the bearing ring came from a tv set. Also some cheap office chairs have something similar.The microscope I use is a usb style. It is called the Dino-lite premier. About 250 bucks now. I wish I had purchase a trinocular microscope but were expensive at the time. Hope this helps Ron.

[@dennisqwertyuiop]

good job

[@TheRadioShop]

+DENNIS N Thanks Dennis

[@andyg8966]

I still use my Vintage test gear wherever possible, my favourite signal generator is an old Avo valve job from the fifties & is still spot on frequency. Wherever possible I still use my old Avo 8 as well. Think it's an age thing Lol, maybe I should have been born in the 40's.

[@TheRadioShop]

+Andy Gallacher Good deal on the AVO vintage gear. I always love old stuff and love hearing about them. Thanks for posting.

[@Team-fabulous]

Mine hasn't been used in a few years. Turned it on today, worked great for about an hour then made a sizzling noise from within and the display went very dimb before I reached for the off switch😮😮

[@MegaBuckfast]

On my YO-100 , R19 (100K 1W) was bad. Replacing this restored the shortened sweep.

[@thomasjacobs3604]

Viewers should realize it was a 15K and 47K ohm resistor that was burnt on the terminal strip. . Referring to the schematic, one can see that a 47K and 15K are on the terminal strip and the additional 47K that Buddy referenced was on the PC card. Hence he mistakenly replaced the 15K with a 47K. Glad it still worked.

[@maninthevan53]

true words .

[@TheRadioShop]

+danny blackhorse Thanks Danny.