I found Mark whilst searching for some info of how to repair my Sony RCD-W100 CD player. His exploits in the world of repairing all sorts of audio equipment really is quite captivating. Never have I seen such electronic expertise demonstrated in such a charismatic way. Just amazing!! Thank you Mark.
I had the crappiest day I've had in a long time at work today. Just binged about 4 episodes and laughed my butt off while putting the finishing touches on my Trio TW-61. Thankyou sir!
Well done Sir. I would definitely have changed out those regulators and smoother caps because they've clearly been under extreme load due to the tantalums. The fuses did flash perhaps they need to be a surge tolerant type. I love this older gear its what I was raised on and so nicely built. I design a lot of my own stuff and I still build it through-hole in the same way and avoid SMD.... It's proven to be such reliable technology
Those Roederstein caps always seemed to failed short! And the brown plastic ones don't usually fair much better, as anyone who's worked on vintage B&O equipment will know. Glad you blanket replaced the crucial ones!
I recently restored a Dynacord GIGANT amplifier from 1969. It was a total nightmare. 79 capacitors, several resistors and transistors, new tubes, some bad pots, and so much more. After three months it's finally restored to all it's glory.
18:04 Mark, I think you just composed the next science-fiction movie theme! I think this unit has had a rough life in some studio somewhere. Great video as usual mate, thank you!
Great video. I really enjoy your jolly, good nature, chuckling at every challenge. You set a fine example for me. I tend to get a bit grumpy when encountering setbacks. You've given me renewed vigor to tackle a troublesome effects unit I've left lie for a bit. Subscribed!
I have a few of the old Dynacord delay units for speaker delay. The battery dies and can leak. Think i replaced a few other things, a cap blew too i think, after years of no use. I didn't have the correct battery and needed it the next day. I had old lithium batteries that look like AA much bigger backup batteries. I couldn't solder to them so had to modify a battery cage and fit the larger battery that way. Pulled off a mini festival in a circus tent. very cool.
Fantastic channel. Really fun seeing how you repair stuff. Love how informative it is. Getting this wholesome feeling as well. How you don't have 50 X more subs is beyond me. Keep up the amazing work! :)
Hey Mark, thanks for your channel. The most thing I like you is your smiling, happy face. Most of the electric and electronics professionals will have wrinkled forehead and tension (more over filled with ego). I really feel so happy till the end of your videos. Ohh BTW what is that foam spray that you used to clean the exteriors?
It's videos like these that further fuels my desire to continue to learn how things work as well as my beliefs of "why buy it when you can build it" and "why replace it when you can fix it". Great videos, please keep them coming!
sounds like a bbc sounds affect tape/record i was waiting for the doctor to appear or a darek to bust through the door screaming exterminate😆. it amazes me how a spent cap can cause them kind of problems another excellent video mark
You know I love how you fix it and then you notice some other problems with the potentiometers and capacitors and you decide to fix them too. Some repair text might say, oh I got it working and fixed its main problem and that's good enough, not you you make sure it works how it's supposed to work.
always impressed with your knowledge of what to do - how did you acquire such learning Mark - if I may ask. It's a pleasure watching how you diagnose and repair these pieces of equipment. Loved it when you connected the speaker - it sounded like the beginning of a Hawkwind album - awesome!
When I was still training, like in 1977, I used to maintain stuff on Ferries, fromrRadar, radios and to teletennis machines. I remember the size of the boards in them, about 2 feet by 18 inches, SRBP boards, which used to warp because they were crap, absolutely packed with 74xx chips, literally hundreds of them.
The inrush current looks quite close to breaking those fuses looking at the glow - even after replacing some old components. I guess its common for old components to draw more current than when they were new. I wouldn't be surprised if those fuses blow again after a few power cycles, especially is the unit is used in a warm rack.
Good repair vid :) Just curious.. Do you buy these professional grade, Rack mount equipment, and then keep it as a hobby? Or just to repair and sell on? I am getting more into the professional grade power amps, Mixers etc, Buying them faulty, fixing them and then keeping them :) So far ive got a Peavey Cs1000 amp, A Warrior SB-500 Amp (old style Warrior, back when it was decent built stuff), I picked up a pair of PA 12" speakers off facebook, which happened to have a set of Eminence drivers :) Also picked up a Behringer DJX400 Mixer for pennies, just needed a connector cleaning haha.. Im new to repairing electronics, But im learning quickly :) Im also from the UK, Cambridge area :) Extremely pointless having massive power amps and big speakers, Can never "stretch their legs", But i find it fun to repair and keep em :)
Brilliant repair! I did wonder about the 'hot' tants near the start, they were showing as 34 and 28C on the Flir, not a huge temperature I would have thought? It's one problem with the auto-ranging on these meters that things appear 'white hot' when they're just the warmest thing in shot.
I love the videos Mark, I look forward to new ones being made. Really enjoyed this one in particular, it's a really nice old delay, I'm so happy you got it fixed. It's pretty rare here in the US and quite pricey! Keep up the good work! Thank you Rb
Hi Mark… I am a follower of your videos from Canada. Excellent work! … just occurred to me that I have an “vintage” Sony cassete deck TC 165 that needs attention… I know it’s not worth much, but sentimental value has no price…. Could be a nice piece for one of your videos, no? 😃 … anyway, congratulations and hoping for the next one!
Ok, so you didn't do a full re-cap(?) Understandable due to the cost involved. But still comes across as a "as you were" type of repair and service. Sorry Mark. 8 out of 10. Nina. ❤️❤️❤️❌️❌️❌️😏😏😏😏😏😏
7:42 "Black screws on a black surface" That is what Zaphod Beeblebrox said when he was in Hot Black Desiato's stuntship. "You press a black button and a black light turns on ...." Hitchhikers Guide to the Galaxy 😊
😆 2:21 STILL have mine Sinclair Spectrum! 😂 I have it in 1985! ans still the software on cassette tapes and some books and wrote the software lines, and one dot missing and its not working ore stops at that moment. also have then original tapedeck for that. pfffff..... 38 years ago, where is my time goes? 😊
Hi ! I'm not sure you will like both of my comments, but I'm doing it for improving listeners experience, not for bashing, believe me. 1. Your a very competent technician. If I had a repair shop in your country (Canada), I would employ you in full confidence and would pay you at a just salary ! 2. My ears are 'bleeding' each and every time I watch your videos. So, if you value your audience, PLEASE get rid of this horrible microphone and compressor. Put it on a track, watch the next train crunching it, laugh and take the debris to the recycling facility. I promise you a better next day. :-) I know you could afford a Neumann U87 plugged in a Midas console, but you don't need to go that far. Any mike costing around 100 $ or more and a just decent compressor, will do a great job, as long as you don't compress in a crazy way like I ear. After all, your an audio equipment repair technician, right ? So, giving the example, will certainly make your audience more happy, not just me. Have a nice day and continue to improve our competences, I like to learn new trick and make better jobs.
The two types of "crapacitor" I hate the most - ROE and tantalum. All ROE caps are replaced on sight. Bang and Olufsen hi-fi liked to use them in their audio equipment. Some receivers have dozens of them. Tantalums I refer to as 'hand grenades' because you never know when one will go BANG!
Old school for me I had change 15 leaky electrolytic capacitors for my 90s 1 pre-amp tube compressor/limiter and luckily I cleaned the board and it's fixed and it's about the 6th time I've turned it on since I've never used it. I like it more that I fixed it!
Mine too. I call them hand grenades because they are notorious for going BANG! just when you don't expect it. Either that or they go dead short as these ones did.
Great work, I love to see older audio gear being salvaged. However, butanone is a known skin irritant, as well as being flammable, and shouldn't be handled with bare hands.
Sad to see you didn't have proper axial electrolytic capacitor for replacement. This type of gear usually is on the road and sees a lot of vibration so there's a reason the manufacturer strapped them down with zip ties...
What he spray on there to clean the faceplate? I’m watching with captions at a slower speed, and I nearly crapped in my pants because it looked like oven cleaner! Lol
I must admit to a grudging admiration for your "let's push some joules into this & see what glows" approach when faced with a short. I work a lot on revox gear, & this wouldn't work- before you found the duff cap buried in the middle of an audio card, you'd fry off the delicate tracks on the PCBs. I always think revox boards look like they were made by a talented but highly strung silkworm.
Flavio, laat je gasten nou eens uitpraten. Je tettert er steeds doorheen waardoor zij van hun apropos afraken. De andere presentatoren laten de gasten wel uitpraten.
