Dynacord DDL 12 digital effects repair

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.

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!

Sony WM60 Walkman

sir thank you very nice

I have repaired quite a few devices, and often, you can see the wires in the fuses move when turning on the power. But if they light up, I would replace them with slightly higher rated ones, even if they are slow-blow fuses.

Hi Mark. Is it ok to replace a tantalum capacitor to a electrolitic one? Greetings from Brazil.

those flat toggles remind me of my early days as a musician in in the late 80s early 90s!

Great video and awesome repair! Quick tip: the tang on those pots can be easily removed with side cutters, they are quite brittle and come off pretty clean

great stuff, watching all your videos, Mark you should be on TV. entertaining, educational and very interesting, thankyou for your hard work. ay it

Thanks for another great video Mark. I'm pleased that I found your channel.

This sounds bit like something Deala Derbyshire would like. She called that sound a being made by a wobulator..

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

thanks for sharing. saludos desde Mexico

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👍

Can you not just reverse the outer wires on a +ve taper pot to make it behave like a -ve taper?

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.

Mark you are super cool to watch

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.

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?

I've had many issues with old ROE capacitors and that unit is full of them!

More shorts than a Wham! video.

Excellent Mark. Love the Channel and your expertise. Brilliant.

I love you approach to diagnostics and am happy to have found your channel.

Beautiful video, thank you 👍😊

Nice one Young Mark!! (1982! You weren't born!! ha ha!)

Love your videos, keep it up!

Roe and Frako caps are very poor

super great job !

Dynacord is excellent gear.

Sir goodevening. I am philipino good work sir.

Hi Mark, I'm a new subscriber...you're videos are Awesome!!! By chance are you familiar with the common "no input signal" with the Lexicon MX200 effects processor? If so, could you please share the fix?

You have massive equipments library

Like A Job In The Town 👍

Танталовые конденсаторы заменил обычными алюминиевыми? Жди, через неделю опять принесут на ремонт со взорванными электролитами!

I have dynacord gigant 3 amp from bouts the same era excellent gear back then

Bloody tantalums. Bane of my existence.

Excellent work, but I saw that +15V fuse pop at the end of the video....

I thought I had learned some English during these years, but it seems not. I don't understand a single word he says..

First time seeing this channel and holy shit this guy is just so charming and has a gorgeous smile. lmao

I watch your channel for hours!

Subscribed

Excellent work, as usual. You make it look so easy.

I don't recall ever reading about a failure mode of a capacitor as being "knackered".

The troubleshooting, and cap replacements you found, will fix a huge amount of old gear which has failed. My test gear is very similar to yours and I picked up most of it very cheaply due to it not working. Dozens of tantalum caps later and I have all working gear. Let me know if you are ever in the Boston area or if you are going to the Dayton flea market, it would be fun to get together.

Roederstein Capacitors of course, they are mostly dead after 30 years :-)

I always suspect caps

Nie mógłbym pracować przy tak brudnych płytach czy innych komponentach bez wcześniejszego czyszczenia...

I just came across to your channel. I find it very interesting and liked it. You are joyful, confident, know what to do and how to do. Keep it up Mark