My First Service! Pioneer SX-650

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Back in March of 2024 someone purchased a receiver that I had restored. Shortly after they received it, they messaged me to let me know how much they were enjoying listening to vinyl with their grandson and that brought me a lot of joy. They then asked if I could work on their Pioneer SX 650 stereo receiver that was having issues with the phono section and all of the lamps were out. I want to start offering more services but my time is limited so I said it might take me a couple of months but I'd love to work on it!
I deep cleaned it, replaced some faulty components, fixed any issues I came across, replaced the lamps, and lubricated the controls. It now runs perfectly and this videos shows how I got it there.
If you have interest in me working on your equipment, shoot me an email (shuksanaudio@gmail.com) with the brand, model, issues, and any other requests for restoration (Wood veneer, lamps, upgrades, etc). As of May 2024, my minimum service charge is $300+ shipping.
Chapters:
00:00 Intro & Background info
00:36 Throwback to opening the box
01:33 First Test
02:49 Exterior cleaning
03:21 Cleaning the faceplate & knobs
04:16 Installing LEDs
06:27 Cleaning the Crackly Controls
08:33 Hearing back from Randy
08:48 Electricity Warning
09:15 Testing Power Supply & Amp Voltages
09:42 Recapping the Phono stage
11:35 Burnishing Ground Connections
11:43 Recapping the Power Supply & Main Amp
13:39 Servicing the Pre Amp
14:35 Final testing of all inputs
15:01 Gluing the Knob Inserts
15:43 Final Assembly & Closing thoughts
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My name is Matt. I live in Washington State and create content around vintage stereos and other audio equipment. I approach the hobby from a technical standpoint and am learning about circuit design and reparing and calibrating amps, turntables, speakers, etc. I really appreciate a good aesthetic and the vintage stuff fits my taste.
Instagram: @Shuksanaudio
Tik Tok: @Thedealydeal

Опубликовано:

28 июн 2024

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Комментарии : 35

@MattDealy Месяц назад

Thanks so much for watching! If you are interested in sending your receiver/amp in for service, send me an email with the make, model, issues with it, what you would like done, and any other upgrades etc. My email address is located in the "about" section of the channel. I currently have a $300 service minimum as I don't have a ton of time to work on services at the moment but I want to do it more in the future! I'm still learning how to fix turntables, cassette decks, reel to reels, and other such source devices so I am not offering repairs on them currently. If you enjoyed this video, please like it and share it as it helps me immensely. Cheers 🍻

@jimcabezola3051 Месяц назад

Wow! A reverse RIAA filter! What a brilliant idea I'd never heard of! You could test the Phono section without needing a phonograph and some LPs! Absolute aces! 👍 I rarely see folks actually sand back and clean the grounds in a piece of audio equipment; that made ME feel good not to mention quiet down any funky ground noise. Another really enjoyable restoration! Aloha!

@MattDealy Месяц назад

@@jimcabezola3051 yes! It’s so useful. Definitely a worthwhile purchase. Allows you to send clean square waves through the phone stage and make sure they come out clean. Yes! Cleaning the ground connections is so simple and very worthwhile. Glad you liked the video! I appreciate you coming back and commenting on each one, Jim 🙏

@mobitie Месяц назад

@mattdealy I think U could or should charge a lot more. Proper real repairs like this should cost way more. Like $500+. Your saving real history and your skills are valuable. Hint... watch some @Mend It Mark too. Very skilled at fixing stuff to, and the restore part 😊

@christopherduncan4033 9 часов назад

Bro!! Matt, you are a supreme throwback of customer service. Excellent and thorough job with display and explanations. Thank you.

@davidperson777 Месяц назад

Great work. I once owed an SX-580 that I purchased in Japan while in the service back in the late 70's. I envy your level of knowledge. I can build a bicycle wheel, but electronic repair eludes me.

@MattDealy 28 дней назад

Nice! That's a great little receiver! I'm glad you enjoyed it, I love a good bicycle wheel build myself. Do you road bike or mountain bike?

@peterwikvist2433 Месяц назад

Great video Matt. Mistakes is how we learn. Thank you for sharing.

@MattDealy Месяц назад

Absolutely! Thank you for watching :)

@BradCody-tl5cf Месяц назад

Matt, you are off to a great start. I’ve been restoring vintage audio for over 10 years. You are very detailed in your work. The most enjoyable part of this job is to bring a failing piece back to life. Also, you’ll get to play with and briefly use really cool equipment. The only red flag with the sx-650 are the stk packs. I try to avoid any amps or receivers that have them because if they’re bad, replacement is near impossible.

@MattDealy Месяц назад

Thanks so much! So cool that you've been doing it for so long! Haha yes! It's fun to tinker with a new piece of gear for a bit and not have to deal with storing it haha. Yess I did notice the STK packs and was surprised. I thought they didn't use them until the xx80 series. Thanks for watching and for your kind words ❤️

@felixlutticken5694 Месяц назад

I also fixed two turntables from a guy that bought my CD changer. I'm a student and that was a good way to make some additional money 😁

@MattDealy Месяц назад

Nice! That's so cool! It's a fun way to tinker with gear and make some side cash. Thank you for watching!

@jpweatherly Месяц назад

My old man had this model Pioneer in his living room for 30+ years. 🤙🏻

@MattDealy Месяц назад

Amazing! I bet there are some good memories with it. Thanks for watching!

@hitmanshivam3889 Месяц назад

Just found out your channel man and already love your enthusiasm for your work and I remember working on a old crt tv and Panasonic boombox/radio with my grandfather and the wiring and everything else reminded me a lot of those times and +1 sub and love from India 🙌

@MattDealy Месяц назад

That's amazing! Thank you so much for sharing and for watching! Boombox repair with dad sounds like a good time :)

@hitmanshivam3889 Месяц назад

@@MattDealy grandfather/gandpa not sad but yes probably the best memories from childhood

@MattDealy Месяц назад

My bad! Either way, it sounds like a good time. The older generation usually has so much to offer in regards to tinkering and building things.@@hitmanshivam3889

@genehammond7239 Месяц назад

Nice job explaining the process Matt !!! 👍👍

@MattDealy Месяц назад

Thanks Gene! Glad it came across understandable :)

@bisarowood Месяц назад

nice job , I just picked up a couple of sx650 , one works fine just needs lights , the other has a broken power switch ... decent looking unit

@MattDealy Месяц назад

Oh nice! Yea they’re sweet units! The power switches do get really messed up from arcing over time. You can usually disassemble them and clean them. I have an SX-550 I’ll be doing a mod on to protect the power switch with a solid state switch. That mod works on anything with a power switch. Video should be coming in June. Thanks for watching!

@bisarowood Месяц назад

@@MattDealy cool. I wonder I have a parts Sansui R70 that has a similar switch ...wonder if that could work ...

@MattDealy Месяц назад

give it a shot! Cleaning the old switch isn't hard but you do have to drill out the rivets and replace them with a small nut and bolt. @@bisarowood

@bisarowood Месяц назад

@@MattDealy I should say the switch is probably ok but the shaft is broken...

@MattDealy Месяц назад

Ohhh shoot! Yea you'll have to replace it. @@bisarowood

@tennysoncason772 Месяц назад

Nice work!

@MattDealy Месяц назад

Thanks Tennyson 🙏

@randykyhn5585 Месяц назад

Thank you

@MattDealy Месяц назад

You're most welcome Randy! Thanks for trusting me with the repair 👨‍🔧

@piotrfi8004 Месяц назад

Hello! Do you know why the "tuning" indicator on my Pioneer SX 650 receiver isn't working? I checked it with a multimeter, and it works fine, but it doesn't work when connected in the circuit. Could you tell me the capacitance and voltage of the film capacitors you used to replace the blue tantalum capacitors in the tuner, preamplifier, and power amplifier circuits? Why didn't you replace the two transistors that get very hot and don't have appropriately sized heat sinks?

@MattDealy Месяц назад

Hello! I don't know why the tuning indicator isn't working. I would measure the voltage across the wires at the lamp. If there is none, follow the schematic back to where it should be coming from until you find power. Should be around 8v I believe but you can check the schematic. I use the exact same capacitance rating as what was on the tantalums. Your unit may be different so I would recommend checking your service manual or pulling the capacitors and reading the value off of them. Most of them were either 2uf or less as I recall. I used higher voltage film caps either 50v or 63v because it's what I had on hand and shouldn't affect performance. I assume you're referring to the two that I put new thermal paste on in the power amp/power supply? They tested fine and there was no sign of excess heat so I left them alone.