Pioneer SX-3800 partially dead, let's fix it.

This was an acquisition from a few years ago, and it has multiple faults. All of these era Pioneer machines are all going to have the same issues. Bad capacitors from use, as well as noisy transistors.
So let's restore this beauty to its former operating glory.
#vintageaudio #pioneer #sx3800 #restoration

[@AxisinAction]

Fantastic. Just bought a SX-3800 and pulled the top off to clean all exterior face plates. Your video will help me to look for worn or bad components and clean what I can.

[@craigm.9070]

Thank you for your time on this classic receiver. One of Pioneer's last silver face hurrah's; with some of the coming cost cutting measures mixed in for the future technician to sort out. If I remember correctly, the display has an unobtanium IC that sometimes fails...which leads to alot of cannibalization of other machines. There is another restoration video that shows green sockets used with set screws for the wires; I'll have to find it again so you can see a visual reference...just in case.

[@BigBadBench]

43:40 It always comes back to weather with you!

[@THEtechknight]

xD I know I know, but... ya know how it is lol

[@twcman05]

👀Love it!

[@myblack6636]

to clean this tonished contacts there a better way of doing it instead of using sandpaper. those contacts are in most case coated for better contact und prevent early corrosion, sandpaper will scratch it away. You can use kitchen stainless steel polisher/cleaner with a Q-tip and maybe a drop of water, it's very usefull.

[@THEtechknight]

I am aware, but the coating (plating) has already corroded away causing the problem to begin with that simple contact cleaner wouldn't resolve. I have run into this a few times

[@myblack6636]

You should test big capacitors with 100/120hz and not with 1khz. Change your DER EE 5000 to 100/120hz and it will measure the right specs (it needs a few seconds). Filtercaps are not made to be run at high frequencies. All LCR meters are limited in magnitude of a 10th of the max capacitance if the applied frequency is 10x higher. i.e. 100hz max 50'000uF, 1kHz 5000uF, 10kHz, 500uF etc...