Rebuilding the CR 8000 Power Supply
Vložit
- čas přidán 24. 08. 2024
- This is another video in our series on the Roland CompuRhythm CR-8000, the vintage analog drum machine first released in 1981. In this video we repair and rebuild the power supply to convert a unit built for the European market to run on North American line voltages.
Nicely explained, great video. Thank you. I need to pick up another DMM for input voltage measuring. That's a great idea.
Thanks for watching Jim! You can never have too many DMMs.
Nice troubleshooting and repairs. Thankfully my cr8000 does not need a new transformer as I live in europe and have a european model.
Still a good idea to put a new X2Y2 cap across the 220v line and change the other caps with new/better ones.
I was also thinking to install a socket to be able to plug and unplug the cr easely.
Do you know by chance where I could find a rubber foot for my machine? I am missing just one but it is very annoying as she constantly tillt when I use her. I have seen that Syntaur have some repros (which also go on the tr909 as a side note) but they are charging for a 3$ part almost 27$ for shipping wich I can hardly justify paying...
Sadly, I don't know where to get new feet, at least not feet that are 'correct' for that era of Roland gear. I did buy a lot of generic feet a few years back off Aliexpress or eBay that I use for old test gear like Heathkit etc, and I recall they were about $5.00 for 100 and free shipping. Perhaps you could find something like that on Aliexpress, even though their search engine is horrible?
I just grabbed a CR-8000 when i was in Tokyo. Tested and all is wokring fine while there. I notcied on the back, it does say 117V on the rear plate. Do I need to change anything inside before runnig this in Canada? I do have a 100V transformer for runing my other Japanese PSU gear. SHould i just use that? I was confused that it said 117 on the rear, and it was running on 100V power there.
Neil, If it says 117V on the rear then the machine you purchased in Tokyo was destined for the US/North American market and will be fine. Don't use your 100V converter, it will put out too low a voltage (which should not cause harm). Glad to hear it works well, most gear from Japan is well cared for I find, with the exception of a lot of folks over there still smoking....less common here now, or in cases where the gear lived near the ocean (salty air).
The smoking is the one thing i have to re-get used to when I'm there! Yeah, they had no step up converters at the store - it was plugged into the refular wall at 100V. Thanks for the info.. I'm going to plug it in here (Canada) and hope for no snoke :)
If it was working in Tokyo it should work fine here, good luck! I just checked out your website, you have quite the portfolio, congratulations, and thanks for watching and reaching out.@@NeilParfittMusic
Thanks@@telefunkian ! I've just taken receipt of a tubbtec unipulse and I'm stoked to integrate the 8000 into the MIDI world :) Thanks for making these videos!