Roland S-50 - Key bed Strip Down - Restoration Part 4

Part 4 of the restoration of the Roland S-50. In this episode I turn my attention to getting the key bed out of the sampler and stripping it bad to the circuit board and contacts.
The initial investigation on the keyboard showed two dead keys and one key I marked as intermittent. This could be directly contacts or something a bit more sinister.
Given the number of missing screws on this sampler when it was acquired, I know someone has been into the sampler before, but to do what I am not sure. I am also pretty sure that liquid has been spilt into the sampler as there are a few pointers to this having occurred. This was confirmed once I got the keybed out.
I haven't stripped the key bed for a Roland synth / sampler down in quite a while so this became a bit of a discovery as I reminded myself of the steps required.
Background
I acquired the Roland S-50 a few years ago after I had been on the hunt for a low-fi sampler. This fitted the bill sampling at 12-bits. Not only is the Roland S-50 a fairly useable sampler, Roland and many other software / sampling vendors also crafted sample sets for both this and the Roland S-550 / Roland S-330 platforms.
When acquired there were a few problems. Apart from the sampler being filthy, some keys either did't work or work intermittently and the screen randomly choose not to work. What I didn't know when I started this project was how involved it would get!
The equipment mentioned above (if you can still buy it!):
Roland S50 (Used): themusictechguyuk.me/3b3CQUo
Roland S550 (Used): themusictechguyuk.me/33TGRYM
📖Chapters:
00:00 Opening
00:11 It's only 6 screws
01:43 Channel promotion
02:06 Removing the next 8 screws
02:54 It's still not releasing
04:34 Now the motherboard also has to be removed!
07:01 Rear panel screws that need to be released
08:11 Motherboard is released
09:36 Key bed is disconnected
10:50 It's free, well almost
12:08 Aftertouch disconnected
12:23 It's finally free
12:40 Re-securing the motherboard for movement
13:40How to release the key springs
15:23 Getting to the key locks
16:19 Releasing the keys
19:16 what happens next
22:30 That's all folks
#RolandS50 #RolandS50Sampler #S50
Videos in this Series:
Part 1: • Roland S-50 - What to ...
Part 2: • Roland S-50 - How to g...
Part 3: • Roland S-50 - Front Pa...
Part 4: • Roland S-50 - Key bed ...
Part 5: • Roland S-50 - Key bed ...
Part 6: • Roland S-50 - Rust Rem...
Part 7: • Roland S-50 - Circuit ...
Part 8: • Roland S-50 - Key bed ...
Part 9: • Roland S-50 - Recappin...
Part 10: • Roland S-50 - Re-fitti...
Part 11: • Roland S-50 - 2nd Keyb...
Part 12: • Roland S-50 - 2nd Keyb...
Part 13: • Roland S-50 - Fitting ...
Part 14: • Roland S-50 - Completi...
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Roland S-50 - Restoration Part 4 - Keybed Strip Down - 2022-05-14

[@TheMusicTechGuyUK]

For less than the price of a cup of coffee, support the channel, join the TMTG community: themusictechguyuk.me/Community

[@IIXIIIVnk]

Thanks for vid..
Got mine completely working again 👍

[@TheMusicTechGuyUK]

Hi @IIXIIIVnk 👍 Glad to have helped. Jon