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#503655 - 08/29/21 12:30 PM Service Manual needed for a Bk-9
Dengizich Offline
Member

Registered: 07/19/21
Posts: 74
I am in need of a Service Manual for a Roland BK-9.

I will have to replace one of the 10 sliders underneath the double display. If anyone knows where can I find a replacement part (linear potentiometer), please let me know.

Also I'm having some phone output issues, I can't hear anything in my headphones, anyone who experienced something similar, also please let me know.


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#503656 - 08/29/21 09:12 PM Re: Service Manual needed for a Bk-9 [Re: Dengizich]
TedS Offline
Member

Registered: 04/28/06
Posts: 805
Loc: North Texas, USA
I don't have the service manual, but I would also like a copy if you find one. Even with the diagnostic procedures, finding replacement parts could be a challenge because not that many BK-9s were made. I wonder whether it shares the slider assembly and other parts with another Roland keyboard that might have sold in larger numbers?


Edited by TedS (08/29/21 09:12 PM)

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#503657 - 08/29/21 09:26 PM Re: Service Manual needed for a Bk-9 [Re: Dengizich]
Diki Offline


Registered: 04/25/05
Posts: 14182
Loc: NW Florida
The slider board is a single component from Roland, long out of stock. I don’t think the sliders are separate components, and are surface mounted, a quite difficult task to change out….
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#503667 - 08/30/21 05:52 PM Re: Service Manual needed for a Bk-9 [Re: Diki]
Dengizich Offline
Member

Registered: 07/19/21
Posts: 74
Oh, yeah..., they are separate components no doubt about that, just like I assumed they would, they are called linear potentiometers or slide pots. I'll give them a good cleaning with a contact cleaner, if that doesn't solve the issue with the Upper1 slider, I'll swap it for another one that I don't use as much, or I'll try to find a replacement linear pot...

I don't recommend anyone to do this type of work themselves, unless they have experience with electronics, otherwise things can get damaged very quickly...

The 10 linear pots have a marking on the side >>> 248C-10KB <<< , without checking the resistance on them, going by the number I assume it's a 10K Ohm pot, will see, I'll need my DMM for that.

Wish me good luck! I wish I had that service manual, anyone has it, please share.


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#503669 - 08/30/21 09:04 PM Re: Service Manual needed for a Bk-9 [Re: Dengizich]
Diki Offline


Registered: 04/25/05
Posts: 14182
Loc: NW Florida
Check your messages
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An arranger is just a tool. What matters is what you build with it..!

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#503878 - 09/27/21 12:46 PM Re: Service Manual needed for a Bk-9 [Re: Dengizich]
Dengizich Offline
Member

Registered: 07/19/21
Posts: 74
OK


Edited by Dengizich (09/27/21 12:47 PM)

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#507465 - 01/19/23 10:19 AM Re: Service Manual needed for a Bk-9 [Re: Dengizich]
AlwaysaPlanB Offline
Junior Member

Registered: 03/12/21
Posts: 9
Loc: UK
Anyone know where I can find pictures or video of how to dismantle a BK 09, please? I need to fix a dodgy keyboard contact. Thanks.
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“It will be okay in the end. If it’s not okay, it’s not the end.” John Lennon
Rolands BK-9, BK7m, RD250S, Technics 1600, Logic Pro, Mainstage

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#507473 - 01/21/23 09:45 AM Re: Service Manual needed for a Bk-9 [Re: AlwaysaPlanB]
Diki Offline


Registered: 04/25/05
Posts: 14182
Loc: NW Florida
Originally Posted By AlwaysaPlanB
Anyone know where I can find pictures or video of how to dismantle a BK 09, please? I need to fix a dodgy keyboard contact. Thanks.


This thread has photos of which screws to remove and how to open up your BK9…

http://www.synthzone.com/forum/ubbthread...mova#Post503880
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An arranger is just a tool. What matters is what you build with it..!

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