# D-110 power switch assembly

**URL:** <https://forums.syntaur.com/t/d-110-power-switch-assembly/609>\
**Category:** Synth Repair\
**Created:** [February 19, 2019, 8:27am UTC](https://forums.syntaur.com/t/d-110-power-switch-assembly/609 "2019-02-19T08:27:51Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![fanwander](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/f/8e8cbc/32.png) [@fanwander](https://forums.syntaur.com/u/fanwander)\
**Post date:** [February 19, 2019, 8:27am UTC](https://forums.syntaur.com/t/d-110-power-switch-assembly/609/1 "2019-02-19T08:27:51Z")

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Hello,

we have here a Roland D-110 on which the original power switch has been replaced.  
 ![](https://forums.syntaur.com/uploads/default/original/1X/1771bdcc041710312da1a08e67ca9e75959de959.jpeg)

An original switch still sits on the pcb:  
 ![](https://forums.syntaur.com/uploads/default/original/1X/0b48e4846e41830dc764f644a98f8ea5554678ba.jpeg)  
(Btw: it looks a little different from the one the syntaur shop lists; shorter switch axis)

The suitable switchcap is available at syntaur.  
The question now is: was there a lever between the cap and the switch?

Best regards  
Florian

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**Author:** ![Sam](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/s/5f9b8f/32.png) [@Sam](https://forums.syntaur.com/u/Sam)\
**Post date:** [February 19, 2019, 10:11pm UTC](https://forums.syntaur.com/t/d-110-power-switch-assembly/609/2 "2019-02-19T22:11:09Z")

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Hi Florian,

The shaft of that original switch has broken away - it should be longer, as in the photo on our site:

> **[Power switch, pushbutton](https://syntaur.com/Items.php?Item=3916)**
>
> Pushbutton power switch, double-pole.
> 
> If this part is out of stock, part #4934 can be substituted, as long as the switch is not circuit-board mounted.

Then the switch cap presses onto the switch shaft directly. As you can see, we don’t have that switch available, but we do have this one:

> **[Power switch, pushbutton](https://syntaur.com/Items.php?Item=2227)**
>
> Power switch, pushbutton.

It is identical, except for an additional solder lug. You could simply clip that center lug off, and use the #2227 as a DPST switch.

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**Author:** ![fanwander](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/f/8e8cbc/32.png) [@fanwander](https://forums.syntaur.com/u/fanwander)\
**Post date:** [February 19, 2019, 10:29pm UTC](https://forums.syntaur.com/t/d-110-power-switch-assembly/609/3 "2019-02-19T22:29:52Z")

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Hi Sam, thanks! That is what I expected, but the original owner didn’t want to believe… 😉

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<div class="post-metadata">

**Author:** ![fanwander](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/f/8e8cbc/32.png) [@fanwander](https://forums.syntaur.com/u/fanwander)\
**Post date:** [February 20, 2019, 3:52pm UTC](https://forums.syntaur.com/t/d-110-power-switch-assembly/609/4 "2019-02-20T15:52:41Z")

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Hi Sam,

now I’ve got some full picture from my colleague. (I don’t have the synth in front of me).

 ![](https://forums.syntaur.com/uploads/default/original/1X/42cdf11702dda88244d5fef4a55d084c84ba9c5b.jpeg)

He is talking about the long black rod which leads from the button to the switch. Do you have this part occasionally.

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<div class="post-metadata">

**Author:** ![Sam](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/s/5f9b8f/32.png) [@Sam](https://forums.syntaur.com/u/Sam)\
**Post date:** [February 20, 2019, 4:26pm UTC](https://forums.syntaur.com/t/d-110-power-switch-assembly/609/5 "2019-02-20T16:26:54Z")

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We did just put that part in stock a few days ago!

> **[Power switch arm, Roland](https://syntaur.com/Items.php?Item=7588)**
>
> Plastic power switch arm, Roland.

Note that for the D110, it looks like there are a couple of ‘sleeves’ that extent the length of this arm to the power switch cap, and we do not have those available. If you have the service manual, they are parts 17 and 18 in the listing on page 2.