Help identifying instrument cluster button

Munchies · 5 Feb 2023 at 17:20

I have an issue with an instrument cluster, there are two push buttons, the 'select' button appears to be stuck in the depressed position as far as the cluster is concerened. The button still 'clicks' when pressed and released, though it's an audibly duller click than the 'reset' button which is the same button type.

I'm thinking the button may have failed mechanically, and simply replacing it would fix the issue, as there doesn't appear to be anything obviously burned on the board, and no water damage. The issue I'm having is identifying the button so that I can source a replacement. Not sure if this is the best subforum to post this in, so apologies if there is a better one that I missed.

The images are quite large, so they are in a spoiler tag below. 'SW1' is the problem button / switch.

LuckyBenski · 7 Feb 2023 at 15:42

Looks like some Panasonic models would work, make sure to get the critical dimensions right:

Pin spacing
Overall width
Body height
Switch/button height

Search terms that worked for me were "round tactile switch".

e.g. EVQ11U05R or EVQ11L07K

Munchies · 7 Feb 2023 at 20:33

Thank you for taking the time to look, I realised after posting this, that dimensions would help. I meant to open it again tonight, but haven't got around to it yet.

The switches you've found appear to be similar to what I'm after. Another term I've found useful while searching is 'micro push button switch' As they seem to have a longer 'button'. There is a rubberised waterproof cover that goes over this button, so I'm assuming the shape / length of the plunger is quite important. The cluster is from a 2008 Yamaha FZ1S motorcycle.

I can't find anything that visually matches though. I will get around to measurements probably tomorrow which may help.

In the mean time I have tried a local cluster repair place in Hampshire, they've said they won't touch it because it's not from a car. Helpful. If anyone knows of any PCB repair places in the Dorset region, or any further affield that I could post to, that is seeming like the btter option. Unless / until I can find a cheap / broken replacement unit I can cannibalise a button from. Though I'd like to get the thing put back together soon.

d_brennen · 7 Feb 2023 at 20:59

Maybe try eBay with year/model of the car + breaking in the search? I've had a few bits over the years this way. Ask them of that have that part etc. even as a source of donor buttons

ZXSpectrum · 8 Feb 2023 at 15:48

I would have thought that it would be a good idea to replace with a temporary momentary button/switch to make sure that is definitely the problem or you might be wasting your time sourcing a part that may not be the fault.

Munchies · 8 Feb 2023 at 18:01

I see your point. It has also been suggested I remove the switch, and bridge the connection to test, as it's probably an off / on switch. However unless I am able to find a suitable replacement switch, I'm loathed to remove the current one. My preferred option at the moment, is finding a PCB repairer that can / will source and replace the switch, as electronics really are not my strong suit, and I'd rather give them an unmolested board to work on. If I can find a suitable switch, I can get it replaced at work, and it will cost basically nothing.