How to repair dash selector wheel / button?

[RikJonAtk]

The dash display selector wheel / button failed on me recently... I've dismantled the binnacle and removed the offending circuit board (pictured below).

The question is, is it possible to repair these (the silvery / grey one) or do I need to replace? Any guidance on either approach would be appreciated.



I took lots of pictures when dismantling so will write a How To when finished.

Cheers,
Richard

[RikJonAtk]

Looks like this when slightly more dismantled...

The circuit board describes it as component 'ENC1'. It has 5 soldered joints to the board, so presumably one live, one return for the push button and three returns for the rotary function.

I can't see any manufacturers marks on it, but I haven't taken the switch off the board yet.

Any helpers?

PS - Just googling '5 pin rotary encoder' does pull up results, but I need the right one with the correct functionality and pin layouts and I've no idea which is right...

Edited by RikJonAtk on Sunday 4th September 08:23

[RikJonAtk]

Hmm... Gotta love electronics. After receiving it's 4th or 5th bathing in Contact cleaner, the switch 'feels' like it's working again. The rotary and button functions are both nice and crisp again.

Will re-assemble and test... Fingers crossed!

[nawarne]

Hi, Rik(?),

I believe, buried within PH posts, there's a guide on how to dismantle the dash...but, probably nothing on the removal of the PCB's.

The age of these cars now will, I'm sure, throw up a lot of these (electronic) failures. I've just had my dash returned from Paul Smith after an annoying fault. The LCD was just showing "awaiting data" and the dots on the display traversing the screen - would not respond to any input from the external buttons. All sorted now, but with effectively just one repair 'avenue' in Paul, it took ages to get sorted.

Well done for posting a possible solution to your issue.
Nick

[RikJonAtk]

Well, I got it fixed... How To PDF that I created is here... Feel free to download / share / use as you see fit.

https://www.pdf-archive.com/2016/09/04/repairing-t...

[Malcster]

I used these guys to refurb the headlight PCB in mine:

http://mcielectronics.co.uk

[JimmyZZ]

Great work.
Respect to you for sharing your knowledge!

Best regards
JimmyZZ

[Raffaele]

Hi, sorry but I can't download the pdf

[Raffaele]

my instrumentation receives only 2 screens, the one with the three light steps for the engine revs and the one with the hour minutes volume and lcd screen contrast, nothing else tells me to hold down fog for 5 seconds and after doing so the screen goes dark. what could it be