How do I repair our Polder thermometer display?

The display on our Polder thermometer loses most of its crystals. I thought I could open it up and just wipe its “zebra” contacts, but they seem to be taped over and not subject to contamination. Plus, the crystals respond if I press on the sandwiched glass sheets. Do I try separating the sheets to inspect contact points, or is this repair not worth attempting?

Top Replies

Gough Lui 2 months ago +3

It's unlikely to be a problem with the LCD glass sandwich and it's more likely a failure of the LCD self-adhesive ribbon which is stuck down with adhesive in this type of assembly. The only way you can…
dougw 2 months ago +2

Have you tried pressing right on the zebra connector area? Your first instinct was likely correct - poor contact on some of the zebra contacts. It is tough to keep uniform pressure all the way along a…
beacon_dave 2 months ago +2

I recall something similar cropping up on the community forum a while back. You can get anisotropic conductive film tape: https://www.3m.co.uk/3M/en_GB/p/d/v000073742/ if you can manage to separate…

Parents

phoenixcomm 2 months ago

I have had problems of this sort before. solution. Toss It into the bin. It is a major pain, in the tush, to remove cleanly and then reapply it. In the factory, this is done with a jig, which you don't have. I hate to be the naysayer but toss it in the bin. Instead, build a new one, that is Arduino powered.

Good Luck.
Cancel
Vote Up +2 Vote Down

Sign in to reply

Cancel

Reply

phoenixcomm 2 months ago

I have had problems of this sort before. solution. Toss It into the bin. It is a major pain, in the tush, to remove cleanly and then reapply it. In the factory, this is done with a jig, which you don't have. I hate to be the naysayer but toss it in the bin. Instead, build a new one, that is Arduino powered.

Good Luck.
Cancel
Vote Up +2 Vote Down

Sign in to reply

Cancel

Children

No Data