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HP 32S Repair
09-17-2016, 08:58 PM
Post: #11
RE: HP 32S Repair
I tried removing the PCB today. It was easy and the twist tabs did not break.

I cut a slim piece of card stock 1.25" long and 1/16" wide to go between the keyboard contacts and the foam rubber that holds them against the PCB, and reassembled.

The good news is that the keyboard works great, but the display is now missing dots. The display electrical contact is a thin strip of rubber with embedded vertical conductors that contacts some pads on the PCB at the top of the display (opposite the keyboard contacts). Clearly this requires extreme precision alignment and even though everything looks like it's correctly aligned, either some dust got in there in spite of my being careful, or the alignment is off.

I was able to remove the PCB a second time and carefully cleaned the contact strip and pads but on reassembly the display problem is worse.

Oh well.... sigh. At least I tried.
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Messages In This Thread
HP 32S Repair - jhg - 09-10-2016, 05:48 PM
RE: HP 32S Repair - Nick - 09-10-2016, 08:10 PM
RE: HP 32S Repair - Ed Wright - 09-11-2016, 12:28 AM
RE: HP 32S Repair - Marcio - 09-12-2016, 04:57 PM
RE: HP 32S Repair - gaster - 09-13-2016, 02:54 AM
RE: HP 32S Repair - Nick - 09-11-2016, 05:32 AM
RE: HP 32S Repair - jhg - 09-11-2016, 05:37 AM
RE: HP 32S Repair - BartDB - 09-12-2016, 03:04 PM
RE: HP 32S Repair - jhg - 09-12-2016, 04:29 PM
RE: HP 32S Repair - aj04062 - 09-13-2016, 12:45 AM
RE: HP 32S Repair - jhg - 09-17-2016 08:58 PM
RE: HP 32S Repair - mfleming - 09-18-2016, 01:46 AM
RE: HP 32S Repair - jhg - 09-19-2016, 06:11 PM
RE: HP 32S Repair - Logan - 09-19-2016, 11:20 AM
RE: HP 32S Repair - BartDB - 09-19-2016, 12:13 PM
RE: HP 32S Repair - Logan - 09-19-2016, 06:58 PM
RE: HP 32S Repair - mfleming - 09-19-2016, 07:19 PM
RE: HP 32S Repair - jhg - 09-19-2016, 09:17 PM
RE: HP 32S Repair - mfleming - 09-20-2016, 02:52 AM
RE: HP 32S Repair - PANAMATIK - 09-19-2016, 09:15 PM
RE: HP 32S Repair - Geoff Quickfall - 09-20-2016, 07:15 PM
RE: HP 32S Repair - Logan - 09-20-2016, 09:27 PM
RE: HP 32S Repair - jhg - 09-23-2016, 11:47 PM
RE: HP 32S Repair - mfleming - 09-24-2016, 02:49 AM



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