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Electronics => Repair => Topic started by: dexters_lab on February 07, 2017, 05:27:08 pm

Title: HP 17B II Calculator Bad LCD
Post by: dexters_lab on February 07, 2017, 05:27:08 pm
I have this HP 17B mk2 with a bad screen, as you can see from the pics there are a couple of columns out and there are often a couple more than in the pic.

I have not opened it up yet, but i wondered if this is a common problem and if they can be nursed back to health

if it's zebra strip on the LCD then i guess i am in with a chance but if the LCD has a hotbar to flat flex or something it might not be so easy

anyone with any experience doing this?
Title: Re: HP 17B II Calculator Bad LCD
Post by: SingedFingers on February 07, 2017, 05:49:27 pm
They're a complete bastard to get inside. Peeling and drills. It does however have zebra strips so cleaning may work. There's a tear down for one here to give you an idea of the process: http://suna-jebem.blogspot.co.uk/2015/02/hp-17b-ii-tear-down-it-doesnt-power-on.html (http://suna-jebem.blogspot.co.uk/2015/02/hp-17b-ii-tear-down-it-doesnt-power-on.html)

HP tend to make things difficult for repairers. I've given up now. When my 48GX display packed in I just got a 50G rather doing the dame jig. I actually bought a spare 50G today by coincidence as insurance against this one going to shit as there is no viable successor to it.
Title: Re: HP 17B II Calculator Bad LCD
Post by: dexters_lab on February 07, 2017, 06:06:30 pm
heat stakes FFS!?  |O

maybe i'll leave it, if i whack it on the desk it fixes it for a short time :-DD

Title: Re: HP 17B II Calculator Bad LCD
Post by: Armadillo on February 07, 2017, 06:14:07 pm
Maybe you have dropped it before, Try tightening the screws to compress the casing.
Title: Re: HP 17B II Calculator Bad LCD
Post by: SingedFingers on February 07, 2017, 06:15:42 pm
I did that with an old Motorola L7089 phone I had. Everytime I smashed it on the table it worked for another couple of weeks. After about 3 months I popped the LCD :)
Title: Re: HP 17B II Calculator Bad LCD
Post by: Armadillo on February 07, 2017, 06:38:45 pm
Maybe you have dropped it before, Try tightening the screws to compress the casing.

Oops! Sorry, I read somewhere it plastic heat rivet....no screws....

I would leave it not opened.