Post Reply 
WP-34S keyboard overlays wearing out?
03-30-2014, 04:07 PM (This post was last modified: 03-30-2014 04:10 PM by jebem.)
Post: #12
RE: WP-34S keyboard overlays wearing out?
(03-29-2014 02:55 PM)walter b Wrote:  (...) Application is easy and straightforward using common sense. No sticker ever will stay fixed on fat Wink but dry wiping did do in my cases.
d:-)

Thanks again, Walter.
I can't wait to have the KB Overlays in my (greasy) hands... Smile
I guess I will use alcohol to clean the HP-30B faceplate and keys from any fat/grease that is accumulating now with the usage.

By the way, I just detected a small issue with my HP-30B keyboard:
Intermittently, one full horizontal row stops being registered (shift, 1, 2, 3, and "-" keys). At first, I thought it was a failing CPU, because I had to do a hard reset several times before it recovers from this missing keys issue.
Then, I suspected that it could be just a bad contact, and twisted the case a little bit... and it works without the need for resets. So it seems it has some kind of bad contact or PCB track failure.
I will have to open it to install the xtal and caps, and then I will have a look on this issue.

Has anyone experienced this kind of issues with the HP-30B's?

Jose Mesquita
RadioMuseum.org member

Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
RE: WP-34S keyboard overlays wearing out? - jebem - 03-30-2014 04:07 PM



User(s) browsing this thread: 1 Guest(s)