Posts: 464
Threads: 10
Joined: Jan 2005
Hi all!
I'm restoring/repairing an HP-67 for a friend.
It took me a long time to find the proper parts and I have restored the card reader, the battery contacts, found a perfect keyboard with non-yellowish keys.
It now works fine except for one thing: the decimal point does not display.
That is all digits display perfectly, calculations, programming... are fine except the decimal point that should light and doesn't!!
Logic board is Ok.
I would like to repair it if possible instead of swapping the display subassembly because I use the Bendix Hp-67 as a base and it has a very complex internal wiring to a specific connector (I've posted pics here a couple of months ago)
Does anybody have a hint ?
Many thanks in advance!
Etienne
Posts: 464
Threads: 10
Joined: Jan 2005
Hi all,
Me again.
I've solved the problem.
One of the Bendix connector wires had an unwanted connection to the display driver.
The decimal point is back !
Thanks
Next week-end, I'll try to post a couple of picture of the internals.
Etienne
Posts: 304
Threads: 32
Joined: Nov 2005
Etienne,
by solving the problem by yourself, you've spoiled our party! We would have been so happy to help you locating the problem ...
;-)
I'm looking forward to your pictures!
Best Regards,
Juergen
Posts: 464
Threads: 10
Joined: Jan 2005
Hello Jürgen !
Don't worry, I still have problems with the Bendix-67 :-)
Mainly a weird behaviour during calls to LBLs A to E (programming them is Ok, calling them is not).
As I don't know if this is related to this particular customized calculator, I'll let it to rest for this week and try again in a couple of days.
It's been 8 hours and 2 sushi meals since I started the repair.
Even if it's not my first 67 repair, I proceed more cautiously with this one as I don't want to break the custom connectors all linked to the card reader.
Instead, I'll post the first pictures in a couple of minutes.
Cheers to all !
Etienne