HP 67 problems



#3

Hello

I bought a HP 67 and after a quick test, I opened it to repair then gum card reader. Once assembled everything I encounter two problems:

1 - The reader does not work, it does not take the card when I insert it. I tried to connect the motor directly to the battery and it works. I have also checked the circuit and it is closed when I start inserting the card. What is it wrong ? Maybe is the chip damaged ?

2 - When I switch to program mode, nothing changes. I also tested the continuity of the tracks and it seems ok ... How can I fix it ?



Thank you very much in advance



Manel


Edited: 11 June 2013, 5:40 p.m.


#4

Welcome to the Forum, Manel!

You may find these links useful:

http://www.hpmuseum.org/guest/hoskins/67crfix.pdf

http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=179

Regards,
Bob


Possibly Related Threads…
Thread Author Replies Views Last Post
  Update (Fixed): Problems concerning HP 82104 card reader Edward Cheng 0 1,028 09-05-2012, 04:58 AM
Last Post: Edward Cheng
  Problems concerning HP 82104 card reader Edward Cheng 3 1,558 08-21-2012, 07:52 PM
Last Post: aj04062
  Followup to HP 12C keyboard problems Eric Rechlin 4 1,700 02-15-2012, 02:46 PM
Last Post: Eric Rechlin
  HP 15C LE: keyboard problems dietmar13 4 1,608 02-09-2012, 11:04 AM
Last Post: Bart (UK)
  HP-41C/LCD Display Problems Kevin Kitts 12 3,184 11-26-2010, 12:53 PM
Last Post: Randy
  HP-29c Power (?) problems Xavier A. (Brazil) 11 2,928 02-10-2009, 04:33 PM
Last Post: Xavier A. (Brazil)
  hp 41 problems JaSon 4 1,530 05-07-2008, 11:12 AM
Last Post: Winfried Maschke
  An idea on HP-35S Keyboard Problems Palmer O. Hanson, Jr. 4 1,507 04-17-2008, 03:28 PM
Last Post: Tom Mathes
  HP 17bII+ Solver Problems and Workarounds Don Shepherd 0 705 03-29-2008, 10:38 AM
Last Post: Don Shepherd
  HP 35S replaced (keyboard problems) Tom Mathes 15 4,459 03-18-2008, 11:05 AM
Last Post: Tom Mathes

Forum Jump: