HP Forums › HP Museum Forums › Old HP Forum Archives v
hp71 32k CMT Ram Module troubleshooting

Linear Mode
hp71 32k CMT Ram Module troubleshooting


▼
Andy Offline
Unregistered
Posts: 212
Threads: 80
Joined: May 2008
#2
10-14-2003, 05:07 PM

I took a chance and bought an "untested" 32K CMT ram module recently. Well, its tested now and its not working :( Guess that makes the price/Kb infinite.

I have disassembled the module. All of the contact fingers look good. There are two potted ic's and a single memory chip (NEC 8616K910 D43256G-15L).

What are the chances its the memory chip? Is that easily replaceable?

Thanks,

Andy

Find

Possibly Related Threads…
Thread Author Replies Views Last Post
  42S with nonvolatile RAM Lyuka 5 2,917 12-13-2013, 08:52 AM
Last Post: Lyuka
  HP-41CL setup troubleshooting Xavier A. (Brazil) 2 1,859 12-02-2013, 06:29 AM
Last Post: Xavier A. (Brazil)
  HP-97 Printer Troubleshooting aj04062 6 2,499 10-15-2013, 08:45 PM
Last Post: Eric Smith
  Best way to test HP-71B RAM modules (the 32K/96K ones etc.)? Philippe Lasnier 4 2,359 09-25-2013, 09:54 AM
Last Post: Philippe Lasnier
  HP 2225D+ RAM failure/replacement Luca 4 1,900 09-10-2013, 01:46 PM
Last Post: Luca
  Questions about building a RAM card for hp 48 Waon Shinyoe (China) 0 1,085 07-09-2013, 09:53 PM
Last Post: Waon Shinyoe (China)
  Programming CMT EPROM modules for HP-41 Paul Berger (Canada) 4 1,882 01-22-2013, 06:04 PM
Last Post: Paul Berger (Canada)
  HP-41 CMT EPROM & ZEPROM Programming Dan Grelinger 3 1,443 11-26-2012, 02:42 AM
Last Post: Diego Diaz
  CMT RD-128 Manual Philip Reagan (Texas) 1 1,030 09-07-2012, 12:08 AM
Last Post: Sylvain Cote
  RAM Card compatibitlity Ignacio Sánchez 2 1,325 09-06-2012, 07:20 PM
Last Post: Raymond Del Tondo

Forum Jump: