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Author Topic: GVP HD8+ problems  (Read 6734 times)

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Offline motrucker

Re: GVP HD8+ problems
« on: May 14, 2012, 11:08:51 PM »
You are a bit stingy with your info, but - assuming you have the GVP PSU unit, and suspect it as a problem, why not take a multimeter to the outputs and see what it says? Could be a bad PSU, or corrosion on the contacts? (Just a couple of wild ideas)
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A2000 GVP 40MHz \'030, 21Mb RAM SD/FF, 2 floppies, internal CD-ROM drive, micromys v3 w/laser mouse
A1000 Microbotics Starboard II w/2Mb 1080, & external floppy (AIRdrive)
C-128 w/1571, 1750, & Final Cartridge III+
 

Offline motrucker

Re: GVP HD8+ problems
« Reply #1 on: May 16, 2012, 01:21:53 AM »
Here is the data sheet for the LS74LS244 chip.

http://pdf1.alldatasheet.com/datasheet-pdf/view/46211/SLS/LS244.html

If you search the other number, I am sure you'll find it too.
Could easily be one of the "jelly bean" chips...
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A2000 GVP 40MHz \'030, 21Mb RAM SD/FF, 2 floppies, internal CD-ROM drive, micromys v3 w/laser mouse
A1000 Microbotics Starboard II w/2Mb 1080, & external floppy (AIRdrive)
C-128 w/1571, 1750, & Final Cartridge III+
 
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