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Modifying the HP42S?
02-26-2018, 02:37 AM
Post: #2
Ken S Offline
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RE: Modifying the HP42S?
Ok, after way too much searching it appears that the double speed crystal would kill the IR printing. Could be got around by having both crystals and switching between them but that would require finding space for both plus a switch and finding somewhere to mount said switch.

I will restrict my modifications to the 32kb ram and replacing the LCD display.

Ken
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Messages In This Thread
Modifying the HP42S? - Ken S - 02-24-2018, 01:20 AM
RE: Modifying the HP42S? - Ken S - 02-26-2018 02:37 AM
RE: Modifying the HP42S? - mfleming - 02-26-2018, 04:12 PM
RE: Modifying the HP42S? - Ken S - 02-27-2018, 12:28 AM
RE: Modifying the HP42S? - Sylvain Cote - 02-27-2018, 12:38 AM
RE: Modifying the HP42S? - Ken S - 02-27-2018, 04:02 AM



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