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Disabling HP65/67 card reader write protect
05-09-2019, 12:44 AM (This post was last modified: 05-09-2019 12:45 AM by teenix.)
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teenix Offline
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RE: Disabling HP65/67 card reader write protect
Hi all,

Just FYI, here is a capture of the switch signals as a card is read on a HP-67.

Yellow - Motor Switch
Blue - Head Switch
Purple - Write Protect Switch

The respective line dropping in voltage indicates the switch closing.

The image indicates a write protected card

If Blue(HDS) and Purple(WPS) close together, the card is not write protected.

cheers

Tony


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RE: Disabling HP65/67 card reader write protect - teenix - 05-09-2019 12:44 AM



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