HP 41CV problems

[Karl-Ludwig Butte]

Hi,

Raymond Del Tondo described in this old forum thread the procedure:

"Press [XEQ] [ALPHA] S I Z E [ALPHA] 0 0 0 , then press [PRGM] again.
On an empty CV or CX unit, the display will show '00 REG 319' ."

as a way to test memory:

"This way you'll see that the RAM chips are there,
and are likely to work."

In addition you may try a memory test routine which is described here. The actual program is on this page. The German description may be translated with deepl.com.

But perhaps there is not that much hope that all memory modules in your 41CV survived.

Best regards

Karl