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What is wrong with this HP-19C


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Post: #5
05-02-2010, 11:04 PM
Michael de Estrada Offline
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I spied this HP-19C on TAS. It's obviously got a problem, but I wonder what. Bad ACT? Anyway, here it is:

HP-19C on TAS

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Post: #6
05-02-2010, 11:32 PM
Michael Meyer Offline
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Probably. The 19C is essentially a Woodstock. Powering it up without a good battery could result in burning out the ACT and other components, such as the continuous memory chips and even the ROM chips. This would result in the flashing display.

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Post: #7
05-02-2010, 11:44 PM
Michael de Estrada Offline
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Yeah, so sad. These are so rare anyway, and then to see that most of them are fried is truly a shame. Fortunately, I have one that works perfectly, but am always worried about charging the batteries inside the calculator.

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Post: #8
05-03-2010, 01:41 PM
Michael Meyer Offline
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BTW, occasionally these will power up O.K. when a regular battery is put in place if it hasn't been burned out yet. That's why I'll bid some for it, but I won't go too high... it's not worth it if it's only going to be a parts machine. But, I had to mention... there's a chance it COULD still work.

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