I bought recently a hp35 wihtout battery pack and charger , I made the battery pack and I installed but the machine does not work .
I revised the switch in the charger conector and its OK but the machine its totaly dead .
Any sugestions?
Thank YOU.
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hp35 Dead
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05-10-2008, 01:15 PM
I bought recently a hp35 wihtout battery pack and charger , I made the battery pack and I installed but the machine does not work . Any sugestions? Thank YOU. ▼
05-10-2008, 01:56 PM
Have you checked/wiggled/cleaned the ON/OFF switch. These get intermittent as they get used. On my 1973 model, I have to switch it on and off a few times to get it going reliably.
05-10-2008, 02:11 PM
Hi Victor
05-10-2008, 03:47 PM
there may be however, a dead circuit. Check this posting on an HP45 restoration and you will see the mechanism and why the switch might not work: http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv018.cgi?read=131014#131014
Hope this helps, geoff Edited: 10 May 2008, 3:47 p.m. ▼
05-10-2008, 07:29 PM
Thanks. Victor. ▼
05-11-2008, 05:34 AM
Buenas dias, Victor, IF you tried to measure the output voltages at the charger with NO calculator connected, and did not get anything, THEN I'd recommend you try to get a new charger. They don't cost a fortune and are frequently offered. ELSE the postings above apply. HTH, Walter
05-10-2008, 05:06 PM
I would sell it on the unmentionable auction website as a "For repair" listing. Then snap one up. Good luck! ▼
05-10-2008, 05:19 PM
Hello!
Quote: No, no, no! You describe it as "last time I used it, it was still working, but now I can't find the charger any more and therfore must sell it as untested". This phrasing is very popular among people who sell three or four calculators every week... But seriously: I would try to get a second one (they are really not expensive compared to other models) and switch components/circuit boards between the two until the defective part can be identified. Greetings, Max
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