Battery Question

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Kurt_
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Battery Question

Post by Kurt_ » Fri Jun 29, 2007 2:50 pm

I want to replace the power jack on my sony dsc p73 camera (the problem was simply several pairs of batteries too worn out to use with the camera, although they read 2.7V with no load), because sony wants my money by making it weird shaped with 3 connections, excluding ground. Power jacks from them are $100 CAD.


So I got a steady 2.5ish volts going (later 4.0 after I read the jack supplies 4.5V), hooked it up to the 3 contacts in every which way possible (I knew one was voltage in and one was ground. I connected the other two to ground in every way possible, to no avail.

The I hooked up 2.5V (and, just now, 2.9V, and 2.9V with a 500 ohm resistor in series) to the battery contacts. The regulators (linear to switching) output maximum 1 and 1.5A, and the fuses are rated at 2.5A. It refuses to turn on.

It has 4 fuses. 3 are simple fuses, and one is an IC.

Suggestions as to how to proceed? Why does it not turn on when the correct voltage is applied? As it doesn't turn on, I can't check the current.
Hey, sup?

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vskid
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Post by vskid » Sat Jun 30, 2007 9:05 am

I think theres a board in the battery and that needs to be hooked up. Like for the PSP, with the 3 AAA battery pack, you have to remove the cell from an existing pack and replace it with the AAAs.
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Post by Kurt_ » Sat Jun 30, 2007 11:30 am

But it takes standard NiMH or Alkaline AA's. :?
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Post by vskid » Sat Jun 30, 2007 11:52 am

I'm confused now, could you post a pic of what you mean?
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Post by csurban » Sat Jun 30, 2007 4:29 pm

If I understand what you are doing correctly, you may have fried it. :? Basically anytime I have to try every different wire combination and it still does not work, that means that the first wiring config I tried fried the electronic. :cry:
nope... can't think of anything I could possibly want to put in my Signature Block...

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Post by Kurt_ » Mon Jul 02, 2007 1:03 pm

It's not fried. Both the power source and camera work perfectly.

The Camera has a battery holder. I am wiring 2.9V DIRECTLY to the contacts of the 2 AA battery holder, and the camera refuses to turn on.

However, with 2 AA batteries hooked up to the same spot, it works fine.
Hey, sup?

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Post by vskid » Mon Jul 02, 2007 2:58 pm

Just post a picture, its worth a thousand words and is usually easier to understand.
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Post by timmeh87 » Mon Jul 02, 2007 9:05 pm

what are you making 2.9v with?
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Post by Kurt_ » Tue Jul 03, 2007 5:19 am

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Hey, sup?

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timmeh87
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Post by timmeh87 » Tue Jul 03, 2007 6:35 am

Wth are you doing up at 6am :o
(edit: no daylight savings time around here i guess)

where are you getting 2.9v from?
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