On 3/15/2010 9:12 PM Warren Block spake thus:

David Nebenzahl wrote:

It's an NTE 1904 (replacement for ECG1904). Similar to the LM78xx
series, I guess; just your standard 3-terminal positive regulator.

Not sure what you mean by only 1.75 volts across; do you mean the
difference between input and output? In any case, I assume it's working
correctly, since I can see 3.xx volts at the output.

I tried it using a variable DC power supply; no better result. I'm
thinking there's something wrong with the camera.

(And by not working I mean the camera doesn't respond to the power
switch *at all*. No little beeps, no display, nothing.)

Polarity on the jack, or maybe a blown picofuse?

Polarity is correct; there's a legend cast into the camera showing the
inner post is positive.

Picofuse inside the camera? Just discovered I'd need a special
screwdriver (with a 3-wing tip) to get inside the dang thing. I've got a
whole set of security screwdriver bits, but nothing that small.


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