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Analogue-sequencer

Index last updated: 2026-04-28 23:15 UTC

Message

p3 woes: update

2004-04-14 by blip

hi all...

so i took all of my ICs out of the board. the regulator now gives me a
very consistent -.326V from input (neg probe) to output (pos probe). from
ground to either input or output, i get 0V. i'm getting 9.5V across D6.

so the problem appears *not* to be an IC... what on earth could it be???
F1 is just a wire now, and D1 has been removed completely.

hmmm... i just tried something... with the power completely disconnected,
i'm getting -.326V from the regulator input to its output... is D1
supposed to have a wire link or something??? the picture of the completely
populated board on colin's site completely omits that diode.

somehow, the power seems not to be getting to the regulator at all... it's
getting through D6, but not into the regulator. there is plenty of solder
on the input pin, so the only thing i can think of is that somehow in
replacing the regulator, solder flux covered the through-hole plating and
some of the external track and thus the power's not getting from the track
to the pin... does that sound possible??? if so? how do i go about fixing
it?

thanks again all...

bleep.
out.

---
http://leichenfeld.iuma.com
http://thirdwavecollective.com

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