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Author Topic: Boss DD-2 no power: what is this in the power supply?  (Read 410 times)

beedoola

Boss DD-2 no power: what is this in the power supply?
« on: April 05, 2021, 10:32:07 PM »
I'm getting now power to the board. What is this component circled in the schematic? It's an inductor and cap?

It's in the DC board supply section. It's the part that connects 4, 3 and 2 on the board.

https://www.hobby-hour.com/electronics/s/dd2-delay.php
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antonis

Re: Boss DD-2 no power: what is this in the power supply?
« Reply #1 on: April 06, 2021, 05:35:59 AM »
It's a simple LC low-pass EMI filter (t-type)..

You can bypass it by disconnecting 2 & 4 and connect battery (+) directly to 22..
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"I'm getting older while being taught all the time" Solon the Athenian..
"I don't mind  being taught all the time but I do mind a lot getting old" Antonis the Thessalonian..
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