bmsgaffer

Need Pictures of Circuit Boards (Or dead circuit boards)

26 posts in this topic

ID: 26   Posted (edited)

As you can see the 470 resistor does a voltage drop but there is nothing in the way of regulation thus the chip is prone to fail simply by voltage spikes. Bad engineering by my thinking.  I believe its pointed out the 54L IC is specific and costs more and maybe might be hard to find. Maybe a different IC, a regulator circuit with some filtering and it might hold together. Still the best and only smart route is the latest board that simply uses diodes in place of the 54L IC.

 

Better yet would probably be the surface mount technology. As mentioned the cost will be lower and there are coatings that will keep the components on the board.

Edited by 6bg6ga

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