Monday, May 10, 2010

Swapped Blue LEDs on Front PSI

Tonight I pulled the singled blue LED off my front PSI logic board, along with its accompanying resistor, and swapped it with two larger, brighter blue LEDs and a 39 ohm resistor.

It is brighter, but it seems to have affected the blink rate. The duration that the blue LEDs illuminate is somewhat shorter than before. This must have to do with a new resistance value. There are two trim potentiometers on the board, that adjust the blink duration for each color. Even at the maximum setting, the blue LEDs illuminate for less than 1/2 second.

This is all experimentation, so I'm not overly concerned just yet. I'm thinking a different trim potentiometer will help with the blink duration.

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