BrothersInArms
Active Member
Hi chaps,
The power on LED of my friend's Onix OA21 has died. He tried to replace the LED with an off the shelf 2V LED to no avail as the LED flashed and burned out within a second after turning the unit on. For now I presume he's obeyed the LED's polarity.
Quick measuring in my OA21S revealed that the voltage at the LED's connection is 33V - way beyond off the shelf LEDs limits. In its vicinity there's some bulky resistor thing going on - maybe a current limiting resistor... I didn't check for that.
Does anybody know which spec LED would work in this situation? Thanks!
The power on LED of my friend's Onix OA21 has died. He tried to replace the LED with an off the shelf 2V LED to no avail as the LED flashed and burned out within a second after turning the unit on. For now I presume he's obeyed the LED's polarity.
Quick measuring in my OA21S revealed that the voltage at the LED's connection is 33V - way beyond off the shelf LEDs limits. In its vicinity there's some bulky resistor thing going on - maybe a current limiting resistor... I didn't check for that.
Does anybody know which spec LED would work in this situation? Thanks!