08-03-2015, 02:35
Quote:If I measure voltage across diode 1 I am getting 9v.
Wait... if you are getting 9V at D1, the fan led must lit.
As all your LEDs are not working, is there any possibility that they are all reversed?
On TX v2.xx boards led cathode is facing the words FANLED and TXLED.
Can you post values used for R1 an R2 (TX unit)?

