Posted on October 31, 2012 at 12:42Hi, I'm using the ST7540 for a little system of 2 computers, after two weeks I finally accomplished read, write, and send information. But suddenly, the PA (Power amplifier) stop working, so, the control loops start to working and needs more and more voltage and current, I don't know how it damage, but The ST7540 Have two test pin and I want to test it, but there's no word in the datasheet about how work those pins (27 and 28), can you explain me how?.
If there is a way to repair this PA, please tell me.
Thanks a lot. Greetings from Venezuela.
#test #problem #st7540 #pa-st7540
