2014-08-07, 05:31
Ah, good. You should put the 47 Ohm thing in the title, so as to sweep up more people (like myself) who have this same problem.
I counted the parts and assumed the 49.9 was to sub for the 47s. One of them just sets the backlight brightness on the display, but the other two set the value of a low-pass filter (I think) on the amplifier board. I guess a 5% change in the filter cutoff isn't going to cause any issues.
I can get 47 Ohm resistors in town, maybe I'll try to find the right values before I start stuffing the amplifier board.
I counted the parts and assumed the 49.9 was to sub for the 47s. One of them just sets the backlight brightness on the display, but the other two set the value of a low-pass filter (I think) on the amplifier board. I guess a 5% change in the filter cutoff isn't going to cause any issues.
I can get 47 Ohm resistors in town, maybe I'll try to find the right values before I start stuffing the amplifier board.