Thanks! Check out my overall review of the Turbo R
very interesting thread,
I always wondered why the FM sound on my Turbo R ST was 'muffled' compared to the audio from my old Sony + FM Pak. Earlier in the thread sd_snatcher mentioned that this was due to incorrect capacitor values in the low pass filter. Has anyone with access to a schematic ever figured out which capacitors to change to either correct, or improve the issue??
Seems a shame that such a wonderful computer is let down by this small design fault...
BTW: nice video robivy
I like your videos! Thank you, man!
After trying different solutions with varying results, here's what I found to be the best (easiest) solution to the FM 'soft/flat' sound.
Replace R23 with 27k resistor (to increase volume of FM sound)
Replace C159 with 150pF capacitor (to increase the frequency of the FM sound)
Optional: Replace both NP capacitors C40 & C19 with 1uF tantalum capacitors (it seems to cut down some of the high frequency background noise)
Try it, you won't look back. The difference is like night and day
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