[TenTec] 544 Tritn Whine

[Kirk Smith]

Hello to all...My 544 Triton seems to have a high pitch whine, at low volume, with the RF Gain up or down. I've read a review on E-Ham about a mod that eliminated the noise.....they removed the c5 cap 750pf on the logic board . Well, my schematic does not show this cap & that there's no actual cap between pin 17 of the IC to Vcc. I also don't see that cap on my board. Anyway, I listen at low volume & needless to say, the whine is beginning to make me whine!! Any ideas before the radio heads back to TT? One last thing, I tested another 544 next to it, & was quiet....my ser # is 544-1618, the quiet rig is 544-1355.Thanks, Kirk