The tuner is made by Harman. FM radio does not need AGC in the way you describe, as long as the discriminator can lock the carrier it will always decode at the same output level the transmitter modulated it at originally. Read up on the basics of FM radio. If your output level is varying, yet another indication you may have a defective tuner, or maybe a bad connection to the glass antenna.
All Tesla service manuals are free, just create a free Tesla login at tesla.com if you don't have one. Tuner: https://service.tesla.com/docs/ModelY/ServiceManual/en-us/GUID-CA1CFB3C-E27A-4060-A10E-C7CEA69A67B6.html On Wed, Apr 17, 2024 at 2:48 PM Mark Hanson <markehans...@gmail.com> wrote: > Thanks Phil for the reboot info and FM radio options. Another radio issue > I have is lack of AGC automatic gain control (invented in 1928) apparently > not in the Tesla FM radio as I’m periodically twiddling with the wandering > volume. > Say where do they hide the FM radio anyway? > Best regards > Mark > Sent from my iPhone > > On Apr 17, 2024, at 1:28 PM, (-Phil-) <p...@ingineerix.com> wrote: > > > Yes, there are 3 types of reboot: the approximate 5 seconds scroll wheel > reboot, this can be done anytime, even while driving, even with Autopilot > engaged. Just hold until the screen goes black and release > > 2nd type "hard" (or Gateway reboot): Press and hold brake, hold scroll > wheels until you see the Tesla logo re-appear. > > Actual hard: (for 3/Y only) Disconnect the negative terminal of the 12v > battery (will need 10mm wrench) or disconnect the connector for 16v on > newer cars, then lift the outer corner of the passenger side rear seat > cushion, lift out the black styrofoam cube, and disconnect the grey > rectangular connector there until you hear the contactors "clunk", then > immediately reconnect. To do this, you need to release the tilting bail > with a tab, can be done with a fingernail, then the bail will tilt down to > the right and the body of the connector will rise. No need to keep going > any farther once you hear the contactors clunk. Wait 2 full minutes, then > without bouncing slide the negative terminal quickly back onto the battery, > hold it there, wait until you hear the contactors close (clunk CLACK), then > re-tighten the 10mm. (or just plug the 16v battery back in on newer) > > It's normal to need to do the first simple 5 second reboot on Teslas every > few weeks. Doesn't hurt anything and can make a sluggish UI fast again. > The other 2 are rare, but try them in order if you have an issue that the > 1st one doesn't resolve, such as no LTE. > > > > On Wed, Apr 17, 2024 at 10:12 AM Kevin Horton via EV <ev@lists.evdl.org> > wrote: > >> If the Owner's Manual can be believed, the brake pedal is not required. >> Have you tried that reboot without using the brake pedal? I did that a >> handful of times while driving in my early days of Tesla ownership. I >> haven't had to do it for two or more years. >> >> Cheers, >> >> Kevin >> >> > On Apr 17, 2024, at 13:17, Mark Hanson via EV <ev@lists.evdl.org> >> wrote: >> > >> > Hi folks >> > My FM radio drops out occasionally (usually during an “radio moment” on >> NPR) and requires pushing in my 2 balls with the brake peddle for reboot >> which I can’t do while driving (2021 Tesla Y). >> > Rather than dangling a transistor radio from the rear view mirror (like >> I did in a 1964 Beetle many moons ago), has anyone wired in a FM stereo to >> the existing speakers ? The wire harness looks hard to work on, not like >> the cars of yesteryear. Maybe Velcro a Crane radio on the dash? Last time >> (today driving to DC) I got NPR streaming on my iPhone (but runs up my data >> $$ on Ting). Seems like a $55k car should have a working radio even if >> missing AM and a rear windshield wiper… >> > Best regards >> > Mark in Roanoke Va >> >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: < >> http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240417/9c535801/attachment.htm >> > >> _______________________________________________ >> Address messages to ev@lists.evdl.org >> No other addresses in TO and CC fields >> HELP: http://www.evdl.org/help/ >> >> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240417/888498ed/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
