Had radio on volume set to 29 and when i turned volume up to 30 it shut off and wont turn back on

Maybe a shorted speaker causing the power amplifier inside the radio to shut down or a speaker wire shorted to chassis and last the internal amplifier of the radio cd set faulty by itself... set volume to zero power it off take out the radio cd set; remove the speaker iso plug leaving the power plug only in and power it on if necesary turn again the volume down to zero and wait if it keeps turned on it a speaker problem if it shut itself off again then you go for a repair or a new one

This might fix your problem

Every Android handheld has the same pattern on how to restore or reset the phone back to factory settings. Factory settings means you are wiping the data in the internal storage but not whats on the SD card. See steps below: 1. Turn off the tablet by pressing and holding the power for 30 seconds and tap shut down. 2. Press and hold power plus volume up until an android menu appear 3. Use the volume keys to navigate and option key or power to select. 4. look for factory reset and wipe data 5. restart the device and it should be back to factory settings.

was the radio wired direct or with a cigarette lighter plug? try the RF gain knob and the mic gain knob.If they are wide open does the radio rec.any better? if not you may have a problem with the main IC

Cobra's LTD 29 model Citizen's Band radio features the full 40 channels allowed and a heavy-duty microphone. The radio provides 4 watts of AM radio frequency output with a switchable automatic noise limiter and noise blanker. Other features include Cobra's Delta-Tune function. Making a Cobra LTD 29 hear and receive better involves making changes to the radio's settings, including the settings specific to this brand.
M/F Turn the switch labeled "NB/ANL, ANL, OFF" to the "ANL" position and try the transmission again if noise is affecting reception. "ANL" is an automatic noise limiter function and reduces noise caused by the vehicle's electrical systems and electronics.

M/F Switch to "NB/ANL" to activate the noise blanker, which may also reduce noise if you continue to have problems. It's an RF noise filtration function and will help with ignition noise.

M/F Adjust the "RF Gain" knob by turning it clockwise to increase gain in weak signal areas if you have problems hearing radio traffic.

M/F Set the "Delta-Tune" function to capture a more listenable signal and get rid of adjacent channel noise. Rotate the knob labeled "Deltatune" to the center position for best tuning. Try micro-adjustments to the left or right as well.

M/F Turn the volume up if you still can't hear and as with any CB radio, adjust the squelch if the radio is noisy when there's no traffic. Turn the knob labeled "Squelch" all the way to the left to receive all signals, including noise and turn the control clockwise until the background noise stops. You will be able to hear the strongest transmissions without having to listen to weak signals and noise.
The service manual can be found here

With the vehicle on, turn OFF the radio. Next, Press the Volume and hold the VOLUME knob. You should see LANGUAGE on the display. Scroll the VOLUME knob until you see CLOCK SET. Pres the VOLUME knob and the HOUR will start flashing. Scroll the VOLUME knob to set the hour then Press it to set the Minutes. When you're finished. Turn off the radio, then turn it back on. When the radio is in use, the Radio Station will scroll on the display, then the Artist information, then after a few seconds (20-30), the Clock will display.

Hi, my name is John. Welcome to FixYa. Turn your volume up to MAX, then turn your RF GAIN to MAX. If same, plug in a external speaker in back of radio into the external speaker jack. see what happens. If loud, re-place the speaker in the radio. Let me know how it goes, glad to help you and thanks for choosing FixYa....John

I have a 2006 saturn ion and the radio wont turn on...there is a picture of a phone on my radio display and when you turn the vol up to 20 or so there is a buzzing sound any ideas

Need more information on this if possible.

It may be the speed volume is enabled on your radio, does it fade out when you start to come to a stop? Some vehicles have a speed volume setting in their radios in which the radio raises and lowers the volume during driving conditions, like when your comming to a stop, the volume will automatically lower and during faster driving speeds will rise to a higher volume.

Hope this helps
JD

With me. I pressed the + volume button once from 13 to 14 and it went all the way to 30 ( highest volume) and wont go back down. it also wont let me go to the radio now

hi there are 2 options for this: 1) if its a anlog knob then the AMP inside is gone bad... 2) if its a digital knob then it is preesed constantly and there for raising the volume level try disassemble the system and making the spring knob more efective good luck