20 Most Recent Alpine MRD-M501 Car Audio Amplifier Questions & Answers

turn off all the settings on the amp for (example, sub ,comp, lpf, etc put them all on the off position and then turn off your car remove your face plate and then try it agin it worked for me. but dont turn up the settings to loud the subs might nit be able to handle all the power thats y it does that 

Well it sounds like the safety switch is turning on. Which means it turns off. If you could clarify that would be awesome and i'm sure i or someone else could answer you better

THAT USEUALLY MEANS UR AMP IS WAY 2 POWERFUL FOR UR SUBS

Try a different input source. I have had this happen before and the easiest way to diagnose the root of the problem was to take a home CD player out to my car and use the outputs to power the amp. If the amp works, move upstream to the RCA wires (unplug them from the back of your head unit and plug them into the home CD player). If that works, you know the stereo isn't putting out a signal. Good luck!!

most likely when you paired your phone you did the standard discovery mode however on some model phones especially the Nokia you might have to force pair it and you can find that information on the menu settings on the bluetooth module, is it the BT-200,300,350,or 400?

Hello drmer17,

You do not say which Alpine head unit you are trying to use Imprint to adjust. If the receiver has the Ai-NET input and you are using Alpine's KTX-H100 tuning kit, make sure the Imprint crossover switch setting matches up with your speaker/subwoofer configuration. Also, I'd check the cables and remove and reseat them. Try switching the left/right channels and measure again. If the problem then switches to the right front speaker, you probably have a defective Imprint.

Hope this helps.

it may be the fuse

More info needed. It's like asking how to completely disassemble a car and expecting us to do everything for you. Please take some time to do a bit of research on your part so that we can better assist you and not have to work hours to answer your question.

Disconnect the speaker wires from the amp, then try it again. If the error message doesn't appear, try connecting the speaker wires back to the amp one by one.

The error message is due to some sort of overcurrent in the amp. If the error does not go away when the speaker wires are disconnected, the issue is most likely with the amp itself and will need professional repair.

Hi. If you shorted (touched) the speaker wires together, or let them touch the chassis of the car, then it may have locked out. Just turning the amp off and back on will fix this, so it sounds like you have done damage to it. Most amps have a speaker relay which gives a click sound when you turn on. If there is no click, then it may have a power supply failure.

Mark

OK, It looks like you may have an internal problem. I must say from the begining if you do not have a background in electronics take the unit to a qualified service center. Now it sounds like you could have a power supply problem if you have power coming in onpen the unit and with the use of a schematic find the main voltage rail and test from there each test point and make sure it matches the schematic value. Look for burnt circuit tarces nad if you find the remove them and jumper with re-trace wire.

One of the parts went bad, and you need to take it into the dealer. The way Alpine's error codes work are very vague. E-3 could mean the psu fried, a resistor went bad etc.

1. Mechanical Issue: There might be a mechanical problem with the disc drive or the eject mechanism. It's possible that a part is jammed or not functioning correctly.
2. Dirty or Damaged Disc: If the disc is dirty, scratched, or damaged, the player may have difficulty reading it and thus not ejecting it properly.
3. System Error: There could be an internal error within the player's software or firmware causing it to not recognize the disc properly or to malfunction when attempting to eject it.
4. Power Issue: Sometimes, power-related issues can affect the functionality of electronic devices. Ensure that the player is receiving adequate power and there are no loose connections.

Here are some troubleshooting steps you can try:

• Turn off the player and then turn it back on to see if it resolves the issue.
• Try ejecting the disc using the manual eject button (if available). This button is usually a small pinhole near the disc slot. You can insert a paperclip or a similarly sized object into the hole to manually eject the disc.
• If possible, try using a different disc to see if the problem persists. If other discs work fine, then the issue may be with the original disc.
• Check for any visible obstructions around the disc slot and remove them if present.
• If none of the above steps work, you may need to contact Alpine customer support for further assistance or consider taking the player to a qualified technician for repair.

Se o Bluetooth do seu Alpine CDE-W235BT parou de funcionar ap?s uma falha durante a atualiza??o, pode haver algumas etapas que voc? pode tentar para resolver o problema: 1. **Reinicie o Aparelho:** - Desligue o r?dio por alguns minutos e ligue-o novamente. Isso pode reiniciar o sistema e resolver problemas temporariamente. 2. **Restaurar as configura??es de f?brica:** - Consulte o manual do usu?rio para descobrir como realizar uma restaura??o das configura??es de f?brica em seu Alpine CDE-W235BT. Isso pode resolver problemas causados por configura??es incorretas. 3. **Verifique a vers?o do firmware:** - Se poss?vel, verifique a vers?o do firmware do seu Alpine CDE-W235BT. Se houver uma vers?o mais recente dispon?vel, considere atualizar novamente o firmware, seguindo rigorosamente as instru??es do fabricante. 4. **Remova Dispositivos Pareados:** - No menu Bluetooth do r?dio, remova todos os dispositivos pareados anteriormente e, em seguida, tente parar novamente. ?s vezes, problemas de conectividade podem ser resolvidos removendo e pareando novamente os dispositivos. 5. **Atualiza??es de Software:** - Verifique se h? atualiza??es de software dispon?veis para o seu Alpine CDE-W235BT no site do fabricante. Caso existam, siga atentamente as instru??es para realizar a atualiza??o. 6. **Contate o Suporte T?cnico:** - Se as solu??es acima n?o resolverem o problema, entre em contato com o suporte t?cnico da Alpine. Eles podem fornecer assist?ncia espec?fica para o seu modelo e orienta??es adicionais para resolver o problema. Lembre-se de que mexer no firmware e nas configura??es do dispositivo envolve riscos, e ? sempre recomend?vel seguir as instru??es fornecidas pelo fabricante para evitar danos permanentes ao aparelho. Se voc? n?o se sente confort?vel fazendo isso por conta pr?pria, procurar ajuda profissional pode ser uma op??o.