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Alpine cde121 will not power up

Fuses seem ok, wiring seems to be ok. unit will not power up after last time removing it from vehicle.

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: instaling alpine car/cd stereo cda 9807

how do i install my alpine cda 9884 ...on a 92 caddi

Posted on Nov 18, 2008

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SOURCE: alpine cda7969r display problem

Hi trinder,
I fixed my Alpine TDA-7563 with the same problem. My display was completely blank everything else worked. After checking that the LCD display is getting power and everything else in the face that I can think of, I thought maybe the rubber LCD contacts were squeezed down or something and not making proper contact, so I just pushed it back onto the board and pressed.
This was at night, so I had an external lamp and noticed to my delight that the display was in fact working, nothing is wrong with it.
I am embarrased to say that as a technician I forgot that an LCD display needs a backlight, duh.
So a simple connectivity test on the 2 lamps shows that they are both blown.
I have to source them at my local electronics store, I measured the power supply to them as 12Volts, so it is just a matter of getting ones with the right dimensions and bright enough.
Hope you have the same problem, then it will be an easy fix for you.
Good luck,
Ramesh

Posted on Dec 14, 2008

  • 1 Answer

SOURCE: removing TDM-7545 unit from dash

i cant seem to remove the unit from the dash ? thanks zac

Posted on Jan 17, 2009

  • 74 Answers

SOURCE: intermittent power to head unit

no inline fuse? I usually just slip the wire inside the battery connector, remove connector lay wire across battery with stripped end running up the side of the battery terminal place connector down on terminal and wire, tighten connector back up.

Posted on Feb 22, 2010

kenw392
  • 2226 Answers

SOURCE: how do you remove the fuse to these alpine head

a pair of needle nose pliers should work.

Posted on Nov 10, 2010

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1 Answer

Installed Alpine CDE-121 in May, has worked great up until now. System works, but no sound comes out


Some models of some vehicles have a power amplifier that is separate from the head unit. You did not specify what you have your Alpine installed in but you may find the "no sound" issue involves a separate power amp.

Nov 17, 2013 | Alpine CDE121

1 Answer

There is no sound coming from the speakers


maybe you have your wires crossed and make sure you have the volume up.

Jan 21, 2013 | Alpine CDE121

1 Answer

Out of no where the power to driver side door is gone including locks,windows and mirriors, i checked the fuses under hood and in fuse panel but seem to be ok


You don't list what your vehicle is but you need to check all of the wiring at the switch at the drivers door. There may be a fuse panel inside your vehicle depending on what you have. You may have to remove the door panel to do so. Should have power to the switch panel. If not you need to trace the wiring back and see if you can find a bad spot in the wire. It could have just disconnected from closing the door over time.

May 15, 2011 | Chevrolet Silverado 1500 Cars & Trucks

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My brake lights do not work everything else does replace flasher unit and brake light switch checked all fuses and wiring all seem good on a 97 eclipse


If lights don't work, they either have no power, or no return earth. Therefore, remove a stoplamp globe and measure the voltage present in the globe socket. Next with a mutimeter, or battery powered light circuit, check that the globe sockets are in fact earthed to the frame.. If the earth is ok, and there is no power present, then you have a break in the wiring between the stoplamp switch and the rear of the vehicle.

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1 Answer

Intermittent power to head unit


no inline fuse? I usually just slip the wire inside the battery connector, remove connector lay wire across battery with stripped end running up the side of the battery terminal place connector down on terminal and wire, tighten connector back up.

Feb 21, 2010 | Alpine CDA-9805 CD Player

1 Answer

Alpine TDA 7563 loses presets when vehicle is


You don´t connect correctly the wire for the constant power suply that´s why the memories don´t stand still,always be a yellow one you need to connect to a direct power suply,good luck

Mar 14, 2009 | Car Audio & Video

1 Answer

Removing TDM-7545 unit from dash


i cant seem to remove the unit from the dash ? thanks zac

Nov 26, 2008 | Alpine TDM-7545

1 Answer

I have an Alpine Model CDM-9821. I just bought another vehicle and want to install my alpine in it. I have all of the wiring hooked up properly but am unable to get my unit to power up. I have 12.5...


did you use an installation harness? you should have the following when you test-
red wire-12v only with key on
yellow wire-12v at all times
reverse your test light to check the ground wire should be 12v with test light hooked to pos

Jun 20, 2008 | Alpine Car Audio & Video

1 Answer

Blown fuses


This is a sign the you have poor voltage regulation. Which may mean that you are taxing the electrical system of your vehicle. I would suggest you adding a secondary electrical supply for you audio system. This can be done by adding an extra alternator and voltage regulator and battery supply. This will allow you to drive your audio system without having it (power supply) split between the vehicle and the audio system. The fact is your system is drawing to much current for the unit and your vehicle. You are blowing the 20-amp fuses which means the the amp is creating a currnet draw which is past the rated value of the fuses, which if done too many times could damage the power amp components in the unit. I would also check the ohmage reating on the speakers connect to the unit since you may have the wrong impedance which may also cause excessive current draw and actuate some sort of overcurrent protection.

Aug 31, 2007 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

3 Answers

Newly Installed Car CD Player won't power up


When you see this problem, it usually means you have power on your deck's constant power wire (usually yellow) but no power on the accessory power wire (usually red). The accessory power wire is the one that sends voltage to the deck when the key is turned on. Usually this means that the red wire is either connected to the wrong vehicle wire, or that the vehicle's radio fuse is blown. As a last resort, you can disconnect the red wire from whatever it's connected to, and re-attach it to the same connection as your yellow wire. This should allow the radio to power up, but it won't turn on and off with the key-switch; you'd have to remember to turn it off or remove the face when you leave the vehicle, or you may drain the battery. Alternately, you can extend the red wire to a different source of key-switched voltage. Depending on the vehicle, you may be able to find this behind the cigarette lighter, at the key switch itself, or at the fuse box.

Jun 07, 2007 | Pyle PLMRA420 Car Audio Amplifier

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