Question about Sony CDX-M770 CD Player

Speaker issues Ok I hooked up this stereo and everything was fine until I put in a CD and then it only played out of two speakers went back to radio all 4 worked cd only gets two i am at a loss.

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Brian Neathery

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156 Answers

Disconnect whatever wire is connected to the blue wire behind your head unit. Re-connect it to the blue/white wire, instead.

Posted on Jun 21, 2007

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New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.

Just a thought - the usb provides a digital signal which carries information about how the signal is to be processed; mono, stereo, surround sound stereo, etc.
If the mp3 music file was only recorded in 2 speaker stereo perhaps that is how it plays back.

Admittedly the radio signal is stereo and yet it plays on four speakers but unless it is a DAB radio it is analogue and maybe that makes a difference.

Perhaps there is an internal electronic fault with the digital processing part of the unit. I suggest reading the handbook again and then perhaps contacting the seller.

Mar 28, 2016 | Alpine Car Audio & Video

1 Answer

Hi, I just got a new stereo for my Ford f150 truck and I had it all put in and working until I noticed that when I turn on my pickup and the stereo has me set the settings the way I want them so I set the...

Well, I don't know what exactly you had hooked up but, the yellow wire from the Pioneer connects to the vehicle battery wire(light green) behind the radio, the red wire goes to the vehicle's accessory wire(yellow/black).There doesn't seem to a ground wire listed for this vehicle behind the radio so, you have to ground the radio to chassis (some metal behind the radio).
This should handle your power issue.

LF speaker(+) green
LF speaker(-) Black/white
RF speaker(+) white/red
RF speaker(-) black/white

Sep 21, 2012 | Car Audio & Video

2 Answers

I just hook up an after market cd player up in my 2001 chrysler 300m and the radio play but the cd player want play, it turns on and everything just no sound. do anyone have any ideas of what i did wrong?

DOES THE RADIO PLAY? HERE ARE THE FACTORY WIRING COLORS FOR THE RADIO HARNESS, RECHECK YOUR WORK. IF U FIND NOTHING THEN IF THE RADIO PLAYS THE CD PLAYER IS DEFECTIVE, IT HAPPENS BELIEVE ME.

2001 Chrysler 300M Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Pink
Car Radio Accessory Switched 12v+ Wire: Red/White
Car Radio Ground Wire: Chassis or Strap
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: Orange
Car Stereo Antenna Trigger Wire: Orange/Red
Car Stereo Cell Phone Mute Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Located under the rear deck in the trunk.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Dark Green
Left Front Speaker Negative Wire (-): Brown/Red
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Dark Blue/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown/Yellow
Left Rear Speaker Negative Wire (-): Brown/Light Blue
Right Rear Speaker Positive Wire (+): Dark Blue/White
Right Rear Speaker Negative Wire (-): Dark Blue/Orange

Nov 05, 2009 | 2000 Chrysler 300M

1 Answer

Left front and rear speakers sound muffled when playing cd's

after you play a cd while the cd is playing go into your audio settings and adjust theres settings foe each part on a stereo if u set the audio for AM//FM then play a cd the stereo changes to the cd settings

Jun 01, 2009 | Jensen Car Audio & Video

1 Answer

Only 3 speakers play with ipod all other is ok

Are you playing your ipod through the stereo with a cable in aux mode? If so check your fader and balance settings when in aux.
there would be no other reason except for speaker wiring check and make sure there is no auxiliary wiring that may not be hooked up.
if it's not settings, then it's wiring, unless your stereo has an internal problem in the auxiliary circuit.

May 27, 2009 | Apple iPod MA446LL/A MP3 Player

1 Answer

Only door speakers have sound on the cd mode

the amp requires a 12 volt power constant, and a 12 volt "on" signal. you prolly have the 12 v "on" hooked up to the car stereo's antennae remote, meaning your amp gets power when the radio is on, cuase the radio is sending a signal to the amp (thinking that it is sending a signal to the antennae to raise)

you do have one of those collapsable antennas, right?

Mar 12, 2009 | Clarion VRX745VD Car DVD Player

1 Answer

No sound from cd but stereo works no problem

there are 2 blue wires........dont hook the blue to blue!!!!!!!!!!!!!!!!!!!!!! hook blue to the blue/white wire!!!!!!!!!!! problem solved. so e-z huh? lol i did the same thing.

Feb 16, 2009 | Sony CDX-CA700X CD Player

1 Answer

Problems with amp or stereo

check out www.installer.com
this site has your stereo's wire diagram.

The amp wires only go to the rear output (rca jacks on back of cd player)
It wont work right if it is connected to the front outputs on the back of cd player

Jan 16, 2009 | Alpine CDA-9856 CD Player

1 Answer

I have a simple stereo speaker from Radio Shack. Small metal case with two wire input latches. Each box has two speakers in side. Both speakers boxes went out at the same time. I wasn't there when this...

You need to measure across the speakers themselves n ot the crossover (cap). If these are 8 ohm speakers, an ohm meter will read about 6 or so. That is because both impedence and resistance use the same measurement. With an ohm meter you are measuring resistance. The speakers are rated using impedence.

If both speakers are open (measure infinity), I would suspect a problem with the stereo that caused them to go open. With the stereo on and playing something (radio,cd , or whatever) use a DC voltmeter to measure between the speaker terminals (Red/Black). You should read essentially 0 no matter what the volume. If you read any DC more than 3/4 V, the problem is with the amp section of the stereo.

Dan

Jul 18, 2008 | Audio Players & Recorders

1 Answer

Plays radio not cds

You may have Power antenna and amp remote turn on wires switched. Your system may be looking for turn on signal from radio and only gets it when am or fm is on because power antenna wire is hooked up instead of amp turn on signal.

Jan 18, 2008 | Kenwood Sirius KDC-MP522 CD Player

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CDX-M770 CD Player

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New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.

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no sound from speakers in radio ok for cd

Apr 19, 2011 | Sony CDX-M770 CD Player

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Tuner unit in my CDX-M770 is out of order. FM signal is fading out after 15 min in tuner unit TUX201 on pin no. 10 marked as "MPX". I have service manual, but it does not contain schema of unit TUX201 "TUNER UNIT". Could You send me schema of this unit and printed wiring boards as well as could you help me in solving this problem?

Sep 11, 2010 | Sony CDX-M770 CD Player

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Sony CDX L450, No sound from radio The CD parts of the unit work correctly. Have swapped for another Radio, which also works correctly. Have used the re-set button but still no sound from radio. Any help much appeciated

Feb 18, 2009 | Sony CDX-M770 CD Player

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Speaker issues Ok I hooked up this stereo and everything was fine until I put in a CD and then it only played out of two speakers went back to radio all 4 worked cd only gets two i am at a loss.

1 Answer

Brian Neathery

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Related Questions:

New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.

Hi, I just got a new stereo for my Ford f150 truck and I had it all put in and working until I noticed that when I turn on my pickup and the stereo has me set the settings the way I want them so I set the...

I just hook up an after market cd player up in my 2001 chrysler 300m and the radio play but the cd player want play, it turns on and everything just no sound. do anyone have any ideas of what i did wrong?

Left front and rear speakers sound muffled when playing cd's

Only 3 speakers play with ipod all other is ok

Only door speakers have sound on the cd mode

No sound from cd but stereo works no problem

Problems with amp or stereo

I have a simple stereo speaker from Radio Shack. Small metal case with two wire input latches. Each box has two speakers in side. Both speakers boxes went out at the same time. I wasn't there when this...

Plays radio not cds

Not finding what you are looking for?

CDX-M770 CD Player

New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.

Open Questions:

no sound from speakers in radio ok for cd

Sony CDX L450, No sound from radio The CD parts of the unit work correctly. Have swapped for another Radio, which also works correctly. Have used the re-set button but still no sound from radio. Any help much appeciated

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Speaker issues Ok I hooked up this stereo and everything was fine until I put in a CD and then it only played out of two speakers went back to radio all 4 worked cd only gets two i am at a loss.

1 Answer

Brian Neathery

1 Suggested Answer

6ya staff

Add Your Answer

Attachments: Added items

Related Questions:

New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.

Hi, I just got a new stereo for my Ford f150 truck and I had it all put in and working until I noticed that when I turn on my pickup and the stereo has me set the settings the way I want them so I set the...

I just hook up an after market cd player up in my 2001 chrysler 300m and the radio play but the cd player want play, it turns on and everything just no sound. do anyone have any ideas of what i did wrong?

Left front and rear speakers sound muffled when playing cd's

Only 3 speakers play with ipod all other is ok

Only door speakers have sound on the cd mode

No sound from cd but stereo works no problem

Problems with amp or stereo

I have a simple stereo speaker from Radio Shack. Small metal case with two wire input latches. Each box has two speakers in side. Both speakers boxes went out at the same time. I wasn't there when this...

Plays radio not cds

Not finding what you are looking for?

CDX-M770 CD Player

New Alpine radio, went through setup, plays fine on radio/tuner on all four speakers, but ipod (USB port) or internal CD only plays on front speakers.

Open Questions:

no sound from speakers in radio ok for cd

Sony CDX L450, No sound from radio The CD parts of the unit work correctly. Have swapped for another Radio, which also works correctly. Have used the re-set button but still no sound from radio. Any help much appeciated

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