Question about Sony CDX-M770 CD Player

1 Answer

The power is off !!

I have been using this player for seven years. When I turned on, it started beeping and continuously open and close the front panel. Now, it doesn't even turn on when I put the front cover (panel).

I tried to fix it and pulled the unit out and looking at the connection of wires behind of the unit but I couldn't figure it out.

I really like this player and I don't wanna stop using this one.
Please help me !!

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 51 Answers

We can help you.Welcome to contact

Posted on Aug 22, 2008

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

My car battery died and all of as sudden I can't get into aux mode. I start in standy, press menu, and the only option is Beep On. Scrolling doesn't work.

Try to open the panel (front) while the power is turned on..look for the tiny hole marked (sometimes) with reset and try to push with a pen to click. Reattached the front panel control and try to check if all the function has gone back.good luck!

Feb 03, 2010 | Kenwood KDC-MP235 CD Player

1 Answer

My pioneer deh-p8450mp is opening and closing/switching on and off contiuously. help

Hey sparrow, sorry you didn't get an answer to this sooner, mine just started doing the same thing. After fidling and dismantling for an hour or so I think I have diagnosed it to being the ribbon cable which comes from the circuit board to the front most control panel is cracked (i.e. the cable that connects to the connectors on the removable face plate) When the panel attempts to open fully the ribbon cable is flexed enough to lose connections making the unit think the faceplate has been removed and so attempts to close...when it closes the connectors retouch causing it to think it needs to reopen....this is a nasty design flaw for a unit that cost me $1500 (admitedly 10 years ago but it was in a box in the cupboard for 8 of those years) !!!! Now any chance I can source this $2 part .....eek

Oct 03, 2009 | Pioneer DEH-P8400MP CD Player

1 Answer

Unit only has power for a few seconds

could be a couple of things..1. issue with your ground connection 2. ventilation

May 29, 2009 | Kenwood eXcelon KDC-X879 CD Player

2 Answers

Deh-p9800bt My screen is gone

I opened the radio and found that the wired ribbon that connect the front display plug to the inside main electronic board was cutted on the place that the ribbon bends when the face plate move in and out to take off the display or put a CD.(It sees like after years opening and closing ribbon makes an edge and break). I called Crutchfield and they brought this phone # for Pioneer replacement parts, Tel. 1-800-228-7221. I called and ordered the part (P/N:XNP7026, FACEPLATE RIBBON CABLE - $24.95) and I installed it, the decks is working perfect! If you have electronic working experience will be easy, if not, buy the part and bring it to an electronic shop. The front connector plug has to be reused. This cable is used on other models like : DEHP6800MP, DEHP7800MP, DEHP780MP, DEHP9800BT, and the DEH980BT. Hope that this help!
Jose Carrasquillo- Puerto Rico

Mar 19, 2008 | Pioneer DEH-P9800BT CD/MP3/WMA Player/Blue...

1 Answer

Opens and closes

there is a ribbon cable thet goes out from use that causes it. Contact duel for a rep part or a service center near you


Nov 03, 2007 | Dual XD-7500 CD Player

1 Answer

Dual XD7600 Head Unit Problems

Sounds like the flexible connector that connects to the drop-down front panel is bad, broken pattern lead.

Aug 07, 2007 | Dual XD7600 CD Player

1 Answer

Door Opens then closes and Powers Off

Try holding down BUTTON [5], then press the RESET button (you'll need a ballpen between the AUTO and SCRL buttons). This worked on the KDC-MP825 (very similar to the MPV8025) when my wife had the same problem this month.

May 21, 2007 | Kenwood KDC-MPV8025 CD Player

2 Answers

Unit powers down when motorized face opens

i also have had this unit for over four years. the exact same thing just happened to me yesterday. i was thinking maybe it is the motor that opens the face. has anyone found an exact solution for this problem yet?

Apr 11, 2007 | Pioneer DEH-P8500MP CD Player

6 Answers

Sony CDX M8800 Front Panel Problem

u need 2 replace the ribbon that goes to the panel to the unit.i had the same problem with mine then i went on to ebay and found the ribbon there (cdx-m8800 repair kit)hope this helps

Dec 17, 2006 | Sony CDX-M8800 CD Player

Not finding what you are looking for?
Sony CDX-M770 CD Player Logo

Related Topics:

153 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Car Audio Receivers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Larry Stiles
Larry Stiles

Level 2 Expert

286 Answers

xxxxxx xxx

Level 3 Expert

4706 Answers

Are you a Sony Car Audio Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides