Question about Sony CMT-EP505 CD Shelf System

1 Answer

Unit works from remote only, buttons on it do not. How can I reset the unit?

I own a SONY CMT-EP505. It works only from the remote control. The buttons on the unit are not functioning properly. When you place one of them, it does something but not what it has to do. For example, when I push CD button, it fast forwards the tape. So Ithink it needs a reset. I don!t know how to do it? Can you help me? Regards.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 218 Answers
Re: Unit works from remote only, buttons on it do not....

Look for owners manual at Sony web site. If there is a way to reset then that would be a good place to look. Doing a reset is a good idea. It could clear the "brain" on the unit. If a reset fails to repair then you may have a microprocessor problem. Something else that might be the problem, some units use a voltage "ladder" made of resistors to determine which button has been pushed. If the base voltage or ground is off on the ladder then all the buttons on that ladder will be interpreted wrong. Sometimes even just dirty contacts on the buttons themselves will cause that "ladder" step to be off when it is pressed. Good luck.

Posted on Jan 21, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

2 Answers

How do I operate unit without remote control ?

It won't be easy. The front buttons might not give you all the features. Buy a replacement remote.

Aug 31, 2014 | Sony CMT-NEZ3 Shelf System

3 Answers

Change input to Aux In without remote CMT-NEZ3 Sony

I have not found a way to select Audio In without the remote (and I've tried every combination of buttons I can think of!)

The approved way to select Audio In is to press the FUNCTION button on the RM-SC30 remote that should have been included with your Sony CMT-NEZ3. See to download your manual.

Dec 11, 2009 | Sony CMT-NEZ3 Shelf System

1 Answer


remove knob and use some pressurised air to blow out any scum thats built up. yes a remot would still work.

Jun 02, 2009 | Sony CMT-HPX10W CD Shelf System

2 Answers

Prestting the stations

All of the presets I have encountered in the last years were thankfully simple; you manually tuned the station, then simply pressed and held the desired button until the display was stable (not blinking).

Mar 17, 2009 | Sony CMT-HP7 CD Shelf System

2 Answers

Remote for the CMT-HP7


The remote control for model number Sony CMT-HP7 can be found in the link below.

Sony CMT-HP7 Replacement Remote

Apr 16, 2008 | Sony CMT-HP7 CD Shelf System

3 Answers

Remote control stolen


Please see the link below to view the original remote for this unit.

CMT-HP7 Original Replacement Remote

Mar 27, 2008 | Sony CMT-HP7 CD Shelf System

1 Answer

Sony cmt-hp7 - broken

The unit will attempt an internal reset to start from a known position. If you are hearing mechanical noises, the unit is out of sequence and must be rebuilt. These are not the most straightforward units. If any portion of hte system fails the "startup" sequence, the entire unit will stop. Unfortunately, this may need to see a servicer.

Mar 21, 2008 | Sony CMT-HP7 CD Shelf System

1 Answer

I've lost the remote for the CMT-NE5 and I do not know how can I activate the "MD" FUNCTION

You could try purchasing a 3 In 1 universal remote control unit.
These usually scan to find the matched frequency of your appliance, then you can turn on/off with the remote.
These are however limited, and you may not get all of the functions. As with the original remote as supplied.
Alternatively, contact your local supplier, they should be able to assist you further.
Mike @ Compurepair.

Feb 24, 2008 | Sony CMT-NE5 CD Shelf System

Not finding what you are looking for?
Sony CMT-EP505 CD Shelf System Logo

Related Topics:

279 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio Shelf Systems Experts

The Knight
The Knight

Level 3 Expert

66623 Answers


Level 3 Expert

4518 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Sony Audio Shelf System Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides