Question about Sony D-NF340 Portable CD Players

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G-Protection i lost my manual and forgot how to turn on G-protection. how do you turn it back on??

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Re: G-Protection

Here is the link to the manual; Check page 1 - just left of centre "changing optional settings" Hope this helps :)

Posted on Jul 15, 2007

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How to fix my stereo thats saying protect

Disconnect the loudspeakers, if this solves the problem, one or both loudspeaker is in short circuit, if not the amp is broken and you need to have it serviced. If it is happening only when listening at high volume, turn the volume down ;-)

Jul 25, 2012 | Samsung Personal CD Players

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I Lost the dam instruction Guide and I cant figure out how to turn it on... It pisses me off that yall cant make one online! So please tell me how to turn it on...


unfortunately, the service manual for your Memorex MD6451R Personal CD Player is not available anywhere online. The manufacturers of this Unit did not make it available. I went further searching and couldn't find any.

I would suggest you contact the manufacturer of your Memorex MD6451R Personal CD Player via phone or e-mail and request for the service manual from them. They might give it to you or direct you to a dealer where you can get the service manual.

This is the best you can do to get the service manual you are requesting for.

Also there are similar manual for Memorex Cd player that you can use as a guide tool.

Good luck.

May 30, 2011 | Memorex MD6451R Personal CD Player

1 Answer

Skips with g protection on

There's only so much ability to cache the data to make up for data loss through movement or vibration. Does it skip while completely motionless?

May 15, 2011 | Sony Walkman D-EJ360 Personal CD Player

1 Answer


If your stereo is showing the protect display, it is an indication of a power shorting. This protection is to avoid serious circuit burnout and could be in the power output stages of the set. You will need to open and check for short in the output drives, the preoutput stages, the speakers or even the protection circuit amp.
It is important to address and check these sections with a votage check, elimination process too confirm the part. this may be a little tough and diffcult unles it shows easily on a continuity test. Helpful. Good day

May 31, 2010 | Kenwood Personal CD Players

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We got a Jensen Audio CD-60 player this past Christmas as a gift. So we do not know when or where it was purchased. The disk in it will not turn as it should and there is no sound.. We are using a Power...

Check inside for packing tape to hold the eye in place during shipping or transit, and remove any tape or plastic tabs for the players protection that may be there. Check the player for a time \ date setting, may need the time \ date set. Try another disk not CD\RW but a store bought CD. Try battery's and see if running it on battery's will straighten it out, Last but not least - BE SURE YOUR POWER ADAPTER IS SET FOR THE PROPER POSITIVE - NEGATIVE POLARITY TO THE PLAYER. Look closely at the plug in on the player for a symbol with a circle and a positive and negative sign and check the adapter to match.

Jan 30, 2010 | Jensen CD-60 Personal CD Player

1 Answer

CD player used for reading books only

Thank you for responding however I solved the problem myself. I returned it to Best Buy where I purchased it and talked to the tech people. They said that the units are almost obsolete as they`ve been taken over by the Ipod or some other electronic device, The kids use them for music, which is fine, but it doesnt solve my problem. I`m almost blind and I love to read and audio books are my salvation. According to the tech, this unit and any other on the market do not have the feature I`m looking for, so I`m just going to have to live with it. Thats not an acceptable answer but what choice to I have. I went to 6 stores looking for a unit and almost without exception, they all had about 1/2 doz. of these players in inventory and they all had the same features or lack of.
Thanks again gentlemen.

Jan 13, 2010 | Insignia Portable CD Player with Skip...

1 Answer

Need GoGear 1 GB MP3 player instructions

The manual is available from Philips website. I can't give you an exact link, because there are dozens of 1GB GoGear's.

Feb 19, 2009 | Philips Sport Personal CD/MP3 Player

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