Question about Jensen CD3720 CD Player

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Jensen CD3720 CD Player All of a sudden the display unit no longer lights up, I can vaguely see the digits/letters and the volume only reaches 2 which I can hardly hear the music. Please help! Many thanks, Sonia

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Hi Sonia,

There are many internal fuse that controls the flow of current it is being blown so you have to replace the one accordingly.You should do continuity test to find out the which fuse is blown using ohm-multimeter.Check for any burn sign or for the fuse which is getting to heated.That is the defective one you have to replace the one.It will be of this shape.
In some fuse the internal lining will be broken so you can easily find it out.

Jensen CD3720 CD Player

All of - 5f3738c.jpg
The reason why the internal fuse blows out is due to the following reasons.
Make sure power wire is not pinched.
Make sure speaker wires are not pinched.
Install fuse of correct rating and size.

Sometimes The battery and ignition wires are not connected properly. The yellow wire is for the battery and the red wire is for the ignition/ACC.

The volume reaches upto some level and it is not able to supply the required volts because of the defective fuse.
post a comment for further assistance.
Thank you for using fixya have a nice day:-)

Posted on Sep 05, 2010

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Posted on Jan 02, 2017

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I have the jensen cd3720 cd player and it stop playin music and comes back on by it self what can it be that makes the radio do that


Hi there,

Are you losing complete power? Or do you have power, but losing sound only?

Loss of Power:

If you can access the wiring loom of your Jensen, check the RED ignition wire to ensure its secure - this wire is responsible for powering the unit ON (with key ON) and OFF (when key is OFF). A multimeter will be a useful tool to check for power when key is ON.

If the RED wire is fine, then there could be an issue with the power supply on the unit. Check the fuse on the Jensen unit - if ok, then there is a fault in the Jensen unit.

Power, but no sound:

The unit is faulty and will require service (or replacement).

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http://www.the12volt.com/

I would hook ground up to ashtray or other metal. Double check your wiring.

http://www.the12volt.com/info/diagrams.asp

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