Question about Sony CMT-NE3 CD Shelf System
I have a Sony CMT-NE3 stereo and I need to access the MD input so I can plugin my computer's headphone jack (and use it for my iPod). I don't have a remote to access the MD input though, which is what is required (according to the manual) to access this function. I also tried programming a universal remote, but it didn't offer this button either. Is there a way I activate the MD input without the remote? I'm not opposed to opening it up and fiddling with the circuitry if that is the solution.
Sony CMT NE3. A solution to access MD/AUX function without remote.
If you accept to lose the function Tuner (or possibly CD but not tape) you could be interested with this method. Personally, I never use that function on this system. The idea is to feed the Aux input into the tuner input of the IC 302 ( a bd 3881). So, you select the tuner and you hear the Aux input. It works quite good (the display shows "FM" but it's not too much annoying...). You can reach of course the bass-treble etc. settings but be aware that it's not so easy: you will have to work with very small resistors SMD (about 1*2 mm) but, fortunately, only to take them away. It's easier.
You need a solder iron for unleaded soldering, a big lens, some classical tools and not to be blind.
You can get the service manual onhttp://elektrotanya.com/sony_hcd-ne3.pdf/download.html
But it's not really necessary : the scheme pictures enclosed come from this site. Please, look at them.
Ready? First, take off the rear cabinet (many screws...).
You will have to take off 4 resistors - R116, R117, R216, R217- and set two wires on the main board, located on the left side, under a metallic cover you need to take off (2 big solderings). The PCB is of high quality and the resistors are well indicated. I hope my pictures will help.
Take heart! You will make it easily better than me; my wires are a bit damaged!
Questions : why is it impossible to do the same with tape ? Because the tape input on the IC 302 is not equivalent with the tuner, cd, and aux inputs (there is an extra preamplifier).
Don't pay attention at the IC302 two wires you can see cut on the picture. I thought first it was necessary to isolate the Aux input from the IC. It's not necessary.
Enjoy your new Aux input without remote (and try to forget the tuner...)!
Alain G.From France
Posted on Aug 14, 2016
Same problem did u figure it out?
Posted on Apr 26, 2011
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Posted on Jan 02, 2017
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