Question about Technics SL-MC7 110-Disc CD Changer
The disc changer ,u plug it in and it s display reads checking disc.and wont do anything elsce 2.the first time i could use the disc phone pad ,then it read error. 3.i have never used this disc changer so i want to find out if its not functioning right,if i should or if its worth having it look at an by wom should i or do u have some one you could reffer me to thank u
The problem is likely the carriage drive belt. The player is well over 10 years old so the belt gets stretched with use. Then it is unable to transfer power for moving mechanisms.
If you feel comfortable about opening the cover using proper electrical safety procedures then you can observe what the carriage is doing upon turn on. Unplug the player, remove the cover by unscrewing four fasteners (I think, but you can easily figure it out), plug in and power up. The carriage should go through a positioning calibration and disk checking sequence (simply, it moves out of the home position, travels across the player and repositions itself to await front panel input).
Yours probably doesn't so look at the belt on the top of the carriage. If it is off the drive wheels, remove electrical power, then simply put it back on, power up, and recheck.
If the belt is spinning on the wheels and seems loose then it needs replaced. Fortunately, here is an inexpensive and attainable replacement courtesy of another FixYa poster
Also, a clean up and lube of the mechanisms would be a good thing to do. That takes some technical know how to clean without damaging and applying the correct lube in the right amounts to the appropriate mechanism components. Some general references are available in electronic service books or online. I should probably launch a site!
Otherwise, without knowing the conditon of other components in the drive assemply, a service manual is required to proceed with further troubleshooting specifically for the player.
Hope that the K.I.S.S. approach helps you enjoy your player again.
Posted on Aug 06, 2009
Problem: The Sl-MC7 C.D. player will only play a C.D. in the single slot, but it would not play a C.D. in slot one to one-hundred and ten. When ever you are tring to play a C.D. in slot one to one-hundredand ten, the machine will try to locate a C.D. but the screen will displays NO Disc. I repair audio and video equipment. Solution: The solution to this problem will need someone who knows how to use a soldering iron, because some soldering is necessary. The machine have a cyristal clear L.E.D. which is located on the top of the transport. The transport is the piece that plays the C.D.,s. The L.E.D. looks like a little flashlight bulb. Below the L.E.D. there is a black part which is mounted on the same P.C. board but it is located at the bottom. The black part is use for receiving the light from the top L.E.D. The machine locates a C.D. by moving the transport with the L.E.D. over the C.D.s in the slot. When the machine perfrom this process, the C.D.,s in the slots blocks the infarad-light which prevents the infarad-light from intering the black part-the receiver which is mounted on the same P.C. board but which is located at the bottom. When the C.D.,s in the slots blocks the infarad light, this blocking of the light sends a signal to the C.D. player computer. This is how the machine knows where to locate a particular C.D. I had this problem with a machine that I had purchased I had to scrape the copper trace at the L.E.D. connecting point and also I had to carry-out this same process where the black part infarad recerving sensor which is located at the bottom of the machine. I also had to carry-out the same process on a P.C.board which is located at the bottom about half inch toward front left from the infarad receiving sensor. MAKE SURE YOU REMOVE ALL ELECTRICAL POWER FROM GOING INTO THE MACHINE.
Posted on Mar 17, 2008
Buddy, you gotta take it to the Company Service Center.
Posted on Sep 25, 2006
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