Question about Technics Audio Players & Recorders
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Posted on Jan 02, 2017
SOURCE: technics 5 cd changer sl-pd787
Does it show the disc length or any other details? Have you carefully cleaned the lense with a q-tip and some alcohol? Can you hear the laser moving in and out of focus? If you push the laser sled out away from the centre does it move back to the middle when youi put a disc in?
Posted on Feb 29, 2008
SOURCE: I have a Technics SL-MC7
the quickest way to do this if your comfortable with opening electyron componants is to take the top of the unit off. there will be a cover over the disk carousel that has to be removed as well you will be able to remove the disks from there and then replace everything back in the same order. becareful not to wear clothing that will hold a static charge, a discharge on the circuit boards will fry them. also do not touch the optic glass of the laser this will damage it. please rate the solution...thanks
Posted on Sep 21, 2008
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
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