Question about Teac AD-600 3-Disc CD Changer
I took the unit apart to remove a stuck CD. The changer mechanism is now working properly, but always displays 'no disc' even though I can see it in place. The motor to spin the CD never starts. I've tried starting it with the traverse limit switch both opened and closed. Both motors read about 11 Ohms and continuity through the harness checks out. I did notice a broken gear tooth on the traverse gear that drives the rack. I restored smooth traverse by moving the gear slightly on the shaft, but the travers unit still stays dead even with the change mechanism moving the CDs around perfectly. Is there a fuse or interlock I might be missing?
If you shut cd draw with no cd in, does the laser lens move up or down at all. if it does suspect dead laser pickup. it is very common for lasers to fail
Posted on Jan 13, 2007
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I see nothing happening after the CD is in place. Also, I don't measure any voltage, to either motor, coming from the control board. Since I had to fix a broken gear, I suspect the original stuck CD jammed one or both motors, and this overheated the motor driver IC. I ordered a replacement driver online for $6. I'm hoping this is the extent of the problem.
We have similar problem in that when instructed to play the display frequently says "no disc", despite removing and re- inserting and trying the other drives. I am not aware that it has been damaged - but several people use it so it's hard to be sure!
It is only about three years old - would the laser heads have gone so soon?
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