This Bose CD player was not working the FM/AM radio is working fine the only issue is when a CD is put into the player it says the CD can't be read/ Error. The reason why is over time the laser gets a bit weak to make the laser strong again you need to increase the voltage to the laser head this can be done by adjusting the variable resistor clockwise just a bit until it gets the correct voltage to adjust the laser right on the CD.
HOPE this helps.....
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