I have an optimus Karaoke machine cat. # 32-1163, it had belonged to a friend and he said it made a popping sound when he plugged up the aux. mode and now there is no sound from the internal speakers. all components are working with the exception of sound. Does this machine need the remote to work properly? all volume controls and settins are also on the face of the machine. Can I possibly get my hands on a schematic and repair manual for the piece of equipment?
Check all the power transistor and resistor in the amplifier section, check also the power supply for correct voltage. if all the components are good next step is check the speaker. leaky capacitor makes your amplifier a popping sound output. i hope this may help you... good luck...
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the tray can be jammed or the switch under the lid can be broken
if you can remove the cover and check if the tray is not blocked
after this check you can turn manual the tray out and see the switch under the lid.
check if this is stil in place
put the power back on with open cover and see if everything is ok.
if this not works mail me back
Unplug the unit.
You probably have a brake band thet keeps the reel from free spinning. It's located under the top cover plate of the tape recorder. The band is made of cork. Over the years, it probably just got a buildup of dirt. It can be cleaned off with rubbing alcohol. Don't pull on it, it will snap. The piece you are looking for will be located right under the left reel post.