Satellite receiver Topfield. Model TF3000FI

This DVB Digital Video Broadcasting receiver was brought to my shop by a customer and a friend of mine. She said that the receiver was working fine and suddenly there was loss in electricity in the house and when the electricity was restored, the receiver stopped working.

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Mackie Active speaker system amplifier model SRM450.

This is an active sound reinforcement system that was brought to my shop with the problem of no power in the amplifier. This speaker system was used under a heavy load causing the amplifier to shut down and not working again.
When opening the back cover and took the main board power out, I realized the main fuse was blown and it was dark indicating a heavy short in the board.

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Repair a DVD with a door problem. Model ITT DVD2838A

An ITT DVD player was brought to my shop. The DVD player was working fine except when pushing the door button to open it, it opens then it closes by itself then it opens again. Upon taking the cover off, and turned the DVD player on, the door closed normally but the pick up LED disk reader did not come up in position to read the disk. The door opened again by itself and then it closes trying to read the disk again. From experience, this problem is due to two things, either the motor that opens the door is weak or the belt that connects to the opening drum is really loose.

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