Question about Sharp XL-MP130 CD Shelf System

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My sharp XLMP 130 all of a sudden started blinking red four times and then one long one - nothing works??

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The problem is with the "power on" relay (RL841) located on the power supply board. Unplug the unit and take off the side panel and top cover. Remove the screws to remove the CD changer. There is a small black rectangular relay just below where the AC cord is soldered onto the PC board. Carefully remove (actually break it off carefully and gently & throw away) the plastic top housing of the relay. Plug in the unit and with a pencil or stick, manually actuate the coil armature while pressing the power on button on the front of the unit. I can almost assure you your unit will return to normal operation. Put it all back together and you're done. The blinking red 4 times followed by a long pulse indicates a power failure. The start up capacitor had drained and couldn't provide enough voltage to pull the relay coil in all the way.

JP

Posted on Feb 20, 2011

  • Kkorhan May 21, 2011

    Thanks for the answer but i still have the same proble. I did exactly what you have instructed and it got turned on, and started working properly. However when i turned it off, it didn't turn on again, giving the same blinking. I'm curious if it is the relay or the capacitor. Any ideas? Also, i may or may not have damaged the coil while trying to open it up (unlikely but possible). Thanks for the answer

  • charlee1a Jun 26, 2011

    Mine does the same thing. That relay applies power to the main power supply by making the AC line connection to the fuse. If you look at the relay, you see 4 terminals that are soldered 2 and 2, this is your normal open contacts of the relay that are closed when the relay is activated. The power on circuitry which is always 'on', that's why the pushbutton turn the thing on, is not functioning properly due to a surge or transient that has gotten into it. If you want the radio to work, making sure the radio is UNPLUGGED, just jumper across those 4 terminals on the relay mentioned above, plug it back in, and the power on button should run it OK. Mine did at least.

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