LG LM-U550A, LM-U550D, LM-U550XLMS-U550_ 3CD CHANGER DVD - Circuit Diagram: {How to reset to Initial Status}
CLICK ON THE CIRCUIT DIAGRAM TO MAGNIFY
To reset to Initial Status
HOW TO CLEAR MALFUNCTION
You can reset your unit to initial status if malfunction
occur (button malfunction, display, etc.).
* Using a pointed good conductor (such as driver), simply short
the RESET jump wire on the inside of the volume knob for more than 3 seconds.
* If you reset your unit, you must reenter all its settings (stations,
clock, timer)
NOTE: To operate the RESET jump wire, pull the volume rotary
knob and release it. If you wish to operate the RESET jump wire, it
is necessary to unplug the power cord.
To know more about disassemble & exploded view; pull up the previous post.