How to Change the ROM in a Pro-Lite PL-M2014R

Disclaimer. These instructions are produced by trial and error and do not have any guarentee or warranty conveyed with them. Note that opening your unit may not only be potentially dangerous to yourself and the unit, but you may also be voiding your sales warranty. Proceed at your own caution - you assume all risk.

Step One

Unplug the unit and turn it face down.

Step Two

Using a #1 Phillips screwdriver, gently unscrew the end screws counterclockwise and remove each side face plate. [Remove End Covers]

Step Three

Slide the protective LED cover out. [Slide out the protective cover]

Step Four

Gently press on the circuit board at the right end (non-power recepticle side) until you get the dual circuit boards to slightly come out the left end of the unit. [Push out the circuit boards]

Step Five

Turn the unit over, and examine the back of the dual boards board.

Ground yourself for static discharge before removing the old chip. Using a screw driver, pop out the ROM (located between the Zilog Z80 CPU and the UMC 9744S chip).

Step Six

Ground yourself before playing withthe new chip. Straighten the pins on the new ROM, and insert it with the notch facing in the direction as the notch in the socket. It should seat in the socket with a slight pop. [The New ROM]

[Notch Up] [Insert New ROM Notch Up] [Pop in ROM]

Step Seven

Slide the protective plastic cover back on and screw the ends on again.

Step Eight

Plug in your unit and see if it works.

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