TM200 Service Manual
6.Remove the two screws on the circuit board, you could depart it then.
7.Reverse the board, you could find the ROMs.
To install, reverse the removal procedures.
Caution:
When performing this procedures, be sure to use a grounded wrist band and take other measures to protect against electrostatic charge.
Internal circuit board components become hot during normal use. Make sure they have cooled sufficiently before performing this procedure.
There are 2 ROMs on the board, the one is LOW bye(U10), the other one is HIGH byte(U12), please make sure the ROM be placed to the correct place.
After removing these circuit boards, be sure to protect them against electrostatic charge damage by placing them in an
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