JRC JMR-92 Series Field Service Manual page 519

Step 2 Remove the power supply circuit board.
After having removed all the cables connected to the power supply circuit board, remove the
fixing screws (four M4 screws) and remove the power supply circuit board with the attached heat
radiation plate.
Step 3 Replace the power supply circuit board
Remove the fixing screws (nine M4 screws) and remove the power supply circuit board from the
heat radiation plate. If the thermal conductive pad on the heat radiation plate is torn, replace it with
the sheet that comes with the replacement power supply circuit board. After having replaced the
power supply circuit board, reassemble the unit by following the disassembly procedure in the
reverse order. Do not forget to tighten the bolts or screws, and make sure that the cables are
connected.
Remove the four screws.
Remove the nine screws.
Thermal conductive pad
4-299 Chapter 4 Replacement procedure