JRC JMR-92 Series Field Service Manual page 231

Step 3 Remove the fixture holding the magnetron.
Remove the eight screws (M6) to remove the fixture holding the magnetron. The screws cannot
be removed from the fixture, so loosen the all eight screws and remove the magnetron together
with the fixture.
The magnetron is held by a hook, but be careful not to let it fall.
Use a non-magnetic screwdriver. If the magnetron comes into contact with any metal (tool),
its performance may deteriorate.
Step 4 Install the new magnetron.
Install the new magnetron together with the fixture and tighten the screws to hold the cables.
Follow the removal procedure in the reverse order.
Do not forget to tighten the bolts or screws, and make sure that the cables are connected.
Remove the magnetron.
Remove the yellow cable.
Loosen the eight screws.
4-11 Chapter 4 Replacement procedure