JRC JMR-92 Series Field Service Manual page 262

Step 2 Open the T/R control circuit board cover.
Remove the cover on the right (starboard) side. Loosen the four screws (M4) to open the T/R
control circuit board cover to the front.
Step 3 Replace the T/R control circuit board.
Remove the cable connected to the T/R control circuit board and the seven screws (M4) to
replace it.
Set the DIP switches and the jumper pins on the T/R control circuit board to the settings for
NKE-1130.
NKE-1130 (30 kW, S-band, 2 units, AC motor)
• Jumper pin settings
Jumper pin
J92,J93,J95,J96: 1-2 short circuit
After replacing the T/R control circuit board, assemble the unit in the reverse order of the
disassembly procedure. Do not forget to tighten the bolts or screws, and make sure that the cables
are connected.
Chapter 4 Replacement procedure
Loosen the four screws.
• DIP switch settings ( indicates a switch.)
SW2
ON
1 2 3 4 5 6 7 8
4-42
SW1
ON
1 2