JRC JMR-92 Series Field Service Manual page 527

4.2.2.7 Receiver (NRG-229) Replacement/NTG-3230
[Required Tools]
The tools shown in the following table are required for replacement work.
No Name
1 Flat head
screwdriver
2 Phillips screwdriver
3 Open-end wrench
Before conducting replacement work, turn Off the circuit breaker for the power supply of the
display unit.
Exercise care not to lose bolts, screws and other parts removed from the radar antenna, as
they will be used again in later steps.
Step 1 Remove the cover.
Loosen the four screws and remove the cover. The screws are slotted captive screws.
Use a flat head screwdriver.
Table Required Tools
Size
6 mm
Size #2, Size #3
Width across flats 17
mm (for M10 screws)
Loosen the four screws.
4-307
Appearance
Chapter 4 Replacement procedure