Fuse Checking; Operation Checking - JRC JMA-5312-6 Instruction Manual

9.1.2 Operation Checking

When the system is operating, the operation status (located at the upper right of the screen) is
changing pictures.
If picture freeze occurred, turn off the system and restart the system.

9.1.3 Fuse Checking

Melted fuses are caused by any clear cause. When a fuse is replaced, it is necessary to check the
related circuits even if there is no trouble. In checking, note that there is some dispersion in the
fusing characteristics. Table 9-9 shows a list of fuses used in the equipment.
Location
Radar process unit
(JMA-5312-6/6HS)
Radar process unit
(JMA-5322-7/9/6HS,
JMA-5332-12)
GYRO I/F unit
Operation status
Table 9-9 Fuse List
Parts No. Current Rating
F2 5A
F3 10A
F2 10A
F3 10A
F1 to F4 0.5A
9-6
9.1 Fault Finding
Protection Circuit
I/F circuit PC410
I/F circuit PC410
GYRO I/F circuit PC4201
Type
ST4-5AN1
ST6-10AN1
ST6-10AN1
ST6-10AN1
9
MF51NR 250V 0.5