Furuno 1943C-BB, FURUNO MARINE RADAR manual Replacement of the fuse, Replacement of the magnetron

7. MAINTENANCE, TROUBLESHOOTING

7.2.2Replacement of the fuse

The fuse on the power cable protects the equipment from reverse polarity of the ship’s mains and equipment fault. If the fuse blows, find out the cause before replacing it. Use the correct fuse. Using the wrong fuse will damage the equipment and void the warranty.

M1823C-BB, M1833C-BB: 7 A for 12 V device, 3 A for 24 V device

M1933C-BB, M1943C-BB: 15 A for 12 V device, 7 A for 24 V device

M1953C-BB: 3 A for 12/24 V device

GD-1900C-BB: 3 A for 12/24 V device

CAUTION

Use the proper fuse.

Use of a wrong fuse can cause fire or damage the equipment.

7.2.3Replacement of the magnetron

When the magnetron has expired, distant targets cannot be seen on the display. When you feel that long range performance has decreased, contact a FURUNO agent or dealer about replacement of the magnetron.

Model	Magnetron type	Code no.
M1823C-BB	E3588	000-146-866
M1833C-BB	E3571	000-146-867
M1933C-BB	MAF1421B	000-147-385
M1943C-BB	MAF1422B	000-146-871
M1953C-BB	MAF1425B	000-146-872

7.2.4Replace of the synchro belt

When the synchro belt has worn out, the sweep is not synchronized with antenna rotation, which results in an abnormal picture. When you suspect that the synchro belt has worn out, contact a FURUNO agent or dealer about replacement.

Model	Syncho belt type	Code no.
M1823C-BB	40 S2M 266 UG	000-808-743

7-2 offered by Busse-Yachtshop.de