Furuno 821, 841 manual Installation Check List

		SPU-9180
		Parts side
	Remove JP3.
	JP3	JP4
	CR14
R93	R90
	R91
R94
R95	Q15
	R91
Q16	R92	Remove R91 and R92.

5.Add jumper wire between J55 pin #3(RXD-H) and J61 pin #1(TXD-H).

6.Add a jumper wire between J55 pin #4(RXD-C) and J61 pin #5(SHIELD).

Add the jumper wire between J61#5 and J55#4.

	JP3		JP4
	CR14
R93	R90		J55
	R91	J61
R94					R69
	5
	Q15				C27
R95			4	3	R70
	R91
Q16	R92
	1

Add the jumper wire between J61#1 and J55#3.

7.Connect the NMEA cable to the con- nector assy (03-1796/5P, supplied with radar) as shown in the figure below.

8.Connect the 5P connector to J51 on SPU

Board.

9. Replace the covers removed in step 1.

10.Connect navaid and other equipment to radar.

11.Turn on the radar and confirm that NAV data in properly received at the radar and external equipment.

5.3 Installation Check List

After completing the installation it is a good idea to check for proper installation. Follow the checklist below and tick boxes to show proper completion.

❒Is the vent tube on the antenna housing on the stern side?

❒Are the four bolts for fixing the radome tightened?

❒Is the signal cable waterproofed at the radome base?

❒Is the signal cable secured against a mast or bulkhead?

❒Is the cable gland or cable entry on the deck fully waterproofed?

❒Are the connections to the battery of correct polarity?

❒Are all the antenna and display units grounded?

Solder

NMEA cab le Echosounder

Other Equipment

NMEA cable (Telesounder data not be mixed.)

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