Garmin GNS 530AW Installation Manual - page 111

500W Series Installation Manual  

Page 5-33 

190-00357-02  

Rev. D 

7.

Using a VOR test set verify that the CDI deviation on the SN3308 is displayed correctly. 

5.5.7.2.2  Two 500W Series Units / One SN3308 

The checkout for two 500W Series units also applies to one 400W Series unit and one 500W Series unit. 

1.

Remove power from the second (no. 2) 500W Series unit. 

2.

Cycle power to the first GNS 500W Series unit and acknowledge the prompts until it gets to the 

self test page (see Section 5.5.1). 

3.

Select GPS1 as the navigation source by pressing the NAV key on the SN3308. 

4.

Ensure that the SN3308 is receiving valid heading. 

NOTE 

The Vertical Deviation Indication will not be displayed unless the SN3308 is receiving 

valid heading. 

5.

While the first GNS 500W Series unit is displaying the self test page, verify that the SN3308 is 

displaying the following data from GPS1. 

•

Course Deviation:   Half-scale left deviation, TO indication, flag pulled 

•

Vertical Deviation:  Half-scale up deviation, flag pulled 

•

Active Waypoint:  GARMN 

6.

On the first GNS 500W Series unit verify that an OBS value is displayed (and not dashed out). 

7.

Acknowledge the self test on the first GNS 500W Series unit by pressing the ENT key. 

8.

Select VLOC on the first GNS 500W Series unit and verify that the SN3308 displays NAV 1 or 

NAV 2 (depending on what navigation source the GNS 530W is).  

9.

Using a VOR test set verify that the CDI deviation on the SN3308 is displayed correctly. 

10.

Remove power to the first 500W Series unit and apply power to the second GNS 500W Series 

unit and acknowledge the prompts until it gets to the self test page (see Section 5.5.1). 

11.

Select GPS2 by pressing the NAV key on the SN3308. 

12.

Repeat steps 4-9 with the second GNS 500W Series unit. 

5.5.7.3  Sandel SN3500 Interface Check 

If a Sandel SN3500 EHSI has been connected to a 500W Series unit, the interface should be verified as 

described in this section. 

1.

Cycle power to the GNS 500W Series unit and acknowledge the prompts until it gets to the self 

test page (see Section 5.5.1). 

2.

Ensure that the SN3500 is receiving valid heading. 

NOTE 

The Vertical Deviation Indication will not be displayed unless the SN3500 is receiving 

valid heading.