Honeywell International Inc. DMA-37B2 Manuale Utente

Page 1003

10 Oct 2007

DMA-37B DME System

© Honeywell International Inc. Do not copy without express permission of Honeywell.

(1) The self-test mode starts by displaying the Test in Progress screen, see Figure 1003, 

one second after pressing the test key. This is displayed for four seconds with a moving 

thermometer along the bottom of the LCD indicating the progress of the test from one to 

five seconds.

(2) The Normal Mode screen (Figure 1001) is displayed for the first second of the test 

sequence.

(3) Once complete, the Test Complete, No Failures screen is displayed (Figure 1004), or 

the Test Complete, Failures screen is displayed (Figure 1005). Both screens contain two 

key selections each: MAINT and RETURN or MAINT and WHY?, respectively.
• MAINT

For both screens, MAINT is located on the left key. This allows the 

initiation of the extended maintenance pages of the system for 

troubleshooting. Refer to Paragraph D.

• RETURN In the Test Complete, No Failures screen, the RETURN key to the right 

returns the system to its normal mode screen (Figure 1001).

•  WHY?

In the Test Complete, Failures screen, the WHY? key to the right puts 

the system into the display-failures mode where individual system 

failures are displayed one on each page. Refer to Paragraph C.

(4) While in the self-test mode, not pressing either key for five minutes causes the system 

to return to the Normal Mode screen (Figure 1001).