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8-6
Figure 8-6 Results of continuous test
SIO test
This text checks transceiver unit input and output.
SIO TEST
MAIN
I/F
SIO1
SIO-NAV
SIO-CI
= OK
= NG
= NG
PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK
For service technicians;
special test connector
required to check. NG
appears when no test
connector is connected.
Figure 8-7 Results of SIO test
Echo-1 test
This test checks the echo processing circuits in the display unit
for proper operation.
DISPLAY ECHO TEST
PRESS [MENU] 2 or 3 SECONDS TO STOP SELFCHECK
R 400
T 10°
G 3.0
R 29 B 358°
240
236
41
281°
ª
→
↓
B