Raymarine ST40, Руководство по обслуживанию

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Chapter 4, ST40 Wind Instrument
ST40 Instruments Service Manual 83149-2 2-29
E22041
Chapter 4: ST40 Wind Instrument
Input/output signals
D4836-2
Connections to instrument
ROTA- (Blue)
ROTA+ (Red)
BATT+ (Red)
BATT- (Screen)
STALK (Yellow)
Raymarine
Limited
Signal Description
STALK Intermittent streams of (nominal) 12 V pulses
BATT- 0 V
BATT+ Nominal 12 V dc supply
ROTA+ Rotavecta current constant
ROTA- 0 V
Refer also to the
ST40 Wind circuit diagram
.
Self-test procedure
Each ST40 instrument has built-in self-test functions to aid fault diagnosis.
To self-test an ST40 Wind instrument:
• Press the and keys simultaneously for 4 seconds, to access self-test mode,
then within 2 seconds, press the and keys together momentarily, to start
self-test stage 1.
Self test stage 1
When entering self test stage 1, the instrument beeps and the display shows TEST 1 ,
for 1 second. The following tests are then performed automatically:
• SeaTalk self test, which checks the receive and transmit circuits.
• EEPROM test (read and write).
If the tests are satisfactory,
PASS
is shown on the display.
If the tests are not satisfactory, the following failure codes may be generated: