Sailor RE2100, Техническое руководство

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3 SERVICE RE2100
Connect an oscilloscope channel A to U09 pin 13.
Set TB=500uS and control the wave form as
shown below. Control the same wave form on U09
pin 14 and 15.
CHECK OF SP-BUS TRANSMITTER/RECEIVER
Press the digits 0 and 1 at the same time. The
equipment will now be in Quick Service mode and
the display will show “SP- “.
Select the service programme SP-00-3 (ref. to
chapter 3.10). If the SP-BUS does not work satis-
factorily, an “E” will be displayed in the TX-display.
Connect an oscilloscope to BNC connector J04
(SP-BUS output). Control that the wave form seen
is approx. equal to the one shown below. The 8
data bit and parities bit will change every time the
SP-BUS transmitter sends a new byte. Transmit
speed is 4800 baud and the time between two
bytes is approx. 14 mS.
CHECK OF EEPROM U05
In order to test the Electrical Erasable PROM, the service programme SP-10-0 has to be run. Press the
digits 1 and 0 at same time. The equipment will now be in Quick Service mode and the display will show
“SP- “. Then press the digit 1-0-0 and finish with ENT. The RX-display will read out “SP-10-0 and the
TX-display will start to count from 0 to 512. If the counting stops with 512 and an “A” is shown, the
EEPROM is ok. But if the counting is stopped between 0 and 512 and an “E” is shown, there must be a
programming error.
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