JRC JFE-582, Руководство по обслуживанию

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Description of working
1.TRANSDUCER UT
−
200ND20
1-1.The signal from CML-596-2 TX/RX UNIT is converted into supersonic signal by
TRANSDUCER and transmitted to underwater.
1-2. The signal that is sea bottom echo is received, and converted into electronic signal
for CML-596-2 TX/RX UNIT.
1-3. Inside the transducer consists of element like condenser, and insulation resistance
of its core cable is infinity. (
∞
)
2.MATCHING BOX AW-154F
2-1. This box included matching transformer is installed between JFE-582
(RECORDER) and TRANSDUCER to match cable loss.
3.RECORDER JFE-582
3-1. CML-596-2 TX/RX UNIT
3-1-1. TX/RX signal control
Received signals are divided into the paper-recording signal and the digital
depth indicator signal.
＊
Received signal for Digital depth indicator is set and controlled by software, so it is
unable to operate GAIN and STC on the LCD menu.
3-1-2. Carry out the control of NMEA, TX TRIG, and ALARM signal to I/O UNIT
CQD-1705.
3-1-3. +12V source from CBD-1488 Power Unit is converted into +5V and –12V.
3-2. CQD-1705 I/O UNIT
3-2-1. Each signal of NMEA (POSITION), DEPTH ACK, and POWER FAIL ACK from
External equipment is received by Photo coupler, and output it to CML-596-2
TX/RX UNIT.
3-2-2. Each signal of NMEA (DEPTH), TX TRIG, and DEPTH (ALARM) from
CML-596-2 TX/RX Unit is output to External equipment.
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