8
1.3.4 PRA Board (06P0259)
The preamplifier (PRA) board, 06P0259 locates in the transceiver unit. Figure 1.6 shows the
block diagram of PRA board.
From Transmitter
Matching
Transformer
Trap Circuit
To Transducer
Resonance Circuit
Pre-Amplifier
Receiving
Signal Output
Figure 1.6 Block Diagram of PRA board
Summary of Contents for CH-270
Page 1: ...COLOR SEARCHLIGHT SONAR CH 270...
Page 13: ...10 58 59 6 6 DRV 06P0154 Hull Unit XDR Slip ring Figure 2 1 Signal Flow in Transmitter...
Page 14: ...11 Hull unit XDR Slip ring 6 6 59 58 Figure 2 2 Signal Flow in Receiver...
Page 19: ...16 Figure 2 5 TRANSCEIVER UNIT CPU J2 3 4 3 4 5 6 J10 5 6 7 8 CR16 U17 U34 191 R104 R105...
Page 23: ...20 DRV Board 06P0154...
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