41
Operate the sonar in self-check mode where the
display unit alternately drives the tilt/train circuits.
Which is faulty, tilt or train?
Tilt problem
Train problem
Check tilt motor drive pulse on DRV board
06P0154.
01 : Q5 (C)
02 : Q3 (C)
03 : Q4 (C)
04 : Q2 (C)
Common is (-) of
ship’s supply.
+8ms
V
0V
Note that train and tilt circuits
are driven alternately.
Check result is OK?
No (Driver circuit has problem.)
Check TI CLK and TI DN/UP input signal on
DRV board 06P0154.
TI CLK : U7 #12 J1 #20 (com)
TI DN/UP : U7 #6
J1 #20 (com)
TI CLK
TI U/D
UP : 0V
DN : t4.5V
+4.5V
0V
2ms
Check wiring between the transceiver unit
and the hull unit.
U3 or Q2/Q3/Q4/Q5 is faulty.
Drive circuit is OK.
(Tilt Motor or Feedback Circuit is faulty.)
Check result is OK?
Yes
No
Yes
Содержание CH-270
Страница 1: ...COLOR SEARCHLIGHT SONAR CH 270...
Страница 13: ...10 58 59 6 6 DRV 06P0154 Hull Unit XDR Slip ring Figure 2 1 Signal Flow in Transmitter...
Страница 14: ...11 Hull unit XDR Slip ring 6 6 59 58 Figure 2 2 Signal Flow in Receiver...
Страница 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...
Страница 23: ...20 DRV Board 06P0154...
Страница 33: ...30 Figure 4 11 Raise Lower Unit 06P0147 F1 4A F2 12V 4V 24V 3A S1 S3 R3 S2 R4 TRAIN Board 06P0154...
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