*
NO
YES
NO
YES
NO
YES
NO
YES
-16-
Monitor portion
Control PCB
Does voltage at J2-No.3
change when Gain/Far Gain
Control dial are turned?
Hull Unit portion
Main PCB
Are the waveforms seen between
J6-No.1 and No.8 in Main PCB for
Hull Unit portion when Gain 0 and
Far Gain 10 are selected?
0Volt is present when Gain 0 is selected.
5Volt is present when Gain 10 is selected.
Are the waveforms of check pin
(CP) B normal?
Does the waveform at J3-No.3
in Main PCB for Hull Unit
change when Gain/Far Gain dial
are turned?
TR PCB
Summary of Contents for S-1800H80/180
Page 44: ...N o 6 8 8 A...
Page 46: ......
Page 48: ......
Page 50: ...NO 748 H SYNC CH1 J15 3pin GND V SYNC CH2 J15 4pin GND...
Page 53: ......
Page 55: ...NO 654 FRQ CH1 FRQ GND P...
Page 64: ......
Page 67: ......
Page 69: ......
Page 70: ...180kHz HULL UNIT CIRCUIT DIAGRAM WAVE FORMS 180 kHz...
Page 73: ......
Page 75: ......
Page 81: ...70V...
Page 83: ...NO 703 CH1 FRQ GND P...
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Page 118: ......
Page 119: ...HULL UNIT ASSEMBLY DRAWING...