Furuno CSH-5LMARK-2, Installation Manual

Page: 47 / 86

3-1
3. ADJUSTMENTS
3.1 Measuring TX Output
1. Set the controls of the control unit as follows.
2. Connect the oscilloscope across Vout + and Vout – jacks on the TAMP boards
(10P6624) and measure the peak-to-peak voltage of the TX signal at the center
point of its pulse length.
Measuring TX output signal
TX OUTPUT: 10 (Max.) PULSE LENGTH: 10 (Max.)
VER BEAMWIDTH: NARROW RANGE: 200 m
WARNING WARNING
Do not open the equipment unless
totally familiar with electrical circuits
and service manual.
Only qualified personnels are allowed to
work inside the equipment.
ELECTRICAL SHOCK HAZARD
Waveform measured across Vout + and Vout -
Channel No.
Test Point Location
1.0 ms/division, 200 V/division 5.0 μs/division, 100 V/division
5 3 1
6
4 2
7 9 11
8 10 12
TP8
TP7
TP1
TP2
(V. DC)
(GND)
(V out + )
(V out - )
TP1
TP2
(V out + )
(V out - )
TP1
TP2
(V out + )
(V out - )
TP1
TP2 (V out + )
(V out - )