Signal Adjustment; Signal Adjustment Preparations - Sony BS78 Series Instruction Manual

3-4. Signal Adjustment

3-4-1. Signal Adjustment Preparations

Check that the detector is turned off. Connect the detector (BD series) to the BS78 scale unit.
1
Remove the protective cap from the connector plug of the scale unit, and connect the connector plug to
the HEAD IN terminal of the detector.
n
. Use the screws to secure the connector in place.
. Do not touch the connector pins with your hands as this might damage the inner electronic parts by
static electricity. When the connector is not used, such as during transport, be sure to mount the
protective cap.
. Be sure to switch off the power supply to the detector before attaching or removing the connector.
2
Connect the CH1 probe of the oscilloscope to S (SIN) and G (GND) of the signal adjustment section of
the detector.
3
Connect the CH2 probe of the oscilloscope to C (COS) and G (GND) of the signal adjustment section of
the detector.
4
Set the TIME/DIV switch to the X-Y mode.
5
Set the deviation sensitivity (VOLTS/DIV) of CH1 and CH2 to 0.5 V/DIV.
6
Set the input coupling switches of CH1 and CH2 of the oscilloscope to GND and adjust the oscilloscope
to locate the signal in the center of the screen.
7
Set the input coupling switches of CH1 and CH2 of the oscilloscope to DC.
8
Turn the detector's power on.
BS78
Connecting the BS78 and BD15 series detector unit
Oscilloscope
CH1
CH2
BS78 scale unit
Fig. 3-17
CH1
CH2
S
C
G
Signal adjustment
section-detailed view
Probe
Connector plug
HEAD IN
BD15 series
detector
S I G O U T
S
C
G
C H E C K
H E A D I N
SALM
LALM
REF
RESET
LASER SCALE
13
(E)