Signal Check - Sony BL55-RU Bedienungsanleitung

3-4-6. Signal Check

Check that the interface unit is turned off.
Refer to section 4-2 for removing and attaching the cover of the interface unit.
1
Connect the CH1 probe of the oscilloscope to the TP3 and TP8 check pins of the interface unit.
2
Connect the CH2 probe of the oscilloscope to the TP2 and TP7 check pins of the interface unit.
Oscilloscope
3
Set the TIME/DIV switch to the X-Y mode.
4
Set the deviation sensitivity (VOLTS/DIV) of CH1 and CH2 to 0.5 V/DIV.
5
Set the input coupling switches of CH1 and CH2 of the oscilloscope to GND and adjust the oscilloscope
to locate the signal at the bottom left of the screen.
6
Set the input coupling switches of CH1 and CH2 of the oscilloscope to DC.
7
Turn the interface unit's power on.
n
Be sure that the interface unit is turned off before attaching or removing the probe of the oscilloscope.
BL55-RU
CH1
CH2
CH2 CH1
Probe
TP3 TP6
TP8
TP2 TP5
TP1 TP4
TP7
Fig. 3-13
TP3
TP6
TP2
TP5
TP1 TP4
TP7
Signal adjustment section-datailed view
Interface unit
TP8
3-9
(E)