Sony Cyber-shot PRO DSC-D700, Руководство по обслуживанию

Страница: 79 / 116

3-9 DSC-D700 (UC,CE)
4. Signal center value adjustment
Machine condition for adjustment Specifications Adjustments
Equipment: Oscilloscope
Mode: 100 % ramp image
1) Enter the camera test mode as
described in preparation for
adjustment.
2) Select the TEST CHART item with
the DBG MENU item displayed on
the 2.5-inch LCD screen and
display RAMP H in red. Press the
EXECUTE button twice to display
a 100 % ramp image.
3) Press the EXIT button once to
display a DBG MENU item.
CN705 8 Pin
1) Connect the camera to an oscilloscope and observe the
waveform to confirm the G-channel voltage output to the
connector CN705 of the camera.
2) Display the D/A CONV item in a DBG MENU item in red
and press the EXECUTE button once.
3) Display SIGNAL CENTER in red, select the item, and
press the EXECUTE button. Shift the value using the
and
buttons and adjust it to the proper value. The
specifications are as described below.
→
After adjustment, press the EXECUTE button to define
the data (with SIGNAL CENTER displayed in red).
4) Press the EXIT button once and return to the DBG
MENU item state.
Maximum DC voltage of waveform A = 10.0
±
0.1 DVC
Minimum DC voltage of waveform B = 2.0
±
0.1 DVC
SIGNAL CENTER EVR
A
B
GND
2H