Sony DSC-D700 Service Manual page 80

5. Contrast adjustment
Machine condition for adjustment
Equipment: Oscilloscope
Mode: 50 % full-white signal
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 WHITE FIELD in red.
Press the EXECUTE button
twice to display a 50 % full-white
waveform image.
3) Press the EXIT button once to
display a DBG MENU item.
6. VCOM voltage adjustment
Machine condition for adjustment
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.
3-10
Specifications
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 CONTRAST in red, select the item, and press the
EXECUTE button. Shift the value using the
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 CONTRAST displayed in red).
4) Press the EXIT button once and return to the DBG
MENU item state.
±
A = 1.9 0.05 Vp-p
2H
GND
Specifications
CN705 9 Pin
1) Connect the camera to an oscilloscope and observe the
waveform to confirm the voltage at the VCOM pin 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 VCOM in red, select the item, and press the
EXECUTE button. Shift the value using the
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 VCOM displayed in red).
4) Press the EXIT button once and return to the DBG
MENU item state.
VCOM voltage 5.5
and
A
and
±
0.1 V
Adjustments
CONTRAST EVR
Adjustments
VCOM EVR
DSC-D700 (UC,CE)