Sony DSC-D700 Service Manual page 78

2. VCO 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. Maximum amplitude voltage adjustment on panel
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.
3-8
Specifications
CN705 7 Pin
1) Connect the camera to an oscilloscope and observe the
waveform to confirm the PLL VCO (RPD) 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 VCO 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 VCO displayed in red).
4) Press the EXIT button once and return to the DBG
MENU item state.
±
A = 1.8
PLL
(RPD)
A
GND
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 BLANK LIMIT 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 BLANK LIMIT displayed in red).
4) Press the EXIT button once and return to the DBG
MENU item state.
Maximum amplitude voltage of waveform
±
A = 8.0
2H
Waveform
collapsed
and
0.05 V
and
0.1 Vp-p
Waveform
collapsed
A
Adjustments
VCO EVR
Adjustments
BLANK LIMIT EVR
DSC-D700 (UC,CE)