9-8
HDW-750/750CE V1
B
A
1H
4.
Complete the adjustment as shown below by using the
setup menu.
MENU :
SERVICE
PAGE :
06
*
RP DC OFFSET
ITEM :
G DC OFFSET 180
Specification : The two white vertical lines (C)
appear on the right end of monitor
display when the rotary encoder is
turned to increase the value in the
menu in the positive (
+
) direction.
The two white vertical lines (D)
appear below C when the rotary
encoder is turned to increase the value
in the menu in the negative (
_
)
direction. The two lines of C and D
should have unity brightness.
m
.
Do not change the setting of the G DC OFFSET 0.
.
If the lines C and D are difficult to view on the
screen, open the lens iris a little. It facilitates
viewing of the lines of C and D.
5.
Complete the setting as shown below by using the
setup menu.
MENU :
SERVICE
PAGE :
06
*
RP DC OFFSET
ITEM :
OUTPUT SELECT
→
B
6.
Complete the adjustment as shown below by using the
setup menu.
MENU :
SERVICE
PAGE :
06
*
RP DC OFFSET
ITEM :
B DC OFFSET 180
Specification : The two white vertical lines (E)
appear on the right end of monitor
display when the rotary encoder is
turned to increase the value in the
menu in the positive (
+
) direction.
The two white vertical lines (F)
appear below E when the rotary
encoder is turned to increase the value
in the menu in the negative (
_
)
direction. The two lines of E and F
should have unity brightness.
m
.
Do not change the setting of the B DC OFFSET 0.
.
If the lines E and F are difficult to view on the
screen, open the lens iris a little. It facilitates
viewing of the lines of E and F.
Setting upon Completion of Adjustment
Complete the setting as shown below by using the setup
menu.
MENU : OPERATION
PAGE : 09
*
GAIN SW
ITEM :
GAIN HIGH
→
12 dB
MENU : SERVICE
PAGE : 06
*
RP DC OFFSET
ITEM :
DC ADJ MODE
→
OFF
9-6-2. When the DC ADJ MODE Function Is
Not Equipped
Preparation
.
Lens iris
→
CLOSE
.
Extend the harness connected to CN3 of the DCP-28
board with DR extension assembly (EX-776). (Refer to
“1-15-11. Extending the CCD Unit”.)
Adjustment Procedure
Equipment : Oscilloscope
1.
Complete the adjustment as shown below by using the
setup menu.
Measurement point : TP2/EX-776 board
(DR extension assembly)
MENU :
SERVICE
PAGE :
07
*
RP DC OFFSET
ITEM :
R DC OFFSET 0
ITEM :
R DC OFFSET 180
Specifications :
DC voltage of the portion A must
be 0
±
100 mV and carrier leak at
the portion B must be minimum
at the same time.
9-6. Black Offset Adjustment