Hitachi VK-S914 Service Manual page 9

Color & b/w video camera
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Purpose:
To set the color saturation under the reference color
temperature.
incompleted Phenomenon:
Color of the picture is denser than that of the subject.
Color of the picture is lighter than that of the subject.
EquipmentJig:
Oscilloscope (Vectorscope)
Test Point:
Video Out (AV OUT)
Condition:
Attach a C12 filter.
Point at a color bar chart.
Procedure:
ADJUSTMENT
Press 4 key.
(Fig. 3-4)
3-9
RED
[For TYPE $914]
570mV
+ 20MV
Fig. 3-4
RED
[For TYPE S914E]
BURST
200% + 5%
7.6
Autofocus Adjustment Procedure
Before Starting Adjustment
Be sure to perform this adjustment after replacing or
initializing the lens block, parts in the PC circuit board
(EEPROM).
(1) Start the MAP.
MAIN MENU
JERE
Gai reo
SO IO II OR IR og ack ack Rk AOR aA aR oR sia
ak
MANUAL ADJUSTMENT PROGRAM
([D]
AUTO FOCUS
PLEASE SELECT [A) - [E] OR [ESC]
(2) Press D key.
AF ADJ, MENU
AUTO FOCUS ADJUSTMENT
SOR OR HOR ar act eH NRC A CR A
2
AG SR ROR AC
2
EE
OO
a ao
(4)
ADJUSTMENT OF ZOOM/FOCUS TRACKING
{2]
ADJUSTMENT OF AF NOISE LEVEL
PLEASE SELECT [1], (2) OR [ESC]
(1) Zoom Trace Adjustment
Purpose:
To set the out-of-focus correction level during zooming.
incompleted Phenomenon:
Focus is lost during zooming.
Equipment/Jig:
Color Video Monitor
Backfocus Chart
Test Point:
Video Out (AV OUT)
Condition:
lens surface.
Light the chart with 200-400 lux.
Caution When Adjustment:
1) Measure the distance between the chart and lens
surface precisely.
Procedure:
AF ADJ. MENU
AUTO FOCUS ADJUSTMENT
JeSSI SSR ASG aOI ERC HOR HAI I RAC
CCH A aI AR CARA AA A A A I ROK
(1)
ADJUSTMENT OF ZOOM/FOCUS TRACKING
{2]
ADJUSTMENT OF AF NOISE LEVEL
{ESC]
RETURN TO MENU
PLEASE SELECT [1], [2] OR [ESC]
Press 1 key.
3—10

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