Sony DXC-637 Service Manual page 54

Color video camera
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3-5-7.
Flare Adjustment
Object:
Grayscale chart
Equipment:
Waveform monitor
extension board: PR-209 board
Preparation:
$301 (FLARE ON/OFF)/PR-209 board — ON
Adjustment Procedure
1.
Chart frame = Underscanned monitor frame
2.
Test point:
VIDEO OUT
Adjusting point: Lens iris
Specification:
A= 100+ 2 IRE (for NTSC)
700 + 10 mV (for PAL)
3.
Open the lens iris by one step.
4.
Adjust the following adjusting controls alternately so that
the level "B" is maximum and the carrier leakage is
minimum.
@RV201 (G FLARE)/PR-209 board
@RV101 (R FLARE)/PR-209 board
@RV301 (B FLARE)/PR-209 board
Carrier Leakage to Mimimum
— COMPONENT SIDE —
PR-209/DUS-841 BOARD
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3-12
3-5-8.
MANU KNEE Adjustment
Object:
Grayscale chart
Equipment:
Waveform monitor
To be extended: PR-209 board, EN-122 board
Preparation:
e GAIN switch/camera side — MID (9 dB)
e WHITE BAL switch/camera side
— PRESET
Adjustment Procedure
1.
Turn the following adjusting controls fully clockwise Q.
@RV10 (MANU KNEE)/EN-122 board
@RV1 (B PRE SLOPE)/DUS-841 board
@RV2 (R PRE SLOPE)/DUS-841 board
2.
To be extended:
EN-122 board
Chart frame = Underscanned monitor frame
4.
Test point:
VIDEO OUT
Adjusting point: Lens iris
Specification:
A= 102 +1 IRE (for NTSC)
715 + 10 mV (for PAL)
o
5.
Turn
@RV10
(MANU
KNEE)/EN-122
board
counterclockwise slowly from fully clockwise and stop
where the level "A" at VIDEO OUT connector becomes
100 + 1 IRE (for PAL: 700 + 7 mV).
Note: After adjustment, carry out "3-5-9. DCC Adjustment".
DXC-637 (UC)
DXC-637P (EK)

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