Sony DXC-637 - DCC Adjustment

3-5-9. DCC Adjustment
Object: Grayscale chart
Equipment: Waveform monitor
To
be
extended:
EN-122
board,
PR-209
board
Preparation:
e GAIN switch/camera side — 0 dB
e WHITE BAL switch/camera side > PRESET
e@ OUTPUT switch/camera side - CAM/DCC ON
Adjustment Procedure
1. To be extended: EN-122 board
2. Chart frame = Underscanned monitor frame
3. Test point: VIDEO OUT
Adjusting point: Lens iris
Specification: A = 102%) IRE (for NTSC)
715*° mV (for PAL)
4. Test point: VIDEO OUT
Adjusting point: @RV9 (DCC LEVEL)/EN-122 board
Specification: B = 100 +) IRE (for NTSC)
700 43° mV (for PAL)
GAIN switch/camera side > MID (9 dB)
6. Test point: VIDEO OUT
Adjusting point: @RV8 (DCC CLIP)/EN-122 board
Specification: C = 92+ 1 IRE (for NTSC)
645 + 10 mV (for PAL)
DXC-637 (UC)
DXC-637P (EK)
3-13
To be extended: PR-209 board
GAIN switch/camera side > 0 dB
Open the lens iris by 3.5 steps.
0. Alternately readjust the following adjusting controls so
that the carrier leakage level of step 1 is minimum.
= 2 ON
@RV1 (B PRE SLOPE)/DUS-841 board
@RV2 (R PRE SLOPE)/DUS-841 board
Carrier Leagage
11.
12.
OUTPUT switch/camera side > CAM/DCC OFF
Test point: VIDEO OUT
Adjusting point: Lens iris
Specification: Cross point Level “D”
= 100 + 1 IRE (for NTSC)
700 + 10 mV (for PAL)
Confirm that Cross point Level “D” is 93 + 2 IRE (for PAL:
650 + 10 mV) when OUTPUT switch/camera side is set to
CAM/DCC ON.
13.
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PR-209/DUS-841 BOARD
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