Sony DXC-637 - White Clip Adjustment; PRE CLIP Adjustment

mL
3-5-10. White Clip Adjustment
Object: Grayscale chart
Equipment: Waveform monitor
To be extended: PR-209 board
Preparation:
e@ WHITE BAL switch/camera side — PRESET
e GAIN switch/camera side > 0 dB
e OUTPUT switch/camera side - CAM/DCC OFF
Adjustment Procedure
1. Chart frame = Underscanned monitor frame
2. Lens iris - Open
3. Adjust @RV11/EN-122 board so that the white level at
VIDEO OUT is 115 + 2 IRE (for PAL: 805 + 10 mV).
115+2 IRE
< (for PAL: 805 + 10 mV)
4. Confirm that the white clip level is 113 to 117 IRE (for PAL:
790 to 820 mV) when OUTPUT switch on the camera side
is set to CAM/DCC ON.
— COMPONENT SIDE —
EN-122 BOARD
(BARS LEVEL)
@
RV8
(DCC CLIP)
@
RV6
(¥ (COMP) @
RvS Rv4 RV3 Rv7 Ryo RV10 Rvit
(¥ (VBS)) (SYNC) (SETUP) = (Y CLIP) (DCC LEVEL) (KNEE) (WHITE CLIP)
NTSC ONLY
3-14
3-5-11. PRE CLIP Adjustment
Note:
Perform this adjustment only when the carrier leakage level is
2 IRE or more (for PAL: 10 mV or more) with shooting the
grayscale chart and setting GAIN switch on camera side to 18
dB.
Object: Grayscale chart
Equipment: Waveform monitor
To be extended: PR-209 board
Preparation:
e WHITE BAL switch/camera side — PRESET
e GAIN switch/camera side + 18 dB
Adjustment Procedure
1. Chart frame = Underscanned monitor frame
2. Lens iris — Open
3. Adjust @RV407/PR-209 board so that the carrier leakage
level of the grayscale waveform at the VIDEO OUT is
minimum,
— | Carrier Leakage Level is
a Minimum
4. Repeat “3-5-10. White Clip Adjustment” and “3-5-11. PRE
CLIP Adjustment” until the specification is met.
Note: After adjustment, set as follows.
GAIN switch/camera side > 0 dB
PR-209/DUS-841 BOARD — COMPONENT SIDE —
RV407
(PRE CLIP) @
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et
DXC-637 (UC)
DXC-637P (EK)