Chroma Adjustment - Sony Betacam SX DNV-5 Maintenance Manual

8-4-2. Chroma Adjustment

8-4-2. Chroma Adjustment
Preparation
. Connect a waveform monitor to the TEST OUT and
vectorscope to the VIDEO OUT connectors respectively.
. OUTPUT/DCC switch (inside panel) → BARS
Adjustment procedure
Test point: VIDEO OUT connector
1. Setting of vectorscope.
GAIN : MAX
2. On the setting menu, adjust as follows.
PAGE : ENC ADJ.
ITEM : R-Y CAR. BAL.
B-Y CAR. BAL.
Spec. : Adjust the illuminated spot at the center
of the vectorscope.
Y
L
G
3. Setting of vectorscope.
: x1
GAIN
4. On the setting menu, adjust as follows.(For only PAL)
PAGE : LEVEL 4
ITEM : BURST PHASE
BURST LEVEL
Spec. : Position the burst signal on the defined
axes and levels.
Y
L
G
8-4
M
G
R
B
C
Y
R
M
G
B
C
Y
5. On the setting menu, adjust as follows.
(PAL: Check only)
PAGE : LEVEL 4
ITEM : BURST LEVEL
: A = 40 ±1 IRE (NTSC)
Spec.
A = 280 ±7 mV (PAL)
50%
6. On the setting menu, adjust as follows.
PAGE : ENC ADJUSTMENT
ITEM : BURST START
: B = 5.3 ± 0.1 µs (NTSC)
Spec.
B = 5.6 ± 0.1 µs (PAL)
7. On the setting menu, adjust as follows.
PAGE : ENC ADJUSTMENT
ITEM : BURST STOP
Spec. : C = 9 cycles (NTSC)
C = 2.25 ± 0.2 µs (PAL)
8. Position the burst spot on the defined axis.
9. Adjust as follows using the setting menu and 1FL12.
PAGE : LEVEL 4
ITEM : R-Y LEVEL
B-Y LEVEL
: 1FL12 (ES-11 board)
Adj. point
Spec. : Place the illuminated spots inside the
corresponding frames (DP: ±2.5
degree, DG: ±2.5%) on the vector-
scope.
A
B C
DNV-5
DNW-7/90/90WS