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HL
3-4-2.
BARS Level Adjustment
Equipment:
Oscilloscope
To be extended: EN-122 board
Preparation:
OUTPUT switch/camera side — BARS
Adjusting point: @RV12 (BARS LEVEL)/EN-122 board
Test point:
pin A14 (GND: A16)/extension board
Trigger:
HD (pin B23/extension board)
Specification:
A=1.40+0.02V
[for NTSC]
[for PAL]
aa
pee smn a
at
yore
o
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cam oo
A
A
EN-122 BOARD
RVI2
(BARS LEVEL)
Rvs
7)
DL2
DLi
{DCC CLIP)
a
| |
;
RV6
wvcomp) @ @
a
Rv5
RV3
RV7
Rvs
RV1O
RV11
(Y (VBS)}
(SYNC)
(SET UP)
(¥ CLIP)
(OCCLEVEL)
(KNEE)
(WHITE CLIP)
NTSC ONLY
3-4-3.
Color Vector Adjustment
Equipment:
Verctorscope
To be extended: EN-122 board
Preparation:
e GAIN switch/Verctorscope > 75% CAL
e Adjust the PHASE contro! on the vectorscope so that the
burst spot is overlapped to the 75% axis.
e OUTPUT switch/camera side — BARS
Adjustment Procedure
1.
Adjust @RV6 (BURST LEVEL)/SG-232 board so that the
burst spotis located at 75% scale mark on the vectorscope
screen.
2.
Adjust the following controls alternately so that each
beam spot stays inside the reference frame"EB".
@RV7 (BURST PHASE)/SG-232 board
@RV8 (Q (U) LEVEL)/SG-232 board
@RV10 (CHROMA LEVEL)/SG-232 board
3.
Repeat procedure 1 and 2 several times.
[for NTSC]
[for PAL]
$G-232 BOARD
~ SOLDERING SIDE —
AV?
(PHASE)
@
RV4
Rve
aa
(Q(u) LEV)
DXC-637 (UC)
DXC-637P (EK)
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