Sony BVM-1911 Operation And Maintenance Manual page 105

3. EACH CHANNEL LEVEL ADJUSTMENT
Tektronix 1410 (NTSC)/1411 (PAL)
• NTSC color bar signal
(
FULL FIELD color-bar)
75%AMPL
100 IRE
7.5 IRE set up
• PAL color bar signal
(
FULL FIELD color-ba)
75%AMPL
100 IRE
D
0
• FILTER button (SUB CON1ROL PANEL) .............................. OFF
• MODE selector (FRONT PANEL) ............................. MONO (L::1..)
• INPUT selector (FRONT PANEL) .......................................... 1 Co .. )
j
BA board
j
I. Input a color-bar signal to VIDEO A terminal to the set.
2. Connect an oscilloscope to the TPI 01 of BA board.
3.
Adjust to 1.0Vp-p with RVIOI of BA board as shown in Fig.
3-1.
Fig. 3-1
Connect an oscilloscope to the TPI of BG board.
5. Adjust to l.OVp-p with RV3 of BG board as shown in l·ig.
3-1.
6. Connect an oscilloscope to the TP201 of BH board.
7. Adjust FRONT BRT YR so that@ (black level) is OV DC as
shown in Fig. 3-2.
8. Adjust FRONT CONT VR so that@ (100% whith level) is
-0.7V DC as shown in Fig. 3-2.
®©®@
Fig. 3-2
@
Black /eve/
® 100% White level
©
0 IRE level
@
100 IRE level
®
1.5
IRE level
4-23
BG board TP1
BH board TP201
®®D®
@
'------+<'••)
@)
Oscilloscope
J
BH board
j
9. S2 (BH Board) .... 0 IRE
10.
Make flat
©
@
Fig. 3-3
Make flat
I
BH board)
11. S2 (BH Board) ..... 7.5 IRE
Adjust R V2 of BH board so that the
@
(7
.5 IRE level ) coin-
cides with@ (Black level) as shown in Fig. 3-4.
12. Set S2 (BH Board) to AUTO.
®
A
Fig. 3-4
FRONT PANEL
~
APER· BLUE MONO PHASE CHROMA. BRIGHTNESS CONTRAST OVER INPUT
B TUtO'ttDE
O O O O
L~~~
Dggg[QJ
~ ~
ij ij
~
o
g g
(\--+--~-~----'/) -
MANUAL J 4
\
MODE selector
I
MONO.=.
SUB CONTROL PANEL (HY board)
0
0
0
0
0 0
OD-
0
OGAIN
0
1Q \YHITE
BLUE GREEN
RED
0 0
OD-
0
Qe1AS
0
20
GRAY
POSITION-LEVEL-ADJUST
o
~o
D1 RGB YW CODED
0 0 0
O
aQ,oRMAT
0
S.AD.
TEST B A
me
0 0 0
401NPUT
MARKER
EXT INT
0
0
FILTER
0 0 sQsYNC
SECAM PAL NTSC
0
OMA.TRIX ASU
0 0
O
sQsY5TEM
CHROMA
/PHASE COM!! TRAP
0
o~~~F
0 0
0
7QYc SEP
COhe S
WHITE MEM3 MEM2 MEMI 065/D93
BAL RJ R2 Rl RO
0 ocROSS
HATCH
0 0 0 0
0
eQl'fil!rE
~
16, 9
4 :3
0
osPUT
CONFIGURATION
0 0
sQASPECT
SCREEN
8
SEL
REMOTE
0
0
0
0~r~~
RESET ENT ESC
0 0 0
QMENU
AUTO SETUP
0 0
BG board
0
[Q]
~
~~~
0
0
[Q][Q][§:]
4-24
POWfR
BA board
0
0
ol<$J
BA-6 [}
@)~
[§]
BA-5[}
@~
o[§]
BA-4 [}
@~
0
BH board
0 IRE
[DJ
AUTO S2
7.5 IRE
RV11'
RV2
6)
RV3
6)
0
~
0
TP201 GREEN
8