Sony BVM-1916 Operation And Maintenance Manual page 91

BA board
3. EACH CHANNEL LEVEL ADJUSTMENT
75rl.
_,,, _______ c_of_o_,._b_ac_,_if_n_a_f _________
;terminator
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 co/or-ba)
75%AMPL
!O0IRE
D
• FILTER button (SUB CONTROL PANEL) .............................. OFF
• MODE selector (FRONT PANEL) ............................. MONO (...r:::::::L)
• INPUT selector (FRONT PANEL) ......................................... 1
(.ci)
I
BA board
I
1. Input a color-bar signal to VIDEO A termim1l to the set
2 Connect an oscilloscope to the TP!Ol of BA board
3. Adjust to l.OYp-p with RY!Ol of BA board as shown in 1-ig
3.1,
Fig. 3· 1
Connect an oscil!oscope to the TPJ of BG board
5. Adjust to l .OVp-p with RVJ of BG board as shown in !-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 YR so that@ (100% whith level) is
-0.7V DC as shown in Fig. 3-2.
®©®@
Fig. 3-2
~\) Black level
, B,
100% White level
CD o
IRE level
;~
100 IRE level
® 7.5 IRE level
4.21
BG board TP1
BH board TP201
®®[_ J®
®
~----- @
Oscilloscope
I BH boa,d I
9 S2 (BH Board) . . 0 IRE
10
\...~l.
Fig. 3.3 Make flat
I
BH boa,d
I
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
EN APER· BLUE MONO
--, TURE ONLY MODE
s
t
t
t
Dgggg
(\
PHASE CHROMA BRKlHTNESS CONTRAST OVER ,'NPUT
2
0 0 0 0
'~[g][g]
ij,__=--'ij_ij~o_ij~
_;J~
~
{)
I
MODE selector
I
MONO
.c:::I.
0
0
0
SUB CONTROL PANEL (HY board)
0
0 OD-
0
o=,
0
1QwHITE
BLUE
GREEN
,rn
0
0 OD
0 Qe1AS 0
2Q GRAY
POSITION -LEVEL -ADJUST
"' 0, ""
,w
CODED
0
0
OOPIC
SETUP
0 0 0 0
0
30FORMAT
c5it. TEST " '
0
C
0 0 0
401NPUT
MARKER
m
"'
0
OFILTER
0 0
50SYNC
SECAM ""
"~
-
0
OMI\TRJX -""-
0 0
0
60SYSTEM
Cf-lROl,\A
/?KASE
COMB '"'
0 OfMr 0
0
0
1Qvc SEP
COMB
s
WHITE
MEM3 MEM2 MEMI 005/D9J
"' " " " ~
0
0
CROSS
HATCH
0 0 0 0
0 aQ~c
~
16 ,9
4;J
0 O~lrn
CONFIGURATION
0 0
90ASPECT
c3
m
REMOTE
0
0 oQ~W-fu
RESET '" '"
0 0 0
QMENU
AUTO SETUP
0
BG board
0
~
~
[Q][Q][Q]
0
0
[Q][Q][Q]
4-22
0
0
BA board
0
8
0
TP101
olGJ
BA6[}
®[QJ
[§]
BA5[}
®~
0IGJ
BA·4[}
®~
BH board
TP201
DIRE
~
AUTO S2
7.5 IRE
RV1
[(S)
I
RV2~1
RV3~1
0
~
0
GREEN
8