Sony BVM-1916 Operation And Maintenance Manual page 97

9. BC Board PHASE SHIFT ADJUSTMENT
(BVM-1916 ONLY)
BC board
COMP SYNC signal
2.
3.
Generator
•color-bar signal
(
FULL FIELD R-Y
off)
7.5% set up
100 IRE
75% AMPL
l. Complete the connection as shown in Fig 9-1.
• COLOR SYSTEM (SUB CONTROL PANEL) ...... NTSC
• FORMAT button (SUB CONTROL PANEl:) .......... CODED
• YC SEP button (SUB CONTROL PANEL) ......... TRAP
• SYNC button (SUB CONTROL PANEL)·········· .. EXT
Connect an oscilloscope to the TP2 on the BG board.
Make the waveform flat with the PHASE control of front panel
as shown in Fig. 9-2.
j!
AUTO
SET UP
PROBE
0
"
DEGAUSS
•
Fig. 9-2
FRONT PANEL
SCAN MODE SCREEN APER- BLUE MONO
r-,---,
~
TURE ONL 'r MOOE
[i::j] [I]
Iii "
[g][g][g][g][g][g][g][g][g]
0
Attenuator
terminal
BG board
TP2
®D®
@
® ®
Oscilloscopg
Fig. 9-1
4.
Attenuate the signal bY. lOdB by using attenuator.
5.
6.
7.
PHASE
control
Adjust RV3 on the BC board so that the output waveform
becomes flat as shown in Fig. 9-2.
Restore the attenuator to OdB.
Repeat the steps 3 to 5.
PflASE CHROW. BRIGHTNESS CONTRAST OVER
1
INPUT
2 0 0 0 0
''.,"gig]
~e---=----1~----'-[@_ij~o ~~"'
IQ] [Ql
I
l)
I
PHASE
I
MANUAL SW
PRE
.c:i
4-33
BC board
0
0
0
~
BG board
~
0
0
~~
~
AV3
~
~~~~~
~
0
0
0
4-34
SUB CONTROL PANEL (HY board)
0
0
OiI
0
BLUE
GREEN sm
0
0 0.fl
0
POSITION -LEVEL-ADJUST
ooKJ~up
"'
"
0 0
~
0
0
W.RKER
0
0 FILTER
~
0
0 W.TRIX
t---
CHR0W.
/PHASE
0
or~f
COMB S
0
OGAlN
QmAS
SGS '"
0 0
TEST
e
0 0
m
•
SECAM "'
0 0
COMB
0
0
0
CODED
0
'
0
'"'
0
""'
•
'"'" •
1Q WHITC
20 GRAY
0
0
3ofORW.T
4O1NPUT
sQsYNC
6OSYSTEM
1Qvc SEP
WHITE MEMJ MEM2 MEMI 065/093
Mc
"'
~ "
so
0
0
CROSS
0 0
0 0 0
aQ~E KATCH
t---
16, 9 4, 3
0
OSPLIT
CONFIGURATION
0 0
sQASPECT SCREEN
0
m
REMOTE
0
0 oQ~~lfr
RESET '"'
,~
0 0 0
OMENU
AUTO SETUP
0