Sony BVM-1916 Operation And Maintenance Manual page 115

23. BD BOARD (PAL) COLOR DIFFERNCE LEVEL
ADJUSTMENT (BVM-2016P ONLY)
Color-bar signal
VIDEO A
terminal
BD board
BG board
~
75n
terminator
Tektronix 1411 (PAL)
Generator
•color-bar signal
(
FULL FIELD color-bar)
100 IRE
14-------."'@ l=~@
BH board
/ -,- TP101
@
TP201
@ @
75%AMPL
• PAL S/SECAM F/COMB S button
(SUB CONTROL PANEL)---···-·-------------------- ON
Input color-bar signal to the VIDEO A terminal of the set
2. Connect an oscilloscope to the TPI0I of BH bo;ird
3. Adjust RV3 of BD or BM board so that the levels with* is flat
as sho\.VJl in Fig. 23-1.
Adjust the levels with •
to be flat respectively
useing R V3 of BO board
TP101 ROUT
Fig_ 23-1
4 Connect an oscilloscope to the TP30 I of BH board
5. Adjust RV4 of BD board so that the output waveform as
shown in Fig. 23-2.
TP301 BOUT
Fig_ 23-2
4-69
TP301
0
0
0
Osc1lloscope
SUB CONTROL PANEL (HY board)
0
r---::::~-:c:----=-:-----c::----=~------c~cc::-~o
0 0 Ofr
o
O'-'"
o ,o~""
BLUE GREEN RED
0 0
0.()
0
QaiAS
0
2Q GRAY
eo~ec-,o,,s1,
" "'" '"' CODED
0 flfup 0 0 0 0 0
JQroRMAT
0 ~'
TEST " '
0 0 0
~O1NPUT
c,; '"
0
QFILTER
0 0
sQsYNC
SECAM "' NTSC
0
OMATRIX
f---;,;-
0 0 0
6OSYSTEM
CHROMA
/PHASE
COMO
,-
•
OPA!.S
,o
0
0
1Qyc SEP 5b~s
'M11T[ MeMO MEM2 MEMI 065/093
MC "
,,
" "
0
0 CROSS
HATCH
0 0
0
0 0 aQ~irE
~
16. B 4: 3
0
OSPUT
CONFIGURATION
0
0
9OASPECT
SCREEN
6
o
REMOTE
0 oQ~~½
RESET ENT [SC
0 0 0
AUTO SCTUP
~-------~----,o
Make flat
6
7
Connect an oscilloscope to the TP201 of BH board.
Adjust RV4 and RVS of BG board so that the INPUT wc1ve-
form becomes flat as shown in Fig. 23-3.
TP201 GOUT
RV4~
RVS ---------
Fig_ 23-3
BD board
[Q]
0
~[Q]
0
-
[Q]
r01RV3
[Q]
00
[Q]
[Q]
RV4101
[Q)o [Q) [Q)
0
0
0
[Q]
0 0
-------
[Q]
0
0
0
[Q]
-
4-70
BG board
BH Board
I
'
'
0
TP101 A OUTO
TP201 G OUT8
TP301 BOUT