Sony BVM-1916 Operation And Maintenance Manual page 111

19. BD (PAL) BOARD BPF ADJUSTMENT (BVM-2016P ONLY)
BD board
Sweep signal (10MHz)
VIDEO A
~
75n
terminator
Tektronix 1411 (PAL}
Generator
i:11
I:~;·
/~-;;r
L __
T_P_2---:--®
@
@
14------, BG board
@
D
D
• PAL S/SECAM F/COMB S button
(SUB CONTROL PANEL)········· ··················· ON
l Input SWEEP signal (10MHz) to the VIDEO A terminal of the
set.
2. Connect an oscilloscope to the TP2 on the BG board.
3_ Make the V/div of oscilloscope into VARIABLE, and match
the upper section of waveform to 7 div as shown in Fig. 19·1.
Fig. 19-1
4. Adjust L3 on the BD board so that A is equal to B as shown
in Fig. 8-2.
A<B
Fig. 19-2
4-61
@
@ @
A=B
A
1s
equal to 8 when the
amplitude is 5 div.
Osc11/oscope
7 div.
_l
I
5 div
j
BO board
~
0
~~
0
r
~L3
~
~
00
~
~
[21
[Qjo [Qj [Qj
0
0
0
~
0 0
'---,
~
0
0
0~
BG board
~
rQ]
[QJ[QJ~~
~
~
0
~
~~~~TP2
R·Y
0
~~~
0
0
0
4-62
SUB CONTROL PANEL (HY board)
0
0
OD-
0
OGAIN
0
ewe
GREEN
~,
0 0
OB
0
OBtAS
0
POSITION -LML-ADJLJST
"' "'
see
,w
CODED
1Q WHITE
2Q GRAY
0
0
OOPIC
SETUP
0 0 0 0
0
JQFORMAT
~
TEST " '
0
'
0 0 0
401NPUT
MARKER
"' '"
0
0
FILTER
0
0 sQsvNc
S(CAM "' ""'
0
0
MATRIX
.,,-
0 0 0
6QSYSTEM
CHROMA
/PHASE "'""
"''"
•
OPP-J..S
,O
0
0
1Qvc SEP 36~eMs
WHITE
MEM:l "'"' M[Ml OOS/C,,
"'' "
"' a,
'°
0
0~3~
0 0 0
0
0 aQV:t
c---
16: g
u
9OASPECT
0
o~~w[N
CONFIGURATION
0 0
0
"'
REMOTE
0
0
oQ~f~¼
RESET
"' '"
0 0 0
QMENU
AUTO SETUP
0