Sony BVM-2011P - 19. BD (PAL) BOARD BPF ADJUSTMENT (BVM-2011 P ONLY)

19. BD (PAL) BOARD BPF ADJUSTMENT (BVM-2011 P ONLY)
Sweep signal (10MHz}
Tektronix 1411 (PAL}
Generator
• PAL S/SECAM F/COMB S button
(SUB CONTROL PANEL)········ ..................... ON
1. 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 Bas shown
in Fig. 8-2.
A<B
Fig. 19-2
4-63
14-------, BG board @ D
.___T_P 2----®• @ @)
®
@ @
A=B
A is equal to B when the
amplitude is 5 div.
Osc,lloscope
7 div.
J_
,,-
'--
BD board
tQ]
0 [Q][Q]
0
0
~L3
~
[Q]
00
~
[Q]
[Q]
[Q]o [QJ [Q]
8 tQ]
0
0 0
~
0
0
0~
BG board
rQ]
[QJ[QJ~~~
~
0
tQ]
~~~~Te2RY
0
[Qj[Q][Q]
0
0
0
4-64
SUB CONTROL PANEL {HY board)
0 0 OD'
0
OGAIN
0
BLUE
GREEN RED
0 0
O~
0
QB!AS
0
POSITION-LEVEL-ADJUST
01
RGB YUV
CODED
1QWHITE
2Q GRAY
0
0
o ·~ 0
0
0 0
0 3OFORMAT
TEST
B A
0 5.AD.
0 0 0
401NPUT
VITC
MARKER
EXT INT
0
OFILTER
0 0
sQsvNC
SECAM PAL
NTSC
0
OMATRIX
-
0 0
O aQsvsreM
ASU
-
CHROMA
/PHASE
COMB TRAP
•
o:~~F
0
0
0 1Qvc SEP
COMBS
MEM3 MEM2 MEM 1 D65/093
WHITE
BAL
R3 R2
R1
RO
0
OCROSS
HATCH
0
0 0 0
0
aQ~IE
-
16: 9 4; 3
0
OSPUT
CONFIGURATION
0 0
sQAsPECT
SCREEN
6
SEL
REMOTE
0
0
oQ~f~
RESET
ENT ESC
0
0 0
QMENU
AUTO SETUP
0