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21. BD BOARD 4.43 MHz (PAL) lo ADJUSTMENT (BVM-2016P ONLY)
Color-bar signal
VIDEO A
75H terminator
v'
BD board
Tektronix
1411
(PAL)
Generator
*Color-bar signal
(
FULL
FIELD
color-bar)
100 IRE
8D boa,d
'------l-©@)
~J@)
TP2
@)
@
@
75%AMPL
1.
Input color-bar signal to the VIDEO A terminal of the set.
2.
Connect an oscilloscope to the TP2 of BD board.
3.
Short-circuit between TPl 1, 12 of BD board with a jumper
wire.
4.
Adjust CV2 of BD board so that the output waveform is
shifted slowly as shown in Fig. 21-1.
5.
Turn off the power of this monitor, and disconnect TPll, 12
of BD board.
TP2 on the BO board
D
Fig. 21-1
Adjust the output waveform
to
be shifted slowly
as
if
,t stop.
-
'-
4-65
Osc1lloscope
BD board
[Q]
TP12
~[Q]
0
0
CV2
TPl 1
~
~
~
00
[Q]
~
~
[Q)o [Q] [Q]
8TP2
[GI
0
0
0
[Q]
0
0
0
[Q]
4-66
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