Sony BVM-1916 Operation And Maintenance Manual page 113

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