Sony BVM-2011P - Page 136

26. BO BOARD (PAL) DELAY TIME ADJUSTMENT
(BVM-2011 P ONLY)
FULL FIELD/Y REF Color-bar signal
.----------------------, 75'2 terminator
Tektronix 1411 (PAL)
Generator
*Color-bar signal
(Y REF)
• PAL S/SECAM F/COMB S button
(SUB CONTPOL PANEL) .................................................. ON
I. Input color-bar signal (FULL FIELD/Y REF) to the VIDEO
A terminal of the set.
TP-2 (R-Y)
TP1 ------------.
.___c_H1+(oo)@ D®
@
@)
Oscilloscope
2. Connect an oscilloscope (CH-I probe) to the TPI of BG
board and connect an oscilloscope (CH-2 probe) to the TP2
of BG board (VERT mode of the oscilloscope is CHOP).
3. Adjust RVl of BD board so that output waveform as shown
in Fig. 26-1.
Adjust RV1 so that Eis equal to F.
E=F
A=B
BG Board
Fig. 26-1
BO board
~
0
~[Q]
0
0
,,...-,
[Q]
tQJ
~
00 fQJ
[Q]
~
Rv,l0Jo
[@ [Q'J
0
~
0
00
0
EQJ
0
0
0~
4-76