Sony BVM-1916 Operation And Maintenance Manual page 119

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2
J
27. BD BOARD (PAL) 2T PULSE CORRECTION
ADJUSTMENT (BVM-201 SP ONL V)
Tektronix 1411 (PAL)
Generator
2T PULSE signal
Input 2T pulse signal to VIDEO A terminal of the set
Connect an oscilloscope to the TPI of BG board.
AdJu\t
L2 of HD or BM board ~o that A is equal
to 13
as
~hown
in
Fig. 27-1.
2T pulse (\
I /
A
I
L
BG board
• Ad1ust L2 to obtain
the cond1 t10n A · B
BD board
VIDEO A
4.
Fig. 27-1
4-75
BG boa,d
'---,f@o@)
D@
TP 1
@)
@ @
Oscilloscope
Change the input signal from 2T pulse to T pulse, and make
sure the waveform balance is not lost extremely as shown in
Fig. 27-1.
T pulse
A ~.. 8
-
'-----
~~
* The waveform balance
should nor be lost
ex
tremefy.
BD board
[Q]
0
~[Q]
0
~ LQ]
~
00
[Q]
~L2
~
LQJo
[Qj [Qj
0
0
00
LQ]
0
[Q]
0
0
0
LQ]