Ypbpr Betacam Setup; Signal Adjustment - Sony TRINITRON PVM-14L3 Service Manual

3-2-4. 15k YPBPR BETACAM SETUP
al
7.5 Signal Adjustment
Input the 15 kHz/60 Hz YPBPR BETACAM SETUP
7.5 color bar signal to the RGB/COMPONENT
connector.
Press the RGB/CMPNT switch on the operation panel
and select YPBPR BETA 7.5.
Connect an oscilloscope to TP203.
Adjust Y/G BLACK (A2—8C) data on the MENU so that
the pedestal portion becomes flat as shown in Fig. 3-15.
Make fiat
Standard value : 0110 mV
Fig. 3-15
Connect an oscilloscope to TP1251.
Adjust the Y LEVEL (A2—88) data on the MENU so
that the amplitude becomes the standard value as
shown in Fig. 3-16.
Standard value : A = 640 420 mVp-p
Fig. 3-16
Adjust the G-Y/B (A2~AC) on the MENU so that the
second step of the waveform has the standard value as
shown in Fig. 3-17, Remove the difference in ampli-
tudes between the second step and the third step of the
waveform with G-Y/R (A2~9E) on the MENU. Adjust
finely until the peak portion from the second step to the
fourth step of the waveform has the same amplitude.
on
G-Y/R variable adjustment
ace rs
Po,
G-YPB variable adjustment
Make flat
— i 0420 mV
36
Fig. 3-17
Connect an oscilloscope to TP1351.
Adjust the PB LEVEL (A2—B4) data on the MENU so
that the first step and the fourth step of the waveform.
have the same amplitude as shown in Fig. 3-18.
Adjust for the same amplitude
0 +20 mV
Fig. 3-18
) . Connect an oscilloscope to TP1451,
ik.
Adjust the PR LEVEL {A2—BC) data on the MENU
so that the first step and the second step of the wave-
form have the same amplitude as shown in Fig. 3-19,
Adjust for the same amplitude
0420 mV
Fig. 3-19
PYMH4L9/1414/20L4