Ypbpr Smpte (601) Signal Adjustment; 3-2-2-1, Black Level Adjustment - Sony TRINITRON PVM-14L3 Service Manual

3. Connection diagram
SG 8G
(VG-854)
equivaient
(TG-2000}
equivalent
— oe
GNSO1 CN2001 CN2A01]
{ [enior-i
PvaetaLartal 420.4
3-2-2. 15k YPBPR SMPTE (601) Signal
Adjustment
3-2-2-1. Black Level Adjustment
1. Input the 15 kHz/60 Hz YPBPR SMPTE (601) 100 %
color bar signal to the RGB/COMPONENT connector.
2. Press the RGB/CMPNT switch on the operation panel
to select YPBPR.
3. Set YPBPR MATRIX on the MENU to 601. (Applica-
ble for PVM-D14L5J/D20L5/14L4/20L4 only)
4. Connect an oscilloscope to TP203.
5. Adjust Y/G BLACK (A2—8B) data on the MENU so
that the pedestal portion becomes flat as shown in Fig.
3-3.
Make flat
Fig. 3-3
6. Connect an oscilloscope to TP302.
7. Adjust PB/B BLACK (A2~8D) data on the MENU so
that the pedestal portion becomes flat as shown in Fig.
3-4.
Make flat
\
Fig. 3-4
8. Connect an oscilloscope to TP402.
9. Adjust PR/R BLACK (A2—94) data on the MENU so
that the pedestal portion becomes flat as shown in Fig.
3-5.
Make fiat
=
Fig. 3-5