Ypbpr Smpte (601) Signal Adjustment; 2-1. Black Level Adjustment - Sony TRINITRON PVM-14L5 Service Manual

3. Connection diagram
SG
(VG-854)
equivalent
set
H G
CN1100 CN605
CN301
CN101–104
PC
CN109
CN303
CN4801
Fig. 4-2
PVM-14L5/20L5/D14L5A/D20L5A
SG
(TG-2000)
equivalent
Q
CN1902
D C
T
CN502 CN702 CN1901
CN2001 CN2401
CN302
B
CN113 CN201
CN3802 CN3801
B1
4-2-2. 15k YPBPR SMPTE (601) Signal
Adjustment

4.2-2-1. 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.
Make flat
Fig. 4-3
6. Connect an oscilloscope to TP302.
7. Adjust PB/B BLACK (A2_8D) data on the MENU so
that the pedestal portion becomes flat.
Make flat
Fig. 4-4
8. Connect an oscilloscope to TP402.
9. Adjust PR/R BLACK (A2_94) data on the MENU so
that the pedestal portion becomes flat.
Make flat
Fig. 4-5
4-3