K Ypbpr Smpte (709) Signal Adjustment - Sony TRINITRON BVM-D9H1U Maintenance Manual

2. 15k YPBPR SMPTE (709) Signal Adjustment

2-1. BLACK Level Adjustment
Status During Adjustment
Step 1
. . . . . Input the 15 kHz/60 Hz YPBPR
SMPTE (709) 100% color bar signal.
. . . . . Use the FORMAT item of the INPUT
CONFIG menu to select YPBPR SMPTE.
Set 709 for YPBPR MATRIX.
. . . . . Connect an oscilloscope to TP302.
Step 2
. . . . . Connect an oscilloscope to TP303.
Step 3
. . . . . Connect an oscilloscope to TP304.
2-2. CHROMA Leak Adjustment
Status During Adjustment
Step 1
. . . . . Input the 15 kHz/60 Hz YPBPR
SMPTE (709) 100% color bar signal.
. . . . . Use the FORMAT item of the INPUT
CONFIG menu to select YPBPR SMPTE.
Set 709 for YPBPR MATRIX.
. . . . . Use the CHROMA knob to set
"0" to the CHROMA data.
. . . . . Connect an oscilloscope to TP303.
Step 2
. . . . . Connect an oscilloscope to TP304.
Step 3
. . . . . Set "128" to the CHROMA data
using the CHROMA control knob.
BVM-D9H1U/D9H5U/D9H1E/D9H5E/D9H1A/D9H5A
Specifications
Make flat the pedestal portion of the
Y-signal waveform at TP302.
Level difference: 0 ± 10 mV
Make flat
Make flat the pedestal portion of the
PB waveform at TP303.
Level difference: 0 ± 10 mV
Make flat
Make flat the pedestal portion of the
PR waveform at TP304.
Level difference: 0 ± 10 mV
Make flat
Specifications
Make flat the PB waveform at TP303.
Level difference: 0 ± 20 mV
Make the signal amplitude as flat as possible.
Make flat the PR waveform at TP304.
Level difference: 0 ± 20 mV
Make the signal amplitude as flat as possible.
Adjustment Point
Use the adjustment menu Y/G BLACK
(41H) that is located under the directory
of the VIDEO menu of the
MAINTENANCE menu.
Use the adjustment menu PB/B BLACK
(32H) that is located under the directory
of the VIDEO menu of the
MAINTENANCE menu.
Use the adjustment menu PR/R BLACK
(22H) that is located under the directory
of the VIDEO menu of the
MAINTENANCE menu.
Adjustment Point
Use the adjustment menu CHROMA PB
(11H) that is located under the directory
of the VIDEO menu of the
MAINTENANCE menu.
Use the adjustment menu CHROMA PR
(10H) that is located under the directory
of the VIDEO menu of the
MAINTENANCE menu.
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