Download  Print this page

Chroma Leak Adjustment; Matrix Adjustment - Sony TRINITRON PVM-14L5 Service Manual

Color video monitor.
Hide thumbs

Advertisement

4-2-2-2. CHROMA Leak Adjustment

1. Set the CHROMA to "0" using the PC tools.
2. Connect an oscilloscope to TP302.
3. Adjust the CHROMA PB (A2_8A) data on the
MENU so that the pedestal portion becomes flat.
Standard value : 0
Fig. 4-6
4. Connect an oscilloscope to TP402.
5. Adjust the CHROMA PR (A2_89) data on the MENU
so that the pedestal portion becomes flat.
Standard value : 0
Fig. 4-7
4-4
Make flat
±
20 mV
Make flat
±
20 mV

4-2-2-3. MATRIX Adjustment

1. Connect an oscilloscope to TP1251.
2. Adjust the Y LEVEL (A2_87) data on the MENU so
that the amplitude becomes the standard.
Standard value : A = 540
Fig. 4-8
3. Remove the difference in amplitudes between the first
step and the second step of the waveform with G-Y/B
(A2_AA) on the MENU.
Remove the difference in amplitudes between the
second step and the third step of the waveform with G-
Y/R (A2_9C) on the MENU. Repeat the adjustments
until the top peak of the waveform becomes flat.
G-Y/R variable adjustment
G-Y/B variable adjustment
Fig. 4-9
4. Connect an oscilloscope to TP1351.
5. Adjust the PB LEVEL (A2_E1) data on the MENU so
that the first step and the fourth step of the waveform
have the same amplitude.
Fig. 4-10
6. Connect an oscilloscope to TP1451.
7. Adjust the PR LEVEL (A2_B9) data on the MENU so
that the first step and the second step of the waveform
have the same amplitude.
Adjust for the same amplitude
0 ±20 mV
Fig. 4-11
A
±
20 mVp-p
Make flat
0 ±20 mV
Adjust for the same amplitude
0 ±20 mV
PVM-14L5/20L5/D14L5A/D20L5A

Advertisement

Table of Contents

   Also See for Sony TRINITRON PVM-14L5

Comments to this Manuals

Symbols: 0
Latest comments: