Panasonic PT-53X54J Service Manual page 58

6. Use a test signal from a VCR or DVD disk that has a pre-recorded
close up of a signal that has good flesh tones.
7. The signal from the VCR or DVD player should look normal.
Color Check
Using a clean RF or video signal, set the color level so that it does not saturate or appear harsh.
Make sure that color is not set so that it appears dull and washed out. Look for natural colors, try
to adjust the picture to appear as a normalphotograph.
17.15. MTS circuit adjustment
Note:
It is important to adjust the MTS circuit in the order shown below.
The MTS circuit adjustment require two steps:
1. Input level adjustment.
2. Stereo separation adjustment.
Input level adjustment (MTSIN)
Preparation:
1. Connect an RMS meter (A.C. range) with filter jig as shown:
2. Connect an RF signal generator to the RF antenna input.
Procedure:
1. Apply the following signal from the RF signal generator: / Video:
100 IRE flat field, 30% modulation. / Audio: 300Hz, 100%
modulation, monaural (70 ± 5dB, 75
to turn off 75
2. Adjust DAC "MTSIN" MTS-INPUT data until the voltage measured
is 106 ± 6.0mV RMS.
Filter jig
s pre-emphasis.
open, P/S 10dB).Make sure
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