![Panasonic PT53X54J - 53](http://html.mh-extra.com/html/panasonic/pt53x54j-53-projection-tv-hd/pt53x54j-53-projection-tv-hd_service-manual_273091066.webp)
http://tsn.pstc.panasonic.com/viewing/NA/PT-53X54J/SVC/s1715000000.html
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:
Filter jig
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
Ω
open, P/S 10dB).Make sure to turn off 75
μ
s pre-emphasis.
2. Adjust DAC MTSIN MTS-INPUT data until the voltage measured is 106 ± 6.0mV RMS.
Stereo separation adjustment (SEPAL & SEPAH)
Preparation:
1. Connect an RF signal generator to the RF antenna input.
2. Connect an oscilloscope probe to TP17 (R_OUT, A-board).
Procedure:
1. Set PTV to Stereo Mode (in the audio menu).
2. Apply the following signal from the RF signal generator:
Video: 100 IRE flat field, 30% modulation.
Audio: 300Hz, 30% modulation, stereo (left only) (70dB ± 5dB, 75
Ω
OPEN, P/S 10dB).
Note:
Set the 30% modulation with the pilot light SW and N.R. switches OFF then turn them ON while testing.
3. Adjust MTS low-level separation SEPAL DAC data (in the service menu) until the amplitude of the measured waveform on
the scope is minimum.
4. Apply the following signal from the RF signal generator:
Video: 100 IRE flat field, 30% modulation.
http://tsn.pstc.panasonic.com/viewing/NA/PT-53X54J/SVC/s1715000000.html (1 of 2) [23/04/2012 12:16:32 p.m.]
Summary of Contents for PT53X54J - 53" PROJECTION TV HD
Page 164: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A PCB TNP2AH158 PAGE 1 OF 2 PT 53X54J ...
Page 165: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A BOARD TNP2AH158 PAGE 2 OF 2 PT 53X54J ...
Page 166: ...1 2 3 4 5 6 7 8 A B C D E F G H I J D PCB PAGE 1 of 2 TNP2AH059 PT 53X54J ...
Page 167: ...1 2 3 4 5 6 7 8 A B C D E F G H I J D PCB PAGE 2 of 2 TNP2AH059 PT 53X54J ...
Page 168: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DC PCB TOP BOTTOM VIEW TNP2AA163 PT 53X54J ...
Page 169: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG PCB BOTTOM VIEW TNP2AA173 PT 53X54J ...
Page 170: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG PCB TOP VIEW TNP2AA173 PT 53X54J ...
Page 171: ...1 2 3 4 5 6 7 8 A B C D E F G H I J H PCB TNP2AA174 PT 53X54J ...
Page 173: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LB PCB TNP2AA161 PT 53X54J ...
Page 174: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LG PCB TNP2AA160 PT 53X54J ...
Page 175: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LR PCB TNP2AA162 PT 53X54J ...
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Page 180: ...1 2 3 4 5 6 7 8 A B C D E F G H I J A BOARD 1 of 3 TNP2AH058 PT 53X54J ...
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Page 183: ...1 2 3 4 5 6 7 8 A B C D E F G H I J D BOARD 1 of 5 TNP2AH059 PT 53X54J ...
Page 184: ...1 2 3 4 5 6 7 8 A B C D E F G H I J D BOARD 2 of 5 TNP2AH059 PT 53X54J ...
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Page 187: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DC BOARD 1 of 2 TNP2AA163 PT 53X54J ...
Page 188: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DC BOARD 2 of 2 TNP2AA163 PT 53X54J ...
Page 189: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG BOARD 1 of 11 TNP2AA173AE PT 53X54J ...
Page 190: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG BOARD 2 of 11 TNP2AA173AE PT 53X54J ...
Page 191: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG BOARD 3 of 11 TNP2AA173AE PT 53X54J ...
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Page 197: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG BOARD 9 of 11 TNP2AA173AE PT 53X54J ...
Page 198: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG BOARD 10 of 11 TNP2AA173AE PT 53X54J ...
Page 199: ...1 2 3 4 5 6 7 8 A B C D E F G H I J DG BOARD 1 1 of 11 TNP2AA173AE PT 53X54J ...
Page 201: ...1 2 3 4 5 6 7 8 A B C D E F G H I J H BOARD TNP2AA174AD PT 53X54J ...
Page 202: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LB BOARD 1 of 2 TNP2AA161 PT 53X54J ...
Page 203: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LB BOARD 2 of 2 TNP2AA161 PT 53X54J ...
Page 204: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LG BOARD 1 of 2 TNP2AA160 PT 53X54J ...
Page 205: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LG BOARD 2 of 2 TNP2AA160 PT 53X54J ...
Page 206: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LR BOARD 1 of 2 TNP2AA162 PT 53X54J ...
Page 207: ...1 2 3 4 5 6 7 8 A B C D E F G H I J LR BOARD 2 of 2 TNP2AA162 PT 53X54J ...