Panasonic CT-30WX54J Service Manual page 177

PROCEDURE
1. Select stereo mode in 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) (70±5dB, 75Ω OPEN, P/S 10dB).
NOTE
After setting 30% modulation with P.L. SW and N.R. SW OFF, turn P.L. SW and N.R.
SW ON.
3. In service mode, adjust the MTS Low-Level separation adjustment SEPAL data until the
amplitude displayed on the scope is minimum.
4. Apply the following signal from the RF signal generator:
Video: 100 IRE flat field, 30% modulation
Audio: 3KHz, 30% modulation, stereo (left only) (70 ±5dB, 75Ω OPEN, P/S 10dB).
NOTE
After setting 30% modulation with P.L. SW and N.R. SW OFF, turn P.L. SW and N.R.
SW ON.
5. Adjust the MTS High-level separation adjustment SEPAH until the amplitude displayed on the
scope is minimum.
6. Repeat above steps 2 through 5 until the amplitude is at minimum for both signals.
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