Panasonic CT-24SL14J Service Manual page 107

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
OPEN, P/S 10dB). Make sure that the 75
OFF.
2. Adjust the MTS input level adjustment "MTSIN" data until the RMS
voltage measured is 120 ± 4.0mVrms.
Stereo separation adjustment (SEPAH)
PREPARATION
1. Connect an R.F. signal generator to the RF antenna input.
2. Connect a scope to TPE10.
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, 75
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, 75
OPEN, P/S 10dB).
32
s pre-emphasis is