Panasonic CT-24SL14J Service Manual page 31

The MTS circuit adjustments require two steps:
1. Input level adjustment.
2. Stereo separation adjustment.
Input level adjustment / Service DAC adjustment (MTSIN)
PREPARATION
1. Connect an RMS meter with filter jig as shown in figure to TPE11.
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
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
Filter Jig
31
s pre-emphasis is