Panasonic TC-32LX50 Service Manual

Also see for TC26LX50 - LCD COLOR TV: Operating instructions Operating instructions Operating instructions

Contents

Panasonic TC-32LX50 Service Manual Manual pdf 19 page image

7.2.2. Stereo separation adjustmentInstrument Name Connect to RemarksOscilloscopeRF signal generatorMonitor out RRF ANT. InputProcedure Remarks1. Select stereo mode in the audio menu.2. Apply following RF signal at Antenna input.Video: Flat field, 30% modulationAudio: 300Hz, 30% modulation, stereo (Left only)(70dB ±5dB ,75 OPEN ,P/S 10dB)Note: After setting 30% modulation with P.L. SWAnd N.R. SW off, TURN P.L. SW and N.R. SW on.3. Select SEPAL of MTS Adjust in factory Adjust mode4. Adjust “SEPAL” data (Low-level separation) until the amplitude5. Apply following RF signal at Antenna input.Video: Flat field, 30% modulationAudio: 3kHz, 30% modulation, stereo (Left only)(70dB±5dB ,75 OPEN ,P/S 10dB)Note: After setting 30% modulation with P.L. SWAnd N.R. SW off, TURN P.L. SW and N.R. SW on.6. Select SEPAH of MTS adjust in factory adjust mode7. Adjust “SEPAH” data (High-level separation) until the the amplitude of the waveform on theoscilloscope minimum.8. Repeat steps 2. to 7. until Low-level separation and High-level separations satisfy above-mentioned conditions.*Need to min 30 minutes aging.Need to more than 20dB separation at 300Hzand 3kHz.19TC-32LX50 / TC-26LX50