7.2.2. Stereo separation adjustment
Instrument Name
Connect to
Remarks
Oscilloscope
RF signal generator
Monitor out R
RF ANT. Input
Procedure
Remarks
1.
Select stereo mode in the audio menu.
2.
Apply following RF signal at Antenna input.
Video: Flat field, 30% modulation
Audio: 300Hz, 30% modulation, stereo (Left only)
(70dB ±5dB ,75
W
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.
Select SEPAL of MTS Adjust in factory Adjust mode
4.
Adjust “SEPAL” data (Low-level separation) until the amplitude
5.
Apply following RF signal at Antenna input.
Video: Flat field, 30% modulation
Audio: 3kHz, 30% modulation, stereo (Left only)
(70dB±5dB ,75
W
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.
6.
Select SEPAH of MTS adjust in factory adjust mode
7.
Adjust “SEPAH” data (High-level separation) until the the amplitude of the waveform on the
oscilloscope 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 300Hz
and 3kHz.
19
TC-32LX50 / TC-26LX50
Summary of Contents for TC26LX50 - LCD COLOR TV
Page 8: ...Main Item Sub item Remarks MTS HDMI_ADJ MTSIN WP SEPAL SEPAH 8 TC 32LX50 TC 26LX50 ...
Page 20: ...20 TC 32LX50 TC 26LX50 ...
Page 26: ...TC 32LX50 TC 26LX50 26 ...
Page 27: ...10 Schematic Diagrams 10 1 Schematic Diagram Notes TC 32LX50 TC 26LX50 27 ...
Page 42: ...TC 32LX50 TC 26LX50 42 ...
Page 53: ...12 Exploded View and Replacement Parts List 12 1 Parts Layout 53 TC 32LX50 TC 26LX50 ...
Page 54: ...12 2 Front Chassis Layout 54 TC 32LX50 TC 26LX50 ...
Page 55: ...12 3 Packing Exploded Views 55 TC 32LX50 TC 26LX50 ...
Page 57: ...13 Electrical Parts List 13 1 Electrical Parts List Notes 57 TC 32LX50 TC 26LX50 ...
