Panasonic DLP PT-52DL52 Service Manual page 36

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, 100% modulation, stereo (left only)
(70 ± 5 dB, 75
3. Adjust the MTS Low-Level Separation Adjustment 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, 100% modulation, stereo (left only)
(70 ± 5 dB, 75
5. Adjust the MTS High-Level Separation Adjustment 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.
9.3. DMD position adjustment
1. Enter serviceman mode and select TEST (C-HR).
2. Confirms that 3 screws (3) is tightened up.
3. Loosen a screw (1).
4. While watching the screen, adjust focus at the center of screen by
turning ring (2).
5. Tighten the screw (1).
6. Loosen 3 screws (3).
7. Inserts a screwdriver (-) in the chink (4).
8. While checking the cross hair pattern, tilt screwdriver (-) and
adjust so that the vertical line comes on to the screen frame
midpoint marker.
9. While checking the cross hair pattern, turn the screw (5)(6) and
OPEN, P/S 10dB).
OPEN, P/S 10dB).
36