Panasonic PT53TW53G - 53" PROJECTION TV HD, Service Manual

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specification level.
8. Confirm that level of C is more than 20 V, adjust / “H-PAR” DAC to set
to specification level.
16.2. Focus - Electrical& optical adjustments
(use for minor adjustment or for final adjustment, for complete adjustment see following section.)
Electrical Adjustment
NOTE:
1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 set-top box DTV decoder.
1. Apply a NTSC crosshatch with dots pattern
Lens focus adjustment
RED GREEN BLUE
Electric
focus
B A/B A
Optical
Focus
B A/B A
2. Set VIDEO “C_OFF” DAC from 00 to 02, and project only red. Adjust
red focus VR so that focus is best
Focus pack
3. Adjust red lens focus (mechanical) until focus is best.
4. Adjust red focus VR again.
5. Set VIDEO “C_OFF” DAC from 00 to 01, and project only green.
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