Service Adjustments (Electronic Controls) - Panasonic CT-36SL13G Service Manual

14. Service adjustments (electronic controls)

NOTE
Please correlate with available pattern on all adjustments
14.1. Sub-Brightness and Contrast / Service DAC adjustment
(BRIGH, CONT)
Adjustment of this control is important for setting proper operation of customer brightness and
picture controls. Do not adjust the SCREEN VR after the sub-brightness is set.
This adjustment is factory set. Do not adjust unless repairs are made to associated circuit, the
CRT Board or when the CRT is replaced.
Preparation
1. Apply a black and white pattern.
Note:
If a black and withe pattern is not available, a color bar pattern with no color can be used
following the same procedure; the waveform will be different
2. Set the PICTURE control to the maximum.
3. Set COLOR control to minimum (no color on picture).
4. Set the BRIGHTNESS control to the center.
5. Set the SHARPNESS control to the center.
6. Connect the oscilloscope to TP35.
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