Panasonic CT-27SL13MUG Service Manual page 52

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 colorbar pattern.
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.
Procedure
1. In the service mode, select DAC for brightness adjustment
"BRIGH", and adjust data to obtain 3.6±0.1V between 7.5IRE and
GND level at TP35. (See waveform detail).
2. In service mode, select DAC for contrast adjustment "CONT", and
adjust data to obtain 2.7±0.1V between 7.5IRE and 100IRE level at
TP35. (See waveform detail)
12.2. PIP Sub-contrast (PCONT)
Pocedure:
1. Apply a colorbar pattern to the main and sub (PIP)
2. Select "PCONT" and adjust to 70 so that PIP level is 100±10% of
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