Panasonic CT-27E13G - Page 30

required for “good gray scale and warm highlights”.
1. LOW LIGHT areas - In service mode for making electronic
adjustments, select CUT R, CUT G, CUT B and adjust the picture
for gray.
2. HIGH LIGHT areas - In service mode for making electronic
adjustments, select drive R DR, B DR and adjust the picture for
warm whites.
Complete adjustment
PREPARATION
1. Turn the receiver “ON” and allow 30 minutes warm up at WHITE
PATTERN.
2. Apply a color bar pattern (with no color).
3. Turn the SCREEN control (part of FBT T551) fully
counterclockwise.
4. Preset the following service DACs for best results:
- BRIGH______________________1 D0
- CUT R______________________02 00
- CUT G______________________02 00
- CUT B______________________02 00
- R DR_______________________07 FF
- B DR_______________________07 FF
PROCEDURE
1. Connect the oscilloscope to KG (CRT-Board).
2. In service mode for making electronic adjustment, select “BRIGH”
DAC.
3. Press RECALL button on the remote control to collapse the raster.
(service SW).
4. Connect oscilloscope to KG on C-Board and adjust service mode
“CUT-G” DAC until 195±2V above DC ground is measured.
5. Remove the probe from KG.
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