Adjustment For White Balance; Adjustment For Crt Cut Off - Panasonic TC-21FX20P Service Manual

2.3.

Adjustment for White Balance

Preparation:
1. Receive the white balance pattern and aging should have been performed over 30 minutes.
2. Set the picture menu to DYNAMIC NORMAL.
3. Degausse the CRT face.
4. Fix the CRT colour analyzer receiver unit to CRT face.
Adjustment of Low Light.
1. Adjustment Sub Bright, so that Y = 6.5 ± 1.0 nit.
2. Adjustment R-CUT OFF, so that X = 0.245 ± 0.015 nit.
3. Adjustment G-CUT OFF, so that Y = 0.274 ± 0.015 nit.
Adjustment of High Light
1. Adjustment Sub Bright, so that Y = 150 nit.
2. Adjustment R-Drive, so that X = 0.261 ± 0.015 nit.
3. Adjustment B-Drive, so that Y = 0.267 ± 0.015 nit.
2.4.

Adjustment for CRT CUT OFF

Preparation:
1. Connect the oscilloscope probe to TPL5.
2. Screen VR min.
3. Set the data Sub Bright, Bright.
4. In service Mode at "Bright" dac press [5] in factory mode to enter vertical line and adjust by volume down or up button.
5. Adjust "Screen VR" until 1-H Line appears.
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TC-21FX20P