Sub Colour; Secam Black Level - Panasonic TX-34P800R Service Manual

TX-34P800R
4.5.

Sub Colour

1. Receive a 3.58 MHz NTSC rainbow pattern
2. Connect oscilloscope to TPL 2 (Green)
3. Set controls:
BRT............. ...CENTER
COLOUR........CENTER
CONTRAST....MAX
AI................ ....OFF
4.6.

Secam Black Level

1. Receive SECAM white pattern
2. Connect oscilloscope to TPL 1
3. Set controls:
BRT............. ...CENTER
COLOUR........CENTER
CONTRAST....MAX
AI................ ....OFF
Item/Preparation
Item/Preparation
Adjustment Procedure
1. Adjust Sub Colour:
A=2.3 ~ 3.0 ± 0.1V
Adjustment Procedure
1. Adjust SECAM B-Y so that H-blanking time and colour center are
equal level.
2. Connect oscilloscope to A44 pin 41.
3. Adjust SECAM R-Y OUT so that H-blanking time and colour center
are equal level.
4. Connect oscilloscope to A44 pin 39.
5. Receive SECAM white pattern on both Main and Sub picture.
6. Adjust Sub SECAM B-Y so that H-blanking time and colour center
are equal level.
7. Connect oscilloscope to A44 pin 41.
8. Adjust Sub SECAM R-Y so that H-blanking time and colour center
are equal level.
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Fig. 6
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Fig. 10