Panasonic TX-34P800R, Service Manual, Page: 25 / 82

2. Confirm V, H-hold is normal.
5.7.2. V-CENTER ADJUSTMENT
1. Adjust V-POS(1125i_50) so that center of the ITE pattern is center of the CRT.
5.7.3. V-HEIGHT ADJUSTMENT
1. 4:3 MODELS
Adjust V-Amp(1125i_50) so that A,B in Fig 23. is *1.
*1
29” 5.5cm ± 1cm
34” 7.0cm ± 1cm
2. WIDE models
Adjust V-Amp(1125i_50) so that C=90 ± 2.5(%) in the Fig.25
5.7.4. H-CENTER ADJUSTMENT
1. Adjust H-Pos(1125i_50) so that center of the ITE pattern is center of the CRT.
5.7.5. H-HEIGHT ADJUSTMENT
1. Adjust H-Amp(1125i_50) so that D=92.5 ± 2.5(%) in the Fig.25
5.7.6. V-LINEARITY CONFIRMATION / ADJUSTMENT
1. Conform V-Linear as to the balance of the circle.
If need, adjust V-Linear(1125i_50)
5.7.7. SIDE PINCUSHION CONFIRMATION / ADJUSTMENT
1. Receive crosshatch pattern at 1125i_50YUV input.
2. Adjust the vertical line is straight line by Parabola(1125i_50)
3. Adjust the vertical line to straight line of bothside vertical line in Fig. 26 by Trapezoid(1125i_50)
4. Confirm there is no H-parallel distortion.
If there is distortion, adjust by H-Parallel(1125i_50)
In that case, repeat 3) and 4) so that there is no Trapezoid/H-Pararell distortion.
5. Confirm the vertical pincussion of the corner side.
In need, adjust Top-Corner (1125i_50) and Bottom-Corner (1125i_50)
6. Confirm bow level of the both side.
If the bow level of the both side is not symmetrical, adjust C-Correct(1125i_50)
5.7.8. CONFIRM R-Y-, B-Y SIGNAL
1. Receive colour bar pattern at 1125i_50YUV input.
2. Confirm colour is normal.
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TX-34P800R