Sharp 21HS-50H Instrukcja serwisowa - Strona 10

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21HS-50H

• GEOMETRY ADJUSTMENT PROCEDURE

To adjust the geometry, follow the procedure outlined below:

1.Tune the set into a Philips test pattern.

2.Enter the service mode as described on page 6.

3.Use the channel up or channel down buttons to enter the desired mode

4.Use the volume buttons to achieve correct setting.

5.When adjustments are complete, use the standby button to turn off the set. The adjustment values will be stored

at this point.

V-LIN

Adjust the vertical linearity control so that the picture centring is as shown in figure 5.

V-AMP

Adjust the vertical amplitude control so that the picture overscans as shown in figure 6.

V-CENT

Adjust the vertical centring control so that the picture is centred as shown in figure 7.

H-CENT

Adjust the horizontal centring control so that the picture is centred as shown in figure 8.

Fig. 5

Fig. 6

Fig. 7

Fig. 8