21HM-10F
10
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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
Summary of Contents for 21HM-10F
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Page 28: ...21HM 10F SCHEMATIC DIAGRAM OF CRT F7341N0 00 Version GA 1E CHASSIS MODEL 21HM 10F ...
Page 29: ...21HM 10F Page 29 SCHEMATIC DIAGRAM OF MOTHER UNIT F7340N4 00 Version ...
Page 30: ...SCHEMATIC DIAGRAM OF MOTHER UNIT F7340N4 00 Version Page 30 Page 28 ...
Page 31: ...21HM 10F SCHEMATIC DIAGRAM OF MOTHER UNIT F7340N4 00 Version Page 29 ...
Page 32: ...21HM 10F SCHEMATIC DIAGRAM OF SECAM UNIT F7343N0 00 Version ...
