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CSA 803A Service Manual
5Ć17
ăStep 40:ăIf any of the color displays (that is, the Red Display, Green
Disply,orBlue Display) showed severe color impurities, then perform
the following to restore the color purity:
H Ensure that the CSA 803A environment is free of all external magnetĆ
ic fields. For example, a magnetic screwdriver near the CSA 803A
could cause color impurities on the screen.
H Set the ON/STANDBY switch to STANDBY.
H Wait 10 seconds, then set the ON/STANDBY switch to ON.
H Examine the color displays again, and verify that the color impurities
are removed.
NOTE
When the CSA 803A is moved in the earth's magnetic field, color
impurities will appear on the display. This is normal. To remove the
impurity, repeat Step 40.
ăStep 41:ăSet the ON/STANDBY switch to STANDBY.
ăStep 42:ăReplace the CRT Socket board cover and the CRT cover.