Specifications

Troubleshooting Symptom Charts/Raster
(Continued)
- 13
Raster
(Continued)
Oversized raster;
menu bar might be
partially cut off;
adjustments have no
effect on raster
Replace main deflection board, and without disconnecting
microprocessor board, check its revision level.
Important:
On the component side of the board, look for a white
mark on the upper left corner and a 9-digit number that ends in
-11, -12, or -13.
If you see “-12” and a white mark or “-13” and no white
mark, you have an updated board. No board replacement required.
If you see “-11” or “-12” and no white mark, replace the
microprocessor board with an updated board after downloading
settings as described in “Display Setting Restoration” in this
chapter.
Caution:
To prevent data loss or corruption, always save
EEPROM settings before you replace the microprocessor board.