10 10
SENSOR CALIBRATION TEST (FOR DISPLAYBOARD) (continued)Figure 4 - SENSOR LOCATION BEHIND OVERLAY
CALIBRATION
PROCEDURE
1. Insert the CALIBRATION ANDTEST overlay
(L9660-255). If this overlay is not available, turn the
machine ON with no overlay in place and refer to
Figure 4 to identify the keys. The overlay ID number
is momentarily displayed if the overlay is in place.
The number on the display should be 255.
2. When the display reads SELECT A FUNCTION,
press key #34 - OVERLAY CALIBRATE. The OVER-
LAY CALIBRATE light turns on and momentarily the
display reads:
OVERLAY SENSOR
CALIBRATION
Then the display changes to read:
INSERT REF OVRLY
PRESS ENTER . . .
Insert the SETUP overlay (L9660).
4. Press key #133 - ENTER. This key is not identified
on the SETUP overlay. It is located in the lower
right hand corner. Refer to Figure 4 above for loca-
tion. The machine will begin to calibrate the eight
overlay sensors.
5. If one of the sensors could not be calibrated, the
display reads:
SENSOR X FAILED
ENTER TO RETRY
Make sure the overlay is lined up properly and
press key #133 - ENTER. This will cause the
machine to try to calibrate the sensor again. If a
particular sensor continues to fail, clean the sen-
sors or remove the case top and make sure the
DISPLAY board is seated all the way down on the
mounting posts. Also check wiring connections. If
calibration still fails, record the calibration num-
bers, if possible, using the QUICK VOLTAGECALI-
BRATION procedure before removing the DISPLAY
board.
6. If the calibration procedure is successful, the dis-
play reads:
CALIBRATION
SUCCESSFUL
After a few seconds the display changes to read:
INSERT CAL OVRLY
PRESS ENTER . . .
7. Press key #133 - ENTER. the OVERLAY CALI-
BRATE LED turns off, the machine exits the OVER-
LAY CALIBRATE function and the display reads:
SELECT A FUNCTION
8. Turn the power switch SW1 to the OFF position. To
use the machine, place the appropriate overlay in
position and turn power switch SW1 to the ON
position.
NOTE: Turn power switch SW1 to the OFF position
and get the overlay that was not recognized by
the power wave. Replace the TEST overlay
with this overlay and turn the machine ON. The
machine should recognize the overlay now. If it
does not, the overlay is faulty.
POWER WAVE CALIBRATION
(32)
(34)
(36)
(64)
(33)
(35)
(37)
(65)
(67)
(96)
(97)
(98)
(99)
(100)
(101) (132) (133)
(128)
(130)
(129)
(131)