Philips 4000 Service Manual page 29

PHILIPS 4000
Page 1 (KEYBOARD):
ERROR: If nothing appears on display; check the interface board and the flat cable (JP21 Electrical diagram).
ERROR:
- If during the movement the backlight remain green check the wiring (JP1 Electrical diagram) from the
interface board and the display (HD Models);
-If during the movement on the riht the backlight remain white, check the wiring (JP1 Electrical diagram)
from the interface board and the display (EP Models);
ERROR: The name displayed is wrong; check the position of jumper in interface. It must be the same of ma-
chine model.
Page 2 (INPUTS): This test directs the correct operation of the sensor.
this test directs the correct operation of the keyboard.
Start condition
Press buttons from 1 to 7
Only when a button is pressed a O appears on the relative position of button
pressed.
In the middle of display appears the name of the button pressed.
Pressing buttons on the left the backlight color changes from
GREEN to YELLOW for HD Models, it remains white for EP Models.
Pressing button on the right the backlight color changes from
GREEN to RED for HD Models, WHITE to RED for EP Models.
When a button is pressed, also the Stand-By led (RED) turn ON.
Note: Press button Z7 as the last once, since it makes change the test page.
Note: If 2 or more buttons are pressed the name that appears on display could
be wrong.
Press Z7 "
The machine passes to the level 2 (INPUTS)
Start condition
Warning: if the Lever sensor is not connected to interface will appear a warn-
ing message, screen yellow for HD models and Red for EP models.
" to move to the next screen
04 DIAGNOSTIC MODE
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