InFocus LP340B - Keypad Problems

LP340/340B/350 Service Manual 100
Keypad Problems
Keypad does not respond to key presses.
Is a known good
keypad available for
substitution?
No
Substitute a
known good
controller ECA.
No
Replace the
keypad.
Yes
Replace the
controller ECA.
Yes
Substitute the
good keypad.
Does the
projector respond
to key presses?
No
Replace the
controller ECA.
Yes
Replace the
keypad.
Does the
projector respond
to key presses?