Service manual

Nacho Family Service Manual 5
Power Diagnostics, part 1
Plug the projector into a good power source
with a known good power cord.
Yes
Replace controller ECA
(page 44)
NoVoltages OK?
Does the LED light a
steady green and is
the Power button
illuminated?
No, the LED and
the Power button
did not light.
Go to Power Diagnostics,
part 2
Yes
Replace top enclosure
(includes the keypad ECA)
(page 31)
A solid green LED
means the projector
is either waiting for
a command or is
operating normally.
A flashing green
LED means the
projector is either
attempting to light
the lamp or is
shutting down.
Verify correct voltages at the
controller/power supply
connector.
(page 17)
Check the lamp door.
Check the interlock
switch.
(page 24)
Make sure the direct
connectors on the
controller ECA are fully
engaged.
(page 47)
Confirm that the
keypad flex cable is
plugged in.
(page 31)
Replace
power supply
(page 49)
Confirm that unit is good
by starting again.
Solve the
problem?
Yes
Confirm the unit is
good by starting
again.