37
XV-Z12000
NO
YES
YES
The lamp lights.
NO
NO
YES
Check the 3.3 V power supply.
NO
YES
NO
YES
NO
YES
NO
YES
The power lamp does not light 
at all.
Check the power BU6V circuit.
IC2005 is defective.
When plugged into an AC 
socket, the power lamp turns 
red, but it goes out soon.
Check the lamp door and the lamp switch. 
Try pressing the red button on the bimetal 
switch. Check the power outputs.
The power lamp flashes slowly.
The lamp turns blue, but it goes 
out in about 15 seconds. (The 
stand-by indicator turns on.)
Check the 13 V power supply and the cooling 
fan drive circuit.
The lamp flashes blue, but it 
lights solid red after about one 
minute.
The lamp or the ballast unit is defective.
(Remove the top cabinet and 
check.) The lamp flashes blue, 
but the temperature monitor 
lights in about 25 seconds. The 
lamp never lights.
The harness [CA] or the ballast unit is 
defective.
The lamp flashes blue, but the 
temperature monitor display 
lights in about 25 seconds. The 
lamp lights only once.
Check the LAMP FLAG signal and the LAMP 
LIT signal line.
Go to "The lamp is flashing blue 
continuously".