Panasonic PT-AE8000U Service Manual page 24

 Lamp does not turn ON (LAMP indicator not lit)
Check each cable connection.
Check for loose screws of lamp unit fixing.
When turn on the power, Does the rotation of each fan?
After keeping MAIN POWER in OFF condition for 3 minutes
or more, turn ON the MAIN POWER and press POWER
button. Confirm the ballast to generate a high-voltage pulse
train and emits a sparking sound.
Confirm that no short circuit has occurred between
P connector P2 pins 1 and 3.
(Normally, connector P2 pin 1 outputs 380V±20V DC.)
Confirm that no short circuit has occurred between
P connector P2 pins 4 and 3.
(Normally, connector P2 pin 4 outputs 15V±1V DC.)
Q Replace the Q-P.C.Board.
Check MAIN/STB output signal of the IC1014
A
(sub microcomputer) pin 29.
A Check Q1019 and around them.
OK
OK
OK
OK
OK
OK
NG
Connect properly.
Tighten the lamp unit fixing screws (2 screws).
Check IC1017 and around them.
NG
A Check fan connector. If the connection is properly
and the fan is not rotated, replace it.
NG
When pressing the POWER button, connector A5
A
pin 14 changes from LOW to HIGH.
OK
When pressing the POWER button, connector A4
A
pin 2 changes from LOW to HIGH.
NG
A Check Q1016 and around them.
P Replace the P-P.C.Board.
NG
NG
A Replace the IC1014.
INF - 18
OK
NG
NG