Panasonic PT52LCX66 Service Manual - Page 28

Lamp Does Not Light Up - troubleshooting

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PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16 LAMP DOES NOT LIGHT UP Plug in the AC Cord. Turn the power ON. Note: 1. Before doing this troubleshooting, confirm that all connector cables in the unit are connected to the connectors correctly. 2. When doing troubleshooting over again, be sure to turn the power off and unplug the AC Cord. 3. If the same error indication occurs repeatedly, after several attempts, proceed to the next step. Is there a snap sound of the Relay turning ON? (Relay: RL1902/RL1903 on the Power P.C.B.) YES NO Replace the Power P.C.B. Does the Power LED (D6801) on the NO Power Switch P.C.B. flash green? YES Error 1) ~ 13) occurs. (Refer to "ERROR INDICATION INFORMATION") Refer to "How to solve problems indicated by the Error Indication of LED." Perform troubleshooting. The Power LED (D6801) goes off or flashes green. Replace the Power P.C.B. If still NG, replace the TV Unit (Main P.C.B.). 28

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LAMP DOES NOT LIGHT UP
Plug in the AC Cord.
Note:
1. Before doing this troubleshooting, confirm that all
connector cables in the unit are connected to the
connectors correctly.
2.When doing troubleshooting over again, be sure to
turn the power off and unplug the AC Cord.
3.If the same error indication occurs repeatedly,
after several attempts, proceed to the next step.
Is there a snap sound of the Relay
turning ON?
(Relay: RL1902/RL1903 on the Power
P.C.B.)
YES
NO
YES
NO
Does the Power LED (D6801) on the
Power Switch P.C.B. flash green?
Replace the Power P.C.B.
Turn the power ON.
Error 1) ~ 13) occurs.
(Refer to
"ERROR INDICATION
INFORMATION"
)
Refer to "
How to solve problems
indicated by the Error Indication
of LED.
"
Perform troubleshooting.
The Power LED (D6801) goes off
or flashes green.
Replace the Power P.C.B.
If still NG, replace the TV Unit
(Main P.C.B.).
PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
28