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INF-20
SECTION 1 SERVICE INFORMATION
■ Lamp does not turn ON.
Confirm the connection of each connector on A-P.C Board
and lamp.
and lamp.
Confirm the lamp fixing screws.
NG
Connect the cables properly
Confirm the lamp condition
NG
Replace the lamp
Is each thermal sensor operating in normal?
NG
Check each thermal sensor and connection
A
Confirm that the short circuit between terminals (K6D_1A) and
(K6D_2A). (DC 380V is observed in normal)
(K6D_2A). (DC 380V is observed in normal)
NG
A
Check or replace [P] P.C.Board
Is each fan rotating when the projector turns on?
NG
Check each fan and connection
A
Confirm that the voltage at pin (2) of connector [K8R] changes
from Low to Hi when the power is ON.
from Low to Hi when the power is ON.
NG
A
Check or replace [A] P.C.Board
A
Confirm that the voltage at pin (1) of connector [K8R] changes
from Low to Hi when the power is ON.
from Low to Hi when the power is ON.
NG
A
Check or replace [A] P.C.Board
OK
OK
OK
OK
OK
OK
OK
BQ Replace [BQ] P.C.Board
BQ
Confirm the voltages between pins of connector [CN1] below;
(1) - (3) DC 380V ± 20V
(3) - (4) DC 16.5V ± 1.6V
NG
BQ Check the cable [ZK6D].
P
Confirm that the short circuit between terminals (K6D_3A) and
(K6D_2A). (DC 16.5V is observed in normal)
(K6D_2A). (DC 16.5V is observed in normal)
NG
P
Check or replace [P] P.C.Board
OK
OK
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