Panasonic PT_AT6000E, Service Manual

Page: 23 / 75

A Replace the A-P.C.Board.
Check the attachment of the Lamp cover.
Follow the section
"Lamp does not turn ON (LAMP indicator not lit)".
Follow the section
"Lamp does not turn ON. (LAMP indicator is lit)".
Follow the section
"Lamp does not turn ON. (LAMP indicator is flashing)".
A Connector A5 pin 14 changes from Low to Hi. A
Check the connector A5(pin 14) and around them.
(Q1019, C1201, R1313)
A
・
A short has occurred in terminals 1(+3.3V)-4
Check R1558,C1204 (3.3V line)
・
A short has occurred in terminals 7(+5V)-8
Check C1205,C1206 (5V line)
・
A short has occurred in terminals 9(+13V)-10
Check C1207 (13V line)
・
A short has occurred in terminals 11(+17V)-12
Check C1210 (17V line)
Replace the P-P.C.Board, then confirm the projector
becomes changing from standby mode to an
operating mode.
Only power indicator is lit
Disconnect the connector A5 check and between
terminal 1-4, 7-8, 9-10, 11-12.
Short circuit?
Replace the B-P.C.Board, then confirm the projector
becomes changing from standby mode to an
operating mode.

A shutdown occurs.
Check the indicators
All indicators are not lit.

The projector does not change from standby mode to an operating mode.
(The power indicator does not change from red to green.)
Confirm every connector (especially, A5) is connected
and the lamp unit cover is installed properly.
Connect the connectors or install the lamp cover properly.
A
Lamp indicator is lit
Lamp indicator is flashing
Follow the section
"Lamp does not turn ON. (TEMP indicator is flashing)".
Replace the temperature sensor each.
If impossible to set the temperature control of the microcomputer has failed, the thermal fuse will disconnect,
shutting off the power supply.
Temp indicator is flashing
A Main microprocessor IC1046 checks.
NO
NO
YES
NO
YES
YES
NO
NG
OK
INF - 17