Philips 40PFL5505D/F7, Руководство по обслуживанию

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8-1 PL10.4TR
TROUBLESHOOTING
The power cannot be turned on.
FLOW CHART NO.1
Is 5V voltage supplied to Pin(6) of CN3002 on the
Digital Main CBA Unit?
Is 3V voltage supplied to Pin(3) of CN3002 on the
Digital Main CBA Unit?
Replace Power Supply CBA Unit.
Replace Power Supply CBA Unit.
Yes
Yes
Replace Digital Main CBA Unit.
Replace Digital Main CBA Unit.
No
No
Yes
When pressing power switch on the unit, LED is lighting
or flashing? See FLOW CHART NO.2 <The key operation is not
functioning.>
No
Yes
When pressing power switch on the remote control unit,
LED is lighting or flashing?
See FLOW CHART NO.3 <No operation is possible
from remote control unit. (Operation is possible from
the unit.)>
No
Yes
Yes
Is 3.3V voltage supplied to Pin(3) of CN3004 on the
Digital Main CBA Unit?
No
Yes
Check the line between Pin(1) of CN4001 and Pin(3)
of CN3004, and service it if defective.
Is 3.3V voltage supplied to Pin(1) of CN4001 on the
Function CBA Unit?
No
Replace Function CBA Unit.
Is the Pin(3) voltage of CN4001 0V when pressing
power switch?
No
Check the line between Pin(3) of CN4001 and Pin(6)
of CN3004, and service it if defective.
The key operation is not functioning.
FLOW CHART NO.2
No operation is possible from remote control unit. (Operation is possible from the unit.)
FLOW CHART NO.3
Is 3.3V voltage supplied to Pin(3) of CN4052 on the
IR Sensor CBA Unit? Check AL+3.3V line and service it if defective.
Yes
Yes
Replace IR Sensor CBA Unit.
No
Yes
Is the "L" pulse sent out Pin(2) of CN4052 on the
IR Sensor CBA Unit?
No
Check CL3004 and service it if defective.
No
Is the "L" pulse sent out Pin(2) of CN3004 on the
Digital Main CBA Unit?
Replace Digital Main CBA Unit.