FUNAI 32FL532/10, Руководство по обслуживанию

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8-1 A23F0TR
TROUBLESHOOTING
The power cannot be turned on.
FLOW CHART NO.1
Is approxi5V voltage supplied to Pin(1) of CN2
on the Power Supply CBA Unit?
Is approxi3.3V voltage supplied to Pin(2) of
CN2 on the Digital Main CBA Unit?
Replace Power Supply CBA Unit.
Check F101 and service it if defective.
Or replace Power Supply CBA Unit.
Yes
Replace Digital Main CBA Unit.
No
No
Yes
When touching power button on the unit, is the LED
turning off?
See FLOW CHART NO.2 <The key operation is not
functioning.>
No
Yes
When pressing power switch on the remote control unit,
is the LED turning off?
See FLOW CHART NO.3 <No operation is possible
from remote control unit. (Operation is possible from
the unit.)>
No
Yes
Yes
Replace Power Supply CBA Unit.
Replace Power Supply CBA Unit.
Is approxi5V voltage supplied to Pin(1) of CN1
on the Function CBA Unit?
No
Replace Function CBA Unit.
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 approxi5V voltage supplied to Pin(1) of CN1
on the Function CBA Unit?
Yes
Yes
Replace Function CBA Unit.
No
Yes
Is the "L" pulse sent out to Pin(3) of CN1 on the
Function CBA Unit?
No
Check the connector (CN1, CN9), wire assembly and
service it if defective. Or replace Function CBA Unit.
No
Is the "L" pulse sent out to Pin(4) of CN9 on the Digital
Main CBA Unit?
Replace Digital Main CBA Unit.