Philips 40PFL4707/F7 - Connecting Devices; HDMI Connection Types

8-3 PL12.3ATR
[Video Signal Section]
No
Is the "L" pulse supplied to Pin(1) terminal of remote
control receiver (RS4051) when the infrared remote
control is activated?
Ye s
Is the "L" pulse supplied to Pin(5) of CN4051?
Ye s
Is approximately +3.3V voltage supplied to Pin(3)
terminal of the remote control receiver (RS4051)?
No
FLOW CHART NO.2
Check AL+3.3V line and repair it if defective.
No
Replace the remote control receiver (RS4051)
or the remote control unit.
Check the line between Pin(1) of remote control
receiver (RS4051) and Pin(5) of CN4051.
Repair it if defective.
Ye s
Replace Digital Main CBA Unit.
No operation is possible from the remote control unit. (Operation is possible from the unit.)
Picture does not appear normally.
FLOW CHART NO.3
Is
approximately +
3.3V voltage supplied to Pin(11) of
CN501?
Digital Main CBA Unit or LCD Module Assembly ma
y
be defective.
Check and replace these parts.
No
Ye s
Is approximately +12V voltage supplied to
Pin(16, 17, 22, 23) of CN501?
See FLOW CHART NO.5 <P-ON+12V is not output.
[Power Supply Section]>
See FLOW CHART NO.8 <AL+3.3V is not output.
[Power Supply Section]>
No
Ye s
When pressing each switches (SW4001~SW4006),
does the Pin(6) voltage of CN4052 decrease?
Ye s
The key operation is not functioning.
FLOW CHART NO.1
Are the contact point and installation state of the key
switches (SW4001~SW4006) normal?
Re-install the switches (SW4001~SW4006) correctly
or replace the poor switch.
Check the switches (SW4001~SW4006) and their
periphery. Repair it if defective.
Ye s
Replace Digital Main CBA Unit.
No
No