Samsung NX58R4311SS Service Manual page 39

4. Troubleshooting
4-1 Failure Display Codes
Failure code
-SE-
(Key pad is pressed for 10 minutes.)
- SE -
*Disconnect power.
*Take out Membrane Keypad from the PCB.
*Check whether between connector
(CN301) pin and pin on main PCB have a
short circuit.
Ok
*Make sure whether between Membrane
keypad And Membrane Bracket have a
short circuit.
Ok
*Replace Membrane & Board.
END
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CAUSE
Shorted Key
No
No
<Membrane & Bracket Assembly>
39
SOLUTION
1) Check the membrane wire harness to make
sure it is properly connected with PCB
2) Disconnect the membrane wire harness.
Check the harness, Membrane and PCB for
short circuits.
3) If there is not a problem with connector on
main PCB and membrane harness, replace
the PCB.
PCB (Back)
PCB (Back)
Back Side of PCB Connector
(CN301)
* Repair the area of circuit
having short Between
connector(CN301) pins on
PCB.
* Repair the PCB circuitry or
replace the Membrane.
END
* Replace Membrane keypad
END
PCB Touch Control (Back)