Samsung LE40F86BD Service Manual page 225

Chassis gpy40sen, gpy46sen, grz52sen, grz70sen
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4. Troubleshooting
4-1. Troubleshooting
1.
Check the various cable connections first.
• Check to see if there is a burnt or damaged cable.
• Check to see if there is a disconnected or loose cable connection.
• Check to see if the cables are connected according to the connection diagram.
2.
Check the power input to the Main Board.
3.
Check the Power input to the FRC(Frame Rate Conversion) Board.
Check internal Pattern both of FRC and FBE2 if there is some picture noise.
FRC: Factory mode(Info - MENU - MUTE - power on) -> 5. Option Block -> FRC Option-> FRCS_PRE_PATT_SEL->
Press right button of Remocon.
FRC-M (Micom name : T-PONFMPEUMD : Factory Mode(Info - MENU - MUTE - power on) -> 5. Option Block ->
FRC(Micronas) -> TP Before DDR and TP After DDR -> Press right Button of Remocon.
FBE2: Factory mode(Info - MENU - MUTE - power on_ -> 5. Option Block -> FBE2-> Pattern Select->
Press right button of Remocon.
Case1: FBE2 ok,FRC NG: change the FRC Board
Check the LED lamp for source button on front
If this LED blank frequently then FRC board is defective(communication problem via Main board)
in this case change the FRC board
Case2: FBE2 NG, FRC NG: change the main Board
4. Troubleshooting
4-1

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