Troubleshooting - Samsung UN46B8000XFXZA Service Manual

Chassis n73a
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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 internal patterns from both the FRC and FBE3 options.
FRC: Factory mode(mute 1 - 8- 2 power on when TV is "standby on ") -> Control -> Test Pattern -> FRC PATT_
BeforeDDR / AfterDDR
* FRCQ pattern is created by FRCQ IC(T-con)
FBE3: Factory mode(mute 1 - 8- 2 power on when TV is "standby on ") -> Control -> Test Pattern ->FBE Pattern Sel
* Main pattern is created by Main IC(Chelsea)
< 46inch model >
* FRC : frame rate conversion chip It is for 240hz.
FRC PATT
BeforeDDR OK?
Yes
FBE 3 OK?
Yes
Check the Source
SMPS
T-con
Main
No
No
Change the main board
FRC Before DDR(It makes test
patterns before processing
FRC setting.)
FRC
FRC After DDR(It makes last test
pattern after processing
FRC setting.)
FRC PATT
No
AfterDDR OK?
Yes
Check or change
the T-con
Main board
(FBE3)
4. Troubleshooting
Change T-con or
Check Panel
4-1

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