4-1
4. Troubleshooting
4. Troubleshooting
4-1. Troubleshooting
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.
Check the power input to the Main Board.
Check the Power input to the FRC(Frame Rate Conversion) Board.
Check internal Pattern both of FRC and FBE3 if there is some picture noise.
FRC: Factory mode(Info - MENU - MUTE - power on) -> Control ->Test Pattern -> FRC PATT_BeforeDDR / FRC
PATT_AfterDDR -> Press right button of Remocon.
FBE: Factory mode(Info - MENU - MUTE - power on_ ->Control -> Test Pattern -> FBE Pattern Sel ->
Press right button of Remocon.
Case1: FBE ok,FRC NG: change the FRC Board Case2: FBE NG: change the main Board
Check the LED lamp for source button on front
If this LED blank 100mS frequently then FRC board is defective(communication problem via Main board)
in this case change the FRC board
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Summary of Contents for LE37B55 series
Page 7: ...1 4 1 Precautions Memo...
Page 39: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B H_sync input signal of IC6001 SDP84...
Page 41: ...4 6 4 Troubleshooting WAVEFORMS 2 Digital Output Data 3 Signal of HDMI Data...
Page 43: ...4 8 4 Troubleshooting WAVEFORMS 3 CVBS Output Signal 4 Tuner_CVBS Output Signal...
Page 45: ...4 10 4 Troubleshooting WAVEFORMS 4 CVBS Output Signal at C6852 C6853 C6854...
Page 475: ...5 410 5 Exploded View Part List...
