4 Troubleshooting
4-7
4-2-4 No Picture (Tuner_CVBS)
Dose the signal appear
at R2207?
Check a B+ voltage (#3 of Tuner) 5V,
change a main PCB ass'y
Yes
Does the signal appear at
C2085 of IC2001?
Change a main PCB ass'y.
Yes
Does the digital data appear at
output of RA2008~2013?
Check a IC4001.
Change a main PCB ass'y.
Yes
Power Indicator is off.
Lamp on, no picure.
No
Connect the RF cable and
check RF signal.
No
No
No
Yes
Check a LVDS cable?
Replacea lcd panel?
Please, Call to Samsung Co. LTD.
No
4
4
3
Summary of Contents for LE23R86BD
Page 9: ...Memo 1 Precautions 1 4 ...
Page 25: ...11 Disassembly and Reassembly 11 6 Memo ...
Page 26: ...12 PCB Diagram 12 1 12 PCB Diagram 12 1 Main PCB Diagram FOR READY ...
Page 27: ...12 PCB Diagram 12 2 12 2 Main PCB Diagram FOR IDTV ...
Page 28: ...12 PCB Diagram 12 3 12 3 23 SMPS ...
Page 29: ...12 PCB Diagram 12 4 12 4 26 32 SMPS ...
Page 30: ...12 PCB Diagram 12 5 12 5 37 SMPS ...
Page 31: ...12 PCB Diagram 12 6 12 6 40 IP Board ...
Page 32: ...12 PCB Diagram 12 7 12 7 DIMMING BOARD ...
Page 33: ...12 PCB Diagram 12 8 Memo ...
Page 36: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 51: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1 ...
Page 52: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2 ...
Page 53: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3 ...
Page 59: ...Memo 14 Reference Infomation 14 16 ...
Page 71: ...2 Product Specifications 2 12 Memo ...
Page 89: ...4 Troubleshooting 4 4 WAVEFORMS 1 R G B Output Signal of IC2001 ...
Page 91: ...4 Troubleshooting 4 6 2 Digital Output Data of IC4001 3 Signal of HDMI Data ...
Page 93: ...4 Troubleshooting 4 8 WAVEFORMS 4 Tuner_CVBS Output Signal 3 CVBS Output Signal ...
Page 95: ...4 Troubleshooting 4 10 WAVEFORMS 4 CVBS Output Signal ...
Page 305: ...7 Block Diagrams 7 2 Memo ...
Page 325: ...9 Schematic Diagrams 9 12 Memo ...