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 LE37M86BDX
Page 117: ...11 Disassembly and Reassembly 11 6 Memo ...
Page 120: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 121: ...13 Circuit Descriptions 13 4 13 3 IP Board ...
Page 125: ...Memo 1 Precautions 1 4 ...
Page 127: ...12 PCB Diagram 12 2 12 2 IP Board Diagram ...
Page 133: ...10 Operating Instructions and Installation 10 6 Memo ...
Page 134: ...8 1 8 Wiring Diagrams 8 Wiring Diagram 8 1 Wiring Diagram ...
Page 139: ...8 Wiring Diagrams 8 6 8 4 Power Board Layout ...
Page 142: ...8 9 8 Wiring Diagrams ...
Page 145: ...8 Wiring Diagrams 8 12 Memo ...
Page 153: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1 ...
Page 154: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2 ...
Page 155: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3 ...
Page 191: ...2 Product Specifications 2 8 Memo ...
Page 195: ...4 Troubleshooting 4 4 WAVEFORMS 1 R G B Output Signal of IC2001 ...
Page 197: ...4 Troubleshooting 4 6 2 Digital Output Data of IC4001 3 Signal of HDMI Data ...
Page 199: ...4 Troubleshooting 4 8 WAVEFORMS 4 Tuner_CVBS Output Signal 3 CVBS Output Signal ...
Page 201: ...4 Troubleshooting 4 10 WAVEFORMS 4 CVBS Output Signal ...
Page 207: ...7 Block Diagrams 7 2 Memo ...