4 Troubleshooting
4-3
4-2-2 No Video (Analog PC Signal)
Check the PC source and
check the connection of
DSUB?
Input an analog PC signal.
check the connected cable.
Yes
Does the signal appear at
#R25, T25, T24, U24, V25,
V26(R,G,SOG,B,V,H) of
IC602?
Check JA306, PC cable.
Change the PC cable.
Change the main PCB Ass'y.
Yes
Power Indicator is off.
Lamp on, no video.
No
No
1
Does the digital data appear at
output of R916_FBE ~
R921FBE?
Check IC602.
Change the main PCB Ass'y.
Yes
Does the digital data appearat
output of R1001_FBE ~
R1017_FBE?
Check IC 901_FBE
Change the main PCB Ass'y.
Yes
No
No
2
3
Yes
Check the LVDS cable?
Replace the LCD panel?
Please, call to Samsung Co. LTD
No
Summary of Contents for LN23R71BAX
Page 22: ...3 Alignments and Adjustments 3 11 Picture 4 3 W B Patten ...
Page 29: ...4 Troubleshooting 4 4 WAVEFORMS 1 2 PC Input V Sync H Sync 3 LVDS Out CLK ...
Page 31: ...4 Troubleshooting 4 6 4 5 HDMI Input CLK WAVEFORMS ...
Page 33: ...4 Troubleshooting 4 8 WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar ...
Page 35: ...4 Troubleshooting 4 10 WAVEFORMS 7 TS DATA Out CLK DATA 0 8 Eagle Out CLK H Sync ...
Page 38: ...4 Troubleshooting 4 13 WAVEFORMS 9 S VIDEO Input Y C ...
Page 40: ...4 Troubleshooting 4 15 WAVEFORMS 10 Component Input Y Pb ...
Page 137: ...10 Operating Instructions and Installation 10 3 10 3 Remote Control ...
Page 144: ...12 PCB Diagram 12 1 12 PCB Diagram 12 1 Main PCB Diagram ...
Page 145: ...12 PCB Diagram 12 2 12 2 Power PCB Diagram 23 ...
Page 146: ...12 PCB Diagram 12 3 12 3 Power PCB Diagram 26 32 ...
Page 147: ...12 PCB Diagram 12 4 12 4 Power PCB Diagram 40 ...
Page 150: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 161: ...14 Reference Infomation 14 7 14 3 2 Supported Modes 1 ...
Page 162: ...14 Reference Infomation 14 8 14 3 3 Supported Modes 2 ...
Page 163: ...14 Reference Infomation 14 9 14 3 4 Supported Modes 3 ...