4-25
4. Troubleshooting
4-2. Alignments and Adjustments
4-2-1. General Alignment Instuction
Usually, a color LCD-TV needs only slight touch-up adjustment upon installation.
1.
Check the basic characteristics such as height, horizontal and vertical sync.
Use the specified test equipment or its equivalent.
2.
Correct impedance matching is essential.
3.
Avoid overload. Excessive signal from a sweep generator might overload the front-end
4.
of the TV. When inserting signal markers, do not allow the marker generator to distort test result.
Connect the TV only to an AC power source with voltage and frequency as specified on
5.
the backcover nameplate.
Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure
6.
that the power cord is disconnected before replacing any parts.
To protect against shock hazard, use an isolation transformer.
7.
Summary of Contents for LE26C45 Series
Page 28: ...4 3 4 Troubleshooting ...
Page 30: ...4 5 4 Troubleshooting ...
Page 31: ...4 6 4 Troubleshooting WAVEFORMS 1 PC input V sink H sink R G B 2 LVDS output ...
Page 33: ...4 8 4 Troubleshooting ...
Page 34: ...4 9 4 Troubleshooting WAVEFORMS 3 HDMI input RX_Data RX_Clk 2 LVDS output ...
Page 36: ...4 11 4 Troubleshooting ...
Page 37: ...4 12 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Page 39: ...4 14 4 Troubleshooting ...
Page 40: ...4 15 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Page 42: ...4 17 4 Troubleshooting ...
Page 43: ...4 18 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output ...
Page 45: ...4 20 4 Troubleshooting ...
Page 46: ...4 21 4 Troubleshooting WAVEFORMS 5 Compnent_Y Gray scale Pb Pr Color bar 2 LVDS output ...
Page 48: ...4 23 4 Troubleshooting ...
Page 49: ...4 24 4 Troubleshooting WAVEFORMS 6 Speaker out ...
Page 66: ...4 41 4 Troubleshooting 4 9 3 Main Inner 2 4 9 4 Main Inner 3 ...
Page 67: ...4 42 4 Troubleshooting 4 9 5 Main Bottom ...
Page 68: ...4 43 4 Troubleshooting 4 9 6 Power_32 SMPS LC5XX 4 9 7 Power_37 SMPS LC5XX ...
Page 69: ...4 44 4 Troubleshooting 4 9 8 Power_40 SMPS LC5XX 4 9 9 Power_46 SMPS LC5XX ...
Page 70: ...4 45 4 Troubleshooting 4 9 10 Power_26 SMPS LC45X 4 9 11 Power_32 SMPS LC45X ...