4-15
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.
Check the basic characteristics such as height, horizontal and vertical sync.
Use the specified test equipment or its equivalent.
Correct impedance matching is essential.
Avoid overload. Excessive signal from a sweep generator might overload the front-end
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
the backcover nameplate.
Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure
that the power cord is disconnected before replacing any parts.
To protect against shock hazard, use an isolation transformer.
1.
2.
3.
4.
5.
6.
7.
Summary of Contents for LE26A451C1HX
Page 133: ...3 6 3 Disassembly and Reassemble Memo ...
Page 137: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B Output Signal ...
Page 139: ...4 6 4 Troubleshooting WAVEFORMS 2 Digital Output Data 3 Signal of HDMI Data ...
Page 141: ...4 8 4 Troubleshooting WAVEFORMS 3 CVBS Output Signal 4 Tuner_CVBS Output Signal ...
Page 143: ...4 10 4 Troubleshooting WAVEFORMS 4 CVBS Output Signal ...
Page 145: ...4 12 4 Troubleshooting WAVEFORMS 2 Digital Output Data 5 Analog Signal Y C ...
Page 158: ...4 25 4 Troubleshooting 4 8 2 Software Upgrade Flash Downloader Flash Downloader ...
Page 163: ...6 4 6 Wiring Diagram 6 2 Wiring Picture ...
Page 169: ...1 4 1 Precautions Memo ...