3 Alignments and Adjustments
3-1
3 Alignments and Adjustments
3-1 Service Instruction
1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.
4. 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.
5. Connect the TV only to an AC power source with voltage and frequency as specified on
the backcover nameplate.
6. 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.
7. To protect aganist shock hazard, use an isolation transform.
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 ...