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 LE37M87BDX
Page 21: ...7 Block Diagrams 7 2 Memo ...
Page 24: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 25: ...13 Circuit Descriptions 13 4 13 3 IP Board ...
Page 31: ...11 Disassembly and Reassembly 11 6 Memo ...
Page 77: ...10 Operating Instructions and Installation 10 6 Memo ...
Page 79: ...12 PCB Diagram 12 2 12 2 IP Board Diagram ...
Page 83: ...Memo 1 Precautions 1 4 ...
Page 91: ...2 Product Specifications 2 8 Memo ...
Page 99: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1 ...
Page 100: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2 ...
Page 101: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3 ...
Page 121: ...4 Troubleshooting 4 4 WAVEFORMS 1 R G B Output Signal of IC2001 ...
Page 123: ...4 Troubleshooting 4 6 2 Digital Output Data of IC4001 3 Signal of HDMI Data ...
Page 125: ...4 Troubleshooting 4 8 WAVEFORMS 4 Tuner_CVBS Output Signal 3 CVBS Output Signal ...
Page 127: ...4 Troubleshooting 4 10 WAVEFORMS 4 CVBS Output Signal ...
Page 132: ...8 1 8 Wiring Diagrams 8 Wiring Diagram 8 1 Wiring Diagram ...
Page 137: ...8 Wiring Diagrams 8 6 8 4 Power Board Layout ...
Page 140: ...8 9 8 Wiring Diagrams ...
Page 143: ...8 Wiring Diagrams 8 12 Memo ...