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 LE23R87BD
Page 37: ...11 Disassembly and Reassembly 11 6 Memo ...
Page 40: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 79: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1 ...
Page 80: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2 ...
Page 81: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3 ...
Page 87: ...Memo 14 Reference Infomation 14 16 ...
Page 89: ...7 Block Diagrams 7 2 Memo ...
Page 101: ...2 Product Specifications 2 12 Memo ...
Page 112: ...12 PCB Diagram 12 1 12 PCB Diagram 12 1 Main PCB Diagram FOR READY ...
Page 113: ...12 PCB Diagram 12 2 12 2 Main PCB Diagram FOR IDTV ...
Page 114: ...12 PCB Diagram 12 3 12 3 23 SMPS ...
Page 115: ...12 PCB Diagram 12 4 12 4 26 32 SMPS ...
Page 116: ...12 PCB Diagram 12 5 12 5 37 SMPS ...