Panasonic LIFI PT-50LCZ7, Service Manual

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1 Safety Precautions 3
1.1. General Guidelines 3
1.2. Leakage Current Cold Check 3
1.3. Leakage Current Hot Check 3
1.4. Disposal Lamp 3
2 Warning 4
2.1. Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 4
3 Service Navigation 5
3.1. Introduction 5
3.2. About Lead Free Solder (PbF) 5
4 Specifications 6
5 Service Mode 7
6 Troubleshooting Guide 19
6.1. Troubleshooting Hints for Block Level Repair 19
7 Disassembly and Assembly Instructions 33
7.1. Cabinet Section 33
8 Measurements and Adjustments 55
8.1. Adjustment Procedures 1 55
9 Maintenance 58
9.1. Cleaning Methods 58
10 Voltage Chart and Waveform of Connectors 59
11 Block Diagrams 63
12 Schematic Diagrams 65
12.1. SCHEMATIC DIAGRAM & CIRCUIT BOARD LAYOUT
NOTES 65
12.2. INTERCONNECTION SCHEMATIC DIAGRAM 66
12.3. POWER SCHEMATIC DIAGRAMS 67
12.4. SD/HDMI SCHEMATIC DIAGRAM 68
12.5. REAR JACK SCHEMATIC DIAGRAM 69
12.6. FRONT JACK/OPERATION / POWER SWITCH / TUNER
SCHEMATIC DIAGRAM 74
13 Printed Circuit Board 75
13.1. POWER P.C.B. 75
13.2. SD/HDMI P.C.B. 76
13.3. REAR JACK P.C.B. 77
13.4. FRONT JACK/OPERATION P.C.B. / TUNER P.C.B. /
POWER SWITCH/OPERATION P.C.B. 78
14 Exploded Views 79
14.1. MAIN PARTS SECTION 79
14.2. BASE BODY SECTION 81
14.3. DISPLAY SECTION 82
14.4. SCREEN SECTION 84
14.5. OPT/TV UNIT SECTION 86
14.6. LAMP UNIT SECTION 87
14.7. PACKING PARTS AND ACCESSORIES SECTION 88
15 Replacement Parts List 89
15.1. REPLACEMENT NOTES 89
15.2. MECHANICAL REPLACEMENT PARTS LIST 90
15.3. ELECTRICAL REPLACEMENT PARTS LIST 91
CONTENTS
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7