Panasonic PT-52LCX66-K, Service Manual, Page: 2 / 223

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. UV-Precaution 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 Location of Controls and Components 7
5.1. Operation Instructions 7
5.2. Replacement of Lamp 10
6 Service Mode 11
7 Troubleshooting Guide 24
7.1. Troubleshooting Hints for Component Level Repair 24
8 Service Fixture & Tools 44
8.1. Service Fixture and Tools 44
8.2. Service Position 46
8.3. Replacement Procedures for CSP (Chip Size Package) IC
54
9 Disassembly and Assembly Instructions 58
9.1. Cabinet Section 58
9.2. Projection Section 73
10 Measurements and Adjustments 85
10.1. Adjustment Procedures 1 85
10.2. Adjustment Procedures 2 88
11 Maintenance 105
11.1. Cleaning Methods 105
12 Block Diagrams 107
13 Schematic Diagrams 117
13.1. SCHEMATIC DIAGRAM & CIRCUIT BOARD LAYOUT
NOTES 117
13.2. INTERCONNECTION SCHEMATIC DIAGRAM 118
13.3. MAIN SCHEMATIC DIAGRAMS 119
13.4. BASE SCHEMATIC DIAGRAMS 132
13.5. POWER SCHEMATIC DIAGRAMS 137
13.6. LCD DRIVE SCHEMATIC DIAGRAM 141
13.7. SD CARD SCHEMATIC DIAGRAM 150
13.8. IRIS SCHEMATIC DIAGRAM 151
13.9. HALL-S SCHEMATIC DIAGRAM 152
13.10. FRONT JACK / OPERATION SCHEMATIC DIAGRAM 153
13.11. POWER SWITCH / THERMISTOR 2 / COVER SWITCH
SCHEMATIC DIAGRAMS 154
13.12. VOLTAGE CHART 155
14 Printed Circuit Board 161
14.1. MAIN P.C.B. 161
14.2. BASE P.C.B. 163
14.3. POWER P.C.B. 167
14.4. LCD DRIVE P.C.B. 169
14.5. SD CARD P.C.B. / IRIS P.C.B. / HALL-S P.C.B. 171
14.6. FRONT JACK / OPERATION P.C.B. / POWER SWITCH
P.C.B. / THERMISTOR 2 P.C.B. / COVER SWITCH
P.C.B. 172
15 Appendix Information of Schematic Diagram 173
15.1. CHECKING POINT TABLE OF THE CSP IC 173
15.2. WAVEFORM TABLE 175
16 Exploded Views (Cabinet Section) 179
16.1. MAIN PARTS SECTION 179
16.2. BASE BODY SECTION 181
16.3. DISPLAY SECTION 182
16.4. SCREEN SECTION 184
16.5. PROJECTION SECTION 186
16.6. TV UNIT SECTION (1) 187
16.7. TV UNIT SECTION (2) 188
16.8. PACKING PARTS AND ACCESSORIES SECTION 189
17 Replacement Parts List (Cabinet Section) 190
17.1. REPLACEMENT NOTES 190
17.2. MECHANICAL REPLACEMENT PARTS LIST 191
17.3. OPTIONAL ACCESSORY REPLACEMENT PARTS LIST
192
17.4. SERVICE FIXTURES AND TOOLS REPLACEMENT
PARTS LIST 192
17.5. ELECTRICAL REPLACEMENT PARTS LIST 193
18 Exploaded Views (Projection Section) 207
18.1. PROJECTION SECTION 207
18.2. OPTICAL UNIT SECTION 208
18.3. OPTICAL IRIS UNIT SECTION 209
18.4. POWER UNIT SECTION 210
18.5. PACKING PARTS SECTION 211
19 Replacement Parts List (Projection Section) 212
19.1. REPLACEMENT NOTES 212
19.2. MECHANICAL REPLACEMENT PARTS LIST 213
19.3. OPTIONAL ACCESSORY REPLACEMENT PARTS LIST
214
19.4. ELECTRICAL REPLACEMENT PARTS LIST 214
CONTENTS
Page Page
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PT-52LCX66-K / PT-56LCX16-K / PT-61LCX66-K