Service Manuals, User Guides, Schematic Diagrams or docs for : TOSHIBA LCD 42WP27B Toshiba_42WP27B_42WP27_42WP27E_42WP27F_42WP27R_[SM]

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Toshiba_42WP27B_42WP27_42WP27E_42WP27F_42WP27R_[SM]


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                 FILE NO. 050-200234




SERVICE MANUAL



PLASMA DISPLAY MONITOR
   42WP27B, 42WP27C
   42WP27E, 42WP27F
            42WP27R




                 PRINTED IN JAPAN Dec, 2002
CONTENTS
                                                               Page                                                                    Page
 1 Applicable signals                                                  3          13.14. H3, S1 and V1-Board                             56
 2 Safety Precautions                                                  4       14 Block and Schematic Diagrams                           57
     2.1. General Guidelines                                           4           14.1. Schematic Diagram Notes                         57
 3 Prevention of Electro Static Discharge (ESD) to                                 14.2. Main Block Diagram                              58
  Electrostatically Sensitive (ES) Devices                             5           14.3. F-Board Schematic Diagram                       59
 4 About lead free solder (PbF)                                        6           14.4. Power Block Diagram                             60
 5 PCB Structure sheet of GP5D chassis                                 7           14.5. P-Board (1 of 2) Schematic Diagram              61
 6 Service Hint                                                        8           14.6. P-Board (2 of 2) Schematic Diagram              62
 7 Location of Lead Wiring                                             9           14.7. HX-Board Block Diagram                          63
 8 Adjustment Procedure                                           10               14.8. HX-Board Schematic Diagram                      64
     8.1. +B Set-up                                               10               14.9. Option RTB421 Block Diagram                     65
     8.2. Driver Set-up                                           10              14.10. Option RTB421 (1 of 2) Schematic Diagram        66
     8.3. Initialization Pulse Adjust                             11              14.11. Option RTB421 (2 of 2) Schematic Diagram        67
     8.4. P.C.B. (Printed Circuit Board) exchange                 12              14.12. D1-Board Block Diagram                          68
     8.5. Adjustment Volume Location                              12              14.13. D1-Board (1 of 6) Schematic Diagram             69
     8.6. Test Point Location                                     12              14.14. D1-Board (2 of 6) Schematic Diagram             70
 9 Service mode                                                   13              14.15. D1-Board (3 of 6) Schematic Diagram             71
     9.1. CAT (computer Aided Test) mode                          13              14.16. D1-Board (4 of 6) Schematic Diagram             72
     9.2. IIC mode structure (following items value is sample data.)              14.17. D1-Board (5 of 6) Schematic Diagram             73
                                                                  15              14.18. D1-Board (6 of 6) Schematic Diagram             74
10 Alignment                                                      16              14.19. D2-Board Block Diagram                          75
    10.1. Pedestal setting                                        16              14.20. D2-Board (1 of 6) Schematic Diagram             76
    10.2. NTSC panel white balance                                17              14.21. D2-Board (2 of 6) Schematic Diagram             77
    10.3. PAL/SECAM panel white balance                           18              14.22. D2-Board (3 of 6) Schematic Diagram             78
    10.4. PC/RGB panel white balance                              20              14.23. D2-Board (4 of 6) Schematic Diagram             79
    10.5. HD/ 525i /525p panel white balance                      22              14.24. D2-Board (5 of 6) Schematic Diagram             80
    10.6. 625i panel balance                                      24              14.25. D2-Board (6 of 6) Schematic Diagram             81
    10.7. Sub brightness setting                                  25              14.26. C1 and C2-Board Block Diagram                   82
11 Trouble shooting guide                                         27              14.27. C1-Board Schematic Diagram                      83
    11.1. Self Check                                              27              14.28. C2-Board Schematic Diagram                      84
    11.2. No Power                                                28              14.29. SC-Board Block Diagram                          85
    11.3. No Picture                                              29              14.30. SC-Board (1 of 2) Schematic Diagram             86
    11.4. Local screen failure                                    29              14.31. SC-Board (2 of 2) Schematic Diagram             87
12 Option Setting                                                 30              14.32. SD-Board Block Diagram                          88
13 Conductor Views                                                33              14.33. SD-Board Schematic Diagram                      89
    13.1. F-Board                                                 33              14.34. SU-Board Block Diagram                          90
    13.2. P-Board                                                 34              14.35. SU-Board Schematic Diagram                      91
    13.3. HX-Board                                                37              14.36. SS-Board Block Diagram                          92
    13.4. Option RTB421                                           38              14.37. SS, SS2, SS3 and S1-Board Schematic Diagram     93
    13.5. D1-Board                                                40              14.38. Z-Board Block Diagram                           94
    13.6. D2-Board                                                42              14.39. H3 and Z-Board Schematic Diagram                95
    13.7. C1-Board                                                45           15 Mechanical Parts Location                              97
    13.8. C2-Board                                                46           16 Replacement Parts List                                 99
    13.9. SC-Board                                                47               16.1. Replacement Parts List Notes                    99
   13.10. SU-Board                                                50               16.2. Mechanical Replacement Parts List              100
   13.11. SD-Board                                                51               16.3. Electrical Replacement Parts List              101
   13.12. SS, SS2, SS3-Board                                      52           17 Specifications                                        111
   13.13. Z-Board                                                 55

                                                                           2
1 Applicable signals




                       3
2 Safety Precautions
2.1.      General Guidelines
 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
    damaged by the short circuit.
 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
    installed.
 3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

2.1.1.      Leakage Current Cold Check
 1. Unplug the AC cord and connect a jumper between the two
    prongs on the plug.
 2. Measure the resistance value, with an ohmmeter, between
    the jumpered AC plug and each exposed metallic cabinet
    part on the equipment such as screwheads, connectors,
    control shafts, etc. When the exposed metallic part has a
    return path to the chassis, the reading should be between
    1M9 and 5.2M9.
     When the exposed metal does not have a return path to
    the chassis, the reading must be     .




                            Figure 1

2.1.2.      Leakage Current Hot Check (See
            Figure 1.)
 1. Plug the AC cord directly into the AC outlet. Do not use an
    isolation transformer for this check.
 2. Connect a 1.5k9, 10 watts resistor, in parallel with a 0.15



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