Service Manuals, User Guides, Schematic Diagrams or docs for : TOSHIBA Beamer TDP MT700 toshiba_tdp_mt700_sm

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                       FILE NO. 330-200503




SERVICE MANUAL



    DLP PROJECTOR

    TDP-MT700




                 Document Created in Japan May.,2005
     MT700 Service Manual



MT-700

SERVICE MANUAL




                                                      CAUTION
                            BEFORE SERVICING THE PROJECTOR,
               READ THE SAFETY PRECAUTIONS IN THIS MANUAL.




  Contents

1. Safety Precautions ............................................................................................................. 2
2. Servicing Precautions ........................................................................................................ 3
3. Specification ...................................................................................................................... 4
4. Circuit Operation ............................................................................................................... 8
5. Alignment Procedure....................................................................................................... 23
6. Trouble Shooting Guide .................................................................................................. 34
Appendix A: Exploded View................................................................................................... 40
Appendix B: Spare Parts List .................................................................................................. 46




SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.




                                                                   1
 MT700 Service Manual



1. Safety Precautions


1. Be sure to read this manual before servicing and save it for future reference.
2. The lamp becomes extremely hot during operation. Allow the projector to cool for
   approximately 45 minutes prior to removing the lamp assembly for replacement.
   Do not operate lamps beyond the rated lamp life. Excessive operation of lamps
   beyond the rated life could cause them to explode on rare occasions.
3. Never replace the lamp assembly or any electronic components unless the
   projector is unplugged.
4. To reduce the risk of electric shock, do not disassemble this appliance. Take it to
   a qualified technician when service or repair is required. Incorrect re-assembly
   can cause electric shock when the appliance is subsequently used.
5. Do not place this product on an unstable cart, stand, or table. The product may
   fail, sustaining serious damage.




                                          2
 MT700 Service Manual



2. Servicing Precautions


1. When replace the lamp, be sure to avoid burns your fingers because the lamp
   becomes too hot.
2. Never touch the lamp bulb with a finger or anything else. Never drop it or give it a
   shock. They may cause bursting of the bulb.
3. This projector is provided with a high voltage circuit for the lamp. Do not touch the
   electric parts of power unit when turn on the projector.
4. Do not touch the exhaust fan during operation.




                                           3
 MT700 Service Manual



3. Specification

1.0 Optical Performance             Tested under 52" (diagonal) image size unless other specified.
                                         Measurement Details refer to Appendix A.
  1.1 Lamp                          OSRAM P-VIP 250 lamp --250W
  1.2 ANSI Brightness(Spoke on) Minimum                                     Typical
       [Base on BenQ RD Meter
                                800 Lumens                                  1000 Lumens
        CL-200]
  1.3 Brightness Uniformity     Minimum                                     Typical
                                65%                                         75%
  1.4 Contrast Ratio
     1.4.1 ANSI Contrast        Minimum                                     Typical
                                    250:1                                   300:1
     1.4.2 FOFO Contrast           Minimum                                 Typical
4X SLR ON Mode                     1400:1                                  1850:1
  1.5 Light Leakage
     1.5.1 Light Leakage in Active Dark level Gray 10 (linear gamma curve) not see any bright spot or
          Area                          line(except blemish(1.1.5))
                                   Full white pattern test; Criteria: not see special color spot
     1.5.2 Light Leakage out of Condition: the projection image diagonal60"
          Active Area              Test pattern : Full Black
                                   Criteria: <0.25Lux outside active area.
     1.5.3 Reflective Edge         Don't care
     1.5.4 Blue Edge               Condition: projector @ distance 3m and the projection image diagonal
                                        100"
                                   Test Pattern:(Factory /Pattern)
                                   Criteria: Color coordinate |x,y | 0.01 (difference between zone A
                                        and B)
                                                           6 cm
                                                                     10cm



                                                                                 B    A



    1.5.5 Blemish and dust          Reference to TI 720P Image Quality Value Specification Appendix
                                        D\table 1.
1.6 Color Coordinates
Based on BenQ RD PR650.


1.6.1 Color Temperature             Temp                                duv
                                    Min          Typical     Max        Min               Max
                                    6300         8800        11500      -0.005            +0.025
1.6.1.1 White                       x                                   y
                                    284 



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