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.
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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.
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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
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