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3-14
EMP-S4
SEIKO EPSON
Revision:B
3.2.9 Other
START
Is the projector making
abnormal noise
?
Is the projector overheating
?
Are there any image
problems
?
Is there any abnormal
odor or smoke
?
Check for any objects around the Exhaust Fan, Intake Fan and Power Supply Fan.
The cause might be a malfunction of the power supply unit (pulse transformer
vibration, etc.).
Malfunction of the
L
amp Thermistor or Safety Switch.
Malfunctioning or dirty Exhaust Fan, Intake Fan or Power Supply Fan. Clean
or replace as necessary.
Dirty air filter.
Malfunction of the Optical Engine.
Malfunction of Optical Engine
Malfunctioning or dirty
L
ight Guide Unit (lenses, mirrors, etc.).
Dirty Projection
L
ens.
Malfunctioning or dirty
L
ight Valve. Replace the Optical Engine and MA Board.
Charring of cables due to excessive heat. Replace any damaged cables and
resolve the overheating problem.
Dust burning due to heat. Make sure the air filter is not damaged, and check for
excessive heat.
Yes
N
o
Yes
N
o
Yes
N
o
Yes
Summary of Contents for EMP-S4
Page 1: ...Service Manual Data Projector EMP S4 ...
Page 13: ...Chapter 1 Product Specifications ...
Page 25: ...1 13 EMP S4 SEIKO EPSON Revision B 1 5 External Views Figure 1 8 External Dimensions Unit mm ...
Page 26: ...1 14 EMP S4 SEIKO EPSON Revision B Figure 1 9 External Dimensions Unit Inch ...
Page 27: ...Chapter 2 Theory of Operation ...
Page 49: ...Chapter 3 Troubleshooting ...
Page 63: ...Chapter 4 Disassembly Assembly ...
Page 97: ...Chapter 5 Appendix ...
Page 102: ...5 6 EMP S4 SEIKO EPSON Revision B ...