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0-7
EMP-S4
SEIKO EPSON
Revision:B
Testing procedure
Carry out testing in the order given below.
Testing methods
1). Insulation resistance test
•
Testing apparatus: Insulation ohmmeter (Rating: 500 V/100 M
Ω
)
•
Insulation ohmmeter settings
Check Item
Tool
Standard
Insulation resistance check
Insulation ohmmeter
Insulation resistance
should be 10 M
Ω
or
more.
Repair
End
Insulation resistance test
Ground continuity check
Safety inspections
Illumination check
a
b
Projector AC inlet
Computer IN connector
(1)
(2)
1. Set the range selection switch to 500 V.
2. Connect the black lead wire to the ground terminal.
3. Connect the red lead wire to the line terminal.
4. Connect the black lead wire (crocodile clip) to c in
order to measure the insulation resistance (1) (between
a and c) in the diagram below.
5. Next, insert the probe of the red lead wire into a.
6. Set the measure switch to LOCK, and then measure the
insulation resistance after 1 minute.
7. Check that the insulation resistance after 1 minute is
10 M
Ω
or more.
8. Next, measure the insulation resistance at (2) (between
b and c) in the diagram below in the same way as for
(1).
9. Check that the insulation resistance at (2) after 1 minute
is 10 M
Ω
or more.
Ground terminal
Line terminal
Display
Measure switch
Range selection
switch
Power supply lines
!
Caution
Because high voltage (500 V) is present,
do not touch the probe during testing.
Exposed metal part of projector
c
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 ...