3-2
EMP-822/EMP-83/EMP-X5/EMP-S5
SEIKO EPSON Revision:A
3.1 Before Carrying Out Troubleshooting
• If repairs involving the replacement of parts or components have been carried out, always
be sure to re-check whether the replacement parts themselves are operating correctly or not
in order to determine whether the problem is the result of something such as a loose connec-
tor.
• All instructions and procedures listed in troubleshooting flowcharts should be carried out as
given.
• Follow the procedures given in Chapter 4 Disassembly and Assembly when replacing any
of the projector components.
• When checking the operation of the projector, always check that the connectors are con-
nected securely before proceeding to other checks.
• In order to confirm proper operation, use AC power from a normal source and use the cor-
rect cable type.
3.1.1 Troubleshooting Tools and Equipment
• The following tools and equipment will be required in order to carry out troubleshooting,
and so you should check that they are on hand.
Table 3-1.
Name Quantity Application/Other
Projection screen
1
Projecting images
Host computer
1
Transmitting audio and image data
USB mouse
1
Checking the operation of the mouse
Video equipment
1
Transmitting audio and image data
Multi meter
1
Measuring resistance values and voltages (AC/DC)
Double-sided tape
Short
length
Attaching parts
General tools
1 set
Tools and equipment listed in Section 4.1
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