Entry - Epson EMP-7300 Service Manual

4.2. Entry

Follow the flowchart shown below when starting troubleshooting EMP-7300 problems
and proceed to the pertinent detailed flowchart (given on the next and subsequent
pates).
Start
Outside view
Internal cable connectors
Power ON/OFF
Display/Picture quality
Audio out
Switch panel
Remote controller
Mouse/Com
interface control
Others
− Visual check for outside view.
(Check out the any damage on the cover area.)
− Ensure internal cable connections on the CD10MA board .
(Remove the upper case unit.)
− Ensure power on/off and initialization (No signal display).
(Connect power cable and turn on the power.)
− Ensure screen display and picture quality.
(Connect host computer, video device and RGB monitor.)
− Ensure audio output to the internal speaker and external speaker.
− Ensure button operations on the switch panel.
− Ensure button operations on the remote controller.
− Ensure ELP communication functions from remote controller.
(ELP communication kit II option is necessary.)
− Noise, Over heat, etc.
Figure4- 1
4-2
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