Service manual

3-11
EMP-S3
SEIKO EPSON Revision:B
3.2.6 Control Panel
START
Does pressing the [Power] button turn
the power on and off?
No
Yes
Does pressing the [Menu] button display
the menu?
No
Yes
Does pressing the [Source] button switch
the input source?
No
Yes
Does pressing the [Help] button show the
explanation display?
No
Yes
Does pressing the [Enter] button change
the menu item?
No
Yes
Does pressing the [ ] or [] buttons
correct keystone distortion?
No
Yes
Does pressing the [TELE] or [WIDE] but-
tons change the image size?
No
Yes
Reconnect CN903 on the
MA board
Yes
Do all switches function
normally?
No
Replace the control panel.
Yes
Do all switches function
normally?
No
Replace the Optical Engine
and MA Board
Remote Control Operation