EH-TW8000/TW9000/TW9000W Troubleshooting CONFIDENTIAL
SEIKO EPSON 54 Revision A
2.5 Operation and Safety Check after repair
INITIALIZATION CHECK
After repairing this product, carry out the following initialization check. When
repairing a Safety Device, refer to “ 3.4 Safety Check after Servicing (p113)” and carry
out the necessary procedure for safety.
2.5.1 Each Operation Check
When repairing this product, carry out the check for each operation if necessary.
OPERATION CHECK FOR CONTROL PANEL (SW BOARD) / LENS
SHIFT
After repairing Control Panel and Lens Shift, carry out the check below following the
instructions. (See" Troubleshooting on Operation Abnormality (p46)")
Procedure Check item
1. Connect the power cable. Does the [Power] LED light blue?
2. Press the [Power] button on the
projector.
Does the [Power] LED flash blue, then light blue?
Does the lamp light?
Procedure Check item
1. Press [Power] button on the projector
to turn it on.
2. Check all the buttons on
Control
Panel if they work properly.
3. Check the operation of Lens Shift.
Does the [Power] button switch on/off the projector?
Does the [ ] button switch the sources?
Does the [Menu] button display/close the menu?
Does the [Keystone] button correct keystone?
Does the [Esc] button stop the current function?
Does the [Enter] button select/change the function
and setting value?
Can the projecting position be adjusted with the Lens
Shift?
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