EH-TW3500/4500/5500
Troubleshooting
CONFIDENTIAL
SEIKO EPSON
35
Revision A
TROUBLE SHOOTING ON IMAGE DISPLAY & QUALITY
Error Status
Faulty part/part name
Cause
Remedy
Reference
No image is projected.
Input video cable
The selected input video cable is not
connected correctly.
Connect the selected input video cable correctly.
---
MA Board
Video Input terminal is broken.
Replace the Optical Engine and MAB set.
•
"3.3.8 Removing the MA Board
(assembly) (p68)"
•
"3.3.9 Removing the Optical
Engine (assembly) (p75)"
Focus cannot be adjusted.
Focus Ring
Focus Ring is broken.
Replace the Focus Ring.
"3.3.9.1 Focus Ring/Zoom Ring
(p78)"
Optical Engine
Projection Lens is broken.
Replace the Optical Engine and MAB set.
"3.3.9 Removing the Optical
Engine (assembly) (p75)"
Zooming cannot be made.
Zoom Ring
Zoom Ring is broken.
Replace the Zoom Ring.
"3.3.9.1 Focus Ring/Zoom Ring
(p78)"
Optical Engine
Projection Lens
Zoom Ring
Focus Ring
MA Board
Optical Engine
Summary of Contents for DREAMIO EH-TW2900
Page 1: ...EH TW2900 3500 4400 4500 5500 Multimedia Projector SERVICE MANUAL CONFIDENTIAL ...
Page 9: ...CONFIDENTIAL C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 16: ...CONFIDENTIAL C H A P T E R 2 TROUBLESHOOTING ...
Page 46: ...CONFIDENTIAL C H A P T E R 3 DISASSEMBLYANDASSEMBLY ...