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