Epson EH-TW9000 Service Manual

EH-TW8000/TW9000/TW9000W Troubleshooting CONFIDENTIAL
SEIKO EPSON 42 Revision A
2.4.4 Troubleshooting without Error Indications
This section provides troubleshooting procedures based on observed faults.
TROUBLESHOOTING AT POWER-ON
TROUBLESHOOTING ON IMAGE DISPLAY & QUALITY
Error Status Faulty part / Part name Cause Remedy Reference
The projector does not operate at all.
(Power indicator does not light up blue.)
SW Board
Cable is not connected properly. Connect the cable correctly.
3.3.12.1 SW Board (p95)
SW Board is broken. Replace SW Board.
PS Unit
Cable is not connected properly.
Connect the cable to MA Board
correctly.
• 2.4.6 Cable Connection and
Projector’s Status (p51)
• "3.3.6 MA Board (assembly)
(p70)"
PS Unit is broken. Replace PS Unit.
"3.3.20 AC Cable (p111)"
Interlock Switch
(AC Cable)
The Interlock Switch cable or target parts are
broken.
Replace AC Cable.
MA Board MA Board is broken.
Replace MA Board (Optical Engine
and MAB Set).
3.3.6.3 Optical Engine and MAB
Set (p75)
Error Status Faulty part / Part name Cause Remedy Reference
No image is projected.
(Lamp lights)
Input video signal
The selected input video cable is not
connected correctly.
Connect the selected input video cable correctly.
---
MA Board Video Input terminal is broken. Replace MA Board (Optical Engine and MAB Set).
3.3.6.3 Optical Engine and
MAB Set (p75)
Focus cannot be adjusted.
Focus Ring Focus Ring is broken. Replace Focus Ring.
3.3.8.4 Focus Ring / Zoom
Ring (p83)
Projection Lens
(Optical Engine)
Projection Lens is broken. Replace Optical Engine.
3.3.8 Optical Engine
(assembly) (p78)
Zoom cannot be adjusted.
Zoom Ring Zoom Ring is broken. Replace Zoom Ring.
3.3.8.4 Focus Ring / Zoom
Ring (p83)
Projection Lens
(Optical Engine)
Projection Lens is broken. Replace Optical Engine.
3.3.8 Optical Engine
(assembly) (p78)

Epson EH-TW9000 Specifications

General

Brand	Epson
Model	EH-TW9000
Category	Projector
Language	English