Service manual

3-18
CONFIDENTIAL
EMP-1825/EMP-1815/EMP-1810
SEIKO EPSON Revision:C
3.3.8 Lens Shutter’s Operation Check
Flowchart 3-10 Lens Shutter’s Check
Start
1. Replace the corresponding cable.
2. Replace Photo Interrupter.
Does AV Mute function start/stop,
when closing/opening the shutter?
3. Replace Optical Engine and MAB set.
NG
NG
NG
If theAV Mute does not work correctly, apply the
remedy from the top (1). If it doesnot work, go on
to the next remedy.
For more information, refer to 4.3.4.2. "Removing the Lens Shutter B/Lens Shutter A/Photo Inter-
rupter" (p. 18) / 4.4.1 "Removing the Optical Engine and MAB (1) (MA Board Assy.)" (p. 20) / 4.4.3
"Removing the Optical Engine and MAB (2) (Optical Engine)" (p. 42)