PG-M15 (serv.man4). Service Manual Part 3 - Troubleshooting (30-37) - Sharp Projector Service Manual (repair manual). Page 5

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34
PG-M15X
PG-M15S
AN-M15T
2-3. C. Function Troubleshooting
Yes
No
Does OSD
show up?
No
Yes
Is SW PWB unit 
OK?
Yes
No
Can function
be adjusted?
End
No
Yes
Is Remote 
Controller OK?
Change
SW PWB unit
No
Change
battery
Change
Remote Controller
Start
Yes
No
Can hear
sound?
No
Yes
No
Sound is clear
without noise?
End
Change
Spearker
Start
Main PWB unit
Troubleshooting
Main PWB unit
Troubleshooting
Main PWB unit
Troubleshooting
Main PWB unit
Troubleshooting
2-4. D. Audio Troubleshooting
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