DOWNLOAD Sharp PN-U423 (serv.man2) Service Manual ↓ Size: 5.49 MB | Pages: 99 in PDF or view online for FREE

Model
PN-U423 (serv.man2)
Pages
99
Size
5.49 MB
Type
PDF
Document
Service Manual
Brand
Device
Monitor
File
pn-u423-sm2.pdf
Date
PREV: Sharp PN-U423 Handy Guide

Sharp PN-U423 (serv.man2) Service Manual ▷ View online

PN-U553/U473/U423 TROUBLESHOOTING 7 - 1 
 
CHAPTER 7.  TROUBLESHOOTING 
 
No Description 
1 
THE POWER IS NOT SUPPLIED (THE LED DOES NOT LIGHT UP)
 
2 
THE REMOTE CONTROL DOES NOT WORK
 
3 
THE DISPLAY DOES NOT WORK/ DISPLAY ABNORMALITY
 
4 
THE BACKLIGHT DOES NOT LIGHT UP
 
5 
SOUND IS NOT OUTPUTED/ OUTPUT SOUND ABNORMALITY
 
6 
DAISY CHAIN IS NOT MADE / DISPLAY ABNORMALITY
 
7 
CAN NOT CONTROL RS-232C CONNECTION 
8 
CAN NOT CONTROL LAN CONNECTION 
9 
THE LED LIGHTS UP IN ORDER OF RED 3 GREEN (TEMPERATURE ERROR)
 
 
1. THE POWER IS NOT SUPPLIED (THE LED DOES NOT LIGHT UP) 
 
2. THE REMOTE CONTROL DOES NOT WORK 
 
PN-U553/U473/U423 TROUBLESHOOTING 7 - 2 
 
3. THE DISPLAY DOES NOT WORK / DISPLAY ABNORMALITY 
 
4. THE BACKLIGHT DOES NOT LIGHT UP 
 
PN-U553/U473/U423 TROUBLESHOOTING 7 - 3 
 
5. SOUND IS NOT OUTPUTED/ OUTPUT SOUND ABNORMALITY 
 
6. DAISY CHAIN IS NOT MADE / DISPLAY ABNORMALITY 
 
7. CAN NOT CONTROL RS-232C CONNECTION 
 
PN-U553/U473/U423 TROUBLESHOOTING 7 - 4 
 
8. CAN NOT CONTROL LAN CONNECTION 
 
9. THE LED LIGHTS UP IN ORDER OF RED 3 GREEN (TEMPERATURE ERROR) 
 
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