DOS HOSPITALITY (serv.man47). Change to CCFT Back Light inverter PWB unit. — Sharp EPOS Technical Bulletin (repair manual)

Model
DOS HOSPITALITY (serv.man47)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
60.58 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
EPOS / Change to CCFT Back Light inverter PWB unit.
File
dos-hospitality-sm47.pdf
Date

View Sharp DOS HOSPITALITY (serv.man47) Technical Bulletin online

Technical Report
1.  Model Name
UP-5700 (U,A and V versions)
2.  General
Some UP-5700 CCFT Back light inverter unit produce output
current exceeding specified value when operated at high
temperature.
If you keep on using the unit with such high output current, the life
span of the CCFT Back Light may become shortened. This
symptom specifically tends to happen in the units used at shops
opening 24 hours a day.
3. Action
[For 
field]
When you receive a unit with the brightness of the CCFT Back
Light decreased, please replace the CCFT Back Light and change
the resistor R104 on the inverter PWB unit from 11K Ohm 1% to
13K Ohm 1%.
Taking other repair opportunities or normal service opportunities
for the UP-5700's please change the resistor R104.
[For production]
The preventive measure has been implemented since November
1998 production.
4. Parts 
Action
Change in CCFT Back light inverter PWB unit
BACK LIGHT FAILURE
Display

Download Sharp DOS HOSPITALITY (serv.man47) Technical Bulletin

Here you can view online or download Sharp DOS HOSPITALITY (serv.man47) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp DOS HOSPITALITY (serv.man47) EPOS. Information contained in Sharp DOS HOSPITALITY (serv.man47) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).