DOS HOSPITALITY (serv.man43). Change to CCFT Back Light inverter PWB unit. - Sharp EPOS Technical Bulletin (repair manual)

dos hospitality (serv.man43) technical bulletin
Model
DOS HOSPITALITY (serv.man43)
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-sm43.pdf
Date

Read Sharp DOS HOSPITALITY (serv.man43) 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

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Here you can read online and download Sharp DOS HOSPITALITY (serv.man43) Technical Bulletin in PDF. DOS HOSPITALITY (serv.man43) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp DOS HOSPITALITY (serv.man43) EPOS. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.