R-8740 (serv.man25). Noise from the high voltage circuit area during start up - Sharp Home Appliance Technical Bulletin (repair manual)

r-8740 (serv.man25) technical bulletin
Model
R-8740 (serv.man25)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
11.86 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Home Appliance / Microwave Oven / Noise from the high voltage circuit area during start up
File
r-8740-sm25.pdf
Date
Next: Sharp R-875M Parts Guide

Read Sharp R-8740 (serv.man25) Technical Bulletin online

MWO2001 11 02
Month of Issue:   November 2001
        
Classification: 
White
MICROWAVE TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference
Revision   
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
 Red – Carry out on all units
MODELS
R8740M
SYMPTOM Noise from the high voltage circuit area during start up.
CAUSE
Component tolerance variance on the control PWB
ACTION
Change the relay timing in the software as follows:
1.  Turn the mains on and ensure that the door is shut.
2.  Press 'time reduce' once, followed by 'convection' once, followed by 'microwave'
twice - all within a two second period.
3.  The code of 5264 should appear in the display.
4.  Overwrite this by entering 5277.
5.  Press 'memory' key.
6.  Confirm that the checksum shown is '11'.
7.  Turn off the power to.
Display

Download Sharp R-8740 (serv.man25) Technical Bulletin

Here you can read online and download Sharp R-8740 (serv.man25) Technical Bulletin in PDF. R-8740 (serv.man25) technical bulletin will guide through the process and help you recover, restore, fix, disassemble and repair Sharp R-8740 (serv.man25) Microwave Oven. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.

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R-8740 (serv.man25) Service Manuals

Preview DownloadPagesSize
R-8740 (serv.man2) Contents Service Manual 1 471.57 KB
R-8740 (serv.man17) Complete Service Manual 48 1.46 MB
R-8740 (serv.man16) Printed wiring board diagram Service Manual 1 558.12 KB
R-8740 (serv.man15) Control panel circuit diagram Service Manual 1 461.21 KB
R-8740 (serv.man14) Pictorial diagram Service Manual 1 438.93 KB
R-8740 (serv.man13) Schematic diagrams Service Manual 4 662.34 KB
R-8740 (serv.man12) Test data and Wiring rewiring Service Manual 1 438.23 KB
R-8740 (serv.man11) Microwave measurement Service Manual 1 432.05 KB
R-8740 (serv.man10) Component replacement and adjustment procedure Service Manual 5 488.66 KB
R-8740 (serv.man9) Control panel assembly Service Manual 7 465.95 KB
R-8740 (serv.man8) Test procedure Service Manual 7 468.86 KB
R-8740 (serv.man7) Troubleshooting guide Service Manual 2 450.45 KB
R-8740 (serv.man6) Function of important components Service Manual 3 462.12 KB
R-8740 (serv.man5) Operation sequence Service Manual 2 450.43 KB
R-8740 (serv.man4) Appearance view Service Manual 1 508.98 KB
R-8740 (serv.man3) Notes and cautions about servicing Service Manual 3 433.51 KB
R-8740 (serv.man20) User Guide / Operation Manual 40 941.24 KB
R-8740 (serv.man18) Parts list Parts Guide 3 467.96 KB
R-8740 (serv.man19) Exploded views and packing of set Parts Guide 4 620.09 KB
R-8740 Product Specification 1 426.99 KB
R-8740 (serv.man21) Parts change (High Voltage Transformer) Technical Bulletin 1 4.84 KB
R-8740 (serv.man22) Part change Turntable Motor Shaft Assembly Technical Bulletin 1 32.8 KB
R-8740 (serv.man23) Programming replacement control panels Technical Bulletin 1 217.05 KB
R-8740 (serv.man24) Alternative monitor switch Technical Bulletin 1 39.66 KB

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