R-7N76M (serv.man11). Oven does not reach correct pre-heat temperature — Sharp Home Appliance Technical Bulletin (repair manual)

Model
R-7N76M (serv.man11)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
15.36 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Home Appliance / Microwave Oven / Oven does not reach correct pre-heat temperature
File
r-7n76m-sm11.pdf
Date

View Sharp R-7N76M (serv.man11) Technical Bulletin online

Sharp Electronics (UK) Limited    CE Technical Support Group
Originator  
$Y:
    Supervisor   
   
     Approval Date       /    /        Reference   TB-M9701028 
White - Carry out as required      Yellow - Carry out as required and whenever unit comes in for service      Red - Carry out on all units
MWO970301
Month of Issue :
March 1997
Classification : 
White
MICROWAVE TECHNICAL BULLETIN
Page 1 of 1
MODELS
  R7N78M
  
SYMPTOM When the oven is used on the convection function, it does not reach the correct 
pre-heat temperature.  
Note that if the unit under test is within the specified limit at 250  C of +/-15  C 
o
   
 
o
then no action is required.
CAUSE
Changes in component tolerances in the oven temperature sensing circuit.
ACTION
Change the value of R62 on the Control Panel to 1k8 ( was 2k7 ).
Use the part number given below.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
R62
Resistor 1k8, 0.25W
VRN-B12EK182F
AA
Sharp Electronics (UK) Limited    CE Technical Support Group
Originator  
$Y:
    Supervisor   
   
     Approval Date       /    /        Reference   TB-M9701028 
White - Carry out as required      Yellow - Carry out as required and whenever unit comes in for service      Red - Carry out on all units
MWO970301
Month of Issue :
March 1997
Classification : 
White
MICROWAVE TECHNICAL BULLETIN
Page 1 of 1
MODELS
  R7N78M
  
SYMPTOM When the oven is used on the convection function, it does not reach the correct 
pre-heat temperature.  
Note that if the unit under test is within the specified limit at 250  C of +/-15  C 
o
   
 
o
then no action is required.
CAUSE
Changes in component tolerances in the oven temperature sensing circuit.
ACTION
Change the value of R62 on the Control Panel to 1k8 ( was 2k7 ).
Use the part number given below.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
R62
Resistor 1k8, 0.25W
VRN-B12EK182F
AA
Sharp Electronics (UK) Limited    CE Technical Support Group
Originator  
$Y:
    Supervisor   
   
     Approval Date       /    /        Reference   TB-M9701028 
White - Carry out as required      Yellow - Carry out as required and whenever unit comes in for service      Red - Carry out on all units
MWO970301
Month of Issue :
March 1997
Classification : 
White
MICROWAVE TECHNICAL BULLETIN
Page 1 of 1
MODELS
  R7N78M
  
SYMPTOM When the oven is used on the convection function, it does not reach the correct 
pre-heat temperature.  
Note that if the unit under test is within the specified limit at 250  C of +/-15  C 
o
   
 
o
then no action is required.
CAUSE
Changes in component tolerances in the oven temperature sensing circuit.
ACTION
Change the value of R62 on the Control Panel to 1k8 ( was 2k7 ).
Use the part number given below.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
R62
Resistor 1k8, 0.25W
VRN-B12EK182F
AA
Sharp Electronics (UK) Limited    CE Technical Support Group
Originator  
$Y:
    Supervisor   
   
     Approval Date       /    /        Reference   TB-M9701028 
White - Carry out as required      Yellow - Carry out as required and whenever unit comes in for service      Red - Carry out on all units
MWO970301
Month of Issue :
March 1997
Classification : 
White
MICROWAVE TECHNICAL BULLETIN
Page 1 of 1
MODELS
  R7N78M
  
SYMPTOM When the oven is used on the convection function, it does not reach the correct 
pre-heat temperature.  
Note that if the unit under test is within the specified limit at 250  C of +/-15  C 
o
   
 
o
then no action is required.
CAUSE
Changes in component tolerances in the oven temperature sensing circuit.
ACTION
Change the value of R62 on the Control Panel to 1k8 ( was 2k7 ).
Use the part number given below.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
R62
Resistor 1k8, 0.25W
VRN-B12EK182F
AA
Sharp Electronics (UK) Limited    CE Technical Support Group
Originator  
$Y:
    Supervisor   
   
     Approval Date       /    /        Reference   TB-M9701028 
White - Carry out as required      Yellow - Carry out as required and whenever unit comes in for service      Red - Carry out on all units
MWO970301
Month of Issue :
March 1997
Classification : 
White
MICROWAVE TECHNICAL BULLETIN
Page 1 of 1
MODELS
  R7N78M
  
SYMPTOM When the oven is used on the convection function, it does not reach the correct 
pre-heat temperature.  
Note that if the unit under test is within the specified limit at 250  C of +/-15  C 
o
   
 
o
then no action is required.
CAUSE
Changes in component tolerances in the oven temperature sensing circuit.
ACTION
Change the value of R62 on the Control Panel to 1k8 ( was 2k7 ).
Use the part number given below.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
R62
Resistor 1k8, 0.25W
VRN-B12EK182F
AA

Download Sharp R-7N76M (serv.man11) Technical Bulletin

Here you can view online or download Sharp R-7N76M (serv.man11) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp R-7N76M (serv.man11) Microwave Oven. Information contained in Sharp R-7N76M (serv.man11) 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).