[TechAssist] Re: Sharp microwave blows fuse

Thomas,



All the replies so far are correct only no one mentioned the safety
procedures needed when working on MW units.  Be very careful and discharge
the HV capacitor before attempting to service unit.  In addition, when you
get it working be sure to have a load in cavity (cup of water, etc.) and NOT
run without the shields in place. Finally verify door seal is clean and not
leaking (beyond established limits). Go to this website for good information
on this subject:



http://www.repairfaq.org/REPAIR/F_micfaq2.html



HTL



George

Afana Electronics

Moreno Valley, CA



----- Original Message -----
From: <tvservice@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, April 30, 2003 7:23 AM
Subject: [TechAssist] Re: Sharp microwave blows fuse


>
> Thomas
> How long have you been servicing MW ovens?
> Common failure symptom
> Most likely fault is magnetron, shorted HV cap, or shorted HV diode
> be sure to measure resistance on capacitor case to terminals for short
> Robert
> tvservice@xxxxxxxxxxxxx
> H & H Electronics Inc
>
> ----- Original Message -----
> From: "Thomas Woodward" <thomas.woodward@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, April 30, 2003 7:45 AM
> Subject: [TechAssist] Sharp microwave blows fuse
>
>
> >
> > Hi
> > I have a sharp micro/convection I am sorry I don't have the model # in
> > this e-mail I can get it if I need it
> > This unit came in with a blown fuse
> > I replaced it and all the keyboard functions work but when you go to
> > cook with it
> > it draws to much current and makes a  noise then pops the fuse
> > Is this the magnetron failing ?
> > I have never had one fail like this before usually they just stop
cooking
> > Thanks for looking
> > Tom
> >
> > --
> > Thomas S. Woodward
> > Sr. Multimedia Support Technician
> > Master tech 09165
> > Simmons College
> > 300 The Fenway
> > Boston Ma. 02115
> > 617-521-2764
> > 617-893-9226 (Cell)
> > mailto:woodwart@xxxxxxxxxxx
> >
> >
> >
> >
> >
> >
>
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