[TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable

From: Gary McCartney <number63@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx
Date: Thu, 07 Feb 2002 15:31:57 -0500
That is one thing I do make sure of. After every microwave repair, I
check around the magnetron and the door cavity for leakage.


Gary McCartney

McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: number63@xxxxxxxxxxxxx




"Phillip R. Hull" wrote:
> 
> Techs.
> Its not illegal to replace with subs unless the parts are shaded in the
> service manual and parts list.
> 
> Since probably  only 50% of the posters have manuals they wouldn't even know
> this. No one would ever know unless it started a fire.
>   I have had no luck using subs for a permanent repair.  I have many sets
> come in here with SK and ECG subs and replacing with OEM's made a permanent
> repair.  I take personal pride to repair to factory specifications if
> possible.  Some of the things that were done in the list below would cost
> more in time and parts than tracking down the correct part.  I hope every
> one working with microwave ovens have the correct leakage meter as per
> federal regulations.     I will use subs when a part is no longer available,
> but I tell the customer it may not last.
> 
> Phillip R Hull
> phil245@xxxxxxxxxxxxx
> ----- Original Message -----
> From: "Ken Dinckan" <kdinckan@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, February 07, 2002 1:55 AM
> Subject: [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable
> 
> >
> > Hi Gary
> > I agree for all
> > and this was a very good response for this fellow
> >
> > Ken Dinckan
> > ALL Tv&Appliance Service
> > 2747 Roosevelt Street # B
> > Carlsbad CA, 92008
> > tel: (760)434-1131
> > fax: (760)434-8856
> > email to : kdinckan@xxxxxxx
> > ----- Original Message -----
> > From: "Gary McCartney" <number63@xxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Thursday, February 07, 2002 10:31 AM
> > Subject: [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon
> cable
> >
> >
> > >
> > > Well, I'll tell ya. For all the "illegal" things I've done to electronic
> > > equipment, I ought
> > > to be in jail for about 1000 years. In this business if you have to
> > > worry about every little
> > > alteration that is made, you not gonna get any sleep and you'll lose out
> > > on a number of jobs
> > > because of expense to buy original parts. If what you are saying is
> > > true, then I suggest that any time you replace a transistor with an ECG
> > > sub, you are also breaking the law for not installing the original part.
> > > The ECG might not have the same specs as the original and for heavens
> > > sakes could start a fire!!!!
> > >
> > > My theory is, that as long as you replace parts with same or better
> > > specs, even if you have to make alterations, you'll be doing you and
> > > your customer a favor. My customers are always very happy when I tell
> > > them that they have saved money or even saved there equipment from the
> > > scrap yard because of alterations I've made. Maybe where you are from
> > > there could be legal problems, but where I'm from, I've never heard of
> > > it.
> > > Tell me how a jumper on a microwave keypad ribbon cable is gonna cause a
> > > safety problem. You might be thinking something like, "well, if the
> > > connection comes loose and shorts out to another conductor causing the
> > > start button to be activated..." well, BS to that. My job would be neat
> > > and that wouldn't have a chance of happening.
> > >
> > >
> > >
> > > Some of the things I've done that you wouldn't approve of are:
> > >
> > >
> > > -using a 9V motor in a cassette deck instead of a 12V, and installing my
> > > own 7809 voltage regulator to bring the B+ down to 9v to run the motor
> > >
> > > -taking the top plate off a bad magnetron and installing it on a
> > > replacement magnetron because the mounting tabs of the plate onf the
> > > replacement were oriented the wrong way.
> > >
> > > -jumpering 40 traces on a cracked TV main board instead of buying a new
> > > board
> > >
> > > -in a power supply, using two 2200uF capacitors in parallel instead of
> > > one 3900uF.
> > >
> > > - when a multiple winding transformer opened in a stereo receiver power
> > > supply, I install three separate transformers in order to make up all
> > > the required voltage outputs
> > >
> > > - plastic button array no longer available on a TV set- solution,
> > > install my own bank of push button switches instead
> > >
> > > -replace picture tubes with numbers that don't anywhere match the
> > > original
> > >
> > > -replace yokes with windings that are different than the original
> > >
> > > - replace relays with ones that did not match, sometimes have to drill
> > > new holes in circuit board to make them fit.
> > >
> > >
> > >
> > >
> > > Is this enough, or are you having a heart attack by now?
> > >
> > >
> > > Next time, I might be writing you from jail.
> > >
> > >
> > >
> > > Gary McCartney
> > >
> > > McCartney Electronics
> > > 7134 Fife Rd, RR 7
> > > Guelph Ontario Canada N1H 6J4
> > > Fax: (519)821-1530
> > > email: number63@xxxxxxxxxxxxx
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > HSWAD@xxxxxxx wrote:
> > > >
> > > > All the things you are attempting to do are illegal. Purchase a proper
> > new
> > > > part or give it back to your customer.  If you jury rig and it fails
> you
> > are
> > > > liable. 45 years experience here. Hollis
> > > >
> > > >                  In a message dated 2/7/02 11:49:23 AM Eastern
> Standard
> > Time,
> > > > number63@xxxxxxxxxxxxx writes:
> > > >
> > > > << Subj:     [TechAssist] Re: GE microwave, GSU0421B- sliced keypad
> > ribbon
> > > > cable
> > > >  Date:  2/7/02 11:49:23 AM Eastern Standard Time
> > > >  From:  number63@xxxxxxxxxxxxx (Gary McCartney)
> > > >  Sender:    techassist-bounce@xxxxxxxxxxxxx
> > > >  Reply-to:  techassist@xxxxxxxxxxxxx
> > > >  To:    techassist@xxxxxxxxxxxxx
> > > >
> > > >
> > > >  Ya, I think I am pretty well screwed on this one. The conductors are
> > not
> > > >  copper. They are some type of painted -on substance. I also can't dig
> > > >  them out of the plastic. I've tried scraping and grinding and
> slicing,
> > > >  but can't reveal the conductor. I haven't ripped the keypad away from
> > > >  the plastic frame but I'm fairly sure that the ribbon cable and
> keypad
> > > >  are all one piece.
> > > >
> > > >  Thanks for the reply.
> > > >
> > > >
> > > >  If anyone has some microwave keypads laying around that you are
> willing
> > > >  to part with
> > > >
> > > >  , I have posted a picture at:
> > > >
> > > >  http://www.number63.ca/microwave.jpg
> > > >
> > > >
> > > >  I do not anticipate at this point that there is any problem with the
> > > >  control panel.
> > > >
> > > >
> > > >
> > > >  Gary McCartney
> > > >
> > > >  McCartney Electronics
> > > >  7134 Fife Rd, RR 7
> > > >  Guelph Ontario Canada N1H 6J4
> > > >  Fax: (519)821-1530
> > > >  email: number63@xxxxxxxxxxxxx
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >  J Silverman wrote:
> > > >  >
> > > >  > If you can expose enough of the traces and if they are copper you
> may
> > be
> > > >  > able to solder a jumper wire across the break. I have done this on
> > > > camcorder
> > > >  > ribbon cables where there was lots of $ at stake. Sometimes the
> > copper is
> > > > so
> > > >  > thin and narrow it just falls apart in the soldering. I dont
> believe
> > that a
> > > >  > paint will work as there is no way to support the ribbon cable.
> > Sometimes I
> > > >  > just remove the ribbon cable and replace the whole thing with
> wires.
> > If the
> > > >  > buttons and ribbon cable are one piece that wont work for you.
> > > >  > Jerry Silverman
> > > >  > Greentron Inc
> > > >  > 4 Newland Ave
> > > >  > Greenville SC 29609
> > > >  > 864 232 3889
> > > >  > Fax 271 2080
> > > >  > mailto:greentron@xxxxxxx
> > > >  > ----- Original Message -----
> > > >  > From: "Gary McCartney" <number63@xxxxxxxxxxxxx>
> > > >  > To: <techassist@xxxxxxxxxxxxx>
> > > >  > Sent: Wednesday, February 06, 2002 9:14 PM
> > > >  > Subject: [TechAssist] Re: GE microwave, GSU0421B- sliced keypad
> > ribbon
> > > > cable
> > > >  >
> > > >  > >
> > > >  > > Ken, many of the US 1-800 numbers will work from here. There are
> > some,
> > > >  > > however that don't.
> > > >  > > I have heard that there is an intermediate number that can be
> > called and
> > > >  > > the charge is from the caller to the US border only. Not sure if
> it
> > > >  > > works or not.
> > > >  > >
> > > >  > > This microwave is just a small one so the customer is not likely
> > gonna
> > > >  > > want it fixed if I have to order a keypad, so either I have to
> > bridge
> > > >  > > the trace in the flexible cable or forget it. I am experimenting
> 
> > with
> > > >  > > grinding the plastic with my dremel. May or may not work. Then if
> I
> > get
> > > >  > > the trace bare, I'll get some of that rear window defogger repair
> > > >  > > compound. I haven't had any luck with the rubber keypad repair
> kits
> > for
> > > >  > > remotes.
> > > >  > >
> > > >  > > Ya, the customer must have got his tools against the flex cable
> and
> > > >  > > split it open because he sure did a winning job at re-installing
> > the
> > > >  > > interlock switch. Looked like something Red Green would
> > attempt....duct
> > > >  > > tape.
> > > >  > >
> > > >  > >
> > > >  > >
> > > >  > > Gary McCartney
> > > >  > >
> > > >  > > McCartney Electronics
> > > >  > > 7134 Fife Rd, RR 7
> > > >  > > Guelph Ontario Canada N1H 6J4
> > > >  > > Fax: (519)821-1530
> > > >  > > email: number63@xxxxxxxxxxxxx
> > > >  > >
> > > >  > >
> > > >  > >
> > > >  > >
> > > >  > > gulftech@xxxxxxxx wrote:
> > > >  > > >
> > > >  > > > Gary,
> > > >  > > >
> > > >  > > > Have never had any luck trying to fix a keypad.  What a dork
> your
> > > >  > > > customer is!!!  The keypad peels off of the front panel.  Clean
> > the
> > > >  > > > residue well before applying the new one, or it will not be
> > smooth.
> > > > Try
> > > >  > > > Global--see below.
> > > >  > > >
> > > >  > > > Ken,
> > > >  > > >
> > > >  > > > I have worked on microwaves for 10 years.  That's the first
> time
> > I ever
> > > >  > > > heard a magnetron referred to as a tube.  Call Global
> > Micro-Parts,
> > > >  > > > 1-800-325-8488.  Please start a new post with a new topic.
> BTW,
> > you'll
> > > >  > > > need a number of the magnetron.
> > > >  > > >
> > > >  > > > Gary--  Please don't laugh.  This is a serious question.  Do
> U.S.
> > 800
> > > >  > > > numbers work in Canada?
> > > >  > > >
> > > >  > > > Ken Smith
> > > >  > > > Gulf Technical Services
> > > >  > > > 3034 Gulf Breeze Parkway
> > > >  > > > Gulf Breeze, FL  32563
> > > >  > > > 850-934-8324 (Voice) 850-932-0819 (Fax)
> > > >  > > >
> > > >  > > > On Wed, 6 Feb 2002 03:48:39 -0800 "Ken Dinckan"
> > <kdinckan@xxxxxxx>
> > > >  > > > writes:
> > > >  > > > >
> > > >  > > > > Hi Gary
> > > >  > > > > you can probably try that conductive material they use for
> the
> > worn
> > > >  > > > > remote
> > > >  > > > > control buttons.. I never tried but it might work just to
> give
> > you
> > > >  > > > > idea..
> > > >  > > > > See if it is helps
> > > >  > > > > I just had one Emerson Microwave and Tube is gone and called
> > Fox
> > > >  > > > > they want $97.80 plus shipping. This Emerson has bad
> repitation
> > for
> > > >  > > > > me. So
> > > >  > > > > do you have any used tubes laying around??
> > > >  > > > >
> > > >  > > > > Ken Dinckan
> > > >  > > > > ALL Tv&Appliance Service
> > > >  > > > > 2747 Roosevelt Street # B
> > > >  > > > > Carlsbad CA, 92008
> > > >  > > > > tel: (760)434-1131
> > > >  > > > > fax: (760)434-8856
> > > >  > > > > email to : kdinckan@xxxxxxx
> > > >  > > > > ----- Original Message -----
> > > >  > > > > From: "Gary McCartney" <number63@xxxxxxxxxxxxx>
> > > >  > > > > To: <techassist@xxxxxxxxxxxxx>
> > > >  > > > > Sent: Wednesday, February 06, 2002 3:33 PM
> > > >  > > > > Subject: [TechAssist] GE microwave, GSU0421B- sliced keypad
> > ribbon
> > > >  > > > > cable
> > > >  > > > >
> > > >  > > > >
> > > >  > > > > >
> > > >  > > > > > I have this microwave oven which the customer attempted to
> > repair
> > > >  > > > > > himself. He had duct tape wound around the primary
> interlock
> > > >  > > > > switch and
> > > >  > > > > > the switch was busted. After I replaced the switch and
> > checked all
> > > >  > > > > the
> > > >  > > > > > interlock switches, I plugged the oven in and wasn't able
> to
> > > >  > > > > control the
> > > >  > > > > > keypad except for the defrost and clear buttons. Then I
> > noticed
> > > >  > > > > that 3
> > > >  > > > > > traces in the flexable ribbon cable from the keypad to the
> > control
> > > >  > > > > panel
> > > >  > > > > > were sliced. Does anyone have a way of repairing this,
> other
> > than
> > > >  > > > > > ordering a new keypad? The traces are sandwiched in plastic
> > and
> > > >  > > > > they are
> > > >  > > > > > made of that nasty un-solderable conductive material. I
> tried
> > to
> > > >  > > > > scrape
> > > >  > > > > > the plastic down to the traces but was not successful. Can
> > the
> > > >  > > > > keypad be
> > > >  > > > > > removed from the plastic front panel which it seems to be
> > > >  > > > > permanently
> > > >  > > > > > part of?
> > > >  > > > > >
> > > >  > > > > > Thanks for any help.
> > > >  > > > > > --
> > > >  > > > > >
> > > >  > > > > >
> > > >  > > > > >
> > > >  > > > > > Gary McCartney
> > > >  > > > > >
> > > >  > > > > > McCartney Electronics
> > > >  > > > > > 7134 Fife Rd, RR 7
> > > >  > > > > > Guelph Ontario Canada N1H 6J4
> > > >  > > > > > Fax: (519)821-1530
> > > >  > > > > > email: number63@xxxxxxxxxxxxx
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> > > --
> > >
> > >
> > >
> > > Gary McCartney
> > >
> > > McCartney Electronics
> > > 7134 Fife Rd, RR 7
> > > Guelph Ontario Canada N1H 6J4
> > > Fax: (519)821-1530
> > > email: number63@xxxxxxxxxxxxx
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-- 



Gary McCartney

McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: number63@xxxxxxxxxxxxx
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References:
- [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable
  - From: HSWAD
- [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable
  - From: Gary McCartney
- [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable
  - From: Ken Dinckan
- [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable
  - From: Phillip R. Hull
[TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable

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