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

From: Gary McCartney <number63@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx
Date: Fri, 08 Feb 2002 09:31:18 -0500
Ralph, I am 95% sure the ribbon cable is a permanent part of the keypad
and unavailable separately. I didn't rip the keypad away from the
plastic frame because I want to give up on this unit.


Please folks, no more questions about this ribbon cable. I am attempting
to sell the customer a used oven instead.


Gary McCartney

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




Ralph Dorsey wrote:
> 
> Maybe I missed a post or something, but why can't the ribbon cable be
> purchased and just changed? I sent another reply saying to just replace
> the cable with wires if you can't get the ribbon cable,,is there some
> reason that either of these won't work?
> 
> Gary McCartney wrote:
> 
> >How the heck is jumpering a slit in a ribbon cable a modification?
> >
> >Who in the world has ever had a microwave oven inspector come to their
> >door?
> >
> >Ok heres one: what if a capacitor with the diode built in is replaced
> >with a capacitor and external diode (everything rated the same)?
> >
> >What about the terrible connections some microwaves had with the one
> >connector at the magnetron filament? Those manufacturers never put out a
> >recall on them, and I had one in the shop that had almost caught fire
> >from that problem. That to me is one big safety problem compared to
> >jumpering a low voltage ribbon cable.
> >
> >
> >
> >Gary McCartney
> >
> >McCartney Electronics
> >7134 Fife Rd, RR 7
> >Guelph Ontario Canada N1H 6J4
> >Fax: (519)821-1530
> >email: number63@xxxxxxxxxxxxx
> >
> >
> >
> >
> >
> >HSWAD@xxxxxxx wrote:
> >
> >>
> >>                                                               What I was
> >>trying to tell you went over your head. Microwaves, as dangerous as they 
> >>are,
> >>are watched very carefully by certain agencies. If you modify,( and a sub
> >>transistor is not a modification )(unless you happen to be a Democrat) then
> >>you are accepting responsibility if something goes wrong. Modify if you will
> >>but my suggestion would be to notify the customer, have him sign the slip .
> >>Just trying to make a suggestion for your own protection. Hollis Bates
> >>                                   /02 1:32:30 PM Eastern Standard Time,
> >>number63@xxxxxxxxxxxxx writes:
> >>
> >><< Subj:     [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon
> >>cable
> >> Date:  2/7/02 1:32:30 PM Eastern Standard Time
> >> From:  number63@xxxxxxxxxxxxx (Gary McCartney)
> >> Sender:    techassist-bounce@xxxxxxxxxxxxx
> >> Reply-to:  techassist@xxxxxxxxxxxxx
> >> To:    techassist@xxxxxxxxxxxxx
> >>
> >>
> >> 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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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: Ralph Dorsey
[TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable

Other related posts:
