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

From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Date: Fri, 8 Feb 2002 09:34:27 -0500
If your replying to my message you didn't read it all.  I'm against using
subs.
Phillip R Hull
phil245@xxxxxxxxxxxxx
----- Original Message -----
From: <HSWAD@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, February 07, 2002 4:21 PM
Subject: [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon cable


>
> My goodness guys, since when does making an honest suggestion the wrong
thing
> to do. Modifications are, and always have been against all electrical
rules.
> If you do it you take responsibility for it. Don't you want any input from
a
> 45 year engineer who helped to design microwaves and owned six factory
> service stations in that time and am still repairing????  Refusal to
listen
> is a sign of immaturity and don't you forget it.  Hollis Bates
>
>                                               In a message dated 2/7/02
> 2:58:03 PM Eastern Standard Time, phil245@xxxxxxxxxxxxx writes:
>
> << Subj:     [TechAssist] Re: GE microwave, GSU0421B- sliced keypad ribbon
> cable
>  Date:  2/7/02 2:58:03 PM Eastern Standard Time
>  From:  phil245@xxxxxxxxxxxxx (Phillip R. Hull)
>  Sender:    techassist-bounce@xxxxxxxxxxxxx
>  Reply-to:  techassist@xxxxxxxxxxxxx
>  To:    techassist@xxxxxxxxxxxxx
>
>
>  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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>  > >
>  > >
>  >
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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

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