[TechAssist] Re: Sansui Receiver 4900z Power switch
- From: Gary McCartney <gary@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 30 Jan 2003 14:43:08 -0500
Something I have done in the past when a power switch with multi-
contacts is not available, is to wire in a relay with the required
number of contacts, and use a simple SPST low voltage power switch to
control the relay.
I can see some grins with visions of law suits in your minds, for
manipulating the original circuit design - oh well, can't please
everyone :)
Gary McCartney
McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: gary (at) number63.ca
Peter oliver wrote:
>
> Another product to consider is the old standby WD-40. Have used it for over
> 20 years on switches, rotary tuners, pots, Cleaning out motor bearings and
> other bearing, etc.. It has the ability to help clean up the contacts while
> working them, has very little stray conductivity, and is safe on most
> plastics and leaves enough residual lubrication. It also works as a solvent
> to remove stickers, tape, and other hydrocarbon gue. Other products I've
> tried that have been contact cleaner were based on TCE or carbon TET and did
> a number on plastic.
>
> Peter Oliver
> Tucson Radio TV
> Tucson AZ USA
>
> From: "Lyles Tv" <tech@xxxxxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> To: <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] Re: Sansui Receiver 4900z Power switch
> Date: Thu, 30 Jan 2003 08:59:59 -0600
>
> Are you saying that this Deoxit is good for cleaning switches without having
> to open them and pray that you don't drop a bearing or something else?
> Jeff
> Lyles TV and Appliance
> Elkhorn, Wi. 53121
> tech@xxxxxxxxxxx
> ----- Original Message -----
> From: "ROD WILLIAMS" <roddmod@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, January 30, 2003 12:11 AM
> Subject: [TechAssist] Re: Sansui Receiver 4900z Power switch
>
> >
> > Deoxit by Caig Labs
> >
> > If you have not tried this for switches, connectors, I also use it on F
> > connectors. This stuff is amazing. I buy mine at MCM Electronics. 42
> years
> > in the service industry tried most products and nothing works like this
> > stuff.
> >
> >
> >
> > ROD WILLIAMS
> >
> > ENCORE ENGINEERING SERVICES
> >
> >
> >
> >
> >
> > >From: "David Lessard" <mrfixit@xxxxxxxxxxx>
> > >Reply-To: techassist@xxxxxxxxxxxxx
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Subject: [TechAssist] Re: Sansui Receiver 4900z Power switch
> > >Date: Wed, 29 Jan 2003 16:01:46 -0500
> > >
> > >
> > >Roger, I've had reasonable luck repairing most switches. Most common
> > >problem
> > >is oxidation (or carbon) on the contacts. Try taking the switch apart
> and
> > >scraping the oxidation, clean with alcohol and lubricate with NUTROL.
> Worse
> > >case scenario the contacts are degraded beyond repair and the customer
> ends
> > >up with a big ugly toggle switch.
> > >
> > >David Lessard
> > >Alexandria Electronics
> > >mrfixit@xxxxxxxxxxx
> > >
> > >-----Original Message-----
> > >From: techassist-bounce@xxxxxxxxxxxxx
> > >[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of rogerfixit@xxxxxxxx
> > >Sent: Wednesday, January 29, 2003 3:33 PM
> > >To: techassist@xxxxxxxxxxxxx
> > >Subject: [TechAssist] Sansui Receiver 4900z Power switch
> > >
> > >
> > >
> > >Going fishing-
> > >Sansui REceiver 4900z - need Power switch
> > >This switch is about 2" long with the power contacts in the back and
> six
> > >contacts (double pole/ double throw) in the front extending out the top
> > >and bottom and connected on the bottom thru resistors - no idea why or
> > >what for.
> > >If any one has a source or may have one - I do have a photo I can send.
> > >Otherwise, customer gets a brand new toggle switch installed somewhere.
> > >
> > >Roger G.
> > >
> > >Mr. Fix-It Harrisburg, PA 17110 WebSite-
> > >http://mrfixit.netfirms.com
> > >rogerfixit@xxxxxxxx (alternate - rogerfixit@xxxxxxxxxxxxx )
> > >FAX 801-705-3748 ; Tel: 717-763-7098 (shop) 717-652-1703(home)
> > >
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--
Gary McCartney
McCartney Electronics
7134 Fife Rd, RR 7
Guelph Ontario Canada N1H 6J4
Fax: (519)821-1530
email: gary (at) number63.ca
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