On Sun, 9 Mar 2008 02:36:40 -0800, "Michael A. Terrell" wrote:
: :"Ross Herbert" wrote in message :news: snipped-for-privacy@4ax.com... :> On Sat, 8 Mar 2008 21:07:57 -0800 (PST), snipped-for-privacy@hotmail.com wrote: :>
:> :I am searching for someone that can direct me in replacing a power :> :transformer on a circuit board. A friend of mine asked me to get her :> :electric hospital bed working again. She recently had to be cut out of :> :a pick-up after a head-on collision and still needs an electric bed. :> : :> :This is what I have so far: :> : :> :The bed doesn't have a brand name but did have these numbers :> :handwritten on a factory checklist 97-85600 0010411 9-18-89 :> : :> :The control box has 2-MOT., 2-VIB. CONTROL BOX ASSY :> :PART NO: 5585550 / SERIAL NO: W0010411 (and also has a bar scan) :> : :> :The circuit board has SCI-O-TECH 5201003 :> :It has eight relays, all with 12 VDC coils :> : :> :The transformer has PSC-244 EIA696B-8850 without any other info. It :> :is a six pin transformer mounted on the circuit board. There are three :> :spade terminals next to the transformer, Line, Neutral and Ground, :> :where the cord connects. :> : :> :I measured 120 V at the terminals and found 120 V at the transformer, :> :but could not find any low volt output. There are no fuses. I don't :> :have a pin layout for any six pin transformer and need help finding a :> :replacement or another idea. I did try to find the board through a :> :medical parts suppier, but they could not find anything with the :> :numbers I gave them. I don't know who made the bed, which is why I :> :didn't get too far with the parts supplier. :> : :> : :>
:> The manufacturer of your bed is SCI-O-TECH and according to this website :> they no :> longer make hospital beds :>
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:> SCI-O-TECH was acquired by LUMEX INC in 1995 :>
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:> Further investigation seems to indicate that Graham-Field Medical :>
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acquired LUMEX. :> Their :> website lists LUMEX as one of their brands. :>
:> Their bed products are listed here :>
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:> You might contact this company for support (no pun intended) for your :> bed. : : : :Hospital suppliers will not sell you electrical/electronic parts. They :want to sell you new unit. Your help is helpless.
While your assumption is generally the case where run of the mill domestic appliances are concerned, particularly when manufactured overseas, items such as hospital beds which are sometimes manufactured locally, can be easier to get parts for. It is one thing to put a TV or washing machine on the kerb on council pick-up day but you can't do the same thing with a hospital bed. Manufacturers will sometimes help to supply parts to individuals rather than a new bed if you speak nicely to them.
If their bed products are supplied under contract to a large hospital for example, I'll bet they do electrical repairs and replace parts rather than try to sell a new bed to the hospital every time one breaks down. If they didn't offer this service they wouldn't get another contract.
Anyway, the OP has found the problem and fixed it so he doesn't have to contact the manufacturer.