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urc-9800 backlight kaput

 
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captainvid



Joined: 27 Nov 2003
Posts: 10

PostPosted: Wed Dec 03, 2003 12:23 am    Post subject: urc-9800 backlight kaput Reply with quote

I have a URC-9800 that also recent had the backlight fail. Does anyone have a schematic for this unit?
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The Robman
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Joined: 01 Aug 2003
Posts: 18312
Location: Chicago, IL

PostPosted: Wed Dec 03, 2003 12:08 pm    Post subject: Reply with quote

Yes...

1. Go to: http://groups.yahoo.com/group/jp1/links/
2. Click on "Remote Technical Information"
3. Click on Technical Details URC-9800
4. Click on Detail

But, what you probably need is a PX13193-H transformer, available for $6 from http://www.hovisdirect.com
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Rob
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captainvid



Joined: 27 Nov 2003
Posts: 10

PostPosted: Fri Dec 05, 2003 12:31 am    Post subject: Reply with quote

I tried that site but it comes up with errors and wont load. Did you save a copy of it somewhere?
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The Robman
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Joined: 01 Aug 2003
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Location: Chicago, IL

PostPosted: Fri Dec 05, 2003 11:57 am    Post subject: Reply with quote

I probably have a copy of it at home, I'll try and remember to take a look.
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Rob
www.hifi-remote.com
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mr_d_p_gumby
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Joined: 03 Aug 2003
Posts: 1370
Location: Newbury Park, CA

PostPosted: Fri Dec 05, 2003 12:16 pm    Post subject: Reply with quote

The Robman wrote:
I probably have a copy of it at home, I'll try and remember to take a look.
I have a copy of the schematic PDF. Let me know if you need me to email it.
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Mike England
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JustinGoodman



Joined: 08 Dec 2003
Posts: 5

PostPosted: Mon Dec 08, 2003 2:09 pm    Post subject: Reply with quote

Mine went out also. So this is usually the transformer and not an LED that has gone bad?
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Mark Pierson
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Joined: 03 Aug 2003
Posts: 3011
Location: Connecticut, USA

PostPosted: Mon Dec 08, 2003 2:13 pm    Post subject: Reply with quote

Models that use the transformer also use an EL (Electro Luminescent) sheet between the button membrane and the PCB to create the backlight instead of LED's.
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JustinGoodman



Joined: 08 Dec 2003
Posts: 5

PostPosted: Thu Dec 11, 2003 3:13 pm    Post subject: Reply with quote

Mark,

I saw in another thread someone saying that the EL sheet may have come loose from the transformer. I'll have to check it out under the hood. Thx
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The Robman
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Joined: 01 Aug 2003
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PostPosted: Thu Dec 11, 2003 3:36 pm    Post subject: Reply with quote

Btw, if you need the schematic for anything, it's here:
http://www.hifi-remote.com/files/schematics/URC-9800.pdf
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Rob
www.hifi-remote.com
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mr_d_p_gumby
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Joined: 03 Aug 2003
Posts: 1370
Location: Newbury Park, CA

PostPosted: Thu Dec 11, 2003 3:44 pm    Post subject: Reply with quote

JustinGoodman wrote:
I saw in another thread someone saying that the EL sheet may have come loose from the transformer.
What usually happens is one of two things:

1) The EL panel does not make proper contact with the PCB. This happens most often after someone takes the remote apart, but it can also happen if the EL panel shifts position when the remote is dropped, or some foreign matter gets between the contacts.

2) The transformer gets destroyed when it falls off the PCB (due to dropping the remote). On some models, the transformer is not securely attached to the PCB, and it is easy for this to happen. In these cases, some hot glue applied to hold the transformer to the PCB can be a good preventive measure.
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Mike England
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