[TechAssist] Re: Viewframe Spectra - Need specs for AC adaptor
- From: Gary McCartney <gary@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 23 Aug 2004 00:22:54 -0400
Can you open it up and look for a 3 pin regulator IC such as 7812 or
7809 or other type of regulation? That would tell you the voltage the
unit runs on, then add a few Volts dc to arrive at the adapter voltage.
I would add about 4V, so if it uses a 7809, then I'd try a 13V adapter.
This would be ok as long as there are no other components in the unit
that run on the raw (unregulated B+) which could be too high. For the
current, you could place a mA meter in series with the adapter to see
what current it draws, then go 1 1/2 times or higher that amount for the
adapter current rating.
Gary McCartney
McCartney Electronics
Guelph Ontario Canada
Est. 1984
email: gary (at) number63.ca
John Myers wrote:
> Thanks Max, but I was hoping to find the reccomended specs for this. I found
> a post elswhere that hints at 12V. But, I'm not sure. It's for resale, so I
> want to be sure.
>
>
> John Myers
> Myers TV Service Since 1984
> Alliance, OH
> ph 330-821-6545
> myers_tv@xxxxxxxxxxxxx
> www.alliancetvrepair.com
>
>
> ----- Original Message -----
> From: "Old TV Man" <mebonnell@xxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Sunday, August 22, 2004 6:22 PM
> Subject: [TechAssist] Re: Viewframe Spectra - Need specs for AC adaptor
>
>
>
>>John, I don't have your answer but I have a universal adaptor that goes
>>from 3 volts up to 12 volts. If you want it I will send it.
>>
>>Max Bonnell
>>Bonnell TV
>>Robinson, IL
>>
>>
>>
>>Sender: techassist-bounce@xxxxxxxxxxxxx From:
>>myers_tv@xxxxxxxxxxxxx(John=A0Myers) Date: Sat, Aug 21, 2004, 9:44pm
>>(CDT+1) To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Viewframe
>>Spectra - Need specs for AC adaptor. Reply=A0to:
>>techassist@xxxxxxxxxxxxx
>>
>>Hi, This is a ViewFrame Spectra LCD panel. It site on a Overhead
>>projector, and lets you project a video image on a screen. It was built
>>by Nview Corp.
>>I bought this without the AC adaptor.
>>
>>Does anyone have any inf on this? Specifically, I need voltage & current
>>info for the AC adaptor.
>>
>>Thanks,
>>John Myers
>>Myers TV Service =A0 =A0 =A0 Since 1984
>>Alliance, OH
>>ph 330-821-6545
>>myers_tv@xxxxxxxxxxxxx
>>www.alliancetvrepair.com
>>----------------------------------------------
>>
>>
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