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Mystery Hardware, need help identifying what it is


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8 replies to this topic

#1 Zuluster

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Posted 09 March 2010 - 09:53 AM

So I came across this screen in the trash and I cant figure out what it is. Im pretty sure its a front panel attachment for a desktop maybe to show temperature readings or something of the sort, but I'm not sure about that because of the connections. There is the standard power plug for a desktop computer with two prongs in it and another cord that looks like an audio or video-in connection, but I have no clue what it would connect to. There is absolutely no words or numbers that can identify what it is. Only a serial number that hasnt helped at all, 040020. Any clues as to what it is from the pictures?

Attached Files

  • Attached File  031.jpg   140.21KB   20 downloads
  • Attached File  034.jpg   171.25KB   23 downloads
  • Attached File  033.jpg   167.09KB   19 downloads


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#2 MrBruce1959

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Posted 09 March 2010 - 12:51 PM

The white power connecter has 2 pins in it which has pin # 3 which is attached to a black wire, this is ground and pin #4 is attached to a red wire which is +5 volts. This plug connects to a PSU wire which usually goes to IDE harddrives or IDE optical drives.

The female RCA plug could possibly go to an audio device through a RCA patch cord.

Although I might be wrong about that, as there might be another part of this hardware that's missing and that hardware is what the RCA plug attaches to.

Be careful, as this device might be damaged electronicly and could cause damage to your system.

Edited by MrBruce1959, 09 March 2010 - 11:38 PM.

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#3 garmanma

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Posted 09 March 2010 - 01:13 PM

Do you see any FCC numbers stenciled on the circuit board anywhere?
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#4 Zuluster

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Posted 09 March 2010 - 08:30 PM

@MrBruce,
That is a possibility I haven't thought of. Perhaps there is another piece that I'm missing. I'm really intrigued as to what this is, so I'm hoping that there isn't.

@Garmanma,
No numbers at all, just the serial number I posted. Its frustrating. The only other option I could think of is to take apart the circuit board and look for numbers underneath. But it looks like it will be unlikely that there will be any.

#5 MrBruce1959

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Posted 09 March 2010 - 11:54 PM

Well from the pic you posted I only seen two pins on the power connector, it looks like pin #1 and pin #2 are missing.

Unless they were broken off for some reason, I'd say this device was intended to be only powered by the 5 Volt rail from the PSU.

I would try looking for information off of the IC chips on this board, try googling the numbers you see in white lettering on top of the chips.

This might give you an idea what those chips were designed for and what this device is meant to do.

There most likely was a label stuck to the board, but it probably has since fallen off.

I am not sure what the flat square area is though, the one opposite the printed circuit side of the board.

Did you say it looks like a screen? like as in LCD video screen?

I have electronic data books related to all sorts of circuit board components including IC chips, if you can't find any info on those chip numbers, post them and I'll look them up for you.

Also one last request, can you post a pic of a side view of this device? preferably a side showing any sockets or at lease a view of where the connectors you had in your hand are coming out.

Edited by MrBruce1959, 10 March 2010 - 12:02 AM.

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#6 Zuluster

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Posted 10 March 2010 - 10:03 AM

Ok, I cracked it open to see what I could find and here are the results (sorry if they are a little blurry):

Posted Image
Posted Image
Posted Image
Posted Image
Posted Image
Posted Image

I also found a forum thread where a guy has just the screen which says SHARP PC0VP0037 on the back, this was covered by the board before. I also noticed a little black switch next to the power cord and rca cord. Other forum with pics of the LCD screen

@MrBruce1959,
I'm not sure where the IC chip is. If its the black one that says UTC TL494, I googled that, but only got Asian sites. The two pins inside weren't broken off, at least from the looks of it, there was only supposed to be two.

That flat square area only says HIGH VOLTAGE CAUTION with some chinese(?) above it.

#7 garmanma

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Posted 10 March 2010 - 10:09 AM

But it looks like it will be unlikely that there will be any.

It's got to be there somewhere
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#8 mrxb06

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Posted 09 April 2010 - 11:49 PM

This device is a composite video monitor it is powered via 12vdc and the rca connector will accept ntsc composite video only. i have a pair of these im attempting to find information on driving the lcd portion of these screen from another source ie vga or standalone micro-controller

#9 Zuluster

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Posted 23 June 2010 - 10:06 PM

Thanks for the info, here is a cable to convert from S-video out to Composite in. I also found this to do a VGA to composite converter. I'll have to see what I can try to hook up to it.




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