6.5 inch LCD panel or monitor from behind your spider webs ?

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Externet
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6.5 inch LCD panel or monitor from behind your spider webs ?

Post by Externet » Sat Apr 22, 2017 3:56 pm

Hi.
Please let me know if you have a 4:3 ratio 6.5" (diagonal) surplus LCD that you may sell; bare panel, chassis, or monitor. I will need it to display composite video or RGB or CGA video, adding a driver board if it does not have that input.

I believe source can be from a headrest, cctv, ...

Thank you.
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haklesup
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Re: 6.5 inch LCD panel or monitor from behind your spider we

Post by haklesup » Tue Apr 25, 2017 11:44 am

Most small LCDs I had seen were either Analog inputs for Video but now there are more all Digital choices.

Here is a new one that might work and is low cost
http://www.icstation.com/0072-touch-scr ... 11884.html
http://www.icstation.com/icstation-modu ... -5184.html

you can ignore the touch panel features if you want. Search that site, they have more options


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Externet
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Re: 6.5 inch LCD panel or monitor from behind your spider we

Post by Externet » Mon May 08, 2017 11:30 am

Thanks, gentlemen.
Gave up and bought a $18 - 5" diagonal LCD with composite input as could not find the precise one to replace my spectrum analyzer 'green and black' CRT.
----> https://www.aliexpress.com/item/New-Hot ... bdaf17b552
and made a AD724 circuit to convert the CGA from the instrument external output to feed the new display composite input. Not Good. Unstable. Fed with a camera works fine, but the CGA signal did not convert well. :sad:
A 7" LCD would not fit in the cavity. And of course, none in the market is CGA.
- Abolish the deciBel ! -


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Externet
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Re: 6.5 inch LCD panel or monitor from behind your spider we

Post by Externet » Mon May 08, 2017 2:44 pm

Thanks, John.
Yes, that board would give me VGA; and VGA monitors in 4:3 format in 6.5 inches are unobtanium so far. Or at outrageou$
Found 6.5" - 4:3 LCD panels but without driver board. On top the risk of not performing with my available signal, not found on quantity 1. :sad: :sad:
I will have to forget the project. The analyzer is working perfect on CRT, it was one of those things set aside for an adrenaline day to tackle. No luck.
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Janitor Tzap
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Re: 6.5 inch LCD panel or monitor from behind your spider we

Post by Janitor Tzap » Mon May 08, 2017 5:18 pm

If your only looking for just one.

Try going to your local Junk Yard, or Salvage Yard.
Find an SUV or Mini-Van that still has the Head Rest Monitors in it.

Though, most Yards will pull the radio, players, monitors, etc from the vehicle.
So, if they have a indoor parts area for electronics, you may find one already pulled.

Take note of the Year, Make, and Model of the vehicle that it came out of.
Then check Chiltons or Haynes Manuals for the wiring diagram on how to connect up the monitor.


Signed: Janitor Tzap

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haklesup
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Re: 6.5 inch LCD panel or monitor from behind your spider we

Post by haklesup » Tue May 09, 2017 4:27 pm

not surprised converting to analog video was unsatisfactory. I believe CGA was 4 bit color and EGA was 8 bit color. 10 years ago I would have had a CRT for you, long gone now. Maybe you can convert CGA to VGA by padding the bits up to 16bit resolution. that's probably going to take a microcontroller though. I thought the VGA shared the same connector as EGA. Might be a way to convert to the VGA connector with cables only, I thought they were backward compatible except for the cable.

There do seem to be such things http://www.allelectronics.com/item/ad-6 ... fgodrpgKtw

If you can drive VGA, then you can use just about any PC monitor.

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Externet
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Re: 6.5 inch LCD panel or monitor from behind your spider we

Post by Externet » Tue May 09, 2017 6:18 pm

Thanks, haklesup.
Your link shows a circuit board surprisingly filled with nothingness.
It would be good just to validate the RGBIHV signal source I have to see it in a modern computer monitor.

Will try this:
----> https://sites.google.com/site/h2obsessi ... idth=95%25
Here is another with more nothingness:
----> http://site.ambery.com/webgraph/AV1-DB9 ... agramR.gif
- Abolish the deciBel ! -

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