convert crt to lcd, invert colors main board v4

[kaney1]

I want to do the crt to lcd conversion,  has any one had a look into doing it to an older machine? mine is just a 15 inch slant top pe as far as I can tell and it dosent have U45 as the chip to remove.   There was a comment that on a non super board the chip to pull is U52.  How do you tell if you have a super or non super board? Does anyone think I have a non super board because it is an older machine?  Any help would be great as Im trying to fix this machine for a friend who is in hospital.

[knagl]

How do you tell if you have a super or non super board?

Superboards have both PROGRAM and DATA sockets next to each other on the board.  Non-superboards only have PROGRAM sockets (no DATA sockets).

Does anyone think I have a non super board because it is an older machine?

No.  The age of the machine has little to do with it -- it's all about what board was installed in the machine by the last place that installed a board into it.  If you're not sure what board you have, please post a picture of the board from your machine and we can tell you what you have by looking at it.

[kaney1]

Thanks for the reply.  Here it is,  I'm in Australia if that helps

[knagl]

Thanks for the reply.  Here it is,  I'm in Australia if that helps

That circuit board is for an Aristocrat machine -- not an IGT Players Edge Plus.   

[kaney1]

Thanks, does that mean the board cant be converted from cga to vga screen output?  I was thinking about another option of fitting a crt computer monitor to keep the original look.  People in Australia are throwing crt's away to have an lcd screen connected to their computer

[jay]

We are also disposing of the CRTs. I have a 46" Panasonic tube TV with very few hours on it.
As sad as I am to let it go to the recyclers - it is simply in the way compared to my mounted on the wall LCD.
It remains in my upstairs loft as my buddies just laugh at me when I tell them I want it moved out....
Casinos here have long since replaced their CRTs with LCD.

The unique thing with the IGT PE+ is that the system outputs inverted video into a Cetronix 1401 monitor.
You can buy a replacement LCD that is a drop in but it is more bucks than the average home owner of a 20+ year machine is willing to spend.
As I am sure you are aware you can buy a small LCD screen pretty cheap. You can convert CGA to VGA but the problem is the inverted video.
The inversion is not upside down or left to right but rather inverted colors.

CGA to VGA is a totally different (and rather easy problem) in comparison.
http://www.ebay.com/sch/i.html?_nkw=cga+to+vga
Item number: 160902315578 Looks like it will do the trick but I don't know enough about Aristrocrat to be sure.

[kaney1]

Thanks,  I went ahead and bought a cga to vga converter before I realised I didn't have a PE+  board!!  I do feel silly.  I have electronics experience and have always fixed things as a hobby, but Iv'e never had one of these to work with.  The monitor flicks the earth leakage switch on the wall off when iI plug the unit in.  When I pull the monitor out and put it onto a wooden bench next to the unit, I can turn the machine on without any earth leakage  switching off the mains at the fuse board.  The screen rolls vertically until it warms up.  If I touch the frame on the screen and then the door of the machine at the same time I get a boot.  That's why the screen has to go.

[kaney1]

Hi, I am trying to convert  crt to lcd. Does anyone know how would you do this with changing chips on the main board?  It is similar to PE+ boards I asume but I need to know which chips would have to be changed to fix it?

[SS308]

You shouldnt need to change any chips, your mainboard shows it's a mk4 or 540 as we call them here in Aussie, all you need to do is use a cga to vga converter & hook up to your lcd. The signal out put for the crt has red, green blue, earth & a single sinc wire where VGA has the same but to sinc outputs vertical & horizontal, a conversion board is all thats needed.

[kaney1]

No worries thanks.  I bought a board and got it to work.  The screen was jumping sideways at the top to begin with but after tapping the auto button at the right time it fixed it for me.  I'm getting a 19"crt computer monitor to put in it to keep its original look.  The original crt was rolling and switching the rcd on fuse box to off at startup.  it even gave me a boot when I touched the cabinet and the frame around the crt when I was fault finding with the crt out of the cabinet.