FS: 7 inch LCD Monitors

YellowDog

In Memoriam

Donor 2011, 2013
Joined
Apr 12, 2008
Messages
9,851
Reaction score
158
Location
Humble, Texas
Rating - 100%
74   0   0
UPDATE: I am down to the last 2 monitors. These have been reserved but not paid for. If they are not paid for (or arrangements for paying for them) by Sunday 6 pm Central time, there will be a second chance drawing for the right to buy 1. Details are at or near the end of this thread.

Thanks.

This thread got off topic over in the Monitors section, so I thought I would move it over here. (link: http://forums.arcade-museum.com/showthread.php?t=99919)

These are 7" LCD monitors used in pachislot machines. I have not tried the pinout recommended by one of the hardware gurus on the pachi boards (details in the other thread) as yet. They look great, almost unused. Most come with a cable that attaches to the power and video connector on the back.

Since I have not gotten them running yet, I am letting them go for $20 + $5 flat rate shipping to the lower 48. Since I can get 2 in a small flat rate box I'll combine shipping for orders of 2 ($40 + $5 shipping for two).

PM me for details.

picture.php

picture.php


ken
 
Last edited:
To respond to a question that was sent to me: Yes, I might be interested in trades for monitors instead of cash. Particularly Williams parts (for example):
- Joust 2 Sound board
- Bubbles ROM board
- Joust 2 marquee
- Sinistar I/O board
- any Mystic Marathon parts
- Defender control panel
- MPU boards

ken
 
Here is the spec sheet for these panels.

http://beyondinfinite.com/lcd/Library/Panasonic/TR-LM7WR3PS.pdf

Looks like they are RGB (NTSC) with 480x234 display which makes sense for the wide panel. This is just my interpretation since the spec isn't in English. :)

Edit: It syncs to 15Khz too, so CGA is possible. Not sure if you can get it to letterbox, but that would be awesome. I ordered one to test it out. I can use a cheap panel for my custom jukebox if it doesn't work for a bench monitor.
 
Last edited:
OMG this may make for a pretty awesome SuperGun. I have thought of rebuilding my test rig to actually not be so darned ghetto.
 
VJ, Thanks for the spec sheet. My Japanese is more than rusty, but it looks like they also have a VGA mode (called Widemode) at 1440x234.

I guess we'll find out when somebody gets the first one fired up. Thanks for posting the spec sheet.

The race is on! Who is going to get their screen to flicker to life first......

:outtahere:

ken
 
VJ, Thanks for the spec sheet. My Japanese is more than rusty, but it looks like they also have a VGA mode (called Widemode) at 1440x234.

I guess we'll find out when somebody gets the first one fired up. Thanks for posting the spec sheet.

The race is on! Who is going to get their screen to flicker to life first......

:outtahere:

ken

Well, hopefully my test pattern generator will get here the same day as the display! I saw that data as what looked to be another resolution mode, but didn't know to make of it since English is my only language. :)

That VGA Widemode is interesting since it is basically the same number of pixels as VGA, but laid out horizontally. I'm going to have to check that mode out for sure.
 
VJ, Thanks for the spec sheet. My Japanese is more than rusty, but it looks like they also have a VGA mode (called Widemode) at 1440x234.

First of all, I'm not convinced that's the 'right' datasheet, since it's dated 2004, and the LCDs are 2002...

1440x234 is just counting all the R/G/B pixels separately...

It's just 480(x3 colors) x 234,which gives a pretty wide aspect ratio... it looks like there's a normal/wide pin, but since I don't know any japanese, I can't tell if it just uses fewer pixels to get a more normal aspect ratio, or if it is just a stretch/compress kind of thing...
 
First of all, I'm not convinced that's the 'right' datasheet, since it's dated 2004, and the LCDs are 2002...

1440x234 is just counting all the R/G/B pixels separately...

It's just 480(x3 colors) x 234,which gives a pretty wide aspect ratio... it looks like there's a normal/wide pin, but since I don't know any japanese, I can't tell if it just uses fewer pixels to get a more normal aspect ratio, or if it is just a stretch/compress kind of thing...

Why don't you think that it is the right data sheet? You can see the TR-LM7WR3PS on the picture of the back of the display. Also, another site that I hit with the TXFBM019TB2 had the "TR-LM7WR3PS" in parenthesis after it. The data sheet was obviously updated in 2004, but that doesn't mean it is for a different display. Even if it was it obviously looks to be a direct replacement and the data sheet would still fulfill its purpose. It is possible that TR-LM7WR3PS is the controller on the display or something, but some sites use that as the display panel reference.

I agree about the 1440 being the individual color cells in each pixel. I'm just wondering if there are different addressing options and that is what the text was about. Either way, I'm hoping the normal setting will use 320x234 in the center of the display and leave black bars. If it stretches a 4:3 signal, it isn't as nice, but it will still work for a bench display. I would probably use it for a different project though and just utilize the full 480.
 
Why don't you think that it is the right data sheet? You can see the TR-LM7WR3PS on the picture of the back of the display. Also, another site that I hit with the TXFBM019TB2 had the "TR-LM7WR3PS" in parenthesis after it.

Ah... now I see what you're talking about... good detective work... might have to get a couple to play with myself :)
 
Ok, I'm excited... I checked my tracking number and it says it is delivered. I really hope my test pattern generator is delivered today too. That would make it way easy to test this.

-VJ
 
Ok, I'm excited... I checked my tracking number and it says it is delivered. I really hope my test pattern generator is delivered today too. That would make it way easy to test this.

-VJ

Which pattern generator did you get?
 
Last edited:
Ok, the display showed up, but my generator isn't here yet. I went ahead and hooked it up to power to see if the backlight would come on. :) Now I just need to grab something that is putting out RGB.
 

Attachments

  • Display.jpg
    Display.jpg
    27.3 KB · Views: 183
Ok, the display showed up, but my generator isn't here yet. I went ahead and hooked it up to power to see if the backlight would come on. :) Now I just need to grab something that is putting out RGB.

Nice!

Mind posting pics of how you connected power? Just +12 into the 2 edge pins and GND for the rest?
 
Nice!

Mind posting pics of how you connected power? Just +12 into the 2 edge pins and GND for the rest?

I used a jewelry flathead screwdriver to get the pins out of the connector. Then just grabbed pins 2, 3, 4 with the ground alligator clip from my power supply and 1, 5 with the positive alligator clip. I set the power supply to 12V and that is it. I adjusted the brightness since I took that pic and it has a pretty good adjustment range considering it is showing "black".
 

Attachments

  • Hookup.jpg
    Hookup.jpg
    40.7 KB · Views: 215
I used a jewelry flathead screwdriver to get the pins out of the connector. Then just grabbed pins 2, 3, 4 with the ground alligator clip from my power supply and 1, 5 with the positive alligator clip. I set the power supply to 12V and that is it. I adjusted the brightness since I took that pic and it has a pretty good adjustment range considering it is showing "black".

Cool. i did not realize that the wires came with it...
 
Back
Top Bottom