Re: Anyone ever attach a mono LCD to a PET?

Yes, the fix was almost like a soap opera with all it's twist and turns.
Although, unlike a soap opera, I enjoyed it a lot.

Phil


On May 9, 2012, at 1:24 PM, MikeS wrote:

> ----- Original Message ----- From: Philip Lord
> To: cbm-hackers@musoftware.de
> Sent: Tuesday, May 08, 2012 11:07 PM
> Subject: Re: Anyone ever attach a mono LCD to a PET?
> 
>> Ultimately I want it to be a all in one unit that I can take to parties
>> and impress the hipster crowd (ok, only joking about that).
> 
> Well, I was impressed when you first finished it and showed it, especially
> after all the tribulations getting the PET board itself working; one of the
> more challenging repair sagas (and 'scope tutorials ;-) on VCF.
> 
> mike
> ******************************************************
> ----- Original Message ----- From: Philip Lord
> 
> If you look  here you can see my PET 2001 motherboard in a suitcase.
> 
> 
> http://web.mac.com/lord_philip/other_computers/20012.html#107
> 
> 
> It was the perfect fit, and I even have a 'PETdisk installed now. I don't
> consider this project complete yet as I want to tidy up the cabling that
> brings the power into the case for a more elegant solution, and finally I
> want to install an internal 7" LCD monitor/TV as I have a couple that I
> purchased a few years ago on a trip to China for about $50 each. I have
> measured things up and if i build a small bracket I can mount the screen on
> the lid of the case (inside of course) and have it 'float' above the lower
> left side of the motherboard. When closed it should fit snugly behind the
> keyboard area.
> Ultimately I want it to be a all in one unit that I can take to parties and
> impress the hipster crowd (ok, only joking about that). I have one of the
> composite adaptors from eBay and I find it to work very well with the LCD
> screens.
> 
> 
> Phil
> 
> 
> 
> 
> 
> 
> On May 9, 2012, at 10:26 AM, MikeS wrote:
> 
> 
> Well, like Ethan I'm thinking about what to do with a spare PET (2001)
> board, not acquire another one ;-)
> ----- Original Message -----
> From: Steve Gray
> To: cbm-hackers@musoftware.de
> Sent: Tuesday, May 08, 2012 9:06 PM
> Subject: Re: Anyone ever attach a mono LCD to a PET?
> 
> 
> If you had your choice of boards to use, the 8296D board would be the
> smallest. It also doesn't have the large capacitors and heat sink that the
> other pet boards do. As a bonus it runs off +5V. An 8296 motherboard (no
> "D") can also be converted easily. These motherboard would fit nicely behind
> a 15" lcd monitor and also have the external keyboard connector. I wouldn't
> want to use the "SK" keyboard though since it would look strange, and
> instead try to mount the keyboard in a smaller enclosure.
> 
> VICE? .... smack! didn't duck fast enough ;-)
> 
> Steve
> 
> From: MikeS <dm561@torfree.net>
> To: cbm-hackers@musoftware.de
> Sent: Tuesday, May 8, 2012 8:10:41 PM
> Subject: Anyone ever attach a mono LCD to a PET?
> 
> 
> 
>> One of my back burner projects has long been using an old terminal for the
>> P/S, display & case, and maybe even the keyboard; unfortunately the PET
>> boards are a little long to fit inside any terminals or monitors that I've
>> seen so it'd probably need to go into a pizza-box case under the monitor.
>> 
>> Just another option...
>> 
>> But heck, anybody can hook it up to an LCD; what you really need is a nice
>> plasma screen; maybe squeeze it into an old Toshiba laptop? A T3200 is
>> almost long enough ;-)
>> 
>> (Of course you could always just use an old monochrome laptop autostarting
>> VICE ;-)
>> 
>> mike (ducks & runs)
>> 
>> ----- Original Message ----- From: "Ethan Dicks" <ethan.dicks@gmail.com>
>> To: <cbm-hackers@musoftware.de>
>> Sent: Tuesday, May 08, 2012 2:53 PM
>> Subject: Re: Anyone ever attach a mono LCD to a PET?
>> 
>> 
>> On Tue, May 8, 2012 at 2:46 PM, Steve Gray <sjgray@rogers.com> wrote:
>>> Hi Ethan,
>>> 
>>> I have looked for mono lcd screens on ebay for exactly the same purpose
>>> and
>>> haven't had any luck. the occasional one would be listed but at
>>> ridiculous
>>> prices.
>> 
>> Obviously, I'm not interested in ridiculous prices.
>> 
>>> I think you'd be better off with a color panel. VGA LCD monitors are
>>> quite cheap but these days it's hard to find one that syncs down low
>>> enough.
>> 
>> A standard VGA panel will _not_ sync down to 15KHz, which is why I
>> wasn't looking at those.
>> 
>>> I have an NEC 1550M unit that syncs down to 15kHz and I was hoping to try
>>> to
>>> hook that up to the pet somehow. I think you need to adjust the voltage
>>> levels though.
>> 
>> Level adjustment is easy enough - a simple voltage divider, or MOSFET
>> circuit or possibly even a 4066 should do the trick.
>> 
>>> The other option is to go with a TV-type LCD unit that accepts composite,
>>> and just make a small adapter to convert the PET signals to composite.
>>> You
>>> can buy a small pre-made board on ebay for $25, but it's really just a
>>> single chip that should only cost a buck or so.
>> 
>> I know how to build a composite adapter for the PET, but having done
>> it in the past, I was less than thrilled with the results (adjustment
>> fiddliness and picture that was not rock-steady and sharp, unlike a
>> "real" PET display).
>> 
>> -ethan
>> 
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>> 
> 
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