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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