[net.micro.mac] A bigger Mac Screen

kearns@garfield.columbia.edu (Steve Kearns) (02/04/86)

A year or two ago I remember someone suggesting the following trick.
The mac screen can be made 20% bigger just by twiddling a few mini-pots
to get the screen to expand to fill the whole visible CRT.   I heard the only
reason the screen is its current size is to make the letters be actual size.
That is a real stupid reason.  

Does anyone know how to do this?  Has anyone done this?  Recommended?

-going blind in America
kearns@columiba-20

berry@tolerant.UUCP (David Berry) (02/06/86)

> 
> A year or two ago I remember someone suggesting the following trick.
> The mac screen can be made 20% bigger just by twiddling a few mini-pots
> to get the screen to expand to fill the whole visible CRT.   I heard the only
> reason the screen is its current size is to make the letters be actual size.
> That is a real stupid reason.  
> 
> Does anyone know how to do this?  Has anyone done this?  Recommended?
> 

	0.  Get plastic (must be plastic!) adjustment tools.  You
		need one that is a hex, and one a slot.
	1.  Take cover off.
	2.  On the left side is a piece of cardboard with relatively
		clear markings, adjust the appropriate pot/coil to
		suit your preferences.
	3.  Replace cover.

I have recently performed the adjustment on my Mac.  I had my mac open to
install a MonsterMac and the adjustment was way off after ComputerLand had
replaced the power supply.  I might note that in my case I wasn't able to
actually get the entire screen filled and still have square pixels.

	From a clearer (it's now focused!) mac,
-- 

	David W. Berry
	dwb@well.UUCP
	Delphi: dwb
	{ucbvax,pyramid,idsvax,bene,oliveb}!tolerant!berry

	I'm only here for the beer.

crshnider@watnot.UUCP (Chuck Shnider) (02/07/86)

Once one knows the proper pots to adjust, Is there any easy way other
than guesswork to make sure that the larger screen has an aspect ratio
similar to the normal size screen?  

crshnider@watnot.UUCP

keith@ssc-vax.UUCP (Keith Nemitz) (02/10/86)

> 
> A year or two ago I remember someone suggesting the following trick.
> The mac screen can be made 20% bigger just by twiddling a few mini-pots
                            ^^^^^
      What about edge distortion?


*** REPLACE THIS LINE WITH YOUR MESSAGE ***

sam@ccitv3.UUCP (02/13/86)

> Once one knows the proper pots to adjust, Is there any easy way other
> than guesswork to make sure that the larger screen has an aspect ratio
> similar to the normal size screen?  
> 
> crshnider@watnot.UUCP

To whom it may concern:

I took my mac to the shop the other night and they grew the screen for me.
With the cover off and the mac plugged in and on (MacDraw or Paint booted),
they drew a circle and then adjusted the pots so it looked like a circle.

Pretty easy, huh?  Good Luck!

Sam Mantel -- Roch, NY