leburg@mentor.cc.purdue.edu (Brian Pierson) (02/20/90)
Hello to all the Netters, I have a Hackintosh SE and a Samsung MZ4571. It is close to being done except I have two big problems. 1. I can't get the screen to center itself. I have tried to increase the delay by putting in the fourth cap and by putting in more resistance as per Les Hall's Computer Shopper article. 2. The screen rolls vertically Ok gang any clues? Does anyone know if Les Hall has an Internet connection? If so can or wil you e-mail his address Thanks for any and all help Brian Pierson pierson@zeus.mgmt.purdue.edu
whit@milton.acs.washington.edu (John Whitmore) (02/21/90)
In article <7658@mentor.cc.purdue.edu> leburg@mentor.cc.purdue.edu (Brian Pierson) writes: > I have a Hackintosh SE and a Samsung MZ4571. It is close to being done >except I have two big problems. > > 1. I can't get the screen to center itself. I have tried to > increase the delay by putting in the fourth cap and > by putting in more resistance as per Les Hall's > Computer Shopper article. > > 2. The screen rolls vertically > The screen centering should be mainly adjusted with the controls in the monitor (possibly labelled horizontal phase, or phase, on the circuit board). If this range is inadequate, make a LARGE change by using the inverted HSYNC signal, i.e. add one section of an inverter to the HSYNC signal, then try again with the monitor adjustment. The VSYNC signal from the SE is not similar to that on the MacPlus; you may have to lengthen the signal by some means: a monostable (one-shot, 555 timer) or a Schmitt trigger and some diodes/resistors/capacitors. The VSYNC pulse from the SE board is very short, compared to that from the MacPlus, and may not be correct for the Hackintosh circuit and your monitor. Try to ensure that VSYNC stays low for about 2 ms. I built my FrankenTosh a few years before the articles came out, and felt my way through my entire video conversion with an oscilloscope and no schematics. It wasn't TOO bad. I am known for my brilliance, John Whitmore by those who do not know me well.
mikef@uncecs.edu (Michael R. Freedberg) (03/27/90)
I need to find out for some friends who are considering a move to Europe with some new computer. The Student Stores is having a great sale on Mac Plusses, but that is also the only machine without the universal power supply. My question is: can one replace the Plus power supply with one of the universal ones? Does the Plus have a different power requirement which would make this impossible. User Services thinks it can be done, while the Student Stores says it cannot!! Please respond by e-mail to:" mikef@ecsvax.bitnet Many thanks, netters!! Michael Freedberg UNC@Chapel Hill, User Services, MicroComputing Services Software Trainer -- |Michael Freedberg | |Software TRaininrainer & Comp. Lit. Grad. Student | |UNC@Chapel Hill e-mail:mikef@ecsvax.bitnet | |"All this and brains too!!" |
Justin_Randall_Padawer@cup.portal.com (03/29/90)
The standard Mac Plus power supply board can indeed be replaced by the Apple international version.