On Jul 18, 2009, at 4:48 PM, J M wrote:
> Sounds like a bad video board, also if not mistaken has the > powersuppy in one piece, good luck finding parts. The 128, 512, 512KE and the Plus had the same analog board, which also contained the power supply. This changed, a little, with the first SE (and was continued to the SE/FDHD and the SE/30) which had most of the analog function, but the power supply was a separate unit. There is a monitor and TV components shop in NYC which sells complete upgrade kits intended for the128/512/512KE/Plus and also the SE/SE/ FDHD/SE/30. The early one needs the most help as it definitely needs the upgraded "bleeder type" flyback transformer (the earliest Macs were NOT bleeder type), but it also needs replacement diodes as the original diodes were completely inadequate. Both usually need a replacement horizontal blocking capacitor, as this is what usually takes down the entire video board, and a few other essentials. The kits were not expensive, about $20 so, and it brings the oldest Mac up to the latest specs, for a 9" machine. But, $20 is more than most 128 or similar Macs are worth. I used to receive catalogs from the vendor on a periodic basis, but I haven't since about 2000. Perhaps they're out of business. Their business was largely centered around replacement flybacks and so-called "triplers" (for color TVs and a few Sony Trinitron monitors), and CRTs are very much on the "outs", so they may have gone the way of the Dodo Bird. It'll take some research, but flybacks, blocking capacitors and all the other "usual suspects" which are needed for 128, ..., SE/30 9" Macs may still be available. As for me, I kept two SE/30s and trotted off all older 9" Macs to the local landfill years ago, where I had to pay $7 per CRT for each unit which was disposed of. Such is the reality of leaded glass in CRTs. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
