Currently Being ModeratedApr 27, 2011 7:03 AM (in response to loyle)
Any good used computer store should have them. I support computer recycling shops.
Here is a link that shows newer adapters:
I am still looking for the fifteen year-old knowledge base article that shows what you are looking for.
It was linked at the bottom of the page!
Oddly enough, the chart does not list the 15 inch multi-scan display. The adapters listed for the 17" ms should work as well.
Currently Being ModeratedApr 27, 2011 7:08 AM (in response to Appaloosa mac man)
Here is a sample of a vendor but they are out of stock. No wonder at twenty five cents.
If you google with:
macintosh video adapter Cable, Adapter, 15-pin 3 row to DB-15
you can narrow your search.
Currently Being ModeratedApr 27, 2011 9:17 AM (in response to loyle)
If you can find this adapter, it's better than the one that Jim linked at geeks.com. The 10 DIP switches provide greater compatibility. The declining demand for this product may make it more difficult to locate than in previous years. I assume that you're trying to plug the MultiSync's display cable into a newer Mac with a VGA-ported display card. In this case, the adapter doesn't change the gender of the connection. It accepts the male DB-15 Mac display plug, converting it to a male VGA plug.
Currently Being ModeratedApr 27, 2011 9:54 AM (in response to loyle)
OMG this is the first time I ever posted anything and Man, I got new life. You guys were great and I really thank you. I gonna try to find and purchase one. Thanks Jeff and Appaloosa mac man. K, in case this doesn't work out. I'll give you a run down on what I'm trying to do incase you have better suggestions. I own a LC 475(the monitor is dead) and two Power PC 6100 with the Monitor I described earlir. All I really need this for is to get each hard drive(three in total) and get those pc's running to see what's on them(but I don't have this monitor problem). I want to check all my harddrives so I get everthing off them(I own a Imac now) and get them to my new Imac(I also own a Blueberry Imac 3G)Since my LC 475 and Power PC 6100's are scsii and my Imacs(both) are usb I heard I can purchase a 10 baseT crossover cable. If that's true, I need to know what's on those Harddrives. If I get the ethernet cable would I even need that monitor adapter casue I will be able to network my Imac and Power Pc with the ehternet cable?
Currently Being ModeratedApr 27, 2011 3:14 PM (in response to loyle)
Turns out you will not need either one of the adapters we suggested. What you need is the Cable, HDI45 to DB15, Display Adapter. Visit this site to take a look at it:
The 15" MS monitor will plug right into the LC 475. The 6100/7100/8100 series of computers adopted a different high density monitor connection. If you look at the top adapter, Cable, Adapter, 45-Pin, you will see all the components that were built into the HDI45 plug. That octapus cable is the opposite of what you need for your multi-sync monitor. Fortunately, that style of HDI died in one generation.
You said that the monitor on the LC475 is dead. Maybe not. First, look here to make sure we are talking about the same computer:
Try this trick. Turn the computer on at the power switch. Leave it on for ten seconds to load the capacitors and all, then turn the switch off and back on quickly. That might wake up the video circuit to the monitor. Details on why later if you want to know. A dead PRAM battery in a 610 or a 6100 will definately cause the monitor to not wake up. But, rather than buy a new battery for a computer you never intend to use on a daily basis, use the on-off-on trick and save the five bucks for something else.
Yes you can network the computers if you want to go to that trouble. Doing it 'headless' would not be easy. You have to configure the network from both ends. If the non-fruit colored iMac is new enough then you will not need a crossover cable. It will auto detect. If it is too new, you will have appletalk issues to deal with.
If you are near a large city with a Mac user group, you might just borrow a SCSI zip drive and a USB zip drive. A platinum G3 would also be nice. You can find them for $5 at recyclers. The original G3s will take both SCSI drives and IDE drives in the same case.
Options abound. If you are going to buy an ethernet cable, it means you do not have one. Explore other options while you are at it. If you are in the NW, we can give the name and street address of where to buy cables for $1, zip drives for $2 and G3s for $5. Good luck.
Currently Being ModeratedApr 27, 2011 3:31 PM (in response to loyle)
The display adapters have three ID bits that are powered, grounded or wired together to identify [to your Mac] the capabilities of your display, and allow the Mac to choose sensible resolutions. You may need the adapter for a few minutes to turn on File Sharing.
If you have a home Router of almost any description, you can connect everything up there and skip the crossover Ethernet cables and use all straight cables.
The LC475 probably does not have Ethernet capability, but you can use diskettes to the 6100 and go from there.Beige G3, G4/867, G4/dual 1.25 MDD, MacPro'09 w cheap SSD, Mac OS 8.6 or Earlier, and 9.2, 10.5 and Server - LW IIg, LW 4/600, ATalk ImageWriter L
Currently Being ModeratedApr 28, 2011 5:55 AM (in response to Appaloosa mac man)
This document cover the original Mac II era equipment. I strongly suggest you print off a paper copy and archive it yourself:
This document is the best at describing the method behind encoding used in later beige Macs:
This note seems much less helpful, but addresses specific monitors:
The movie version:
Principle 1) to run a VGA monitor, you need Red, Green, Blue, H-Sync, and V-Sync. These must be on specific pins and are not negotiable.
Principle 2) to get that Monitor to work with a beige Mac, you need to provide the correct sense codes at startup. The dip-switch adapters change the connections on ID bits on pins 4, 7, and 10 to produce the right codes at the Mac.Beige G3, G4/867, G4/dual 1.25 MDD, MacPro'09 w cheap SSD, Mac OS 8.6 or Earlier, and 9.2, 10.5 and Server - LW IIg, LW 4/600, ATalk ImageWriter L
Currently Being ModeratedApr 28, 2011 7:27 AM (in response to Grant Bennet-Alder)
Just the detail I was looking for to have on file. We have always had monitors to swap out until we found one that worked. Now I might just go back and play with some of the obscure monitors and nuBus cards.
Currently Being ModeratedApr 28, 2011 7:51 AM (in response to Appaloosa mac man)
The edit option expired.
This article shows the pin assignments for an adapter to sense properly:
Currently Being ModeratedApr 28, 2011 5:48 PM (in response to Appaloosa mac man)
When you work through all the permutations in ALL the articles, you start to notice that although there are a ton of possible codes, most of them are for displays that will never be seen again.
Currently Being ModeratedApr 28, 2011 5:44 PM (in response to Appaloosa mac man)
There is one more adapter that ought to be immortalized with this group. The one for the Blue & White G3 to use an older monitor. It uses an available Voltage (the "ground" from a low-going sync signal) to tell the Blue & White that it ought to look at the pins as ID bits, not as a DDC "side channel" that can be used to discuss the display's capabilities
Currently Being ModeratedMay 23, 2011 12:45 PM (in response to loyle)
Hi Appaloosa mac man . I'm so late on getting back on this (really busy at work), but your first link is for only Mac Books(not compatible with my computer) as its also using USB.
Your Second link (Cable, Adapter, Multi Scan 17 to Mac II) is this the one your talking about? Would you know where it can be purchased?
Currently Being ModeratedMay 23, 2011 1:30 PM (in response to loyle)
" I own a LC 475 (the monitor is dead)"
Not quite to the point of your question but, FWIW, if the 475 makes all the normal startup chimes and whirring, but the display remains black, it can be something as simple as a dead PRAM battery and NOT the monitor. That model and a few others will display no video when the PRAM batery is dead.
I nearly bought a new monitor for our P475 when it did the black screen thing years ago. Fortunately, I found an Apple reference to this while looking for something else.
Here's the Apple article on the subject (note that 61XX models are also so affected by a bad battery):
Have you tried the monitor from the 475 on another older Mac?
PS: Hi, Jim! Is your e-mail working?MacBook Pro, Mac OS X (10.6.7), Late 2007 2.2Ghz 15"