Guys
I hope you are all still on line ... after 4 years.... and can recall the problems you had with getting an LC475 to work to an Apple Multi Scan 15 Display?
I have exactly the same problem BUT I have a 3 row 15 pin male to male cable and a 2 row 15 pin male to male AND an adaptor and just to be friendly I also have the orange light on my Display but a black screen!
I know the screen works because I also have a Powerbook 1400c/166 and the dongle that allows you to run it to another screen and I get a nice clear picture and the arrow head cursor - but oddly no other part of my PB 1400 screen! (thats not a problem at present but if anyone knows the answer Id be glad to hear... I have different problems with the PB on which - in error I think - I installed 9.1 and the cd and floppy don't recognise any CD or floppy inserted!
So.....My LC475 and PB 1400 have been with me since new but had not been used for perhaps 14 years! That they both started up was just luck...
I do have an odd thing though, the power on off switch on the 475 was not clicking and didn't seem to want to with on so no boot!
I stripped the power supply out today and cleaned it all up result we booted!
However the tones are very musical, 3 sets of them one after another!
I knew the PRAM battery was on the way out and I have a spare which I will try replacing.
Reading the plethora of citations you guys shared with one another there seems to be a suggestion that while the MS15D is not supposed to have a problem working with an LC475 it clearly does.... and advice of what sorted your problem that you can share?
Colin
History: Apple ][, Lisa, Mac Plus, SE30, LC475, PB1400, Performa 630, Pismo, iMac G3, G4 and MCP w RD ;-) and several T shirts ;-)