dragon_x
Well-known member
oh nice. do you know any working images of disks? We found two sites with images and we have a problem with making working disks
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Mac LC and DB15 to VGA adapter problem...
- Thread starter dragon_x
- Start date
cheesestraws
Well-known member
dragon_x
Well-known member
thaks, for now we want to only check that mac try to boot cause we still have a problem with monitor connection. should mac try boot automaticaly after floppy disk will be insterted to drive?
Oberlehrer
Well-known member
I don't know if this is a question of adjusting or of monitor features. Sometimes certain older monitors work better with older computers than newer ones. I have an old Panasonic LCD monitor for such cases.
cheesestraws
Well-known member
Yup, put the disc in and it should chug away and boot from it. You should be able to hear it reading. It spitting the disc back out sounds like it's trying to boot from it and failing, which means that large chunks of it are working at least.
dragon_x
Well-known member
thanks. if macs boot that is a chance that it works properly. otherway i am still looking for adapter (db15 to vga) in europe to receive it fast or good pinout for diy. unforunately i cant find scheme with switches, there is only simple pinouts.
dragon_x
Well-known member
we tried on several monitors with different effects. maybe it's a matter of matching the frequency, after all, modern monitors and macintosh differ three decades...
Oberlehrer
Well-known member
Both the IIsi and the LC475 output at 66.7 Hz; and here that particular monitor works with the LC475 at 640x480 (and a PM8100 and a PM4400) but not with the IIsi. My guess is a different sync type.
dragon_x
Well-known member
We will try to get Multisync or Multiscan monitor. it should be a solution. My friend tried to connect sometime ago LC to Multisync monitor and it worked... Unfortunately we havent any multisync monitor
Oberlehrer
Well-known member
I bought an old NEC EA190M a couple of weeks ago that also plays nicely with the IIsi. Those monitors probably cost close to nothing everywhere; I paid 15 € for mine.
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dragon_x
Well-known member
Not in Poland. I jave checked CRT monitor prizes. We easily can find monitors for 10-15 euro but many prizes are between 1000-1300 PLN that is 250-350 EUR. Polish traders tries to earn as much money as they can...
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Oberlehrer
Well-known member
The NEC I mentioned is a TFT, though.
https://www.ebay.pl/itm/NEC-MultiSync-EA190M-19-1280-x-1024-250-cd-m-5ms-VGA-DVI-Weis-Silber/302801275915
Sure, that's twice as much as I paid for mine. Still not too bad.
https://www.ebay.pl/itm/NEC-MultiSync-EA190M-19-1280-x-1024-250-cd-m-5ms-VGA-DVI-Weis-Silber/302801275915
Sure, that's twice as much as I paid for mine. Still not too bad.
dragon_x
Well-known member
I will try to find It in Poland. Do You have original or diy adapter (db15 to Vga)?
Oberlehrer
Well-known member
I'm using a switchable third-party adapter.
dragon_x
Well-known member
What do You think about that monitor?
https://allegro.pl/oferta/nec-multisync-ea191m-pva-dvi-vga-audio-9646225709
NEC Multisync EA191M , its a bit higher model that yours.
dragon_x
Well-known member
What do You think about that monitor?
https://allegro.pl/oferta/nec-multisync-ea191m-pva-dvi-vga-audio-9646225709
NEC Multisync EA191M , its a bit higher model that yours.
Oberlehrer
Well-known member
I think the 191 is very similar to the 190. NEC had always good compatibility. So I guess it SHOULD work if the computer outputs a correct signal and the adapter is working.
dragon_x
Well-known member
I already have the LC at home What we have established: It makes a sound when it is started. After inserting a floppy, it tries to read it, and since I do not have a bootable floppy it ejects it after a while. I will try my hand at the db15-vga adapter, because there is no chance of getting the original one quickly. tomorrow I'll take pictures of the macintosh and upload it. I will also order the NEC EA191M monitor. There will be a keyboard to get but I'll wait until the computer is fully booted.
What we have established: It makes a sound when it is started. After inserting a floppy, it tries to read it, and since I do not have a bootable floppy it ejects it after a while. I will try my hand at the db15-vga adapter, because there is no chance of getting the original one quickly. tomorrow I'll take pictures of the macintosh and upload it. I will also order the NEC EA191M monitor. There will be a keyboard to get but I'll wait until the computer is fully booted.
dragon_x
Well-known member
Mac is already at my house. NEC EA191M monitor ordered. I will try when the monitor comes to build a DB15 to vga adapter. The housing is quite scratched. I found an offer to sell the case in much better condition but with rusty metal sheets after the battery ran out. If the mac comes alive, I intend to buy it and change the sheets. By the way, the housing has a rear cap and a speaker and fan housing, which I do not have.
The plans also include whitening the computer casing. If I manage to get the ram, I also want to expand the ram memory to 10 MB. currently it is 6MB. VRAM is probably 256KB. If so, I will be looking for 512KB of bone.
Such a renovation project promises to be.
Of course, there are also plans to replace the condensers. However, I have to find someone who will do it because I don't feel like soldering in smd.
Hope I can count on your help and advice?
Does it make sense to post a thread about the renovation of this computer?
The plans also include whitening the computer casing. If I manage to get the ram, I also want to expand the ram memory to 10 MB. currently it is 6MB. VRAM is probably 256KB. If so, I will be looking for 512KB of bone.
Such a renovation project promises to be.
Of course, there are also plans to replace the condensers. However, I have to find someone who will do it because I don't feel like soldering in smd.
Hope I can count on your help and advice?
Does it make sense to post a thread about the renovation of this computer?
Oberlehrer
Well-known member
I don't think I've seen such an LC "in the flesh" myself so far; the ones I've seen always had the (unused) cutout for a second floppy drive. So it seems Apple made a case revision at one point.
I'm only mentioning this since you talked about buying a second case which seems to be constructed different. Make sure that the parts are really compatible.
Other posters will probably know more about the different LC revisions.
I'm only mentioning this since you talked about buying a second case which seems to be constructed different. Make sure that the parts are really compatible.
Other posters will probably know more about the different LC revisions.
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