NEC MultiSync 3D NTSC/PAL?

[spaceman88]

I got this monitor when I bought 3 Amiga's a while ago. When I hooked it up to my MacBook it worked OK, but when I connected it to my A1200 (NTSC, 15kHz) the picture rolled very fast and wouldn't lock on. My first guess would be bad capacitors but before I spend too much time trying to fix it, does this monitor also support Amiga PAL modes? Model # is JC-1404 HMA.
Thanks

[Zac67]

The spec sheet states it goes from 50-90 Hz vertically, so it should work in NTSC and PAL both.

Have your tried a 31 kHz mode? What kind of sync does your cable/adapter support?

[spaceman88]

I didn't try 31 kHz with the A1200 (the MacBook is 31kHz). I'm using one of the old Commodore 23 pin to 15 pin adapters (390682-03)

The spec sheet states it goes from 50-90 Hz vertically, so it should work in NTSC and PAL both.

Have your tried a 31 kHz mode? What kind of sync does your cable/adapter support?

[Nostalgiac]

I used to own one of these way back - brilliant monitor for its time. But no, it does not display standard 15k signals. You need a scandoubler to use it on A500/A2000. About the A1200 and its 31k signal I'm not sure but basically (from memory) unless you can generate a proper 50 or 60Hz signal, the 3D wont pick it up.

[Matt_H]

BBoAH entry says it should support 15KHz.

[motrucker]

I used to own one of these way back - brilliant monitor for its time. But no, it does not display standard 15k signals. You need a scandoubler to use it on A500/A2000. About the A1200 and its 31k signal I'm not sure but basically (from memory) unless you can generate a proper 50 or 60Hz signal, the 3D wont pick it up.

I still have one in use, and it works fine at 15KHz! I never use PAL modes, so I can't speak to that - but looking at the specs, it should.
This is still a good choice for many Amiga models. I good technician can bring these back to life - usually...

[SACC-guy]

I didn't try 31 kHz with the A1200 (the MacBook is 31kHz). I'm using one of the old Commodore 23 pin to 15 pin adapters (390682-03)

@spaceman

the commodore adaptor you're using is for the toaster sync...
That's why it's rolling.

use the 390682-01 adaptor instead (without a toaster)

M

[Merc]

I can confirm that the 3d does display PAL modes fine, looks like SACC-guy found the real problem, but, just for the record :-)

[stefcep2]

I had one: it supports PAL 15khz no worries, but it scanlines are far more visible than on a 1084

[spaceman88]

@spaceman

the commodore adaptor you're using is for the toaster sync...
That's why it's rolling.

use the 390682-01 adaptor instead (without a toaster)

M

Hello,
I had two adapters and apparently I grabbed the wrong one! I tried the -01 and it worked fine in both NTSC and PAL. Thanks for the help. BTW if I use the -03 adapter on my A4000 Toaster setup will the NEC work? Is there a sync signal that comes from the toaster and ends up at the video port? Anyways, thanks for the info.
Len

[Zac67]

I had one: it supports PAL 15khz no worries, but it scanlines are far more visible than on a 1084

It's resolution is far better than the 1084's, resulting in thinner scan lines that show intermediate black lines. This is even more apparent on an EUM 1491.

[SACC-guy]

Hello,
I had two adapters and apparently I grabbed the wrong one! I tried the -01 and it worked fine in both NTSC and PAL. Thanks for the help. BTW if I use the -03 adapter on my A4000 Toaster setup will the NEC work? Is there a sync signal that comes from the toaster and ends up at the video port? Anyways, thanks for the info.
Len

@spaceman

Yes, the nec multisync with work with the toaster thru a 390682-03.
The toaster grabs the timing (or some such)
M