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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: icemanwol on September 15, 2006, 11:17:00 PM

Title: No video output w/ sync strainer
Post by: icemanwol on September 15, 2006, 11:17:00 PM
Recenetly picked up a video toaster 4000 from a local company, plug it in, turn it on, and there is no video output.  I can here the HD loading up the OS and everything but i see no video output.  The monitor is a Trinitron Multiscan 200sx that i know is good..  I tried removeing the expansion cards and just powering up with the Sync Strainer plugged in, but still no video output, is there  a jumper on the system board i have to move to get this comp to work?  THe NTSC/PAL jumper is set to NTSC.
Title: Re: No video output w/ sync strainer
Post by: pierre on September 15, 2006, 11:31:34 PM
not sure that monitor will sync to 15hrz....  Youoneed to set the vid mode to productivity first (31hrz).

have you used this monitor with other amigas?
Title: Re: No video output w/ sync strainer
Post by: icemanwol on September 16, 2006, 12:34:45 AM
No, never used this monitor w/ an amiga before, How do i chane the video mode for 31 hrz if i do not have a monitor that works w/ the amiga?  Also, can i somehow hookup the video toaster to a TV to get a video out to the tv and use that as the monitor?  There where a few BNC to RCA converters in the box
Title: Re: No video output w/ sync strainer
Post by: pierre on September 16, 2006, 01:30:26 AM
you can't...  you need a realy amiga monitor... you will need an extra screen (or two) for the toaster anyway.  I suggest you get an old 108x off ebay.  
BTW why kind of sync straner are you using?
The only kind the I hear work are the "prevue" ones.  But even  then the sync strainer is not what you want (won't get rig of flicker and won't workj with most monitors...), you need a toasterscan SCANDOUBLER, wich is impossible to find as they dont make them anymore. the internal DCE scandoubler is cool and $$$ but it WONT work with the toaster anyway..
yeah.....
have you ever ownd and amiga?  They are totaly unusual..

I forgot you can also get a 520 wich converst the monitor out put for your tv and then use a regular tv... the 520 are around on ebay for cheap... ($5 -$10) .  get ready for a very flickery experience....
stick with it, the amiga is a very cool machine once you get it tricked out, but it's not EASY.

Title: Re: No video output w/ sync strainer
Post by: Amiga4k on September 16, 2006, 03:31:36 AM
(1) 200sx is 30kHz, so you need a 15kHz to see anything.
(2) SynStrainer info from the Big Book of Amiga Hardware:
•   allows the use of multisync monitors while the Amiga is in genlock mode
•   in genlock mode the horizontal and vertical sync signals are set to 7.8 kHz on the Amiga video port - these signals are not used by single scan monitors, but are required for multiscan monitors
•   when the Sync Strainer senses a genlock condition (as when the Video Toaster is started), it creates new H- and V-sync's from Composite sync
•   acts as a simple buffer for H- and V-sync when the Amiga puts out 15.7 kHz or 31.4 kHz horizontal scan rate
•   automatically switches between the various scan modes
•   a 2" × 3" × 1/2" module which connects to the 23 pin RGB connector
•   available with DB9 or DB15 VGA output connectors
•   works with any genlock which does not use the 23 pin RGB port
•   the Sync Strainer is not a scandoubler, the analog RGB signal is passed through unchanged

Nice to see some more questions, even if it is from a 2nd poster.
Title: Re: No video output w/ sync strainer
Post by: CLS2086 on September 16, 2006, 09:20:51 AM
Just test with your tv