RedskullDC 18:04 01 June 2011
The adapter boards arrived today.
(Seller on Ebay appears a bit shonky, but my stuff arrived pretty quickly. Use Paypal to cover yourself in case!).
They came with no instruction manual , but it wasn't too difficult to find one online: http://info-coach.fr/atari/hardware/video/GBS-8200.pdf
Wired up the Red, Green, Blue, HSync, VSync, Gnd signals to the 8 pin plug supplied (P11), after carefully moving the Gray HSYNC wire to the correct place on the connector. Mine came with the grey wire connected to the composite sync pin.
Plugged it into my small Phillips test monitor, and got the dreaded "pink flickering that Calgor mentioned in a post above.
Then I disconnected the HSYNC and VSYNC lines, and just tried using the composite SYNC line from the Amiga RGB port to the composite SYNC line on the 8-pin P11 plug. Fired it back up, success!!
Couple of pics attached to show the unit in operation attached to the 1200.One in PAL HIRES, the other in PAL SUPER-HIRES LACED.
The LACED modes are de-interlaced when displayed.
Yes, it does happily sync up to both NTSC(60Hz) and PAL(50Hz) signals!
When switching modes from PAL <> NTSC, the unit did get "lost". A quick push of the 'auto' button brought it back in sync.
The PAL modes required a minimum of 800x600 output from the unit, whereas the NTSC modes would work ok on 640x480 output.
The higher resolution modes required a correspondingly higher output mode. Some playing around may be required to establish the best screenmode/output mode combinations.
The quality on screen is very good actually, the pics I have attached don't really do it justice. (ignore the herringbone patterns for example, just an artifact of the crappy monitor/campera combo...
Desantii's photos above look far better than mine
I haven't noticed any of the lost sync problems that Desantii mentioned, though I haven't run it for any length of time. The chip with the heatsink attached did get a little warm, so it may be heat related. A small fan may be the go.
All in all, a very cheap solution which provides a good quality output.
Attached: IMG_0517.jpg (295.7 KB) IMG_0521.jpg (384.1 KB) IMG_0518.jpg (262.0 KB)
Dal wrote:I get mine from here
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