Amiga to GB-8200/8220 through RGBHV?

[djkoelkast]

I had to have a cable lying around that I never used. It was DB23 to DB9. Took it apart and hooked it onto the GB-8200 converter with R G B, Composite Sync and GND.
Problem was: white speckles all over the place when there was a black screen, losing sync every now and then, resulting in shaking image.
So I tried something else: hooking up the Amiga through the RGBHV (VGA port) port of th GB-8200. Redid the cable R / G / B / HSync / VSync / GND, but it doesn't work, the Amiga doesn't even boot, so clearly there's something wrong.
Any hints on this?

I've used pins 3, 4, 5, 11, 12 and GND 16, 17 & 18
On the VGA side I've used pins 1, 2, 3, 13 & 14 + GND.

[amiman99]

It doesn't work, the VGA input is only 31khz. See the spec page.

Input signal  

CGA/EGA

  14.5kHz - 16.5kHz
23.5kHz - 25.5kHz
30.5kHz - 32.5kHz  

Auto scan

  P3 or P11 or P10    

RGBHV

  30.5kHz - 32.5kHz  

Auto scan

  P10 or P11    

VGA

  30.5kHz - 32.5kHz  

Auto scan

  P10 or P11    

Ypbpr

  480p,576p,720p,1080p  

Auto scan

  P2    

Ycbcr

  480i,576i,720i,1080i  

Auto scan

  P2

edit: copy/paste didn't work to well.

[djkoelkast]

Too bad, mine came without any instructions or spec sheet, so I didn't know.
Isn't there a way to use HSync & VSync for a better sync on this thing through the RGBS port?
Or should I just put HSync in stead of Composite Sync to the connector? The connector that was supplied with the board had some pins not connected, GND(2) and VSync have no cable attached to them. Others do. RGBS has the HSync, which was connected to the Composite Sync of the Amiga (according to a pinout I found online).
So would connecting HSync in stead be a better option?

[amiman99]

I used these settings and pin outs below with good results:

HPOS 56
VPOS 16
HSIZE 48
VSIZE 55
CLAMP ST 97
CLAMP SD 00

or

HPOS 50
VPOS 14
HSIZE 50
VSIZE 56
CLAMP ST 97
CLAMP SD 00


These settings work in
PAL and NTSC.
Good luck.

The converter is labeled pretty good
All pins are on Amiga side:

PIN 3 RED
PIN 4 GREEN
PIN 5 BLUE
PIN 10 CSYNC
PIN 19 GND

Edit: one more thing, if things don't work, press the "Auto" button, to find the signal.

[djkoelkast]

It did work, but I had horrible sync and even worse white specks in the image when black. I'll try this tonight, thanks!