help! SONY BRC-300/300P installation

[jusalgt2 0]

I need help:

 

I just bought Brc-300/300P with Brbk-301 analog RGB Component card. I have a problem in connecting this to a big display led screen. I want to use RGB.

Here is the (D-sub 9 pin) configuration:

1. Rgb ground

2. Rgb ground

3. R

4. G

5. B

6. Composite/ Y

7. Sync

8. Sync Ground

9. No connection

 

I am confused where to connect Horizontal and Vertical sync.