The CLIP-jumper should be closed if you have an ECS Denise.
The BYPASS-jumper can be attached to a switch to be able to choose if the flickerfixer shall "flickerfix" the image or send the standard video-signal through unaltered (to the DSUB-9). You wont be able to disable to original video-signal from the 23-pin RGB-port and there would be no point in doing so anyhow...
Pinout-conversion-table (this will look a bit wierd, when submitted) :
DB15-VGA: DB9-VGA: Signal-name:
1 1 Red
2 2 Green
3 3 Blue
4 - ID 2
5 9 NEC Self Test
6 6 Red Ground
7 7 Green Ground
8 8 Blue Ground
9 - -
10 9 Digital Ground
11 - ID 0
12 - ID 1
13 4 Horizontal Sync
14 5 Vertical Sync
15 - -
Computer shops usually can get you a adapter for this.
/Patrik