The following information is taken from the CD32 FAQ
Q: Is there an RGB output on the CD32 to connect my multisync monitor?
A: There are easily accessable RGB signal test points on the CD32's circuit board. The diagram is at the end of the FAQ. The SX-1 and CD32x both have RGB connectors on them.
A: Peter Kittel wrote: If you have the French version of the CD32, you have RGB at the S-Video jack. In this case, this jack is no more of standard “Hosiden” type, but is a Mini-DIN with 8 pins. The four extra pins carry R,G,B, and CSync.
firstname.lastname@example.org wrote: Cables (maybe with extra logic) are being sold in France, which allow you to connect your CD32 to a 1084, presumably using that SCART-RGB output.
The RGB signals are available from a test port, TP9…
| | | <--- Kickstart ROM .-. Desc Equiv pin #s | | | |o| | | | |o| | `--' .----. <--- Akiko |o| | | | |o| HSync 159 | | | : <--- TP9 |o| VSync 160 | `----' : |o| Red 163 and 164 | .. :O.--. |o| Green 165 and 166 `-------'`----------' | |o| Blue 167 and 168 ^ ^ `------- |o| CSync 157 | | |o| Ground 161 and 162 Expansion port Pin 182 `-'
The RGB signals come from the D/A conversion unit and lead directly to the expansion port. These signals are, however, not amplified. In addition they are weakened by the S-Video output unit.
As a result I (aim to) insert a 47 Ohm resistor to each colour signal connection. You may also reduce the load by interrupting the signal supply to the S-Video unit. Set pin 174 of the expansion port to GND to achieve that (174 –> u36 (4066) signal switches).
The sync signals connected to the expansion port are unbuffered. As a result you may re-synchronize your Amiga by an external tact source. You schould at least buffer the CSync line; there is no external synchronisation possible on this pin.
Hint: make use of an XOR gate chip. You may negate certain sync line(s) to adapt your Amiga to (old? ) multiscan-monitors (the A4000 monitor adapter box will do the same; without the possibility of selected negation).
Written by Klaus Hegemann, posted as part of 'CD32 expansion port info' by Anders Stenkvist in comp.sys.amiga.hardware, forwarded by Michael King.