CXM-4000 and CXM-4015 info help

**RARusk** · 03-26-2006,02:00 AM

Some time ago I did this page for the GamesX Wiki site concerning how to obtain RGB video and sync signals off of some PS2 motherboards.

I am wondering if anybody has some detailed information on the CXM-4000 and CXM-4015 DAC chips that are on the SCPH-50000 and SCPH-70000 units respectively. I want to know if anybody has found a way to turn off Sync-On-Green, Component Video Forceback, and MacroVision on these DAC chips (as well as find stable sync off of the 50000 board).

I would like to try to hack up my 50000 unit for better RGB and to improve my page at the GamesX Wiki site.

**l_oliveira** · 03-26-2006,09:16 AM

Man ... There is no pin on it to disable the SoG. That I can say for sure. There's also no RAMDAC inside the newer GS chips so there's no analog RGB on the mobo, exeption being the RGB which the CXM chip outputs.
I suppose the SOG on/off switch is now probably controlled by software. (there's a I2C bus on the CXM chip which is connected to the HDD interface chip, the CXD9611 on the GH-023 mobo. On the GH-026 mobo the HDD chip and sound chip merged into one bigger chip.)

PM me if you want more details

**Fisher** · 09-08-2011,08:21 PM

Hi.
Sorry to bring this thread back from the grave but...
I need some more info about these encoder chips
Does it have some way to make them output pal-m video??
It seems to be just some matter of frequency adjustment.
I remember making a small oscilator circuit to do the job back with ps1.

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