shmups.system11.org

Shmups Forum
 
* FAQ    * Search
 * Register  * Login 
It is currently Tue Oct 15, 2019 7:51 pm View unanswered posts
View active topics



Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: I need help with PS2 C-sync mod for VGA use.
PostPosted: Fri Jun 21, 2019 8:49 pm 



Joined: 21 Jun 2019
Posts: 1
Hey everyone,
I have been trying for a long time to find a way to hook up my Playstation 2 to my LCD monitor. I've used the LM1881 circuit but it didn't work due to the fact that it outputs c-sync instead of RGBHV. Then one day I found this thread (viewtopic.php?f=6&t=60996)that disables sync on green by removing Resistor 8299 (Slim model in my case) I have made a buffer circuit with vga output (https://imgur.com/a/StLKk0t). So my problem is that I have an SCPH-77004 Ps2 (GH-052-51 motherboard revision) and I cannot find any service manual online or any data sheet for the DAC but I found a pinout diagram for the CXM4015R in Bit built ps2 diagram (note that the H and V sync in this picture are inputs not outputs from DAC) (https://bitbuilt.net/images/guide_hub/c ... Bottom.png). What I want are the location of R8299 and H & V sync pads on my board here are some pictures of my motherboard
(https://imgur.com/a/wNKcg62)


Top
 Offline Profile  
 
 Post subject: Re: I need help with PS2 C-sync mod for VGA use.
PostPosted: Tue Jul 09, 2019 11:07 am 



Joined: 02 Jul 2019
Posts: 22
I my case I use GBS8200 hook with component cable and install gbs-control to improve picture quality. For best picture quality, I just modded my ps2 30006 model to output RGBs when in 480p mode that disable sync on green by this tutorial http://www.dansprojects.com/ps2sync.html.


Top
 Offline Profile  
 
 Post subject: Re: I need help with PS2 C-sync mod for VGA use.
PostPosted: Mon Jul 15, 2019 8:05 pm 


User avatar

Joined: 21 May 2013
Posts: 215
As far as i'm aware the CXM4000R and the later CXM4015R both have the same pinout, so if you check the earlier service manuals for any model from SCPH-39000 onwards you can see the DAC's pinout.

You should find that the sync outputs are on the following pins:-

Pin20=CSYNC
Pin21=VSYNC
Pin22=HSYNC

These are from the CXM4000R official pinout. Also note that some PS2 board revisions have test points on these pins you can easily solder to, whilst others will require you to solder to the actual pins themselves.

For the location of R8299 your probably going to have to trace pin79 (CSYNC input) backwards until you locate the resistor (If your really stuck you could always lift pin79 away from the board, although thats obviously riskier)

Hope that helps :)


Top
 Offline Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: Darkglobe1977, shmupsrocks, thchardcore and 13 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Space Pilot 3K template by Jakob Persson
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group