JAMMA RGB Splitter for AV3 input (THS7314-based)
- This topic has 0 replies, 1 voice, and was last updated May 11, 2018 at 1:13 AM by .
Viewing 1 post (of 1 total)
Viewing 1 post (of 1 total)
- You must be logged in to reply to this topic.
NewHome › Forums › OSSC, OSSC Pro and DExx-vd isl › OSSC – Discussion and support › JAMMA RGB Splitter for AV3 input (THS7314-based)
I did a simple JAMMA splitter, tapping the RGBS and ground lines. 220 ohm resistors on R, G and B. It came out looking perfect via the OSSC, and a bit dim on the arcade monitor. Not terrible, but I thought it might be able to be improved.
So, I added the standard THS7314 RGB amp. (http://retrorgb.com/n64rgb.html) 220 ohm resistors in, 220 ohm resistors out. Arcade monitor is now where it needs to be. Image through the amp/OSSC is too bright.
I added a 75 ohm resistor to the outputs (220 + 75 per output), and it seems to be better, but still too bright.
Then I went back and read the link above again, and see that it recommends adding resistors to the input of the image is too bright. So, I put it back to a 75 ohm resistor on the output, on RGB, and went to (2) 220 ohm resistors in series on the input. WAY to bright.
It seems adding resistance on the output is getting me to where I need to be, but I’d rather not be shotgunning indefinitely, and I only have a handful of values on hand. Is there a way to know exactly what the resistance value should be on RGB? (and for my own learning, please explain how to determine that).
Cookie | Duration | Description |
---|---|---|
_gat | 1 minute | This cookie is installed by Google Universal Analytics to restrain request rate and thus limit the collection of data on high traffic sites. |
Cookie | Duration | Description |
---|---|---|
__gads | 1 year 24 days | The __gads cookie, set by Google, is stored under DoubleClick domain and tracks the number of times users see an advert, measures the success of the campaign and calculates its revenue. This cookie can only be read from the domain they are set on and will not track any data while browsing through other sites. |
_ga | 2 years | The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. |
_gid | 1 day | Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. |
Cookie | Duration | Description |
---|---|---|
IDE | 1 year 24 days | Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile. |
test_cookie | 15 minutes | The test_cookie is set by doubleclick.net and is used to determine if the user's browser supports cookies. |
Cookie | Duration | Description |
---|---|---|
ct_checked_emails | session | No description |
ct_has_scrolled | session | No description |
ct_mouse_moved | session | No description |
ct_screen_info | session | No description |
wordpress_apbct_antibot | session | No description |
wp_woocommerce_session_9cc3598a6315be16da4f85bb374cf6a5 | 2 days | No description |