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A prominent modder will soon be releasing an solid RGB circuit (mod) for CD-i 400/500 series

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CD-i member 'Mobius Strip Technologies' is working on a new RGB mod for the Philips CD-i, focused on the video output of the CD-i 450 and 550 series. "Here's something you don't see everyday though. Working on a CD-i 450 and adding a proper RGB circuit. I will be sharing details for the brand new circuit after some more testing. New CD-i 450/550 RGB board layout is done. Once I verify prototypes are working the way I expect, I will share more details. Including how to make your own. I know the RGB side is solid, but I want to verify the new sync circuit is correct. I went ahead and made the page for the new CD-i 400/500 series RGB board public. Instructions are not done yet. But you can sign up to be notified instantly when I add stock. Feel free to ask questions. I will make updates to the page as needed. To avoid confusion. This board is still primarily aimed at 400 and 500 series CD-i. It will most likely work on other units, if they have the BT9106, BT9107, or BT9108 encoders. Also, price has been set at $30 plus shipping. First batch supply will be probably more than needed. Depending on interest levels, there may or may not be a batch 2."

Want to know the difference between my upcoming CD-i RGB board and the circuit readily available on the internet today? First picture is my board:



Second is the "internet circuit.":



Third is native CD-i 220 S-Video:




Description

The people have asked and we here at Mobius Strip Technologies have answered. The first RGB board made specifically for the Philips CD-i 400 and 500 series. This board is a completely custom circuit designed in house. It offers a proper 0.7Vpp RGB signal, 0.35Vpp 75ohm combined sync (CSYNC) signal, and a TTL CSYNC signal. Sync signals are built from the H-Sync and V-Sync signals directly from the video encoder to ensure proper timing. This sync signal is 100% compatible with the OSSC, as well as Sony PVM’s.



Frequently Asked Questions

Why choose this board over the “PC Engine amp-based” modification found online?
Sync signal is not using Composite Video which can cause noise and failure to sync on some devices.
RGB levels are a proper 0.7Vpp versus >1.0Vpp signals seen on the resistor modification RGB and 75ohm CSync signals are 100% safe for use with the OSSC and consumer grade devices. No risk of damage due to over-voltage. Built-in RGB Enable pad. No more soldering in a pull-up resistor.
Accurate color reproduction matching OEM output.

I don’t have a 400/500 series, will this still work?
Compatible with all Philips CD-i consoles with a BT9106, BT9107, or BT9108 encoder.

Does this work with HDRetrovision cables, RAD2X, Genesis/MegaDrive 2 SCART cables?
Yes. This board can be made to work with these cables. Simply remove and bridge the 75ohm resistors and 220uf capacitors on RGB lines. And use the TTL CSync pad for sync.

Can I use this on a PAL CD-i?

Absolutely. This board is compatible with both PAL and NTSC CD-i units. Please note this board does not modify refresh rates, enable switching refresh rates, or convert from 50hz to 60hz or vice versa.


Keep an eye on the following order page to get an update when the mod will be available:

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