CD-i:Video Output Notes: Difference between revisions

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(Created page with "The CD-i outputs RF (via adapter), composite, and S-video. Some PAL units also output RGB via SCART on the back on the console. == RGB == For some units without a RGB SCART port on the back, you can mod them for RGB output. Most front-loading CDi systems use the Sony CXA1145 video chip and can be RGB-modded. Sync outputs as TTL sync, and therefore needs a 470 ohm resistor and 220uF capacitor on the sync line to be safe for consumer devices.")
 
(Expanded the topic as briefly as possible to cover most player models)
 
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The CD-i outputs RF (via adapter), composite, and S-video. Some PAL units also output RGB via SCART on the back on the console.  
CD-i players offer various video outputs depending on the model, version and revision<ref>http://www.icdia.co.uk/players/versions.html</ref>.
 
* RF (mainly on UK and US units, but also on early EU units). Later models (''Mono III'' and later mainboards) have a +5 V output next to the Composite output, to be used with an adapter.
* Composite video (all models)
* S-Video (mainly US and early EU/UK units). Later models (''Mono III'' and later mainboards) output either S-Video (+Composite) or RGB (+Composite). Both are not possible.
* RGB via SCART (all large stationary EU/UK models, e.g. '''CDI2xx''' and others, have native RGB output via SCART)
* RGB via DE-9, DE-15 or proprietary connectors (only on early portable, professional and authoring models, e.g., '''310'''/'''350'''/'''360''', '''18x''', '''60x''')


== RGB ==
== RGB ==
All stationary Philips/GoldStar/LG CD-i players that don't already have an RGB connector can be modified for RGB output.
There are two video encoder families<ref>https://retrostuff.org/2020/01/12/modifications-for-philips-cd-i-players/#Video-encoders</ref>, depending on the mainboard<ref>https://retrostuff.org/2020/01/12/modifications-for-philips-cd-i-players/#Mainboards</ref>:
=== Sony CXA1145P/M ===
(''Mono II'' and earlier mainboards)
You can either add the missing components on the mainboard to recreate the original Philips circuit (see service manuals<ref>http://www.icdia.co.uk/svcmanuals/index.html</ref> for parts) or tap the video encoder directly.
If you choose the latter option, keep in mind that CSync is output as TTL sync, and therefore requires a 470 Ω resistor and 220 µF capacitor on the sync line to be safe for consumer devices.
=== Brooktree BT9106 & BT9107 / BT9108 ===
(''Mono III'' and later mainboards)
You can either add the missing components to the mainboard to recreate the original Philips circuit<ref>https://retrostuff.org/2020/10/02/philips-cdi490-rgb-scart-modification/</ref> (does not apply to top loading players like the '''450'''), or tap the video encoder directly.
If you choose the latter option, use CD-i-RGB<ref>https://github.com/mobiusstriptech/CD-i-RGB</ref>.
Note that you will lose the S-Video output when you enable the RGB output.


For some units without a RGB SCART port on the back, you can mod them for RGB output. Most front-loading CDi systems use the Sony CXA1145 video chip and can be RGB-modded. Sync outputs as TTL sync, and therefore needs a 470 ohm resistor and 220uF capacitor on the sync line to be safe for consumer devices.
When you are done with the modification, check the EBU colour bars in the Service Shell and adjust the modification if necessary.

Latest revision as of 12:26, 5 September 2023

CD-i players offer various video outputs depending on the model, version and revision[1].

  • RF (mainly on UK and US units, but also on early EU units). Later models (Mono III and later mainboards) have a +5 V output next to the Composite output, to be used with an adapter.
  • Composite video (all models)
  • S-Video (mainly US and early EU/UK units). Later models (Mono III and later mainboards) output either S-Video (+Composite) or RGB (+Composite). Both are not possible.
  • RGB via SCART (all large stationary EU/UK models, e.g. CDI2xx and others, have native RGB output via SCART)
  • RGB via DE-9, DE-15 or proprietary connectors (only on early portable, professional and authoring models, e.g., 310/350/360, 18x, 60x)

RGB

All stationary Philips/GoldStar/LG CD-i players that don't already have an RGB connector can be modified for RGB output.

There are two video encoder families[2], depending on the mainboard[3]:

Sony CXA1145P/M

(Mono II and earlier mainboards)

You can either add the missing components on the mainboard to recreate the original Philips circuit (see service manuals[4] for parts) or tap the video encoder directly.

If you choose the latter option, keep in mind that CSync is output as TTL sync, and therefore requires a 470 Ω resistor and 220 µF capacitor on the sync line to be safe for consumer devices.

Brooktree BT9106 & BT9107 / BT9108

(Mono III and later mainboards)

You can either add the missing components to the mainboard to recreate the original Philips circuit[5] (does not apply to top loading players like the 450), or tap the video encoder directly.

If you choose the latter option, use CD-i-RGB[6].

Note that you will lose the S-Video output when you enable the RGB output.


When you are done with the modification, check the EBU colour bars in the Service Shell and adjust the modification if necessary.

  1. ↑ http://www.icdia.co.uk/players/versions.html
  2. ↑ https://retrostuff.org/2020/01/12/modifications-for-philips-cd-i-players/#Video-encoders
  3. ↑ https://retrostuff.org/2020/01/12/modifications-for-philips-cd-i-players/#Mainboards
  4. ↑ http://www.icdia.co.uk/svcmanuals/index.html
  5. ↑ https://retrostuff.org/2020/10/02/philips-cdi490-rgb-scart-modification/
  6. ↑ https://github.com/mobiusstriptech/CD-i-RGB
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