Yamaha CX5M - I want to add RGB/S-video

By rolins

Champion (418)

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09-09-2011, 04:44

I purchased a Yamaha CX5M (Canada version) and the composite video is very horrible. I open the unit up and the video is handled by a TMS9928A. Any chance this upgradeable to Sony CXA? I want RGB or at least s-video.

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By Manuel

Ascended (15753)

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09-09-2011, 10:01

The TMS9928A is the VDP... What is a Sony CXA?? Educate me, please Smile

By Jipe

Paragon (1366)

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09-09-2011, 12:57

the TMS9928A have a R-Y B-Y Y output signal and this model can drive a RGB encoder
for composite the VDP is a TMS9918A
search the Texas Instrument 9900 TMS9918A/TMS9928A/TMS9929A on PDF files for schematic

By msxholder

Champion (336)

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09-09-2011, 13:45

All you need is spare part NA551760 original Yamaha and then you have RGB output.

By rolins

Champion (418)

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10-09-2011, 07:00

The TMS9928A is the VDP... What is a Sony CXA?? Educate me, please Smile
The Sony CXA is RGB to S-video encoder. You see them in alot of older video game consoles. I brought it up because I could probably get broken playstation for peanuts and swipe its video encoder.

All you need is spare part NA551760 original Yamaha and then you have RGB output.
Does this part go by another name or something? Where can I buy this? I've tried google and can't find any info on it.

By msxholder

Champion (336)

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10-09-2011, 09:21

By rolins

Champion (418)

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11-09-2011, 08:02

here you can find it on page 19 for an rgb output
http://www.msxarchive.nl/pub/msx/docs/datasheets/hanso/service_manuals/yamahacx5myis503sm.pdf

Geez that looks really complicated. My soldering skills is okay at best, but I can't fully make sense of this schematic. I didn't major in electronics. Is there one for sale that's pre-built?

By switch

Rookie (27)

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11-09-2011, 19:56

Yes there is, I have one for sale. Let me know if you are interested.

By rolins

Champion (418)

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11-09-2011, 20:31

Yes there is, I have one for sale. Let me know if you are interested.

Yeah definitely. Here's my email: jimxk at yahoo dot com

Hit me up with a price. A picture of this NA551760 would be a plus too. Smile

By rolins

Champion (418)

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17-09-2011, 04:58

Yes there is, I have one for sale. Let me know if you are interested.

Hey Switch

I replied back to your email a couple days ago and have not heard from you. Not sure if it got lost in your spam box or something, but I wanted to ask if your price included shipping to USA. Thanks.