Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.



280 posts

Ultimate Geek


Topic # 109178 14-Sep-2012 12:46 Send private message

Hi all,

I was going to throw out my Sega Master System II today, but remembered there is an RCA mod you can do to it, and  though I would give it a go..

I've found a few guides, but they all use a drawing rather than photos..

ie; http://hackitup.tumblr.com/post/548848692/sms2videoaudiomods

I find those type of guides hard to follow, as I don't know if that is the bottom of the board, or the top of the board..

Does anyone know of any guides like this one (different chip): http://www.youtube.com/watch?v=pJxBgH-zBVQ

My chip is the Sony CXA1145P.

Would be cool to try this out if its not too hard.





Create new topic
654 posts

Ultimate Geek
+1 received by user: 20

Trusted

  Reply # 685974 14-Sep-2012 12:53

That diagram should be all you need.  The text says the chip is near the top of the board - should be close to the video output.

The alignment of the chip (and hence the pin numbering) is determined by the notch on one side.

Edit: Here's a picture of the PAL board - the chip is in hte middle, and the pins clearly labelled on the PCB:

http://www.smspower.org/uploads/Development/PALMasterSystemIIICBDM4JrPAL-Component.jpg

654 posts

Ultimate Geek
+1 received by user: 20

Trusted

  Reply # 685978 14-Sep-2012 13:04




280 posts

Ultimate Geek


  Reply # 686050 14-Sep-2012 14:59 Send private message

Thanks mate.

That guide above looks very useful, I will have to check it out. I went out and bought 1x 75Ohm Resistor (but I didn't know what wattage to get lol) and 1x 220uF capacitor.

Hoping to try it out today.. not sure what will 'blow' if i do it wrong.. either the whole Sega unit, or just the resister/capacitor.






280 posts

Ultimate Geek


  Reply # 686087 14-Sep-2012 16:46 Send private message

Hey thanks again for that video guide, it was perfect!

Just finished it now, and I didn't screw it up! just as well you posted that video too, because the guide I found had the audio output completely different!

My local JayCar didn't have a white RCA port, so I had to use black.





Watchmaker Wizard
2395 posts

Uber Geek
+1 received by user: 56

Subscriber

  Reply # 698432 9-Oct-2012 14:32 Send private message

Very tidy job!

I did a vaguely similar mod on an old Xbox to add an RCA digital audio output and it was a pig of a job.






280 posts

Ultimate Geek


  Reply # 698656 9-Oct-2012 19:23 Send private message

I did the 50/60 Hz mod too:



and the LED Powerlight mod:







Create new topic




Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:




News »

Trending now »
Hot discussions in our forums right now:

2 x PS4s to give away. Geekzone members only.
Created by BigPipeNZ, last reply by jurax04 on 29-Jul-2014 23:10 (54 replies)
Pages... 2 3 4


Logitech K400r HTPC Cordless Keyboard Half Price
Created by Dynamic, last reply by Blanch on 28-Jul-2014 22:16 (25 replies)
Pages... 2


VF, why you lie to me?
Created by kenkeniff, last reply by kenkeniff on 29-Jul-2014 14:35 (46 replies)
Pages... 2 3 4


2010 Honda Jazz, Suzuki Swift - which has higher maintenance cost?
Created by joker97, last reply by jonathan18 on 30-Jul-2014 09:26 (63 replies)
Pages... 3 4 5


Dick Smith in Continual Sale Mode
Created by Dynamic, last reply by eXDee on 29-Jul-2014 19:23 (65 replies)
Pages... 3 4 5


Checking UHF aerial is working
Created by OnceBitten, last reply by B1GGLZ on 28-Jul-2014 21:49 (21 replies)
Pages... 2


Hierarchy of a mistake: Gerry Brownlee
Created by joker97, last reply by DonGould on 29-Jul-2014 21:57 (93 replies)
Pages... 5 6 7


Is chorus going to deliberately slow adsl internet down
Created by rugrat, last reply by juha on 26-Jul-2014 14:25 (54 replies)
Pages... 2 3 4



Geekzone Live »
Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.