NEC TG-16/TE/TurboDuo > TG/PCE Repair/Mod Discussion

PAL turbografx NTSC mod

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thesteve:
ok remove PCZ80

jumper in clocks (jumper from pin6 to pins 15 and 22. jumper pin10 to pin11)
jumper in sync (pin16 of PCZ80 to pin40 of HuC6260)


system clock X201 change to 21.4772Mhz

color clock X202 change to 3.579545Mhz


and clip pin7 on the cxa1145 and tie it to 5V

thesteve:
note TC201 is the dot crawl adjustment

thesteve:

Necromancer:
A couple relevant questions and answers from the other thread:


--- Quote from: mickcris on March 22, 2015, 10:30:51 AM ---Couple of questions for thesteve:

1. where the pcz80 was, where is the white with blue stripe wire going to (possibly a picture missing)?  also is there something connected on the other side of the board to pins 17,18, and 19 as they are filled with solder?

2. can you use the same type of clock for the system as you used for the color clock?  the person in the tutorial I linked to earlier did so I would assume it would work, but dont know if they did something wrong.  if so, this seems like it would be easier as you wouldn't have to drill any holes or use a jumper wire.

thanks.

--- End quote ---


--- Quote from: thesteve on March 23, 2015, 05:59:27 PM ---i did all my jumpers topside for visability
striped wire on 15 runs to pin40 on the HuC6260
yes you could use a standard crystal for system clock, i just had the brick handy

--- End quote ---

schweaty:
i dont think this video embed is working and i've tried a half dozen things but here is some footage of thesteve's work in action:


the audio is terrible, but my bullshit doesnt add anything to the video

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