Turbografx 16 chip swap repair! Learn how to safely replace surface mount chips!

[@nastybedazzler]

I love these videos dude thanks for making them. It's crazy that watching someone mod and solder stuff on KZbin can be so entertaining to me, yet here we are lol.

[@LIRetroGaming]

Thanks I really appreciate that! It’s good to hear that this stuff is entertaining and I also hope that it helps people out

[@jameslangridge8849]

I love it when a plan comes together 😄

[@seanm1738]

100% agree with keeping broken hardware. Having donor parts can be invaluable if you're in to repair. The sum of the parts is greater than the whole with old consoles.

[@TheSocialGamer]

You are a legend, I appreciate your uploads.

[@ChrisTheMeat]

love the laugh once it boots George

[@PMCRetroGamer]

Another fantastic video as usual. Love your content. Been following your channel for past 6 months. Glad i did. Brilliant fix

[@LIRetroGaming]

Thanks so much! I’m glad that you have enjoyed the content and I hope that it has been helpful as well!

[@emmettturner9452]

I use a ceramic drink coaster when I need to solder something loose like that. I even used it to clean up ChipQuik many times. ;) I like to flood the legs with solder and remove it all a few times without reusing braid in order to get more of the contamination off. You really don’t want and ChipQuik to still be on there. Actually, I reuse the each piece of braid on the board pads and flood those too then use a fresh piece on both when finishing up.

[@BoomBeench]

Should be noted that chip quick will destroy the chemistry of lead-free solder, do they shouldn't be used together.

[@LIRetroGaming]

That’s definitely a technique that I would like to see!

[@turbochamp7885]

Great use of the everdrive. That damn RF shield!

[@emmettturner9452]

I’ve got a TG-16 with a bad graphics chip. Confirmed it by swapping with known good chips.

[@emmettturner9452]

Most games show a black screen but some show black and white graphics. Blazing Lazers can loop through multiple demo sequences on a black screen before one in particular shows a few white sprites… including your ship, which wasn’t visible in any of the other demo loops. That means it is related to color pallets or something.

[@fenikso]

Thanks for this video. I've got a Turbo that is showing nothing but a white screen. I've cleaned the cart connecter and re-capped the board and it still shows a blank white screen, so at least I know it's something beyond my current ability to repair. The only annoyance is that I should have re-capped my other, working, Turbo instead, since I have a TurboNanza coming to me in the mail soon that I want to install asap.

[@LIRetroGaming]

Yeah this one most likely has bad ram

[@fenikso]

@@LIRetroGaming My console showing only white screen is a sign of bad RAM? I thought that it was going to be one of the Hu chips. Is the RAM an off the shelf part, or is it another proprietary chip (or maybe just hard to find)?

[@kibagami25]

great video as always thanks again.

[@johntorn]

Literally gasped when you showed the crack in the other board

[@emmettturner9452]

Surprised me! I was expecting some junk PC Engine hardware but now that I think about it I also have a junk TG16 in my pile of Turbos (bad graphics chip). Just waiting on a chip donor that doesn’t deserve a donor of its own. ;)

[@thepthepthep]

BTW the 6270 is the video display controller (VDC), not the CPU (which is the 6280).

[@LIRetroGaming]

Yeah I realized that after the fact. Sometimes I make mistakes like that because I’m not speaking off of a script

[@pdoherty926]

How advanced is this operation? Should someone who's barely able to cleanly solder two wires together or a pin into a board attempt this?

[@LIRetroGaming]

This is definitely more advanced. I would suggest getting comfortable with soldering first before trying something like this

[@amaiorano]

Nice job! How did you know it was that chip that needed replacing?

[@LIRetroGaming]

It was a little bit of a guess. I saw the behavior that the everdrive was doing where it would keep boot looping, and I suspected that it was either the CPU or the ram

[@amaiorano]

@@LIRetroGaming ah okay. I was wondering if there was a way to validate that the CPU isn't working by using an oscilloscope, like seeing if it's outputting data or address values.

[@J.Crooner]

Hey bud I got a question. I have a Neo Geo AES cartridge Alpha Mission 2 that is displaying garbled graphics. It's not the contacts and not the system. Through further investigation I opened the cart and found two sets of bridged contacts on two separate chips. I was wondering if this is the reason for why I'm getting graphical glitches in the game? The funny thing is the only screen that shows up clear with no issues at all is the weapon armor select screen which works totally fine. Everything else is graphically glitched. If you have any other suggestions or ideas feel free to share, I'd appreciate it thanks.👍😎👌

[@LIRetroGaming]

Unfortunately I’m not really sure. I don’t have too much experience with repairing those carts

[@J.Crooner]

@@LIRetroGaming Oh ok no problem at all I figured I'd ask since you've done such a fantastic job with the tg16. I appreciate you letting me know anyway bud thanks.👍😁😎👌

[@joshman196]

Is it possible that the old chip just needed a reflow instead of being replaced entirely?

[@LIRetroGaming]

I don’t believe so. I inspected the chip and the connections between the pins and motherboard were solid

[@PabloAvilaEstevez]

I had a baby blue screen on boot up after I did a jailbar capacitor fix on my pc engine, it was working before so I was confused as to what happened. Much later on, I reflowed solder on the pins for the hu card slot and I crossed my fingers, and somehow that worked for me

[@LIRetroGaming]

Nice! Glad you figured out what it was and got it working again

[@turbinegraphics16]

I ruined a chip on a pc engine by doing an rgb mod, it still works but the blue colour won't work on rgb, I believe it was something to do with a ground loop because the monitor was still plugged in and I touched up a loose connection.

[@hualni]

If you're going to attempt to drag solder, use a knife tip.

[@BoomBeench]

Bevel tip is better :p

[@Chris-Courage]

I love chip quick but it's just so expensive.

[@LIRetroGaming]

It’s a little pricey that’s true, but really the only good option if you have to remove surface mount chips. I don’t use it for any other applications so I don’t need to buy it regularly

[@Nic03444]

Chipquik roxx