Sega Saturn Repair Part 1

Sega Saturn Repair Part 1

A short video covering the repair of a Sega Saturn. Described as ‘spares or repairs’ I had no idea what to expect.

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Scott X68000 says:

I installed a Switchless region mod in my sega saturn and now I just get a black screen, disc wont spin or anything. Any idea what might cause this? I followed the instructions to a tee, the correct traces were cut, all solder joints have been double checked so not sure what could have gone wrong?

aassd dff says:

Can you please help me? The console is VA 0.8 USA. I power the console and I can set the language, but the selection box is not present. After that I can set the clock. After this I get the "saturn" white text, but the big blue saturn logo is missing. Followed by a black screen.
I can boot the pseudo saturn from the cart slot, but it just hangs when starting the cd.
I made a cart with the saturn test menu (https://hiddenpalace.org/Sega_Saturn_Test_Menu_v1.0f). But i just get black screen after "licensed by sega".
I removed the bios and I installed a region free one. No differences.
I replaced the working ram at IC3 and IC4 without any difference.
I replaced the working ram at IC31 and IC32 and no difference.
If the ram at IC32 is removed, the console acts the same. And yes, this ram has all the connections to IC6 ok.
I've also checked all the connections on ECABUS and ECDBUS.
The board doesn't have signs of corrosion.

Hamid Metref says:

I have a Sega Saturn board VA0 like yours and I get no video output. My TV detect a signal but black screen. The CD is spinning normally. Any idea what could be wrong ?capacitors?
My AV cable is fine as I I tested it with another console.

alex diamond says:

man i dont see in wat points you put the av aut i dot anderstend haw

Michael Arone says:

Ι just bought from a friend of mine a model 2 pal saturn but I have an issue. It power's up just fine its reading discs also the problem is that it presses buttons by itself. It presses up, left, start for sure and it might presses x, y, z. It's not a controller issue because I ve got 2 and both works just fine with my other saturn also it does that even without controller plugged in at the console port. When I turn it on (with old battery) it goes at date and time menu but it starts changing the time by itself I press right and A button I go to exit and then if I ve got cd inside it starts loading, I press start from controller and the game starts just fine BUT the problem with pressing buttons still remains.
I tear down the console Ive cleaned it properly and I ve checked the capacitors (with my eyes cause I don't have esr tester) from motherboard for leacks or if someone is ready to blow and it seams to be fine. I also replace the battery with a new one but I have to mention the fact that the previous owner had the console stored for 4-5 years and when he try to turn it on he started the console without battery at all for about 3-4 times (I dont know if this has anything to do with the problem but I just mention it for the record). Any ideas anyone?

Roger says:

Hi, then. Can you give a hand, pls? I've got a Skeleton model Saturn, I've just changed the laser board and lens, and its working very well while the console is open. When I close everything the disc just wont spin. Opened console works, closed dont. Can you imagine why? Thanks a lot

LazyJackal says:

Just subscribed. Your Dreamcast teardown got me to Purchase a Dreamcast. I paid $31 USD total for a working unit with cables, controller, and VMU. Now i went and impulse bought an untested Saturn without AV cable, come to see if you did a teardown of one and it looks like we were in the same boat XD. Cheers man.

steve5123456789 says:

I fried my japanese sega saturn with a UK power plug whats the quickest fix?

RetroGameModz says:

8:17  I was first going to comment and say "What kind of muppet replaces a fuse with a jumper wire??", but I'm not that sure anymore that it's not factory standard. It's difficult to estimate the thickness of the jumper link from that camera distance, but such a jumper could act as a fuse given the dimensions are exactly calculated and/or tested. Or, the designers might have decided to skip the fuse to cut costs and just go for a jumper link instead. The reason I'm suspecting that it might not be an ugly user fix is that the soldering looks pretty decent, and I would suspect that someone who makes such a stupid decision as to replace a fuse with a jumper wire is probably not very skilled at soldering either. Also, I don't see any silk screen markings for the fuse. It only says "fuse", and there is no symbol for it where the fuse should go, as there are for the other components. When populating with actual components, it's common to designate each given component a certain number. So even if there were only one fuse on the board in the form of a real component, it would make more sense to call it "F1" instead of just "FUSE"… hence my suspicion the jumper link is mounted like that in factory.

Major Orkybork says:

My Saturn as been acting really odd with displaying the game's graphics
There are times where the game doesn't load at all, the graphics are glitchy or some graphics are missing.
you did mention around 9:00 that the 315 5688 and 315 5690 chips are for displaying the graphics. Is there a possibility to change those chips?

craig gilchrist says:

Hey buddy, what 2 pin holes are you using out of the A/V connecter. I have a Saturn but no cable. I know there only a couple of quid but seeing you do that i can just make one to play a quick couple of games on. Cheers.

Yakuza Games says:

Looks good so far! If the disc doesnt spin or it says the drive is empty, make sure that the metal pin the door moves when it closes is making contact in the closed position.

lactobacillusprime says:

Wow – looking forward to the next bit. 

StuRoRo says:

I may have an old Saturn pad I'm not using if you want it. I got it with my import Saturn. I don't know if it even works.

Beaps73 says:

I pm'ed you regarding Speccy 48k ram chips, did you get it? Also have you seen this, EBay item 281138097707 no, read what it does it sounds interesting

Beaps73 says:

Looks like a simple fix so far. Just hope the laser isn't shot. I gotta black Nights analogue controller for sale if your interested.

RallyDon82 says:

i knew earlly japanese saturns had the different psu mounted to the top of the shell but i have never seen or knew they made them in the western model, interesting.

tenderstems says:

You wouldn't happen to know the size of the screws that hold the case together would you?  I picked a Saturn up that had no case screws.  Works fine though!

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