Tekken Tag Tournament / Namco System 12 - Recap, Repair, Restore

[SmokeMonster]

Following my other Namco System 11 & 12 Tekken PCB restorations (Tekken 2, Tekken 3), here is my Tekken Tag Tournament (PCB Ver A3) project. I washed the PCB, fixed the hanging SMD cap/lifted trace on the top board, and fully recapped it with long-life 105C rated electrolytics. I also added a CR2032 coin cell to it, and applied Arctic Silver ceramic thermal paste to the two heat sinks. It works perfectly now.

Namco System 11/12 boards have notoriously horrible SMD component soldering (I've documented this here and here), so if you see them listed as "broken" or with dim video or missing audio, scan over the seller's pictures and see if you can spot missing SMD components. If so, they're usually dirt cheap and extremely easy to fix. After recapping them though, sys-12 boards are beautiful and have held up pretty well with time, despite what you might think by watching videos. The gameplay experience is just as you remembered

Before

After

 

[chinitosoccer]

Hi, I'm having problems with a Fighting Layer PCB, same symptoms as this guy here: Tekken Tag / Namco System 12, boot loop watchdog

Do you think a recap may fixt it?

 

[nem]

As per Mr T Guru's post in that thread:

a blue screen with a weird white Japanese character in the middle of the screen means the CPU (on the top board) can't see the program or the program is bad. Mainly it's a bad connection somewhere between program ROMs and CPU, but it can be a bad TSOP.

You could try reseating the boards.

 

[chinitosoccer]

Then the program is bad or a TSOP is dead (what's a TSOP?) because I already reseated the top boards like 100 times while inspecting/testing it.

 

[kimbopman]

I am currently trying to fix a dead (no video/audio) Tekken Tag board. I tried swapping the cpu board with a working one from Tekken 3 but no change. I wonder if the battery needs to be removed before it will accept a different cpu board. I will try recapping the Tag board.

 

[CristianLM]

Hi, I'm having problems with a Fighting Layer PCB, same symptoms as this guy here: Tekken Tag / Namco System 12, boot loop watchdog

Do you think a recap may fixt it?

this error I have generated when I have errors in the IC 2S, it is easy to fix when programming it.

 

[chinitosoccer]

this error I have generated when I have errors in the IC 2S, it is easy to fix when programming it.

How? you have any reprogrammed 2S for sell??

 

[corruptedexe]

have you guys come across any tekken tags that have video sync issues

 

[RealMFnG]

have you guys come across any tekken tags that have video sync issues

Video sync almost always points to a cut trace. Meter out from your sync pin to find the culprit.

 

[AlexandreHernan55]

Hello friend, greetings, a question, I have a Tekken tag plate on board A (Video of the game) component number: C11, I did not realize that the component was not in its place, it was completely empty when I turned it on, it does not turn on, this has Has my plate already been damaged? Or will simply replacing the component fix it?

Following my other Namco System 11 & 12 Tekken PCB restorations (Tekken 2, Tekken 3), here is my Tekken Tag Tournament (PCB Ver A3) project. I washed the PCB, fixed the hanging SMD cap/lifted trace on the top board, and fully recapped it with long-life 105C rated electrolytics. I also added a CR2032 coin cell to it, and applied Arctic Silver ceramic thermal paste to the two heat sinks. It works perfectly now.

Namco System 11/12 boards have notoriously horrible SMD component soldering (I've documented this here and here), so if you see them listed as "broken" or with dim video or missing audio, scan over the seller's pictures and see if you can spot missing SMD components. If so, they're usually dirt cheap and extremely easy to fix. After recapping them though, sys-12 boards are beautiful and have held up pretty well with time, despite what you might think by watching videos. The gameplay experience is just as you remembered

Before

After

Question: Can I use the same component that you used in the photos above?

 

[skate323k137]

Trying to fix a Mr. Driller with white screen output. Details here, but I suspect video RAM at this point... would love any input.

https://forums.arcade-museum.com/th...e-screen-troubleshooting.532229/#post-4772423

 

[skate323k137]

It wants to live!!! Sometimes part of the screen will show.

I think this is indicative of VRAM issues, 3.3v looks great measured at them. I'll get out the scope later to poke around.

 

[snake390]

this error I have generated when I have errors in the IC 2S, it is easy to fix when programming it.

hi @CristianLM Sorry, I saw that you mentioned that programming the 2s chip again will fix this problem. I have the same problem. Could you tell us more since I have validated the game roms and the 2s chip does not appear in the roms?