PS spot in referencing is on the “C141” area

⟐ Commented March 02, 2026 at 19:40 MST

Then it worked for about 30 mins and did the same.

So I took it apart and did a bit of a deeper clean on the game cart slot and now I get no video AT ALL. It’s not even trying to.

⟐ Answer unaccepted January 12, 2026 at 18:38 MST

any help will be appreciated thank you.

⟐ Answered January 06, 2026 at 12:29 MST

⟐ Answer accepted October 23, 2025 at 16:51 MST

When I first received the console, I disassembled and cleaned it. It worked fine.

Video quality was not great, so I replaced all electrolytic capacitors. The console still worked and I could play games.

After final reassembly in it's case, it started showing “No Signal.”

What I did so far:

Disassembled again, this time also removing heatsinks.

Cleaned everything again: card slot, AV cable, jumper pack contacts (even with 800-grit sandpaper).

Reflowed electrolytic capacitors and main chips: CPU, RCP, PIF, DENC, and jumper pack connector pins.

Tested various points with oscilloscope (I can share waveforms if needed).

Swapped my Expansion Pak with a new Jumper Pak.

Replaced power supply.

AV cable is brand new, so I don't think this is the cause.

Tried inserting/removing cartridge and jumper pack while powered on (as suggested in some threads).

At this point the console still gives no video output at all.

Any advice on what I should check next?

⟐ Commented September 30, 2025 at 1:37 MST

⟐ Answered September 26, 2025 at 7:53 MST

Another issue is, I think there is something wrong with the shell. Game cartridges have a very tight fit going into the slot. Even if I took off the plastic piece inside and the 2 opening doors and just had the opening for the cartridge, it goes in super tight. You have to even pull the cartridge out with a lot of force. The console is a US model and the games are US games, so I know it's not a Japan thing.

Could it be the plastic might have warped? It looks normal. I never came across an issue like this. Another issue is the power button, sometimes when turning it off, the power stays on. I have to slide the power button up then back down to get it to finally turn off. Doesn't happen all the time. I took the console apart and took the button out and cleaned it and cleaned the console part where the button slides into. I also cleaned around the button itself. Still, same issue. Not constant, it randomly does this. Never seen issues like this with a N64.

Even the memory pack cover does not fit properly. It wont clip in and stay attached to the console. I had a spare one from another console and that too has the same issue. Very weird. It is just a basic N64 console. I dont see any mods or anything like that.

⟐ Answer accepted August 20, 2025 at 7:55 MST

⟐ Answer edited August 03, 2025 at 22:08 MST

⟐ Answer edited May 13, 2025 at 23:57 MST

I managed to damage it i think so how and too see if there is a fix or just throw it out

I've tried different cables including an old SNES cable (that worked some years ago) and a GameCube s-video cable.

I have a fairly new TV, but I'm certain I've configured it correctly. My SNES works just fine on it.

Any help would be appreciated!

It works! I've tried:

• Removing the Expansion Pack (original) and putting it back in.
• To blow on the cartridge and on the machine (not recommended).
• Different games.
• Different AV cables (that work on my SNES).
• Cleaning the connectors on a cartridge with both dry Q-tips and with isopropyl alcohol.

When I started the machine I didn't see or hear anything. The screen didn't even flicker. I retried the steps some time later and magically it worked. I've listed all the solutions I've tried, as I don't know which one solved my problem.

Thanks for all the help!

⟐ Commented February 23, 2025 at 10:08 MST

⟐ Commented February 17, 2025 at 2:28 MST

One of my most prized possessions started acting up this week. My nintendo 64 has started to shut off on its own not long after I start playing games. I have removed a few of the possible problems with a few different tests. It is not a TV issue as this problem happened on 2 different tvs. I do not use an adapter to switch between several A/V devices. I am plugged right into the TV.

It is not a specific game as this happens with all games. I gave my system the basic cleaning with compressed air which helped nothing. Here is where things get interesting. When the system "shuts off" I lose all sound and the picture. The red light DOES NOT turn off. This led me to believe it was an audio video cable problem. I noticed for the first time today though that after waiting a bit, the game will sometimes come back on and shut off again.

The red light always stays on. The game itself starts form the beginning again every time the picture goes away which means its not just the signal to the TV I am losing, but the system itself is restarting every time. My next plan is to track down another power cable and see if it helps. I haven't found anyone who has one yet though. I might end up buying one. If this doesn't work though I will be completely stumped.

Any advice would be appreciated.

⟐ Commented February 08, 2025 at 4:08 MST

⟐ Commented January 06, 2025 at 7:38 MST

N64 is giving me a no signal message on my Samsung TV.

The power red light is on.

The same AV cable works on the GameCube.

I've tried removing Expansion Pack and different cartridges.

The console has worked in the past years (not played in the past 3)

Should I buy a SCART adaptor?

What else can I do to make it work?

Fixed it, maybe. I extracted the Expansion Pack again, inserted the old pack, then inserted the Expansion Pack once more and it works.

Though now it does not detect controllers in port 1.

⟐ Commented December 25, 2024 at 13:58 MST

Here is all that i does

Has power and red light

black screen no sound

gives signal (the tv does not show no signal)

all parts work on my other one

I got it!

Turn it on without the cartrage

TV should say NO SIGNAL

Put the cartrage in (With the N64 on)

Turn the n64 off then on

should turn on

⟐ Commented December 21, 2024 at 7:50 MST

A client brought me his N64; his little kid broke the yellow plug of his composite cables at the TV, and now the console won't output at all (lamp on, no video, no audio).

Testing:

I've tested it with multiple cables and can confirm the issue. Gone through the following steps:

• Cleaned inside and underneath the cartridge slot connector;
• inspected all pins of each IC;
• cleaned and tested continuity of AV port pins
• Tested voltage at 12V and 3.3V rails
• Tried different expansion/jumper paks
• inspected capacitors
• Tested voltage at each pin of the AV port (except RGB & Sync which tested 0 of course because it's not a modded system)

All tests were OK. Not sure where to test further. I'm leaning towards a combination of recapping (which I would've done anyway) and a new cartridge connector. Any ideas?

⟐ Answered November 26, 2024 at 1:25 MST

⟐ Commented October 06, 2024 at 6:54 MST

but, after i turned off N64, and Turned on again, then there was no signal.

The problem is that every time I run my N64, I have to turn the monitor on and off. Is there any way I can get a signal even if I turn the N64 on and off without turning off the monitor?

I tried

:changed new av cables

cleaned cartridge and cartridge slot

take off the jumper pack, cleaned, and reinsert

⟐ Answered September 25, 2024 at 0:41 MST