Chosen Solution
So I was given a N64 to repair and was told that it would play sound but no video. However, when I brought the N64 home to check it out, there was no video or sound. The red light comes on. I have checked all of the cables and power supply with another working console, so those aren’t the issue. I have also tested the game and jumper pack I am using on another console and those work as well. I have done my best to clean the cartridge slot and expansion slot. I have even gone as far as resoldering the pins of the cartridge connector, A/V port, and power port. EDIT: I’m not sure if this is important to point out, but while I don’t have any video/audio, there is a change that happens on certain TV’s when I turn the console on. I am using the RF switch for my N64 and when I turn the console on, the TV goes from just displaying static to a black screen. However, it still shows the “No Signal” message on the TV.
I just had this issue, tried cleaning all contacts on console and games as well as re seating the expansion pak. Still the same fault; no signal. What did fix it was slightly lifting the cartridge up after inserting it down fully, raising it up 3-5mm and it works perfectly! Maybe all the gunked up dust at the bottom of the console cartridge port prevents a good connection(and is near impossible to access to clean). Aztec level here we go! :)
Sounds like you may have to replace the capacitors like I’m doing on 2 other consoles now.
