Hello there, a few months ago I've bought a Harmony cart (SD "classic" version), have been a happy user of it up until last weekend. I was having a gaming session with friends, lots of different consoles on, the 2600 was on for a while with the Harmony but for a while no one was playing, at one point I look at it, the 2600 is "crashed" (vertical colorful lines on screen). It doesn't work again, I try to turn off-on the 2600 and all I get is white squares scrolling on the screen. I just turned it off and was going to check it later.
So start of the week I test it. It works, but after a few minutes of playing, it crashes (always with colorful patterns on screen) and it doesn't turn on again (after it crashes, if I turn the 2600 off-on, all I get is a black screen or the white squares scrolling). If I wait a few seconds and try to turn it on again, it works, but then it crashes pretty quickly. If I leave it off for several minutes and turn it on again, it works for a few minutes, then it crashes again.
At first for some reason I thought the cartridge dust flap was pushing the cartridge out of the console, so I disassembled the cartridge and tried to use just the board direct in the console. No deal, same problem.
Then I reinstalled the firmware. The reinstall worked finely (no trouble connecting to the Harmony on my PC), but I still got the same problem.
With other game cartridges the console is working fine. Had a long session of Kangaroo on an original cart and zero crashes, so it seems to be an issue with Harmony indeed.
If I had to take a guess, it looks like something is getting overheated on the cart, but after it crashes everything on the cart board is very cold, couldn't find any part of it being hot. On my way to work today I bought a contacts cleaner spray and I'll try to clean the board with it.
Anyone has any other suggestions? Maybe a cold solder? I have a voltimeter and friends who are *very* skilled with a soldering iron If someone could give me some directions I'd be very grateful.
Thank you in advance.
Edited by shatterhand, Sat Jan 27, 2018 6:21 AM.