Fierodoug5 Posted November 1, 2020 Share Posted November 1, 2020 I just got a 7800 and my standard harmony cart does not work in it. It acts like no cart is inserted. 2600 carts and a uno cart work fine. Any suggestions? Thanx Quote Link to comment Share on other sites More sharing options...
+batari Posted November 2, 2020 Share Posted November 2, 2020 Harmony carts are tested on 7800s before going out. If it isn't working with yours, and your Harmony works on other consoles, the first thing to do is clean the cart fingers with some isopropyl alcohol and a Q-tip. If it continues to fail, there is a chance you have a bad RIOT chip on your 7800. Many carts will boot and play with a bad RIOT chip and errors in the game won't necessarily show up right away, because they use the RIOT RAM as data storage. However, because Harmony runs code from RIOT RAM on boot, which means that even just a single bit of bad RIOT RAM will show up right away. One way to see if you might have bad RAM on your console is to load a game directly to the Harmony's memory through USB, using the Harmony software. Load a game that already seems to play on your console. If the game boots and plays then the problem might be your RIOT chip. 1 Quote Link to comment Share on other sites More sharing options...
Fierodoug5 Posted November 2, 2020 Author Share Posted November 2, 2020 Thanx I'll try that after work Quote Link to comment Share on other sites More sharing options...
Stechmann Posted January 3 Share Posted January 3 i have the same problem. @Fierodoug5 what was the outcome? Quote Link to comment Share on other sites More sharing options...
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