Serpentor Posted January 14, 2017 Share Posted January 14, 2017 I attempted the composite mod from Best Electronics this evening. I am getting video and audio from the system, but the 7800 shuts off at random times (usually after 3-5 minutes). Does anyone have any idea why this is happening? Also, the menu of the Harmony cart is practically unreadable on my 46" tv through the composite modded system. I have not tested it on another system or tv, but should it look at least readable? The games look okay. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted January 14, 2017 Share Posted January 14, 2017 Not sure about the powering off aspect as I've not see a 7800 do that. As for the menu on the Harmony, try pressing the color/bw switch on the menu screen. this will cause the menu palette colors to cycle and at least on my LED flatpanel makes the menu much easier to read. Quote Link to comment Share on other sites More sharing options...
Serpentor Posted January 14, 2017 Author Share Posted January 14, 2017 I figured it out, and what I learned is so simple! I was testing it without reassembling the large black metal piece behind the cartridge slot. It apparently serves as a heatsink, and the system was overheating without it. I happened upon this by accident when I touched the small black square there and noticed it was extremely hot. Hopefully, this will be of some use to others who experience the same issue. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted January 14, 2017 Share Posted January 14, 2017 I figured it out, and what I learned is so simple! I was testing it without reassembling the large black metal piece behind the cartridge slot. It apparently serves as a heatsink, and the system was overheating without it. I happened upon this by accident when I touched the small black square there and noticed it was extremely hot. Hopefully, this will be of some use to others who experience the same issue. Why did you remove the 7805's heatsink in the first place? That shouldn't be needed to do the AV mod? 1 Quote Link to comment Share on other sites More sharing options...
+save2600 Posted January 14, 2017 Share Posted January 14, 2017 ...yep, that's the voltage regulator's heat sink alright. Not just there for the added weight. Quote Link to comment Share on other sites More sharing options...
Serpentor Posted January 15, 2017 Author Share Posted January 15, 2017 Why did you remove the 7805's heatsink in the first place? That shouldn't be needed to do the AV mod? I gave the system a thorough cleaning while it was open. Otherwise, the heatsink definitely would never have been off. Quote Link to comment Share on other sites More sharing options...
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