Coolant Leak on Mitsubishi WS-A65 CRT RPTV

[SurrealMustard]

Yep, got a CRT rear projection HDTV to work on. Basically, after transporting it, fixing the cold solder joints on the convergence ICs, and cleaning the lenses, I got it all put back together and everything worked great for about two days. I had just ascertained a non-malfunctioning Xbox 360 to put this thing through its paces and was all ready to get started, but when I pushed the power button on the set, it just clicked right off and started blinking the power light. Removing and restoring power has not changed the condition and holding "menu" and "input" does not provide any kind of an error code.

Before I go any further, I need to clarify that this is not one of the digital Mitsubishis with the DM that always breaks down and causes the "blinking green light of death".

Anyway, I cracked it open this morning and found that coolant had inconveniently dripped from the red tube onto one of the white ribbon connectors going between the mainboard and the power supply (first two pictures). After removing the board and thorougly cleaning it up (third picture showing burnt, but clean, ribbon), I was hoping that it might be fixed, but it is unfortunately still doing the same exact thing. Further inspection of the rest of the set has revealed no other obvious coolant leaks or stains.

Any ideas as to where to troubleshoot next?

(If it helps, the "WS-A65" is one of the V20B chassi models (similar to a WS-65311).)