^^^Reads like you'll need both blue and green fluid replacements. Hard to imagine that much algae buildup in the green. After completing blue/green coolant change in my year-2000 Philips 64PH9905, found all images were too red. Marked the positions of red, green, blue screen-bias potentiometers (see earlier posts here), then adjusted the red bias pot down, which cured the problem. Gray scale tweaking (outlined in general here
) may be necessary after adjusting screen bias pots, and the Philips coolant change
instructions I used (under CRT replacement) said gray scale recalibration is recommended after coolant change. Knowing I'd have to adjust gray scale anyway, with your symptoms, here I'd probably adjust the green bias pot somewhat higher (not full) while peering into the lens, but quickly return it to its preset position.
A brighter green image during the brief bias adjustment would suggest it's a severe fluid contamination problem. (A search for Philips threads in this forum for ~6 months back points to several fluid-change threads.) Changing a bad green CRT tube is possible, but if fluid contamination isn't the problem, all the CRT-drive and signal circuits, or perhaps even a green signal input cable (the Y in YPbPr), have to be eliminated as culprits first.-- John