Observe image sound, but the color of the image and irregular flashing brightness changes. The color change is the most serious, sometimes almost never see color, color also constantly flash (when strong light). The color becomes weak when the first picture some color less places to turn to black and white, color into black and white after more local state (because of the change process, sometimes the picture is very special status: logo has a color TV, other places but not color). The brightness change didn't change color quickly, but change is bigger, also can appear sometimes very obvious flyback lines, sometimes like the brightness to minimum contrast to the half of the image! gJLservice manual download site
 gJLservice manual download site
 gJLservice manual download site
24 c08 changed in storage, decoding TA8880 changed, 3 primary drive TA8889 changed, baseband delay TA8772 changed, check the decoding of color pattern recognition output pin (control baseband delay TA8772) abnormal voltage, any other voltage is normal (including ABL and ACL feet)! Just came a TC - 29 gf30r machines. I took two TC - 29 gf30r machine switch circuit board. The main circuit board changed, failure remains the same. The last exchange depending on the plate. Failure. . Then put the defective visual board D334 D335. D336 disconnect, fault. Two days of commissioning failure didn't appear again.gJLservice manual download site