A little background: the IC's went and I replaced both with some 394-160's. This solved the issue at hand, and video games on high resolution graphics were pumped for about 3 weeks straight 12 hours a day. Now it's got nothin. The red LED comes on, blinks, the relay clicks and then all goes silent. Only one LED comes on if the big connector is connected to the IC board, and 3 LEDs come on if it isn't. The LED at the top left of the board still remains dead. All of the fuses are fine, and I can see no burnt resistors or diodes. Would anyone care to gander at what may have gone wrong?
Disconnect the convergence board and see if the led's light up or if the set comes on. If it does, the iC's are bad. When you replaced the iC's did you get the priginal replacements made by Sanyo? Did you install new heat sink thermal compound on the backs of the new IC's before you replaced them?
Disconnect the convergence board completely or just the big swinging connector? When the largest connector is off, the red and three greens come on, but D928 (top left corner) stays off. The IC's are indeed Sanyo replacements. The IC's very slathered with Arctic Silver before they went on, and the heatsink cleaned with alcohol prior.
time to break out the service manual I'm afraid and start by measuring the switched voltages in the power supply.
Here's something I can't wrap my head around - Protector E907 shows 115V running through it, but not a single one of the other protectors has ANY potential. E907 doesn't look burnt or anything, but could it be the problem?
Iam NOT understanding WHAT YOU ARE TALKING ABOUT!!