I will first start out by saying, it is very important that you have some soldering experience working on solid state printed circuit boards and that you know that too much heat from the soldering iron will most likely ruin the pc (printed circuit) board. If this happens, it can be a very difficult repair. The boards are no longer available for these sets from Mitsubishi so I cannot stress enough, if you have no soldering experience, let a pro assist you in this repair. One more very important thing to remember and NOT DO!! If the convergence is way out or cannot be adjusted by the customer controls, do not go into the service menu and try to adjust the convergence. It will only make it very difficult for you to adjust the set after it has been repaired. The service menu adjustments are to make MINOR drifting alignments, as over time, the adjustments may drift a bit due to part tolerance changing. I am using the adobe reader eight (8). If the page numbers do not match up as I have explained, then you will need to upgrade to the newer version eight (8).  The service manual Is available for a free download at  

            http://www.techlore.com/group/2/list_downloads

            Next, is a very important step. MAKE SURE THE TV SET IS UNPLUGGED FROM THE WALL SOCKET!! This may seem a bit redundant, but I cannot count how many times I have seen technicians rush into a job and forget to unplug a set from the wall. Now let’s get into the set. First remove the back board by removing 20 or 21 screws from the backboard of this set. This is described on page 10 of the service manual. Next, remove the left and right speaker grill covers as well as the center part of the TV set in the front. These simply pull off so do not be afraid to pull on them a little, side to side till they come off. Now take off the front board by removing six (6) screws. This is all on page nine (9) of the service manual. Now, remove three (3) screws securing the entire chassis in the rear of the set as described on page 15 of the service manual. Next, unclip the two (2) chassis locks in the front of the TV set as the locks are shown on the front of the chassis on page 16 of the service manual. Now, slide the chassis out toward the rear of the unit and slide upwards to access the bottom of the printed circuit board.

             Now, let’s look at page 16 towards the bottom of the page. There right in the middle of the power board, the board in the middle part of the chassis, notice the large metal block with fins on it. On that block, which is called a heat sink, is a line that says IC8C01 & IC8C02 conv. Outputs. That is a mistake in this service manual. There is only one (1) Conv. output IC in this set and it is marked IC8C01.  Now you want to first locate the two (2) pico fuses on the main power supply board. As if one or more of these are not bad, your convergence IC is most likely not the problem with the set. This is not always the case, as maybe the IC opened up and not shorted, therefore blowing out the fuses. I have not seen this condition too many times though.  The fuse are marked ON THE BOARD, as F9A04 and F9A05. They are located next to or near a large transformer labeled on the board as T9A50.They do not look like regular glass fuse but more like resistors. Measure for a short or full continuity across both of them. If one or both are bad, DO NOT simply replace them, the IC is bad, and replacing them will cause further power supply damage. Fuses do not blow in this set unless there is a problem. . My experience has been, if a fuse or two are bad, find out why it blew.  These are 5 amp pico fuses. And can be ordered from the link that I have posted above.  These pico fuses control the plus and the minus 24 volts to the convergence IC. Also be sure to check the resistance of several feedback resistors. They are labeled on the PC board as  R8C05, R8C06, R8C13, R8C14, R8C21, R8C22, R8C29, R8C30, R8C37, R8C38, R8C45, and R8C46. These resistors are flameproof and are 3.9 ohm resistors@ two (2) watts. The other resistors in this convergence circuit that sometimes will burn up are labeled on the board as, R8C07, R8C15, R8C23, R8C31, R8C39, and R8C47. These resistors are also the flameproof type. The values of these resistors are 150 ohms @ three (3) watts. Also, if you have the plus and minus 24 volts on the power supply but not on the convergence IC pins numbers 10, 12, 13, 15, 16, and 18, check the two coils labels on the board as L8C01 and L8C02. If one or more of these cols are bad, replace C8C05, and C8C03. They are 1000uf@50 volts.