This model uses two of the STK-392-120 CHIPS and here are most of the usual resistors to suspect or check:
RESISTOR, 1.8OHM 1W
RESISTOR, 1/2W 100 OHM
RESISTOR, 1W 1.2 OHM
RESISTOR, 1W 2.2 OHM
RESISTOR, 2.7 OHM 1W
RESISTOR, 3.3OHM 1W
RESISTOR, 3.9 OHM 1 WATTThe RK ones are all marked on top and bottom of circuit board---usually if one is bad you will be able to see it is discolored---all are very low value and should read open or good only.
This is a fairly easy set to do this on---the whole convergence board (right side from the back view) is held in with 3 screws and an assortment of plugs--3 plugs are identical (convergence yokes and you need to mark so you get each back in same place)
A row of black snap plugs on the left side and with the screws and other plugs removed the board will lift up and out of the set.
DON'T waste your money on one of the "kits" being sold on the net---you can buy a pair of the chips for about 12 dollars on Ebay and usually only one (if any) of the resistors will be bad---those kits sound like a good idea but at 50-80 you are buying things you will not likely need to repair the set.
Let me know if you have any questions and if this information helped you rate this solution as I do this here for free.