More parts I need to replace on the VT100

Hi I looked at the schematic and the parts you'd indicated. It looks like one of them was one off and was R55 and not D11. From the looks, it might be that you have other failures in the supply. You've indicated R11, R21 and R55. These are all part of the circuit that drives the primary switcher transistor through T3. You might check D11 to make sure it isn't shorted. You might want to run the supply separately to check outputs. A short in T3 to the mains would also cause a lot of troubles and burn these resistors( taking may other part with it ). Other parts to look at would be: Q2, Q3, Q4, E5 and D4 These are parts that could also be involved. It does look like there is something other than the resistors blown in the supply. Dwight