Quoted from WW2GURU:I have a half dead T2 board as well but just missing a bunch of speech callouts. Actually this is a Dr Who board that was put into a T2. I also had to replace the c46/c47 combo when the tant cap did a fireworks display. I lost speech a couple years after the repairs so I doubt they're related. I dont think it would be a bad idea to recap the whole thing and maybe even look at the resistors for drifting on this near 30 year old board. Fascinating thread tho with the in depth tests. You've certainly advanced the knowledge base with your findings
Replacing all the caps and the SRAM usually brings them back to life.
Sometimes replacing U21 and U28 as a pair works as reported by Ken Layton awhile back.
Cleveland, OH
