Darn, I thought you had found something there, like a bad TMG (though a 1.02 doesn't seem like a bad output)... one last clock to check is Q3 on pin 16 of the TMG should also be 2.05.
If that's good, then you need to check for RDY, IRQ, and NMI on the CPU - they should all be high. Pins 2, 4...