TRS-80 PC2 Doubt

[smp]

So far, over the past several months, I've purchased two PC-2s fro TAS. Each arrived to reveal some sort of problem - one had flaky keys and the other could not hold a program. That last one is on its way back now. Funny problem. MEM showed 22xxx even though it was not expanded and, while I could type in program lines, they disappeared after being typed in, and scrolling up or down showed only empty memory.

I'd really like to get my hands on a good working PC-2, even if it had blue wires in it! 8)

smp