I have a non-working PDT-11/150, which fails self test 7 (console USART) and when not in test mode, and with autobaud disabled, doesn't send anything to the console.
I dumped the ROMs (two 82S2708 1Kx8 PROM for LSI-11 code, three 8316E 2Kx8 masked ROM for the 8085 I/O processor, and one 8316E for the 8085 floppy controller), and I've started disassembling the 8085 ROM code to figure out what the self-test actually does, but it's slow going. It would be really helpful to have a copy (paper or scan) of the Field Maintenance Print Set. Does anyone have it? Thanks! Eric