Photographs of the unit inside and out.
Photographs from the initial disasembly. There's a lot of seemingly pointless detail here, but might help solve problems with broken wires, rebuilding the rotted foam air seals, etc.
Overall view of CPU cabinet, cover removed (normally tilts forward, removed for examination). Rotating memory on left, Memory Controller PCB, mounted vertically along left edge of memory just visible, two 7-pin mini tube connectors to memory read amps on memory mounting plate. Power supply lives under the memory, card cage to the right.
A "field ECO", where ECO is "Engineering Change Order". In other words, a factory screwup; the thermistor meant to monitor card cage temperature is shielded from some hotspot on the Flex controller PCB by this taped-on piece of teletype paper.
Punch and reader interface logic PCB.
LGP-21 nomenclature plate, rear of unit.
Two photos each, one backlit so you can see back copper.
