De nada, comrade,

Bound copies of these books are the only way to go for in depth study, no index or even keyword search of a .PDF comes close to post-it note tab markup. Pina's DMS is invaluable up to the Mac II or so, especially so for peripherals repairs. The only lacking feature is a good Aleph-Beth index, but the model specific index is quite good. IMO, PDF versions are for quick reference. There's good reason for the Missing Manual thing, nothing beats a bookshelf of reference materials at hand  .  .  .

.  .  .  but I'm a Dinosaur from the RTFM era  .  .  .  circa late Cretaceous. :blink: