IBM PCjr Hardware Maintenance And Service page 257

Diskette-Drive Adapter Replacement 605
Warning: Be careful when the top cover is off the
system unit. The components on the power board
can become hot with the system unit On.
1. Connect the diskette-drive signal cable to the
diskette-drive adapter.
2. Plug in the diskette-drive adapter by gently pushing
it straight down into its system board connector,
making sure that the adapter rests in the notch at
the rear of the case.
3. Replace the system unit top cover (105).
Power Board
Diskette-Drive
Signal Cable
System Board
4-600-2 Diskette Drive
Diskette Drive
Diskette-Drive
Adapter