Archive No. 60
PowerBook 1400c
Sound doesn't work out of speaker. Works through headphones. Crackling sound from speakers when not using headphones. Recap?
Historical Context
The PowerBook 140 was the mid-range of Apple's original 1991 PowerBook lineup — a 16 MHz 68030 with a passive-matrix display, positioned between the Sony-designed 100 and the premium 170 with its active-matrix screen. It established the PowerBook form factor that competitors scrambled to copy: trackball centered below the keyboard, wide palm rest, portrait-oriented display.
Specifications
Technical Blueprint
Ref: M3571
Processor
PowerPC 603e 133MHz
Memory
8MB
Storage
775MB IDE HDD
Graphics
800x600 11.3" color active-matrix
Operating System
Mac OS 8.1
Gallery
Detailed Observations
The Story
Sound doesn't work out of speaker. Works through headphones. Crackling sound from speakers when not using headphones. Recap?