Macintosh PowerBook 190: Difference between revisions

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Revision as of 15:59, 22 October 2024

For more information, see this article's corresponding Wikipedia page: PowerBook_190.
Macintosh PowerBook 190
Preliminary Information
Release Year 1995
Leak Risk High
Batteries Removable
Mounting Technology SMD
Capacitor Types Polymer, Aluminium Electrolytic
Destructive Entry No
Hardware Specifications
CPU 68LC040 @ 33 MHz
Memory Capacity 4-40MB
Memory Type Proprietary DRAM Card
Storage 3.5in 1.44MB Floppy Disk, 2.5in 500MB IDE HDD
Power Requirements
Input Voltage 24V DC
Current (Amps) 1.87A
Power Connector Centre Positive


Known Issues

No Power

Causes

  • Loose power supply connector on motherboard.

Solutions

  • Reflow/reattach power supply connector.

Disassembly Notes

Uses Torx T8 Screws throughout but only 6 screws are required for motherboard extraction. Many ribbon cables are used to connect peripherals to the board so patience is required.

Original Parts

Logic Board (48.45701.001)

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C70, C71, C78, C79, C89, C90 6 100 µF 35V SMD 105 °C Aluminium Electrolytic
C111 1 47 µF 35V SMD 105 °C Aluminium Electrolytic Nichicon
C113 1 33 µF 25V SMD Polymer

Related Links

References