Macintosh PowerBook 190
The PowerBook 190 is a laptop computer manufactured by Apple in 1995. It was the final Apple Computer produced with a Motorola 68k CPU and was targeted as a low cost portable Macintosh. There are two available display types, a greyscale 9.5 inch or a colour 10.4 inch display on the 190cs model.
- 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)
| 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 |
Display Inverter Board (820-0569-A)
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C3 | 1 | 10 µF | 50V | SMD | Aluminium Electrolytic | ||||||
| C9 | 1 | 2.2 µF | 50V | SMD | Aluminium Electrolytic |
Casio MFSTN 9.5" B&W Display Board (MD805TT00-C1)
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C1,C2,C3 | 3 | 100 µF | 16V | SMD | Aluminium Electrolytic |