Toshiba T4400C: Difference between revisions
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(Created page. Added known issues and internal power supply details.) |
(Added maintenance manual links) |
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===Symptom or Problem Encountered=== | ===Symptom or Problem Encountered=== | ||
Power LED flashing red | Power LED flashing red | ||
====Causes==== | ====Causes==== | ||
*Leaking and/or faulty capacitors on the internal power board | *Leaking and/or faulty capacitors on the internal power board | ||
| Line 113: | Line 112: | ||
*Digikey BOM: https://www.digikey.com/ | *Digikey BOM: https://www.digikey.com/ | ||
==Related Links== | ==Related Links== | ||
*[ | *[http://minuszerodegrees.net/manuals/Toshiba/Other/Toshiba%20T4400SX%20-%20Maintenance%20Manual.pdf Toshiba T4400SX Maintenance Manual (also applies to the T4400C) hosted by minuszerodegrees.net] | ||
*[http://minuszerodegrees.net/manuals/Toshiba/Other/Toshiba%20T4400SXC%20T4400C%20-%20Maintenance%20Manual%20Addendum.pdf Toshiba T4400C Maintenance Manual Addendum (Differences between the T4400SX and T4400SXC/T4400C) hosted by minuszerodegrees.net] | |||
==References== | ==References== | ||
<references /> | <references /> | ||
Revision as of 22:55, 15 August 2022
- For more information, see this article's corresponding Wikipedia page: Device.
| This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables | 
|
| This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so. | 
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Toshiba T4400C
| Preliminary Information | |
|---|---|
| Release Year | 1990 |
| Leak Risk | Medium |
| Batteries | Yes: one main NiCd, one RTC, and one sub-battery |
| Mounting Technology | Through Hole, SMD, Sockets |
| Capacitor Types | Aluminum Electrolytic, Ceramic, Polymer |
| Destructive Entry | No |
The T4400C is a 486 laptop with 3.5" Floppy Disk Drive and a Hard Disk Drive. It has one main battery, a sub battery, and Real Time Clock battery.
This page is a work in progress as the repair takes place.
Known Issues
Symptom or Problem Encountered
Power LED flashing red
Causes
- Leaking and/or faulty capacitors on the internal power board
Solutions
- Clean and recap the internal power board
Disassembly Notes
Warnings or tips to disassemble then device
Original Parts
Internal power supply board
Toshiba, N0P 0M-2, B36070451015, C0Y49S3
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1000 µF | 6.3 | Through Hole Radial | 10mm | 9mm | 5mm | 105 °C | Aluminum Electrolytic | ELNA | ||
| 3 | 150 µF | 35 | Through Hole Radial | 10mm | 9mm | 5mm | 105 °C | Aluminum Electrolytic | ELNA | ||
| C3 | 1 | 8.2 µF | 10 | Through Hole Radial | 6mm | 8mm | 3mm | 105 °C | Aluminum Electrolytic | ELNA | |
| C5, possibly C6 | 1 | 5.6 µF | 16 | Through Hole Radial | 6mm | 7mm | 3mm | 105 °C | Aluminum Electrolytic | ELNA |
Replacement Parts
Basic PCB Name
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| Digikey |
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.
Kits
- Digikey BOM: https://www.digikey.com/
Related Links
- Toshiba T4400SX Maintenance Manual (also applies to the T4400C) hosted by minuszerodegrees.net
- Toshiba T4400C Maintenance Manual Addendum (Differences between the T4400SX and T4400SXC/T4400C) hosted by minuszerodegrees.net