Toshiba T4400C

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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.
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

Picture of Toshiba T4400C Internal power supply board
Capacitor Specifications and Footprint Information
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

Capacitors
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

Related Links

References