UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Computers

Notices

Vintage Computers Any vintage computer systems, calculators, video games etc., but with an emphasis on 1980s and earlier equipment.

Closed Thread
 
Thread Tools
Old 18th Jun 2019, 3:18 pm   #1
ViperSan
Tetrode
 
Join Date: Jun 2019
Location: Manchester, UK
Posts: 81
Default Another vintage Laptop

Cleaning some cupboards out in my shop ..and there lurking at the back was a very nice leather laptop bag.
A very small bag ...so obviously an old lappy.
Assuming it isn't empty.
Well ..it wasn't.
A complete Toshiba T2400CS ...but does it work ??
After 2 power ups it started..with a borrowed 15v psu brick from one of my other antiques.
Not the brightest of screens but then it isn't a TFT.
After some 10 minutes of norton file checking and a failed attempt to connect to a network that doesn't exist.
I was rewarded with windows for workgroups 3.11
not sure of hard drive size as yet but it is functional.
..and doesn't have much ram.
A 486 cpu if memory serves..
But still a nice find and all port covers and hinges are intact.
I may try and pimp it out a bit more and maybe try installing win95
From previous encounters with this series ..the floppy drive rarely fares well ..on account of they are belt driven and the rubber melts.
We shall see.
I'll post a photo if anyone is interested later.
What a treat to see those flying windows appear after all these years,
rgds
VS

Last edited by ViperSan; 18th Jun 2019 at 3:28 pm.
ViperSan is offline  
Old 18th Jun 2019, 5:05 pm   #2
AC/HL
Dekatron
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,637
Default Re: Another vintage Laptop

But, has it got Afterdark. Flying toasters!
AC/HL is offline  
Old 18th Jun 2019, 5:08 pm   #3
ViperSan
Tetrode
 
Join Date: Jun 2019
Location: Manchester, UK
Posts: 81
Default Re: Another vintage Laptop

Quote:
Originally Posted by AC/HL View Post
But, has it got Afterdark. Flying toasters!
Sadly not ..but I'm happy with the find.
lol
ViperSan is offline  
Old 18th Jun 2019, 5:22 pm   #4
Andrew2
Nonode
 
Andrew2's Avatar
 
Join Date: Mar 2010
Location: Dukinfield, Cheshire, UK.
Posts: 2,034
Default Re: Another vintage Laptop

I'd love to see a picture, VS. Some of the older laptops had a pleasingly chunky look.
__________________
Andy G1HBE.
Andrew2 is offline  
Old 18th Jun 2019, 5:47 pm   #5
ViperSan
Tetrode
 
Join Date: Jun 2019
Location: Manchester, UK
Posts: 81
Default Re: Another vintage Laptop

Coming right up Andrew..
My entire Toshiba collection from this period with a single photo of the new arrival.
The grey one is 510CDT
There are 2 x T4900 CT
1 x T4500C
..and the latest addition the T2400CS
ready for their photoshoot
All have been fully restored..
I even built a battery NiMh for the T4900s to share..
all have working floppies but not the originals
later non belt drive units..
The T4200CS is as yet unknown floppy wise
The 510CDT has a working CD drive also.
I do love these old brick lappies.
One of the T4900s uses a CF card as a hard drive ..the other still has its original 810mb hd
Scuse the photo location as my bed was the only place big enough.

OS wise ..The 510 runs Win98se
the 4900s win95
and the other 2 win 3.1
rgds
VS

oh and yes that is one of my cats on guard ..
George ...sister Peppa is outside as yet
Attached Thumbnails
Click image for larger version

Name:	DSCF0098.jpg
Views:	188
Size:	72.3 KB
ID:	185307   Click image for larger version

Name:	DSCF0099.jpg
Views:	194
Size:	77.1 KB
ID:	185308   Click image for larger version

Name:	DSCF0100.jpg
Views:	205
Size:	61.6 KB
ID:	185309  

Last edited by ViperSan; 18th Jun 2019 at 5:54 pm.
ViperSan is offline  
Old 18th Jun 2019, 8:52 pm   #6
ViperSan
Tetrode
 
Join Date: Jun 2019
Location: Manchester, UK
Posts: 81
Default Re: Another vintage Laptop

Sadly ..as expected the floppy drive does not function ..so now I will try and find a more recent alternative that will fit.
The good news ..
..and this took me by surprise really ..it has built in scsi support .
Mine is the poor relation ..as there was a TFT version made which I suspect cost more when new.
..and that one came with 8mb ram ..wheras mine is only 4mb
This is a rather odd proprietory simm (I'll include a photo)
and the T2400CT as opposed to my CS version had a larger hard drive ..
Mine is a whopping 250mb the upgrade having 340mb
>>
I found the service manual online ..which is good ..
here are some of the specs
>>>>>>>

The Toshiba T2400CS/T2400CT is one of the lightest and most advanced portable computersavailable. Utilizing advanced technology and high-speed components, the T2400CS/T2400CT offers excellent display legibility, battery operation, and IBM PC/AT compatibility.The T2400CS/T2400CT system unit consists of the following features:qMicroprocessorThe T2400CS/T2400CT uses an SL Enhanced Intel 486DX2-50 microprocessor thatoperates at 50 MHz, 3.3 Volts.qMath co-processorThe T2400CS/T2400CT has a math co-processor which is stored in the i486DX2microprocessor.qCache memoryThe T2400CS/T2400CT has an 8 KB cache memory which is stored in the i486DX2microprocessor.qDisk storageT2400CS/T2400CT has an internal 250 or 320 Megabyte (MB) Hard Disk Drive(HDD) with an average access time of 13 milliseconds for the 250 MB HDD and 12milliseconds for the 320 MB HDD. A 3.5-inch Floppy Disk Drive (FDD) supports2HD floppy disks (1.44 Mbytes) and 2DD floppy disks (720 Kbytes).qMemoryThe T2400CS comes standard with 4 MB of CMOS Random Access Memory (RAM),and the T2400CT comes with 8 MB 3.3 Volts. This includes 640 KB of conventionalmemory with 3,456 KB of extended memory for the T2400CS and 7,552 MB for theT2400CT, which can be utilized as expanded memory compatible with the Lotus/Intel/Microsoft Expanded Memory Specifications (LIM-EMS).qSTN color LCD (T2400CS)A high-resolution, Supertwist Nematic (STN) color Liquid Crystal Display (LCD)displays 640x480 pixels with 4,096 colors for both graphics and characters. TheT2400CS internal display controller supports Video Graphics Array (VGA) functionsfor internal display and Super VGA (SVGA) for external display.qTFT color LCD (T2400CT)A high-resolution, Thin Film Transistor (TFT) color LCD displays 640x480 pixels.The T2400CT internal display controller supports VGA functions for internal displayand Super SVGA for external display.
1-2T2400CS/T2400CTqKeyboardAn easy-to-use 82/84-key enhanced keyboard with full-size keys and standard spacingis compatible with IBM standard software. The computer’s keyboard supports soft-ware that uses a 101- or 102-key enhanced keyboard.qBatteriesThe T2400CS/T2400CT has three different batteries: a main battery, a backup battery,and a Real Time Clock (RTC) battery.qPersonal Computer Memory Card International Association (PCMCIA) card slotThe T2400CS/T2400CT has two PCMCIA slots, which enable you to install a MiNCToshiba card modem or other industry standard PCMCIA release 2.0 card. The rightside slot is 14.5 mm (Type III). The left side slot is 5.0 mm (Type II).qParallel portT2400CS/T2400CT’s Centronics compatible parallel interface port serves two pur-poses. The port can be used to connect a Centronics compatible printer or an external5 1/4" floppy disk drive.qRS-232C portThe T2400CS/T2400CT has one 9-pin serial interface port.qMouse portThe T2400CS/T2400CT has one 6-pin mouse port on the back that can be connectedto an IBM PS/2 mouse.qKeyboard portThe T2400CS/T2400CT has one 6-pin keyboard port on the back that can be con-nected to an IBM PS/2 keyboard.qPort replicator portThe T2400CS/T2400CT has a port replicator port which enables connection of portreplicator. The port replicator allows connection of PS/2 mouse, parallel port, serialport, DC IN socket, SCSI port, Joystick, line in, line out, PS/2 keyboard, and externalmonitor.qRGB portThe T2400CS/T2400CT has one 15-pin RGB port on the back that can be connectedto an external video display.
T2400CS/T2400CT1-3qSCSI portThe T2400CS/T2400CT has one Small Computer System Interface (SCSI2) port.qMemory card slotThe T2400CS/T2400CT has one Toshiba optional memory card slot, which enablesyou to install a Toshiba optional memory card.qAccupointThe T2400CS/T2400CT pointer control stick, located in the center of the keyboard,provides convenient control of the cursor without requiring desk space for a mouse.qMicrophoneThe T2400CS/T2400CT has an internal microphone for an optional sound card
Attached Thumbnails
Click image for larger version

Name:	DSCF0101.jpg
Views:	149
Size:	124.8 KB
ID:	185327  
ViperSan is offline  
Old 18th Jun 2019, 10:18 pm   #7
ViperSan
Tetrode
 
Join Date: Jun 2019
Location: Manchester, UK
Posts: 81
Default Re: Another vintage Laptop

Hopefully got lucky ..
No chance of buying a working replacement for the Citizen W1D slimline floppy drive..
No chance of obtaining a replacement belt.
So went searching for a mitusmi 353F3 which is a drive I've used before in this situation.
It is slimline ..but sadly black a bezel.
But found the last one listed on eBay ..
offered a fiver including postage ..and it was accepted.
Hopefully I will get a result if I can transfer the flex ribbon over easily.
sometimes the connectors are upside down or on the wrong side of the drive.
Wish me luck.
lol

Last edited by ViperSan; 18th Jun 2019 at 10:41 pm.
ViperSan is offline  
Old 21st Jun 2019, 5:12 pm   #8
ViperSan
Tetrode
 
Join Date: Jun 2019
Location: Manchester, UK
Posts: 81
Default Re: Another vintage Laptop

The Mitsumi slim floppy arrived this morning.
As expected this is electrically similar so should work ok.
The problem in this case is that the misumi is 1mm thicker which isn't a big deal ..but also 1cm longer ...which is.
Thus I can to file the the floppy drive opening of the laptop case to allow it to protude a bit at the front.
That said it might not have looked so glaringly obvious if it had had a white bezel ..but sadly it is black.
Still I'd rather have it working than pretty.
pix attached
rgds
VS
Attached Thumbnails
Click image for larger version

Name:	DSCF0001.jpg
Views:	154
Size:	95.2 KB
ID:	185471   Click image for larger version

Name:	DSCF0002.jpg
Views:	164
Size:	88.3 KB
ID:	185472  

Last edited by ViperSan; 21st Jun 2019 at 5:19 pm.
ViperSan is offline  
Old 21st Jun 2019, 10:11 pm   #9
Slothie
Octode
 
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
Posts: 1,287
Default Re: Another vintage Laptop

When you've got it working and have nothing better to do you could always get some plastic primer and a suitable rattle-can and respray the bezel to match...!
Slothie is offline  
Old 21st Jun 2019, 10:36 pm   #10
ViperSan
Tetrode
 
Join Date: Jun 2019
Location: Manchester, UK
Posts: 81
Default Re: Another vintage Laptop

Yep ..that's a good idea buddy.
Too many irons in the fire atm, so a job for later methinks.

Just done a quick lash up reassembly to test the drive.
Formatted a 720k and 1.44mb just fine.
ViperSan is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 9:36 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.