Tandy 1400 FD

Un portable made in Tandy, sans intérêt. Notons que le CGA est un pur compatible et pas l'aménagement  PC Junior repris par les Tandy 1000. Car le 1400 n'est pas un membre de la nombreuse série 1000.

Le Tandy 1400 est décliné en trois modèles LT, FD et HD. Ce dernier est monofloppie et intègre un disque de 20 Mo. Tous les modèles ont droit à l'environnement propriétaire DESKMate.

Les modèles suivants 1100 et 1500, successeurs des 1400 ont été construits par Panasonic. Il y a donc fort à parier que les 1400 l'ont aussi été, gage d'une bonne compatibilité IBM.

Notons que la RAM peut être de 768 Ko max. et les 128 Ko supérieurs utilisés comme RAMDrive.

Plus de détails sur les modèles construits dans les informations techniques .

Tandy 1400 FD

Première acquisition: 1991
Généreux donateur: le trottoir d'en face

Constructeur: Tandy
Modèle: 1400 FD
Année/Prix: 198?

CPU: NEC V-20 (équivalent au 8088 ) à 8 Mhz
RAM/ROM: 768Ko
Graphisme:  CGA LCD rétro éclairé CBS monochrome texte : 25x80
Mémoire de Masse: 2 floppies DD 720Ko
Dimensions : 9 x 32 x 37 cm (H x L x P)
Poids : 5kg
Périphériques :
Emplacement modem
Alimentation 15VDC 700mA plus au centre, 4.8V, 4400mAh Batterie: 4.8V 4400mAh

Setup

Pressez <Ctrl><Alt><Ins> pour rentrer dans le setup:

Key Definition Current Setting

• F1 : Set time for Standby Mode 3:00
• F2 : LCD/CRT LCD-CRT
• F3 : Internal/External Keyboard INT-EXT
• F4 : COM1/COM2 Setup RS/MODEM-MODEM/RS
• F5 : Direct Modem/Acoustic Coupler DIRECT-ACOUS
• F6 : Internal/External Screen Controller INT-EXT
• F7 : CPU Clock (MHz) 8.00-4.77
• F8 : Date (MM-DD-YYYY) 03-28-1992
• F9 : Time (HH:MM:SS) 19:35:37 Press ESC to Exit

This display lets you decide on certain hardware options and indicate your choice to the 1400 FD/1400 HD. In Setup mode, the function keys perform as follows:

• F1 Lets you enter the time you want to elapse between the last time you use the computer and its automatic shut off.
• F2 Lets you choose between using the built-in display or an external monitor.
• F3 Lets you choose between using the built-in keyboard or an external one.
• F4 Lets you choose either COM port 1 or COM port 2 for an internal modem board and the RS-232C port.
  F5 If you are using and internal modem board, lets you choose between using a direct modem connection or an acoustic coupler connection.
• F6 Lets you choose between using the internal display controller or an external color monitor controller.
• F7 Lets you choose between an internal clock speed of 8.0 MHz or 4.77 MHz.
• F8 Lets you set the date of the real time clock.
• F9 Lets you set the time of the real time clock.

1400 FD Monitor options

You can use the built-in LCD, or you can connect an external RGB color monitor to the computer.

Selecting a Display Device:
You can specify to the 1400 FD the type of display you are using (internal LCD or external color monitor) in the following two ways:

Using the function keys :
Press <Ctrl><Alt><F12> if you powered up using a color monitor as the default display. This tells the computer to use the LCD. If you powered up using the LCD as the default display, press <Ctrl><Alt><F11> to tell the
computer to use the color monitor.

Using the Setup mode :
Enter the Setup mode by pressing <Ctrl><Alt><Ins> . The F2 function key lets you make the selection. Press ESC to exit Setup mode.

1400 FD Pinouts

RS-232 Serial DB-9:

• 1. Carrier Detect
• 2. Received Data
• 3. Transmitted Data
• 4. Data Terminal Ready
• 5. Signal Ground
• 6. Data Set Ready
• 7. Request To Send
• 8. Clear To Send
• 9. Ring Indicate

Printer Interface:Connector Pin Assignment:

Pin # Description Contents
1 OUTPUT STROBE STROBE signal
2 OUTPUT PDB 0 Print data bit 0
3 OUTPUT PDB 1 Print data bit 1
4 OUTPUT PDB 2 Print data bit 2
5 OUTPUT PDB 3 Print data bit 3
6 OUTPUT PDB 4 Print data bit 4
7 OUTPUT PDB 5 Print data bit 5
8 OUTPUT PDB 6 Print data bit 6
9 OUTPUT PDB 7 Print data bit 7
         ____
10 INPUT ACKG Printer Acknowledge
11 INPUT BUSY Printer Busy
12 INPUT PAPER END Out of paper
13 INPUT SELECT Printer select
          ___
14 OUTPUT ATF Auto feed
         _____
15 INPUT ERROR Printer error
          ______
16 OUTPUT INIPRN Initialize Printer
          ______
17 OUTPUT SELINP Select input
18-25 GNDExternal 5-inch FDD Connector Assignment:

Pin # Contents
1 NC 15 DSEXT*
2 NC 16-23 NC
3-7 GND 24 INDEX*
8 BSIDESE 25 TRK0*
9 CDIR 26 STEP*
10 WRPRT 27 BMTRON*
11 RDDATE 28-32 GND
12 WRTATA 33-37 NC
13 WEN* 14 NC

Modem I/F Slot 20-Pin Connector Socket:

Pin # Signal Name Pin # Signal Name

• 1 TXDM  11 GND
• 2 RXDM  12 +5V
• 3 DTRM  13 GND
• 4 DSRM  14 +5V
• 5 CDM   15 GND
• 6 RIM   16 +12V
• 7 MODEM PWC 17 GND
• 8 NC    18 -12V
• 9 AUDIO 19 NC
• 10 DIRECT/ACOUSTIC 20 NC

Expansion Box I/F Slot 60-Pin Connector Socket:

Pin # Signal Name Pin # Signal Name
1 NC 31 A19
2 +5V 32 D0
3 ENABLE 33 D1
4 NC 34 D2
5 NC 35 D3
6 DACK0* 36 GND
7 IRQ3 37 D4
8 NC 38 D5
9 GND 39 D6
10 A0 40 D7
11 A1 41 EMW*
12 A2 42 EMR*
13 A3 43 GND
14 A4 44 EIW*
15 A5 45 EIR*
16 A6 46 TC
17 47 47 ALE
18 GND 48 BRST*
19 A8 49 DACK1*
20 A9 50 IRQ2
21 A10 51 GND
22 A11 52 +5V
23 A12 53 ECLK
24 A13 54 IRQ5
25 A14 55 DR3
26 A15 56 DACK3*
27 GND 57 AEN*
28 A16 58 DR1
29 A17 59 IOREDY*
30 A18 60 MOTOR ON

Hard Disk Controller I/F Slot 60-Pin Connector Socket:

Pin # Signal Name Pin # Signal Name
1 POWER FALL 31 A19
2 +5V 32 D0
3 NC 33 D1
4 +12V 34 D2
5 +12V 35 D3
6 NC 36 GND
7 NC 37 D4
8 SHIP READY 38 D5
9 GND 39 D6
10 A0 40 D7
11 A1 41 NC
12 A2 42 EMR*
13 A3 43 GND
14 A4 44 EIW*
15 A5 45 EIR*
16 A6 46 NC
17 A7 47 NC
18 GND 48 BRST*
19 A8 49 NC
20 A9 50 NC
21 A10 51 GND
22 A11 52 +5V
23 A12 53 NC
24 A13 54 IRQ5
25 A14 55 DR3
26 A15 56 DACK3*
27 GND 57 AEN
28 A16 58 NC
29 A17 59 NC
30 A18 60 GND