Conventional Memories

This page is part of my Toshiba E.M.I.S. archive project, to learn more please visit the project page, Some of the files from the Toshiba BBS referenced here can also be found there.

Index

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Desk Station IV References

General Specifications

Dimensions: 346 x 385 x 111 mm

Weight: 8.0 kg

Power supply: 115/230 V, 2.5/1.5 A

Use for: all models with 150-pin port

Technical Modifications-TIC

Interface connectors:

1 x serial, 1 x parallel, 1 x ext. FDD, 1 x AT- or PS/2-keyboard, 1 x PS/2-mouse, 1 x RGB-monitor

Expansion slots:

2 x full size for 16/8-Bit ISA-cards, max. size: 25.4 x 208 x 122 mm

1 x for 5.25" FDD, max. size: 43 x 208 x 150 mm

DIP-Switches:

DIP-switches 1 - 5 control terminator resistors for the expansion slots:

ON=DRQ pull-up active, OFF=DRQ pull-up not active (default=ON)

Switch Line

DIP-switch 1 DRQ1

DIP-switch 2 DRQ2

DIP-switch 3 DRQ3

DIP-switch 4 DRQ5

DIP-switch 5 DRQ6

DIP-switch 6 N/U

DIP-switch 7 Off SL-chip set used

On non SL-chip set used

DIP-switch 8 On Clock at pin B20 is same as notebook

Off Clock at pin B20 is 4.77MHz

IRQ- / DRQ-Lines

Supported IRQ-Lines: IRQ 3 - 7, 9 - 12, 14

Supported DRQ-Lines: DRQ 1 - 3, 5, 6

Power supply

DeskStation with production date:

PA2700E (Ser.Nr. 11113029), PA2700E Y (Ser.Nr. 12112396)

AC-Input: 115/230 VAC, 2.5/1.5A

DC-output: 21V, 1.9A for computer

expansion card slots:

Voltage Expansion slot Desk Station

+5 VDC (5%) 4.0 A* (5.0 max) 0.5A (Sys PCB)

-5 VDC (10%) 0.3 A -

+12 VDC (5%) 2.0 A** (2.5 max) 0.1 A (fan)

-12 VDC (10%) 0.3 A -

*old value = 3.0 A (3.8 A)**old value = 1.4 A (1.8 A)

Jumper Setting

only with System PCB FD4SY2 and higher

PJ13 Meaning

shorted Mode / Density select

not shorted no Mode / Density select

PJ11 PJ12 Meaning

shorted shorted(1+2) 1.2 MB FDD

not shorted shorted(2+3) 360 KB FDD