GridCase 1520 |
Links
(PDF) GRiDCase 1500 Series Hardware Technical Manual (October 1988)⤷(001500-50) Scanned by C. Singleton, OCR and Indexing by ClassicBits
(PDF) GRiDCase 1500 Series Hardware Service Course (May 1988)⤷(965018-00) Scanned by C. Singleton, OCR and Indexing by ClassicBits
(PDF) GRiDCase 1550sx Service Manual (June 1991)⤷(001500-60) Scanned by C. Singleton, OCR and Indexing by ClassicBits
GridCase 1520 Specifications
Brand Name | Grid | Series | Grid GridCase 1500 Series |
Class | Portable, Laptop, Semi-Rugged | Date | 10/26/1987 |
Price (MSRP) | $3495.00 - $4695.00 | FCC | ID: F2J1520 |
Size | 2.3 x 15 x 11.5 (in) 5.8 x 38.1 x 29.2 (cm) | Weight | 12.5 lbs (5.7 kg) |
CPU | 80C286 at 10 Mhz | RAM | 1 MB standard 8 MB max 8 x 30 pin SIPP sockets |
Display |
| Video |
Internal VGA on some models only. |
Mass Storage | 3.5" IDE HDD 3.5" JVC HDD 20,40,100 MB Capacity | Removable Storage | 3.5 1.44 |
BIOS ROM | Phoenix 32 KB EPROM 2 x 27C128 DIP-28 | Application ROM | 256 KB (total) EPROM 2 DIP-32 socket(s) Some docs say 512k total, No AppRom on VGA models |
Keyboard | 72 keys | External Ports | 1-DB9SERIAL, 1-PARALLEL, AT-KEYBOARD, RGB or VGA-VIDEO, Ext. FDD-OTHER1, RJ11/Phone-OTHER2 |
Power Req. | Input 9 - 18 Volts Barrel Plug connector PSU model 34170 60W 16.25V 3.7A | Battery | 32111 16.25V 3.7Ah NiCad |
Operating System | GRID MS-DOS 3.3 | System Software | CONF1520.EXE, DEVICES.EXE, EMM.SYS, GRIDSCAN.EXE |
NOTES: |
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A note about GridCase 1500 series ROM capacity...
Some GRiDCase owners manuals and sales brochures incorrectly state 512KB capacity. The correct total should be 256KB (Two 128KB EPROMs, as stated in the hardware reference manual). This limit is because ROMs are bank switched into the display memory area (A0000h-B8FFFh) which is 128KB in size.
ClassicBits
GridCase 1500 series computers have two Application ROM sockets which can accept 28 and 32-pin chips in sizes from 32KB to 128KB each (256KB maximum total). Models with VGA graphics do not support ROM. Also, the GRiD ROM Subsystem is only supported by specific versions of GRiD MS-DOS.Some GRiDCase owners manuals and sales brochures incorrectly state 512KB capacity. The correct total should be 256KB (Two 128KB EPROMs, as stated in the hardware reference manual). This limit is because ROMs are bank switched into the display memory area (A0000h-B8FFFh) which is 128KB in size.