Tandy 1000 Owner's Manual

Index
Registers ................... .20.21. 32-35
changing the value .............. 21
checking the value .............. 21
Repeat command .................... ! . 30
Reset command ........................ 3 1
Result codes ..................... 4. 5. 22
mode selector .................... 31
ON/OFF toggle ................. 31
Reverse mode .......................... 29
Schematic ............................... 41
Self test mode ..................... 35. 37
Specifications ........................... 39
Touch-tone dialing .............. 19. 29
redefining the speed of ........ 34
Transmitter carrier signal ........... 31
Troubleshooting ....................... 37
True carrier detect ..................... 5
True data terminal ready ............. 5
Valid dialer codes ..................... 28
Verbal result codes ..... 5. 18. 22. 31
Wall jack ................................ 13
of ....................................... 32
Wait for ring. changing the value
44

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200