Tandy 1000 Technical Reference Manual

Tandy 1000
4-1-3. Maintenance Parts Replacement
Technical Reference Manual
It is recommended to replace the wear parts periodically if the FDD
is operated at a specially heavy duty condition or if it is operated
over five years. Periodic replacement is not required for the parts
if the FDD is operated at a normal operation duty.
Table 403 shows all of the maintenance parts. Replace the wear parts
according to the recon@ended replacement cycle. Periodic replacement
is not required for parts without a recommended replacement cycle.
The replacement of the parts should be done according to each referred
item in Table 403.
Notes for Table 403:
(1) Since the parts number versions of PCBA MFD control (C) vary depending
on some factors such as signal interface condition, be sure to confirm
the version by checking the name plate on the actual printed circuit
board.
(2) The head carriage Ass'y are used always in pair with two guide shafts.
The head carriage Ass'y represented by listed parts number in Table 403
includes these guide shafts which parts number is different from that
of a head carriage Ass'y itself without these guide shafts.
(3) The listed parts numbers of the front bezel Ass'y and front lever Ass'y
are those of standard color (black). For designating other color, use
the corresponding parts number.
(4) Periodic replacement is not required for parts without a recommended
replacement cycle. Replace the parts when required such as during
repair.
(5) If two reconunended cycles are listed, the cycle which the parts reach
first should have priority.
- 4003

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