NOTE
THE FLOWCHARTS ARE FOR INFORMATION ONLY AND FOR
WARRANTY PURPOSES ANY FAULTY
DRIVE MECHANISM MUST BE RETURNED TO AMSTRAD
FOR REPLACEMENT. SERVICE AGENTS
SHOULD NOT ATTEMPT
TO
REPAIR THE MECHANISM.
SERVICE AGENTS SHOULD NOTE THAT THE HARD DISC
UNITS ARE THE MOST SOPHISTICATED
MECHANISMS AND
SHOULD
NEVER BE OPENED IN A NORMAL ENVIRONMENT. IF
ANY ATTEMPTS
ARE MADE TO OPEN THE HARD DISC UNITTHE GUARANTEE IS THEN
INVALIDATED AND AMSTRAD
TAKES NO RESPONSIBILITY TO EXCHANGE THE DRIVE.
YOU SHOULD NOTE FURTHER THAT THERE ARE TWO TYPES OF
HARD
DISC
UNITS IN USE
i.e. XEBEC AND TANDON. WHEN ORDERING THE REPLACEMENT
UNITS MAKE SURE THAT THE
PART NO. IS
EITHER
171663/X FOR XEBEC DRIVE OR
171663/T FOR TANDON DRIVE.
THIS
INFORMATION APPLIES ONLY TO THE 20MB DRIVES.
AMSTRAD RESERVES THE RIGHT TO AMMEND THE CIRCUIT OR
CHANGE THE COMPONENTS
WITHOUT PRIOR WARNING.
USE RP4 DIAGNOSTICS EXPANSION CARD OR DIAGNOSTIC DISC FOR
FAULT FINDINGS.
FD-3 SERVICE INFORMATION
1. Introduction
This section is for
the maintenance of DFC222A.
1-1
General
The floppy disk drive
is a high precision equipment and requires the following jigs,
tools,
measuring
instruments, and adjustments
when repairing or changing parts.
2. Special
Jigs, Tools and Measuring Instruments
2-1
List of Special Jigs
and Tools
CE diskette
Blank diskette
Test pin connector
Alignment
adjusting jig
O
track adjusting
jig
2-2
List of
Measuring Instruments
Oscilloscope
Brikon
Frequency counter
2-3
CE Diskette (Alignment
Diskette)
This diskette
is used for the following
adjustments and inspection.
(1)
R/W head radial position
(2)
R/W head azimuth
(3)
Index
position
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