1571 Service Manual Preliminary 314002-04 (1986 Oct), serwisówki
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SERVICE MANUAL
1571 DISK DRIVE
Preliminary
OCTOBER 1986 PN-314002-04
Commodore Business Machines, Inc.
1200 Wilson Drive, West Chester, Pennsylvania 19380 U.S.A.
Commodore makes no expressed or implied war-
ranties with regard to the information contained
herein. The information is made available solely on
an as is basis, and the entire risk as to quality and
accuracy is with the user. Commodore shall not be
liable for any consequential or incidental damages
in connection with the use of the information con-
tained herein. The listing of any available replace-
ment part herein does not constitute in any case
a recommendation, warranty or guaranty as to
quality or suitability of such replacement part.
Reproduction or use without expressed permission,
of editorial or pictorial content, in any matter is
prohibited.
This manual contains copyrighted and proprietary information. No part
of this publication may be reproduced, stored in a retrieval system, or
transimitted in any form or by any means, electronic, mechanical,
photocopying, recording or otherwise, without the prior written permis-
sion of Commodore Electronics Limited.
Copyright © 1986 by Commodore Electronics Limited.
All rights reserved.
TABLE OF CONTENTS
TITLE
PAGE
SPECIFICATIONS
1
PRODUCT PARTS LIST
2
MEMORY MAP
3
GATE ARRAY CIRCUIT THEORY
4
GATE ARRAY BLOCK DIAGRAM
6
IC PIN ASSIGNMENTS
8
DETAIL PARTS LIST
17
BOARD LAYOUT
18
SCHEMATIC
19
COMMODORE 1571 DISK DRIVE
SPECIFICATIONS
GENERAL FEATURES
5-1/4" Floppy Disk Drive
Supports Fast Data Transfer Rates
Two Serial Ports for Adding Peripherals
Software Disk Format Selectable
Comes with Serial and Power Cables Compatible with Commodore
128, Commodore 64, and Plus/4 Computers
SYSTEM FEATURES
Built-in 6502 Microprocessor
2K RAM
32K ROM
Built-in DOS
Program Load Transfer Rates
300 cps under C64 Control
5200 cps Max under C128 Control (Burst Rate)
5200 cps Max under CP/M® Control (Burst Rate)
MEDIA
CHARACTERISTICS
Commodore Standard
(GCR)
Double Sided/Single Density
350K Storage Capacity (Formatted)
Compatible with 1541 Disk Drive
Supports Program, Sequential, Relative and User Files
CP/M Compatible
(MFM)
Single or Double Sided/Double Density Formats
Up to 410K Storage Capacity (Formatted)
Read/Write Compatible with Kaypro®, Osborne®, IBM®, CP/M®
86, Epson® QX-10 and Numerous Other Formats
Supports Most CP/M® Files
INPUTS/OUTPUTS
Two Serial Ports
Power Connector
POWER REQUIREMENTS
117 Volts AC, 60Hz, Less than 25 Watts
Specifications subject to change without notice.
CP/M is a registered trademark of Digital Research, Inc.
KayPro is a registered trademark of Kaypro, Inc.
Osborne is a registered trademark of Osborne Computer Corporation.
IBM is a registered trademark of International Business Machines
Corp.
Epson is a registered trademark of Epson Corporation.
PARTS LIST
1571
PLEASE NOTE: Commodore part numbers are provided for reference only and do not indicate the
availability of parts from Commodore. Industry standard parts (Resistors, Capacitors, Connectors) should be
secured locally. Approved cross-references for TTL-chips, Transistors, etc. are available in manual form
through the Service Department. Unique or non-standard parts will be stocked by Commodore and are
indicated on the parts list by a "C".
TOP CASE ASSY
Top Case
C 310508-01
BOTTOM CASE ASSY
Bottom Case
PCB Assembly
Power Supply Assembly
Drive Assembly - Newtronics
Drive Assembly - Alps
PCB Shield
PCB Insulation Sheet
C 310509-01
C 310420-01
C 250772-01
C 252083-01
C 252092-01
C 252069-01
C 252070-01
FRONT CASE ASSY
Front Bezel - Alps
Front Bezel - Newtronics
Disk Eject Lever
LED Assembly
LED Clip
Nameplate
C 252086-01
C 310507-01
C 252050-01
C 250754-04
C 252013-01
C 310411-01
ACCESSORIES
Users Manual
Demo Disk
Power Cord
C 252095-01
C 252093-01
C 252164-01 sub:
C 903508-04
C 252159-01 sub:
C 1540027-01
6-Pin Din Cable
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