Equipment information
Commodore 1541 Floppy disk drive
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Model:
1541
Date:
1985
Category:
Group:
Description:
External Disk Drive
Information
The C1541 Disk Drive is an external 5-1/4 inch floppy
diskette recorder, offering high-speed and capacity for
programs and data. It is an intelligent
device, containing its own microprocessor, RAM, ROM and
operating systems software for faster speed of throughput
and memory efficiency in the computer
170K of data (formatted) - 35 tracks
5-1/4 Inch floppy disk. Single sided, single density, soft
sectored (double density can be used, but not needed)
Commodore serial interface
Second serial port for chaining a second drive or Printer
MOS 6502 microprocessor - 1 MHz clock
2K RAM, 16K ROM
400 Bytes/sec
Program, sequential, relative, random-access and user
Up to 144 different files per diskette
120 Volts AC, 60Hz - integral power supply with external 1
Amp fuse
Manual Type:
Service Manual
Pages:
37
Size:
774.44 Kbytes (793022 Bytes)
Language:
english
Revision:
Manual-ID:
PN-314002-01
Date:
1985 11 01
Quality:
Scanned document, all readable.
Upload date:
2017 08 04
MD5:
43e7b912eb3653c424230a5b11918296
Downloads:
1155
Information
SPECIFICATIONS
BLOCK DIAGRAM
CARE AND MAINTENANCE
OVERVIEW
FLASH CODE
CIRCUIT THEORY
o
POWER SUPPLY
o
RESET LOGIC
o
CLOCK CIRCUITS
o
MICROPROCESSOR CONTROL OF RAM AND ROM
o
SERIAL INTERFACE
o
MICROPROCESSOR R/W AND MOTOR CONTROL LOGIC
o
READ/WRITE CONTROL LOGIC
o
READ AMPLIFIER
o
WRITE AMPLIFIER
o
POWER UP/DOWN WRITE PROTECTION
o
STEPPER MOTOR CONTROL CIRCUITS
o
SPINDLE MOTOR CONTROL CIRCUITS
TROUBLESHOOTING GUIDE
RESISTANCE CHECKS
CASEWORK/ACCESSORY PARTS LIST
MODEL INDENTIFICATION
DEVICE NUMBER CHANGE
PC ASSEMBLY 1540001
o
BOARD LAYOUT
o
PARTS LIST
o
PIN CONFIGURATIONS
o
SCHEMATIC
PC ASSEMBLY 1540048
o
BOARD LAYOUT
o
PARTS LIST
o
UPGRADE NOTES
o
SCHEMATIC
PC ASSEMBLY 250442, 250446
o
BOARD LAYOUT
o
PARTS LIST
o
IC PINOUTS AND INTERNAL DIAGRAMS
o
SCHEMATIC
POWER SUPPLY ASSEMBLY 154002
o
PARTS LIST
o
TRANSFORMER
o
ASSEMBLY DRAWING
ALPS DRIVE ASSEMBLY
o
PARTS LIST
o
WIRING DIAGRAM AND LAYOUT
o
MOTOR CONTROL PCB SCHEMATIC
NEWTRONICS DRIVE ASSEMBLY
o
PARTS LIST
o
WIRING DIAGRAM AND LAYOUT