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P/N 179024-001Notice 1June 15, 1982
OEM OPERATING AND SERVICE MANuALTM100-3, -3M, -4, AND -4M DISK DRIVES
96/100 TRACKS PER INCH
TO ALL HOLDERS OF P/N 179024-001:
1. Page 2-13, Sections 2.6 through 2.6.1.11, has been revised andsupersedes the one in the manual.
2. Page 2-14, Sections 2.6.2 through 2.6.2.7, has been added to themanual.
3. Retain this notice and insert it before the table of contents.
4. Holders of P/N 179024-001 are requested to verifY that the pagechanges and additions indicated herein have been entered.This issuance is a separate pUblication. Each notice is to beretained until the OEM operat~ng and service manual is completelyrevised.
Preparing Group:Product Support, Tandon Corporation
TMIOO-l, TMIOO-2
5-l/4-INCH FLEXIBLE DISK DRIVES
48 TRACKS PER INCH
PRODUCT SPECIFICATION AND USER'S MANUAL
, anCliiil CORPORATION20320 PRAIRIE STREET
CHATSWORTH, CALIFORNIA 91311
©COPYRIGHT 1984 TANDON CORPORATION
SectionNumber
SECTION 1
Title
GENERAL DESCRIPTION
CONTENTS
PageNumber
1.11.21.3
1.41.5
SECTION 2
2.12.22.32.4
SECTION 3
3.13.23.3
3.4
3.53.6
3.7
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Scope Of The Document........................................................ 1-1Purpose Of The Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Major Features................................................................. 1-1
Write Protect. . . . . .. . . . . . . . .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Daisy Chain Capability....................................................... 1-1Internal Trim Erase.......................................................... 1-1Industry Standard Interface Compatibility................................... 1-1Track aSwitch............................................................... 1-2Index Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Activity Indicator. . . . . . . . . . .. . . . . .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Fwictional Description. . . . . . . .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . . . 1-2Physical Description 1-2
PRODUCT SPECIFICATIONS
Introduction .'. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Electrical and Operational Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Reliability Specifications....................................... .. 2-1Environmental Specifications 2-1
OPERATION
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Unpacking The Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Preinstallation Checkout 3-1Mounting The Drive ~..................... 3-1
Dust Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Cooling : ;....................................... 3-2
Interface Connections 3-2Input Control Lines 3-2Output Control Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Typical Interface Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
D. C. Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Drive Address and Option Patching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
DSa Through DS3 Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5MX Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7HS and HM Jumpers 3-7Power Save Option ~ . . . . . . . . . . 3-7Side Select (WI) 3-7Write Flip-Flop Control (W2, W3) 3-7Write Protect Control (W4, W5) 3-7Activity L.E.D. Control (W6, W7, W9) 3-7Drive Select 3 Enable (W8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9Door Lock Solenoid (WID) 3-9
Diskettes. . . . . . . . . . . .. .. . . . . . . .. . . . . .. . . . .. . . .. . . . . . . . .. 3-9Loading The Diskette 3-9Write Protect Tab............................................................ 3-9Diskette Handling and Storage. . .. . .. .. .. . . . .. . . . . . .. . . . . .. . . . . . . . .. . . . .. . . . . 3-9
ILLUSTRATIONS
FIGURES
FigureNumber
1-12-13-13-23-33-43-53-6
Title
Disk Drive .Disk Drive Outline Drawing .Electrical Interface Characteristics .Control and Data Timing Requirements .Logic Board With Programmable Shunts and Option Patching Locations .Recording Media .Write Protect Tab .Diskette Handling and Storage .
TABLES
PageNumber
1-32-23-53-63-83-103-113-12
TableNumber
2-12-22-33-13-2
PageTitle Number
Electrical and Operational Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Reliability Specifications......................... 2-4Environmental Specifications 2-5Drive Interface Lines and Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2D. C. Power Connector Pin Assignments 3-5
11
SECTION 1
GENERAL DESCRIPTION
INTRODUCTION
This document provides required information inorder to evaluate and incorporate Tandon'l:? diskdrive into a system.
Tandon Corporation's Model Number TMI00-land TMI00-2 are full-feature, 5-1/4-inch, flexible disk drives. They are 'compact data storagedevices that use an ANSI-compatible, industrystandard, 5-1/4-inch diskette.
Model Number TMIOO-l and TMIOO-2 driveseach have forty-eight (48) tracks per inch. TheTMI00-l is a single-sid~d recording deyice. TheTMI00-2 is a double-'sided recording device.
Both drives are capable of reading and writingin single-density format on a diskette, using aproprietary read/write head patented byTandon. The drives have a double density capability when Modified Frequency Modulation(MFM) or other appropriate recording techniqueis used. Encoding and decoding of the data isdone by the user's controller.
1.1 SCOPE OF THEDOCUMENT
This document contains the major features,physical and functional specifications, mountingand power requirements, the interface, and typical timing characteristics of the TM100-1 andTMIOO-2 drives.
1.2 PURPOSE OF THE DRIVE
The TMI00-l and TMI00-2 drives are rotatingdisk memories designed for random access data
1-1
entry, storage, and retrieval applications.Typical applications include intelligent terminalcontrollers, microcomputers, word processingsystems, data communication systems, errorlogging, program loading, and point-of-saleterminals.
1.3 MAJOR FEATURES
WRITE PROTECT
When a write protected diskette is inserted intothe drive, the write electronics are disabled.
DAISY CHAIN CAPABILITY
The drive provides the address selection andgating functions necessary to daisy chain amaximum of four units at the user's option. Thelast drive on the daisy chain terminates theinterface. The terminations are accomplished bya resistor array plugged into a DIP socket.
INTERNAL TRIM ERASE
The drive provides the control signals necessaryfor proper trim erasure of data.
INDUSTRY STANDARD INTERFACECOMPATIBILITY
The drive is compatible with controllers that usean industry standard interface.
TRACK 0 SWITCH
The Track 0 switch is provided to generate alogic level at the drive interface, indicating theread/write head is positioned at the outermosttrack.
INDEX SENSOR
An index sensor is provided to generateelectrical pulses at the drive interfacecoincident with sensing Index/Sector holes onthe diskette.
ACTIVITY INDICATOR
An activity indicator, located on the front panel,is automatically illuminated when the drive isselected.
1.4 FUNCTIONAL DESCRIPTION
The drives are fully self-contained, and requireno operator intervention during normaloperation. Each drive consists of electronics togenerate and interpret control signals, a headpositioning system, a read/write system, and aspindle drive system.
When the front latch is opened, access isprovid~d for insertion of a diskette. The disketteis held in place by plastic guide rails. Its locationis ensured when the diskette is inserted until aback stop is encountered.
Closing the front latch activates the coneclamping mechanism, resulting in accuratecentering and clamping of the diskette. Thedrive hub is held at a constant speed of 300 RPMby a servo-controlled D. C. motor. The headsremain in contact with the recording mediauntil the front latch is opened.
The heads are positioned over the desired trackby means of a four-phase stepper motor/band
1-2
assembly and its associated electronics. Thispositioner uses a one-step rotation to cause a onetrack linear movement.
Data recovery electronics include a low-levelread amplifier, differentiator, zero crossoverdetector, and digitizing circuits. No datadecoding capabilities are provided.
The drive has the following sensors:
1. A Track 0 switch detects when thehead/carriage assembly is positioned atTrack o.
2. An index/sensor is positioned to generatea digital signal when an index/sensorhole on the diskette is detected.
3. A write protect switch disables the writeelectronics when a write protect tab isapplied to the diskette.
1.5 PHYSICAL DESCRIPTION
A representative drive is shown in Figure I-I.The drive can be mounted in a vertical orhorizontal plane. However, the logic circuitboard must be on the uppermost side when thedrive is mounted horizontally.
The spindle is belt' driven by a D. C. motor withan integral tachometer. The servo controlcircuit and tachometer control the speed of thespindle.
The read/write head assembly is positioned by asplit band positioner mounted to a steppermotor. The read/write head(s) is a glass-bonded,ferrite/ceramic 'structure with a life expectancyof 20,000 operating hours.
The electronic components of the drive aremounted on two printed circuit boards. The logiccircuit board is mounted above the chassis. Thespindle motor control circuit board is mountedat the rear of the chassis. Power and interfacesignals are routed through connectors pluggeddirectly into the logic circuit board.
FRONT PANEL
FRONT LATCH
ACTIVITY INDICATOR
LOGIC CIRCUIT BOARD
CONE ASSEMBLY
FIGURE 1-1DISK DRIVE
D.C. DRIVE MOTOR
READ/WRITE HEADASSEMBLY
RESISTOR ARRAY
STEPPER MOTOR
DRIVE CHASSIS
SPINDLE ASSEMBLY
SECTION 2
PRODUCT SPECIFICATIONS
INTRODUCTION
This section contains the mechanical, electrical reliability, and environmental specifications for theTM100-1 and TMIOO-2 drives.
2.1 MECHANICAL SPECIFICATIONS
The physical dimensions of the drive are located in Figure 2-1.
2.2 ELECTR,JCAL AND OPERATIONAL SPECIFICATIONS
The electrical and operational specifications are located in Table 2-1.
2.3 RELIABILITY SPECIFICATIONS
The reliability specifications are located in Table 2-2.
2.4 ENVIRONMENTAL SPECIFICATIONS
The environmental specifications are located in Table 2-3.
, a n a D n CORPORATION, CHATSWORTH. CALIFORNIA 91311
2-1
179059-001REV. A
086121 B4 MMI
18714750MMI
:$1217925 MM)r
I
l--+-----f-
0.06(152 MM)
SERVOCIRCUITBOARD
I1
0.131330MM)
061152MM)
1203
8
20
0
0
MM) r-7.75
1119685MM)
I I 179 32~ ~M)
I i t--.~~~~I I 1 87I I 14750MMI
1 1 t 1019 JI 587
1483MMI 1~(----114910MMI
0291737 MMI _ .._--_._--j-
33818585 MMI
NOTES: 1. DIMENSIONS ARE GIVEN IN INCHES. METRIC EQUIVALENTS ARE IN PARENTHESES.
2. TOLERANCE ON ALL DIMENSIONS ± 0.020 INCH, UNLESS OTHERWISE SPECIFIED.
3. WEIGHT IS APPROXIMATELY 3 POUNDS (1.35 KILOGRAMS).
FIGURE 2-1DISK DRIVE OUTLINE DRAWING
'anCion CORPORATION, CHATSWORTH, CALIFORNIA 91311179059-001
REV. A
2-2
Media
TABLE 2-1ELECTRICAL AND OPERATIONAL SPECIFICATIONS
ANSI-compatible, 5-1/4-inch diskette
Media Life (for reference only)
Tracks Per Inch
Tracks Per Drive
TMIOO-l
TMIOO-2
Track Spacing
Head Life
Disk Rotational Speed
Averag~Rotational Latency
Instantaneous Speed Variation (ISV)
Motor Start Time
Motor Stop Time
Seek Time, track-to-track
Head Settling Time
Average Track Access Time,including head settling time
Typical Recording Modes
Data Transfer Rate
Flux Reversals Per Inch (FRPD,inside track
Both Models, Side 0
TMIOO-2, Side 1
64 x 10 passes per track
48 TPI, both drives
40 tracks
80 tracks
0.529 millimeters, 20.8 milinches
20,000 media contact hours
300 RPM ± 1.5 percent
100 milliseconds
± 3 percent
250 milliseconds, maximum
150 milliseconds, maximum
5 milliseconds
15 milliseconds
75 milliseconds
FM, MFM, MMFM
250,000 bits per second, double density
5,535 FRPI
5,877 FRPI
'andon CORPORATION, CHATSWORTH, CALIFORNIA 91311
2-3
179059-001REV. A
TABLE 2-1 (CONTINUED)ELECTRICAL AND OPERATIONAL SPECIFICATIONS
Unformatted Recording Capacity
TM100-1
TM100-2
D. C. Voltage and CurrentRequirements
+12 volts D. C. Power
+5 volts D. C. Power
Shipment
250 kilobytes per disk
500 kilobytes per disk
+12 volts ± 0.6 volt, 900 milliamperes,average, 100 milli volts peak-to-peakripple.
i~. 5 volts' ± 0.25 volt, 600 milliamperes,average, with less than 100 millivoltspeak-to-peak ripple.
When prepared for shipment by Tandon,the drive meets the requirements ofNSTA preshipment test procedure ProjectlA.
TABLE 2-2RELIABILITY SPECIFICATIONS
Error Rates, maximum, exclusive ofexternal sources, e.g.: electronics,defective and contaminated diskettes
Soft Errors (Recoverable)
Hard Errors (Nonrecoverable)
Seek Errors
Mean Time Between Failures
Mean Time To Repair
One in 109
bits
One in 1012
bits
One in 106
seeks
8,000 hours, 25 percent duty cycle
30 minutes
, a n a []n CORPORATION, CHATSWORTH, CALIFORNIA 91311
2-4
179059-001REV. A
TABLE 2-3ENVIRONMENTAL SPECIFICATIONS
Temperature
Operating, media dependent
Nonoperating
Relative Humidity
Operating, noncondensing,media dependent
Nonoperating, noncolldensing
Altitude
Operating or nonoperating
10°C to 46°C, 50°F to 115°F
-40°C to 71°c, -40°F to 160°F
20-to-80 percent
5-to-95 percent
152.4 meters, 500 feet, below sea level, to15,240 meters, 50,000 feet, above sea level
, a n aDn CORPORATION, CHATSWORTH, CALIFORNIA 91311
2-5
179059-001REV. A
2.6
96/100 TPI
TRACK 00 SENSOR CHECK AND ADJUSTMENT
The Track 00 sensor provides a signal that identifies Track 00 to thelogic electronics. The logic electronics disable the step-outfunction when Track 00 is reached. In addition, a Track 00 signal issent to the controller on Pin 26 of the interface.
2.6.1.
2.6.1.1
2.6.1.2
2.6.1.4
2.6.1.6
2.6.1.7
2.6.1.8
2.6.1.11
2.6.1.12
2.6.1.13
2.6.1.14
Track 00 Sensor Check
Set up a dual-channel, wideband oscilloscope as follows:
Channel A, Test Point 1; Channel B, Test Point 2
Ground: Test Point 10
Read Differentially: A plus B, B inverted
Time Base: 20 milliseconds per division
External Trigger: T~st Point 7, positive edge
Vertical Display: 0.1 volt per division
Apply power to the drive'.
Insert a Cats Eye alignment diskette into the drive.
Close the front door.
Step the carriage to the radial alignment track.·0
Confirm the position by observing the' Cats Eye pattern.
Set up the oscilloscope to monitor the TTL signal at IC4B,Pin 9, or at P11, Pin 2.
Step the carriage back to Track 01.
Ensure that the signal at Track 01 is at least 2.5 volts.
Step the carriage out to the radial alignment track.
Step the carriage back to Track 02.
Verify that the logic level at IC4B, Pin 9, is less than0.8 volt.
If all of the above checks are satisfactory, no adjustmentis required.
If one of the above checks is unsatisfactory, perform theTrack 00 adjustment procedure.
2-13
2.6.2
2.6.2.1
2.6.2.2
2.6.2.3
96/100 TPI
Track 00 Sensor Adjustment Procedure
Loosen the retaining screw on the base of the Track 00bracket.
Retighten the retaining screw slightly to provide somefriction on the bracket.
Rotate the Track 00 adjustment screw, located at the rearof the chassis, counterclockwise as far as it will gowithout forcing it.
2.6.2.4 Step thealignmentTrack 00.
carriage backtrack, taking
to Trackcare not
01 from the radialto restore it back to
2.6.2.5
2.6.2.6
2.6.2.7
Rotate the Track 00 adjustment screw clockwise, veryslowly, until the signal at IC4B, Pin 9, is at least 2.5volts at Track 01 and less than 0.8 volt at Track 02.
Retighten the retaining ?crew.\:..
Repeat Steps 2.6.1.5 through 2.6.1.14 to ensure that thecorrect setting has been attained. .
2-14
SECTION 3
OPERATION
INTRODUCTION 3. Remove the cardboard shipping insert,and retain for future shipment.
This section contains information on how tounpack, check out, install, and operate theTMIOO-l and TMIOO-2 drives.
1I" 3.1 UNPACKING THE DRIVE
4. Ensure the front panel is secure.
5. Ensure the drive belt is in place.
6. Manually rotate the drive hub. It shouldrotate freely.
7. Ensure both circuit boards are secure.
The drives are packaged in protective containersto minimize the possibility of damage duringshipment. The following list is the recommendedprocedure for unpacking the drive.
1. Place the container on a flat worksurface.
2. Remove the upper half of the container.
3. Remove the drive from the lower half ofthe container.
4. Check the contents of the containeragainst the packing slip.
5. Investigate the contents of the containerfor possible damage.
6. Notify the carrier immediately if anydamage is found.
3.2 PREINSTALLATIONCHECKOUT
Before applying power to the drive, the followinginspection should be conducted:
1. Check to ensure the front latch opensand closes.
2. When the latch is moved to an open position' the head arm raises.
3-1
8. Ensure the connectors are firmly seated.
3.3 MOUNTING THE DRIVE
The drive has been designed to be mounted horizontally or vertically. When mounted horizontally, the logic circuit board side of the drivemust be the top side.
Four 6-32 tapped mounting holes are providedon the bottom of the drive, and two 6-32 tappedmounting holes on each side, for attachment touser-supplied mounting brackets. When installed in either plane, horizontal or vertical,only.two mounting screws are required to securely hold the drive in place.
Any mounting scheme in which the drive is partof the structural integrity of the enclosure is notpermitted. Mounting schemes should allow foradjustable brackets or incorporate resilientmembers to accommodate tolerances. In addition, it is recommended that mounting schemesinclude no more than two mounting surfaces.
The drive is manufactured and tested with somecritical internal alignments that must bemaintained. Hence, it is important that themounting hardware not introduce significantstress on the chassis.
DUST COVER
The design of an enclosure should incorporate ameans to prevent contamination from looseitems, e.g., dust, lint, and paper chad, since thedrive does not have a dust cover.
COOLING
Heat dissipation from a single drive is normally15 watts, 51 BTU per hour, under high load conditions. When the drive is mounted so the components have access to a free flow of air, normalconvection cooling allows operation within thespecified temperature range.
When the drive is mounted in a confined environment, air flow must be provided to maintainspecified air temperatures in the vicinity of themotors, printed circuit board, and diskettes.
When forced air is used, air flow must be directed outward from the drive. Do not intake airthrough the drive or heads and diskettes.
3.4 INTERFACE CONNECTIONS
Interface connections for the TMI00-l andTMI00-2 are made via a user-supplied, thirtyfour pin, flat ribbon connector, 3M Part Number3463-0001 or Amp Part Number 583717-5, usingcontact Part Number 1-583616-1 for twistedpair or its equivalent. This connector matesdirectly with the circuit board connector at therear of the drive. The D. C. power connector is afour-pin connector at the rear of the drive. Theinterface description of the connectors, and thelocation of each one, is contained in this section.Interface lines are located in Table 3-1. D. C.power connector pin assignments are located inTable 3-2.
The signal wire harness should be of the flatribbon or twisted pair type, 26-to-28 gaugeconductor, compatible with the connector to beused. The recommended cable length is ten feetmaximum.
3-2
TABLE 3-1DRIVE INTERFACE LINESAND PIN ASSIGNMENTS
Input Control Lines:Controller-To-Disk Drive
Ground Pin Signal
1 2 Connector Clamp3 4 Spare5 6 Drive Select 39 10 Drive Select 0
11 12 Drive Select 113 14 Drive Select 215 16 Motor On17 18 Direction Select19 20 Step21 22 Composite Write Data23 24 Write Enable31 32 Side Select
Output Control Lines:Disk Drive-To-Controller
Ground Pin Signal
7 8 Index/Sector25 26 Track 027 28 Write Protect29 30 Composite Read Data33 34 Spare
INPUT CONTROL LINES
DRIVE SELECT LINES
The Drive Select lines provide a means of selecting and deselecting a drive. These four linesselect one of the four drives attached to thecontroller.
When the signal logic level is true Clow) , thedrive electronics are activated, and the drive isconditioned to respond to Step or Read/Writecommands. A Drive Select line must remainstable in the true Clow) state until a Step or
Read/Write command is completed. When thesignal line logic level is false (high), the inputcontrol lines and output status lines are disabled.
The drive address is determined by a jurnperselect on the logic circuit board. Drive Selectlines 0 through 3 provide a means of daisy chaining a maximum of four drives to a controller.Only one can be true (low) at a time. An undefined operation results if two or more drives areassigned the same address or if two or moreDrive Select lines are in the true (low) statesimultaneously.
MOTOR ON
When this signal is true (low), the drive motoraccelerates to its nominal speed of 300 RPM,and stabilizes at this speed in less than 250milliseconds. When the signal line logic levelgoes false (high), the drive decelerates to a stop.This signal is not gated with Drive Select.
The motor activates momentarily when thefront latch is closed. This motor start functionremains active for approximately five seconds,unless Motor On is in the true (low) condition.
DIRECTION SELECT AND STEP LINES(TWO LINES)
When the drive is selected, a true Clow) pulse onthe Step line, with a time duration greater than200 nanoseconds, initiates the access motion.The direction of motion is determined by thelogic state of the Direction Select line when astep pulse is issued. The motion is toward thecenter of the disk if the Direction Select line isin the true (low) state. The direction of motion isaway from the center of the disk ifthe DirectionSelect line is in the false (high) state.
To ensure proper positioning, the DirectionSelect line should be stable at least 100 nanoseconds prior to issuing a corresponding step pulse,and remain true (low) 100 nanoseconds after it.
The access motion is initiated on the trailingedge of the step pulse. The time period betweenconsecutive trailing edges of step pulses shouldbe not less than five milliseconds.
3-3
The drive electronics ignore step pulses whenone of three conditions exists:
1. The write enable is true (low).
2. The direction select is false (high), andthe head is positioned at Track O.
3. The drive is not selected.
COMPOSITE WRITE DATA
When the drive is selected, this interface lineprovides the bit serial composite write datapulses that control the switching of the writecurrent in the selected head. The write electronics must be conditioned for writing by theWrite Enable line.
For each high-to-low transition on the CompositeWrite Data line, a flux change is produced at thewrite head gap. This causes a flux change to berecorded on the media.
When a single-density (FM) type encoding technique is used in which data and clock form thecombined Write Data signal, it is recommendedthat the repetition of the high-to-low transitions, while writing all zeros, be equal to one-halfthe maximum data rate, 125 kilohertz ± 0.1percent, and the repetition of the high-to-Iowtransitions, when writing all ones, be equal tothe maximum data rate, 250 kilohertz ± 0.1percent.
Host controllers may implement write precompensation circuits that recognize worst case patterns and adjust the write data waveform.
, Although a value cannot be specified for writ~
precompensation, Tandon suggests a value of250 nanoseconds for systems using MFM doubledensity recording format.
WRITE ENABLE
When this signal is true (low), the writeelectronics are prepared for writing data andthe read electronics are disabled. This signalturns on write current in the selected read/writehead. Data is written under the control of theComposite Write Data and Side Select inputlines. When the Write Enable line is false(high), all write electronics are disabled.
When a write protected diskette is installed in adrive, the write electronics are disabled, irrespective of the state of the Write Enable or SideSelect lines.
SIDE SELECT, TM100-2
The Side Select interface line defines which sideof a two-sided diskette is used for data transfer.
A false Chigh) level on this line selects theread/write head on side zero, the lower head, ofthe drive. A true (low) level on this line selectsthe read/write head on side one, the upper headof the drive.
OUTPUT CONTROL LINES
INDEX/SECTOR
The index/sector signal is a composite of theindex pulse and sector signals.
An index pulse is provided once every revolution, 200 milliseconds nominal, to indicate thebeginning of a track to the controller. The leading edge of this signal must always be used toensure timing accuracy. The index/sector line remains in the true (low) state for the duration ofthe index pulse, which is nominally fourmilliseconds.
WRITE PROTECT
When the Write Protect line goes true (low), thediskette is write protected and the writeelectronics are disabled. It is recommended thecontroller not issue a Write command when theWrite Protect signal is true (low).
When the Write Protect line is false (high), thewrite electronics can be enabled.
COMPOSITE READ DATA
This interface line transmits the readback datato the controller when the drive is selected.It provides a pulse for each flux transition detected from the diskette. The Composite ReadData output line goes true (low) for a durationof 1 ± 0.25 microseconds for each flux changedetected from the diskette.
The leading edge of the Composite Read Dataoutput pulse represents the true position of theflux transitions on the diskette's surface.
TYPICAL INTERFACECHARACTERISTICS
Lines between the controller and the drive havethe following characteristics:
Vout True = +0.4 voltmaximum at lout
=:= 48 milliamperes, maximum
Figure 3-1 contains the characteristics of theelectrical interface. Figure 3-2 contains the control and data timing requirements.
The sector signal portion appears only whenusing hard sectored diskettes.
TRACK 0
When the drive is selected, the Track 0 interfacesignal, when true (low), indicates to the controller that the read/write head (s) are positioned atTrack O. This signal remains true (low) until theheads are moved from Track O.
3-4
Vout False +2.4 volts minimurn opencollector at lout = 250microamperes, maximum
II
r-- ---l II I I
+ TRUE _~I---1[>0x I:: J : I
: 74380R I ILEQ~VALENT __J :
IDRIVER I
I
+5 VOLTS
150 OHMS
74LS04 OREQUIVALENT
~<:{>--+TRUE
TRANSMISSION ILINE ~ 10 FEET I
II -=-II RECEIVER
I
FIGURE 3-1ELECTRICAL INTERFACE CHARACTERISTICS
3.5 D. C. POWER
D. C. power is supplied to the drive via a four-pinAMP connector, J2, mounted on the circuitboard. The mating connector, not supplied, isAMP Part Number 1-480424-0, using AMP contact Part Number 606191-1. Pin assignmentsare found in Table 3-2. The conductor should be16-to-18 AWG, minimum.
TABLE 3-2D. C. POWER CONNECTOR
PIN ASSIGNMENTS
Pin Supply Voltage
1 + 12 volts D. C.2 12 volts return3 5 volts return4 + 5 volts D. C.
Pin Signal
Ground lug 3/16-inch Chassis ground fromquick disconnect controller
3-5
The chassis should be connected to earth groundto ensure proper operation. The conduct,orshould be 16-to-18 AWG, minimum.
3.6 DRIVE ADDRESS ANDOPTION PATCHING
The drive address and option patching is determined by the programmable shunt located at IEon the logic circuit board. The DSO through DS3jumpers determine the drive address. The MXjumper is used only in single drive systems. SeeFigure 3-3.
The program shunt is AMP Part Number435704-7. The shunt positions can be cut usingAMP's tool, Part Number 435705. The shunt isinstalled in a DIP socket. At the user's option, itcan be removed and replaced by a DIP switch.
DSO THROUGH DS3 JUMPERS
When daisy chaining two or more drives to acontroller, the Drive Select (DS) jumpers patchthe drive select control signal to enable the logicof the proper drive. Normally, all the shuntjumpers would be cut, except for the DS jumper
POWER ON I----------------------.Sl~------
-, t-- 100 MILLISECONDSI MINIMUM
----IDRIVE SELECT--------------~I)-oS-------
MOTOR ON ~----------------____l,~ ~s-------
500 NANOSECONDS--..../MAXIMUM I
250 MILLISECONDS---...jMAXIMUM I i
200±3 1MILLISECONDS
INDEX ---------------,U U,.....--~S s-S-------
--l 1--4 MILLISECONDS'r-TRACK 0 --------------,~'-----------------\S ~~-----
500 NANOSECONDS--.....lMAXIMUM I
WRITE PROTECTIL..--------------ss ~f-------
DIRECTION
SIDE SELECT ~-------ffJ_--I 100 NANOSECONDS 1-~ MINIMUM ~ I
'--------------4' ~f__---l
5 MILLISECONDS--...j ~ 100MINIMUM NANOSECONDS1 r-
200 NANOSECONDS --.J 1__ MINIMUMMINIMUM I r--
STEP-------------j--.,LJU SLJr-----100 NANOSECONDS ,1-1 1---1 rMINIMUM ~ ~ 20 MILLISECONDS
I MAXIMUM
IWRITE ENABLE L..- 250 MILLISECONDS~ I
I - MINIMUM -iIII'1 S~
I 900 MICROSECONDS" --...i r--390 MICROSECONDS"--1 r-- I I
ERASE GATE-------------.:....;----------" Ir----(TUNNEL ERASE) 200 NANOSECONDS llIIIIII ...1 ~ s
MINIMUM12100 NANOSECONDS \..-.+- 4 MICROSECONDSI MAXIMUM I I
WRlnD~-----1-0-0-M-I-C-R-O-S-E-C-O-N-D-S-~-.:....~-I-·-------~~MINIMUM I _I L
4 MICROSECONDS r- -., 1 8 MICROSECONDS
READ DATA,.-·-------------1LJLrLr~1)--------
250 MILLISECONDS I J- L I I 1 MICROSECONDMINIMUM -....t --i r-- ± 250 NANOSECONDS
8 MICROSECONDS
"FOR REFERENCE ONLY
FIGURE3·2CONTROL AND DATA TIMING REQUIREMENTS
3-6
that addresses each individual drive in the daisychain. The terminator resistor pack, RPl,located on the logic circuit board should be installed in the last drive of the daisy chain. Allother drives on the interface must have theresistor pack removed.
WRITE FLIP-FLOP CONTROL(W2, W3)
W2 and W3 control the set and preset lines ofthe write flip-flop, IC-5C. W2 is installed for thestandard configuration, W3 is for special use.
MX JUMPER
The Multiplex (MX) jumper is used only insingle drive systems when the user requires thedrive logics to be enabled at all times. If thedrive is not selected through the DS jumper, andthe MX jumper is not cut, the drive logics areenabled but the front panel L.E.D. is not on. TheMX jumper must be cut in a multiple drivesystem.
... .
W2
x
W3
x
WRITE FLIP-FLOPCONTROLDisables set and preset lineson the write flip-flop onlyduring internal N Write.
Disables set and preset lineson the write flip-flopcontinuously.
HS AND HM JUMPERS
HS and HM j umpers are not used, and must becut.
WRITE PROTECT CONTROL (W4, W5)
Write Protect Control from the write protectswitch is disabled with W5 installed. StandardWrite Protect Control is enabled with W4installed.
ACTIVITY L.E.D. CONTROL(W6, W7, W9)
The Activity L.E.D. may be illuminated by anoptional input line, Jl-4 CN In Use). Normally,the Activity L.E.D. is controlled with DriveSelect, W6 installed.
POWER SAVE OPTION
When shipped from the factory, the drive is configured with a jumper at R51, 0 ohm resistor, forthe TMIOO-l and TMI00-2 drives. R51 maintains 200 milliamperes of current to the steppermotor whether or not the drive is selected. Maintaining power to this motor prevents the headcarriage from moving when the drive is notselected. The jumper at R51 may be moved toposition R50, which removes the power to thestepper motor when the drive is not sele.cted, fora savings of approximately 3.8 watts per drive.When R50 is used, the user must ensure thetrack location when the drive is reselected.
SIDE SELECT (W1)
For use in double-sided drives:
W4
x
W6
W5
x
W7
WRITE PROTECTCONTROLWrite Protect Controlresponds to a write protecteddiskette.
Write Protect Control isinhibited.
W9 ACTIVITY L. E. D.CONTROL
WI
x
SIDE SELECTFor use in single-sided drives,TMIOO-l.For use in double-sided drives,TMIOO-2.
3-7
x
x x
Activity L.E.D. iscontrolled with DriveSelect.
Activity L.E.D. iscontrolled with N InUse, Jl-4.
DRIVE SELECT 3 ENABLE (W8)
Removal of this jumper allows interface Jl-6 tobe used as an alternate input/output line. W8 isnormally installed.
W8 DRIVE SELECT 3 ENABLEX Allows drive to be selected via Jl-6.
Disables Drive Select 3 line.
DOOR LOCK SOLENOID (W10)
This jumper is used in conjunction with anoptional door lock solenoid. The WIO jumper isnormally not installed.
WIO DOOR LOCK SOLENOIDX Enables door lock solenoid via Jl-2.
Disables door lock circui ts.
3.7 DISKETTES
The TM100-1 and TM100-2 drives use anANSI-compatible, 5-l/4-inch diskette. Diskettesare available with a single index hole or withmultiple (index and sector) holes.
Diskettes with a single hole are used when softsector format is required. Multiple holediskettes provide sector information throughthe use of an index sensor and electronics.
Figure 3-4 illustrates the diskette used with thedrive. This recording media is a flexible disketteenclosed in a protective jacket. The protecteddiskette, free to rotate within the jacket, iscontinuously cleaned by its soft fabric liningduring normal operation.
LOADING THE DISKETTE
The drive is loaded by inserting the diskette,head aperture forward, into the front slot of thedrive. Access to the diskette loading slot isobtained by opening the front latch.
The diskette should be carefully inserted until itis solidly against the back stop.
3-9
CAUTION
Damage to the center of thediskette may result if the door isclosed when the diskette is notproperly inserted. This preventsreliable recovery of the recordeddata.
WRITE PROTECT TAB
The drive is equipped with a write protectswitch assembly. This switch operates inconjunction with a diskette that has a slot cut inthe protective jacket. Figure 3-5 contains thelocation of the slot.
When the slot is covered with an opticallyopaque, self-adhesive tab, the diskette is writeprotected. The tab illust be removed to write onthe diskette. Figure 3-5 contains information onhow to install a tab to cover the slot.
DISKETTE HANDLING AND STORAGE
It is important the diskette be handled andstored correctly so the integrity of the recordeddata is maintained. A damaged or contaminateddiskette can impair or prevent recovery of data,and can result in damage to the read/writehead(s).
Figure 3-5 contains an illustration of thephysical configuration of the diskette. The5.125-inch diskette is oxide-coated, flexiblemylar. It is enclosed in a 5-1/4-inch squareprotective jacket. Read/write head access ismade through an aperture in the jacket. In addition, openings for the drive hub and disketteindex hole are provided.
Figure 3-6 provides some helpful hints on thecare and handling of the drive and diskettes. Inaddition, to ensure trouble-free operation and toenhance the service life of the diskette, thefollowing handling procedures should beobserved.
1. Return the diskette to the protectivejacket when not in use.
2. Avoid exposing the diskette to anymagnetizing force in excess of 50 oersted.
o oW5000W4
,..-----,~_'2_~9J
R51oCJo°R500W20
00W3
W700 W6
00
TERMINATORSOCKET (2F)
PROGRAMMABLESHUNT SOCKET (1 E)-+--.-
LOGIC CIRCUIT BOARD
HS NOT USED' 16
2 DSO 15
3 DS1 14
4 DS2 13
5 DS3 12
6 MX 11
7 SPARE 10
8 HM NOT USED 9
PROGRAMMABLESHUNTSOCKET1E
FIGURE3-3LOGIC BOARD WITH PROGRAMMABLE SHUNTS AND OPTION PATCHING LOCATIONS
3-8
NOTE
The 50-oersted level magnetizingforce is reached at a distance ofapproximately three inches froma typical source, e.g., motors, generators, or transformers.
3. To avoid warping, do not store thediskette in direct sunlight.
4. Do not use a lead pencil or a ballpointpen to write on the label. Use a felttipped pen, and mark lightly on the label.
96.5 ± 0.25 MM(3.80 :!:: 0.01 INCH)
133.4 MM(5.25 INCH)
3.56 MM(O.14INCH) l r
i I 6.30 :±: 0.25 MM
l...-----+-----h"IJ 10.25 ± 0.01 INCH)
I --r133.4 MM
(5.25 INCH)
LL
SEALEDPROTECTIVEJACKET
L1NER~
133.4 MMr15.25 INCH)1SPINDLEACCESS HOLE
HEADAPERTURE
FIGURE 3-4RECORDING MEDIA
3-10
WRITE PROTECT TAB
'- WRITE PROTECT TAB
'L FOLD OVER BACK OF DISKETTE
3.56 MM-lr (0.14 INCH)
6.30 MMr--------+,rJ (0.25 INCH)
f96.5 MM
(3.808 INCHES)
INDEX ACCESS HOLE
FIGURE 3·5WRITE PROTECT TAB
3-11
DO NOT WRITE ON THEJACKET WITH PEN ORPENCIL. USE A FELTTIPPED PEN.
DO NOT TOUCH PRECISION SURFACE WITHYOUR FINGERS.
TO AVOID DAMAGE TOTHE DISKETTE AND TOYOUR DRIVE, INSERTDISKETTE CAREFULLYUNTIL THE BACKSTOPIS ENCOUNTERED.
RETURN THE DISKETTETO ITS JACKET WHENNOT IN USE.
KEEP THE DISKETTEAWAY FROM MAGNETIC FIELDS.
DISKETTES SHOULDBE STORED AT
10°C to 52°C50°F to 125°F
HANDLE WITH CARE;BENDING AND FOLDING MAY DAMAGEDISKETTE.
FIGURE3-6DISKETTE HANDLING AND STORAGE
3-12
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-' I~-~ C+::l +'[. ,38, L ~hi.r3 ~4~2.~~~' K CHAN~e:'- --V ~ J.. DATA..---T---t-----~--- ~ /"(_. -"\RACl< r/JI R I TP2 • • YI CJ 1'\54 ."P-Pi J.L -- -- ---- 10 UIOh 8 --- 5('I 57 6 TO 2" S.'H'" T ~IM .__-!- J.. oJ '-..L: +-TRK,1J LED __5:S7~---Al~.2.fl:1 ,., • L +s<c eL... -T ~------. - 7\ -~EPARATfD (LOe"
I
_--y--___ ~ICi"·{2. r~+--+---LI. -- __, -+__+_~__=J::=: -- "\8 ~L, _TR' ~ cEO -W~ : +.\/-. Y" "NO Ii 1 7' - - SEPARATED DATA
: + -, R5S l' I ['"]'",- ~- _-1: 4~113- 2240~f-· -SECTOR.
: W? LED.
1
.3 5 ~5~v-_.n..__..L: L__..__.~_. ~.T-=====-----~-+---'-' ~ 1"0 8 .L---t- -~.-113:~.UB 11 ----!~.2:_~-I A I 1 11,--===========~-t=========B====== UI5 7." - -INDE<
, _w. L[O 3 2,4 I I - --, - I! WP DET J 3:~\~~~~~======~L1:' - ~ - - -:::.-.T~__=.=.=-=====---~-.j.~-+I-LI--==r- - ~ ~I I -1+~7~V~.:---tF=====r====-"- ----' 1I 'NDex on '_D:? ' -'---===---------I COMMON _~_I_O_!1_8 ..l. 1 ~ R&.>4 II ,---------====-- ---I INDEX DET DI' :;, 41K <3 un -- ---=·'I....J--t-----· '?
I ~UPPLY....J 3;1_'3_._20-"-- L 1 : t ~"--±:~--M'-·-----~l-=-===--=======] 9 0(, '0 1\ U'C.7I + ' 059 _ I ~ _ 2'- I ":..., I '2 02. >3I \NOEX U:.D¢ 1\874 li?~ I -.fID _._-- ~-----: BT'y----VVV- ~ I -
: -INDE.X LEDS I 8 :: U : ~ ~,- ~~o ----.------.,,--.--------..-------------
I ---"'C Q~ -
: + ,NOCX LED I .1.5'875 f,""on rl ' l .JII- ...J~ -:!- : >
~_~~~~OR_~E~T_RONlcsl 7:
I'
~-MOIOR ON-
(SHT 3) :- DF<IVE SELECT
l(~HT 4)
(SHT 3) - CLA'''P ~,... -;:,PIN
B
A
c
o
8 7 6
"'5v
5
... 5V
4 3 2 1
02.522(0--1
o
'<852.20.{;...
R8622.0.fl.
o
051
cCSHT I)
} (SHT 21
... IN U5~
+ SI1)E l.ERO
- DIRECTION
- ,::>IDEZ.ERO
_________ - WRITE DAiA (51-iT I)
U\5
UI8
08
14·7 K4.71'<
6 -
RP\" - ., I ..sv
U\2-----'-1' ~~4()_Sic---1~-----'",
MS
S362.
U9
14
+5V \4r' - .. --..,
'220/1 i U9330
I :L I5- 8
220/330
+5V
40
36
-*_J.±._. ... IO-'- 11;4
)( "<l ..L----D-gr--------+----+-------.---+----._---;::;:;:;..--.---T-------*...!.:1~2-..-----------4-_+-----------UD·--4t~~---------------+-----------o 'n---1----+-----------------+-----------------
- wRliE DATA
- DIRECTION
-WRIIE. GAlE
- SIDt:. SELECT
- DRIVE. SE LECT I
- DRIVE. SEL.ECT 2
(- HE.AD LOAD)
... IN USE:
- MOTOR ON
c
A
B
\987
RELEASED FOR ASSEMBLY
- DOOP CL05ED
TITLE SCrit 1vlAT Ie DIAGRHM
MUST CONFOR'" TO ENGINEERING SPEC ES~
C§ CASE OEPTH
oz
... CLA~"P SPI~
(SHT 2)
'":ru
3
4 UIS---==:r ·\-..:::6:....-____ _ . - WRI\r GAl E (,::> HT I).--------2L.J' L (+READ E.NA8LEi
00 U\2
~.----------:,TE.P E.NABLE
04
14
U\<a
4
:3
00
U\5
tHo
U(o
56
r- ~sI I
I 14 .71<.I
RP\ I I +SVII
I 4.7KL - J
4
7
t CLAMPE.D
- CLAMPED
UIB
- .DOOR oPE N l-w-7:.-.------
8 1
DOOR SWITCH _1_\)7 8 1C0~J1MON
I -... DOOP. OPE.N --.J~-'3=---------
~.-----------1"""'----
c II ~~4"~\37 \4 I
CLlot-'1.?ED SW/TCf-4 ---'V"~ R'?\--- +5VCf),-.;\rvlON I -L I I
:4.7k
+--w-1-:o,------- ..Ja
J(SHT 2) - RDY QUI
8
(SI-i\ 2) - \lV?'IIE. PROTEC.T ------------------------------------------Lw~p'---"""0-8--'
5112 (1\:801
A
B
FIGURE 6-1. SCHEMATIC DIAGRAM,
PCB 25227 (SH EET 3 OF 4)
6-7/6-8 (blank)
8 7 6 5 4 3 2
o
c
A
B
TITLE SCHEMATIC DIAGRAM
. w.u: 0
(51
tT~07:F
• cO %
24VR
TPl4
______ - iACI-1
2
TOLER UNLESSRWISE NOTED
R69II<. 1'70
--- ---- ----
"'UST CONFOfII,l TO ENGINEERIHQ SPfC
Ul
~o
oz
3
9
4
R77lOOK 1"10
2.2. K
R78
\1
7e
DC MOTOR
I[DC MOTORPOWER DRIVER,--_._-
~~~C~~J
5
..---------------+------ ._------'C33
I·I-<1F
_---. 1=c.t3
I C29·~~o3A R7G
lSK +24\1~-- -_-J'\.""""-.... 5bO..n. +J..C3\
R75 C32 If .7/.(.f'
1 ·0\ 3'5Vzo~!,
- - ;-----..I\t\iI\r-----jH----t-·--------------------.
s
D
-= 5ILICO~ IX.174
_._-----------------------------------,
6
R74n.SK1%
101(.
R70~
IO\<' R7\ ~
1<73IIOK1%
+ 24v
1---
RlO? Jc.cK
I
t5V
5
7
C23.002.7
1- C2.4
~ T .0027 -------.::"-1
L < ._
+ Sy -..._--
8S II 2 (12179)
(SHT 2) MOTOR OF F
P.U.
10
12 D S '}
I~ Ui~II C Q 8
r.:-pOR-__+- ...R_13_-t-:=_._ _+_~JJI(~HT I)
I PHASE i r-~E_TEC_T_OR_, [ . --1
L __
B
A
c
o
FIGURE 6-1. SCHEMATIC DIAGRAM,
PCB 25227 (SH EET 4 OF 4)
6·9/6·10 (blank)
1
NOTES: UNLESS OTHERWIS 02524'7- 0SPECIFIED
I. ALL CAPACITORS ARE IN MICROFARADSSOY} +80-20% I
2. ALL DIODES ARE IN4148.3. ALL RESISTORS ARE IN OHMS,I/4W, 5%; D
1% RESISTORS ARE 1/8W.4.-0--0- INDICATES CUT-TRACE. OPTION.5. -0 0- INOICt\TES StlORT1N6 Plll6 OPT' OH6.·~ INDICATES SHORTING PLUG
( FACTORY INSTALLED).7. DISTRII:3UTE 0.1 CAPACITORS ON +5V
AND +24Y BUS LINES.8. NPN TRANSISiORS ARE PART OF CA3083.9. PNP TRANSISTORS ARE PART OF TPQ~906 .
10· INDUCTORS ARE :! 10%.
2
.-
R2.~
34
leB I-t-c '1
R2'2. Ll to. 1 .14.1IOO)lh ":" 35Y
390.1
2D%yy
00'I
<:4IOC-PF 0.\ -'- c5
R2":3 SOV,l?% """S601'F3~o
>l~o~
\.:2- 0./IOO)..lh <:0 R14 R"2.S>
21<. ( 2.K
5678
o
B
c
7
5
8
5
'7, /4
GND
3,8
B14
\4
7414 Ij\(.,
75" 462. U 2.1
LM339 U26
7404 V\2
592N UI
74LSOO U\ S,24-,27
74 32. U 25
I.e. TABLETYPE POSITION 0u¥PD-f~~E
7474 U20,22.
7408 ut8
16271-1 VI:'
74LS32 1 u \7
'51420-0 U\4
220/330 U 0
ICo278-0 U 2.
74L'SOe. U6
CA308'3 u4iPQ3()O(, uS
lCo270-\ U3
UP(I04-3C U2~
ULN20,"S8 U II
B
c
R\ \ ~ ~60
CRce L ~ _
A
U5ED ON ASM-----~~..-
OA 02524-7 - 0
1
FIGURE 6-2. SCHEMATIC DIAGRAM,PCB 25247 (SH EET 1 OF 4)
TOlER"NCE UNLESSOTHERWISE NOTED
10/ ?>~C
MUST CONFORM TO ENGINEERING SPEC. ES 30000-0
"'''TEIII''l.
"-'ADHEM
CI.SE DEPTH
R442K
+~tR45
- @4~2\< I"1~4-----4----- - POR
U4 (SHT'2,3J 4')
\'2..
\'3
3
R~6
IK
4
R~?
IK7 U4
~b
2>
5
REFERENCE DESIGNATIONS
LASi USED ~OT USEDC'36
CRc3Q III( '7~
TP 21
6
/ CHASSIS GND
----'.2;--=-----+-.-.--.-....--.
----'.2~3---1f--<T~=_....1----+--+5Y
----'l\'D-' ")'V--·~+ ... 4Y1:l4~7 .1 C 39 (i) TP \e:
T50Y T· OI T----'.2 2 [20% 24VR
85112(12/79)
A
6·11/6·12 (blank)
D
A
IC
1
-. READ DATA
- INDtX
B
- T'vvO 5\CED
- iRACl"- r/J
TRAC'r<."lO (SHT \)
-WRITE ?RO~c.T (5HT3)
4'0
1
FIGURE 6·2. SCHEMATIC DIAGRAM.PCS 25247 (SHEET 2 OF 4)
Q4Z:>.1.2.22.A
I-I
2
-,
212
13
~ \!s 1
108
C7 VB
38
MUST CONFORM TO ENGINEERING SPEC ES~/
"A~L TOLER'u/c£ -UNLESSj)l'+<ERWISE NOTED
w
~ CASE OEPTH
HARoNess .-
oz
'"IU
3
3
,...------------------+--+-----u-t-O---------------12.
4
4
C~2\
IN4<:>03{4l<)Z4 !STEP tot10"roR DPiVf-R I
1.-.....-<11--_-..._-- .:./.!::... _ .. _b...!c...=+-----------------__++------_---------.-----
~_____, ~~13:::------------...J
U6 Ll6
UI~
1"1\~5 '
33"f" :oTEP
I
1.7 I,.OUT EN
2~:,=S¢ N\3
6 55 \ 1Ul3 '2.'2. 1
N\42.9 '<-'N/-OI)T
2- !ND rj 1'2. ~- - -
-T<;'o3
"IND \
14-- POR '::l
-WPOUT4
- DC. 04-TWO 7
<¥l .. DS SIDED ~ 8uta
34- -+D C\o\6 \0-STEN
:8-iK~
1"7
35+VVP IN
30.. RD
I':'OWl
RS41M
2.1) CI':ly L
5
5
YI c:::JSMH~
Ul2
• TP25
1\
nOl-\1~2=---- _
+u T5 I--L--+---+------:.~===================~ +-----_-_-__--__--_-_- _
TPe:6@
... 145/-55 ~z4=-.----l--+--------i--~~
- RDY OUT (SlT 3)
-M')TO? OfF r--..:=~~~3~8~_I_-----------------------~;[ml----------c;Q"C~.-------::::--::::::----.------- 72,0 ~ r. 5H I
R~:......-+--.....~ - RE,~DY
.,.,:\DY Ow, .::9'- -_-=--=--=--=--=- ., ... . ..... ------"1-------j----:.-r;--;-:;- TR.
~ a )( _ - TRu::; Re>~D'r "
-_ ..~
+ lIQiOR0NO-.IT
6
6
- POI'<
10 ~ ROY \1'\
23
I")
'1 4. U27
:I9JYl O_?9__E>~:_+-_I_+_-------..::....---:=--_-_-----I =J 5 - - SIDE. "ZERO (~1T:')ll-----------+----------t--------t-nr-
.-::::-1
VDO
'K4G41l'\
12 -MD
-<;,TEP
MOTOR Ol"
4-DS
3 _IN USE
16 Ul4TA.CH IN
----,--+--------------I---------rl---+-------,--~--------------+----------_t---------
---_._------,----:-AC.TIVIT'{ Lt'S HT , ClaOR I:OOU'l: SOLE-NOlO DRIVE.R _--..-J~"''5V
: 10 ut9 I I~O.l'l. <::1<.23-----------------1~----,-,----~~r e, _--()+---,
: ~\U25;;8 S5Q--~..:Jo -::!:-- OR L~ l.£2-----------+----·-----ir-- II _ ..------------.-.....-=-L...-'
--'-- \' ~2._ _ _ __ _ _
7
7
-+Sy"lI1
1
III
R5B150n.
2,4
L3 ~IOO.llH S
2,\4
Y2 .r-5MHz c:::J
TRr<.~ DE.T m..:.I ._...
-v R.57
~5 1.~5~OSl.t-TRKrlJ LED -V--vvv----4
8
-TpK 1> LcD
8
15
--, ::l 5+ W PLED I ~'I-..:::--.!VII\r--+-....AI
- wP L E:.D I 3,L...:.2~,=4 ...I
WP DET .....J1W-'-----INDEX DE T J_'\JV 12,.!.::14-!..- -4
COMMO"-l D~
INDEX DEi ..lm...:.15::!.l.!..!.:\6~ _SUPPLY -J-v R59
:J \874 \~~~-r\NOEX LE.D¢~vvv.--+--'"
B-INDEX LEO~ ~~3,-- ~
+ tN DE.X LED I I 8;-..:.,----,,\IV\,r--'1 -.J
: ISE.NSOR ELEC"TRONICslL , _
,------
slia (11/80)
-STE.P
{
- MOiOR ON-
(:'HT 3) - DRIVE SELECT ----+-------~+----+----...:.q
'-IN USE ---+---4
(~HT 4\ TACH
B
A
C
o
6-13/6-14 (blank)
D
8 7 6
• R.eS• 22.0..n..
....-R.87 >33o.n. :>
5
-t-5V
R86: 220.0.
~
Rgg~ 330.11.
4 3 2 1
02524-7-0
D
c
(SHi2.)
(51-lT I)
} (SHT 2)
+ SlOE l..ERC
- DIRECTION
- '::lIDEZE.RO
- 1\\1 U5E.
U\8
RPIr .- - -, f i"5VI I
: ~ • : 4·7KI >4.7K I
L-6--~
UIZ
~04-
MS ~~ 45. 1 \1-'-6______________ 'IUle iI _ ' -N'OTOR ON I
13 08 l'121 'Jr"-.,--------+-------l-------------------·-------- - DRIVE SEL'i:.C.T
06 r----------+----·----------------------- ;. DRIVE 5E.LECT
-t-5V \4r- -~l
220/ I. . 1 U9330
I I
LI
5- I
B
U9
OSI
lB~~~
O~2
-~~':""-_------------'--'--------+~-2'ea
D~3
- SIDE. SELE.C.T
• OIREC.TION
(- HEAD LOAD)
- IN USE.
- MOTOR ON
c
-WRITE. GATE- WRITE DAiA (SHT I)
- WRITE DATA
(SHT 2)- WRITE GATE ($HT I J 2 )
U\2'-- .3i1.1 4-
04
B 5
6
1120
UIS
00
- SiE.P ENABLE]
-DOOR C.LOSIO:D ( SHT <= )
-------------- -CLAMP SPIN
B
(SHT e) - ROY OUT
A A
5112 (11/80)
8 7 6 5 4 3
w~c
oz
RElEASEO FOA ASSE..SlY
199"3
1
FIGURE 6·2. SCHEMATIC DIAGRAMPCB 25247 (SH EET 3 OF 4) ,
6-15/6-16 (blank)
8 7 6 5 4 3 2
o o
c
~JIYYL..,
IMOiORW\N\)\~G5
j R<03
~ IK
+svRg2.~OOk 1.....-_---'
;'-:::'--+1--'-.1--=C-24-:--------+[_9=--i~ 14110 T .002_7._,_20_0_V__, \_O_% ....:B~V
9 I .
L _
I 1. C23
9 \1 I T .002.7, cMV, IO~
Ic
I9 5
(SHT 2) MOTOR OF F
B
A
(5HTV
2 1
FIGURE 6·2. SCHEMATIC DIAGRAM,PCB 25247 (SHEET 4 OF 4)
ciz
34t5678
+5V
w!(Q
5112(12179)
~~l • 8 ~~~-~~~~:~-~==~~C-~=2-'-O~I~~~-R~~=0=~-~-R~~-7~::~-====-~~~~~~-~~~~~~-~~-~~----~--~~~~~-=====~~~~~~-~===-~-~_-::::+-a-~-~--~CH
<$ II III ;;? ! .~;; I ,~~;~~OK 150K > RCoB 1.<T!F8 I ">~: Q5 I>IOOK 2N2.907 C51
':1 9 -=t---1 4 I Q~ + c55 t 4.7J,1F I~~:~~I-------~I~I~__--_-~---~---~---~~~~~~~~~~-::I ~3 ~ IR79 ~K~P~:~ T~~ I'2~9 I~ ~754(O2 < R~? J tD ;;;> Q I > ":> -:> L;' IS IK ::>A VR~ U20 I 12 5 '0 9 U21 ~ < ~'r:: 13 NEe J.-,:..:;I°-_-1'VV1r-..._+-+l Qi22.222A l..'"t" I
74 ~Ir_~22 - r2 D S4- r-2. I 1 C29 \b /2 R80 G~ TP [4720Hr:-"C alB - 74 _ u22 I ~cii"> 'r"'·~~ojAF R7~ ~ j.APCI043C C34 IK ?R82. "RS3 R84 I(SHT.2) '---t~,--uCl""> Q~ - 74 ,% ~--..J\1",5I\rK_...1+24" --"sl'.blVo.ll.-+---lc-3-\-+----:.....je ~ r·047,((F :> 3<J()..(l. "S.\K: 8.2.'5K 1'70
-~ ~ ~~~1 I: - ~ I_"~ ~ ..-~--_~====:~N7-~~7-K~-I~~O~-~~-+II-~-~-o---~-----~-- -_~__~ IIlJ.5K -=I) 1% I
I R69 Ir-~~~ J 7 75M T;~tR71 r,-D (r~~ :~: I 1~~~E~T~~\vERI ~'~ 1%
I • U21 d /0," <;{j-~SQ~'Lr'~~>JIX I~;~~~J-----i-'-- -- ------ ----IL-- -- ---- -- ---- U TITLE SCHEMATIC DIAGR.AM
A
B
6-17/6-18 (blank)
8 7 6 5 4 3 2
A
c
B
l;.'jED ON AS""----CA OZ524C;- I
I.e. TABLETYPE POSITION ~~~~~ vce GND592 UI 10 ..2-1~278-o u2 - 51Go270-1 U3 10 3CA3a:e u4- - ---TPGl~Ob us - -7474 U20 14 77438 U7,8,IO,I9 14- '1220/330 u9 14 7ULlf2ob5S UII - -74D4- Ula 14 7
16271-1 U\3 I 2151420-0 Ul4 I 13i4LSOO U\S.24- ., 14 77414- Ull. /4 ...,741-5321 U\7 \6 87408 U18; 6 11 (U6) 14- ...,UPC.IOfr3c Uc~ - 8LM~39 u26 - 12-74 32. u25 14 77546c. U2..1 3 8 4-
TOI.ERANCE UNLESSOTHERWISE NOTED
IoIUST CONFORIoI TO ElIGINEERINQ SPEC. ES 3llOOO-O
2
R44ZK
+?V
\3
--
~ PRODuCTo CASE O£I'TH
~..:....j.;,-+:-~+--i r.;.HAIl:.:.=;.:OHE:::SS+ -t:A::::"O~lJL,Ul::r"~--_+...::.::.::~~~~~:.:....:*~--:;;l;=_i~~~HTr-;.ES~--~:5: ::MlE WAX
Rs5IKv v
R~S
IK
4
7 U4
~b
TP4
1~----4---- - PeR14 (SHT2,3
J4')
U4-\'2..I _
L ~ _G,9
RII, GO,(i,5,8~i~
TP3,S-7,11,1517 - 24
5
Q IIRI02
TP 21U26J9
REFERENCE DESIGNATIONSLAS! USED iJOT USED
G c:56 C50
CRc3 CR22
6
R8lOOK
...-----l...---'\vAvrv"v-- +z",VRtD .I e3G
'>2.41<. -= 0.1
~R7(> Z.4K.
CHASSIS GND
+5¥
. RI3 RI4,4.~K 17.4~
RI2. IP/D 31%
~.37K zR US1%
+c:;,y
----"wf--I --JSn-C-3-9---~-.-;:~vTto~ 1.01
___->.,z.,L..=2:...-.._ _+=::l:::J.o~o/L::."o~ """,,,,,- 2.4VR.----\ 1--=3:...-...J. l--_+ 5V
TP G5,<:;Cfl,GrISJGI<':',GF
•
8
SHIELD 0
SIIZ (12179)
SHT 2)- TRA,(.\( 40
.-- ...- , --. ........ ........_..- -...---JvRII\~8r__ +Z4V 025~49 -,I 1 1-1' ~ i70 NOTES: Ut-.JLE55 OTHERWISE
>RI C3 C2 R4 ~ C8 l:Cq CRlt? TP2. \W 5PECIFIED-I ' 0.1 0.1 4.7K. : LI J_ 0..1 14.7 INt:..2.4"C. ~ CI.9>150, / '-17. \ I. ALL CAPACITORS ARE IN MICROFARADS.
r-- I R.2'2. lOO)lh -=- 35 V __ I'2V> S% O.">-iJ-6 I ,'R2 -iT ~7 ~ CI 390 _ ,,20% 4~ ~ 50VJ +80-20%
---+--?> 7 >IR~ -I' \ 2.A.LL DIODES ARE lN4148J ( -=- I .? >-;; - v """"'0 I 1 TPI L!.:!: 10 Q -=
b ,12K . 22k - 022 I.-J C4 00~__....., 3.ALLRE5ISTOR5AREINOHMS.V4W,5%j 0Rjw ¢ I I~R/wQil 4 CRI I I ~~CRII ";~RI1 CRI3 \~50VJ(],J. R2.3 'r'~:~% 0.1 Ti~oPf' (i) UI 5q22~ ,I I%RE5ISTORS ARE 1/8W.
I / / ~ \ -=- r1 3~o ~o~ T ~ Jl "13 CI8.l 4-0-0- INDICATES CUT-TRACEOP110N.I ~ I 3 CR1 I .> R5 I 3 -L? RI~PI~ 0.1, 5.-0 D-INDICATES SHORTIN6 PU~ OPTION
SIDE \0 CT I~ I / / I S 4.87K 1c56 ~217 L-z. h O~ ~ R14 R2..S> R2.t -=- • 2.4-1( 6.~ INDICA1ES SHORTING- PLUG.:t/,,2. CR3 I I I % T 82 p~ 2 16 IOOfA C 2.K >2K ( 10K R'--17 R?flt~ 9ifF (FACTORY INSTALLED).
/ ~ I 4 i.U« 5 oJ/ RI5 7. DISTRIBUTE OJ CAPACITORS ().J +5VR/W rj 2.: 1~IEDID01: I CR4 I C. 7 R 3" 200 IOOKL 0 I K AND +24V BUS LINES.
I '- 8.NPN TRANSISTORS ARE PARTCfCA308.3,I ~ >-h 1 R18 '-~ I'---! I C.RIO N _ I 0.1 10K AA 9.PNP TRANSISTORSARE PART OF TPQ3906.
ERASE 0 I -, l./T -'- r---"ZV\OOtv--+------J 10.INDUCTORS ARE :t 10%.
::II~T ! ~----- :~: ~ l [READ CHAN~ - ~r~~I~~ @TPI6
I I,,:) CR7 L I cia 7 DISFFIN DATA 0 I::~:EI !~ ~'fld: J7 ~ :--- ------ --- -- - ----- - ---r----------l R2;24V ISOP~~.V~~~: U2OUTt--::---+--+~f~'A
I ~ ~ "" 6 c..R'1 I I I 220~ R2~ CII 052 16<':78-0L / / 1..-'1 I I ::1.1J. / 100/' 9.531( > L_JL-§-hS2 6ND~
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