nI

TMIOO-l, TMIOO-2I

FLEXIBLE DISK DRIVESI

PRODUCT SPECIFICATION AND USER'S MANUAL

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

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PIN 179059-001 (T5017A 1-84) PRINTED IN USA