Tandon TM-100-1 Flexible Disk Drive

8/13/2019 Tandon TM-100-1 Flexible Disk Drive

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TMIOO l TMIOO

FLEXIBLE DISK DRIVES

PRODU T SPECIFICATION AND USER S MANUAL


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P/N 179024 001Notice June 15 1982

OEM OPER TING ND SERVICE M Nu LTM100 3 3M 4 ND 4M DISK DRIVES96/100 TR KS PER IN H

TO LL HOLDERS OF P/N 179024 001:1. Page 2 13 Sect ions 2 .6 th rou gh 2.6 .1 .11 has been revised andsupersedes the one in the manual.2. Page 2 14 Sect ions 2.6 .2 through 2.6 .2 .7 has been added to themanual.3. Retain th i s not ice and i n se r t before the table of contents .4. Holders o f P/N 179024 001 are requested to verifY t ha t the pagechanges and addi t ions ind ica ted here in have been entered .This issuance i s a separa te pUblicat ion. Each not ice i s to bere ta ined un t i l the OEM o p r t ~ n g and serv ice manual is completelyrev ised .

Prepar ing Group:P ro du ct S u pp or t Tandon Corporation


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TMIOO-l TMIOO-25-l/4-INCH FLEXIBLE DISK DRIVES

TRACKS PER INCHPRODUCT SPECIFICATION AND USER S MANUAL

l l CORPORATION2 32 PRAIRIE STREETCHATSWORTH CALIFORNIA 91311

COPYRIGHT 1984 TANDON CORPORATION


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SectionNumberSECTION 1

TitleGENER L DESCRIPTION

CONTENTSPage

Number

1.11.21.3

1.4 5SECTION 2

2.12.22.32.4SECTION 3

3.13.23.3

3.4

3.53.6

3.7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Scope OfThe Documen t 1 1Purpose OfThe Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Major Fea tu r e s 1-1

Write Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Daisy ChainCapab i l i t y 1-1Internal Trim Era s e 1-1Industry Standard Interface Compa t ib i l i ty 1-1Track Swi t c h 1-2Index Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 ctivityIndicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Fwictional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Physical Description 1 2PRODUCT SPECIFICATIONSIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 2 1Electrical and Operational Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Reliability Spec if ica t ions 2-1Environmental Specifications 2-1OPERATIONIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Unpacking The Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Preinstallation Checkout 3-1Mounting The Drive 3-1

Dust Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2Cooling : 3-2Interface Connections 3-2

Input Control Lines 3-2Output Control Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Typical Interface Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

D. C. Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Drive Address and Option Patching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 a Through DS3 Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5MX Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7HS an d HM Jumpers 3-7Power Save Option . . . . . . . . . . 3-7Side Select WI 3-7Write Flip-Flop Control W2, W3 3-7Write Protect Control W4, W5 3-7 ctivityL.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 ProtectTab 3-9Diskette Handling and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9


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ILLUSTR TIONS

FIGURES

igureumber1 12 13 13 23 33 43 5 6

TitleDisk DriveDisk Drive Outline Drawing Electrical Interface Characteristics Control an d Data Timing Requirements Logic Board With Programmable Shunts and Option Patching LocationsRecording MediaWrite Protect TabDiskette Handling and Storage

T LES

Pageumb1 32 23 5 6 83 103 113 12

Tableumber2 12 22 33 13 2

PageTitle umbeElectrical and Operational Specifications 2 3Reliability Specifications 2 4Environmental Specifications 2 5Drive Interface Lines and Pin ssignments 3 2D C Power Connector Pin Assignments 3 5

11


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SECTIONGENERAL 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 ar e 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) t racks per inch. T heTMI00 l is a s i n g l e s i ~ recording deyice. TheTMI00 2 is a double- sided recording device.Both drives ar e capable of reading and writingin single density format on a diskette using aproprietary read/write head patented byTandon. The dr ives have a doubl e 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.

SCOPE OF THEDOCUMENT

This document contains the major featuresphysical and functional specifications, mountingand power requirements the interface an d typica l timing characteristics of the TM100-1 andTMIOO-2 drives.

2 PURPOSE OF THE DRIVE

The TMI00 l a nd TMI00-2 drives are rotat ingdisk memories designed for random access data

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entry storage and retrieval applications.Typical applications include intelligent terminalcontrollers, microcomputers word processingsystems data communication systems, errorlogging, program loading, and point-of-saleterminals.

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 necessa ry to daisy chain amaximum of four units at the user s option. Thelast drive on the daisy chain terminates theinterface. Th e terminations ar e accomplished bya resistor array plugged into a DIP socket.

INTERNAL TRIM ERASE

The drive provides the control signals necessaryfor proper t rim erasure ofdata.

INDUSTRY STANDARD INTERFACECOMPATIBILITY

The drive is compatible with controllers that usean industry standard interface.


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TR CK SWITCH

The Tra ck 0 switch is provided to generate alogic level at th e drive interface indicating th eread/write head is positioned at th e outermosttrack.

INDEX SENSOR

An index sensor is provided to generateelectrical pulses a t the drive interfacecoincident with sensing Index/Sector holes onth e diskette.

CTIVITY INDIC TOR

An activity indicator, located on th e front panel,is automatically illuminated when th e d riv e isselected.

4 FUNCTION L DESCRIPTION

The drives ar e fully self-contained an d requireno o p er at or i nt er ve nt io n during normaloperation. Each drive consists of electronics togenerate an d interpret co nt rol sig nals, a headpositioning system a read/write system an d aspindle drive system.When th e front latch is opened, access is

p r o v ~ r insertion of a diskette. The disketteis held in place by plastic guide rails. It s locationis ensured w hen th e diskette is inserted until aback stop is encountered.Closing th e front latch ac tivate s the conec la mp in g m ec ha ni sm resulting in accuratec en te ri ng a nd clamping of the diskette. Th edrive hub is held at a constant s peed of 300 RP Mby a s ervo-control led D C motor. Th e headsremain in contact with the recording mediauntil the front latch is opened.The heads are positioned over th e desired trackby means of a four-phase stepper motor/band

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assembly and its associated electronics. Tpositioner uses a one-s tep rotation t o c au se atrack linear movement.Data recovery electronics include a lo w- leread amplifier, differentiator zero crossodetector an d digitizing circuits. No ddecoding capabilities ar e provided.The drive ha s th e following sensors:

A Track 0 s wi tc h d et ec ts whenhead/carriage assembly is positionedTrack

2 An index/sensor is positioned to genera digital signal whe n an index/senhole on th e diskette is detected.3 A w rite pr otect switch disables th e wrelectronics when a w ri te p ro te ct ta b

applied to th e diskette.

5 PHYSIC L DESCRIPTION

A representative drive is sh ow n i n F ig ur e ITh e drive ca n be mounted in a verticalhorizontal plane. H ow ever, th e logic circboard must be on th e uppermost side when tdrive is mounted horizontally.T he s pi nd le is belt driven by a D C motor wan integral tachometer. The servo contcircuit an d t ach ometer control th e sp eed o f tspindle.Th e read/write head assembly is positioned bsplit band positioner mounted to a steppmotor. The read/write head s) is a glass-bondferrite/ceramic structure with a life expectanof 20,000 operating hours.The e lec tr on ic c om po ne nt s o f th e drive amounted on tw o printed circuit boards. Th e logcircuit board is mounted above th e chassis. Tspindle motor control circuit board is mountat th e rear of th e chassis. Power an d i n terfasignals ar e r ou te d t hr ou gh connectors pluggdirectly into th e logic circuit board.


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FRONT P NEL

FRONT L TCH

CTIVITYINDIC TOR

LOGIC CIRCUIT BO RD

CONE SSEMBLY

FIGURISK RIV

D C DRIVE MOTOR

RE D WRITE HE D SSEMBLY

RESISTOR RR Y

STEPPER MOTOR

DRIVE CH SSIS

SPINDLE SSEMBLY


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SECTION 2PRODUCT SPECIFICATIONS

INTRODUCTIONThis section contains the mechanical electrical reliability an d environmental specifications for theTM100 1 and TMIOO 2 drives.

2.1 MECHANICAL SPECIFICATIONSThe physical dimensions of the drive are located in igure 2 1.

ELECTR JCAL AND OPERATIONAL SPECIFICATIONSThe electrical and operational specifications are located in Table 2 1.

3 RELIABILITY SPECIFICATIONSThe reliability specifications are located in Table 2 2.

4 ENVIRONMENTAL SPECIFICATIONSThe environmental specifications are located in Table 2 3.

a n a D n CORPORATION CH TSWORTH CALIFORNIA 9 32 1

179059 001R V A


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86 2 B4 MM I

18 714750MMI

: 1 217925 MM

l f

0.061 52 MMSERVO R U TBOARD

I

0.131330MM61152MM

12038 MM r

.751119685MM

I I 179I i t . ~ ~ ~ ~I I 1 87I I 14750MMI 1 t

19 J I 58 71483MMI 1 ~ 1 1 4 9 1 0 M M I

291737 MMI _ .._ _ _ j33 818585 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

an ionCORPORATION CHATSWORTH CALIFORNIA 91311 179059 001REV A2 2


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Media

TABLE 2 1ELECTRICAL AND OPERATIONAL SPECIFICATIONS

ANSI-compatible, 5-1/4-inch disketteMedia Life for reference onlyTracks Pe r InchTracks Pe r Drive

TMIOO-lTMIOO-2

Track SpacingHead LifeDisk Rotational Speed

v e r g ~ Rotational LatencyInstantaneous Speed Variation ISVMotor Start TimeMotor Stop TimeSeek Time, track to trackHead Settling TimeAverage Track Access Time,including head settling timeTypical Recording ModesDa ta Transfer RateFlux Reversals Per Inch FRPD,inside track

Both Models, Side 0TMIOO-2, Side 1

64 x 10 passes per track48 TPI both drives

40 tracks80 tracks0.529 millimeters 20.8 milinches20,000 media contact hours300 RPM 1.5 percent100 milliseconds 3 percent250 milliseconds, maximum150milliseconds, maximum5 milliseconds15 milliseconds

75 millisecondsFM, MFM, MMFM250,000 bits pe r second, double density

5,535 FRPI5,877 FRPI

n d o n CORPOR TION CHATSWORTH CALIFORNIA 9 32-3

179 59 1R V A


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TABLE 2-1 CONTINUEDELECTRICAL AND OPERATIONAL SPECIFICATIONS

Unformatted Recording CapacityTM100-1TM100-2

D Voltage and CurrentRequirements 12 volts D. Power

5 volts D Power

Shipment

250 kilobytes per disk500 kilobytes per disk

12volts 0.6 volt, 900 milliamperesaverage, 100 millivolts peak-to-peakripple.5 volts 0.25 volt, 600 milliamperesaverage, 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 RELIABILITY 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 FailuresMean Time To Repair

One in 109 bitsOne in 1012 bitsOne in 106 seeks8,000 hours, 25 percent duty cycle30 minutes

, a n a []n CORPOR TION CHATSWORTH CALIFORNIA 913112-4

179059-001REV A


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2 .6

9 6 / 1 0 0 TP I

TR K 00 SENSOR HE K ND DJUSTMENTThe T r a c k 00 s en so r p ro vi de s a s ignal t ha t i de n t i f i e s T r a c k 00 to th elogic e lec t ron ics . Th e logic e lec t ron ics d isab le t h e s tep ou tfunc t ion when T r a c k 00 i s re a c h e d . In addi t ion a T r a c k 00 s igna l issen t to the con t ro l l e r on P in 26 o f th e i n t e r f a c e .2 .6 .1 .

2 .6 .1 .1

2 .6 .1 .2

2.6 .1 .4

2 .6 .1 .62 .6 .1 .7

2 .6 .1 .8

2.6 .1 .112.6 .1 .12

2.6 .1 .13

2.6 .1 .14

T r a c k 00 S e n s o r Check

S e t up a d u a l - c h a n n e l wideband osc i l loscope as f o l l o w s :Ch an n el A T e s t Poin t 1 ; Ch an n el B T e s t Poin t Ground: T e s t Point 10Read Diffe ren t i a l ly : A plus B B inver tedTime Base: 20 mil l i seconds p e r div is ionE x te rn al T ri gg er : ~ t Point 7 posi t ive edgeVer t ica l D i s p l a y : 0 .1 v o l t p e r div is ionA pp ly pow er t o th e d r i v e .Inse r t a Cats Ey e a l i g n m e n t disket te into th e dr ive .Close th e f ron t d o o r.S t e p th e car r iage to th e rad ia l a l i g n m e n t t r ack .Confirm th e posi t ion by o b s e r v i n g the Cats Ey e pa t t e rn .S e t up th e osc i l loscope to m o n i t o r th e TTL s igna l a t IC4BP in 9 o r a t P11 P in 2.S t e p th e car r iage b a c k to T r a c k 0 1 .Ensur e t ha t th e s igna l a t T r a c k 01 i s a t l e a s t 2 .5 vo l t s .S te p th e car r iage o u t to th e rad ia l a l i g n m e n t t r ack .S t e p the car r i age b a c k to T r ac k 02 .V e r i f y t ha t th e logic l eve l a t IC4B P in 9 is less t h a n0 .8 vo l t .I f a l l of th e above c h e c k s are s a t i s f a c to ry no a d j u s t m e n ti s requi red .I f one o f th e above c h e c k s i s unsa t i s fac to ry p e r f o r m th eTrack 00 a d j u s t m e n t p r o c e d u r e .

2-13


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2.6 .22 6 2 1

2 6 2 2

2 6 2 3

96/100 TPI

Track 00 Sensor Adjustment Procedure

Loosen the re ta ining screw on the base of the Track 00bracketRetighten the re ta ining screw s l i gh t ly to provide somef r i c t ion on the bracketRotate the Track 00 adjustment screw located a t the rearo f the chass i s counterc lockwise as fa r as t wil l gowithout forcing t

2 6 2 4 Step thealignmentTrack 00.carr iage backt r ack taking to Trackcare not 1 from the rad ia lto res tore t back to

2 6 2 5

2 6 2 62 6 2 7

Rotate the Track 00 adjustment screw clockwise veryslowly un t i l the s ignal a t IC4B Pin 9 is a t l e a s t 2.5vol t s a t Track 01 and less than 0 .8 vo l t a t Track 02.Retighten the re ta ining ?crew.

\Repeat Steps 2 6 1 5 through 2 6 1 14 to ensure t ha t thecor rec t se t t ing has been a t t a ined

2 14


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SECTION 3OPERATION

INTRODUCTION 3 Remove the cardboard shipping insertand retain for future shipment.This section contains information on how tounpack check out install and operate theTMIOO-l and TMIOO 2 drives.

3 UNPACKING THE DRIVE

4 Ensure the front panel is secure.5 Ensure the drive belt is in place.6 Manually rotate the drive hub. shouldrotate freely.7 Ensure both circuit boards are secure.

The drives are packaged in protective containersto minimize th e possibility of damage duringshipment. The following list is the recommendedprocedure for unpacking the drive.

Place the container on a flat worksurface.

2 Remove the upper half of the container.3 Remove the drive from the lower half of

the container.4 Check the contents of the containeragainst the packing sli p5 Investigate the contents of the containerfor possible damage.6 Notify the carrier immediately if any

damage is found.

3 2 PREINSTALLATIONCHECKOUT

Before applying power to the drive the followinginspection should be conducted:

Check to ensure the front latch opensand closes.

2 When the latch is moved to an open posi-tion the head arm raises.

3 1

8 Ensure the connectors are firmly seated.

MOUNTING THE DRIVE

The drive has been designed to be mounted hori-zontally or vertically. When mounted horizon-tally 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 in-stalled in either plane horizontal or verticalonly.two mounting screws are required to secure-ly 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. addi-tion it is recommended that mounting schemesinclude no more than two mounting surfaces.The drive is manufactured and tested with somec ri ti ca l i nt ernal al ignmen ts that must bemaintained. Hence it is important that themounting hardware not int roduce significantstress on the chassis.


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DUST COVER

The design of an enclosure should incorporate ameans to prevent contamination from looseitems e.g. dust l int 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 con-ditions. When the drive is mounted so the compo-nents have access to a free flow of air normalconvection cooling allows operation within thespecified temperature range.When the drive is mounted in a confined envi-ronment ai r flow must be provided to maintainspecified air temperatures in the vicinity of themotors printed circuit board and diskettes.When forced ai r is used ai r flow must be direct-ed outward from the drive. Do not intake ai rthrough the drive or heads and diskettes.

4 INTERFACE CONNECTIONS

Interface connections for the TMI00 l andTMI00 2 are made via a user supplied thirty-four pin flat ribbon connector 3M Part Number3463 0001 or Amp Part Number 583717 5 usingcontact Part Number 1 583616 1 for twistedpair or it s 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 Cpower 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 3DRIVE INTERFACE LINESAND PIN ASSIGNMENTS

Input Control Lines:Controller To Disk DriveGround Pin Signal

1 2 Connector Clamp3 4 Spare5 6 Drive Select 39 10 Drive Select 011 12 Drive Select 113 14 Drive Select 215 16 Motor 17 18 Direction Select19 20 Step21 22 Composite Write Data23 24 Write Enable31 32 Side Select

Output Control Lines:Disk Drive To ControllerGround Pin Signal

7 8 Index/Sector25 26 Track 027 28 Write Protect29 30 Composite Read Data33 34 Spare

INPUT CONTROL LINESDRIVE SELECT LINES

The Drive Select lines provide a means of selecing and deselecting a drive. These four lineselect one of the four drives attached to thcontroller.When the s ignal logic level is true Clow thedrive electronics are activated and the drive icondi tioned to respond to Step or Read/Writcommands. A Drive Select line mus t rema instable in the true Clow state until a Step o


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Read/Write command is completed. When thes ignal l ine logic level is false high , the inputcontrol lines and output status lines are disabled.The drive address is determined by a j urnperselect on th e 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 it s 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 no t gated with Drive Select.The motor act ivates 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 LINESTWO LINES

When the drive is selected, a true Clow pulse onthe Step line, with a time duration greater than200 nanoseconds, initi ates 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 if the 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 100nanoseconds after it .The access motion is initiated on the trailingedge of the step pulse. The time period betweenconsecutive trailing edges of s tep pulses shouldbe no t less than five milliseconds.

3-3

The drive e lec tronics ignore step pulses wheone of three conditions exists:1 The write enable is true low .2 The direction select is false high , and

the head is positioned at Track 3 The drive is not selected.

COMPOSITE WRITE T

When the drive is se lected, this interface lineprovides the bit serial composite write datapulses that control the switching of the writec ur ren t 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 l ine, a f lux 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 transi-tions, 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 al l 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 forprecompensation, 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 th e selected read/writehead. Data is written under the control of theComposite Write Data and Side Select inputlines. When th e Write Enable line is falsehigh , al l write electronics are disabled.


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When a write protected diskette is installed in adrive, th e writ e electronics are disabled, irrespective of the state of the Write Enable or SideSelect lines.

SIDE SELECT TM1 2

The Side Select interface line defines which sideof a two-sided diskette is u sed for data transfer.A false Chigh level on this line selects theread/write head o n sid e zero, the lower head, ofthe dr ive. A true low) lev el on this line selectsthe read/write head on si de one, the upper headof th e drive.

OUTPUT CONTROL LINESINDEX SECTOR

The i nde x/ se ct or si gna l is a composite of theindex pulse an d sector signals.An index pulse is provided once e ver y revolut ion, 200 mi ll is ec onds n omi na l, to indicate thebeginning of a track to the controller. The leading edge of this signal must al ways be used toensure timing accuracy. The index/sector line remains in the t rue low) state for the duration ofth e 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 i ss ue a Write command when theWrite Protect signal is true low).When the Write Protect l in e is f al se high) , thewrite electronics can be enabled.

COMPOSITE READ T

This interface line t ransmits the readback datato the controller when the dr ive is selected. 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 disketteThe l ea di ng e dge 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 sig nal p ortion appears only whe nusing hard sectored diskettes

TRACK 0

When the drive is selected, the Track 0 interfacesignal when true low), indicates to the controlle r that the read/write head s are positioned atTrack This signal remains true low) until theheads are moved from Track

3 4

Vout False 2.4 volts minimurn opencollector at lout = 250microamperes, maximum


20/53

IIr l II I I

TRUE ~ 1[>0x I:: J : I: 74380R I IL Q ~ V L N T J :I

DRIVER II

5 VOLTS

150 OHMS74LS04 OREQUIVALENT < : {> TRU ETRANSMISSION ILINE 10 FEET III

II RECEIVERI

FIGURE 3 1ELECTRICAL INTERFACE CHARACTERISTICS

3.5 C POWER

D C power is supplied to the drive via a four-pinAMP co nn ect or, J 2, mounted on the circuitboard. The mating connector, not supplie d, isAMP Part Number 1-480424-0, using AMP contact Part Number 606191-1. Pin assignmentsare found in T ab le 3-2. T he c on du ct or s ho ul d b e16-to-18 AWG minimum.

TABLE 3 2 C POWER CONNECTOR

PIN ASSIGNMENTSPin Supply Voltage

1 + 12 volts D C2 12 volts return3 5 volts return4 + 5 volts D C

Pin SignalGround lug 3 /1 6- inc h Chassi s g ro un d f ro mquick disconnect controller

3-5

The chassis should be c onne cted to earth groundto ensure proper o per at io n. T he conduct,orshould be 16-to-18 AWG minimum.

3.6 DRIVE ADDRESS ANDOPTION PATCHING

T he d ri ve address and option patching i s d et er mined by the programmable shunt located at IEon the logic circuit board. The DSO through DS3jumpers determine the drive a ddre ss. The MXjumper is u se d onl y in single drive system s. Se eFigure 3-3.Th e program shunt is AMP Part Number435704-7. The shunt positions can be cu t 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.

SO THROUGH DS3 JUMPERS

When daisy chaining two or more drives to acontroller, the D ri ve S el ec t DS) jumpers patchthe drive select control signal to enable the logicof the proper drive. Normally, al l the shuntjumpers would be cut e xc ept for the DS jumper


21/53

POWER ON I S ~- t 100 MILLISECONDSI MINIMUM IRIVE SELECT ~ -oSMOTOR ON ~ _ _ _ _ l ~

50 0 NANOSECONDS--..../MAXIMUM I

250 MILLISECONDS---...jMAXIMUM I i 200 3 ILLISECONDSINDEX U U . . . . . ~ S sl 1 4 MILLISECONDSrTRACK 0 - - - - - - - - - - - - - - ~ - - - - - - - - - - - - - - - - - \ S ~ ~ -500 NANOSECONDS--.....lMAXIMUM I

WRITE PROTECTIL . . - - - - - - - - - - - - - - s s

DIRECTION

SIDE SELECT ~ J_ I 10 0 NANOSECONDS 1-~ MINIMUM ~ I - - - - - - -- - - - - - - 4 __5 MILLISECONDS--...j ~ 100MINIMUM NANOSECONDS1 r00 NANOSECONDS - - .J 1__ MINIMUMMINIMUM I rS TE P - - - -- - - -- - - -- j -- . LJU SLJr-----

100 NANOSECONDS ,1-1 1 1 rINIMUM ~ ~ 20 MILLISECONDSI MAXIMUMI

WRITE ENABLE L 250 MILLISECONDS ~ II - MINIMUM -iIII 1 I 900 MICROSECONDS i r

390 MICROSECONDS --1 r I IERASEGATE------------- . : .. . . ; Ir----

(TUNNEL ERASE) 200 NANOSECONDS llIIIIII .. . sMINIMUM12100 NANOSECONDS \..-. - 4 MICROSECONDSI MAXIMUM I I

W R l n D ~ 1 0 0 M I C R O S E C O N D S ~ . : . . . . ~ I ~ ~MINIMUM I _I L4 MICROSECONDS r . 8 MICROSECONDS

READ DATA . 1LJLrLr 1 - - - - - - - -250 MILLISECONDS I J L I I 1 MICROSECONDMINIMUM t i r-- 250 NANOSECONDS8 MICROSECONDS

FOR REFERENCE ONLY

FIGURE32CONTROL AND DATA TIMING REQUIREMENTS3-6


22/53

that addresses each individual drive in the daisychain. The terminator resistor pack, RPllocated on the logic circuit board should be insta lled in th e last drive of the daisy chain. Allother drives on the interface must have theresistor pack removed.

WRITE FLIP FLOP CONTROLW2, W3

W2 and W3 control the se t and preset lines ofth e write flip-flop, IC-5C. W2 is installed for thestandard configuration W3 is for special use.

MX JUMPER

The Mul tiplex MX jumper is used only insingle drive systems when the user requires thedrive logics to be enabled at al l times. If thedrive is not selected through the DS jumper andth e MX jumper is not cut the drive logics areenabled but the front panel L.E.D. is not on. TheMX j umpe r mus t be cut in a multiple drivesystem.

W

xW3

x

WRITE FLIP-FLOPCONTROLDisables se t 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 an d HM jumpers 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. CONTROLW6, W7, W9

The Activity L.E.D. may be illuminated by anoptional input line, Jl 4 In Use . Normally,the Activity L.E.D. is controlled with DriveSelect, W6 installed.

POWER SAVE OPTIONWhen shipped from the factory, the drive is configured with a jumper at R51, 0 ohm resistor, forthe TMIOO-l an d 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 th estepper 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:

W4x

W6

W5

x

W7

WRITE PROTECTCONTROLWrite Protect Controlresponds to a write protecteddiskette.Write Protect Control isinhibited.

W9 ACTIVITY L E. D.CONTROL

xSIDE SELECTFor use in single-sided drives,TMIOO-l.For use in double-sided drives,TMIOO-2.

3 7

xx x

Activity L.E.D. iscontrolled with DriveSelect.Activity L.E.D. iscontrolled with N InUse, Jl 4.


23/53


24/53

o oW 5 0 0 0 W 4

..~ _ _ ~ 9 J

R51o oR5 00W 200 0 W 3

W70 0 W6

00

TERMINATORSOCKET 2F

PROGRAMMABLESHUNT SOCKET E - - - . -

LOGIC CIRCUIT BO RD

HS NOTUSED 162 DSO 153 DS1 144 DS2 135 DS3 126 MX 117 SPARE 108 HM NOT USED 9

PROGR MM BLESHUNTSOCKET E

FIGURE3 3LOGIC BOARD WITH PROGRAMMABLE SHUNTS AND OPTION PATCHING LOCATIONS3-8


25/53

NOTEThe 50 oersted level magnetizingforce is reached at a distance ofapproximately three inches froma typical source e.g. motors gen-erators, 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 th e label.

96.5 0.25 MM3.80 0.01 INCH

133.4 MM5.25 INCH

3.56 MMO.14INCH l r

i 6.30 0.25 MMl . . .----- -----h 10.25 0.01 INCHr133.4 MM5.25 INCHL L

SEALEDPROTECTIVEJACKET

L N R ~

133.4 MMr15.25 INCH 1SPINDLEACCESS HOLEHEADAPERTURE

FIGURE 4RE ORDING MEDI

3 10


26/53

WRITE PROTECT TAB

WRITE PROTECT TAB

L FOLD V R BACK OF DISKETTE

3.56 MM r 0.14 INCH)6.30 MMr-------- r 0.25 INCH)f96.5 MM 3.808 INCHES)

INDEX ACCESS HOLE

FIGUR WRIT PROT T T

3


27/53

DO NOT WRITE ON THEJACKET WITH PEN ORPENCIL USE FELTTIPPED PEN

DO NOT TOUCH PRECI-SION S UR FA CE WIT HYOUR FINGERS

TO VOID DAMAGE TOTHE DISKETTE AND TOYOUR DRIVE INSERTDISKETTE CAREFULLYUNTIL THE BACKSTOPIS ENCOUNTERED

RETURN THE DISKETTETO ITS JACKET WHENNOT IN USE

KEEP THE DISKETTE W Y FROM MAG-NETIC FIELDS

DISKETTES SHOULDBE STORED T

10C to 52C50F to 125F

HANDLE WITH CARE;BENDING AND FOLD-IN G MAY DAMAGEDISKETTE

FIGURE 6ISKETTE H N LING N STOR GE

3 2


28/53

814\4

U.5ED ON ASMOA cSc27- 2

1IGUR 61. SCHEMATIC DPCB 25227 (SHEET 1

r-:- . . . . . . : . . . : .-+--=--:. .--+-----l--- ' - t

0252 27t-.JOiES: UNLESS OTHERWISE SPECiFIED-I ALL CAPACITORS ARE ;N ~ 1 C R O : : I ~ P .SOYI +8:)-2002. ALL DiODES ARE IN4:4S3. AL.L.. RESiSTORS ARE IN JHt-v1S 1/4\1% RESISTORS ARE /8W.4 . - 0 - 0 - INDICATES CUT-TRACE O5. -a 0 INDICATES SHORTN6 PlJ6 OPT ~ :f..JDICA1ES SHORTING PL( FACTORY INSTALLED).7. DISTRIBUTE 0.1 CAPACiTORS ON +AND +24 V BUS LINES.8.NPN TRAN3IS-:-0RS ARE PARTOl=C9. PNP TRANSISTJR5 ARE PAR.T OF I P QIO.INDUCTORS APE . 10%.

2

2

TOUl'lANCE UM ESSOTHERWsE NOTED

+24'1R28

MUSTCONFORM TO ENGINeERING _c ES-.o

\3

3

3

IK

4

4

\10

7 U4 R:S6/ b < -- VIK\/\ro--..2;--2_...-+=2 . o : : ; . . o . : . . ; ; y o - - - - _ - - ~ ~ - - 24VR___'ij-_3-+--.-=-:::-;::;--.- __ ir _

8

8

SIDE I CT

S 112 (12179)

I 1 Tt- f c. '2.70I > R' ('3 (2 Ref < . C8 .Lc.'1 CR\ . TP2. W>, < 1 1 4 c - - ~ I C 1.9I ;> 150 0.1 0.1 4.7K < LI 0.1 .1 I . ,A2B o 1_ I IOO)lh 2?>CS,Yo - I '2V,SH iE LD 0 >- .nv 'Ie . ..L - ~ I ' ;R2 ?R3 CI A c........... )1 1 114 10 ::Jb - S22K - 022 A J C4 TPI '- -p/W I r- - - - - : - l CRI L I .. ..: < - ''CRII - ~ R I : 2 RI3 . \ O C ~ F 0.1 CS U l ? ~ ' Z ; - 2 . . 2 - ~ 1 - - - - - 3 1r I> r ~ / w o , , , 4 : I ~ 5 0 Y J O R2.3 ' t= 1550 PF I /I: I 3 ICR2 I J : .> R'3 - = - I 3 3'10 0 I j ~ , : ~ f

SIDE 0 CT I I ~ $4.'67K IC?4 17 \.. 2. 0 / < R2./ 2.4KI , 2 CR3 I 170 T ~ g ~ ~ ~ ~ 16 loO,uh ) ~ ~ 4 ~ ~ ~ S > 10K 9 20F

J ' 4 RI7R20> 5 1 0 ~ Rl5R/W yf 2 d ~ . CRLl lOOK:> 0 IK~ J I I I c. 7 < R 32 ~ c . : --'-----'VV'vt>-n r ' 0 I I D.I )0 K R18 LER ASE 0 r 1'---- '- K \ -I ::' . . . - - - - \ I v \ r - -+ - - - - -.R/WII ~ ~ CRSI I: = '2.00 18,, b:'; I [READ C . H A N ~ ~I ' 4 CR o I 15 YBSr1- . HDIFFIN ~ T P I 6

; ~ :, 5 CRr l I CIO 7 DATA 10 I::;:E I : ~ ~ } C l : ~ : :-------- - --- -- - ----- - ---r----------i R2;24V I S O P [ ~ . V ~ ; ~ : U2 O U T r - - - - + - - + ~ ~ i ~ AI 6 C.RC1.1 I I I 2201 el l PS2 \6Rill RClAr~ I d R . 3 ~ : : ' f LJ3 \62.10-\ IS 22J\. \0 R:..:{ - - I - , - ~ - - . - - - - - - , IS ( ) 10KWRITE. ERA.SE. V I- T v VRE:F YBB ' Ie?? 1 VVV I r--i l ---< -,., 12 S> US 10 \% IDRIVE.R HEAD SElEC.T I 7 ; ~ O K '2 lRE'F l ~ ~ V rbl,r I -l ...~ 13 US US .,,- iH-'J --..--- ....10 i


29/53

AELEASED FDAASS

P.U. (SHT 4)

- READ D.o.TA.> ,- - - - - - SIDE. ZERO ~ T :

2 01'025226,-,1

FIGURE 6-1. S HEM TI DPCB 25227 SHEET 2O

65/66 blank

T O L E ~ U N L E S S~ R W l s e NOTEO

8V838

\0

MUSTCONFORM TO ENGINEERING SPEC

I

oz

3

4

5

5

6

6

7

7

l

8

8

5112(11/80)

___ 3- - - - ~ + ~ ~ ~ v _ ; _ - - - - - . - - - - - - = = - = - = = = = = = = - , : ~ 6 ~ ~ ~ ; ; : ; ~ ~ i ~ T C : o ; o ~ L o c ~ i l J - ~ ~ ~ : - : - : - : - - : : _ ~ : - : = - = ~ . _ : : - : - : : - ~ _ ~ : - : _ : : - : : : - : - _ ~ __ ::-:-::-__: - : : : - : ~ 2 ~ : : - : - 11-v I . : : L . ~ , 4 1 - - - - ---- ..:1:ToB I.',: TP27 ~ 4 J - - J V ; ; - o -0 1. : v, s I ' ~ 6 I , , ~ - v C,,23 + Z . 4 V ---llij-f-2- - - - - ~ 02.52.2ti tx:{, > U' i -? r ~ - - - - - - - - t - - - - - _ - i . . - - - l ~ : ~ 5V 6 +D -330: ' .> MD .';> I ,. - , CR I 00 LOCK-. ,a 12 v,2 '__ \_3 -,U_ :. 2 S50-c.40b u l9 ; ~ 8 . [ \ . 1 1 ~ : 0 0 3 I I A :

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Lr-; .N, -fl----,-r----1-r--, -1- i ~ e - J . _ TR ,< I I ,--------2 NO. 0 08 >53- . . ' _.. - ; , ~ - - - =- ::..:..;: j ~ - - ~ -IQQI 8 ->-1--- _ 18 -5 [N 0 CHG . Q . . - we 8 LJ < - ~ - . - 4 4 ) ~( ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ = = ~ ~ t ~ = = E = = = = = = F = = ~ = ~ = = i ~ = = = = = ~ ~ T . __4 ~ v ~ _ 3 - - - ~ _ Z - _ ~ T E P ~ ~SHT 3) - W YT n ~ . -u 0-- '0

(

+REAO [NABLE 33I \NOEX U:.D 1 \874 l i ? ~ I -.fID _ . _ - -: BT ' y - - - - V V V - I -: - INDE.X LEDS I 8 :: U : - - - - . - - - - - - . , , - - . - - - - - - - -- - - - - - - - - - - - -

I - - - 'C -

: + ,NOCX LED I .1.5 875 f, on r l l .JI I- . . . J ~ -: - : >~ _ ~ ~ ~ ~ O R _ ~ E ~ T _ R O N l c s l 7 :

I -MOIOR ON -(SHT 3) : - DF


30/53

8 7 6 5v

5. 5V

4 3 2 102.522

oIDEZ.ERO

_ _ _ _ _ _ _ _ _ - WRITE DAiA 51-iT I)U\5

UI8

08

147 K4.71 ~ C

MUSTCONFORM TO ENGINEERING SPEC ES 30000-0 '' 'TEIII''l.

- ADHEMCSE DEPTH

R442K ~tR45 - @I 1 ~ 4 4 - PORU4 (SHT'2,3 J 4')

\ 2..\3

3

IK

4

IK7 U4

2>

5

REFERENCE DESIGNATIONSLASi USED USED

C 6CRc3Q III(TP 21

6/ CHASSIS GND

- - - - . 2 ; - - = - - - - - - . - . - - . - . . . . - - .

- - - - . 2 ~ 3 - - - 1 f - - < T ~ = _ . . . . 1 - - - - - -+5Y

l\ D V - - ~ 4Y1 : l 4 ~ 7 .1 C 39 (i) TP \e:T50Y T OI T .2 2 [20 24VR

85112(12/79)

A

6 6 2 blank


33/53

1

. READ DATA

- I N D t X

- T'vvO 5\CED

- iRACl - rJ

TRAC r 1 2 2 2 AI-I

2

-,

21213

\s 110 8C7 VB

38

MUSTCONFORM TO ENGNEERNG SPEC ESTOLER'u/c -UNLESSj)l + ~ : _ - _ I _ _ - - - - - - - . . : : . . . . - - - : = - - _ - _ - - - - -=J 5 - - SIDE. ZERO ~ 1 T : ll t t nr

1VDO

K4G41l'\ 12 -MD- LcD

8

15

::l 5+W P L E D I ~ I - . . : : : - - . V I I \ r - - + - - wP L E D I 3 L . . . : . 2 ~ = 4 ...I

W P D ET .....J1W-'-----I ND EX D ET J_'\JV 12 14 - - -4

COMMO - l ~INDEX DEi . . l m . . . : . 1 5 : : . l . . . . : \ 6 ~ _SUPPLY - J - v R59:J \874 \ ~ ~ ~-r\NOEX L E . D ~ v v v . - - + - -B-INDEX L E O ~ ~ ~ 3 , - -

+ tN DE X LED I I 8;-..:.,----,,\IV\,r--'1 -.J: I SE .N SO R ELEC TRONICslL , _

- - - - - -

slia 11/80

-STE.P

{

- M O i O R ON-( : 'HT 3 - DRI VE SELECT - - - - + - - - - - - - ~ + - - - - + - - - - . . . : . q

-IN USE - - - - - - 44\ TACH

B

A

C

o

6-13/6-14 blank


34/53

D

8 7 6

R.eS 22 .0 . .n . .R.87 >33o.n. >

5-t-5V

R86: 220.0. Rgg330.11.

4 3 2 102524-7

SHi2.

(51-lT I )

} (SHT 2)+ SlOE l..ERC- DIRECTION- ::l IDEZE.RO- \ U5E

U\8

RP Ir - f i VI I: : 47KI >4.7K I

UIZ 04-

MS 45 1 \1 6______________ IUle iI _ -N OTOR ON I3 08 Jr -.,--------+-------l--------------------------- - DR IVE SEL: .C.T

06r ; DRIVE 5E .LECT

-t-5V \4

220/ I . 1 U933 0 I IL I5- IB

U9

OSI- ~ ~ : - _ - - - - - - - - - - - - - - - - - - - - - - + ~ - 2 e a

- SIDE. SELE.C.T OIREC.TION HEAD LOAD- IN USE.

- MOT OR ONc

-WRI TE. GATE - WRITE DAiA SHT I- WRITE DATA

S H T 2 - WRI TE GATE ( HT I J 2 )U\2

i 4

04B 561120

UIS00

- SiE.P ENABLE ]

-DOOR C.LOSIO:D SHT

-CLAMP SPIN

(SHT e - ROY OUT

A

5112 11/80 8 7 6 5 4 3

wcoz

RElEASEO FOA ASSE

1FIGURE 62. SCHEMATIC DIPCB 25247 SHEET 3 OF

6 15 6 16 blank


35/53

8 7 6 5 4 3 2

o

~ J I Y Y L .

IMOiORW \ N \ \j RRCoB 1.IOOK 2N2.907 C51

1 9 =t 1 4 I + c5 5 t 4.7J 1F I~ ~ ~ ~ I ~ I ~ I ~ __ _ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ : : I IR79 ~ K ~ P ~ : ~ I ~ 7 5 4 O 2 < J t;> Q I > > -> L; IS IK A VRU20 I 12 5 0 9 U21 < ~ r : : 13 NE e J . . ; I _ 1V V 1 r - . . ._ +- +l Qi22.222A l..' t I74 _ - D S r 2 I 1 C29 \b /2 R80 TP [4

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36/53

8 7 6 5 4 3 2

l;.'jED ON ASCA OZ524C;- I

I . e . TABLETYPE POSITION ~ ~ ~ ~ ~ vce GN59 2 U I 10 .21 ~ 2 7 8 - o u2 - 51Go270-1 U 3 10 3CA3a:e u4- - -T P G l ~ O b us - -7474 U20 147438 U7,8,IO,I9 14-220/330 u9 14ULlf2ob5S UII - -74D4- Ul a 1416271-1 U\3 I 251420 0 Ul4 I 1i SOO U\S.24- 14 77414- Ull . /4741-5321 U\ 7 \67408 U18; 6 11 (U6) 14-UPC.IOfr3c -

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2

R4 4ZK ?V

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PRODuCTo CASE OI'TH~ . . : . . . . j . ; , - + : - ~ + - - i r H A = O HE S S - t : A : : : : O ~ l J L , U l : : r ~ - - _ + . . . : : . : : . : : ~ ~ ~ ~ ~ : . : . . . . : * ~ - - : ; ; l ;

~ ~ ~ H T r - ; . E S ~ - - ~ : 5 : : :M l E WAX

Rs5IKv vIK

4

7 U4TP41 - PeR14 (SHT2,3 J 4')U4-\2..I _L _,9RII, G O , ( i , 5 , 8 ~ i ~

TP3,S-7,11,1517 - 24

5

Q IIRI02TP 21U2 6J9

REFERENCE DESIGNATIONSLAS USED iJOT USED

G c:56 C50CRc3 CR22

6

R8lOOK...-----l...---'\vAvrv v-- +z ,VRtD .I e3G'>2.41 Z.4K.

CHA SS IS G ND

+5. RI3 RI4, 4 . ~ K 1 7 . 4 ~RI2. IPD 31%

~ . 3 7 K zR US1%

+c:;,y

---- wf--- - J S n - C - 3 - 9 - - - ~ - . - ; : ~ vT t o ~ 1.> . z . L . = 2: . . _ _+=::: : : J . o ~ o / L : : . o ~ ,,,,,- 2.4VR. \ 1 =3: J l _ 5V

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