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Summary of Contents for TM602S

Page 1: ...DISK DRIVES SEPTEMBER 20 1982 PRELIM RY TANDON CORPORATION 20320 PRAIRIE STREET CHATSWORTH CA 91311 TEL NO 213 993 6644 TWX NO 910 494 1721 TELEX NO 194794 TANDON INTERNATIONAL GMBH AM SUEDPARK 7A D 6...

Page 2: ...teristics 2 3 2 4 Power Cabling 2 3 2 5 Standard Interface 2 3 SECTION III THEORY OF OPERATION 3 1 3 2 3 2 1 3 2 2 3 2 3 3 2 4 3 2 5 3 2 6 3 3 3 3 1 3 3 2 3 3 3 3 3 4 3 3 5 3 3 6 3 4 3 4 1 3 4 2 Intro...

Page 3: ...r Dimensions 2 4 J2 Connector Dimensions 2 4 Control Signal Driver Receiver Circuit Combination 3 1 Step Mode Timing Diagram 3 4 Data Line Driver Receiver Circuit 3 7 TABLES Table Number Title Page Nu...

Page 4: ...This drive consists of storage media that is contained within the drive in a fixed nonoperator removable configuration read write and control electronics the drive mechanism a read write head a precis...

Page 5: ...ng Time 15 milliseconds Average Latency 8 34 milliseconds 7 ccess Time Track to Track Average Mechanical Dimensions Height 0 0 0 e Cit 0 0 3 25 inch I 0 I It II 0 II 6 0 0 width 0 Cit 0 8 crt 5 I 75 i...

Page 6: ...N I o N 0 0 co W z 9 z a co a w u It w i I f o Figure 1 Typical Starting Currents At Nominal Voltage 1 3...

Page 7: ...E TM603 S 1 5 Number of Platters 2 3 3 PHYSICAL DIMENSIONS Kind of Interface Standard Standard Extended Version Standard The major physical dimensions of the TM600 family of drives are contained in Fi...

Page 8: ...3 25 0 01 in 82 6 0 3 mm SIDE VIEW 3 12 0 02 in 79 2 0 5 mm L JL87 OO2in 47 5 0 5 mml 8 00 in maximum 1 I 203 2 mm I 0 19 0 01 in 4 8 0 3 mm 3 38 0 01 in 85 9 0 3 mm 5 88 0 01 in 149 4 0 3 mm BOTTOM V...

Page 9: ...NSPECTION The drive is shipped in a protective container which when bulk packaged minimizes the possibility of damage during shipment The following procedure is the recommended method of uncrating the...

Page 10: ...FRONT PANEL OR CABLE HOL SS 4PLACES HARNESS V AXIS COMPONENT SIDE OF CIRCUIT BOARD X AXIS Figure 3 Connectors of Interface Locations 2 2...

Page 11: ...the circuit board The recommended mating connector P3 is AMP piN 1 480424 0 using AMP pins pIN 60617 4 J3 pins are labeled on the J3 connector Figure 4 contains an illustration of the J3 connector Fi...

Page 12: ...I I J t 0 400 0 01 10 2 0 25 BOARD THICKNESS 0 062 0 007 in 1 59 mm 0 18 mm Figure 5 Jl Connector Dimensions 0 063 in _ 1 6 mm BOARD THICKNESS 0 062 0 007 in 1 59 mm 0 18 mm 0 050 in 1 27 mm 0 100 in...

Page 13: ...board edge con nector The dimensions of the J2 connector are found in Figure 6 The pins are numbered 1 through 20 The even numbered pins are located on the component side of the circuit board The rec...

Page 14: ...6 20 S S S S S S S S S S S S S S S S S S S D D D D I I o o o I I o o I I I I I I o I I I o o Reduce Write Head Select 2 Write Gate Seek Complete Track 000 Fault Head Select 20 Reserved To i2 7 Head Se...

Page 15: ...on the Input Control lines are standard TTL levels They have the following electrical specifications True 0 0 volt D C to 0 4 volt D C I 40 rnA maximum False 2 5 volt D C to 5 25 volt D C I 0 rnA open...

Page 16: ...n the signal is set high false the higher value write current is selected When writing on Tracks 0 through 127 it is recommended that this line be set false For Tracks 128 and greater the Reduced Writ...

Page 17: ...0 1 1 0 1 1 1 0 1 2 2 1 2 0 3 3 0 1 1 4 2 1 2 5 Legend 1 Logical High False 2 Logical Low True A 220 330 ohm resistor pack allows the line to be terminated 3 2 4 Step Interface When the Step Interface...

Page 18: ...terminated 3 2 6 Drive Select Drive Select lines 0 through 3 provide a means of selecting and deselecting a drive These four lines select one of four drives that are daisy chained to the controller T...

Page 19: ...ack the Select Status line goes logically low true This line informs the host system of the selection status of the drive NOTE ONLY ONE DRIVE MAY BE SELECTED AT A TIME 3 3 2 Seek Complete he Seek Comp...

Page 20: ...en this line is false all writing and seeking is inhibited 3 3 6 Index An index pulse is provided once every revolution 16 67 ms nominal to indicate the beginning of a track to the con troller The tra...

Page 21: ...e host system must ensure that the MFM write data signals are in the inactive state The inactive state can be attained by making the plus MFM Write Data line more negative than the minus MFM Write Dat...

Page 22: ...APPENDIX A CUSTOMER INFORMATION BULLETINS...

Page 23: ...ssitate a reduction in average seek time By using the ramped seek mode and giving correct step pulse timing the present drive s average access time can be improved A In order to use a ramped seek four...

Page 24: ...15 U _ _ I _ J i I 2 Slew Phase two pulses separated by 75 milliseconds for each track 3 Deceleration Phase last two tracks or seek LAST PULSE OF SLEW PHASE nl I I 15mls 2 5 ms 2 0msi 5nfs If you hav...

Page 25: ...APPENDIX B SCHEMATICS...

Page 26: ...r B 4 I I I i J If t r aI...

Page 27: ...lil3ilvlcl o i I _ i I l t I i r II I I I 1 II G 0 J 0 V lJ II l r i at i j 1 t a i 0 l i i J1 J 1 3 I 2 II i Z oJ ClI J GG B 5...

Page 28: ...I Ie In RiB 13wIO 330 DR SE L 3a o 0 30 SEL3 8 I l HO o lLU CI OiRI I lS 5VO ffiJ I rI I I J I I L REF l S rU J 5 0 e f orHOTES CONNECTOR JIl PI T INDUCTORS ARE tN UH 10 l6 DIODES ARE N 44 OR EQVIV 3...

Page 29: ...5 9110 1 C41 L 4l 3 IZOP 34 R98 lZ i t I IU 316 1 ISO 6 7 8 A B 8 I 7 I 6 I s t 4 I 3 I 2 o til vA I R3 A 01 WRGAHlp III 9 I 0 4 0 f 10 41l4 lUI RIO L D7A oJD t I R37 lit A41 1 4 iI IW CAll 3 8 CARL H...

Page 30: ...03 ClOtLY 122 TEAYII ATOR PAIlI 1 11 TAU III lItO OI IYE DAIST C RTW7 t AQ T I l iJ 1 U S H C fNO I IV r JI D n e AU WTw8 Ill T RlolI TO 1 lOS D rof DIAl DATA Jr 1 ISPIN W ECt r 9 ll Uillf spiii niH...

Page 31: ...IVEr i I I I _ I 4 I REFER 0 51G AT lAST uSED r SiO CI R4 7 UNVALUEO C MPOOENTS ARE OMITTEO IX Xl G Y OR Y DENOTES CONNECTOR X PINY 5 PNfl TRANSISTORS ARE 2 14125 4 NPN TRANSISTORS ARE 2 14124 3 DIODE...

Page 32: ...CI 8 o _ I 7 v cy J II J 1 1 o I G g G Ill If II...

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