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Chapter 5

E01S Fault finding

FileStore Service Manual

73

&FFE3

OSASCI entry

&FFE7

OSNEWL entry

&FFEE

OSWRCH entry

&FFF1

OSWORD entry

&FFF4

OSBYTE entry

&FFFA

NMI vector

&FFFC

RST vector

&FFFE

IRQ vector

Page zero is suballocated as follows:

From

To

Function

&00

&1F

Spare (some locations used if debug options enabled in
MOS)

&20

&8F

File server/print server workspace

&90

&9F

Spare at present, but may be allocated to file server

&A0

&AF

Econet driver workspace

&B0

&BF

File server workspace

&C0

&DF

Econet driver workspace

&E0

&FF

Disc handler workspace

Page &FC (the memory mapped I/O page) is suballocated as follows:

&FC00[-&FC03]

146818 RTC address register

&FC04[-&FC07]

146818 RTC data register

&FC08[-&FC0B]

(read) ROM/RAM memory access lamb (currently will
always select RAM).

&FC08[-&FC0B]

(write) miscellaneous function latch

&FC0C-&FC0F

2793 Floppy Disc Controller

&FC10-&FC1F

6522 Versatile Interface Adaptor

&FC20-&FC23

6854 Econet interface

&FC24[-&FC27]

Econet interrupt disable

&FC28[-&FC2B]

Econet interrupt enable

&FC2C[-&FC2F]

Floppy drive door switch state

&FC30-&FC33

FileStore expansion bus interface. Strapped to emulate
bus address &40, the bottom two bits of the &FC3x
address indicate bus &4x.

Higher  values  in  this  page  will  access  the  same  registers  as  above  if  taken  modulo  &40.
Values  in  square  brackets  above  are  also  alternate  addresses  for  the  various  registers.  Note
that  addresses  are  subject  to  change,  and  this  should  be  borne  in  mind  when  designing
software to address these registers.

4.10.4

Machine Operating System function calls

The  file  server  MOS  provides  a  subset  of  the  BBC  MOS  interface.  It  is  not  necessarily  the
case  that  any  test  programs  running  in  place  of  the  file  server  will  be  able  to  obtain  all  the
desired  support  from  the  MOS.  Such  test  programs  should  however  be  written  with  an
awareness of the MOS in mind. In particular, it is recommended that the contents of hardware
registers  and  interrupt  vectors  are  saved  and  restored  over  the  execution  of  a  test  program,
and the stack pointer restored to its value on entry.

The file server MOS provides the following functions, at the standard addresses:

OSASCI, OSNEWL, OSWRCH

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Содержание FileStore E01

Страница 1: ...Part no 0482 001 Issue 1 21 Sept 1989 FileStore Service Manual...

Страница 2: ...ce and service on the products must be carried out by Acorn Computers authorised dealers or Approved Service Centres Acorn Computers Limited can accept no liability whatsoever for any loss or damage c...

Страница 3: ...ins interruptions Brown out 10 2 5 3 Power input plug and cable description 11 2 6 Power supply 11 2 6 1 Power required 11 2 6 2 Specification 11 2 7 Safety standards 11 2 8 Electromagnetic interferen...

Страница 4: ...1 Introduction to the E20 unit 28 1 1 Packaging 28 1 2 Identification 28 2 E20 Specification 31 2 1 General specification 31 2 1 1 Hardware components 31 2 1 2 Software components 31 2 2 Physical 31 2...

Страница 5: ...ss decoding 48 5 3 Hand shaking 48 5 4 Bus lines 48 5 5 Final checks 48 PART III FILESTORE E01S 49 1 Introduction to the E01S unit 51 1 1 Equipment description 51 1 2 Function 51 1 3 Prerequisites for...

Страница 6: ...t 70 4 6 1 Econet module 70 4 6 2 Econet clock and active terminator 70 4 7 The disc interface 70 4 8 The printer VIA circuitry 71 4 9 The FileStore expansion bus and E40S E60S interface 71 4 9 1 Buff...

Страница 7: ...sassembly procedure 91 3 2 Parts not serviceable 93 3 3 Assembly procedure 93 4 E40S E60S Circuit description 95 4 1 Bus phases 95 4 1 1 Bus free phase 95 4 1 2 Selection phase 95 4 1 3 Information tr...

Страница 8: ...21 FileStore E01 Final Assembly Master 123 FileStore E20 Main circuit pcb 125 FileStore E20 Final Assembly Communicator 126 FileStore E20 Final Assembly Communicator 128 Stacking FileStore E01S Main c...

Страница 9: ...sembly details and faultfinding procedures The manual is divided into four parts Part I covering the FileStore E01 twin floppy disc unit Part II covering the FileStore E20 hard disc unit Part III cove...

Страница 10: ...Chapter 1 FileStore Service Manual 2...

Страница 11: ...Chapter 1 FileStore Service Manual 3 Part I FileStore E01...

Страница 12: ...Chapter 1 FileStore Service Manual 4...

Страница 13: ...ction To provide a mass storage facility for Econet users When connected to the Econet the FileStore will provide an Econet clock if one is not present Also present is a Real Time Clock and a printer...

Страница 14: ...and Date commands to users The RTC is battery backed up by a rechargeable nickel cadmium cell The Econet Interface is based upon the Acorn Econet module Collision detection and an internal line biasin...

Страница 15: ...Service Manual 7 The following ports are provided FileStore Expansion Bus 34 way IDC Rear Panel Printer 26 way IDC Rear Panel Econet 5 pin DIN Rear Panel Mains in Permanently attached cable through gr...

Страница 16: ...uter Overall dimensions length 545mm width 500mm height 230mm Weight gross 7kg 2 3 Operation Upon power up with the front door closed the FileStore starts itself up into network mode ready for use ove...

Страница 17: ...sed Pin 13 Gnd Pin 14 Not RST Pin 15 Gnd Pin 16 Not Used Pin 17 Gnd Pin 18 D0 Pin 19 D1 Pin 20 D2 Pin 21 D3 Pin 22 D4 Pin 23 D5 Pin 24 D6 Pin 25 D7 Pin 26 D8 Pin 27 A0 Pin 28 A1 Pin 29 Gnd Pin 30 Gnd...

Страница 18: ...in 17 Data 7 D7 Pin 19 Data acknowledge notACK Pin 21 N C N C Pin 23 N C Pin 25 N C N C Pins 2 22 even 0V GND Pin 24 N C Pin 26 N C 2 5 Power input 2 5 1 Power input requirements The power input requi...

Страница 19: ...rives 5V 32OmA 560mA 12V l4OmA Drive start 12V 14OrnA 1 0A 400msec Fan 5V 250mA 2 6 2 Specification 5 5 25V 0 2A 5 5 25V 0 05 0 6A 11 4 12 6V 0 0 4A 0 1A 2 7 Safety standards The equipment is designed...

Страница 20: ...Operating The equipment operates and functions to specification while under the following environmental conditions Temperature 10 to 35 C Relative Humidity 10 to 80 non condensing Mechanical Shock Not...

Страница 21: ...Chapter 2 FileStore Service Manual 13 2 10 Operational lifetime The equipment has been designed to provide an operational lifetime of 3 years 26 208 hours based on a 24 hour day 7 days a week...

Страница 22: ...Chapter 2 FileStore Service Manual 14...

Страница 23: ...ont and rear mouldings 4 Unclip the side mouldings 5 Remove the four screws holding the top metal wrap to the unit and slide it off backwards If you want to access the circuit board or remove the driv...

Страница 24: ...Chapter 3 FileStore Service Manual 16...

Страница 25: ...CAS before RAS using the internal counters in the 4464 RAM chips IC6 divides 02 by 60 On the next instruction fetch synch the processor wait state and CAS low are asserted The RAS is pulsed then afte...

Страница 26: ...from the following sources IRQs from the hard disc Filestore E20 port NMIs from the floppy disc controller NMIs from the Econet Network IRQs from the RTC IRQs from the printer port Interrupts can be d...

Страница 27: ...nctions Data transmission Data reception Clock reception and detection Collision detection Error detection On board circuits provide the Econet clock and termination 4 8 3 Econet clock and active term...

Страница 28: ...r is programmed by system to generate regular interrupts for the operating system service routines 4 12 The FileStore Expansion bus and E20 interface The FileStore expansion bus is handled by IC15 IC2...

Страница 29: ...00 1F spare some locations used if debug options enabled in MOS 20 8F file server print server workspace 90 9F spare at present but may be allocated to file server A0 AF Econet driver workspace B0 BF...

Страница 30: ...place of the file server will be able to obtain all the desired support from the MOS Such test programs should however be written with an awareness of the MOS in mind In particular it is recommended...

Страница 31: ...n RTC One byte is transferred between the address at X Y 4 and the RTC chip address indicated by the bottom six bits of the byte at X Y Note that the first 14 locations are used by the RTC itself and...

Страница 32: ...Read address of top of workspace area to X Y The value returned is the current base of the MOS A l37 LED control X 0 will turn off the programmable led X 1 will turn it on 4 14 Link survey Link functi...

Страница 33: ...ileStore The procedure consists of disco discrete stages which should be followed in the order they are described 5 1 Stage 1 Initialisation If you have a suitable printer available plug it into the u...

Страница 34: ...Store Service Manual 26 The tests to run and the order in which to run them are as follows Run all the tests in FServTest Run FServFmt on each disc Run FServInit on each disc Run FServSoak running all...

Страница 35: ...Chapter 2 FileStore Service Manual 27 Part II FileStore E20...

Страница 36: ...increased mass storage It is a self contained mains powered unit providing approximately 20MByte of storage The E20 has a daisy chain 2MHz connector for adding other 2MHz bus devices to the E0l Unit 1...

Страница 37: ...Chapter 2 FileStore Service Manual 29...

Страница 38: ...Chapter 2 FileStore Service Manual 30...

Страница 39: ...eserialiser dual port sector buffer ECC generation correction and SCSI bus interface 2 1 2 Software components The hard disc is already formatted as an ADFS disc initialised as a file server and conta...

Страница 40: ...dicators Green LED Power on indicator Red LED Drive active 2 4 Host Adaptor SCSI to 2MHz FileStore expansion bus 2 5 FileStore E20 Expansion Input Output Ports FileStore Expansion Bus 37 way D Type Re...

Страница 41: ...t MNI 7 Gnd 8 Not IRQ 9 Gnd 10 not WENCH 11 Gnd 12 Not Used 13 Gnd 14 Not RST 15 Gnd 16 Not Used 17 Gnd 18 D0 19 D1 20 D2 21 D3 22 D4 23 D5 24 D6 25 D7 26 D8 27 A0 28 A1 29 Gnd 30 Gnd 31 Gnd 32 Gnd 33...

Страница 42: ...etailed below The mains is assumed in be at nominal at all other times Voltage V Duration ms Frequency Hz 0 20 0 2 50 50 0 2 2 6 3 Power input plug and cable description Plug type BS1363 Sleeved L N p...

Страница 43: ...Voltage 1000V shall not cause malfunction soft errors 1500V shall not cause physical damage but may cause visible malfunction 2 9 3 Electrostatic discharge The equipment functions is undamaged when s...

Страница 44: ...Hz 2 10 2 Storage and shipping The packaged equipment is designed and manufactured to withstood the following conditions Temperature 20 to 600 C Relative Humidity 10 to 80 non condensing Thermal Shoc...

Страница 45: ...the head mechanism this can only be done by the manufacturer in a special ultra clean room 3 1 Disassembly procedure 1 Power down the unit for disassembly 2 Disconnect the unit from the mains 3 Uncli...

Страница 46: ...Chapter 4 E20 Circuit description FileStore Service Manual 38...

Страница 47: ...e initiator diagram in the appendix are all active low open collector and are as follows SELECT SEL pin 44 Is an open collector signal which is asserted by the initiator as the first step in any trans...

Страница 48: ...ther pins All odd numbered pins are 0V and pin 34 is 5V 4 2 2 SCSI connector pinout PL2 and J4 SCSI pinouts are as follows Signal Pin Pin Signal 0V 1 2 DB0 0V 3 4 DB1 0V 5 6 DB2 0V 7 8 DB3 0V 9 10 DB4...

Страница 49: ...se Allows the initiator to select the target After detecting bus free the initiator asserts SEL The target detects SET asserted and BSY and I O deasserted and responds by asserting BSY The initiator d...

Страница 50: ...formation The target asserts C D and I O and deasserts MSG Data out phase Allows data to be transferred from initiator to target The target deasserts par MSG C D and I O Data in phase Allows data to b...

Страница 51: ...0V 13 14 NRST 0V 15 16 For other applications 0V 17 18 D0 0V 19 20 D2 0V 21 22 D4 0V 23 24 D6 0V 25 26 0V 0V 27 28 A1 0V 29 30 A3 0V 31 32 A5 0V 33 34 A7 4 6 Winchester Disc Host Adaptor In conjuncti...

Страница 52: ...will be generated at the next failing edge of REQ To disable interrupts Y7 is selected with ad on D0 IRQs are enabled only for a very short time around l0ms when ensuring a sequential file buffer 4 6...

Страница 53: ...ing the various buses and control lines RP1 terminates the SCSI lines from the hard disk controller board IMPORTANT RP2 RP3 and RP4 terminate the 2MHz bus lines and are fitted if the E20 unit is the o...

Страница 54: ...Chapter 4 E20 Circuit description FileStore Service Manual 46...

Страница 55: ...g procedures outlined below These should help you to discover any basic fault with the FileStore The E20 unit consists of three major components the hard disc drive the Host Adaptor board the switch m...

Страница 56: ...urther details 5 4 Bus lines When the buses are not being asserted by the host system i e in the bus free phase all bus lines will float according to the values of their terminating resistors Measure...

Страница 57: ...FileStore Service Manual 49 Part III FileStore E01S...

Страница 58: ...FileStore Service Manual 50...

Страница 59: ...er with a printer output to enable FileStore to be used as a printer server A SCSI interface for hard disc and tape archive devices is also provided 1 3 Prerequisites for use The E01S may be connected...

Страница 60: ...FileStore Service Manual 52...

Страница 61: ...e floppy disc interface is based upon the 2793 disc controller to provide an SA400 interface A Centronics compatible printer interface is driven by a VIA which also reads the door flap switch in order...

Страница 62: ...art No 900 000 ABS Cycolac Mild Steel Chassis Finish Vapour blast Net weight 5kg 2 2 2 E01S packaging Material Neopolene Inner Triwall cardboard outer Overall dimensions length 545mm width 500mm heigh...

Страница 63: ...Pin 32 DB 6 Pin 33 DB 7 Pin 34 Not connected Pin 35 Gnd Pin 36 Gnd Pin 37 Gnd Pin 38 Not connected Pin 39 Gnd Pin 40 Gnd Pin 41 Not connected Pin 42 Gnd Pin 43 BSY Pin 44 ACK Pin 45 RST Pin 46 MSG Pin...

Страница 64: ...Data 6 D6 Pin 17 Data 7 D7 Pin 19 Data acknowledge notACK Pin 21 N C N C Pin 23 N C Pin 25 N C N C Pins 2 22 even 0V GND Pin 24 N C Pin 26 N C 2 5 Power input 2 5 1 Power input requirements The power...

Страница 65: ...ctors 3 Conductor cross section 0 75 mm2 each Length of cable 2m 2 6 Power supply 2 6 1 Power required nominal max pcb 5V 1 3A 1 7A Drives 5V 320rnA 560mA 12V l40mA Drive start 12V 840mA 1 0A 400msec...

Страница 66: ...ed to any user accessible points interconnecting cables and also the ground reference plane adjacent to the equipment Discharge Voltage 6kV does not cause malfunc6on soft errors 12kV does not cause ph...

Страница 67: ...Temperature 40 to 600 C Relative Humidity 5 to 90 non condensing Thermal Shock 200 C per hour within the range 20 to 600 C Mechanical Shock Will withstand a drop of 1 metre on each face and on the mos...

Страница 68: ...Chapter 2 E01S Specification FileStore Service Manual 60...

Страница 69: ...Chapter 3 E01S Disassembly and Assembly FileStore Service Manual 61 3 E01S Disassembly and Assembly DANGER WARNING WARNING 3 1 Disassembly procedure...

Страница 70: ...from the rear of the floppy drives Slide both drives back from the front panel until adequate clearance is achieved to allow them to be lifted clear The mounting pillars can then be unscrewed 11 Remov...

Страница 71: ...fan guard Item 74 The fan is part of the psu output cable assembly and should be replaced as a complete assembly if it is found to be faulty 13 Remove the pcb Item 22 Unscrew the bail locks from the...

Страница 72: ...Chapter 3 E01S Disassembly and Assembly FileStore Service Manual 64...

Страница 73: ...upts from the printer can be disabled by writing to the relevant register within the 65C22 The processor provides two clocks 90 degrees out of phase of each other 2 and 4 4 2 Random access memory RAM...

Страница 74: ...h When writing the only difference from the read cycle is that DS is held high while R W is strobed allowing data to be written to the CMOS RAM in the 6818 IC1 on the rising edge of R W Refer to Fig 2...

Страница 75: ...he same cycle as sync going high the processor will wait in its current state and will remain in that state until Ready goes high The second operation that occurs is that the Clear pin of the frequenc...

Страница 76: ...being on the bus after RAS goes low for a time caused by the propagation delay of IC18 IC5 IC2 and IC8 The DRAM internal column address is strobed into the DRAM on the falling edge of CAS with A8 15...

Страница 77: ...these and how to clear them refer to the manufacturer s data sheet When pins 38 and 39 are cleared low the low on pin 12 IC19 will be clocked through by 2 and the NMI will go high provided that pin 9...

Страница 78: ...ink controller is under the control of the main processor using NMI The module provides the following functions Data transmission Data reception Clock reception and detection Collision detection Error...

Страница 79: ...te line The read write line also selects which set of four outputs on IC35 are used Page FC is further decoded into FC30 to FC33 by IC29 IC34 and IC35 The four locations are as follows Address Read Wr...

Страница 80: ...read data signal 4 9 2 Termination The FileStore expansion bus is terminated by a resistor pack RP1 in the E01S and by an external Termination pack placed in the FileStore expansion bus port of the un...

Страница 81: ...onet interrupt enable FC2C FC2F Floppy drive door switch state FC30 FC33 FileStore expansion bus interface Strapped to emulate bus address 40 the bottom two bits of the FC3x address indicate bus 4x Hi...

Страница 82: ...the time regularly to see if an interval expires A 5 Read non volatile memory in RTC A 6 Write non volatile memory in RTC One byte is transferred between the address at X Y 4 and the RTC chip address...

Страница 83: ...rive door open 1 if in COMMAND mode X 252 Read free bytes in primer output buffer A 132 Read address of top of workspace area to X Y The value returned is the current base of the MOS A 137 LED control...

Страница 84: ...Chapter 5 E01S Fault finding FileStore Service Manual 76...

Страница 85: ...should help you to discover any basic fault with the FileStore The E01S unit consists of three major components the pcb two floppy disc drives the switch mode power supply 5 1 Power supply The E01 pow...

Страница 86: ...y would be shown 1 2 3 4 5V Gnd Gnd 12V The output can be tested by measuring the 5V and 12V voltage between the relevant pin and ground The allowable voltage ranges are as follows 5v 500V to 5 25 V 1...

Страница 87: ...mA nominal R W 275mA nominal 12V Motor or start up 500mA nominal Seek 140mA R W 90mA See Fig 7 for a diagram of the typical waveform produced Figure 7 E01S start up waveform NOTE The above figures are...

Страница 88: ...ines for activity at IC16 Data lines for activity at IC16 5 3 Net link If it appears that the link to the network is failing the most common causes are Symptom Action Net module faulty Replace net mod...

Страница 89: ...FileStore Service Manual 81 Part IV FileStore E40S and E60S...

Страница 90: ...FileStore Service Manual 82...

Страница 91: ...E60S The E40S and E60S provide increased mass storage on hard discs for Econet users of 40Mb and 60Mb respectively They are used in conjunction with the E01S floppy disc FileStore up to four E40S or E...

Страница 92: ...FileStore Service Manual 84...

Страница 93: ...There are no other software components the filing contained in the E01S unit 2 2 Physical 2 2 1 E40S and E60S units Dimensions length 333mm width 351mm height 78 8mm Colour Acorn Specification 0920 00...

Страница 94: ...S E60S expansion bus connector The E40S E60S unit is equipped with two expansion bus connectors for connecting to the E01S and an optional second FileStore expansion bus device The connection to the E...

Страница 95: ...tions as detailed below The mains is assumed to be at nominal at all other times Voltage V Duration ms Frequency Hz 0 20 0 2 50 50 0 2 2 5 3 Power input plug and cable description Plug type IEC320 No...

Страница 96: ...es not cause physical damage but may cause visible malfunction 2 8 3 Electrostatic discharge The equipment functions is undamaged when subjected to discharge at both ve and ve polarity from 5pF capaci...

Страница 97: ...and manufactured to withstand the following conditions Temperature 20 to 60 C Relative Humidity 10 to 80 non condensing Thermal Shock 20 C per hour maximum Mechanical Shock Will withstand a drop of 1...

Страница 98: ...Chapter 2 E40S E60S Specification FileStore Service Manual 90...

Страница 99: ...it from the stack 4 Remove the rear p1astic moulding Item19 by levering the top up and back The p1astic mouldings are fixed to the FileStore box by locating lugs on the inner top and bottom faces Thes...

Страница 100: ...crewed After the drive has been removed ensure that it is still kept free of static discharges 8 Remove Power Supply Item 38 The upper surface of the psu is covered by a insulating material Item 25 fi...

Страница 101: ...replaced as a complete assembly if it is found to be faulty 3 2 Parts not serviceable Faults detected in the disc drive disc controller board or power supply mean that the faulty part must either be r...

Страница 102: ...Chapter 3 E40S E60S Disassembly and assembly FileStore Service Manual 94...

Страница 103: ...hat is there will be two data phases one after the other A typical sequence would be bus free select controller selection phase transfer command bytes command phase transfer data bytes if necessary da...

Страница 104: ...rection of the transfer Before each information transfer phase the target will set up the MSG C D and I O lines in such a way that these control signals are stable for 450ns before the REQ of the firs...

Страница 105: ...on FileStore Service Manual 97 4 1 4 Termination An external termination pack is provided with the E01S unit to terminate the expansion bus of E40S E60S units The pack is placed in the expansion bus p...

Страница 106: ...Chapter 4 E40S E60S Circuit description FileStore Service Manual 98...

Страница 107: ...he fault finding procedure outlined below This should help you to discover any basic fault with the FileStore The F40S E60S unit consists of two major components the hard disc drive the switch mode po...

Страница 108: ...ore test software See Appendix A Test Equipment at the back of this manual for further details 5 3 Hand shaking To test the SEL BSY handshake use the handshake test of the SCSI interface tests in the...

Страница 109: ...f the buffers is probably enabled 5 5 Final checks If the procedure outlined above fail to uncover the fault then as a final check you should refer to Appendix A Test Equipment which contains more tho...

Страница 110: ...Chapter 5 E40S E60S Fault Finding FileStore Service Manual 102...

Страница 111: ...y disc drive A network connected to the FileStore to be tested known as the unit under test or UUT The network connection may be via a Bridge An Econet Test Box Acorn part no 0003 012 FileStore dealer...

Страница 112: ...est discs T Test main board Execute a star command Option If you fail to log on to the station specified an error message is printed and a truncated menu of just Help Logon Quit and Star commands will...

Страница 113: ...same number of sectors divided into the same number of cylinders heads and tracks this is checked by the program and the target disc must be formatted but it need not be initialised as the initialisa...

Страница 114: ...irectory contains along with the catalogue information about a file the sector number called the System Internal Number SIN of an object called a map chain which is a list of sector numbers where the...

Страница 115: ...error recovery parameters of the drive may be changed Change error recovery R See the Rodime User Manuals for full details The numbers of heads and cylinders can be specified if they can t be read fro...

Страница 116: ...nge drive number H Help display this message I Drive information Q Quit back to main menu W Write directory and initialise FileStore Using the options from the above menu you can use FServInit to modi...

Страница 117: ...9 0A 0B 0C 0D 0E 0F ASCII data 00 FE 01 10 00 00 00 00 04 84 00 C0 02 FF FF FF 50 05 50 75 P Pu 20 63 65 00 00 53 59 53 54 00 00 00 00 00 00 00 54 ce SYST T 30 4E 00 00 00 00 04 00 40 20 44 00 00 FC 0...

Страница 118: ...ak test FServSoak does not use the current disc that the other programs use Instead it provides a list of activities which may be examined with the View activities A option from the secondary menu The...

Страница 119: ...ime clock T the optical door sensor O the printer P the SCSI interface S Some of these tests generate a waveform which can be checked with an oscilloscope The tests and the resulting waveform produced...

Страница 120: ...ther high or low SCSI interface write data W pin 11 of IC38 should be as shown in Fig 10 and not stuck either high or low SCSI interface read status pin 1 of IC36 should be as seen in Fig 10 and not s...

Страница 121: ...e without the written approval of Acorn Computers Limited will not be supported and are carried out entirely at the risk of the modifier The programs as provided are in a highly compressed crunched fo...

Страница 122: ...Appendix A Test Equipment FileStore Service Manual 114...

Страница 123: ...Title Part number Issue FileStore E01 Main circuit pcb parts list 0154 000 P 5 FileStore E01 Final assembly parts list 0054 000 P Communicator 2 0054 002 P Master 4 FileStore E20 Main circuit pcb part...

Страница 124: ...800 070 CONR 2W SHUNT 0 1 6 LK1 2 3 7 8 13 20 21 0884 059 SPCR DBL LATCHED 19mmH 2 NET MODULE 22 0895 081 FOAM PAD S ADH DBL SIDED 2 UNDER X1 X2 R1 0502 911 RES 910R C MF 5 OW25 1 R2 0502 391 RES 390R...

Страница 125: ...271 RES 270R C MF 5 OW25 1 R37 0502 560 RES 56R C MF 5 OW25 1 R38 0502 103 RES 10K C MF 5 OW25 1 R56 0502 103 RES 10K C MF 5 OW25 1 R57 NOT FITTED R58 NOT FITTED R59 0502 103 RES 10K C MF 5 OW25 1 R60...

Страница 126: ...464 DRAM 120Ns 64kx4 1 IC14 0744 139 IC 74ALS139 TTL 16 0 3 1 IC15 0742 245 IC 74LS245 TTL 16 0 3 1 IC16 0747 074 IC 74HC74 CMOS 14 0 3 1 IC17 0747 074 IC 74HC74 CMOS 14 0 3 1 IC18 0744 139 IC 74ALS13...

Страница 127: ...IODE SI IN4148 1 D5 0794 148 DIODE SI IN4148 1 D6 0794 148 DIODE SI IN4148 1 D7 0794 148 DIODE SI IN4148 1 SK1 0800 870 CONR 34W WAFR 2ROW 0 1 1 SK2 NOT USED SK3 0800 004 CONR 5W SKT DIN RA PCB 1 SK4...

Страница 128: ...LK9 LK10 0800 050 CONR 2W WAFR 0 1 ST PCB 1 LK11 LK12 LK13 0800 051 CONR 3W WAFR 0 1 ST PCB 1 LK14 LK15 0800 054 CONR 8W WAFR 0 1 ST PCB 1 LK16 0800 051 CONR 3W WAFR 0 1 ST PCB 1 PL1 0800 200 FSTN TA...

Страница 129: ...ABEL 1 18 0254 402 E01 FRONT LABEL LEFT 1 19 0254 403 E01 FRONT LABEL CENTRE 1 20 0254 404 E01 FRONT LABEL RIGHT 1 21 22 23 24 25 26 0254 605 E01 SIDE MOULDING 2 27 0254 606 E01 REAR MOULDING 1 28 29...

Страница 130: ...D POSI 20 57 58 0882 125 SCW M3x16 PAN HD POSI 11 59 60 0882 126 SCW M3x20 PAN HD POSI 4 61 0882 145 SCW M4x16 PAN HD POSI 6 62 63 0882 902 NUT M3 STL FULL Z PAS 8 64 65 0882 985 WSHR M3 PLN NYL 10 66...

Страница 131: ...7 E01 REAR LABEL 1 18 0254 424 E01 FRONT LABEL LEFT 1 19 0254 425 E01 FRONT LABEL CENTRE 1 20 0254 426 E01 FRONT LABEL RIGHT 1 21 22 23 24 25 26 0258 103 B B SIDE MOULDING 2 27 0258 115 B B REAR MOULD...

Страница 132: ...1 SCW M3x6 PAN HD POSI 20 57 58 0882 125 SCW M3x16 PAN HD POSI 11 59 60 0882 126 SCW M3x20 PAN HD POSI 4 61 0882 145 SCW M4x16 PAN HD POSI 6 62 63 0882 902 NUT M3 STL FULL Z PAS 8 64 65 0882 985 WSHR...

Страница 133: ...R 22u ALEC 16v AX 1 C1 12 13 14 15 0740 007 IC 7407 TTL 14 0 3 1 IC16 16 0740 014 IC 7414 TTL 14 0 3 1 IC15 17 0740 038 IC 7438 TTL 14 0 3 2 IC13 14 18 0742 000 IC 74LS00 TTL 14 0 3 1 IC12 19 0742 004...

Страница 134: ...0154 724 E20 HOST ADAT TO PSU CBL 1 14 0154 725 E20 IND FAN TO PSU CBL 1 15 16 17 18 0254 406 E20 FRONT LABEL 1 19 0254 408 E20 REAR LABEL 1 20 21 22 23 24 0254 603 E20 WINCH DISC DRIVE 1 25 0254 604...

Страница 135: ...121 SCW M3x6 PAN HD POSI 14 57 58 0882 121 SCW M3x10 PAN HD POSI 1 59 60 0882 126 SCW M3x20 PAN HD POSI 4 61 0882 145 SCW M4x16 PAN HD POSI 4 62 63 0882 902 NUT M3 STL FULL Z PAS 6 64 65 0882 985 WSH...

Страница 136: ...154 724 E20 HOST ADAT TO PSU CBL 1 14 0154 725 E20 IND FAN TO PSU CBL 1 15 16 17 18 0254 430 E20 FRONT LABEL 1 19 0254 431 E20 REAR LABEL 1 20 21 22 23 24 0254 603 E20 WINCH DISC DRIVE 1 25 0254 604 E...

Страница 137: ...N HD POSI 14 57 58 0882 123 SCW M3x10 PAN HD POSI 1 59 0882 125 SCW M3x16 PAN HD POSI 8 60 0882 126 SCW M3x20 PAN HD POSI 4 61 0882 145 SCW M4x16 PAN HD POSI 4 62 63 0882 902 NUT M3 STL FULL Z PAS 6 6...

Страница 138: ...25 3 R13 36 38 19 0502 154 RES 150K C MF 5 0W25 1 R6 20 21 22 0502 221 RES 220R C MF 5 0W25 1 R39 23 0502 222 RES 2K2 C MF 5 0W25 2 R34 44 24 0502 223 RES 22K C MF 5 0W25 1 R24 25 0502 271 RES 270R C...

Страница 139: ...631 027 CPCTR 27pF CPLT 30V 2 1 C9 66 0631 033 CPCTR 33pF CPLT 30V 2 3 C2 4 12 67 0631 047 CPCTR 47pF CPLT 30V 2 2 C8 11 68 69 70 0635 221 CPCTR 220uF ALEC 16V RAD 1 B 71 72 73 0650 224 CPCTR 220nF MP...

Страница 140: ...42 245 IC 74LS245 TTL 20 0 3 1 IC30 108 0742 373 IC 74LS373 TTL 20 0 3 2 IC36 38 109 110 0744 139 IC 74ALS139 TTL 16 0 3 3 IC12 13 17 111 112 0749 000 IC 74HCT00 CMOS 14 0 3 2 IC5 40 113 0749 002 IC 7...

Страница 141: ...IC28 RP1 145 0800 121 SKT IC 20 0 3 SUPA 1 USE WITH IC30 146 0800 125 SKT IC 24 0 6 SUPA 1 USE WITH IC1 147 0800 129 SKT IC 28 0 6 SUPA 1 USE WITH IC7 148 149 150 151 152 153 0800 203 FSTN TAB 6 3mmx...

Страница 142: ...WIRE 25SWG SPR TIN A R USE WITH X1 X2 183 184 185 186 187 0882 693 SCW M3x8 PAN POSI ST 2 USE WITH PL1 188 0882 902 NUT M3 STL FULL Z PAS 2 USE WITH PL1 189 0882 962 WSHR M3 PLN STL Z PAS 2 USE WITH...

Страница 143: ...16 17 0258 103 B B SIDE MOULDING 2 18 0258 115 B B REAR MOULDING 1 19 20 21 22 0182 000 FILESTORE II PCB BOM 1 23 0182 001 DISC DATA CABLE ASSY 1 24 0182 002 PSU OUTPUT CABLE ASSY 1 25 0182 003 IEC SK...

Страница 144: ...ITEMS 13 22 37 50 63 0882 123 SCW M3x10 PAN HD POSI 4 USED ON ITEM 37 64 0882 127 SCW M3x25 PAN HD POSI 5 USED ON ITEMS 24 EARTH 65 0882 145 SCW M4x16 PAN HD POSI 4 USED ON ITEM 77 66 0882 223 SCW M3x...

Страница 145: ...1 14 0254 737 M SERIES TOP WRAP 1 15 16 17 18 0258 103 B B SIDE MOULDING 2 19 0258 115 B B REAR MOULDING 1 20 21 22 23 0182 003 IEC SKT TO SW CABLE ASSY 1 24 0182 004 IEC EARTH CABLE ASSY 1 25 0282 01...

Страница 146: ...23 SCW M3x10 PAN HD POSI 4 USED ON ITEMS 25 38 63 0882 127 SCW M3x25 PAN HD POSI 5 USED ON ITEMS 34 EARTH 64 0882 145 CSW M4x16 PAN HD POSI 4 USED ON ITEM 78 65 0882 223 SCW M3x10 CSK HD POSI 2 USED O...

Страница 147: ...LDING 1 14 0254 737 M SERIES TOP WRAP 1 15 16 17 18 0258 103 B B SIDE MOULDING 2 19 0258 115 B B REAR MOULDING 1 20 21 22 23 0182 003 IEC SKT TO SW CABLE ASSY 1 24 0182 004 IEC EARTH CABLE ASSY 1 25 0...

Страница 148: ...Appendix B Parts lists FileStore Service Manual 140...

Страница 149: ...cb diagram 0154 000 C 5 Main circuit pcb layout 0154 000 A 4 Main circuit pcb silk screen 0254 000 SS 3 Final assembly diagram 0054 000 A 5 Wiring diagram 0054 000 WD 2 FileStore E20 Main circuit pcb...

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