Acorn FileStore E20 Service Manual

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Summary of Contents

Page 1 - FileStore Service Manual

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

Page 2

Chapter 1 FileStore Service Manual 2

Page 3 - Contents

Chapter 3 E40S/E60S Disassembly and assembly FileStore Service Manual 92 Figure 8: Rear plastic removal (7) Remove the hard disc drive (

Page 4

Chapter 3 E40S/E60S Disassembly and assembly FileStore Service Manual 93  The psu should now be free of the FileStore unit. (9) Remove Fan

Page 5

Chapter 3 E40S/E60S Disassembly and assembly FileStore Service Manual 94

Page 6

Chapter 4 E40S/E60S Circuit description FileStore Service Manual 95 4. E40S/E60S Circuit description Read this chapter in conjunction with

Page 7

Chapter 4 E40S/E60S Circuit description FileStore Service Manual 96 The information transfer phase is as follows: Signals Direction

Page 8

Chapter 4 E40S/E60S Circuit description FileStore Service Manual 97 4.1.4 Termination An external termination pack is provided with the E01

Page 9 - Introduction

Chapter 4 E40S/E60S Circuit description FileStore Service Manual 98

Page 10 - Chapter 1

Chapter 5 E40S/E60S Fault Finding FileStore Service Manual 99 5. E40S/E60S Fault finding The following chapter describes the suggested

Page 11 - Part I: FileStore E01

Chapter 5 E40S/E60S Fault Finding FileStore Service Manual 100 See Fig 9 for a diagram of the typical waveform produced: Figure 9: E40S/ E

Page 12

Chapter 5 E40S/E60S Fault Finding FileStore Service Manual 101 The correct voltages are as follows:  2 MHz expansion bus D0 to D7 and A0 t

Page 13 - 1.4 Enhancements

Chapter 1 FileStore Service Manual 3 Part I: FileStore E01

Page 14 - 2. E01 Specification

Chapter 5 E40S/E60S Fault Finding FileStore Service Manual 102

Page 15 - Chapter 2

Appendix A Test Equipment FileStore Service Manual 103 Appendix A. Test Equipment This appendix describes the equipment required and the pro

Page 16 - 2.3 Operation

Appendix A Test Equipment FileStore Service Manual 104 Any of the above connections should not be made on a network that is in active use. F

Page 17 - 2.4 Signal connectors

Appendix A Test Equipment FileStore Service Manual 105 FservCopy Select ‗C‘ from the FServMenu. This invokes FservCopy, the disc

Page 18 - 2.5 Power input

Appendix A Test Equipment FileStore Service Manual 106 FServEdit Select E‘ from FServMenu, this invokes FServEdit, the sector-by-sector disc

Page 19 - 2.7 Safety standards

Appendix A Test Equipment FileStore Service Manual 107 FServFmt Select ‗F‘ from FServMenu. This invokes FServFmt, a general format

Page 20 - 2.9 Environment

Appendix A Test Equipment FileStore Service Manual 108 FServInit Select ‗I‘ from FServMenu. This invokes FServInit, the FileStore disc init

Page 21 - 2.10 Operational lifetime

Appendix A Test Equipment FileStore Service Manual 109 FServCMOS Select ‗N‘ from FServMenu. This invokes FServCMOS, the FileStore non-volat

Page 22

Appendix A Test Equipment FileStore Service Manual 110 FServSoak Select ‗S‘ from FServMenu. This invokes FServSoak, the FileStore s

Page 23 - 3.2 Assembly procedure

Appendix A Test Equipment FileStore Service Manual 111 FServTest Select ‗T‘ from FServMenu. This invokes FServTest, the FileStore main boar

Page 24 - Chapter 3

Chapter 1 FileStore Service Manual 4

Page 25 - 4. E01 Circuit description

Appendix A Test Equipment FileStore Service Manual 112  SCSI interface - write IRQ enable 1 (‗1‘): pin 11 of IC10 should be as seen in Fig

Page 26 - 4.7 Read-only memory (ROM)

Appendix A Test Equipment FileStore Service Manual 113 Checking the test equipment (validation) Equipment required (1) A known working Fi

Page 27 - 4.9 The disc interface

Appendix A Test Equipment FileStore Service Manual 114

Page 28 - 4.13 Main signal paths

Appendix B Parts lists FileStore Service Manual 115 Appendix B. Parts lists This Appendix contains the parts lists for FileStore and Stackin

Page 29 - 4.13.3 Address decoding

Appendix B Parts lists FileStore Service Manual 116 FileStore E01 main circuit pcb ITEM PART NO DESCRIPTION QTY REMARKS 1 0254,000

Page 30

Appendix B Parts lists FileStore Service Manual 117 ITEM PART NO DESCRIPTION QTY REMARKS R21 0502,271 RES 270R C/MF 5% OW25 1

Page 31

Appendix B Parts lists FileStore Service Manual 118 ITEM PART NO DESCRIPTION QTY REMARKS C15 FITTED ON TEST SOT12 0631

Page 32 - 4.14 Link survey

Appendix B Parts lists FileStore Service Manual 119 ITEM PART NO DESCRIPTION QTY REMARKS Q1 NOT USED Q2 NOT USED

Page 33 - 5. E01 Fault finding

Appendix B Parts lists FileStore Service Manual 120 ITEM PART NO DESCRIPTION QTY REMARKS LK5 0800,050 CONR 2W WAFR 0.1‖ ST PCB

Page 34

Appendix B Parts lists FileStore Service Manual 121 FileStore E01 Final Assembly – Communicator ITEM PART NO DESCRIPTION QTY REMARKS

Page 35 - Part II : FileStore E20

Chapter 1 FileStore Service Manual 5 1. Introduction to the E01 unit 1.1 Equipment description FileStore E01 is The twin floppy-disc versio

Page 36 - 1.2 Identification

Appendix B Parts lists FileStore Service Manual 122 ITEM PART NO DESCRIPTION QTY REMARKS 0154,740 DISC DRIVE 3.5‖ (NEC) 1 OPT

Page 37

Appendix B Parts lists FileStore Service Manual 123 FileStore E01 Final Assembly – Master ITEM PART NO DESCRIPTION QTY REMARKS 1

Page 38

Appendix B Parts lists FileStore Service Manual 124 ITEM PART NO DESCRIPTION QTY REMARKS 46 0831,035 DISC DRIVE 3.5‖ (SONY) 2

Page 39 - 2. E20 Specification

Appendix B Parts lists FileStore Service Manual 125 FileStore E20 Main circuit pcb ITEM PART NO DESCRIPTION QTY REMARKS 1 0227,00

Page 40 - 2.4 Host Adaptor

Appendix B Parts lists FileStore Service Manual 126 FileStore E20 Final Assembly – Communicator ITEM PART NO DESCRIPTION QTY REMARKS

Page 41

Appendix B Parts lists FileStore Service Manual 127 ITEM PART NO DESCRIPTION QTY REMARKS 47 48 0805,900 SW DPST 250V 4A ROC

Page 42 - 2.7 Power supply

Appendix B Parts lists FileStore Service Manual 128 FileStore E20 Final Assembly – Communicator ITEM PART NO DESCRIPTION QTY REMARKS

Page 43 - 2.10 Environment

Appendix B Parts lists FileStore Service Manual 129 ITEM PART NO DESCRIPTION QTY REMARKS 47 48 0805,900 SW DPST 250V 4A ROC SN

Page 44 - 2.12 Operational lifetime

Appendix B Parts lists FileStore Service Manual 130 Stacking FileStore E01S Main circuit pcb ITEM PART NO DESCRIPTION QTY REMARKS

Page 45 - 3.2 Serviceable parts

Appendix B Parts lists FileStore Service Manual 131 ITEM PART NO DESCRIPTION QTY REMARKS 47 48 49 0502,911 RES 910R C/MF 5%

Page 46

Chapter 2 FileStore Service Manual 6 2. E01 Specification This chapter gives details of the main features of the E01 unit, includi

Page 47 - 4. E20 Circuit description

Appendix B Parts lists FileStore Service Manual 132 ITEM PART NO DESCRIPTION QTY REMARKS 92 93 0740,007 IC 7407 TTL 14/0.3‖ 1

Page 48 - 4.3 Bus phases

Appendix B Parts lists FileStore Service Manual 133 ITEM PART NO DESCRIPTION QTY REMARKS 136 0800,004 CONR 5W SKT DIN RA PCB 1

Page 49 - 4.3.2 Selection phase

Appendix B Parts lists FileStore Service Manual 134 ITEM PART NO DESCRIPTION QTY REMARKS 181 182 0870,422 WIRE 25SWG SPR TIN

Page 50 - 4.5 The 2MHz bus

Appendix B Parts lists FileStore Service Manual 135 Stacking FileStore E01S Final Assembly ITEM PART NO DESCRIPTION QTY REMARKS 1

Page 51

Appendix B Parts lists FileStore Service Manual 136 ITEM PART NO DESCRIPTION QTY REMARKS 47 0805,900 SW DPST 250V 4A ROC SNP 1

Page 52 - 4.6.2 Buffering

Appendix B Parts lists FileStore Service Manual 137 Stacking FileStore E40S Final Assembly ITEM PART NO DESCRIPTION QTY REMARKS 1

Page 53 - 4.6.3 Termination

Appendix B Parts lists FileStore Service Manual 138 ITEM PART NO DESCRIPTION QTY REMARKS 47 0805,900 SW DPST 250V 4A ROC SNP 1

Page 54

Appendix B Parts lists FileStore Service Manual 139 Stacking FileStore E60S Final Assembly ITEM PART NO DESCRIPTION QTY REMARKS 1

Page 55 - 5. E20 Fault finding

Appendix B Parts lists FileStore Service Manual 140

Page 56

FileStore Service Manual 141 Appendix C. Diagrams This appendix contains all the relevant drawings and diagrams for FileStore and Stacking Fil

Page 57 - Part III : FileStore E01S

Chapter 2 FileStore Service Manual 7 The following ports are provided: FileStore Expansion Bus: 34 way IDC - Rear Panel Printer: 26 way

Page 68

Chapter 2 FileStore Service Manual 8 2.2 Physical 2.2.1 E01 unit Dimensions: length 333mm width 351mm height 78.8mm Colour: Ac

Page 74

Chapter 2 FileStore Service Manual 9 2.4 Signal connectors 2.4.1 FileStore E01 expansion bus pinouts Connector Type: 34 way IDC male. The pin

Page 75 - 4.4 Sequential Circuits

Chapter 2 FileStore Service Manual 10 2.4.3 Printer port Connector type: 26 way IDC connector Standard Centronics - compatible port with cont

Page 76 - 4.4.3 ROM CONTROL

Chapter 2 FileStore Service Manual 11 2.5.3 Power input plug and cable description Plug type: BS1363A , sleeved L+N pins BSI Kitemake and/

Page 77 - 4.4.4 INTON/INTOFF

FileStore Service Manual ii © Copyright Acorn Computers Limited 1989 Neither the whole nor any pan of the information contained in, or the pr

Page 78 - 4.7 The disc interface

Chapter 2 FileStore Service Manual 12 Half-Pulse width duration: 5Ons Polarity: +ve or -ve Phase Angle: Free non-synchronous

Page 79

Chapter 2 FileStore Service Manual 13 2.10 Operational lifetime The equipment has been designed to provide an operational lifetime of 3 years (

Page 80 - 4.10 Main signal paths

Chapter 2 FileStore Service Manual 14

Page 81

Chapter 3 FileStore Service Manual 15 3. E01 Disassembly and assembly DANGER Removing the cover of an E01 unit exposes dangerous volt

Page 82

Chapter 3 FileStore Service Manual 16

Page 83 - 4.11 Link survey

Chapter 4 E01 Circuit description FileStore Service Manual 17 4. E01 Circuit description Read this chapter in conjunction with the circuit

Page 84

Chapter 4 E01 Circuit description FileStore Service Manual 18 4.3 The RESET circuitry A simple reset is supplied by the components I

Page 85 - 5. E01S Fault finding

Chapter 4 E01 Circuit description FileStore Service Manual 19 4.8 The Econet port 4.8.1 The Econet network Econet is the Acorn local area ne

Page 86 - 1 2 3 4

Chapter 4 E01 Circuit description FileStore Service Manual 20 4.10 The printer/VIA circuitry IC23 and IC21 control the printer interfa

Page 87

Chapter 4 E01 Circuit description FileStore Service Manual 21 4.13.3 Address decoding The main decoding component are IC11, IC14, IC18 and

Page 88 - 5.4 Final checks

FileStore Service Manual iii Contents CONTENTS III INTRODUCTION 1 PART I: FILESTORE E01 3 1. Introduction to the E01 unit 5 1.1 Equipme

Page 89

Chapter 4 E01 Circuit description FileStore Service Manual 22 Higher values in this page will access the same registers as above if taken m

Page 90

Chapter 4 E01 Circuit description FileStore Service Manual 23 OSWORD The following OSWORD functions are supported (X/Y point to the data bl

Page 91

Chapter 4 E01 Circuit description FileStore Service Manual 24 OSBYTE The following OSBYTE functions are supported: A=50 POLL TRANSMIT –

Page 92

Chapter 5 E01 Fault finding FileStore Service Manual 25 5. E01 Fault finding The following chapter describes the suggested methods of fault

Page 93 - 2. E40S/ E60S Specification

Chapter 5 E01 Fault finding FileStore Service Manual 26 The tests to run and the order in which to run them are as follows:  Run all the

Page 94 - 2.3.2 Indicators

Chapter 2 FileStore Service Manual 27 Part II : FileStore E20

Page 95

Chapter 2 FileStore Service Manual 28 1. Introduction to the E20 unit The FileStore E20, Acorn part no. 0354,407 for the Master version, and 03

Page 96

Chapter 2 FileStore Service Manual 29

Page 97 - 2.11 Operating lifetime

Chapter 2 FileStore Service Manual 30

Page 98

Chapter 2 FileStore Service Manual 31 2. E20 Specification This chapter gives details of the main features of the FileStore E20 hard disc file

Page 99

FileStore Service Manual iv 4.6 Random access memory (RAM) 18 4.7 Read-only memory (ROM) 18 4.8 The Econet port 19 4.8.1 The Econet netwo

Page 100

Chapter 2 E20 Specification FileStore Service Manual 32 2.3 Operation When the E20 is connected to a FileStore E01 and powered up, the File

Page 101 - 3.3 Assembly procedure

Chapter 2 E20 Specification FileStore Service Manual 33 The connectors are 34-way DC male sockets, wired as below: Pin Signal Comments

Page 102

Chapter 2 E20 Specification FileStore Service Manual 34 2.6 Power input 2.6.1 Power input requirements The power input requirements are as

Page 103 - 4.1 Bus phases

Chapter 2 E20 Specification FileStore Service Manual 35 2.8 Safety standards The equipment is designed and manufactured to comply with the f

Page 104

Chapter 2 E20 Specification FileStore Service Manual 36 Mechanical Shock Not operating: 35g 1(2 sinusoid l0ms, maximum repetition

Page 105 - 4.1.4 Termination

Chapter 4 E20 Circuit description FileStore Service Manual 37 3. E20 Disassembly and assembly DANGER Removing the cover of an E20 un

Page 106

Chapter 4 E20 Circuit description FileStore Service Manual 38

Page 107 - 5. E40S/E60S Fault finding

Chapter 4 E20 Circuit description FileStore Service Manual 39 4. E20 Circuit description Read this chapter in conjunction with the circuit

Page 108 - 5.3 Hand shaking

Chapter 4 E20 Circuit description FileStore Service Manual 40 MESSAGE (MSG, pin 42) Is asserted by the target when it issues a message byte

Page 109 - 5.5 Final checks

Chapter 4 E20 Circuit description FileStore Service Manual 41 The prescribed sequence is from bus free to selection to one or more of t

Page 110

FileStore Service Manual v 3. E20 Disassembly and assembly 37 3.1 Disassembly procedure 37 3.2 Serviceable parts 37 3.3 Assembly procedur

Page 111 - Connecting the UUT

Chapter 4 E20 Circuit description FileStore Service Manual 42 (1) Target asserts REQ to request data transfer (2) Initiator asserts ACK whe

Page 112 - Selecting menu entries

Chapter 4 E20 Circuit description FileStore Service Manual 43 NPGFC (not-page &FC, pin 10) is a signal decoded from the top 8 system add

Page 113 - FservCopy

Chapter 4 E20 Circuit description FileStore Service Manual 44 The low order address lines A0 to A7 are buffered through IC5. IC6, a 3 to 8

Page 114 - FServEdit

Chapter 4 E20 Circuit description FileStore Service Manual 45 4.6.3 Termination The Host Adaptor pcb carries 4 resistor packs, RP1 to RP4 w

Page 115 - FServFmt

Chapter 4 E20 Circuit description FileStore Service Manual 46

Page 116 - FServInit

Chapter 5 E20 Fault finding FileStore Service Manual 47 5. E20 Fault finding The following chapter describes the suggested methods of fault

Page 117 - FServCMOS

Chapter 5 E20 Fault finding FileStore Service Manual 48 The hard disc unit: +5V around 1 to l.5A +12V up in 4.5A, falling to around

Page 118 - FServSoak

FileStore Service Manual 49 Part III : FileStore E01S

Page 119 - FileStore E01

FileStore Service Manual 50

Page 120 - FileStore E01S

FileStore Service Manual 51 1. Introduction to the E01S unit 1.1 Equipment description E01S is the twin floppy disc FileStore base unit 1.2

Page 121 - Modifying the test software

FileStore Service Manual vi 2.8.3 Electrostatic discharge 58 2.9 Environment 58 2.9.1 Operating 58 2.9.2 Storage and shipping 59 2.10 O

Page 122 - Appendix A Test Equipment

FileStore Service Manual 52

Page 123 - Appendix B. Parts lists

Chapter 2 E01S Specification FileStore Service Manual 53 2. E01S Specification This chapter gives details of the main features of the E01S,

Page 124 - Appendix B Parts lists

Chapter 2 E01S Specification FileStore Service Manual 54 The following ports are provided: FileStore expansion Bus: 50-way Delta - rear

Page 125

Chapter 2 E01S Specification FileStore Service Manual 55 2.4 Signal connectors 2.4.1 FileStore E01S expansion bus pinouts Connector Type: 50

Page 126

Chapter 2 E01S Specification FileStore Service Manual 56 2.4.3 Printer port Connector type: 24 way Delta connector Standard Centronics-com

Page 127

Chapter 2 E01S Specification FileStore Service Manual 57 2.5.3 Power input plug and cable description Plug type: BS1363A sleeved L+N p

Page 128

Chapter 2 E01S Specification FileStore Service Manual 58 2.8.2 Mains transients The equipment functions and is undamaged in the presen

Page 129

Chapter 2 E01S Specification FileStore Service Manual 59 2.9.2 Storage and shipping The packaged equipment is designed and manufactured to

Page 130

Chapter 2 E01S Specification FileStore Service Manual 60

Page 131

Chapter 3 E01S Disassembly and Assembly FileStore Service Manual 61 3. E01S Disassembly and Assembly DANGER WARNING WARNING 3.1 Disassembl

Page 132

FileStore Service Manual vii 2.4.1 FileStore E40S/E60S expansion bus connector 86 2.5 Power input 87 2.5.1 Power input requirements 87 2.5

Page 133

Chapter 3 E01S Disassembly and Assembly FileStore Service Manual 62 Figure 1: Rear plastic removal (10) Remove the floppy drives (Item 50).

Page 134

Chapter 3 E01S Disassembly and Assembly FileStore Service Manual 63  Unplug the psu output cable assembly (Item 24) from the psu.  Remov

Page 135

Chapter 3 E01S Disassembly and Assembly FileStore Service Manual 64

Page 136

Chapter 5 E01S Fault finding FileStore Service Manual 65 4. E01S Circuit description Read this chapter in conjunction with the circuit diag

Page 137

Chapter 5 E01S Fault finding FileStore Service Manual 66 After the system is powered-up, whenever the device is accessed the ,CE is taken lo

Page 138

Chapter 5 E01S Fault finding FileStore Service Manual 67 4.4 Sequential Circuits There are four sequential circuits in FileStore:  RAM ref

Page 139

Chapter 5 E01S Fault finding FileStore Service Manual 68 During refresh control (i.e. when an op-code fetch occurs from RAM) the

Page 140

Chapter 5 E01S Fault finding FileStore Service Manual 69 read from the EPROM when the /OE and /CE are both low. 4.4.4 INTON/INTOFF Non-ma

Page 141

Chapter 5 E01S Fault finding FileStore Service Manual 70 4.4.5 Econet Clock Generation IC15, IC27 and IC22 generate the Econet clock signal

Page 142

Chapter 5 E01S Fault finding FileStore Service Manual 71 In this application it is programmed to support 250kbps data transfer and MFM decod

Page 143

FileStore Service Manual viii Modifying the test software 113 APPENDIX B. PARTS LISTS 115 FileStore E01 main circuit pcb 116 FileStore E01 Fi

Page 144

Chapter 5 E01S Fault finding FileStore Service Manual 72  Y7(pin 7) low - enable IRQ When Y7 is selected, the least significant bit of t

Page 145

Chapter 5 E01S Fault finding FileStore Service Manual 73 &FFE3 OSASCI entry &FFE7 OSNEWL entry &FFEE OSWRCH en

Page 146

Chapter 5 E01S Fault finding FileStore Service Manual 74 These have the same specification as for the BBC MOS, except that the character in

Page 147

Chapter 5 E01S Fault finding FileStore Service Manual 75 OSBYTE The following OSBYTE functions are supported: A=50 POLL TRANSMIT - as B

Page 148

Chapter 5 E01S Fault finding FileStore Service Manual 76

Page 149 - Appendix C. Diagrams

Chapter 5 E01S Fault finding FileStore Service Manual 77 5. E01S Fault finding The following chapter describes the suggested methods

Page 150

Chapter 5 E01S Fault finding FileStore Service Manual 78 The current drawn should be as follows: The pcb: +5V 0.9A to 1.2A min, 1.5A ma

Page 151

Chapter 5 E01S Fault finding FileStore Service Manual 79 The measured values should be: +5V Standby 50mA nominal R/W 275mA nominal

Page 152

Chapter 5 E01S Fault finding FileStore Service Manual 80 5.2 Initialisation If you have a suitable printer available, plug it into the unit

Page 153

FileStore Service Manual 81 Part IV: FileStore E40S and E60S

Page 154

Chapter 1 FileStore Service Manual 1 Introduction This manual is designed to provide the information required to diagnose and repair faults on

Page 155

FileStore Service Manual 82

Page 156

FileStore Service Manual 83 1. Introduction to the E40S and E60S The E40S and E60S provide increased mass storage on hard discs for Econet us

Page 157

FileStore Service Manual 84

Page 158

Chapter 2 E40S/E60S Specification FileStore Service Manual 85 2. E40S/ E60S Specification This chapter gives details of the main features o

Page 159

Chapter 2 E40S/E60S Specification FileStore Service Manual 86 2.3.1 Controls Power on/off switch On rear panel Drive id switch On re

Page 160

Chapter 2 E40S/E60S Specification FileStore Service Manual 87 2.5 Power input 2.5.1 Power input requirements Power input requirements are a

Page 161

Chapter 2 E40S/E60S Specification FileStore Service Manual 88 2.7 Safety standards The equipment is designed and manufactured to comply with

Page 162

Chapter 2 E40S/E60S Specification FileStore Service Manual 89 Operating: 10g ½ sinusoid 10ms, maximum repetition rate once every 10 seconds.

Page 163

Chapter 2 E40S/E60S Specification FileStore Service Manual 90

Page 164

Chapter 3 E40S/E60S Disassembly and assembly FileStore Service Manual 91 3. E40S/E60S Disassembly and assembly DANGER Removing the cover of

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