ACT apricot Service Manual Download Page 49

Page: 49 / 305

Summary of Contents for apricot

Page 1: ...apricot Service Manual...

Page 3: ......

Page 4: ...drive version Please refer to relevant sections for variations ACT International Ltd wishes to acknowledge the co operation of the following companies for giving their permission in allowing the repr...

Page 5: ...ty precautions Recommended tools and equipment Assembly and disassembly Electrical system Electronic system Memory map Set up procedures Trouble shooting Diagnostic programs Expansion Boards Wincheste...

Page 6: ...ge Monitor A 1 Assembly 5 6 Mnemonics 7 34 Disk Drives 5 7 Parts Description 1 5 Front Bezel and Door 5 8 Main Chassis 5 9 Printer Cable Power Supply 5 9 Parallel 6 20 Handle 5 9 Serial 6 21 Speaker 5...

Page 7: ...1 __ G_E_N_E_RA_L_D_E_SC_RIPT __ I_O_N_ II 2J I Features II Specifications III Individual units...

Page 8: ...Kbytes each side Display I O 9 green P39 phosphor with antiglare filter 80 characters x 25 lines Resolution 800 x 400 pixels 1 x RS232 V 24 serial port 1 x 8 bit Centronics parallel printer port Opti...

Page 9: ...0 26 4cm deep Keyboard 16 42cm wide x 2 5 3cm high x 7 lB 5cm deep Weight Systems box 14 21bs 6 5 kg Monitor 9 11bs 4 1 kg Keyboard 3 31bs 1 5 kg Power requirements 200 to 240 VAC 47 to 63 Hz or 100 t...

Page 10: ...Microscreen tm 5 Touch Sensitive Keys S 6 FixedFunctionKeys 7 Door 8 Brightness control 2 II I illll I9 Video Cable 10 Keyboard Cable 11 Keyboard connector 12 Centronics connector 13 Serial connector...

Page 11: ...1 11 GENERAL DESCRIPTION SYSTEMS UNIT External 1 Systems Base 2 Systems Cover 3 Rear Panel 4 Facia Bezel 5 Door 6 Expansion Plates 7 Handle 8 Base Clip 9 Base Button 2 10 Keyboard Cable Clips...

Page 12: ...Gf Nf LDf SC U flON ill NtONl tOltBx ter1l li 1 1 Monitor Bezc 2 Monitor Base 3 Moni tor CO J cr 4 Peuesta...

Page 13: ...I GENERAL DESCRIPTION KEYBOARD External 1 Keyboard Bezel 2 Keyboard Base 3 Battery Cover 4 Contrast Wheel 5 Reset Button 6 Reset Plate 5 4 6...

Page 14: ...GENERAL DESCRIPTION rn SYSTEMS UNIT Internal 1 Disk Drive 2 Power Supply 3 Motherboard 4 AC Sub Assembly 5 Main Chassis 6 Chassis Bridge 7 Expansion Slots 8 Loudspeaker...

Page 15: ...Fil L18 GENERAL DESCRIPTION MONITOR UNIT Internal 1 Wire Frame Monitor 2 Top Screen 3 Bottom Screen 4 LH Monitor Bracket 5 RH Monitor Bracket 6 Video Cable 7 Brightness Control 8 Sunflex Screen 8...

Page 16: ...GENERAL DESCRIPTION rn KEYBOARD UNIT Internal 1 Keyboard Assembly 2 Keyboard Cable 3 Battery Connector 4 Battery 5 Reset Switch 6 Brightness Control 7 LCD Microscreen...

Page 17: ...I __ IN_ST_ _L_L_AT_I_O_N________I...

Page 18: ...he temperature of the machine is allowed to stabilise for approximately 30 mins if it is moved from one extreme to another 4 Do not obstruct any of the ventilation grills 5 Under no circumstances must...

Page 19: ...1o o ooo _ S_A_F_ET_Y_P_RE_C_A_U_T_IO_N_S __ aI I General Safety Precautions II Fuses ill Power Supply...

Page 20: ...allation of any expansion boards or modifications be carried out by an authorised dealer the end user should not dismantle the units 3 Replacement parts should be of the type and rating specified by t...

Page 21: ...r Supply The power supply is protected by its own fuse within the power supply casing Since the power supply will automatically shut down in the case of an external fault the failure of this fuse indi...

Page 22: ...that any kind of testing or servicing be carried out with the top cover removed the following precautions should be taken 1 Use 1 1 isolation transformer in the line 2 Service only in a high voltage t...

Page 23: ...RECOMMENDED 1 m L TO_O_L_S_A_N_D_E_Q_V_IP_M_EN_T_ a LJ...

Page 24: ...nob J 609 011 0A Lead Screw Tool J 609 136 0A Motor Speed Adjuster 7 700 754 01 Geared Driver J 609 017 OA Level Disk 8 960 009 31 Alignment Disk 8 960 009 32 Cleaning Disk 8 960 009 39 ACT Part Numbe...

Page 25: ...________ 115l _ DISASSEMBLY LJ I Rear Panel and Top Cover II AC Sub Assembly ill Motherboard IV Chassis Bridge V Disk Drives VI Front Bezel and Door VII Main Chassis Power Supply Loudspeaker and Handl...

Page 26: ...isassembling machine 2 Unless specifically noted reassembly is the reverse of disassembly and will not be described unless necessary 3 Do not mix screws length diameter 4 A number in parenthesis thus...

Page 27: ...op cover by lifting at rear slightly and disengaging lip from front bezel 3 Remove AC input connector on P S U and all earth leads Assembly Reverse of above procedure II AC SUB ASSEMBLY 1 Remove back...

Page 28: ...Power 1 Remove back panel and top cover as in Section I 2 Remove M3 x 6mm screws from rear edge of motherboard 5 3 Remove power and ribbon cable from both disk drives 4 Remove DC power cable 5 Remove...

Page 29: ...BRIDGE ASSEMBLY i Remove rear panel and top cover as in Section I ii Disconnect power and ribbon cables from disk drives iii Slacken M3 x 6mm screws 4 iv Lift chassis bridge assembly away from main ch...

Page 30: ...and spring will be left in front bezel note orientation of button These components are a loose fit do not lose WARNING Chassis is jigged in factory do not move inner side cheeks Assembly 1 With assemb...

Page 31: ...ove disk drives as in Section V 2 Remove door springs 2 and door pivot screws 2 3 Remove M3 x 6mm screws securing chassis to front bezel 6 4 Door can be separated from front bezel by carefully springi...

Page 32: ...as in Section IV 3 Remove M4 x 12mm screws 4 securing main chassis to base moulding 4 Remove DC power cable and loudspeaker cable 5 Lift off main chassis taking care not to damage sliding handle 6 Pow...

Page 33: ...EMBLY AND DISASSEMBLY vm MONITOR e t Q o 1 Brightness Control 2 4M3 x 12mm rrrrrrrrrrrrrrrrrrrrrrrrrrnr 10 ol r 2 1 LJ It J L I Rear 1 Brightness Control 2 4M3x10mm 3 4M3x6mm 4 7 SelfTappers 5 Cable A...

Page 34: ...g cable assembly and disengage grommet from base moulding Detach screen from chassis 1 6 Remove M3 x 10mm screws securing front bezel to side cheeks 4 7 Remove M2 x 6mm screws securing base moulding t...

Page 35: ...ully separate the two mouldings unplug membrane keyboard and lift off front bezel 4 Withdraw keyboard assembly disengaging brightness control and reset switch from reset plate 5 Remove reset plate and...

Page 36: ...ASSEMBLY AND DISASSEM BLY m UiJ 1 Mouse Port 2 Keyboard Cable 3 Touch Keyboard 2 4 1 Reset Plate 2 Reset Button 3 Contrast Button 4 Keyboard Cable 5 Base...

Page 37: ...r _E_L_EC_T_RI_C_A_L_S ___ Y_ST_E_M_ _ __I I Interconnection Diagram II AC Sub Assembly ill Conversion from 240V to 11SV IV Earthing V Cable Connection VI Expansion Details VII Async Cable Vill Printe...

Page 38: ...STEM W I INTERCONNECTION DIAGRAM 3 2 1 Disk 2 Disk 3 Loudspeaker 4 PCB 2 4 Interconnection diagrams cable forms and connector pin details are included to aid the engineer in providing a quick and effi...

Page 39: ...a The fan is a 12W device and designed to extract air from the unit b The switch will be illuminated when the unit is switched on c The fuseholder is a 20mm type and made from fire retardant material...

Page 40: ...Yes Input Fuse No Yes ACT Part Number Voltage Part 240V Fan 11001521 Switch 11001821 Input Fuse 11002121 The Input Fuse rating is T2 amp 240V T3 amp 11SV 11SV 11002521 11002621 11002721 1 To modify t...

Page 41: ...S 2 LOCK NUTS PIN 11001621 4 OFF ARE REQUIRED ON FAN STUDS 3 CABLE TIES PIN 11000000 3 OFF ARE REQUIRED TO KEEP WIRING CLEAR OF FAN BLADES POWER SUPPLY CABLE PIN 110001 41 DEV CB OOS CABLE pin 110002...

Page 42: ...TS 4 RTS 6 DSR 7 8 DCD 15 RXC 20 DTR 24 TXC 13 1 0000000000000 000000000000 25 14 Direction Frame Ground Transmit Data Out Receive Data In Clear to Send In Ready to Send Out Data Set Ready In Signal G...

Page 43: ...Out 19 OV 2 DO 20 OV 3 Dl 21 OV 4 D2 22 OV 5 D3 8 bit BiDir 23 OV 6 D4 data bus 24 OV 7 D5 25 OV 8 D6 26 OV 9 D7 27 OV 10 Ack In 28 OV 11 Busy In 29 OV 12 Paper Empty In 30 OV 13 Select Out 31 NC 14 O...

Page 44: ...erboard End Pin 1 2 3 6 7 8 Signal 12V OUT IN GROUND 12V OV Wire Colour RED YELLOW WHITE SCREEN BLUE GREEN Female 4 Keyboard Cable Keyboard End Pin A B C E F 10000001 ABC EF Signal OV 12V 12V OUT IN W...

Page 45: ...TNESS CONTROL BRIGHTNESS CONTROL NC HORIZONTAL SYNC 12V VIDEO VERTICAL SYNC VIDEO SCREEN 10 Wire Colour GREEN GREEN YELLOW BLUE BROWN YELLOW RED WHITE BLUE 6 Monitor Cable Motherboard End Pin 1 3 4 5...

Page 46: ...CK YELLOW 8 Disk Drive Signal Ribbon Cable Red Stripe Denotes Pin 1 4 3 2 1 Motherboard 1 25 00 occco CCCCCC ooccccccccccc 2 26 Pin Signal 2 DRIVE SELECT 0 4 DRIVE SELECT 1 6 DIRECTION 8 STEP 10 WRTDA...

Page 47: ...l Wire Colour 1 NC 2 12V YELLOW 3 NC 4 12V VIOLET 5 NC 6 12V YELLOW 7 NC 8 5V RED 9 5V RED 10 NC 11 OV BLACK 12 OV BLACK 13 OV YELLOW GREEN 10 DC Power Cable Motherboard End Pin 1 2 3 4 5 6 7 Signal O...

Page 48: ...DD EXT1 16 DD INT3 15 DD AB6 14 DD ABS 13 DD DB9 12 DD DBll 11 DD DB13 10 DD DB15 9 DD AB2 8 DD AB4 7 DD ABO 6 DD AB14 5 DD AB15 4 DD AB17 3 DD AB19 2 DD NMI 1 DD 32 12V 31 5V 30 DBl 29 DB3 28 DB5 27...

Page 49: ...ommand Output MRDC Memory read command Output IORC Input output read command Output MRDY Memory ready Input IORDY Input output ready Input RES System reset Output CLKIS 15 MHz clock signal Output CLKS...

Page 50: ...c Various control and timing signals d Power supply outputs Description Electrical Specification Current Consumption Maximum allowed current consumption of a circuit board fitted into an expansion sl...

Page 51: ...Vol O SV with maximum low output state sink current of SmA All the remaining inputs are control inputs and require to be driven by an open collector driver stage The input control lines on the System...

Page 52: ...____ 0_TH_E_R_S_ _ _1 _0_ 1_____ _________ 3 5 BOARD AREA NOT AVAILABLE 3 HOLES 3 851 11 1 DIA AFTER THROUGH HOLE PLATING MAIN PCB COMPONENT SIDE COMPONENT CLEARANCE 6 51 11 1 DIA 64 HOLES ON 0 1 PITC...

Page 53: ..._ 1 2 _____ 3 3 _____ 2 4 _____ Wired IBM Connector B Female 25 Pin 1 3 2 J together Wired 5 8 together 4 6 _____ 20 7 _____ 7 20 _____ 6 Modem Connection Cable APRICOT Connector N Male DB 25 HOST Con...

Page 54: ...re of the parallel type and will work with the Apricot as long as the interface cable supplied with the printer is used The Apricot defaults to the parallel port on switch on and no re configuring of...

Page 55: ...as specified by the printer manufacturer Below is given a suggested wiring but is by no means correct for every printer and is only given as a possible starting point Apricot Printer 1 ____ 1 2 ____ 3...

Page 56: ...L _E_L_E_C_TR_O_N_I_C_S_Y_ST_E_M _______ I 2J I Outline of System II Integrated Circuit Catalogue ill Mnemonics IV Memory Map V Ram Expansion Card Details VI Modem Card Details...

Page 57: ...n depth study but an overview using block diagrams For a more detailed insight into the circuitry refer to the Apricot Technical Reference Manual In addition to block diagrams section IT is a catalogu...

Page 58: ...the output of one section forms the basic input to the next The CRT controller generates in addition to vertical and horizontal sync pulses memory addresses MAO MAIO These addresses are sequentially...

Page 59: ...C 0 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 D 0000000000000000 E 0000000000000000 F 0000000000000000 Font Cell Since each character requires 2 bytes characters can only be written on even address boundaries Th...

Page 60: ...ions The remaining address bits are made up as follows A16 A17 A18 A19all are osince the fonts must be within the lower 64K of the lower 128K In character mode the first 10 pixels are displayable the...

Page 61: ...in conjunction with AB17 which routes the RAS and CAS signals to the A or B 64K memory block SCREEN b ICSS and 60 allow the screen RAM output data to address the lower 64K bytes of memory bank A REFR...

Page 62: ...tions and permits concurrent communications processing 8288 The processors are wired in maximum mode and command and control timing is accomplished by means of a 8288 Bus Controller Status lines SO Sl...

Page 63: ...mand available at the expansion port AMWC Advanced Write enable signal to memory Memory Write Command MRDC Memory Enables data from memory to Read Command external data bus via LOE signal IC62 82 IOWC...

Page 64: ...signals for the system are generated by a 8284A In addition to clock pulses this chip also provides a System Reset and Ready synchronization A fundamental frequency of 15 MHz is derived from the crys...

Page 65: ...RRUPT INTl PIC 07 flOPPY DISK CONTROllER INTERRUPT FOC INT IR4 8259A wR R i SYSTEM CONTROL BUS AIE SERIAL INTERfACE IRS INTERRUPT SID INT TIMER COUNTER 0 CS OUTPUT TMR OUTO IR6 PIC SELECT INTERRUPT fR...

Page 66: ...ls CSC or IW Data is latched from the I O bus via an octal latch ICI8 under the control of the same signals When data is latched in it raises WE Pin S to confirm the data is in The SN76489 uses a fund...

Page 67: ..._____ oJ P RIPt RALS DIITA IUS D OCTAL D TYPE LATCH CIC RtADY IIlIDlD SG IlJT SN76489 Figure 1 Sound Generator block diagram SG Pin Definition DO to D7 CK CE WE READY AUDIO OUT Data bus connection 2 M...

Page 68: ...egister locations are detailed below Register Address Command 40H Status 40H Track 42H Sector 44H Data 46H Head load is not derived from the FDC but is generated separately from the 8255 parallel driv...

Page 69: ...e views the three ports and control register as peripheral devices located as follows Port Address A 48H B 4AH C 4CH Control Register 4EH The interface performs the following functions within the syst...

Page 70: ...l control of the head load for an efficient two drive system PB3 Generates DON to enable the display to be switched on and off PB4 Generates AIG to select either alpha numeric or graphics mode PB5 Ena...

Page 71: ...ACK BUSY A Ai Ai SYSTEM RESET fROM CLOCK CiE NERATCR AD RES PB7 Pp 6 S 1 Dn IKLMieE1 VIA A DtCCDtR Ale SELECT TO CRT CONTROL PB DISPLAY ON I R TO VIDE D INTERfACt PBO HLD TO fLOPPY DISK DRlVtS VIA AN...

Page 72: ...ster which determines the operating mode of the counters The port address locations are detailed below Register Address Counter 0 58H Counter 1 5AH Counter 2 5CH Control Word 5EH CLK1 and CLK2 are 2 M...

Page 73: ...RD WR TMR SELECT CS A2 Al Al AO TIMER OUTPUT TO INTERRUPT CONTROLLER PIC IR6 Figure 1 Programmable Interval Timer block diagram TMR Pin Definition CKO CKI CK2 OUT 0 OUT I OUT 2 DO to D7 RD WR CS AO Al...

Page 74: ...e CPU from the parallel port via ACK BUSY and FAULT lines iv Provides a Ready function to the 8089 during DMA operations The device is located at position 60H The port locations are detailed below Por...

Page 75: ..._ _ _ _ I LOcK fROt 80861 1089 r D 2 IIftz I I DIVIDER L ___ I I PARALLEL INTERFACE DECODER SiiiS Lffi It2 IIi1 1 TO DRQ2 IJf UP 280 S10 0 iiiCTXCi ma rnr fim URQ iii iii C II C J QJ RESET iffi iiTRi...

Page 76: ...Port C 4E Write PIa control register 50 CSC Sound Write Sound generator command 52 54 56 58 CSD Time Counter 0 SA Counter 1 5C Counter 2 5E Write Control 60 CSE SIO Channel A data 62 Channel A contro...

Page 77: ...I INTEGRATED CmCUIT CATAWGUE 1 Ie 113 19 25 44 45 46 73 79 28 41 1 NAND 74L500 74L510 AB Y 74500 7438 A B Y 0 0 1 1 0 1 0 1 1 1 1 0 I Ie 142 78 I AND A B Y 74L508 AB Y 74L511 0 0 0 1 0 0 0 1 0 1 1 1 1...

Page 78: ...SSING A ELEHOfTS DATA IUS I 8086 CPU I IUS I 8089 lOP I A ClJfTIU IUS L N J 7 7 PR J4 2 1 DRAM RS232 DUAL LINK IJ EJ KEYBOARD UNIT Imc 1 IKlCRDctWUTtR I l tRl PeRT 4 I I K MD SDUAL urtC SERIAL I stlJl...

Page 79: ...m II c 13 2 8 8 10 27 3 3 2 0 1 74LS02 74LS27 NOR Z C y IIC I51 74 84 89 80 11 47 I NOT 74LS04 74LS14 I IC 123 I EXCLUSIVE OR 74S86 Z D Y A B Y a a 1 1 a a a 1 a 1 1 a 1 m IOUTI a 1 1 a A B y a a a a...

Page 80: ...Q Q L H X X X H L H L X X X L H L L X X X H H H H t L L Q Q H H t H L H L H H t L H L H H H t H H TOGGLE H H H X X Q Q IC9 Generates Write Enable to static rams when selected via CSS Switches multipl...

Page 81: ...ocessor or screen to drams IC34 Detects if there is enough time to do a processor access to ram If not 1 wait state via RDY1 is inserted IC21 Generates Display Enable from CRT controller 1 IC 112 74S7...

Page 82: ...under control of attributes IC90 Wired as a shift register and provides either 1 or 5 wait states IIe 118 64 70 72 62 82 I 74LS373 D TYPE LATCHES D Q ENABLE OIP ENABLE Function Table Output Enable Ou...

Page 83: ...sldatabus and latches address via signal ALE IC62 82 Enables data from drams to databus via signal LEC and LOC I IC 155 60 74LS374 D TYPE LATCHES D Q CLK O PENABLE Function Table Output CLOCKD Outputs...

Page 84: ...l data bus from parallel driver circuit 8255 to Centronics connector IC65 66 Bi directional data bus to processors enabled by DEN and direction controlled by DIR IC54 Bi directional buffer connecting...

Page 85: ...A 2Y Function Table Inputs Outputs Gl G2 lA 2A lY 2Y L L H H H H L H H H H Z H L H H Z H H H H H Z Z IC6 Driver chip for control inputs outputs on Centronics parallel port IC48 Driver chip enabling re...

Page 86: ...H X L L L H X H H IC38 39 40 Selects whether the CRT controller or processor has access to srams under control of CSS IC43 Selects which bank of 128K dram is selected by means of AB17 and switched by...

Page 87: ...be Output Inputs B A CO C1 C2 C3 G y X X X X X X H L L L L X X X L L L L H X X X L H L H X L X X L L L H X H X X L H H L X X L X L L H L X X H X L H H H X X X L L L H H X X X H L H Allows the switchin...

Page 88: ...L L H L H H L H H H H L L H H H H H L H H H L H L L H H H H L H H L H L H H H H H H L H L H H L H H H H H H H L H H H H H H H H H 74LS139 2 TO 4 DECODER Function Table Inputs Outputs Enable Select G B...

Page 89: ...H L 11 H L H H 12 H H L L 13 H H L H 14 H H H L 15 H H H H Divides 4 MHz clock by 2 or 16 to provide fundamental frequencies to timer I IC 126 I 74LS163 SYNCHRONOUS 4 BIT COUNTER Loaded with either 8...

Page 90: ...H X X Q Q L i H H L L i L L H X L X Q Q Latches attributes before being gated together 1IC 137 I 74LS393 4 BIT BINARY COUNTER Refresh counter clocked by CCLK gated by RAS IIC 169 87 I 74LS299 8 BIT S...

Page 91: ...TK Strike through INVERT Invert MRC Memory Read Command 19 1 AMWC Advanced Memory Write Command 19 9 MWC Memory Write Command TP3 MC Memory Access Command 9 15 DE Display Enable 21 5 DE Display Enable...

Page 92: ...2 MHz Clock 7 14 4MHZ 4 MHz Clock 81 1 CCLK Inverse of Character Clock 35 6 PCLK Peripheral Clock Z80 SIlO 92 2 FGND Frame Ground VIDEO Serial Video TP5 OVM Zero Volts Monitor 12VM 12 Volts Monitor GN...

Page 93: ...Boot Prom Chip Select 67 7 CSW 1 0 Port Address 58 5 CA Channel Attention 8089 32 13 DBUS Data Bus INT2 Interrupt Request 2 Ext 51 4 INT3 Interrupt Request 3 Ext 51 2 INT4 Interrupt Request 4 Floppy D...

Page 94: ...DMA Request 2 42 3 NMI Non Maskable Interrupt 89 10 Ext 1 External Terminate CHI 51 10 Ext 2 External Terminate CH2 51 12 IORDY Input Output Ready 78 9 RESIN Master Reset from Keyboard 92 11 LOCK Ind...

Page 95: ...4208 16000H 90112 6K 32K EOOOH 57344 D800H 55296 2K 4K C800H 51200 24K 6800H 26624 8K 4800H 18432 8K 2800H 10240 8K 0800H 2048 0400H 1024 OOOOH 0 lK lK DESCRIPTION USER RAM MS DOS 2 0 KEYBOARD TABLE S...

Page 96: ...S_E_T _U_P_P_R_O_C_ED_U_RE_S __ al I Keyboard Clock Set Up Procedure IT Floppy Disk Controller Set Up Procedure...

Page 97: ...ET UP PROCEDURES I KEYBOARD CLOCK OSCILLATOR SET UP 1 Apply power to keyboard no data 2 Frequency counter scope to pin 37 of 6301 3 Adjust variable cap C2 to give 976 562 uS 01 uS i e 976 55 976 57 uS...

Page 98: ...te Precompensation VR2 to give 125 nS 10 nS 7 Scope to pin 5 8 Adjust RPW Read Pulse VR1 to give 250 nS 10 nS FLOPPY DISK CONTROLLER SET UP REV G 1 Switch on 2 Short out pins 1 and 2 3 Scope frequency...

Page 99: ...Pots 2 s lOOns Figure 2 Date Rate MEASURE AT n MID POINT 125 ns 10 ns 2 s PERIOD 500 kHz DATA RATE VCl 125 ns PULSE WIDTH 10 ns WRITE PRECOMPENSATION VR2 Figure 3 Write Precompensation Pulse MEASURE A...

Page 100: ...D_ __ G_N_O_ST_I_C__________ I I Diagnostic Boot Prom Documentation and Error Codes II Diagnostic Programs...

Page 101: ...Apricot logo appears in the top right hand comer of the screen with the word Testing in field a If all tests pass the field a is replaced with System OK if there has been a diagnostic failure the a fi...

Page 102: ...isk 07 Bad Media corrupt disk media block 08 Sector Not Found unformatted or corrupt disk 11 Bad Read corrupt data field on disk 12 Disk Failure disk hardware or media fault 20 Diagnostic PROM Checksu...

Page 103: ...l A of Z80 SIO failed test 31 Diagnostic Keyboard Failure keyboard initialisation test failed 32 Diagnostic Timer Accuracy Failure CTC accuracy check against timing loop failed 33 Diagnostic Timer PIC...

Page 104: ...I EXPANSION BOARDS 11 10 I...

Page 105: ...g1ion D D D II Boards...

Page 106: ...Contents 1 General Installation Instructions 2 Expansion Board Power Requirements 3 256K RAM 4 128K 512K RAM 5 Modem 6 Lan Board Expansion Board 1...

Page 107: ...es the number of screws to be slackened or removed to remove that particular part 5 The expansion slot is polarised to prevent incorrect insertion 6 A single or double board may be installed into any...

Page 108: ...board attached i e a colour or modem card then it must be plugged into the slot adjacent to the power supply as shown above Plug in all cables as per relevant instructions and jumper pins where necess...

Page 109: ...gaging lip from front bezel 3 Expansion slot is adjacent to the power supply Plug in all cables as per relevant instructions and jumper pins where necessary The expansion plate on the rear panel may b...

Page 110: ...4 Apricot Portable Removal of Apricot Portable cable manager 00000000000 Installation of expansion board into Portable When installation is complete clip the cable manager in place Expansion Board 5...

Page 111: ...eqllDiremell1Jts Expansion Board 128K RAM 256k RAM 512K RAM Lan Winchester Modem Colour 6 Expansion Board 5u O 5A O 5A O 49A O 35A O 6A O 37A 1 3A Construction Single Single Single Single Single Doubl...

Page 112: ...apacity of either 512k or 768k NOTE This board can not be fitted to an F1e Any expansion slot may be used for individual boards A general description of installation procedure is contained at the begi...

Page 113: ...ontrol of AMUX IC 19 with inputs DMUX and AB 17 controls the selection of high or low memory pages Board selection via SW 1 is generated by the IC 18 and IC 19 combination resulting inCS Timing for th...

Page 114: ...mory Forms 256K x 8 memory I IC I 9 10 74LS373 D Type Latches D Q Enable DIP Enable Function Table Output Enable Outputs Control G D L H H H L H L L L L X Q H X X Z Latches high and low order bytes to...

Page 115: ...ring a memory write under control of DMUX 1 IC 1 13 14 Multiplexes 16 address bits onto 8 bit DRAM address bus under control of AMUX 1 IC 115 74LS 163 Synchronous 4 Bit Counter Counts from 0 to 7 unde...

Page 116: ...s Outputs Preset Clear Clock D Q Q L H X X H L H L X X L H L L X X H H H H l L H L H H l H L H H H L X Q Q Latches timing and control signals RAS CAS LATCH 1 LATCH2 ABO AND BHE clocked by CLK5 1 IC 11...

Page 117: ...Pin CLK5 5MHz Clock 18 1 ALE Address Latch Enable 18 3 CS Chip Select 20 2 MRDC Memory Read Control 20 1 WE Write Enable 16 5 BHE Bus High Enable 16 14 RAS Row Address Strobe 17 2 CAS Column Address...

Page 118: ...IC11 IC14 74LS257 IC15 74LS163 IC16 74S288 IC17 74LS174 IC18 74LS10 IC19 74LS86 IC20 74LS32 C1 C6 Cap 0 01 mfd C7 C14 Cap 100 mfd 6 3V D1 Diode OA47 R1 Resistor 3K3 1 4W 3 way SIL Jumper Link RN1 330...

Page 119: ...pacity of either 384k 512k or 768k Note The F1e ram upgrade is a special 128k ram board with a base address of 128k The 512K and 256K ram board cannot be fitted at present Any expansion slot may be us...

Page 120: ...ignals to provide RAS CAS enable AD and BHE are decoded to provide CAS enable for the upper and lower memory banks After data transfer is completed the memory ready signal is returned to the Apricot A...

Page 121: ...2 input exclusive or 8 74LS373 Octal D type latch 9 74LS373 Octal D type latch 7B 74S10 Triple 3 input pos nand gate 11 26 4164 20 64K 256K drams IC 14 74LS375 4 Bit Bistable Latch Function Table Inp...

Page 122: ...0 1 1 1 0 IC7 AI 1 fitted on 512K memory boards to decode address lines A 18 19 to give chip select for memory controller A 2 latches data into octal D type from drams 74LS10 3 Input Positive NAND Ga...

Page 123: ...DC 4 Mnemonics Signal Description Ie Pin No A 1 19 Address lines ALE Address latch enable IC5 14 AMWRTC Advanced memory write command IC5 16 CLK5 5MHZ clock IC5 18 AO Address 0 IC3 2 BHE Bus high enab...

Page 124: ...N Write enable input IC1 45 RGCK RAS generator clock IC1 2 RFCK Refresh clock IC1 RFSH Refresh IC 1 5 MO Mode control IC1 3 RASIN Row address strobe in IC1 48 MAO 8 Memory address IC1 RFRQ Refresh req...

Page 125: ...sition IC8 9 9 11015521 SN74lS373 2 ICl1 26 10 11012521 4164 20 Dram 16 RP1 2 3 11 11131221 Res Pak 47R x4 Sil 3 Rl 5 12 11131321 Res 1Oohm 1 4W 10 Carbon 2 R2 3 4 6 13 11017021 Res 3K3 1 4W 10 Carbon...

Page 126: ...h Telecom Socket Until The Modem Has Been Correctly Installed In The Apricot Computer Warning Thi Modem Is Not Suitable For Use With Some Call Connect Systems With Digital Setup And Cleardown Commands...

Page 127: ...d Transmit Frequency Receive Frequency Answer Rate Space Mark Space Mark Tone CCITTV21 Originate 300 1180 980 1850 1650 Answer 300 1850 1650 1180 980 2225 CCITTV23 Originate 75 1200 450 390 2100 1300...

Page 128: ...listed in British Telecom telephone directories It must not be used with payphones partylines or certain types of call connect systems that do not use two wire signalling systems Bell Tinkle When the...

Page 129: ...ions in any way not authorised by BABT or it is used with or connected to 1 Internal software that has not been formally accepted by BABT 2 External control software or external control apparatus whic...

Page 130: ...with other people in a local area network Any expansion slot may be used for individual boards After checking the network device address follow the general installation instructions at the beginning...

Page 131: ...1 1 1 1 17 1 1 1 1 49 1 1 1 18 1 1 T i 50 i i 1 19 i i i 51 i i 20 i i T i 52 i i T 21 i T T 53 i i 22 1 T i 54 i T 23 T T 55 1 24 T i T i 56 i i T 25 1 1 T 57 i 1 26 1 1 T 58 i i 27 T T 59 i 28 1 i...

Page 132: ...consists of an MC 6801 microprocessor the MC 68A54 communications controller and a corvus gate array 6801 Microprocessor The 6801 is an eight bit microprocessor containing 2048 bytes of rom which sto...

Page 133: ...ecodes the address lines AB5 and AB8 to provide the base address 120H these addresses are latched by ALE and the read write status is controlled by 10RC AIOWC A 4K byte ram IC4 IC5 is used to store in...

Page 134: ...ode OSC r Circuits I A p R I C 0 Corvus Local Gate Bus Array T Address B Bus U S Data Data I Bus f Buffers Board Block Diagram 3 Connector Pinouts Lan Board Network Station Cable E jf fI Black r gj Re...

Page 135: ...Network Tap Box 1 Standard station node box Trunk cable should be a continious length where possible 2 Termination box at each end The termination box can be used as a standard node 30 Expansion Board...

Page 136: ...Catalogue ICNo Component Description IC1 Corvus gate array IC2 6801 Corvus processor IC3 68A54 CorvusADLC IC4 6116 Skinny dip ram IC5 6116 Skinny dip ram IC6 TBP24510 Prom IC7 SN75176 RS422 line driv...

Page 137: ...eration G Control DIR L L B Data to A Bus L H A Data to B Bus H X Isolation IC 11 bi directional data bus from Apricot expansion bus to corvus gate array I IC 17 SN75176 RS422 Balanced Line Driver IC7...

Page 138: ...clock output IC 1 63 DSR Data service request IC 1 55 RTS Request to send IC 1 59 IN OUT Transfer IN or OUT of memory IC 1 64 EOUT 1 25 MHz clock output IC 1 57 IRQ Interrupt request IC 1 60 XTAL2 5 M...

Page 139: ...1013321 SN74LS04 1 IC 11 11 11015221 SN74LS245 1 XTAL 12 11156421 10MHz Oscillator 1 C1 13 11125521 Cap 47uF 10V Electrolytic 1 C2 C 11 14 11019021 Cap 0 1 uF Decoupler 10 C12 15 11139421 Cap 220pF Ce...

Page 140: ...1 NetwOlkOia91ams erm nat ng ap Box runk Cable F e Server erminating ap Box Basic Unbranched Network configuration Expansion Board 35...

Page 141: ...Printed in England by Studio Press SPI0485 2 5MIAT...

Page 142: ...__ W_ __ C_H_ES_T_E_R________ l...

Page 143: ...Winchester D D D L o I_ _ _ _ _ 1...

Page 144: ...Contents 1 Assembly And Disassembly 2 Electrical System 3 Electronic System 4 Parts List 5 Circuit Diagrams Winchester 1...

Page 145: ...in parenthesis thus 4 indicates the number of screws to be slakened or removed to remove that particular part Warning When bench testing or working on a drive a foam mat should be placed underneath t...

Page 146: ...Remove A C input connector on P S U and all earth leads Assembly Reverse of above procedure 3 Chasis Bridge Assembly 1 Remove rear panel and top cover as in Section 1 2 Disconnect power and ribbon cab...

Page 147: ...4 Winchester Disk Drive 1 Remove chassis bridge assembly as in Section II 2 Remove 9 x 36 unc screws 4 3 Slide Winchester drive out Assembly Reverse of above procedure 4 Winchester...

Page 148: ...2 Electrical S stem 1 interConnection Diagram 2 Connector Pin Outs 1 InterConnection Diagram 3 II 4 1 FlopPY Drive 2 Winchester Drive 3 Loud Speaker 4 PCB 3 5 contro er 4 5 Winchester 5...

Page 149: ...2 6 Write Gate 8 Seek Complete 10 Track 00 12 Write Fault 14 Head Select 0 16 18 Head Select 1 20 Index 22 Ready 24 Step 26 Drive Select 1 28 Drive Select 2 30 Drive Select 3 32 Drive Select 4 34 Dir...

Page 150: ...M read data MFM read data GND Winchester Cable Drive End Control Interface 34 2 33 1 GND Pin Signal Pin Signal Name 1 2 Reserved 3 4 Reserved 5 6 Write gate 7 8 Seek complete 9 10 Track 0 11 12 Write...

Page 151: ...Drive Power Cable 4 3 2 1 4 3 2 1 Co 0 0 oj Drive Motherboard Pin Signal Wire Colour Signal Wire Colour 1 12V Yellow 5V Red 2 OV Black White OV Black 3 OV Black OV Black White 4 5V Red 12V Yellow 8 W...

Page 152: ...ard acts as the interface between the processing system and the Winchester disk drive Description The controller is broken into seven parts the WD 1010 05 Data seperator write precompesation addressin...

Page 153: ...RIL BUS IHl2 IRDY ADDRESS AND CONTROL DECODING DATA BUS DO D7 BUS SECTOR CDJNTER RESET HIICR BYTE COUNTER RESET TRANSCEIVER t jINTRQ t j r j f t RE WDIOIO 05 WINCHESTER DISK CONTROLLER If WI N CH E ST...

Page 154: ...the WD 1010 05 The write data output of PAL2 is converted to balanced format by the differential line drive Addressing The PAL 1 is used to interface the address bus from the Apricot to the Winchester...

Page 155: ...This 8K x 8 or 2K x 8 bit buffer acts as a temporary store for all data transfers Data is written into the buffer from the Apricot and then access is passed to the WD 1010 05 which transferes the data...

Page 156: ...264P 15 NOT FITTED SN75116 IC 10 Winchester disk controller Data separator Program array logic Program array logic Octal bus tranceiver 8 bit addressable latch Dual4 bit binary counter Dual 4 bit bina...

Page 157: ...Ie 12 Seven buffers are used to buffer controller signals to the Winchester disk drive The remaining buffer is used as an input to a 4 bit binary counter for the sector clock IC 13 Buffers used to buf...

Page 158: ...KSEL I IC I 9 AM26502 Dual Retriggerable Mono Stable Monostable triggered by read data will detect all O s or 1 s and produces DRUN DRUN is used by the WD1010 05 to indicate pre amble all O s I IC I 5...

Page 159: ...bus PAL 1 Ale Address latch enable PAL 1 5 IORC Input output read command PAL1 2 DEN Data enable PAL 1 3 IOWC Input write command PAL 1 4 DBO 7 Data bus IC5 2345 6789 DATAEN Data enable PAL 1 15 INTR...

Page 160: ...ult IC 1 30 WC Write clock IC1 25 RCLK Read clock IC1 39 RDATA Raw data IC1 37 READ GATE Read gate IC1 38 DRUN Data run IC1 34 WDATA Write data IC1 21 LATE Late write precompensation IC 1 22 EARLY Ear...

Page 161: ...Component WD1010 05 DP8460 4 PAL20L10 PAL 14H4 74LS245 74LS259 74LS393 74LS393 26S02 74274 74LS374 74LS240 74LS240 HM6264P 15 8Kx8 RAM 200nS or less Not fitted on this version SN75116 Texas 10MHz cry...

Page 162: ...1 630V Polystyrene Not fitted to this version 0 01uF Ceramic 64 way DIN 41612 right angle plug Apricot Winchester Disk Interface Part no 111115 41 Apricot Winchester Disk Power Cable Part no 111118 41...

Page 163: ...1 Winchester Controller CCT 2 Component Layout 20 Winchester...

Page 164: ...Printed in England by Studio Press SP10485 1 MIAT...

Page 165: ...I MONITOR I 3J...

Page 166: ...OCK DIAGRAM 5 MONITOR CIRCUIT BOARD DETAIL COMPONENT LOCATION 6 CONTROL DESCRIPTION 7 ALIGNMENT PROCEDURE 8 PREASSEMBLY INSPECTION AND HANDLING INSTRUCTIONS 10 CAUTION FOR SERVICING 10 MONITOR CIRCUIT...

Page 167: ...el 1 5 4 If the upper rneter indication exceeds the rnaxirnurn level Irnrnediate service is required to prevent the possibl ity of prernature cornponent failure 1 5 5 To prevent X Radiation possibilit...

Page 168: ...S Active Polarity Pulse Rate Pulse Width Amplitude Positive 15 79 kHz aOlls Low 0 0 4 O OV High 4 1 5V Input Impedance 2 Kohms min 40pF max Video Amplifier Band Width Resolution Character Area Vertica...

Page 169: ...1 7 mm bl b l 0 9 mm b2 b 2 1 2 mm CI C I 0 9 mm CZ C 2 1 2 mm c fdz 2 0 mm Fig 1 GEOMETRIC DISTORSION A2 Fig 2 CENTERING Outline of phosphor area Character 82 IA1 A21 5mm IB1 B21 5mm 3 a d a c Charac...

Page 170: ...II 10 01 s I 1111111111111111111111111111111111 High 4 1 5V O O 4V 0 Low O O 4V 0 High 4 1 5V High Sync No 1 Field nNo 2 Field rL 4 1 5V positive 1 Low Character I J 0 O 4V 0 158ms h 3 902ms 13 902ms...

Page 171: ...K 907A9 BLOCK DIAGRAM Signal GND V Sync Video in VB H Sync Non Connection Supply Common Return Vertical Deflection EHT G4 5...

Page 172: ...j CRT Anode cap Deflection yoke _H out Q44 FBT Bleeder resistance FBT FIG Ground ilii IIl ii ii B Terminal Input edge connector Bottom plate P C Board Holder Rear Chassis View V Lin VR33 i V Hold 7 j...

Page 173: ...Width L403 Adjusts the width of the active display area Sub Brightness VR67 Internal Adjusts the brightness of the raster Brightness User Supply Adjust the brightness of the raster Deflection Yoke Sid...

Page 174: ...djustment Adjust VR31 until the image becomes stable vertically as shown in Fig 5 M _____________ M I M M M Locking in Fig 5 8 Checking of height width and bright should be performed more than 30 minu...

Page 175: ...s centered on the screen as shown in Fig 11 Before this adjustment be sure to ascertain H hold Raster area Fig 11 Focus Control Adjustment Adjust VR64 until optimum focus is seen on the charac ters di...

Page 176: ...be slightly visible 4 Check CRT display for proper centering 5 Check CRT display for the specified active character area per Page 2 of this Manual 6 Check Geometric Distortion 7 Check focus 8 Check Po...

Page 177: ...K 907A9 MONITOR CIRCUIT BOARD SOLDER VIEW TNP81869 11...

Page 178: ...2SC2632 2SC940 lSC901SN 2SC1154 fiiiiiI AN5753 AN5752 Gl O AN5762 ANS763 AN516llNI D WiiiiiW MPD4011C TC40 BP MN4011B m lI R161 2 2K Ct6l 16VIO K 907A9 SCHEMATIC DIAGRAM FOR K 907A9 lnnn iiJ I 00 0 6...

Page 179: ...VR normal 3V 30V No Check Brightness circuit VR or 40V line Check Connector Pin 7 voltage level I l Check DC voltage with no load Normal Check CRT Display Check DC Fuse 2 A Normal Check the O S C Sig...

Page 180: ...level and timing of connector Normal Check Verticalty of CRT Display Adjust Vertical hold No vertical sync Check Pin 1 signal level of IC31 Normal Trouble in IC31 IC31 Replace K 907A9 Abnormal Trouble...

Page 181: ...n 3 signal level and voltage of IC41 Normal Check Pin 4 9 DC voltage level of IC41 Confirm should be varied when turn the H Hold VR Abnormal Zero or low No Normal 16 Trouble in logic side Trouble in t...

Page 182: ...Pin 12 DC voltage of 12V line Abnormal Trouble in IC31 Replace 31 Normal No K 907A9 Check deflection coil deflection coil connector Check peripreral circuit of IC31 II A vertical line in CRT Center I...

Page 183: ...tic 10j LF TaF80759 Warning Label C161 ECEA1CS100 Electrolytic 10j LF TaF80802 Service Warning Label C302 ECaM1H103JZ Polyester O Olj LF J TaF83825 Serial No Label C303 ECaM1 H472JZ Polyester 4700pF J...

Page 184: ...3K Carbon 10Kn J W Rl72 ERD25FJ562K Carbon 5 6Kn J W R30l ERD25FJ392K Carbon 3 9Kn J W R302 ERD25FJ473K Carbon 47Kn J W R303 ERD25FJ6RSK Carbon 6 8n J W R304 ERD25FJl Rl K Carbon Un J W R305 ERD25FJ56...

Page 185: ......

Page 186: ...MICRO FLOPPYDISK DRIVE OA D32W OA D32V SONY SERVICE MANUAL...

Page 187: ...access time a 1 3 X Track Nos l x Track to track time Settling Time Environmental Consideration ReliabilitY and Maintainability Preventive Maintenance PM Meantime Between Failures MTBF Meantime to Rep...

Page 188: ...R ON A SYSTEM LEVEL IS 3 2 1 Soft Error IS 3 2 2 Write Error IS 3 2 3 Seek Error IS 3 2 4 Interchange Error IS 3 3 FAULT DIAGNOSIS BY MFD CHECKER II IS 3 3 1 Normal Operation IS 3 3 2 Check Points to...

Page 189: ...stallation and Adjustment 33 4 10 WP ARM I D DETECTION ARM I COMPRESSION SPRING 3 659 609 00 REPLACEMENT 34 4 1 1 Removal 34 4 1 2 Installation and Adjustment 34 4 11 DC DISK DRIVE MOTOR BHC 2101A REP...

Page 190: ...ing Equipment 42 5 4 2 Measurement 42 5 4 3 Adjustment 42 5 4 4 Set Up Command 42 5 4 5 Measurement Command 43 5 4 6 Adjustment Command 44 5 4 7 Error Message 46 _ 5 5 STEPPING MOTOR LOAD TORQUE 46 5...

Page 191: ...am on FC 9 Mounted Board 61 6 4 2 Parts Layout on FC 9 Mounted Board 65 6 4 3 Disk Motor Circuit Diagram 67 6 4 4 Parts Layout on Disk Motor Circuit Board 69 6 5 ELECTRIC PARTS 70 6 5 1 ChipParts Repl...

Page 192: ...nance in accordance with the procedure specified in this manual as follows Example e Fasten the guide shaft with the two screws PSW2 6 x 6 Em f Fasten the head board to the chassis on the bottom surfa...

Page 193: ...ck system Disk OR D87VA 8 960 009 75 Rotatory Knob fOt Stepping Motor J 609 01l 0A Lead Screw Eccentricity Inspection Tool J 609 l36 OA Standard Disk Dummy for Cassette Up Ass y Installation Geared Dr...

Page 194: ...nto one track OSC SEL Selects such write data as 2F IF WCP worst case pattern or EXT Power Cable Special Tools WCP W1M Selects upper and lower patterns when the OSC SEL switch is set to WCP Refer to F...

Page 195: ...ively The TRK 00 WRTPRT ROY and DSKCHG indicators are lit when the respective IfF sig nals are low true The INDEX indicator blinks when the INDEX signal is applied to the board TRACK POSITION Seven se...

Page 196: ...B d gdast JII c H GR ST RDDATA jl TPB TP3 I MOTOR ON 2 SELECT 3 DKCHG 4 SELECT I S CHGRST 6 DIRTN 7 GND 8 STEP I 5 V I 9 GND 10 WRTDATA 2 GND r I GND 12 WRTGATE 3 GND t I 13 GND 14 HD LOAD IS GND 16 S...

Page 197: ...SIDE CAT S EYE 00 20 25 30 35 PATTERN 40 45 50 55 79 0 INDEX 40 SIDE not applicable I c DYNAMIC INSPECTION D ISK 30 1m OR D5IVA ED OR D5IWA DYNAMIC INSPECTION DISK 30 _ OR D52VA ED OR D52WA These dis...

Page 198: ...readable this time check radial alignment Refer to 5 4 If not readable yet the error is not recoverable 15 3 2 2 Write Error To determine whether the disk or the drive is failing the disk should be re...

Page 199: ...moment when the CHGRST switch is pressed 6 HD LOAD switch on mJ 1 The plunger Solenoid is set on and the pad lifts down IE 2 The plunger Solenoid is set active and the head lifts down 3 The clearance...

Page 200: ...4 5 32 9 31 3 29 S 28 3 26 S 25 4 24 0 22 7 21 4 20 1 IS 9 17 7 16 5 15 3 14 2 13 1 12 0 11 0 9 9 S 9 8 0 7 0 6 1 S I 4 2 3 4 2 5 1 6 0 8 0 0 O S 1 6 2 3 3 1 3 S 4 6 5 3 6 0 6 6 7 3 S O S 6 9 3 9 9 10...

Page 201: ...TRK 00 through the Cat s eye pattern signal is to be rechecked and then the head is to be set on the TRK 01 The output signal level of CN I07 5 is 3 V or more 2 Move the head until it arrives at TRK 0...

Page 202: ...er Refer to Fig 3 4 a Output Signal RDData b EE1 I Fig 3 4 Output Signal and RD Data Waveforms 1 Write WCP W M ontoTRK 79 Such waveforms as shown in Fig 3 5 a b can be obtained at eNl07 l and TP 3 res...

Page 203: ...l seconds after power is turned on the CPU auto matically stops the stepping motor and thereafter accepts no instructioh 1 Disk motor drive system 1 Drive select circuit system 1 The CSTIN signal does...

Page 204: ...TRACK Po ICI06 5 0 4 8 72 76 H 1 5 9 73 77 L 2 6 10 74 78 L 3 7 11 75 79 H 2 The harness e the TRK 00 sensor is internally attached to other mounting parts 3 Obstacles are attached to the slide guide...

Page 205: ...e calibration is to be carried out Cassette out 1 When the casette is 1 Signal has not been detecte d The signal of CNIOI S remains When the alignment ejected the DSKCHG cassette ejection Check if Low...

Page 206: ...mplete 1 ICI03 MC3470AP I When the value in both WCP Refer to 4 14 W and WCP M do not meet the specification the head is defective 2 When difference in value Refer to 5 7 between WCP W and WCP M is re...

Page 207: ...t is double side Type the number of how many retry must be conducted when read error or write error occurs EX In case it is once Type the number of how many seek retry must be conducted when the error...

Page 208: ...st pattern The test ends Test disk ready yes hit Return Pass count I In ward trkmin trkmax Track Out ward trkmax trkmin Track Read Test End I Total of Seek error otimes during 00160 times seek Seek eR...

Page 209: ...ady yes 0 hit Return Write Test Start Track End Write Test End Now You select pattern No 2 Hit any key after few seconds Test disk ready yes 0 hit Return Write Test Start Track End Write Test End 1 IR...

Page 210: ...st check RF out put lD data CRC error Off track chucking trouble Confirm head compliance Refer to wrong head compliance 5 3 chucking mechanism or radial alignment and TRK 00 sensor Refer to 5 4 WRITE...

Page 211: ...MEMO 28...

Page 212: ...ield plate with the three screws PSW2 6 x 6 Refer to Fig 4 1 c Read amplifier gain and offset adjustment Refer to 5 7 d Index phase adjustment Refer to 5 6 4 2 FRONT PANEL ASS Y REPLACEMENT 4 2 1 Remo...

Page 213: ...Panel Replacement 4 4 LED MOUNTED BOARD ASS V REPLACEMENT 4 4 1 Removal a Remove both the FC 9 FC 14 Mounted Board and shield plate Disconnect CN 102 connector Refer to Fig 4 4 a b Remove the front pa...

Page 214: ...der not pad itselO of pad ass y lightly and insert pad ass y into the location on pad arm ass y Refer to Fig 4 6 a b Pull down the pad arm ass y and check if the pad is arranged in parallel with the h...

Page 215: ...ive force is not applied to the head arm and then remove the head load ass y Refer to Fig 4 8 a b 4 8 2 Installation and Adjustment a Manually set the machine into the Disk In mode Refer to Fig 4 9 a...

Page 216: ...d ass y Refer to 4 8 h Remove the four screws PSW2 6 x 8 from the bottom of the chassis and then remove the cassette up ass y Refer to Fig 4 9 b aJ Stllllling to Disk In Modll bJ Cassette Up AsS y Rep...

Page 217: ...cover Refer to 4 5 d Manually set the machine into the Disk In mode Refer to Fig 4 9 a IE e Remove the damper Refer to 4 7 _ f Remove the head load ass y Refer to 4 8 g Remove the cassette up ass y Re...

Page 218: ...djustment Refer to 5 4 i Perform the index phase adjustment Refer to 5 6 j Install the m in cover in place Refer to 4 5 k Install the front panel ass y in place Refer to 4 2 35 4 12 SENSOR MOUNTED BOA...

Page 219: ...Compression Spring Rotary Knob I Stt pping Motor Coupling Ass y a 36 Fig 4 13 Stepping Motor SNS 1100A Coupling Ass y and Compression Spring Replacement j Turning the rotary knob remove the lead scre...

Page 220: ...d in factory 4 14 1 Removal a Remove both the FC 9 FCI4 Mounted Board and shield plate Refer to 4 1 b Remove the front panel ass y Refer to 4 2 c Remove the main cover Refer to 4 5 d Manually set the...

Page 221: ...ut lock paint to the screw g Connect the head board to the head harness by four points with a soldering iron Refer to Fig 4 14 c h Connect the head board to the head harness by six points with a solde...

Page 222: ...knob clockwise or counter clockwise by hand Check if the gap measures 50 p m 5 scales on the meter of the lead screw eccentricity inspection tool or less 5 1 3 Adjustment a Attach the rotary knob onto...

Page 223: ...is less than 9 5 g move the position toward B Do not change position C where the string is set Refer to Fig 5 2 c 5 3 HEAD COMPLIANCE Disassemble the following parts and then perform the measurment a...

Page 224: ...kwise until it arrives at the clicking point move the head to TRK 02 and write EXT into the disk Em n Turn the rotary knob clockwise until it arrives at the clicking point move the head back to TRK 03...

Page 225: ...to be set at 50 EX In case a relative humidity of 60 is keyed in 4 The initial value for the sp cified off track is to be set at 26 m EX In case an off track of 30 pm is keyed in insert the alignment...

Page 226: ...ain by adjustment so that the peak values at both edges of the Cat s eye pat tern signal may range from 2 to 4 divisions Refer to Fig 5 4 a NOTE If gain adjustment cannot be done key in Q to execute s...

Page 227: ...at each clicking point until the Cat s eye pattern signal appears Turning the stepping motor with the geared driver within the range that the screw fastening the stepping motor is not dropped from th...

Page 228: ...t lock paint to it NOTE A ratio of 1 1 05 is dermed by identifying the smaller one as unity NOTE Unless the amplitude ratio is utmost 1 1 05 control does not advance the next step 7 Move the TRK 00 se...

Page 229: ...the initial step in the Ad justment mode Thereafter key in ill and th n the same measurement item is executed again NOTE Check for the disk drive in accordance with COrull matlon items to the message...

Page 230: ...ing Equipment a Oscilloscope b MFD Checker II Em c Level Disk OR D46VA Em d Level Disk OR D46WA e Adj rod 5 7 2 Measurement a Connect the disk drive to the MFD Checker II Refer to Fig 2 1 b Connect th...

Page 231: ...stop jittering at the pulse edge as far as possible by adjusting RV103 on the FC 14 Mounted Board with an adj rod tool _ b If the pulses are issued from side 0 or 1 at any interval other than 2 0 0 2...

Page 232: ...le the following parts and then perform the adjustment I Main cover Refer to 4 5 2 Front panel ass y Refer to 4 2 Em 3 Damper Refer to 4 7 Em 4 Head load ass y Refer to 4 8 5 Cassette up ass y Refer t...

Page 233: ...msec R8 150 kn o PULSE INTERVAL 100 0 R8 kn 150 1 5 x PULSEINTERVAL msec 100 R9 On NOTE Figures marked with are for a dlsk motor having the lot number of XXXX2 For detail refer to the circuit diagram...

Page 234: ...more than 2 V mora than 2 V NO FC 9 FC 14 Mounted Board II defective YES Dilk motor i defect Repeat the 6 8 3 Flowchart 5 8 a 51 Troubleshooting Flowchart...

Page 235: ...ng Flowchart FC 9 FC 14 Mounted Board i defective less than 50 mVp p Disk Motor circuit i defective Replace the R9 Refer to 6 8 3 d 1i Repeat the 6 8 3 Flowchart 5 8 b 52 Power off and check the resis...

Page 236: ...is within 0 1 to 0 4 mm Refer to Fig 5 10 b 5 1 3 Adjustment Em a If the clearance is greater than 0 4 mm bend the HL Arm mounting plate down wards Refer to 5 10 a _ b If the clearance is less than 0...

Page 237: ...U IJ l en en r 0 tJ 0 f 5 tJ z en r 0 12 0 I 0 en m Z 0 I 0 Z I J1 J1 I C Z r en en I 5 Q C r w en en en 0 n Q r 11 0 l Q r en en en 0 n Q r 0 l 9PSW2 6X6 I I J1 c I i PSW2 6 x 6 _ _ _...

Page 238: ...de Guide Shaft 20 4 601 008 03 Guide Retainer A 21 4 603 926 00 Guide Retainer C 22 4 601 009 03 WPArm 23 4 601 050 04 Blind Panel 24 4 601 098 00 Ball Bearing No Flange 2S 4 603 916 00 HC Harness Hol...

Page 239: ...MEMO 0 0 0 0 0 _ 58...

Page 240: ..._____ I_ PI un J ger _____ _ _ _ _r 3 I A 8010 032 A I I I I Plungu I FRAME GND I 1 L __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 2 I I r I LED PC BOARD Assy I A 8050 002 B I I C I L __ _ _______________ 1 r I...

Page 241: ...I06 tSY 8107 II BIOS IX CPUEIU _ _ ti TO OIU Sl COtLECTOR B174 J JX 61 Circuit Diagram till RIIS RII4 lSI ISK Circuit Diagram lye lIl I UK till 117 l ZK CNI08 8 1 1 II CNI07 FOI ChecklngJ 11 ANPOUT 4...

Page 242: ...lIO IS1J48H h I Dill IS2J48H 4 SMA 2 rol 1 4 1 Pe rv 1 7 0 P 1 fV 5rfJ i fj Ws Q 1 6 lC 09 1 Z 0 flLf 4 A Q4 1 1 O W J 4 Vss riSV mv L_____J J SMA I IO r Dill ISlJ48H DI07 6 511B I roT o STEPPING Ilr...

Page 243: ...09 IC 106 D en r J 9 ICIOI ICI15 CD ICI02 el21 eln ICI II IC 108 ICI05 ICI12 J L I 1 8 0 Du L I_ _ _ _ _ _ _ _ J 0109 S101 CNloe CNI09 121 I 65 Parts Layout on FC 9 Pattern Side Ie 109 ICIII CI29 IC 1...

Page 244: ...6 Ie 2 J 9 I 1O W 16Y ex 069A IJ RIl 20 L C4 r C7 O OW 0 DOIAd 2SA9j111 1f10 10K RI UK is HOLL SENS A4p ti US IOJ CNZ HI H 4 MOT WCOIl Ifl r v 7S0 _1 6 c Hz Lt h I LOGIC 7 t lro t B J T OIOu 1 z 4 g f...

Page 245: ...by the top of solder ing iron tip and slide the chip part aside when the solder is melted 2 Confum visually with care that there is no pattern peeling damage and or bridge where the part was removed...

Page 246: ...0 ELECT 47 20 16V 0109 8 719 912 25 lS2348HTD ClIO 1 163 03S 0 CERAMIC CHIP 0 047 50V 0110 8 719 912 25 lS2348HTD Clli 1 123 621 41 ELECT 10 20 2SV Dill 8 719 912 25 IS2348HTD C1l2 1 163 038 0 CERAMIC...

Page 247: ...140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R150 R15l R152 R153 R154 R155 R156 R157 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R170 Rl71 Rl72 R173 R174 72 Description 1 216 065 0...

Page 248: ...Y 20 16V 20 16V 20 16V 20 16V 10 16V R4 R4 RS R6 R7 R8 R8 RIO R11 R11 R12 R12 R13 R14 R1S R16 R11 R18 R19 R20 R21 R22 R23 R23 R24 R2S R26 R27 73 Electric Parts List Description DIODES 8 719 815 55 lSl...

Page 249: ...I UI I I Ol I JJ b o o JJ z t en r o n o en Z z 0 c Z r o C w N 5...

Page 250: ...Load Ass y 17 1 454 2B9 21 Plunger Solenoid 18 4 601 017 00 HLArm 19 4 601 060 00 Compression Spring 20 3 659 609 00 Compression Spring 21 4 601 003 00 Slide Guide Shaft 22 4 6 1 00B 03 Guide Retaine...

Page 251: ...MEMO 78...

Page 252: ...3 4 5 I 2 r i 1 HEAD ARM Assy _______ I_ G ND _ _ _ _ __t o I A 8010 028 A I R W S IO rI _ I _ I I R w Fi ni sh r_o X I I I Erase Siorl x a I Erose Finish L _______________________ J CNI08 OJ 2 0 3 3...

Page 253: ...6 CN 08 5V GNIJ 2 GND 3 ZV 4 RZ 46 ICIOS J V IU74 J JK CPU ro JIIZ COi ECTOH 81 Circuit Diagram KIJ4 ZZOWzwJ 0107 lS86Z4 1001 0 1 qrFRA Circuit Diagram CN 06 I ESTT 2 EFIN X Erase HEAD J ND 4 HFIN S...

Page 254: ...NDEX I L U ffi D E f I L___ _ CST IN s r _____ ____ TO_Ii_CIO_ _ j7 t RN __ __ L 13 x o fsr QIIl CNE U WRT PRT 6 B 18Z I t c XJ 4 711 r t I I r llxz i I r 11f 4 1 I Yor t I I I I I I L____ J J J IIJ I...

Page 255: ...7 7 CNIDI I S102 11 RI6S RI23 L 1 TPI04 RI2S i i NO W RI37 In 10 0 C5i in en I CDr z L Rt31 1 11 l iiii 1 J illi i ICIIO J I jP10 1 RI55 rD 8 ICIO o o I _ _ C l 16 CIIS CI14 CIl2 ORI47 1 _ L C 13 0 n...

Page 256: ...parts list Disk Motor Circuit Diagram Ie3 TA 7259p r I I I I FG PRINTeO L 60 PIECES R4 I K RI8 ZX R7 4 7X PH SP 20 20 r I I I I I 1_1 I I I I CJ z I 1 1 ___________ R 5 6 Rlq ZX RIZ 20 RI 750 DJ RD I...

Page 257: ...art by the top of solder ing iron tip and slide the chip part aside when the solder is melted 2 Confirm visually with care that there is no pattern peeling damage and or bridge where the part was remo...

Page 258: ...CERAMIC CHIP 0 047 50Y 0110 8 719 912 25 lS2348HTD C111 1 123 621 41 ELECT 10 20 25Y 0111 8 719 912 25 lS2348HTD C112 1 163 038 00 CERAMIC CHIP 0 1 25Y 0112 8 719 912 25 IS2348HTD C113 1 163 038 00 C...

Page 259: ...40 R141 R142 R143 R144 R145 R146 R147 R148 R149 R1S0 R151 R1S2 R154 R15S R156 R157 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R170 R171 Rl72 R173 R174 R175 R176 92 1 216 065 O METAL C...

Page 260: ...D1 D2 D3 D3 PHI PH2 IC1 IC2 IC3 IC3 Ql Q2 Q3 R1 R2 R2 R3 R3 R4 R4 RS R6 R7 R8 R8 RIO Rll Rll R12 R12 R13 R14 R1S R16 R17 R18 R19 R20 R21 R22 R23 R23 R24 R2S R26 R27 DIODES 8 719 81S SS lSlSSSTP 8 719...

Page 261: ...P VIEW SCALE 4 11 ERAB1 Q04 SN74LS266N Til TTL 2 INPUT EXCLUSIVE NOR GATE WITH OPEN COLLECTOR OUTPUT TOP VJEW SN74LS423N Til TTL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR WITH DIRECT RESET TOP VIEW C UU...

Page 262: ...IER SIDE VIEW AOUT A IN A IN 8 1111 8 IN SOUT CX069 CX069 SONY SIDE VIEW TC TIME CONSTANT I I I I I I I I I IN TIMI TI TIM our Tn GIG CO ST CONSTANT CONSTANT CONSTANT 95 MC3470AP MOTOROLA TOP VIEW NE5...

Page 263: ...y Fe i i I 1 0 0 LOW LEVEL I HIGH LEVEL INPUTS OUTPUTS Ro ABO 0 o x x 0 1 X 0 1 o 0 1 l O t L J O LOW LEVEL 1 JL L J 1 HIGH LEVEL o 1 fL X DONT CARE 96 SN74LS74AN Til TOP VIEW IIPC78L05A NEC INPUTS O...

Page 264: ...TSU FLAT PACKAGE 4 BIT ONE CHIP MICROCOMPUTER TOP VIEW RO R3 RO PORT R4 R7 RI PORT R8 RII R2 PORT R12 RI R3 PORT KO K3 K PORT 00 03 OL PORT 04 07 OH PORT PO P3 P PORT sp p n TIMER COUNTER SC TO SERIAL...

Page 265: ...MEMO o 00 98...

Page 266: ...99...

Page 267: ...Sony Corporation 83K051G 1 975 131 1 1983 100...

Page 268: ...e repared for necessary adjustment and final check 1 A for radial alignment adjustment measurement a SONY BASIC and our new ystem disk OR Dl14VA are required 2 A for final check a CP1M disk a CP1M dis...

Page 269: ...Max 20g d Dislta Level Disk J 604 163 0A 7 732 050 10 m OR D46VA 8 960 009 31 ED OR D46WA 8 960 009 40 Alignment Disk m OR D123VA 8 960 010 26 ED OR D47WA 8 960 009 40 Dynamic Inspection Disk 30 m OR...

Page 270: ...4 divisions and then read amplitude R in Fig 3 1 b Calculate the OFF TRACK value refering to Table 3 1 c and d in accordance with R in Fig 3 1 b Then obtain the humidity compensated OFF TRACK value f...

Page 271: ...28 7 29 1 29 6 30 1 30 5 31 0 31 4 31 8 32 2 32 7 9 33 1 33 5 33 9 34 3 34 7 35 0 35 4 35 8 36 1 36 5 e OA D32V 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 2 26 8 25 1 23 4 21 7 20 1 18 6 17 1 15 6 14 2 1...

Page 272: ...Display Floppy Disk Analysis v3 0 Copyright e 1981 Sep Test condition drive e Minimum track 0 Maximum track 79 Minimum sector 1 Maximum sector 16 Sector size 256 Single or Double side S Read Write re...

Page 273: ...any retry must be conducted when read error or write error occurs EX1 In case it is once Type the number of how many seek retry must be conducted when the errer occurs EX1 In case no retry is desired...

Page 274: ...Total of Read error 0 times during 02560 times read ID DATA ADM missing 0 times ID eRe en or 0 times DATA eRe error 0 times Lost data error 0 times Byte data verify Err 0 times 3 Total of Write error...

Page 275: ...URN byte 10th bytes can be assigned The test ends 3 To display the tes t condition mIRETURNI 1 Teat disk ready yea hit Return Write Teat Start Track End Write Teat End 1 Now You select pattern No 1 I...

Page 276: ...irm the read circuit missing at first check RF output ID data CRC Off track chucking trouble Confirm head compliance Refer to error vrong head compliance 5 3 chucking mechanism or radial alignment an...

Page 277: ...to be set at 50 EX In case a relative humidity of IIRETURNI 60 is keyed in c Eject the CP M Disk and then insert the SONY Disk Basic d Perform keyingl l I I and IRETURN e Eject the SONY Disk Basic an...

Page 278: ...8nt Cc lamInd Function 1 Select the Keasurement command Insert the AligDlllent disk 2 Set the AID cOlIYerter gain by ad jU8tlllent so that the peak values at both edges of the Cat s eye pattern signal...

Page 279: ...stment in accordance with 5 4 5 6 Check if the TRK 00 sensor output is satilfactory When NO GOOD is displayed on the CRT repeat step 5 7 Healure the off track MEASURING 8 Calculate and check the off C...

Page 280: ...as bl 2 nity Hote If adjustment of the stepping motor cannot be conducted by using the geared driver first find the appropriate position in accordance with the follow ing procedure and perform ad jus...

Page 281: ...he cen ter between these broken lines by adjustment and fasten the setscrew with nut lock paint Refer to Fig 5 4 e Hate When NO GOOD is displayed on the CRT repeat step 8 9 Measure the off track 10 Ca...

Page 282: ...one of the following statements is also dis played 15 Statement 1 0 CONTINUE 1 RETRY Statement 2 RETURN FIRST STEP l RETRY Key in IQI when statement ill is displayed and then control advances the step...

Page 283: ...Sony Corporation 84F0510 1 9 975 131 51 1984 16...

Page 284: ......

Page 285: ...fication see note Major category identification see reference Straight sequential number from 0001 to 9999 These two will always be II this identifies the number as ACT Note Finish identification This...

Page 286: ...02911 11003511 11003621 11003752 11003852 11003952 11004052 Fan Earth Cable Cable DC Power DIDisk Signal Cable Chassis Earth SwlFuse Wire Cable Speaker Cable Disk DC Cable PSU AC 8089 MICRO SlDisk Sig...

Page 287: ...r EA2 11006521 Rubber Feet EA2 11006791 Label Ser No Monitor EA 9 11006891 Label Warn Pow Sup EA 9 11006991 Label Earth Pow Sup EA 9 11007021 Screw M4x8 EA 8 11007121 Screw No 10x 6 4 Self Tap EA 8 11...

Page 288: ...CPU 115V Bale Lock Bale Lock Screw Tappex Grooved Pin M3 x 13 Motherboard Fan Stud Sleeve Monitor Box Cardboard System Box Cardboard Monitor End Polyst Keyboard Top Polyst Systems Box Fr Polyst System...

Page 289: ...s Top PI 11443761 Sys Base PI 11443861 Sys Rear Panel PI 11443961 Sys Front Panel PI 11444561 Door PI 11444661 Handle PI 11445621 Keyboard Cable Cover PI 11445761 Expansion Cover PI 11445861 Button Di...

Page 290: ......

Page 291: ...R MIN TYP MAX UNIT NOTES Efficiency 65 At Ullload 115 230 VAC in Operating Temperature 0 50 C Ambient Temp Output Power 50 W Max Continuous Output Ripple 1 1Hz to 10 MHz Line Regulation 0 1 0 2 Load R...

Page 292: ...CIR_C_U_IT_ D_ _GRAM_ _ _ _ _ a ll EI...

Page 293: ......

Page 294: ...NO QTV DE VICe G o 1 4 Llw Q l C t 2 uAI4 b ___ 7 _2 50 N Olb 2 A J I A A 7 6 a4 S Pee R Qul o Io 7 L 2ASN 20 10 T I 6 1 I __ 1 1 Ib r i 70 7 WI J NCQ NST7 4 SN74L557 3N 20 10 II KI _ 7 i _I 4 11 _W...

Page 295: ......

Page 296: ...GI 2 J 2 8 5 Ao A 1 1 2 M12 012 11 _ CQI S _K7 _ _ _40 _ I _A ____ L u ____ 2 __ J7____ ___2 _ M 9g 2 L___ _ ____ 2 e 7 Jb oli 2 11 47 e 1 HI 2 Tp SN 74 L Sl J2 or s a7AL oo2N A A 5 7AL 00N 4 Sf I7 L...

Page 297: ......

Page 298: ...T 10 I oIT II 41cQ4 41 4 41G 4 f Z I 1 l I l 2 J 2 f L z 1 t f I I I 1L j 1L Lj lL 2 I BIT j BIT 2 SIT I 1 41CD4 41 1 14 410 4 Z Z li l j ll 1 l lS l Q 12 2 2 1 1 1 J II I i I BIT 12 BIT I I BIT 14 41...

Page 299: ...22 Z2 I O Rc MWc 21 21 OE 1000c 20 20 AloWc CLK 1 1 lROY 17 I5f i ETr 2 1 N T 3 I Be 14 14 iNr2 15 J3 12 12 0 13 0801 0814 AM A613 Aal A I A 16 Aal HE NMI I MHz Cl O K EXPANSION I NOTE MAXIMUM SIGNAL...

Page 300: ......

Page 301: ...REQUIRED ON FAN STUDS 3 CABLE TIES PIN llCOOOOO 3 OFF ARE REQUIRED KEEP WIRING CLEAR OF FAN BLADES TO SEE POWER SUPPLY DWG FOR MECHANICAL DETAILS pIn 110046 11 SCREW M4x12 IPINIl1007221 f 1 OFF STAR...

Page 302: ......

Page 303: ...5 3K to l c 9 I DATA Pl4 12 _ _9 IP6 rs OUT H 11 8 o I 2 3 4 5 b 7 B A I J R9 1 0 12 13 1 15 1 11 16 19 1 2 3 ta 08o RIO bS 00 60b CO 5 r 2 J9 53 b4 49 78 793948 38 52 1II R j 1 8 _ _ _ 37 P IO II P2...

Page 304: ......

Page 305: ...ARE REQUIRED TO ENSURE GOOD ELECTRICAL CONTACT BETWEEN TOUCHING METAL PARTS 8c CABLES 2 LOCK NUTS PIN 11001621 4 OFF ARE REQUIRED ON FAN STUDS CABLE pIn 110002 41 POWER SUPPLY SEE POWER SUPPLY DWG FOR...

Search results

Summary of Contents for apricot

Reviews:

Related manuals for apricot

Brands by name

Popular brands

ACT apricot, Service Manual

Search results

Summary of Contents for apricot

Reviews:

Related manuals for apricot

Brands by name

Popular brands