Related Manuals for SWTPC DMF2
Summary of Contents for SWTPC DMF2
- Page 1 IMPORTANT NOTE Although effort been made every Southwest possible, Techni tion right reserves rev’...
- Page 2 SWTPC MODIFICATION APPLICATION NOTICE #120 Product: DMAF2 DT-8 Disk Drives QUME Date: July 1980 G.K. Unpacking Packing Qume Disk Drives DT-8 When unpacking Qume DT-8 disk drives, important your very that disk drive save materials. These packing materials include cardboard...
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Page 3: Installation
Technical Products Corporation DMAF2 is dual drive, ___, Single double density, double sided eight-inch disk unit. DMAF2 designed with operate SWTPC SS-50 computer systems. Although DMAF2 designed with operate drives, four drives used with special daisy chained interconnection cable. Although... - Page 4 This connector indexed only installed way. drive socket DC cable Connect remaining socket Connect motor control cable respective that installed connector board. control motor sure female mates with clipped portion indexing board. removed connector drive shown Install ribbon cable connector 50-pin that also...
- Page 5 DMAF2 Disk Unit Jumper Requirements following tables show jumper used with settings DMAF2 double density disk controller various system configurations. addition DMAF2 jumpers, changes some required MP-09 board processor jumpers. Table DMAF2 Jumpers DMAF Jumper "S$" Systems "S" Systems (69A, 69K) Halt/Bus Upper/Lower...
- Page 6 Before installation controller. before installing computer checked that suggested system proper memory modifications, special require SWTPC systems operation. computer DMAF2 should installed computer. least 20K of memory card positions un-used 50-pin installed board should from cable...
- Page 7 This switch power located chassis rear easily accessible when used ‘in user table configurations. When installed SWTPC desk, should be left the ON position. Power then controlled switch installed desk. Loading Disks Flexible depress load flexible disk,...
- Page 8 LED's drives drive load select/head lights activated when head drive loaded only particular diskette. indicators. They power disk controller been load head turn designed drive motors only when When data computer requests necessary. from disk, both motors will activate correct head will load.
- Page 9 Booting Disk Unit After disk unit connecting attempt computer made boot system. Before sure booting system that disk computer both powered Next insert diskette disk containing operating into system drive 0 and close door. then executed boot load DISKBUG® operating system.
- Page 11 REGTEST that various verify used REGTEST diagnostic accessed properly. controller board DMAF2 disk being registers controller connected disk drives REGTEST that assumes instructions. checkout described applied power into entered REGTEST code must diagnostic, examine change instruction instruction using computer memory execution should then...
- Page 12 STEPTEST 6809 Version HEAD STEPPING PROGRAM F020 COMREG $F020 1791 COMMAND REGISTER 0100 $0100 0100 FO 20 START #COMREG LOAD THE COMMAND ADDRESS 0103 C6 FE #$FE SELECT DRIVE 0105 £7 04 STORE DRVREG 0107 £6 MOTORS WAIT UNTIL READY 0109 C5 80 BITB...
- Page 13 Version 6809 REGTEST PROGRAM DMAF2 REGISTER TESTING START OF DMAC REGISTERS F000 ADDREG CHARACTER OUTPUT ROUTINE F80A $F80A OUTCH DRIVE SELECT LATCH $F024 F024 DRVREG 0100 $0100 LOAD ADDRESS OF REGISTERS 0100 START #ADDREG BYTE 0103 REGISTERS STORE 0106 0108 010A 010C O10E...
- Page 14 Technical Information following sections contain limited amount technical information DMAF2. This information supplied serve repair manual. Service should only performed qualified personnel. Some information useful configuring DMAF2 particular your system. How it Works DMAF2 disk unit broken down into four disk major parts:...
- Page 15 DMAF2 Controller Board Jumpers options number programmable DMAF2 contains jumper ~The described below. HALT/BUS REQ will take halting HALT transfers place When mode, will transfers BUS. position, When processor. 6809. This made feature by utilizing request HALT should position. jumper normally COMP/NORM.
- Page 16 This jumpers used DMAF2's change addressing should left byte jumper normally segments. position. IRQ/NORM When NORM position interrupts DMAF2 generated will passed This computer system. when jumper IRQ position will enable interrupts. jumper should normally NORM position. 32K/56K UPPER/LOWER PHYSICAL DMAF2 ——...
- Page 17 Board Control FD-M Motor WHITE TO +S DRIVE MOTOR f° VWA——4 Walt Receptacle mend N.C. Fawr ap~ &1 N.C.O— MOTOR CONTROL DRIVER BLACK CONTROLLER BOARD Parts List FD-M Motor Control Board Resistors watt resistor — " 2200hm "” ——~ 4.7 K resistor —- watt...
- Page 19 P-30 DF Power Supply sboll “ Peis « Parts P-30 DF Power List Supply Diodes Resistors — diode 1N5402 current high 243 ohm 1% resistor " " " a” 4320 1% resistor " " ” " used " " used notused TARE 1N4003...
- Page 20 Ajddng £0 ---, ’ vwemog » =< ¢9 }—@- a-ia zert goal SH3EWNN YOLOJNNOO € HOLIMS i\> 7” U3MOd "...
- Page 21 Disk Drives Drive Remex Programming first drives must disk they order supplied functions system. enable required programmed DRIVE with used conjunction should following description disk drives. Remex PROGRAMMING PICTORIAL program toward Turn. that door drive upside down circuit board. side that component looking...
- Page 22 install tike jumper this for drive ®@ +[s9] INDEX Connector Motor 3wee Control board e@ @ (Drive only) install here jumper drive eles] [es] [ee] @-5V ® Pull-up resistor biock change these shunts Remex Drive Programming Pictorial 19-B...
- Page 23 Disk Drives Drive Programming--Qume first must they disk drives order supplied functions required system. enable programmed with conjunction used should following description drives. disk Qume PROGRAMMING PICTORIAL program DRIVE toward door drive down that Turn upside circuit board. side component that looking small...
- Page 24 Data Disk Separator Adjustment Procedure--DMAF2 Controller Adjustment data DMAF2 disk controller separator board requires special equipment some including dual channel good oscilloscope disk formatted with "1's". This adjustment requires technical ability should done only qualified personnel. Connect channel A of oscilloscope test point...
- Page 25 VOLTAGE ° ° REGULATOR ° MOTOR CONTROL CABLE TRANSFORMER POWER nnnnnn-f --------- Moror ° ° CONTROL BOARD POWER CABLES SUPPLY ° «4+ CABLES Colored Band DRIVE DRIVE LAYOUT PICTORIAL DMAF2 CHASSIS...
- Page 27 Parts List DMF2A Disk Controller Resistors watt resistor watt resistor 1K" " " " " potentiometer " " " “ R32 10K " " " " resistor R33 470 ohm 1% resistor " " " " " " " 2.2K watt resistor "...
- Page 28 1016 74LS00 NAND quad 1033 74125 tri-state gate quad IC17 74LS74 dual buffer flip flop 1C18 9602 dual one-shot 1034 74LS32 quad gate 74LS138 IC19 74LS08 1035 decoder quad gate 1791 disk controller 1036 74LS132 quad _NAND g ate octal 1¢37 74LS245 —...
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- Page 32 > TOIC20 ¢ DoEN PRE-COMP 1C20 TG43 =— NORM Ic19 Ic19 Lsos Lsos cLoKk OCLK Q118 Lsi166 SER. INHIBIT mene -_SHIFT/LOAD ——— “RSA RESET 4.7K °° DMF2A DOUBLE DENSITY WRITE PRE-COMPENSATION IMPORTANT NOTE eongaa Although every sffort has been made tomake the s upplied documentation as sccurate and f urre-...
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