[ 53280,0:53281,0:646,(162):"":" USE LYNX TO DISSOLVE THIS FILE":10 2 *LYNX BY CBMCONVERT 2.0* 5 GTLRKSPLY.OM 75 P 172 GTLRKSPLY.OC 32 P 124 GTLRKSPLY.CB 95 P 40 GTLRKSPLY.CH 118 P 141 ECH ONT 34 P 27 DgtlTrkDsply.ComZJPRG formatted GEOS file V1.0|"D"D"D"D|` =j $!$'( 0?Paint Image V1.1geoPaint V2.0 FEE mETRACKER V4.1 (C) 1990 Wesley J. Wiese. Component placement for Digital Track Display. B A`Pai*H@@6:mF$<K9*O,!'  >,0##f4 E}A zz 1@q@ """"?%0"#"l(  (111FB@@(b"""% (hh(((# ? A}zz !11  """" ?@"#0, (((򃁄11DFF(((Bbb""">((hτ((hτ``c"cs{o|fff```)0 y񛁀É`"3~ x0<`yca,a133>`B 39<`;c(/10`FE?00y000Å8``g``>~@"flog""px8AAA@`ap00}H00??ff~>@ UU; "xp`@ 0>33(uD1 }<<~0((((H``0,??aa₞@@@󘀀0`B F 000 C a`ff@C36`< 8C` ` f@63 00> ` pf@ |fff|pFE0( G  `0 Df@lf ))IJD#兝x%p8Xؐ  ``QW b"@33c7  `B p``oBLJyƈ@C`x`B<`FF߄@@ ƈ@??0``̄|f`> ````FFĄ ̈ƈ@0`GBD̄ ̈ƈ@0"pK)( 1ʅ`  ``4```00pÏ ̈ƈ@0000()H 𘙧@@p`` `` 813yy Èƈ@O??B100  `+`` 30@ {;766f M qٍ fff<667BBBBB x>33~ ``300000q>F@񛛙00>333f<{c3666 occc1111 {c3&300cccC   @0  x33>0`~ o`` gc300?Ep(DDv󳙅00>00ff>66cc 111vƅ00ccc B# cccǀ| $Ȅ A >333>@@~ Emn9F ||EC ``|``|x Ɔ`63@ !33?  0p񛛙003cCF B`@88038D$ Q IPP <C `@ $D0`<<~~CBB?BBÂBB~~CC   B`@B36`3Å   C`@ 63 333 χ0`@GBBÄ@@CD`pp 0 ? ?<$$<==%%=E<<$$<<<<0@Ƅ<`0x337;ppp??  𘀀 B00p@ nffoffnvf<0 |3B p x?<B<<< <<<<<<<<333>@1s111|fff|g`aa` F%3?< %3?φ͆`` x Jf~Bx Jf~x Jf~Bx Jf~x Jf~631{@@lfa  G<@`F   $>fff6y}㳙6 l8 x̒!xx<~ff~<?33?@ p&ǃcc00pބ|G@ `H `0  ` @`0 ?pp`@`0??x΅wwww 8??`GXх4x0QЅ|DD@G`  z((<ƌ?c1xA#?QX4HxHHPQDDDGAG@GG@ `2( <<<J }a`H ??01D a}aa}`B 1? 9  ??11100??   000 03(??ǃhhȅxx{xx{xx{#00xx<~ff~< ?33? 3*?33?ǃxh{x<<yy{x<<yy{x<<"yyx<~ff~<?33? 3 B<y=<y=<y=`0  3 #=!=!=0  3 C#00307333  0?D0BB3B ?ssssssppݏܟw ?~www~pp, EEE c1|EEEDDEb"#4# DDD 1cƌ""#l(  zz zz"> >"#4 DDD c1}E @GG@GGEE}">04E0,  ">04DE}@FCH B <<<$$<<<<<$$<<C<<<$$<<<<<$$<<H<<<$$<<<<<$$<< C B<<<<C<< <<<<<< 08<<~~B << <<~~B <<<<~~B <<??800 !#! ``B ?3ƅ>3y <x80 ``0``0`` 011`??80x<~f?38 B ΄$~pp~ppp ~pp~pp~xp88)3??3ǃ`133>63 8``}070xff ~fff~fff~f110"11xxf~<<~f3??3 B3?ǃ`BfR`#fR `11008??x0pf~<3?  BC H<<<<<<<<< J~~<<<0J~~<<< <<<0J~~<<<<<<??00C !#! ``C ݄܄~pp~ۄ܄~pp~x΄܄pF<$$<<<B<$$<<<D<$$<<<<$$<<<8B<$$<<<0 ݏ܅pppÅ߅pp~΅΅݅88J DB 00pD www>p8񻻻󻃃www|DgtlTrkDsply.Doc^PRG formatted GEOS file V1.0|"D"D"D"D|` =j $!$'( 0?Write Image V2.1geoWrite V1.1 K. :-TRACKER V4.1 Copyright (C) 1990 Wesley J. Wiese. Documentation for Digital Track Display. E |`````````N XHTracker V4.1 DTD N ```````@ ```````@ ```````LEGAL NOTICES ```````@ All documents in thisN@ TRACKER V4.1Nseries are Copyright (C) 1989,1990 Wesley J. Wiese, Wes 'n' Les Electronics. All rights reserved. Any and all consequences resulting from the use of these documents is the expressed responsibility of the user.The author will not be held liable and does not imply any warranty or guarantee. The author does certify that all information presented in these documents was correct, to his knowledge, at the time of distribution of these documents. All documents in thisN@ TRACKER V4.1N series are the sole property of the author, who retains all copyrights and patents to the material presented. All documents in this N@TRACKER V4.1N series will not be distributed or reproduced or stored in any retrieval system in whole or part form without the prior permission of the author. `````````NHARDWARE KNOCKS - DIGITAL TRACK DISPLAY N@Copyright (C)April 26,1989 By Wesley J. Wiese All Rights Reserved NHTRACKER V4.1N@ `````````@NThis document appeared first in the Southern Maine Commodore User's Group (N@S.M.C.U.GN.) newsletter, N@C-LINKN, Volume 6, Issue 6, June 1989.N@ NThe Digital Track Display (N@DTDN) is a hardware device utility I developed for the 1541,1541 clone and 1571 disk drives. My need for the N@DTDN came about after many hours of experimenting with state of the art disk backup programs that didn't live up to their claims of being able to archive new software releases. `````````HThe N@DTDN NTrackerN interfaces to the disk drive via a 5 wire ribbon cable. It shows us the current track under the read/write head (including half-tracks) and lets us listen to sync bytes. It consists of 1 pushbutton switch, 3 seven segment LED's, 11 IC's, and various support transistors, capacitors, resistors and a buzzer, all in a 6"x4"x2" externally (or in the case of the 128D ,internally) mounted project box. When loading a program it will show which tracks are being accessed, and listening to the buzzer will warn us if the track is abnormally synced. This is helpful if your archive won't run, to compare the archive to the original. The N@DTDN blanks the current-hungary 7-segment LED's after 20 seconds of drive inactivity to save power comsumption. It draws 123 ma. with LED's off, 190 ma. at rest with LED's on and 250 ma. max. when in full operation. The N@DTDN's primary function is to show us the N@bad Ntracks or where the archive copy locks up. These tracks can have an abnormal number of sync bytes or a non-GCR format or errors in the header or any number of other protection schemes. With the N@DTDN we can compare the archive copy to the original,so as to concentrate on where the protection N@really Nis. Internally, theN@ DTDN is a little too complex to go into in depth here, so here's an overview. - I use the 2 control lines from the 4 phase head stepper motor to trigger monostable multivibrators that enable a binary decoder. At the time of the head step, the phase of the step is decoded and passed to the up or down inputs of the counters, depending on if it was a step up (higher track) or down (lower track). The outputs of the counter are decoded and displayed via 7 segment LED's. Safeguards are built in to protect from illegal N@phase skipsNP Nand decoding of tracks below 1 (also called head banging). The pushbutton is for orientation of theN@ TRACKER Nto the actual drive head position.Before working with any disk,the disk directory should be loaded and the button pushed to syncronize the N@TRACKERN to track 18. Some of the parts listed here are available from Radio Shack, but most are not. I use Jameco Electronics (1-415-592-8097), Active Electronics (1-800-228-4836 or 1-800-228-4834), Digikey Electronics (1-800-344-4539) and Mouser Electronics (1-800-346-6873). Call these merchants for latest prices/catalogs. Total project parts cost is about $35.00. Professional project cases are available from the aforementioned vendors as are kits to make your own PC boards. Prices for cases vary from $3.00 to $30.00, depending on your taste and/or budget. A friend of mine even built a hardwood walnut case for it. `````````H N `````````NHPARTS LISTN@ NRadio Shack part #'s given when applicableN@ `@`````` Semiconductors Resistors and Capacitors `(x`````` NIC1,IC2 ,IC5-74LS123 R1,R2,R4,R5,R6,R10-10K@ (RS# IC3-74LS138 271-1335) IC4-74LS08 R3-200K@ IC6-74LS00 R7-100K@ (RS#271-1347) IC7,IC8-74LS192 R8-1K@ (RS#271-1321) IC9,IC10-74LS47 R9-22K@ (RS#271-1339) IC11-7425 R11 thru R30-330@ (RS# Q1,Q2-2N2222 NPN Transistors(RS#276-2009) 271-1315) LED1, LED2, LED3-MAN6760 Common Anode C1,C2,C4,C5,C6-100pf (RS# N@OtherN 272-123) SW1-N.O. Momentary Pushbutton(RS#275-1571) C3-220uf 16v (RS#272-956) BZ1-Buzzer(RS#273-065A) C7-10uf 16v 3 feet of 5 conductor ribbon cable C8-.1uf 50v (RS#272-1069) `(`````` IC sockets if wanted/needed p0 NHConnection Guide to Disk Drives N1541,1541II and CloneN@ XP 12'' Board 9''Board 7''Board 1541-II Excelerator+ H@SYNCS NPin 17 IC-UCD4 Pin 17 IC-UC2 Pin 17 IC-UC3 Pin 17 IC-U8 Pin 17 IC-U9N@ +5 Volts NPin 14 IC-UC1 Pin 14 IC-UA1 Pin 14 IC-UA1 Pin 14 IC-U1 Pin 14 IC-U12N@ Ground NPin 7 IC-UC1 Pin 7 IC-UA1 Pin 7 IC-UA1 Pin 7 IC-U1 Pin 7 IC-U12N@ STEP 0 NPin 10 IC-UCD4 Pin 10 IC-UC2 Pin 10 IC-UC3 Pin 10 IC-U8 Pin 10 IC-U9 N@ STEP 1 NPin 11 IC-UCD4 Pin 11 IC-UC2 Pin 11 IC-UC3 Pin 11 IC-U8 Pin 11 IC-U9 `P0```NBlue Chip 1541N ````````N@SYNCS NPin 17 of the 6522 that is between the 6502 and the other 6522N@ `0```+5 Volts NPin 14 of 74LS10 to the left of the 6522'sN@ Ground NPin 7 of 74LS10 to the left of the 6522'sN@ STEP 0 NPin 10 of the 6522 that is between the 6502 and the other 6522N@ STEP 1 NPin 11 of the 6522 that is between the 6502 and the other 6522N@ N `P0```N1571 and 128D 1571 ``````` N@1571 128D 1571N ```````N@SYNCS NPin 17 IC-U4 Pin 17 IC-U104N@ +5 Volts NPin 14 IC-U17 Pin 14 IC-U113N@ Ground NPin 7 IC-U17 Pin 7 IC-U113N@ STEP 0 NPin 10 IC-U4 Pin 10 IC-U104N@ STEP 1 NPin 11 IC-U4 Pin 11 IC-U104N DATE TIME N@TRACKER V4.1 (C) 1989,1990 Wesley J. 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