Paia CS-87 Assembly And Using Manual Download | Manualshive

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Summary of Contents for CS-87

Page 1: ...CS 87 T M CASSETTE INTERFACE ASSEMBLY AND USING MANUAL 1977 PAIA Electronics Jnc 1020 W Wilshire Blvd Oklahoma City OK 73116...

Page 2: ...209 LED 27K resistor red violet orange 3 3K resistor orange orange red 12 inch length of 4 conductor ribbon cable lK resistor brown black red lOK resistor brown black orange lOOK resistor brown black...

Page 3: ...d R49 R50 2 parts lOK brown black orange R5i 1000 ohms brown black red R52 27K recl violet orange Jnstall the single ceramic disk or in some kits mylar capacitor c10 0 1 mfd There are two 2N5139 trans...

Page 4: ...IC 18 16 pin socket at IC 20 8 pin socket at J9 lnstall the 2 IC 1s in their sockets WARNING CMOS PARTS Leave these parts in their conductive foam carrier until ready to install do not wear synthetic...

Page 5: ...PORT AND HEAT SINK IS ESSENTIAL Do not attempt the following assembly steps without this ALSO proper preparation of both wires and header will simplify assembly Pre tin the header pins before solderin...

Page 6: ...Locate the two miniature phone plugs supplied unscrew the cover from one and slip the cover over the end of the pair of wires coming from header pins 3 and 4 the threaded end of the cover should be t...

Page 7: ...digital programs A problem known to magnetic tape media as dropout can scrub your programs Dropout causes the signal on tape to fade away for very brief periods of time and is caused by fluctuations i...

Page 8: ...2 The ending address of the block of data that is to be saved or loaded 4 hexadecimal digits two bytes 3 A file ideut ier number 2 hex digits one byte 4 A one byte 2 hex digits indicator for either a...

Page 9: ...ge slightly as data begins to flow out and the displays should begin counting showing the low byte of the address of the data currently being transferred lt will only take a second or two for the prog...

Page 10: ...tb e dump with a contin uous strin g of keyboard entries indicating beginning address ending address ID number and LOAD DUMP switch The first 8 entries begin ning and ending address B87 AZ D E D AZll...

Page 11: ...r properly You may try varying the volume control setting of the recorder and trying again NOTE when POT SHOT announces an error it is in most cases not necessary to enter all of the addresses identif...

Page 12: ...sum error 5 If you have a file on tape of which the end address is not lmown it can be determined with the following method 01 Load the file as normal but with an end address of FFFF 02 Hit RESET whe...

Page 13: ...0 TAPE Recorder will remain activated until next keyboard entry ZERO PAGE LOCATIONS PIEBUG BUFFER FO DUMP LOAD MAN SWITCH tested for zero bit 7 Fl IDENTIFIER F2 LSB END ADDR F3 MSB END ADDR F4 LSB BEG...

Page 14: ...SYSTFM J WRITTEN BY ROGER WALTON J COPYRIGHT 1977 BY PAIA J ELECTRONICS INC J VERSION leO J J J PORT OISPLY PIEBUG BE EP J STATUS CHKSUM PNTER COMAND IDENT ENDADR BEGADR J J 0900 0820 0F 52 SOF 22 EF...

Page 15: ...IT TO r r TAP J A 1 BIT CONSISTS OF 16 CYCL S OF oon M7 J AND A O BIT CONSISTS OF g THIC 118 J TURNS RELAY 1 ON ANO RF LAY 2 OFF Y IS J CLEAREO X A ANO CARRY ARF PRFSFRVF J SNDBIT PHA TXA PHA LDX 116...

Page 16: ...6F J 1410 OE6F 18 SNDSYT ClC 1420 OE70 20 25 OE JSR SNDBIT JSENO START BIT 1430 OE73 A2 09 l DX 119 JSE T BIT COUNTER TO 9 1440 OE75 38 se c JSET STOP BIT 1450 OE76 2A NEXT1 ROL A JMOVE BIT TO CARRY 1...

Page 17: ...ADDS THF J CONTENTS OF THE ACC TO TH i CHF CKSUM J AND DISPLAYS THE LOW BYTE OF POINT R J A IS MUTILATEO X AND Y ARE PR SF RVF O J RELAYS ARE NOT AFF F CTED J CHKADD CLD CLC JUPDATE CHF CKSUM JSAVE I...

Page 18: ...YT TXA RTS JSEND IT J GET BYTE JSEND IT JLAST BYTF JBRANCH IF NOT J GET CHECKSUM JSEND IT JCLEAR ACC JRETURN LOAD BLOCK SUBROUTINE THIS SUB WILL SEARCH FOR A BLOCK ON TAPE WITH AN IDENTIFIER THAT MATC...

Page 19: ...E25 PORT 0900 DISPLY 0820 PIEBUG OF52 BEEP OF22 STATUS OOF F CHKSUM OOEE PNTER OOF6 COMAND OOF O IDF NT OOF t ENDADR OOF2 BEGADR OOF 4 START OEOO DELAY OF t C DL f OE2l GAP OE3F DETBIT OE49 TONE OF 4C...

Page 20: ...y J1 3 o1 o L J Relays with 12 volt coils are con RE aJRJ ER r Z V6ULTJL J 8RI nected between the appropriate relay control pin of the cassette connector header and its 9 volt supply point pin 2 NOTE...

Page 21: ...hnique and format to be the most tolerant of speed variations and distortion produced by the cassette recorder The format of a file on tape is as follows First there is a 3 second leader tone that con...

Page 22: ...SETTE INPUT PORT ADDRESS F900 D z Do DATA IN 1 NOT USED CASSETTE OUTPUT PORT ADDRESS F900 RELAY 1 RELAY 2 BEEPER DATA OUT NOT USED CASSETTE CONNECTOR J9 s 0 1 9 0 EAR 0 EAR 0 0 RELAY2 0 RELAY 1 0 MIC...

Page 23: ...1natics rn 2 f 12 R W lL 11 CASSETTE INPUT PORT 500 lK R51 D2 CASSETTE OUTPUT PORT R4 s CASSETTE Jl 3 3K s 4042 lOK R50 f 12 R w DB7 14 Q 1 R49 DB6 7 20 10 DBS 4 2 R46 DB4 13 11 100 R47 lK R48 TO J9 M...

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