Ohio Scientific Superboard II Assembly Instructions Manual Download Page 71

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Summary of Contents for Superboard II

Page 1: ...SUPERBOARDrr KIT ASSEMBLY MANUAL MIA COM OSI April 1982 ...

Page 2: ...ectonic hardware Assembly of this kit should only be attempted by individuals experienced with electronic assembly and test techniques Ohi 0 Sci entifi c 1333 S Chillicothe Rd Aurora Ohio 44202 Printed in the United States of America Copyright 1982 Ohio Scientific All Rights Reserved ...

Page 3: ... 36 45 46 55 56 65 Part 1 Steps 37 41 66 78 Stage IV Final Assembly and Test Part 1 Steps 42 44 79 84 Part 2 Step 45 Step 46 Part 3 Appendices 1 2 3 4 5 6 7 8 9 10 II 12 Superboard II and C1P Documentation Parts Bags Cross Reference Trouble Shooting Chart External Storage of Programs Vi deo Memory Maps Character Graphics BASIC n ROM Error Codes Memory Map Pi nouts Legend Superboard II Schematic Su...

Page 4: ...V set by way of an RF modulator and to a cassette player With a substitution of connections at the rear edge Molex socket the Superboard can be used with a serial printer or a modem as well as with the cassette player The addition of a 610 I O board will give you memory expansion capabiiity up to 32K arid the possibility of adding one or two minifloppy disk drives Before beginning the assembly you...

Page 5: ... or solder braid Csotch tape AC DC VOM multimeter Logic probe useful for testing but not required 5 Volt DC 3 Amp power supply regulation better than 4 ripple less than 4 The addition of a 610 will require an additional power supply total 6 amps Video monitor or B W TV with RF modulator Portable cassette recorder used on AC Small speaker useful with DAC but not required ATV Research Microverter re...

Page 6: ...parts modifi cations or corrosive solder voids this warranty completely Warranty does not cover inconven iences loss of use assembly or set up time unauthorized service NOTE OSI cannot accept collect calls Customer Information OSI will not service kits which have not been completed Malfunctions involving non OSI peripherals monitors tape recorders etc are the customer s responsibility Returns Repa...

Page 7: ...re the ROM chips which cantain the pragrams necessary far yaur camputer to functian as it daes Abave the ROM chips is the circuitry far selecting ROM addresses Finally the heart and saul af yaur Superbaard the 6502 micrapracessar is lacated in the center abave the keyboard Figure 1 2 is a detailed diagram af the superbaard campanent layout The rectangles in the tap twa thirds af the diagram are th...

Page 8: ...s Bag C Resistors and Pots Bag D Misc Hardware Sockets and Solder Bag E Keyboard Parts Bag F Chips Bag G Miscellaneous Bag H Chips Superboard II Bare circuit board Superboard II Kit Assembly Manual Cassette tapes two one test and one blank 5 56 Pieces 31 58 108 110 27 3 37 430 Total ...

Page 9: ...I O Section ROM Select ROM N o LO 0 Keyboard Area Figure I I 6 RAM RAM Select Keyboard Decoding ...

Page 10: ...SUPERBOARD KIT BOARD LAYOUT DIAGRAM Figure 1 2 7 ...

Page 11: ... board Most of the soldering involved in the project will be done during this stage You will also do some preliminary testing There are many diagrams to assist you in properly locating components on the board However be sure to double check the position and orientation of each part before soldering Stage I assembly is divided into five parts as described on the fol lowing pages 8 ...

Page 12: ...16FI 25 16 pin IC socket SC lSFI IS IS pin IC socket SC 24FI 7 24 pin IC socket SC 40FI 2 40 pin IC socket Note It is a good idea to find and check each part on the list at this time This will save time and help to avoid mistakes when the various parts are called for in the assembly steps 9 16 pin IC socket the 24 pin and 40 pin sockets have rectangular openings be ween the rows of pins ...

Page 13: ...ed and soldered first These should be followed by the next largest size and so on until all the indicated sockets have been installed The installation of a socket requires three steps 1 put the socket in the board checking the orientation of the cutout or notch indicating pin one 2 turn the board over and bend two of the pins on opposite corners to temporarily secure the socket 3 verify that the s...

Page 14: ...te For best results use the solder included with your kit Note Check the appropriate box in the columns to the left as you complete each step to keep track of your A progress A curOUT FACES A 1 t A TO THE RIGHT SOUTH A A A 11 N il I I detail location A A A A detail ...

Page 15: ... I B Install and solder 18 pin IC sockets SC 18FI count 2 C Install and solder 16 pin IC sockets SC 16FI count D Install and solder 14 pin IC sockets SC 14FI count 3 J1t OUT FACES C UP EAST ON A CUTOUT FACES l 4 rf TO THE RIGHT SOUTH ON B C O I N 1II1111111i 12 ...

Page 16: ...EP 3 A B Install and solder 16_pin IC sockets SC 16FI count 6 Install and solder 14 pin IC so kets SC 14FI count 3 CUTOUT FACES TO l THE RIGHT KEEP YOUR SOLDERING IRON TIP CLEANt 4 tC SOUTH J N II A 8 13 ...

Page 17: ... combinations Pin 1 to Pins 2 3 4 thru Pin 18 Pin 2 to Pins 3 4 thru Pin 18 Pin 3 to Pins 4 thru Pin 18 continue Pin 17 to Pin 18 All of these combinations should indicate an open circuit Remedy If any combination indicates a completed circuit inspect the reverse side of the printed c i rcuit board for solder bridges and remove excess solder either with a solder sucker or desoldering braid NOTE Al...

Page 18: ... STEP 4 A Install and solder B 16 p in IC s SC 16FI socket count 6 Install and solder IC socket 14 pin 7 s SC 14FI count CUTOUT FACES TO THE RIG HT SOUTH I I I N I11111111111111 15 ...

Page 19: ...P 5 A Install and solder 40 pin IC socket SC 40FI count I B Install and solder 24 pin IC sockets SC 24FI count 6 A B B CUTOUT FACES i 4 8 TO THE RIGHT SOUTH B B B J N I M l t t 1 1 1 ii lf iI f J __ f 1 6 ...

Page 20: ... and solder 16 pin IC sockets SC 16FI count 4 C Install and solder 14 pin IC sockets SC 14FI count 2 Note These sockets are only pop ulated when a 610 I O Expander A Board is attached to the Superboard CUTOUT FACES g 8 i 4 TO THE RIGHT SOUTH C 8 17 N I 111 1 llllllll 8 C ...

Page 21: ... 7 A Install and solder KEEP YOUR SOLDERING IRON TIP CLEAN 16 pin IC sockets SC 1 FI count 3 B Install and solder 14 pin IC socket SC 14FI count A CUTOUT FACES I i 4 B TO THE RIGHT SOUTH 18 N I i i i i iiii ...

Page 22: ...to Pins 4 5 24 continue Pin 23 to Pin 24 All of these combinations except Pin 18 to Pin 21 Pin 18 to Pin 24 and Pin 21 to Pin 24 should indicate an open circuit The connectionsamong Pins 18 21 and 24 should all indicate completed circuits these are all connected to 5V Remedy If any combination other than those among Pins 18 21 and 24 indicates a completed circuit inspect the reverse side of the pr...

Page 23: ...uts I At 110 II 0 II All 01 II I 3 I01Io II I 011 II 00 Ot II indicated GIl i OIl ou 10 01 01 II AU 0 It II aD II II 01 U31 II 1ft I 1 GIIO 01 II I Oil II 11 All I I U13 II It II II I It 11 U8 2 Check address lines Use the ohmmeter to check the following pin combinations for circuits G o C It Socket U31 Socket U8 comp1eted PINOUT U31 Pin 5 and U8 Pin 9 AO U31 Pin 6 and U8 Pin 10 AI U31 Pin 7 and U...

Page 24: ... t V t PINOUT PINOUT U8 Pin 33 DBO to U13 Pin 9 DO U8 Pin 32 DB1 to U13 Pin 10 D1 U8 Pin 31 DB2 to U13 Pin 11 D2 U8 Pin 30 DB3 to U13 Pin 13 D3 U8 Pin 29 DB4 to U13 Pin 14 D4 U8 Pin 28 OBS to U13 Pin 15 05 U8 Pin 27 DB6 to U13 Pin 16 D6 U8 Pin 26 DB7 to U13 Pin 17 D7 PINOUT refers to notation on schematics and PINOUT charts at end of manual 21 ...

Page 25: ...dle and a black stripe at one end The black stripe enables the builder to orient the diode properly The leads on all the diodes except one should be bent to a 90 angle so that the center section is 3 8 wide The last diode is installed in a Standup or vertical position The procedure for installing one diode is 1 Bend the leads to the correct length 2 Insert the diode into the board checking for the...

Page 26: ...STEP 8 A Install and solder diodes Q 1N914 count 8 The leads on the diodes should be bent to 3 8 KEEP YOUR SOLDERING IRON TIP CLEAN DIODE r 3 1 BLACK TI P MUST FACE AS SHOWN IN DIAGRAM N il I I I 23 ...

Page 27: ...STEP 9 A Install and solder diodes Q IN914 All leads should be bent to 3 8 count 7 BLACK TIP MUST FACE AS SHOWN IN DIAGRAM 24 A A N ...

Page 28: ...STEP 10 A Install a nd solder diodes Q IN914 count 8 Bend the leads on the diodes to 3 8 BLACK TIP MUST FACE AS SHOWN IN DIAGRAM I N 25 ...

Page 29: ...in a U shape and the other lead left unbent This diode must be installed n a stand up position because the holes are too close to gether for the diode to lie down on the board count 1 C Install and solder diode rectifier Q IN4001 The diode must be installed so that the gray banded end points to the south end of the board count 1 BLACK TIP MUST FACE AS SHOWN IN DIAGRAM J N C 26 ...

Page 30: ... red red brown gold Rl 333 1 33K Ohm orange orange orange gold Rl 391 1 390 Ohm orange white brown gold Rl 392 1 3 9K Ohm orange white red gold Rl 471 4 470 Ohm yellow violet brown gold Rl 472 12 4 7K Ohm yellow violet red gold Rl 511 2 510 Ohm green brown brown gold Rl 683 1 68K Ohm blue gray orange gold I Rl 822 1 8 2K Ohm gray red red gold R2 102 2 lK Ohm brown black red silver typical resi sto...

Page 31: ...unted into holes that are 1 8 apart and so must be mounted standing up One lead is left unbent and the other is bent into a U shape The procedure for installing a resistor is the same as for installing a diode except that the orientation of a resistor is unimportant OR Jt N R S T T I A C L A L L L y Note As a convention it is a good idea to insert all resistors the same way for instance insert all...

Page 32: ... violet red gold Rl 472 count 10 B 220 Ohm resistor red red brown gold Rl 221 count C 390 Ohm resistor orange white brown gold Rl 391 count D 8 2K Ohm resistor gray red red gold Rl 822 count E 3 9K Ohm resistor orange white red gold Rl 392 count F 2K Ohm resistor red black red gold Rl 202 count V AE N R S T T I A C L A L L L y 29 N I 1IIIIIIIIi D I E F ...

Page 33: ...tor yellow violet red gold RI 472 B count 1M Ohm resistor brown black green gold Rl IOS count t e lOOK Ohm resistor brown black yellow gold Rl I04 count 3 D 510 Ohm resistor green brown brown gold Rl SIl E F count 10K Ohm resistor brown black orange gold Rl I03 count 10 Meg Ohm resistor brown black blue gold Rl I06 count KEEP YOUR SOLDERING IRON TIP CLEAN 30 N ...

Page 34: ...ng resistors Each is mounted vertically All the resistors in this group are small A 10K Ohm resistor brown black orange gold RI 103 count 2 B 470 Ohm resitor yellow violet brown gold Rl 471 count 3 V I A N s T A 1 A I I L Y B I N 11111111 B ...

Page 35: ...mall A IK Ohm resistor brown black red gold RI I02 count B 510 Ohm resistor green brown brown gold Rl 511 count C 68K Ohm resistor blue gray orange gold Rl 683 count D 33K Ohm resistor orange orange orange gold Rl 333 E count 16K Ohm resistor brown blue orange gold Rl 163 count V AE N R S T T I A C L A L L L y 32 N ...

Page 36: ...esistors brown black orange gold Rl 103 count 5 lOOK Ohm resistor brown black yeliow gold Rl 104 count 1 220 Ohm resistors red red brown gold Rl 22l count 2 A 15 K Ohm re sistor brown green orange gold Rl 153 count 1 100 Ohm resistor brown black brown gold Rl 10l count 1 lK Ohm 1 2 watt resistors brown black red gold R2 l02 0 l count 2 4 7KOhm resistor yellow violet red gold Rl 472 count 1 470 Ohm...

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Page 38: ...35 ...

Page 39: ...ectrolytic capacitor may be 47 f C 680 1 68 pf capacitor CB l04l0 39 1 f bypass capacitor Note As you locate each part check the appropriate box typical ceramic capacitors Note see next page for help with identification electrolytic capacitor polarity is indicated usually with n n signs at one end or with arrows pointing to then n end this may have the appearance of either a ceramic or an electrol...

Page 40: ...nd must be installed with the orienta tion indicated in the diagrams Labelling of capacitors can be confusing to the inexperienced Frequently the units microfarads etc are not indicated on ceramic capacitors As a general rule if the number is less than one then the units are microfarads F if the number is greater than 10 the units are picofarads PF Also the numerical value may be preceded or follo...

Page 41: ...nd solder the following ceramic capacitors A 1 f 10 volt bypass capacitor CB I0410 count 8 CAPACITOR REMOVE INSULATION so that it does not A A extend down into the insertion hole KEEP YOUR SOLDERING IRON TIP CLEAN N 38 ...

Page 42: ...P 18 Install and solder the following ceram c capacitors A I f 10 volt bypass capacitors CB I0410 count 6 B 27 pf capacitor C 270 count C ISO pf capacitor C 151 count I D 1 f capacitor C 104 count 1 I N 39 ...

Page 43: ...capacitor C 680 This capacitor may have a disk or tubular shape If it is tubular it should be oriented so that the end with the black ring is east count 1 F 1 l If capacitor C 104 count 1 G 47 II f electrolytic capacitor In some kits this is a 50 II f electrolytic capacitor C 506 count 1 WARNING Electrolytic capacitors must be installed w the proper orientation in this case the plus is south F I N...

Page 44: ...STEP 20 Install and solder the following ceram c capacitors A 1 f 10 volt bypass capacitors CB I0410 count 7 KEEP YOUR SOLDERING IRON TIP CLEAN I N 11111111111111 A A ...

Page 45: ...STEP 21 Install and solder the following ceram c capacitors A 1 If 10 volt bypass capacitors CB I0410 count 4 I Ili 1 N 1 ...

Page 46: ...STEP 22 Install and solder the following ceramic capacitors A 1 J lf 10 volt bypass capacitors CB I0410 count 2 N A 43 ...

Page 47: ...STEP 23 Install and solder the following ceramic capacitors A 1 llf 10 volt bypass capacitors CB I0410 count 6 I N II 44 ...

Page 48: ...r CB 10410 count 1 OOlu f capacitor C 102 count 1 C lSO pf capacitor C 1Sl D count 1 1 u f capacitor C 104 count 1 E 47 u f electro lytic capacitors May be a SO 11 f electrolytic C S06 count 2 0lI0 WARNING TheseAcapacitors must be installed with the proper orientation N I l B c 45 E E ...

Page 49: ... 2N5225 1 Transistor Q 2N5226 IC 3l30 IC 393 RP 103 RP 502 HW FH2 HW N632 HW RBI HW S632 50 HW WM6 HW WMI6 L LEDI SC 12FM SC 2FM 1 S CF Y WA SBCM 1 1 1 1 1 2 6 6 6 6 6 1 2 1 1 1 1 Transistor 8 pin chip TTL 8 pin chip TTL 10K trimmer potentiometer SK trimmer potentiometer Fuse holder clips Nuts 6 32 Rubber feet Screws 1 2 X 6 32 Flat washers 6 Lock washers 6 Light emitting diode l2 pin female Molex...

Page 50: ...TRANSISTORS MOLEX fewo e POTENTIOMETER fO C3jlP POWER CABLE ASSEMBLY fDWf nCoF f w 8 t O C Stage I part five Parts Identification 47 ...

Page 51: ... installed with pin 3 towards the west side of the board count 1 C 5 K potentiometer Rf 5 O 2 This unit should be 2 installed with 3 to wards the north side count 1 D transistor NPN Q 2N5225 Note the pin orienta tion This transistor is installed with the flat side towards the east Transistors are heat sensitive Use care count 1 E transistor PNP Q 2N5226 This transistor is also installed with the f...

Page 52: ...omponent already in stalled If not proceed as indicated below This component is fragile After the leads are inserted the crystal should be pushed over so that it lays on the cross hatched area If the lettering is on the side of the crystal it should be visible after the crystal is laid over If the crystal has lettering on its top the lettering should appear right side up after the crystal is laid ...

Page 53: ...he 12 holes in the board for the molex with tape Then position the molex in the holes so that the molex sockets are up and the four plastic clips point toward the center of the I 111 1 board south Solder in place Insert shorting plug assembly into molex Plug mu t point up so that jumper wires are visible on top How ever if you have in stalled the molex in the alternate manner described in the note...

Page 54: ... J H 0 d 4 d l 3 Ho C Pl wt Ito iJ cJ s s 2 rJ c tl 1 it I e T 1 lC Jt IS d I tL tL ct a II II I 1 S S 2 i 4 j 1S iA 1 I S ef sE1TE t cc o I I 1 1 0 S t It 7 e s pC t eot I 1 1 f f J J a l 3 1 4 I 0 It at S l ocl t_ j A t JI tn fP r J 4 ll 10 8 3 I 51 ...

Page 55: ...STEP 28 Install and solder the following components A Power connector subassembly Y WA SBCM The black wire is soldered to the ground T 4 you 1 A d I tl a po Q o d BLACK RED J N ilili ...

Page 56: ...following components A 12 pin female molex SC 12FM The molex clips over the edge of the super board count 1 B Fuse holder clips HW FH2 count 2 DO NOT INSTALL THE FUSE AT THIS TIME FUSE HOLDER CLIPS MOLEX HOOK UNDER BOARD I N II1II 53 ...

Page 57: ...onents A 8 pin chip IC 393 This chip must be in stalled so that the semicircular cutout or circular depression faces south count 1 B 2 pin female molex SC 2FM The molex clips over the side of the superboard count 1 o MOLEX HOOK UNDER BOARD 54 N B ...

Page 58: ... indicated by arrows Use a nut bolt and two washers for each foot with the lock washer and nut on the top of the board Congratulations You have completed the first stage of your kit assembly At this point most but not all of the soldering work is complete In stage two you will assemble and align the keyboard detail ee e Note This step completes Stage I 55 ...

Page 59: ...es mounts in one of the 53 pairs of vertical holes located in this region All but one of the switches 52 are simple spring action switches which automatically open when they are released One switch the switch used by the SHIFT LOCK key row 3 latches When this key is pressed it remains depressed until it is re leased by pressing it again During keyboard assembly you will want to refer to the diagra...

Page 60: ...al 114 Description Numerical Keyboard Caps Letter Keybo rd Caps Misc Keyboard Caps RETURN RUB OUT LINE FEED SHIFT LOCK SHIFT 2 REPEAT BREAK ESC CTRL Spacebar Keyboard Switches Locking Keyboard Switch Hardware for Mounting Spacebar Left bracket Right bracket Spacebar mount Spacebar metal bar Screws 2 Nuts 2 Note As you locate each part check the appropriate box 57 ...

Page 61: ...ched key switch the latched key switch is the only one with a black top the others have white tops B Assemble the remaining keys for the top four rows of the keyboard by installing the key caps on the spring action key switches One key switch will remain for use with the space bar SPECIAL SOLDERING INSTRUCTIONS DO NOT APPLY SOLDER DOWN ONTO THE PINS OF THE KEY SWITOHES APPLY THE SOLDER FROM ONE SI...

Page 62: ... there is clearance between each pair of keys and then put a strip of masking tape over the keys to hold this alignment Cover the keys with a piece of stiff card board to hold them in place as you turn the board over on the workspace C Solder the top pin of each switch in the top row Apply a small amount of downward pressure as you solder to insure that the switches remain fully seated in the boar...

Page 63: ...pair of keys and then put a strip of masking tape over the keys to hold this alignment Cover the keys with a piece of stiff card board to hold them in plage as you turn the board over on the workspace 0 Solder the top pin of each switch in the new row of keys Apply a small amount of downward pressure as you solder to insure that the switches remain fully seated in the board E Turn the board over a...

Page 64: ...y on the keyboard to verify that there is sufficient clearance between adjacent keys Any keys which bind can be adjusted by reheating the solder on the pins of the switch while gently pressing the key cap in the appropriate direction 61 ...

Page 65: ...gular spring act jon key switch This part is identical to the regular k y switches used in rows 1 through 4 of the keyboard _ one space bar key cap This key cap is a plastic bar 5 3 4 inches long two support brackets for the space bar plastic one space bar mount plastic one space bar metal bar two small nuts and bolts 4 pieces 62 ...

Page 66: ...own below Ohio Scientific Model 800 CPU o 1980 Y 0 3 11 CJDITJITlrnITJ J GlD 86B00800c JGc J EJ E1G JG0G0 J08c J EIEJ EJ00 D0GGD TI EJ i I li li lllj A B C Place a short piece of scotch tape over the traces on the printed circuit board where the ends of the space bar metal bar strike the board The piecesof tape should extend about 1 2 inch beyond the ends of the space bar metal bar as illustrated ...

Page 67: ... holes on the inside of the support brackets align with the ends of the space bar metal bar Insert the pins on the key switch into the holes on the printed circuit board and gently spread the ends of the support brackets and insert the ends of the space bar metal bar G Insert the cardboard strip between the space bar and lower row of keys to insure clearance Turn the board over and solder both pin...

Page 68: ...65 ...

Page 69: ...tion The video portion of the Superboard is located in the shaded region of the following diagram During this stage of construction Ie chips are inserted in the sockets in this region and the video output is tested and adjusted KEYBOARD AREA 66 ...

Page 70: ... 74LS157 IC 74LS163 IC 74LS165 IC 74LS20 IC 74LS76 IC 74LSB6 IC 74LS93 IC BT2B IC CARGEN Y WA 3SB F OOS QUANTITY 2 1 1 1 2 2 1 4 5 1 2 1 1 1 2 1 1 1 DESCRIPTION TTL TTL TTL TTL TTL TTL TTL TTL TTL TTL TTL TTL TTL BUFFER CHAR GEN 3B129 3 cable Video Cassette wiring harness assembly Fuse Note As you locate each part check the appropriate box 67 ...

Page 71: ...are perpendicular to the body of the chip If necessary gently press the legs against a flat surface to bend them perpendicular to the body of the chip 4 Begin inserting an Ie chip by partially inserting the pins at one end and then carefully press the entire chip into place after verifying that the remaining pins are properly aligned 5 Removing an IC chip requires extreme care to avoid bending or ...

Page 72: ... ch ps observix g following the guidelines g ven previously A B C D E F IC 7403 IC 74l23 count 2 IC 74LS76 IC 7474 IC 74LS04 IC 74LS163 count 3 Note p ____ In 1 instal da l Ie s step ShOU1 nbthis towards the e south 8 A I I 1 ...

Page 73: ...elines given previously A IC 7400 B IC 74LS163 C IC 74LS20 D IC 74LS157 count 4 E IC 74LS86 F IC 74LS165 G IC CARGEN H IC 2ll4 count 2 Note The CARGEN pin I should face east pin 1 on all other IC s installed in this step should be towards the south D 70 I N ...

Page 74: ... chips observing the guidelines given previously A IC 74LS 163 B IC 74LS93 C IC 7474 D IC 740B E IC 8T28 count 2 F IC 74LS20 Note All Ie s installed in this step should have pin 1 facing towards the south D c B A E 71 I N 11111111 F ...

Page 75: ...the cable supplied to connect the video output to the video in port of a video to RF modulator and follow the manufacturer s instructions supplied with the modulator The wiring harness also includes two cables for connection to a cassette recorder Any good quality cassette tape recorder may be used for program storage and retrieval The placement of the microphone and audio jacks may vary with diff...

Page 76: ...e attached to a six pin connector This connector should be inserted into pins 7 through 12 on the female mo1ex connector J2 It is inserted properly if the video cable is connected to pins 11 12 and the two cassette cables are connected to pins 7 10 c J2 pin N pin 12 1 iIiI l 73 J IIIIII I ...

Page 77: ...ched to the board to your power supply Be sure to use a power supply that satisfies the specifications stated at the beginning of this manual Connect the black wire to common or ground DO NOT TURN THE POWER ON AT THIS TIME Note that your power cable can be easily disconnected at the plastic connector in the middle Note The red lead must be connected to 5 and the black lead must be connected to gro...

Page 78: ...e power supply and check all connections to be sure they are not reversed 4 Again turn on the power supply and measure the DC voltage The reading should be between 4 8 and 5 2 Volts CAUTION A reading of more than 5 2 Volts aY J damage your board 5 Turn the power off Without changing the connections set the meter to measure on AC voltage of approximately 0 5 Volts 6 Turn the power supply on and mea...

Page 79: ... tearing Adjust this with a screwdriver until the display is steady You should see a screen full of the graphics character illustrated below OSI Character Graphics 255 however a random mixture of graphics characters is not necessarily incorrect If there is no display of characters check all connections and check IC chips for bent pins 4 R57 adjusts the cassette interf ace To set this properly turn...

Page 80: ...asically verify operation of circuitry that generates video and sync pulses 7 Check for a high low pulse on pin 37 of UB This will check operation of chip portions associated with the clock B Check for a high low pulse on pin B of USB This will confirm operation of the crystal and associated circuitry Note This last check may fail if your logic probe has a maximum input signal frequency of less th...

Page 81: ... fA 78 ...

Page 82: ... monitor ROM chips in conjunction with lK of M Part two will be the inserting and testing of the rest of the ROM section Also the ACIA Asynchronous Communications Interface Adapter will be inserted here The third part will be the installin of the rest of the RAM chips and the final testing of the Superboard Figure IV l below shows the location of these areas N I O RAM Section RAM Select 0 Keyboard...

Page 83: ... RAM IC 6502 1 CPU IC 6850 1 ACIA IC 74LS02 1 TTL IC 74LS04 3 TTL IC 74LS75 2 TTL IC 74LS125 2 TTL IC 74LS138 4 TTL IC 74LS139 1 TTL IC 74LS174 1 TTL IC BASIC 1 1 ROM IC BASIC 2 1 ROM IC BASIC 3 1 ROM IC BASIC 4 1 ROM IC SYN600 1 ROM Note As you locate each piece check the appropriate box 80 ...

Page 84: ...IV must be oriented with pin one toward the south end of the board Step 42 Use the procedure observing the precautions described at the beginning of STAGE III to insert the following IC chips A A 6502 microprocessor B 74LSl25 count 2 C 74LS75 count 2 D 74LS138 count 3 E 74LS04 8 Note All Ie s installed in this step should have pin 1 facing towards the south D D E 8 81 N D c ...

Page 85: ...nes given previously A SYN 600 B BASIC 4 C 74LS174 D 74LS02 Note All IC s installed in this step should have pin 1 facing towards the south E 74LS04 count 2 F 74LS138 G 74LS139 H Inserted previously STAGE III Step 39F H G A F E o B 82 N c Model 600 CPU 1I 3 tlO ...

Page 86: ...Step 44 Insert the following Ie chips observing the CJuidelines given previously A 114 count 2 Note All Ie s installed in this step should have pin I facin towards the south 83 N lll I l l A A ...

Page 87: ...eros are the address in hexadecimal notation for the lowest memory location The two characters following the address value are the contents in hexadecimal of that memory location The address value can be changed by simply pressing number keys or letter keys for A F To change the contents of a memory location first press the I key slash key and then press number or A F letter keys In this mode of o...

Page 88: ...wing IC chips observing the guidelines given previously A 6850 ACIA B BASIC 3 C BASIC 2 Note All Ie s installed in this step shoulc have pin 1 facing towards the south D BASIC 1 E Inserted previously STAGE IV Step 43B F Inserted previously STAGE IV Step 43A A B N c o alia Scientific Model eoo CPU o 1980 0 1I 3 va F E 85 ...

Page 89: ...s the RETURN key to get the message TERMINAL WIDTH _ I Again press the RETURN key Responses to these m ssages other than pressing RETURN are explained in the user s manuals available for your Superboard You should now see on the video display D C W M i iEMORY SIZE TERMINAL WIDTH 255 BYTES FREE OS1 6502 BASIC VERSION 1 0 REV 3 2 COPYRIGHT 1977 BY MICROS OFT CO OK Now hold down the BREAK key until t...

Page 90: ...WER FROM YOUR SUPERBOARD Insert the following IC chips observing the guidelines given previously A 2114 count 14 B Inserted previously STAGE IV Step 44A Note All IC s installed in this step should have pin 1 facing towards the south N 11111111111111 B B A A A A 87 ...

Page 91: ...ETURN key twice You should now see on the video display D C W M MEMORY SIZE TERMINAL WIDTH 7423 BYTES FREE OSI 6502 BASIC VERSION 1 0 REV 3 2 COPYRIGHT 1977 BY MICROS OFT CO OK Note particularly the number of bytes free The number should be 7423 If it is not there is a problem with one or more of the RAM chips or with the RAM chip select section If the number is 7423 then your Superboard should no...

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Page 94: ...Primer assembler introduction Understanding Your CIP and C4P OSI BASIC Reference Manual AE and EM Reference Manual assembler editor and extended monitors How to Program Microcomputers Barden 6 95 8 95 7 95 12 95 5 95 7 95 6 95 6 95 8 95 Note All manuals written for the C1p and C1P MF mini floppy also apply to the Superboard II with appropriate adjustments for memory size peripherals and so forth 9...

Page 95: ...ockets LED t 1 Keys Keyswitches Key Hardware JI I IC 7400 IC 7403 IC 7408 IC 74123 IC 7474 IC 74LS157 IC 74LS163 IC 74LS165 IC 74LS20 IC 74LS76 IC 74LS86 IC 74LS93 IC 8T28 2 IC 2114 450 IC 74LS04 Y WA 3SB IC CARGEN I 1 1 III m 1 IC 6502 IC 6850 IC 74LS02 IC 74LS04 1 IC 74LS125 IC 74LS138 IC 74LS139 IC 74LS174 IC 74LS75 IC BASICl IC BASIC2 IC BASIC3 IC BASIC4 IC SYNMON 92 ...

Page 96: ...BAG A Capacitors PAR T C I02 C I03 C I04 c 151 C 270 C 506 C 680 CB I0410 1 e sc nION 001mf 01 mf 1 mf 150 pf 27 pf 50 pf 68 pf 1 mf bypass 10 volt 93 cou r 4 2 3 3 1 3 1 39 ...

Page 97: ...BAG B Diodes Transistors and TTL s J f RT 1 t t C l l T1QIV w q Q IN4001 1C t t t 1 1 1 Q IN914 b o Q 26 Q 2N5225 T cIoM h r 1 Q 2N5226 T 1 1 5 IC 3130 s f Tt 1 IC 393 9 P u p ern 1 y e s 94 ...

Page 98: ...1 1 1 3 1 1 1 4 12 2 1 1 2 1 1 brown black brown gold brown black red gold brown black orange gold brown black yellow gold brown black green gold brown black blue gold brown green orange gold brown blue orange gold red black red gold red red brown gold orange orange orange gold orange white brown gold orange white red gold yellow violet brown gold yellow violet red gold green brown brown gold blue...

Page 99: ...rdware 1 1 1 D I 1HW FH2 SC 12FM SC 14FI SC 16FI SC 18FI 5 oIclw SC 24FI SC 40FI X 395 HW N632 HW RBI HW S632 S0 HW WM6 HW WMI6 L LEDl SC 2 FM f wF S r f w S c as 2 2 16 18 c s l I 7 2 1 6 N 6 Io r t et 6 euJ 6 0 o v 6 l o 1 Io 1 e 1 f 96 ...

Page 100: ...tity 10 26 17 52 1 8 97 Description Numerical Keyboard Caps Letter Keyboard Caps Misc Keyboard Caps RETURN RUB OUT LINE FEED SHIFT LOCK SHIFT 2 REPEAT BREAK ESC CTRL Spacebar Keyboard Switches Locking Keyboard Switch Hardware for Mounting Spacebar Left bracket Right bracket Spacebar mount Spacebar metal bar Screws 2 Nuts 2 ...

Page 101: ...BAG F J o r T w S IC 7400 IC 7403 IC 7408 IC 74123 IC 7474 IC 74LS157 IC 74LS163 m l IC 74LS165 IC 74LS20 IC 74LS76 IC 74LS86 IC 74LS93 IC 8T28 IC 2114 450 IC 74LS04 1 1 1 2 2 4 5 1 2 1 1 1 2 2 1 98 ...

Page 102: ...Video Cassette Yo l Jl Y vlA 3SB IC CARGEN F oos Subassembly e g t I 1 99 t eSc ph 0 lvJJe e c o t e H 1 l i t f v ...

Page 103: ... H w t t 11 c Ue sc fho IC 6502 1 IC 6850 1 IC 74LS02 1 IC 74LS04 3 IC 74LSl25 2 IC 74LSl38 4 ISl IC 74LSl39 1 IC 74LSl74 1 IC 74LS75 2 IC BASICl 1 IC BASIC2 1 IC BASIC3 1 IC BASIC4 1 IC SYNMON 1 l C 1 I 31 f c es 100 ...

Page 104: ...n POSSIBLE CAUSE Defective video cable Improper adjustment of R5S Crystal oscillator circuit failure Video timing chain malfunction Defective monitor ROM Defective BASIC 4 Auto Reset Circuit Malfunction USO R76 S5 C60 62 C64 D25 27 D30 32 Malfunction of Vertical sync U65 or associated circuitry Improper video timing U6l Improper video timing US9 Improper video addressing US3 Bad RAM chip Bad RAM s...

Page 105: ...ased cassettes of good quality for recording programs to avoid noise and other problems associated with old cassettes When your program is in the form you wish to save place a cassette in the recorder and rewind the cassette so that the tape leader is visible on the right hand spool or to the point at which you wish to store the program if you are storing more than one program on a cassette The fo...

Page 106: ...ADING CASSETTE PROGRAMS The standard cassette based Challenger IP and the Superboard II are supplied with a CIP Sampler cassette which contains a selection of programs illustrating various capabilities of the Challenger 1P system The following instruc tions describe how to load and run programs stored on cassette With the cassete recorder attached to the CIP as described in section five and the se...

Page 107: ... 53724 53756 53788 53820 53852 53884 53916 53948 53980 54012 54044 54076 54108 54140 HEX D09C D06C D00C 00FC D11C D13C D15C D17C D19C D1BC 010C 01FC 021C 023C D25C 027C D29C D2BC D2DC D2FC D31C 033C D35C D37C HEX DEC rTllrlTI rr T T rrTl rr IT T T r r T T r r r r r DEC HEX 00BB 53387 De8A DfCB 53 51 98 OfFA r r r rr r 1 rr r r rr 1 010B 53515 53562 013A 020B 53771 53818 023A 53882 027A 531M6 02BA ...

Page 108: ... b CHARACTER GRAPHICS o 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 A 11 8 12 C 13 0 14 E 15 F 16 10 17 11 18 12 19 13 20 14 21 15 22 16 23 17 24 18 25 19 26 1A 27 18 28 1C 29 10 30 1E 31 1F 32 20 33 21 34 22 105 ...

Page 109: ...9 27 40 28 41 29 42 2A 43 28 44 2C 45 20 46 2E 47 2F 48 30 49 31 50 32 51 33 52 34 53 35 54 36 55 37 56 38 57 39 58 3A 59 38 60 3C 61 30 62 3E 63 3F 64 40 65 41 66 42 67 43 68 44 69 45 70 46 71 47 72 48 73 49 74 4A 75 48 76 4C 106 ...

Page 110: ...83 53 84 54 85 55 86 56 87 57 88 58 89 59 90 5A 91 58 92 5C 93 50 94 5E 95 5F 96 60 97 61 98 62 99 63 100 64 101 65 102 66 103 67 104 68 105 69 106 6A 107 68 108 6C 109 60 110 6E 111 6F 112 70 113 71 114 72 115 73 116 74 117 75 118 76 107 ...

Page 111: ...0 126 7E 127 7F 128 80 129 81 130 82 131 83 132 84 133 85 134 86 135 87 136 88 137 89 138 8A 139 88 140 8C 141 80 142 8E 143 8F 144 90 145 91 146 92 147 93 148 94 149 95 150 96 151 97 152 98 153 99 154 9A 155 98 156 9C 157 90 158 9E 159 9F 160 A0 108 ...

Page 112: ... 168 A8 169 A9 170 AA 171 A8 172 AC 173 AD 174 AE 175 AF 176 80 177 81 178 82 179 83 180 84 181 85 182 86 183 87 184 88 185 89 186 8A 187 88 188 8C 189 80 190 8E 191 8F 192 C0 193 C1 194 C2 195 C3 196 C4 197 C5 198 C6 199 C7 200 C8 201 C9 202 CA 109 ...

Page 113: ...1 210 02 211 03 212 04 213 05 214 06 215 07 216 08 217 09 218 OA 219 OB 220 OC 221 00 222 OE 223 OF 224 E0 225 E1 226 E2 227 E3 228 E4 229 E5 230 E6 231 E7 232 E8 233 E9 234 EA 235 EB 236 EC 237 ED 238 EE 239 EF 240 F0 241 F1 242 F2 243 F3 244 F4 110 ...

Page 114: ... 245 F5 246 F6 247 F7 248 F8 249 F9 250 FA 251 FB 252 FC 253 FD 254 FE 255 FF III ...

Page 115: ...Program too big or too many GUSUBs FOR NEXT loops or variables OV 0 Overflow Result of calculation too large for BASIC SN S J Snytax error Typo etc RG R RETURN without GOSUB US U Undefined Statement Attempt to jump to non existent line number 10 1 Division by Zero CN C J Continue errors attempt to inappropriately continue from BREAK or STOP LS L Long String String longer than 255 characters OS 0 O...

Page 116: ...A Output Vector f 021C Control C Check Vector I 021E LOAD Vector 0220 SAVE Vector 0222 02FA Unused 0300 end of RAM BASIC Workspace A000 BFFF BASIC in ROM D000 D3FF Video RAM DF00 Polled Keyboard F000 F001 ACIA Serial Cassette Port F800 FBFF ROM FC00 FCFF ROM Hoppy Bootstrap FD00 FDFF ROM Polled Keyboard Input Routine FE00 FEFF ROM 65V Monitor FF00 FFFF ROM BASIC Support FFFA NMI Vector FFFC Reset ...

Page 117: ... IIZUIZS lllUlI lII _ II 1 1111 _ _I 114 AI II 0 I All II III 12 III II IC 11 IS lit It 1 10 1111 IU U 11 IA II I III JoAII ZG II ZA II II ITO 12 III 1 I ll II I ll II AI II AI II It II 10 JI Ie Ie It OIl II 001 Il 011 II DIJ OIl It It OIl 1 DOl II 10 It III 14 IIU n n WSI II r f I AI AI AI II 10 lZ AU 21 AID I II 00 10 DI II Dl U ClIO All II OJ 11 0 II 01 II 00 II DI II IIItrT Oo D Q OCII I tI 0 ...

Page 118: ...or Tape MCS Monitor Chip Select VRCS Video RAM Chip Select NMI Non maskable Chip Select R Row RKB Read Keyboard RSO RS7 Ram Select RVE Read Video Enable R W Read Write RX CLK Receive Clock RX DATA Receive Data T1 T4 Time Clock Delays TX CLK Transmit Clock TX DATA Transmit Data V Video VA Video Address VO Video Data VS Vertical Sync WKB Write Keyboard WVE Write Video Enable O Microprocessor Clock I...

Page 119: ...l r Ut Q C T c 2 o J GR l n u Q 4 I S GRI ll ltl 1 i GR jU J M 4 r u5 B RS Z lL Cl l 4 2 1s PRlt 4TtR RC lJf r lit a M t t Jf J l P tI t k Q l C l R J 5 S f l l1 E A f R PR i l E t lira S f S 2 7 QE if F lR MQDc S tJ N r t t t M Jt a C t T E Q t t T QN OF oQ Ul OHIO SCIENTIFIC date revision page Co ac 5 U 116 product namejnumber S t l S 11 status sneet I of l 6 1 P DP 1Po ...

Page 120: ...J 18 r N lint IlJ UID21 1 r 1I 7 IInz lzp l Dl zt6 r I z H I 1 21 r M ItZ 2l I U zz r AI I t z12l I4l31 n L II IH I4t1 Z L AU Izeo I I I I tD I J 25 L AIl aM 2 i A 141 M 21 rl ls bNlUNb 8 II 1 1 01 Z l o 3 2 5y liliilt 1 D z IIIIY I 3Z DI 1 b o tiO to 5 0 D 2 1 os Z1 010 Ze D1 AI U I AI I u Co III z l 5 Al 3 I 5 3 AS ts A 2 I 7 a I C L t T 1I 1II a I1II1AIi I 1 An 1 f I Jt I T bini 8 i ml po llJ u...

Page 121: ... 1 1 I 1 1 I LL L 1 J I I I I I I I I I I 1 J 1 J JIL L IIL L III_ II_ L III_ L LII _ I 1111111111 II II II j I J11 1 11ca 1 J t t r I 1 II T I 11r T 1 1 T T I I T 1 11 11 11 1 11 11 Q I L I I I 1 1 1 1 II II III I J r J I I I I I I I I I I I I I I I I I I I I I I I I I I I J J J L LL LL ii i 1 1 II II c N I ...

Page 122: ...Q U G C J J 4 CI i i i 4 i 111 Q a N tj lt7 0 Q 11 Q r oC lit III 01 UJ I ca UJ LL I Z W i d C 4 en N 7 i I z 0 as J t s J Q 0 i 4 I I I i I 119 ...

Page 123: ...Q s r a 0 C C I 1 1 9 n o a a 0 120 I 1 2 J s w 2 ...

Page 124: ... J r J Nin IcI1 f l1t t l l oC 1 J i fG i ll r G l f J w 121 J on I Q r i I S I III lAo N 0 0 1 Nl I t 1i a a II i I t c t f i 1 f I 1 t 4 tl t InQ i a N I 23 3 lJl 0 lt1 G G c CIJ en J co CIJ ii A Ii j J LL I J 2I Ql N w d II Z W J J t 0 c 2 dJ i I G 3 0 d 8 r Itt i i r rs S I 1 l CII NT T r I I 1 Y f V 1 I I II I ____ j ...

Page 125: ...223 HY l6O CS2 1 lOY CB I04I0 I iPI MAGI 201 QCI 223 HY 360 CS3 1 10V CII I0410 HGPI HAGI201 QCI 223 HY 360 C54 1 10V C8 10410 I4GPI 11AG1201 QCI 223 HY 360 C55 001 lOOV lOS C I02 C56 1 10V I1GPI AG1201 OCI 223 HY 360 C57 27pF IKY lOS C 270 C58 1 lOY CII I04I0 I PI AG1201 QCI 223 HY 360 C59 1 IOV CB I0410 HGPI HAGI201 QCI 223 HY J60 RESISTORS REPLACEMENT DATA REPLACEMENT DATA ITEM RATING MFOR WORK...

Page 126: ...ECG74163 004163 74LS163 IC 74LS163 SK74LS163 ECG74LS163A TH74LS163A U31 U40 L2114 SS0 IC L2114 S50 U41 CARGEMV1 0 IC CARGEM U42 SN74LS16SN IC 74LS165 ECG74165 TM74165 U43 740SN IC 7408 GE 7408 SK7408 ECG7408 TH7408 WEP7408 1408 U44 PROTO U4S US2 L2114 550 IC L2114 550 U53 US5 74LS 57N IC 74LS157 SK74LS157 ECG74LS157 TH14LS157 U56 SN74LS20J IC 74LS20 SK74LSZO ECG74LS20 TH74LS20 US7 74LS163N IC 74LS...

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Summary of Contents for Superboard II

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Ohio Scientific Superboard II, Assembly Instructions Manual, Page: 71 / 126

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Summary of Contents for Superboard II

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