Teletype Basic KSR Repair Manual Download

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Summary of Contents for Basic KSR

Page 1: ...e the113 teleprinter T M TELETYPE InrI REPAIR MANUAL for BASIC TERMINALS without an Internal Data Set ...

Page 3: ...quacy of this manual will be welcomed This sheet may be removed and mailed directly to Teletype Corporation This sheet may also be used for ordering additional copies of this manual Comments to Order manuals from Mail To Teletype Corporation 5555 Touhy Avenue Skokie IL 60076 Dept 3212 Dept 2181 3 ...

Page 4: ...meter No specially designed tools or shop facilities are required for repair operations however standard 43 teleprinter terminals or components or local strapping may be required to perform or simulate on line and interface testing when the teleprinter is not installed on location The 43 Teleprinter Circuit Diagram Manual 385 provides circuit informa tion extracted from this manual The component l...

Page 5: ...G DISASSEMBLY AND REASSEMBLY CIRCUIT DESCRIPTION AND DIAGRAMS ADJUSTMENTS AND SPRING TENSIONS PARTS AND UNIT CODES PACKING AND MARKING SUPPLEMENTAL MANUALS INCLUDED KSR INSTALLATION AND ROUTINE SERVICING MANUAL 368 Issue 3 RO INSTALLATION AND ROUTINE SERVICING MANUAL 373 Issue 2 KSR HOW TO OPERATE MANUAL 367 Issue 2 RO HOW TO OPERATE MANUAL 372 Issue 2 ...

Page 6: ...GRAMS ADJUSTMENTS AND SPRING TENSIONS PART 4 PACKING AND MARKING PART 5 STATION INSTALLATION AND VARIABLE FEATURES ROUTINE MAINTENANCE AND LUBRICATION r 4 STATION OPERATION I I PARTS AND UNIT CODES PART 6 KSR Installation and Servicing Manual 368 RO Installation and Servicing Manual 373 KSR How to Operate Manual 367 RO How to Operate Manual 372 PART 7 PART 8 PART 9 PART 10 PART 11 ...

Page 7: ...in this part or an installation checkout using the HTO manual should be performed to make sure the teleprinter is operational 1 06 On trouble calls a local test or a trouble verification test under the direction of a test station if available should be performed to isolate the trouble within or to the teleprinter After correction of a trouble the test may be confined to the specific area that was ...

Page 8: ...mmunication test devices are not available To perform these tests the connector terminals as follows should be strapped before proceeding with the tests The remaining terminals should be connected or measured as specified during the test steps Note Contact Teletype Corporation Sales Department 312 982 2000 for availability of a 43 Teleprinter Interface Test Box which pro vides both arrangements sh...

Page 9: ...iJklMnopqrstuvwxyz N tX IOt23456789 ABCDEFGHIJKlHNOPURSTUVUXYZ _ abcdefghiJklMnopqrstuvwxyz H tX IOt23456789 ABCDEF6HIJKLHNOPDRSTUVUXYZ _ abcdefghijklMnopqrstuvwxyz P X I0123456789 ABCDEF6HIJKLHNOPDRSTUVUXYZ h_ abcdefghijklMnopqrstuvwxyz H tX IOt23456789 ABCDEF6HIJKLHNOPGRSTUVUXYZ h_ abcdefghijklMnopqrstuywxyz H X IOt23456789 ABCDEF6HIJKLMNOPGRSTUVUXYZ h_ abcdefghijklMnopqrstuvwxyz N ItX IOt234567...

Page 10: ...left hand margin and paper feeds to next line Characters printed as in Fig 3 Fig 2 1234567890 OWERTYUIOP ASDFGHJKL ZXCVBNM 1 Fig 3 1 23456 890 qwer tyuiop asdf 3hjkl z cvbnf l 1 Fig 4 TABLE A Cont OFF LINE TEST PROCEDURES PROCEDURE Depress RETURN and then LINE FEED key Depress and release CAPS LOCK key so it returns to UP position Starting with top row and moving left to right depress each unshade...

Page 11: ...f Fig 6 TABLE A Cont OFF LINE TEST PROCEDURES PROCEDURE Depress RETURN and then LINE FEED key Hold CTRL key depressed and depress S B key Hold CTRL key depressed and depress ilL key Hold CTRL key depressed and depress rn key H Depress SPACE BAR lV1ANUAL 391 1 5 RESPONSE Characters printed as in Fig 6 RESPONSE Print head returns to left hand margin and paper feeds to next line SUB prints 8 Signal b...

Page 12: ...BAR six times Depress SPACE BAR two times Depress ESC and then c key ESCx Depress SPACE BAR nine times Depress ESC and then rnkey ESCL lower case L RESPONSE Print head moves one character position to the left Paper feeds to next line The k is printed until end of line is reached Signal bell rings at end of line TERM READY AUTO ANSW goes off LOCAL LOCAL TALK and ALARM turns on ALARM goes off Print ...

Page 13: ...int head returns to left hand margin Column 10 and paper feeds to next line Turn off POWER switch and connect the test arrangement shown on Page 1 2 to the interface connector before proceeding to Step 32 If the 43 Teleprinter Interface Test Box is available connect the test box to the teleprinter interface connector TTL or EIA See instructions furnished with test box TEST STEP Loopback 32 32 a TA...

Page 14: ...PLEX Type the following TEST Watch TERM READY AUTO ANSW key then hold CTRL key depressed and depress E T key Depress INTRPT key Hold CTRL key depressed and depress RETURN key RESPONSE Print head is returned to left hand margin Paper feeds to next line Meter should read 0 ohms Issue 2A Logic Card DATA turns on INTERFACE CONNECTOR 5 V dc will be present on pin 7 12 V dc will be present on pin II 12 ...

Page 15: ... across entire new line Bell rings at end of line and automatic return and line feed will be performed One printed line plus return will occur in approximately 4 seconds sprocket feed 2 5 seconds friction feed Refer to Option 435b for any exceptions Continuous Ks will be printed across entire line Bell rings at end of line and automatic return and line feed will be performed One printed line plus ...

Page 16: ...epress ESC key and then mkey RESPONSE SQrocket Feed DATA remains off LOCAL LOCAL TALK remains on Friction Feed DATA turns off LOCAL LOCAL TALK turns on Alarm turns off DATA turns on LOCAL LOCAL TALK turns off TERM READY AUTO ANSW turns on DATA turns off ALARM flashes EIA INTERFACE CONNECTOR DATA turns on TERM READY AUTO ANSW turns off 12 V will be present on interfacepin 25 Analog Loop TTL INTERFA...

Page 17: ...O ANSW key Replace the paper Place CPS key in UP position 30 CPS Place DUPLEX key in UP position HALF DUPLEX MANUAL 391 1 11 RESPONSE oV will be present on TTL interface pin 1 Digital Loop 5 V dc will be present on TTL interface pin 1 Digital Loop Signal bell rings sprocket feed only TERM READY AUTO ANSW turns off LOCAL LOCAL TALK and ALARM turn on TERM READY AUTO ANSW remains off LOCAL LOCAL TALK...

Page 18: ... to the interface connector Printer performs one line feed Connect Carrier Detect to Data Term Ready DATA turns on Turn on Teleprinter POWER switch TTL INTERFACE Connect the test arrangement shown on Page 1 2 to the interface connector Connect Terminal Ready to Data Ready Tum on Teleprinter POWER switch B Variable Features Checkout TABLE C VARIABLE FEATURES CHECKOUT PROCEDURES CHECK PROCEDURE RESP...

Page 19: ... The lower case 0 does Option 432 c not print on 80 character lines ZI C I0123456789 ABCDEFGHIJKLHNOPORSTUVUXYZ A_ abcdefghijklMn pqrstuvwxyz I N Z C I0123456789 ABCDEFGHIJKLHNOPORSTUVUXYZ h_ abcdefghijklMn pqrstuvwxyz l Sprocket Feed 13 characters per inch Friction Feed 10 characters per inch Fig 7 Printer Test Message TABLE C Cont VARIABLE FEATURES CHECKOUT PROCEDURES CHECK PROCEDURE RESPONSE Op...

Page 20: ...on Depress the following keys PARITY TEST Option Place teleprinter in loopback mode Characters will be printed until end 435 b Place DUPLEX key in DOWN position of line is reached FULL DUPLEX Automatic return and line feed will not be performed Depress REPT and K keys Bell will sound continuously until Hold down until end of line is reached keys are released Note Options 433 434 and 435 Depress LO...

Page 21: ...bcdefghijkl nopqrstuvwxyz N I I01234 6789 ABCDEFGHIJKL NOPORSTUVUXYZ _ abcdefghiJkl nopqrstuvwxyz N ZI 0123456789 ABCDEFGHIJKlHNOPORSTUVUXYZ A_ abcdefghiJkl nopqrstuvwxyz H ZI I0123456789 IABCDEFGHIJKlHNOPORSTUVUXYZ A_ abcdefghijkl nopqrstuvwxyz N ZI I01234 6789 ABCDEFGHIJKlHNOPORSTUVUXYZ A_ abcdefghijkl nopqrstuvwxyz N ltZI I0123456789 IABCDEFGHIJKlHNOPORSTUVUXYZ A_ abcdefghijkl nopqrstuvwxyz N I...

Page 22: ...inal Ready to Data Ready Turn on Teleprinter POWER switch Tum off POWER switch Remove RO Operator Console and install KSR Operator Console Remove cover and manually depress INTERLOCK Switch during test procedure RESPONSE ALARM turns off Character printing stops Print head returns to left hand margin Paper feeds to next line ALARM turns on TERM READY turns off ALARM remains on ALARM turns off TERM ...

Page 23: ...following TEST Watch TERM READY AUTO ANSW key then hold CTRL key depressed and depress Eg key Depress INTRPT key Hold CTRL key depressed and depress RETURN key MANUAL 391 1 17 RESPONSE TERM READY AUTO ANSW turns on W TTL Interface Onl 5 V will be present on pin 7 12 V will be present on pin 11 12 V will be present on pin 13 GND will be present on pin 9 AANNAALLOOGG is printed TEST is printed DATA ...

Page 24: ...rt friction Feed feed Paper Out Sprocket Feed 18 Watch DATA key and depress LINE FEED key eight times RESPONSE Continuous Ks will be printed across entire new line Bell rings at end of line and automatic return and line feed will be performed One printed line plus return will occur in approximately 4 seconds sprocket feed 2 5 seconds friction feed Refer to Option 435b or 436b for any exceptions ro...

Page 25: ...is completes the OFF LINE test of the 43 RO Teleprinter Remove the KSR Operator Console and replace the RO Operator Console MANUAL 391 1 19 RESPONSE SQrocket Feed DATA remains off LOCAL LOCAL TALK remains on Friction Feed DATA turns off LOCAL LOCAL TALK turns on ALARM flashes sets W TDU ALARM turns off sets W O TDU DATA turns on LOCAL LOCAL TALK turns off DATA turns off TERM READY AUTO ANSW turns ...

Page 26: ...t Print head returns to left hand margin shown on Page 1 2 to the interface connector Printer performs one line feed Connect Carrier Detect to Data Term Ready DATA turns on Tum on Teleprinter POWER switch TTL INTERFACE Connect the test arrangement shown on Page 1 2 to the interface connector Connect Terminal Ready to Data Ready Tum on Teleprinter POWER switch B Variable Features Checkout TABLE F V...

Page 27: ..._ abcdef hijkl n pqrstuywxyz N Sprocket Feed 13 characters per inch Friction Feed 10 characters per inch Fig 10 Printer Test Message TABLE H Cont VARIABLE FEATURES CHECKOUT PROCEDURES CHECK PROCEDURE RESPONSE I Option Place teleprinter in loopback mode 433 b Depress DUPLEX key to DOWN position FULL DUPLEX Depress the following keys ABC Printer will print ABC Hold CTRL key depressed and DATA remain...

Page 28: ...OWN position Depress DUPLEX key to DOWN position FULL DUPLEX Depress the following keys PARITY TEST Measure continuity between pins 4 and 20 on RG opcon connector RESPONSE Continuous Ks will be printed across entire line Bell rings at end of line and auto matic return and line feed will be performed One printed line plus return will occur in approximately 14 seconds sprocket feed 8 5 seconds frict...

Page 29: ...FORWARD RESIST COMPONENT IDENTIFICATION ANCE 17 AND LEAD DESIGNATION 37 STATIC CIRCUIT RESISTANCE 17 STATIC CIRCUIT RESISTANCE 37 6 PRINTER TROUBLESHOOTING 18 TEST POINTS AND VOLTAGE READINGS 38 TROUBLESHOOTING GUIDE 18 7 LOGIC CARD TROUBLE 1 GENERAL SHOOTING 20 1 01 This part provides troubleshooting infor TROUBLESHOOTING GUIDE 20 mation for the 43 KSR and RO teleprinter power supply friction or ...

Page 30: ...ned on 1 10 Before disconnecting internal cables or replacing circuit cards tum off ac power Make certain power cord is connected to a properly polarized and grounded ac outlet Replace cables before turning on power 1 11 When replacing the power supply fuse wait 10 seconds after turning off power before removing the fuse 1 12 The printer is not considered a field replaceable item Any trouble can b...

Page 31: ...his Part LOCAL AND ON LINE TESTS JV TROUBLE IN TELEPRINTER V CONFIRM DEFECT REPLACE MAJOR COMPONENT OR OTHER CORRECTIVE ACTION V TROUBLE CORRECTED IN TELEPRINTER YES r NO MANUAL 391 2 3 FUSE DISASSEMBLY AND REASSEMBLY PART 3 REINSTALL MAJOR COM PONENT IN TELEPRINTER Paragraph 5 6 7 8 and 9 in this Part ISOLATE AND CORRECT TROUBLE IN MAJOR COMPONENT i 1 1 V PARTS AND DISASSEMBLY CIRCUIT DESCRIP ADJ...

Page 32: ...Replace logic card Replace opcon lc Does red lamp on power supply Unplug TAU if present Check F2 fuse on power now light opcon and printer 6 supply Replace if blown cables Reconnect power supply Replace power supply cable Replace rear frame assembly Go to 1d I I 1d Does red lamp on power supply Go to 1e Replace logic card still light I I 1e Does red lamp on power supply go out after the TAU opcon ...

Page 33: ...n recon nect one at a time to isolate cause of lamp not lit Replace defective compo nent refer to printer troubleshooting I I 1 4c Does anything print or perform Go to 4d Place printer test bypass switch SPD4 2 on logic card to ON position If ok replace opcon R place logic card 4d Does anything print Go to 4e Replace logic card Refer to printer troublp shootin 1 1 1 4e Are characters properly form...

Page 34: ...icator light when 1 paper is out and when 2 cover is opened 7 Do all characters print and func tions except bell and margin set perform when the keys on the keyboard are operated local mode Go to 7 Go to S Replace logic card Go to 5a Replace opcon 1 Check printer trouble shooting 2 Replace opcon 3 Replace logic card Replace opcon Replace logic card S Does signal bell ring on CTRL G Go to 9 Go to S...

Page 35: ...e require Use issue 2A logic card or Sets without TAU trouble is Request to Send EIA interface strap ON in cable in external device to be on Sets with TAU go to 13c 13c Is Data Term Ready pin 20 EIA Trouble is in external Replace TAU 14 interface on 3 V device Does DATA indicator on opcon light when external device is in data mode Go to 15 Go to 14a 14a Is EIA interface Clear to Send Go to 14b Tro...

Page 36: ...icator lit Replace logic card 20 Does the carriage return auto Go to 21 Check option 435 matically when characters to the right of the right hand margin Replace logic card are received DATA indicator lit 21 Does Term Ready turn off Go to 22 Check option 433 momentarily on received EOT and when carrier is not received Replace logic card in data mode call disconnect Replace TAU if present on switche...

Page 37: ...ests with Testing Station in remote station or other locally developed tests including digital loop back under control of Testing Station to isolate trouble to line TAU or logic card 26 Is trouble present but not defined Refer to printer or opcon by Questions 1 to 25 troubleshooting for other symtoms Replace opcon power supply TAU logic card and or print head to correct trouble ...

Page 38: ...ic card Replace opcon lc Does red lamp on power supply Unplug TAU f present Check F2 fuse on power now light opcon and pnnter 6 supply Replace if blown cables Reconnect power supply Replace power supply cable Replace rear frame assembly Go to ld 1 ld Does red lamp on power supply Go to Ie Replace logic card still light Ie Does red lamp on power supply Replace the TAU opcon Intermittent short go ou...

Page 39: ...n power supply now Reconnect power supply Replace power supply light cable Unplug print head and motor cables then recon nect one at a time to isolate cause of lamp not lit Replace defective compo nent refer to printer troubleshooting 5c Does anything print or perform Go to 5d Place the printer test bypass switch SPD4 2 on logic card to ON position Ifok replace opcon Replace logic card 5d Does any...

Page 40: ...ing Go to 7 Go to 6a printer test r 6a Does ALARM indicator light whpn Replacp logic card cover is opened 7 Does ALARM indicator light when Go to 8 1 paper is out and when 2 cover is opl ned Rl placl OpCOI1 1 Clwck printer trouble shooting 2 Replace opcon 3 Rpplac logic card 8 Does signal bell ring on received CTRL G Go to 9 Go to 8a 8a Did signal bell ring during printer test 9 Does signal bell r...

Page 41: ...pcon Go to 13 Go to 12a light when external device in data mode 12a Is EIA interface Clear to Send Go to 12b Trouble is external devi ce pin 5 Carrier Detect pin 8 and Data Set Ready pin 6 on 3 V Request to Send on if required by external device strapped or Issue 2A logic card present t t o 12b Is TTL interface Data Ready pin Replace logic card Replace TAU if present 15 on 13 Are data messages pro...

Page 42: ...28 interrupt 19 Does station pass on line end to TrouhlE if any is Perform distortion dBm level end tests with Testmg Station in rE motl station or other locally developed tests including digital loop back under control of Testing Station to isolate trouble to line TAU if present or logic card 20 Is trouhle present hut not defined H pfer to printer or opcon by Questions 1 to 28 troubleshooting for...

Page 43: ...c dc circuit pin 5 6 5 V Check oscillator and pin 8 12 V control circuit see pin 7 12 V Note 202 on crrcuit pin 1 3 42 V diagram Check components in primary circuit 1 1c Is 5 present and within range on J201 pin 5 Go to 1d Check CR16 CheckML5 Check T1 F M I 1d Is 12 V present and within range on J201 pin 8 Go to 1e 1 1e Is 12 V present and within Go to 1f range on J201 pin 7 Check CR18 CheckML6 Ch...

Page 44: ... a 0 tC mIl 8 c D o rJ4 2 R28 5 1 cBm i __ ll c 5 0 8 t Bu n BL3 g lili U_ r _ r CRI6 rnnr CR24 ML c a o 9CJ CRI4 CRI7 c IJ CR5 CR I a I Ml6 FI j1i c CJ J J G i 1xr r a 4 1 9I P CR9 CRI9 ML7 a u ii J CI3 mn r an 9 l 8 CR20 tI J Q3 Mll rn CJ I r r CI I I I I c L_J SEMICONDUCTORS AND INTEGRATED CIRCUITS IDENTIFICATION AND LEAD DESIGNATION CR25 Anode Ga Cathode CR5 CR20 CR22 CR24 CR26 CR27 CR31 c Cat...

Page 45: ...C 30 ohms CR19 24 ohms QI0 B E 30 ohms CR20 32 ohms B C 30 ohms CR21 G C 48 ohms Qll B E 30 ohms G A 42 ohms B C 30 ohms CR22 32 ohms CR23 34 ohms MLI 1 2 60 ohms CR24 32 ohms 4 6 48 ohms CR25 G C 110 ohms 5 6 48 ohms G A 38 ohms CR26 34 ohms ML5 B E 40 ohms CR27 34 ohms B C 25 ohms CR28 110 ohms LED on CR29 28 ohms ML6 B E 70 ohms CR30 28 ohms B C 25 ohms CR31 28 ohms CR32 28 ohms ML7 B E 38 ohms...

Page 46: ...lly with power off Check for proper spacing belt spring tension Check platen end play adjust ment Check continuity of spacing motor and encoder Check switch No 1 on print head Replace motor and or encoder or cable Replace lead screw nut Check line feed belt tension Check for mechanical bind by rotating platen manually with power off Check platen end play adjust ment Check line feed follower pulley...

Page 47: ...h power off and carriage moved manually check that ribbon moves with carriage without slipping during return and does not move when carriage is moved to the right Check carriage and left bracket ribbon rollers for one way rotation f 1i 2 Sprocket Feed Does printed copy align properly with edge of paper prints equally on each side of page perforation Did bell ring during PRINTER TEST Undefined prob...

Page 48: ...iage return and line feed at end of received line 9 Does Terminal Ready turn off momentarily on received EOT and when Carrier is not received in data mode call disconnect on switched network 10 Does ALARM indicator light when cover is opened and turn off when cover is closed 11 Do analog and digital loop modes function properly 12 Does ALARM indicator light when paper is out 13 Does test message p...

Page 49: ...t phase drivers MLC7 outputs 17 Are carriage motor phase 1 through Check carriage motor Replace MLC7 4 signals present and correct at MLC7 phase drivers outputs Check velocity encoder 18 Is keyboard send data present on Replace MLC4 Check for open circuit MLC4 32 19 Is correct voltage levels present on Go to 19a Check continuity to MLE3 2 JI07 from MLE3 1 Replace MLE3 1 19a Is send data present an...

Page 50: ...t voltage level present on Replace MLC4 MLC4 28 and 22 25 Is correct voltage level present on Replace MLC4 MLE3 4 26 Is trouble present but not defined by Undefined trouble questions I through 25 refer to Circuit Descrip tions and Diagrams etc NO Check continuity from MLE3 11 to J107 Replace MLB4 Replace MLC4 r Replace MLB5 Check continuity from MLB4 pins 3 and 5 to JIOI Replace MLB4 Check SPD4 SW...

Page 51: ... a I o IILC4 GJ R14 RI3 c JoRI2 NOT PRESENT Q21 ca iP ON ISSUE IB cJ R5I C PCIO I R52 j JCR27 CR26 POSITIONS REVERSED ON ISSUE IB COMPONENT IDENTIFICATION AND LEAD DESIGNATION c CRI CR27 Cathode A 1 0 2 3 4 5 6 7 Anode MLA8 MLB4 MLB5 MLEI MLE3 14 13 12 11 10 9 8 Top View 1 0 2 3 4 5 6 7 8 QI Q5 Q7 Q20 MLD2 MLE6 MLE7 MLE8 16 15 14 13 12 11 10 9 Top View B Base E Emitter C Collector Q6 1 20 D 40 MLC...

Page 52: ...dle 3 75 V Repeat space 2 V Idle 49 V Repeat space 50 V Carriage returning 37 V Odd column 1 75 V Even column 4 V Odd Column 53 V Even column 45 V Idle 3 75 V Repeat space 2 V Idle 49 V Repeat space 50 V Carriage returning 37 V Q10 B Q10 C Even column 1 75 V Odd column 4 V Even column 53 V Odd column 45 V Q11 thru Q19 B Idle 4 V Repeat character printing 3 7 V Q11 thru Q19 C Idle 42 V Q20 B Q20 C ...

Page 53: ... 5 Idle 3 V MLE7 14 Idle 3 V Repeat space 2 V Repeat printing 2 75 V MLE6 6 Idle 0 75 V MLE7 15 Idle 4 V Repeat line feed 3 5 V Repeat printing 3 7 V MLE6 7 Idle 5 V MLEB 4 Idle 3 5 V Repeat line feed 3 5 V Repeat line feed 2 5 V MLE6 9 Idle 3 V MLEB 5 Idle 2 1 V Repeat line feed 1 25 V Repeat line feed 1 25 V MLE6 10 Idle 4 V MLEB 6 Idle 4 V Repeat line feed 2 5 V Repeat line feed 2 5 V MLE7 2 Id...

Page 54: ... 20 ohms B E 70 ohms B C 30 ohms B E 35 ohms B C 35 ohms B E 30 ohms B C 30 ohms CONNECTOR TERMINAL REFERENCE POINT RESISTANCE Approx LO HI P201 6 5 V P201 7 12 V P201 8 12 V P201 1 42 V P201 9 logic gnd P201 9 logic gnd P201 9 logic gnd P201 2 power gnd 24 ohms Infinity 95 ohms 55 ohms Note Take resistance reading reverse meter leads and take second resistance reading 1100hms Infinity 600 ohms 8K...

Page 55: ...L LOCAL TALK indi Go to 7 cator light when its keyswitch is depressed 1 6a Does LOCAL LOCAL TALK indi Go to 20 cator light when PRINTER TEST key is depressed 7 Does DATA indicator light or flash Go to B when its keyswitch is depressed r 7a Does DATA indicator light under Go to 20 any conditions ie loop back auto matically from TERM READY AUTO ANSW mode B Does TERM READY AUTO ANSW Go to 9 indicator...

Page 56: ...ressed 14 Do any characters repeat shift Go to 28 to upper case or become a control function when only that key is depressed CAPS LOCK key released up 15 Are any erroneous characters Go to 28a generated when the corresponding keyswitch is not depressed ie tap ping on keyboard or depressing any other keyswitch 16 Do all data keys generate characters Go to 16a Shift Control Upper and Lower Case 16a ...

Page 57: ...properly latch click etc 20a Is keyswitch in question PRINTER Go to 20b Go to 21 TEST PARITY Interlock DUPLEX or CPS 20b Is 5 V present on pin 1 of keyswitch Go to 20c Check cable for open circuit when keyswitch is open released up position 20c Is 0 V present on pin 1 of keyswitch Go to 29 Check for open circuit to in question when keyswitch is PI07 pin 4 closed depressed down position Check for o...

Page 58: ...nputs with no keys tion to keyswitch ie depressed depression pulse does not appear at associated keyswitch pin 1 Check for cold solder connections at terminals of keyswitch Replace keyswitch 28 Does keyswitch in question REPT Go to 28a left and right SHIFT CAPS LOCK or CTRL meet the mechanical requirements depress and release properly latch click etc 28a With jumper strap connected from Check for ...

Page 59: ... present on Replace defective sense Replace MLA5 keyswitch logic inputs MLA5 10 amp 11 or 12 with no keys depressed 29 Is trouble present but not defined Undefined trouble Review initial indication refer to Circuit Descrip of trouble tions and Diagrams etc ...

Page 60: ...B3 14 MLB4 13 3 12 4 11 5 10 6 9 7 8 A Anode SEMICONDUCTOR IN CIRCUIT STATIC FORWARD RESISTANCE COMPONENT RESISTANCE Approx CR1 CR9 30 ohms STATIC CIRCUIT RESISTANCE See Note CONNECTOR TERMINAL REFERENCE POINT P107 3 12 V P107 2 12 V P107 8 5 V P107 4 logic gnd P107 4 logic gnd PI07 4 logic gnd 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 RESISTANCE Approx LO HI 30 oh...

Page 61: ...100 000111100 111111111 6 2 6 16 o 0 1 100110 f 101000110 F 000000110 ACK 6 3 6 17 101100001 a o 0 1 00 0 0 0 1 A 100000001 SOR 5 1 7 18 100001000 Back Space 100001000 Back Space 010011100 9C 5 2 7 19 100100000 Space 100100000 Space 100100000 Space 5 3 7 20 001110111 w 101010111 W 000010111 ETB 3 1 8 21 001101100 l 101001100 L 000001100 FF 3 2 8 22 101110110 v 001010110 V 100010110 SYN 3 3 8 23 10...

Page 62: ...7 4S 001011100 101111100 I 000011101 GS 17 2 17 49 100110111 7 100100110 010010110 96 17 3 17 50 001100101 e 101000101 E 000000101 ENQ 16 1 IS 51 101111111 Delete 101111111 Delete 000000000 NUL 16 2 IS 52 101101101 m 001001101 M 100011100 FS 16 3 IS 53 101100100 d 001000100 D 100000100 Ear 15 1 19 54 000001010 Line Feed 000001010 Line Feed 000001010 Line Feed d t r I t r I t j n 0 t j 0 t r I r n ...

Page 63: ... present on the corresponding Check for open circuit in connector pin at P107 cable 7 Does pin 1 of PRINTER TEST key Check cable for open cir switch toggle from 5 V to 0 V when cuit keyswitch is depressed 8 Is negative pulse present on MLA3 3 Go to 10 when PRINTER TEST key is released 9 Does voltage on MLA3 3 toggle from Go to 10 5 V to 0 V when RESET key is depressed and toggle from 0 V to 5 V wh...

Page 64: ...correct 10e With MLA3 11 and 8 connected Check START LATCH Replace MLA2 to GND are pulses present on Replace MLB4 MLA2 8 1I Is 0 V present on INTERLOCK Check cable for open Replace defective keyswitch SWITCH pin 1 when INTERLOCK circuit SWITCH is closed depressed 12 Is trouble present but not defined Undefined trouble Review initial indication by question 1 through 11 refer to Circuit Descrip of t...

Page 65: ...I I COMPONENT IDENTIFICATION AND LEAD DESIGNATION MLA2 MLA1 MLA3 MLB1 MLA4 MLB2 MLB3 14 MLB4 13 12 11 10 9 8 STATIC CIRCUIT RESISTANCE See Note CONNECTOR TERMINAL REFERENCE POINT P107 8 5 V P107 2 12 V P107 4 logic gnd P107 4 logic gnd 1 0 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 RESISTANCE Approx LO HI 22 ohms 80 ohms Infinity Infinity Note Take resistance reading reverse meter leads and take second ...

Page 66: ...V as switch is released Depress and release Printer Test Switch Meter will momentarily deflect from 0 V to 0 1 V as switch is released Depress Reset Switch 4 V Release Reset Switch 0 V Depress and release Printer Test Switch Meter will momentarily deflect from 4 V to 3 9 V Depress Reset Switch 0 V Release Reset Switch 4 V Depress Reset Switch 4 V Release Reset Switch 0 V Depress Reset Switch 0 V R...

Page 67: ...leprinter and their major components 1 02 The procedures provided in this part break the terminal down into major com ponents and sUbcomponents Part 6 Parts and Unit Codes illustrate the arrangements of compo nents and parts Caution Remove all power from the set before performing any component replacement 1 03 When removing a major component or part from the terminal do not pry or force parts to p...

Page 68: ...iction Feed Deflector Sprocket Feed Paper Holder Sprocket Feed Paper Holder Friction Feed Set Cover Rear Frame Paragraph 3 01 3 01 3 01 3 01 3 01 3 04 3 05 2 TOOLS REQUIRED 2 01 The following tools may be required when performing the printer disassembly and reassembly procedures Most of these items should normally be present in standard maintenance tool kits Part No 75765 94646 95368 96364 100704 ...

Page 69: ... remove the terminal auxiliary unit a Sprocket Feed _I Remove TAU Grasp each end and pull straight up MANUAL 391 3 3 Disconnect logic card plug from connector located on top of TAU Remove any cord connectors Remove paper and paper holder Remove deflector r if present 3 Remove two screws ...

Page 70: ...d plug from connector located on top of TAU LOW PAPER SENSOR Remove any cord connectors t Disengage latch from mounting posts Pull straight up Remove paper holder assembly Pull toward rear and slide off of mounting posts Note In reassembly align low paper sensor mounting hole with mounting hole in rear frame MOUNTING HOLE LOW PAPER SENSOR REAR FRAME ...

Page 71: ...lifting up and away from low paper sensor cable if present to remove power supply f oDisconnect logic card cable plugs from connectors located on top of power supply and TAU if present POWER SUPPLY oUse screwdriver and pry two clips left and right outward Friction Feed Only C Power Supply Fuse 3 03 To remove the power supply fuse a Sprocket Feed CDRemove paper holder deflector and bustle cover Per...

Page 72: ...osen two screws one each side Tilt top of clamps outward releasing front isolators connected to the opcon REAR RAIL Note 1 In reassembly perform the KEYBOARD TO COVER ALIGNMENT adjustment Note 2 When replacing the cover or indicator scale perform the COLUMN INDICATOR POSITIONING adjustment Note 3 Loose operator consoles are shipped with 184056 screws and 346397 isolators furnished in a loose envel...

Page 73: ...emove two screws if present one each side 2 Disconnect cable plugs Snap the spring clips out of place and move aside releasing the rear frame Pry with screwdriver Gently pull the rear frame to the rear while lifting to disengage the hook shaped details at the top front of the rear plate The hook shaped details fit into the notches on the rear plate and hold the rear frame in place Remove the rear ...

Page 74: ...h end of the logic card front cover and push outward on the sides until the locking tabs are free of the logic card Disconnect bell cable from logic card Pl04 6 PIN PLUG CABLE FROM BELL ON PRINTER Pl05l6 PINPLUG CABLE FROM ENCODER ON PRINTER I Pl03 6 PIN PLUG CABLE FROM PAPER OUT OR LOWER PAPER SWITCH I PlOl 6 PIN PLUG Rear View CABLE FROM CABLE FROM PRINT HEAD OPCON Pl02 8 PIN PLUG CABLE FROM LFM...

Page 75: ...n CDGrasp the bustle cover and slide the printer and rear frame assembly from the housing through the rear opening LEFT PAPER STRIPPER Remove retaining ring from paper separator shaft CDSlide paper separator to the right until it clears the paper stripper and remove Remove the rear frame assembly Perform 3 05 steps 1 through 5 Remove the operator console Perform 3 04 steps 3 5 6 and 8 Remove the l...

Page 76: ... fro m paper separator shaft CD Slide paper separator to the right until it clears the left paper stripper and remove 5 Push paper release to the rear 4 Push down and to the I rear on roller bail lever r use screwdriver Slide paper release to the right and slowly pull forward until paper release clears retaining ring on lever shaft ...

Page 77: ...over and deflector if present CD Push the printer and rear frame assembly into the housing through the opening in the rear of the housing There are two molded guide rails in the bottom of the housing to steer the assembly into position eDLock the printer and rear frame assembly into position Insert a screwdriver into the square hole in the nut plate and gently twist or pry the screwdriver with eno...

Page 78: ...ng handle to the right Move retaining clip on locking handle extension protruding from left side of carriage wall approximately 1 4 inch away from wall Pry with screwdriver oDisengage print head from roll pin on end of link Remove print head REAR NOSE PROJECTION _ FRONT Left Side View Remove ribbon Refer to How To Operate Manual 367 or 372 Part 10 or 11 Move print head and carriage to the right of...

Page 79: ...manually rotated and held toward front of carriage wall by grasp ing the link Install print head rear notch onto roll pin at end of link PRINT HEAD COVER Rotate locking handle frontward until it strikes the guide rod then pull locking handle to the right until collar drive key on locking handle engages slot in right carriage side wall Observe interaction of these parts for use when performing step...

Page 80: ... and carefully connect the print head cable plug to the logic card Make sure cable does not touch left side frame when the carriage moves fully left Install ribbon Refer to Part 10 or 11 of this manual prInt head forward until collar drive key on handle engages snaps into slot in collar Note Parts referred to were visible in step 3 Move the handle all the way to the rear locking the print head in ...

Page 81: ...cover by lifting up and away from grommets GROMMETS Remove solder from around connector pins of cable connector Warning Use a grounded low wattage soldering iron avoid prolonged contact with pinsj along with a desoldering tool to prevent damage to card circuits and components Grasp the cable connector and gently remove the connector and insulator from the circuit card Note In reassembly make sure ...

Page 82: ... sticks and ASSEMBLY manually move each armature back and forth and verify each wire is positioned properly into its respective hole in the wire guide CDGently wipe ink from surface of no 1 and no 9 print wires Slowly push ribbon guide onto center frame until no 1 and no 9 print wires can be seen thru holes in wire guide Insert an 0 010 inch 96364 flat gauge or equivalent into opening between ribb...

Page 83: ... enclosure Sleeve 4 07 To remove the sleeve CDRemove the cover perform 4 02 step 1 ARMATURE armature gently outward away from print wires until sleeve slides free of print wire hook and armature tab clears bobbin PRINT WIRE NORMAL ARMATURE POSITION PRINT WIRE HOOK COIL ARMATURE TAB Grasp armature and push toward ribbon guide magnet will pull armature away from ribbon guide until armature touches b...

Page 84: ...m 4 07 steps 2 and 3 Note In reassembly note positioning of brass nuts and verify correct position as shown before tightening screws Lubricate any armatures removed and replaced B Spacing Motor Belt 4 09 To remove the spacing motor belt Remove solder from around coil assembly terminals Warning Use a low wattage tDlderingiron avoid prolonged contact with terminals along with a detDldering tool to p...

Page 85: ... lockwashers Remove motor belt Remove housing Remove screw lockwasher y flat washer and nut Remove cable assembly by lifting upward I J 9 Remove cover PRY POINT Remove encoder disc assembly Insert screwdriver under housing bridge and under bottom hub of encoder Hold encoder disc with thumb and gently pry screwdriver outward removing disc Retain the fastener which is part of the disc assembly Note ...

Page 86: ...sembly make LINE FEED BELT TENSION adjustment b Late Design Remove the logic card perform 3 06 steps 2 through 8 Remove line feed belt Remove tension arm spring from retaining post 7C _ II1I Remove three screws and stop bracket Remove tension arm post flat washer and lockwasher Remove retaining ring and slide tension arm and roller assembly from pivot shaft Note In reassembly make STOP BRACKET adj...

Page 87: ...esign MANUAL 391 3 21 Remove platen pulley and clip Note In reassembly position the setscrews away from the slot in the platen clip b Late Design Loosen two setscrews and remove platen pulley and clip Remove tension arm spring from retaining post ...

Page 88: ...ay from the slot in the sprocket clip Perform the LEFT and RIGHT SPROCKET adjustments and PRINTED LINE POSITION and PLATEN ENDPLAY adjustments F Lead Screw 4 13 To remove the lead screw G Push in right bearing housing to clear right frame Rotate 90 degrees and spring will force bearing and housing away from side frame Remove bearing housing inner and outer bearings and spring Right Side View RIGHT...

Page 89: ...mes outward and remove front guide rod two felt washers and clamp with cover H Lead Screw Nut 4 15 To remove the lead screw nut CD Remove print head perform 3 09 o Remove lead screw perform 4 13 LEAD SCREW NUT CD Tilt lead screw nut handle outward to clear retaining notch in carriage Rotate counterclockwise CCW until tabs on nut align with opening in carriage Spring will force nut away from carria...

Page 90: ... forward Pull the handle to the right while slowly rotating handle and collar clockwise rearward until key on handle aligns with slot in carriage Locking handle will pop out Remove paper tray CDPull paper tray shaft out to right PAPER GUIDE Unhook and retain two paper tray springs one each side Lift left and right paper guides to up position loosen mounting screws friction tight and position paper...

Page 91: ... 25 Remove retaining ring from paper tray shaft 4 Remove roller bail spring from post Remove roller bail assembly Pull paper tray shaft to the left and remove Unhook and retain two paper tray springs one each side ...

Page 92: ...osts on brackets CDWith paper guides up loosen mounting screws friction tight position paper guide bracket toward the frame by using a screwdriver in the pry points Note 3 In reassembly LEFT AND RIGHT PAPER GUIDE adjustments must be made b Friction Feed No tel Left and right guides are removed in a similar manner Remove left and right paper guides from posts on brackets Remove two springs one each...

Page 93: ... spring bronze colored from the wire bail using a spring hook and pull toward the front Fig 2 SPACEBAR BUMPER i1t 7ijj i RE LEAF BAIL SPRING SPRING HOOK Fig 2 Leaf Spring Disengagement b Disengage the two rear tines one at each end of spacebar with a small screwdriver while pulling the spacebar up and toward the front Fig 3 CHANNEL Rear View Fig 3 Spacebar Removal c Continue applying upward pressu...

Page 94: ...fully extended unlatched position before attempting to remove the key Failure to observe this pre caution will result in a damaged keyswitch c To remove control keys Fig 7 1 Grasp key using thumb and index finger 2 Exert upward force until key releases Fig 7 Control Key Removal d To remove RETURN key with housing 1 Remove keys BACK SPACE OVER LINE GS US LINE FEED SHIFT and QUOTES that surround the...

Page 95: ... be removed Fig 12 MANUAL 391 3 29 JlI SOLDER REMOVED Fig 12 Solder Removal Warning Use a grounded low wattage solder ing iron avoid prolonged contact with pins along with a desoldering tool to prevent damage to keyswitch card circuits and components d Place 346257 tool over the keyswitch and press downward When the tool bottoms and embossed projections snap into notches on keyswitch squeeze and p...

Page 96: ...ol keys from the channel Use a spring hook to remove the cover from the mounting posts Fig 16 SPRING HOOK Pull Up Top View Fig 16 Cover Removal e Cut the cable tie securing the cable to the circuit card f Grasp the cable connector using thumb and index finger g Exert upward force until cable connector releases Fig 17 4 29 To reassemble the cable a Insert new cable connector into circuit card holes...

Page 97: ...until cable connector releases g While biasing the right rear corner of the circuit card downward slide the cable to the right until it clears the circuit card Remove the cable Top View Fig 22 Cable Connector Removal MANUAL 391 3 31 G Channel KSR 4 31 To remove the channel a Remove all keytops associated with chan nel to be replaced Refer to B Keys b Remove all keyswitches associated with channel ...

Page 98: ...ight side has square slot Note 2 Remove backing paper from one side only if applying RM79324 vinyl tape Fig 25 Channel and Tape RM79266 RM79331 RM79324Mio Fig 26 Tape Identification b Slide channel to the left and engage tines on left side frame CHANNEL o Cl Cl Cl c J Cl C OOOOOOG LEFT SIDE FRAME TINES Fig 27 Channel Engagement c Replace right side frame with all channels engaging side frame tines...

Page 99: ...refer to D Keyswitches c Remove the two screws securing the circuit card to the channel Fig 28 CHANNEL 0000005 0000 000000 t CIRCUlT CARD Top View Remove Fig 28 Channel Removal d Remove the right side frame by removing four screws Fig 29 Remove Fig 29 Right Side Frame Removal e Pull channel to the right and lift out ...

Page 100: ...side frame with channels engaging side frame tines c Replace the two screws that secure the channel to the circuit card d Replace all keyswitches previously removed e Replace all keys previously removed I Circuit Card Components 4 35 To disassemble the circuit card components a Remove circuit card shield by removing four screws b KSR Only If circuit card components to be replaced are located in Ro...

Page 101: ...d Warning Use a grounded low wattage soldering iron avoid prolonged contact with pins along with a desoldering tool to prevent damage to card circuits and components e Lift up and remove component J Keyboard Layout Fig 33 43K001 AAA RO c l c l c J c I c I LOCAL DATA AUTO INTRPT ALARM TALK ANSW PRINTER ON UP HALF UP 30 UP I TEST PARITY OUPLEX CPS OFF ON FULL ON IO ON Fig 34 43K101jCAA KSR ...

Page 102: ... A Circuit Card 4 36 To remove the circuit card ALARM SPACE BAR PRINTER TEST HALF UP DUPLEX FULL DN 30 UP CPS IO DN FEED N DELETE lJ L Fig 35 43K101 CAB KSR Pry circuit card from four supports and remove circuit card from cover HEAT SINK 2 Remove two cover mounting screws screws ...

Page 103: ...L6 ENCLOSURES AND PAPER HANDLING Paper Supply Friction Feed 4 37 To remove the lever arm CDRemove paper roller CDUnhook the lever arm tension spring from the molded post on the support Insert spring hook into rear opening and pull spring from post MANUAL 391 3 37 Caution See Part 2 paragraphs 1 15 through 1 20 before applyingpower with cover or heat sink removed or attempting repair of the powersu...

Page 104: ...ever arm into support REAR 4 39 To remove the reset lever shaft G Grasp end of spring with spring hook and attach to molded post Attach two springs to lever arm and insert into opening in support Route spring rearward and around support RESET LEVER SHAFT Remove retaining ring and pull shaft upward ...

Page 105: ...grams for the 43 Basic KSR and RO teleprinters and their major components except for the internal data units 1 02 Wave forms and voltage levels are shown on the diagrams wherever possible to aid in troubleshooting and understanding of the circuit theory Circuit descriptions refer to coordinates on the schematic ie C2 to locate the circuit being described 1 03 For additional troubleshooting informa...

Page 106: ...R Circuit 2 09 The Power On Reset circuit if present G4 delays the application of ground to MACON and MAPL after power turn on for 50 milliseconds E Velocity Encoder 2 10 This circuit is comprised of an OPTICAL switch feedback amplifier and hysteresis amplifier which produce a pulse train with repe tition rates proportional to the average carriage motor rotor velocity This signal is used by MAPL t...

Page 107: ...e will decrease Consequently the outputs are regulated against line and load chan_ges MANUAL 391 4 3 E Primary Power Conversion 2 22 Drive pulses to the base of Q10 will cause pulse transformer T2 to produce a positive pulse of similar duration on its secondary This pulse is connected through R18 and CR10 to the base of the primary switching transistor Q1 2 23 The positive drive on the base of Q1 ...

Page 108: ...l appear as mark space data on the serial send data lead The mark high level of Send Data and Repeat Mode RPMD is limited to 5 V by C 2 CR3 CR4 and R7 F7 The code consists of 11 bits One start bit 8 code bits one parity bit and one stop bit One bit time 143 milliseconds C Clock Generation and Drivers 2 33 The 560 KHz clock from pin 12 of P107 C1 is divided by 5 by MLB3 R28 R29 C11 and C12 delay ap...

Page 109: ...he clock logic enabled the address counter is advanced at a 7 KHz rate and proceeds to count up until a count of 54 is reached F ROM Stored Data 2 43 As the address counter is advanced bit information that is stored in level 2 of the ROM FlO is serially shifted out via pin 11 at a 7 KHz rate to the printer logic 2 44 When address count 54 is reached the level I output of the ROM goes to 0 V causin...

Page 110: ...NG J K I BLOCK OR II I r n I O O F l l I I EXTERNAL COMMUNICATIONS DEVICE I L _____ J GllU I L _ _ _ _ _ __ LOW PAPER OR rZOI PAPER OUT MAY NOT BE PRESENT WHEN USING RO TELEPRINTER OR ON PRIIiATE LINE APPLICATIONS 0 6 AMP FUSE fl SLO BLO U JI05 0OPTION SWITCH SPD4 KSR OR RO OPCON JI06 CJ LOGIC CARD OPTION O SWITCH SPS5 RO ONLY PI03 104 r I Q PRINTER OPCON ...

Page 111: ...I I I G 3 1 5 VDC I I L OPTICAL SWITCH J 430047 CARRIAGE MOTOR W CABLE 14 15 16 MANUAL 391 4 7 PI05 PlO3 PI02 PlOl e 5 6 u 5 6 e 5 0 181 6 e e 3 0 181 4 3 0 4 e 1 0 0 2 3 0 18I 4 1 0 181 2 e e 1 0 0 2 e e e e PI04 e e 1 PlO6 2m 5 6 1 0 3 0 0 4 1 0 0 2 PlOl II S FRONT VIEW 1 LOGIC 51 S GND I 41 G 1 LOGIC 6I W BK GND I PAPER OUT SWITCH Paper In SPROCKET FEED PlOJ LOGIC LOW PAPER SWITCH Paper Not Low...

Page 112: ...R ON ANY OF THE FOUR PHASE LEADS ODD AND EVEN COLUMN WAVE FORMS WILL AIJJIAYS APPEAR ON ALTERNATE PHASES JI 3 SV I SV I_I __ I RPD3 6 8K 2 S W3 IS 430097 PART OF 430047 ASSEMBLY L _________J S 7 4 36 JI07 4 2 J 0N MACON 4 8 J 0N 9 I _R4_1 I II K _SW ______ __ AU T 0 A N S W _______ 0_V O_F_F ANS RHM 19 __ 0_V_ 0 _F_F__ RI G HT H A N D M A R GI N_____ IO R40IK SW INTRPT 3 S R_ IK _S_W____ f____ A L...

Page 113: ...1 SINGLE CHARACTER L J 0 1 PRINTED r MLC7 I I 5V RPD3 4 1 6 8K L ________J 109 8 r 9 SW 8 1 8 FO 10 S W 7 7 _ fFI 1 S W 6 1 6 1 4 ILLO I I 12 1401 S W S S 4t ___ 5 Ll I I L L D_ J ___________ 1 9 elK DIGITAL LOOP GRD 20 5V ASSEMBLY R4 2 4K LEFT MARGIN SWITCH 5 1 POWER ON 18 lEN v8ToFOFN LHM 7 PRINT LEVEL I PRINT LEVEL 2 PHO 3 9 PH 11 3 8 2 _ 37 PRINT LE VEL 3 PH2 _ _ _ _ _ _ __ PRINT LEVEL 4 36 PH...

Page 114: ...UPPLY IS PWMED IIITO All ISOLATIOfI TRAIIWOIIN R OIRICT COMl CTION TO T GROUNDS WITHOUT 15OI ATI0II WILL CAUSE COMPONENTS TO AIL 501 302 303 304 305 I I I L _ ________ J TERMINALS Ot SIGN TlOIl ENCLOKD IN P RENTHESIS ARE 1I0T AIIIIED ON THt CO PONENT ll RESISTORS ARE 1 4 w 5 AND All IN OH S UNLESS OTHERWISE SPECIFIED ALL CAPACITORS VALUES IN CRO FARADS UNLESS OTHERWIK SPECI IED TRANSPO MU WINDIIIG...

Page 115: ...12V il 42V 1150 2 4K 5 I IE t4ZV II 12 ML7 r C CZ2t I OSCILLATOR Il CONTROL CIRCUIT VOLTAGE REFEIIENCE AND E OIl AMP 114e I OK IZV 16V 41 15 llV V EF 1138 tr c 1 t UV 12V 7 12V E Cll21 w v LA n 112lS 3 3K 20 K H Z S Q 5 L2 h Z 4 1 3 3 K M i 5 14 1 1139 OV B 13 1 100 WAVE OSCILlATOH 4 _ til2 I 8 12 I 1 10K 24 R38 I T 1140 10K 1 30 IK 1 PFD 9 1 0 MEG tlZV t 60 GEN OIl 1134 330 CI2 0 1 1151 4 7MEG T ...

Page 116: ... OJ SEE SENSE I AMP CHART I I II 28 27 26 25 24 23 22 2 I 20 10 19 II IB 12 17 13 16 15 ML AI A5 A6 B4 NOT PRESENT ON ISSUE IA KEYSWITCH LOGIC AND SENSE AMPLIFIERS 811 1Il2L I lL R24 10K CR5 R31 1 5K 12 11 R32 1 5K Oil V RI3 10K CR6 Oil 12 II R25 R20 10K 10K 1 2 3 m SEC j 1 1I1II1II1II1II1II1I1I 7 22 25 1 t 3 5 SEC 16 II I I 1 511 L JI L _ L L J ov Oil KEY DEPRESSED 1211 tL TYPICAL KEYSWITCH I SEE...

Page 117: ...LEXI 18 O Lr I 18 HtLF 1 8 93 I U SEC __ Jl 1 5V OV 1 8 93 I SEC u lEe I O FON PARITYI ZO I 20 I 1 O ro OFF PRI TER TESTl 1 9 I J 1 o J rt r II 5V J U 7 5V I r u I 3 I 10 5V F 3 41 ____ EYSWITCH 1 13 I 4r 15 PL I I 1 IOv ON I I IZV OATAI I 1 1 1 0 5 v 0 r F_ _ _ 4 t 1 li _ I I I I I 1 IOV 0 I 1 TERM READYIAUTOA SW I 9 1 10 5V s F 1 4 I_ I__ I IOV 0 I 1 I TIIPT I _ I __ 0 1_ 10 5V f OF F _ _ _ _ _ ...

Page 118: ...WITCH PACK DESIGNAT O SWITCH PACK LOCATIO SWITCH NO SP B SWI IBOTTOM VIEW BOTTOM VIEW CONTACT INDICATOR INFORMATION NOTES CONT 20 INTEGRATED CIRCUITS EXTERNAL VIEW AND LEAD DESIGNATION III EWED FROM TOP o o 3 12 3 14 4 II 4 13 5 10 12 6 9 6 1 1 7 8 7 10 8 9 MLA2 A3 A4 MLAI BI B2 83 84 206 CO NECTOR INFORMATION PI071FEMALE PLuG DESIGNATION INPUT 0UTPliT KE POSIION 2 1211 3 4 LOGIC GROUND 5 ALARM 6 ...

Page 119: ...1 COUNT 432 I A 00 38 0001 0001 39 00 II 0001 40 00 II 0001 41 00 II 0001 42 0011 00 II 43 0001 00 I I 44 0001 00 II 45 0011 00 II 48 000 I 00 II 47 0001 0001 4B 0001 000 I 49 0001 0011 50 0001 0001 51 0011 00 I I 52 0001 000 I 53 0011 0001 54 0110 0001 0001 0 LO I I HI 2 0 I 0 0 O SPACE I MARK c PI07 I N TE R L O C K 19 PR INTER TE ST INHIBIT ENABLE 14 8 CPU IILSI 4 193 7 KH IK SWITCH r ______ __...

Page 120: ...NCLOSURES AND PAPER HANDLING KEYBOARD TO COVER ALIGNMENT COLUMN INDICATOR POSITIONING 5 SPRING TENSIONS SPRING IDENTIFICATION 1 GENERAL PAGE 8 9 10 10 10 11 12 1 01 This part provides adjustments for the printer enclosures paper handling and spring tensions 1 02 Belt tensions are checked with a spring scale held at the angle shown in the adjust ment illustration 1 03 After an adjustment is complet...

Page 121: ...3 8 Inch Open End 3 PRINTER ADJUSTMENTS 135677 135678 117781 95960 135676 75765 142554 142555 82711 110443 110444 135059 94647 95368 100982 151392 124682 125752 129534 152835 LEFT PAPER SPROCKET Sprocket Feed Only LEFT SPROCKET Requirement The left sprocket should be biased against the collar of the platen hub To Adjust Loosen set screws and position left sprocket to meet requirement RIGHT PAPER S...

Page 122: ...ely 45 degrees tighten screws LEFT AND RIGHT PAPER GUIDES Angular Positioning Friction Feed Only Requirement The left paper guide should seat fully on the hub The right paper guide should also be fully seated against the hub and the center paper guide should just touch the platen in the middle To Adjust On left side loosen the two mounting screws friction tight and move the left paper guide mounti...

Page 123: ... screws PRINT HEAD TO PLATEN Requirement There should be SET SCREWS Min 0 025 inch Max 0 035 inch SETSCREWS LINE UP SPRING SCALE MIDWAY BETWEEN PULLEYS Left Side View gap between the ribbon guide of the print head and the platen without paper or ribbon and at all positions of the carriage and platen when platen play at the right end is biased down and to the rear and the print head is locked To Ad...

Page 124: ...ully engage the lower metal plate of the cartridge Tighten the latch mounting screws o j bT z _ METAL PLATE MOUNTING BRACKET MAGNET POLE PIECE UNEFEEDFOLLOWERPULLEYSTOPBRACKET Note For units with line feed pulleys only Requirement With the follower pulley resting on the belt push the pulley against the belt to take up all friction Slowly release pressure Measuring between the follower lever and th...

Page 125: ... to meet the adjustment PRESSURE ROLLER BAIL Friction Feed Only Requirement SLIDE FOR 80 CHARACTER LINES FOR 72 CHARACTER LINES Printed line centered MOUNTING SCREW With the paper release lever in the forward position and the right end of the carriage next to the right rear carriage wick located immediately under the arm of the pressure roller bail between the two pres sure rollers there should be...

Page 126: ...t 2 Requirement The fingers at both the left and right ends of the platen should be Min Some Max 0 015 inch beyond the recorded gap between the platen and the left and right ends of the paper guideplate To Adjust Bend fingers to meet requirement PAPER ALARM CONTACT LEVER Sprocket Feed Only Requirement MANUAL 391 5 7 LOCKNUT With the paper alarnl contact lever resting on the paper and the paper hel...

Page 127: ...ge of a typed line of M characters should be 1 32 1 64 inch above a horizontal line located by any of the following methods l A line drawn between the lower edges of two opposite sprocket holes 2 A preprinted line on the form the same as in l above or in 1 6 inch multiples 3 A fold midway between two sprocket holes on fanfold paper Power must be on line feed motor for this adjustment SPROCKET FEED...

Page 128: ...itioned away from the platen the lower armature extension on the high part of the cam adjusting cam slot horizon tal and the flat facing toward the ribbon guide and the armature released from the inner pole plate rotate the adjusting cam slowly clockwise until the armature is magnetically pulled up Continue rotating cam clockwise for 3 more clicks Adjustment Rotate the adjusting cam to meet the re...

Page 129: ...shing and clamp left and right sides To Adjust Insert a screwdriver into the square hole in the nut plate and gently twist or pry the screw driver with enough force to meet the require ment Warning Do not overtwist the screwdriver COLUMN INDICATOR POSITIONING Requirement HOUSING Top View Right Corner With power applied the cover closed and the print head positioned to column one 1 the print head m...

Page 130: ...1 ounce to start paper out lever moving 0 430118 Bell Plunger Spring 1 2 to 1 ounce to seat plunger CD Link Spring Part of 430216 3 4 to 1 1 4 ounces at roll pin to hold spring in lowest position with locking handle in the most forward position CD 4708 Paper Tray Springs Left and Right 2 On sprocket feed units lift paper out contact bail to latched position Move the printhead away from the platen ...

Page 131: ...MANUAL 391 5 12 SPRING IDENTIFICATION ...

Page 132: ...its are in cluded Examples of nonreplaceable parts not shown but included in higher order assemblies are as follows a Part as supplied would not fit if installed b May require manufacturing as shop me thods not provided in this manual c Part of crimped riveted pressed or weld ed assembly d Serial number or registration plates 1 03 Units and parts are listed in the index in numerical order and indi...

Page 133: ...d With TAU 4310 AAD Friction Feed With TTL 4310jAAE 43 KSR Sprocket Feed 43 RO Sprocket Feed KSR TELEPRINTERS Sprocket Feed With TAU 4320 AAC Sprocket Feed With TTL 4320jAAA Friction Feed With TAU 4320jAAD Friction Feed With TTL 4320jAAE 43 KSR Friction Feed 43 RO Friction Feed Internal Interface Connector TTL TAU Connector ...

Page 134: ...D UNITS AND TERMINAL PARTS 430035 RIBBON 43K001 AAA RO OPCON 410740 LOGIC CARD 430700 POWER SUPPLY 430246 Friction Feed Only MANUAL 391 6 3 43P251 AAA PRINTER SPROCKET FEED 430751 TAU Terminal Auxiliary Unit ...

Page 135: ...MANUAL 391 6 4 3 KSR AND RO TELEPRINTER TERMINAL Cant 430550 Rear Frame Assembly 192007 CD Part of 430561 Part of 182182 O O 143306 ...

Page 136: ...MANUAL 391 6 5 4 POWER SUPPLY A 430700 Power Supply Assembly 430169 410700 ...

Page 137: ...37 DIODE 400 V CR2 408037 DIODE 400 V CR3 408037 DIODE 400 V CR4 408037 DIODE 400 V CR5 430725 DIODE ZENER 51 V CR6 430713 DIODE ZENER 190 V CR7 430605 DIODE 1N4936 CR8 300102 DIODE 1N4156 CR9 430605 DIODE 1N4936 CR10 430605 DIODE 1N4936 CRl1 430605 DIODE 1N4936 CR12 430605 DIODE 1N4936 CR13 430605 DIODE 1N4936 CR14 430605 DIODE 1N4936 CR15 430605 DIODE 1N4936 CR16 430605 DIODE 1N4936 CR17 430715 ...

Page 138: ...omponent side strap added from left side of R23 to cathode of CR19 and strap added from left side of R30 to cathode of CR22 81 replaced C16 Note 5 At customer identification Issue 4B ML1 was changed from 404325 Note 6 At customer identification Issue 4C the following change was made bushing under Q1 changed from 327809 to 430734 Note 7 At customer identification Issue 4D R34 was changed from 32121...

Page 139: ...3 r _lliIir I IV 163765 L_____ 114 f 5 O 163765 11 c 9 _ JfJ l Friction Feed 430281 I I i j J 3 I I I 43001 I r ____ I I J 430143 I 430145 I I I l __ __ y I 430264 I _______ 163765 f __183876 ____ ffJ t fJJ0 rzJ c tII i 430013 v 183321 430206 430098 41 4301 ...

Page 140: ...nage Assembly 151618 2l9 rr 7002 I o I 151629 I I l 186731 430216 430070 CDPart of 430216 Part of 430215 Con r W Link Part of 43021 7 a nage W Post ndge Assembly 430073 I r I r 1 430192 430231 MANUAL 391 6 9 ...

Page 141: ...pacing Motor 430319 10 characters per inch 430214 13 characters per inch 430162 400602 DPart of 430047 Motor W Cable and Encoder Part of 430055 Cable Assembly Part of 430190 Motor W Cable CD151685 W CDI04807 tfl130683 I 430162 CD 430178 ...

Page 142: ...MANUAL 391 6 11 D Line Feed Motor Sprocket Feed Early Design Drive and Bell Assembly Q 400602 184055 9 I I 30117 Q Part of 430154 Motor Assembly Part of 430117 Cable Assembly 144550 181461 430114 ...

Page 143: ...ont E Line Feed Motor Friction Feed and Late Design Drive Sprocket Feed r I I I I I 2191 1 lc 7002 430240 J 119652 DPart of 430154 Motor Assembly Present only when Early Design 430002 Left Side Plate is used J I I l __ 0 I 430144 ...

Page 144: ..._____ d30106 110743 19649 r 430105 t L i 1 4302 27 2669 l J o l _________ __Jj ___ I 430242 w __ tJi n 0 0 _ ___ 430100 430104 11 52 1__ _ J J 4708 1 430228 184055 2191 224 198670 430212 430226 430254 184056 430193 430267 430100 Friction Feed 430232 e 1 119649 r 97393 II It YV I I O A 119652 i ___ O 4708 1 430104 CJ O O _ __ l oc 430 430228 r _ 430224 l_ __ 1 198670 184056 I I J 430256 I 4 30255 I...

Page 145: ... I I I I Early Design I 430276 119651 I rJ Late Design I I 430205 I f J 1 I Early Design 119649 164958 i 430104 3599 ___ _ j 430036 1 l1 110743 50f I 4708 430101 101386 430102 J I 430103 i 184056 161708 t 430180 I __ I I I I I I l 184056 181242 J O 6 y 0 _ 184056 430169 I I r _ I REF ___ L _ 1 _ ...

Page 146: ...51 J 430258 430291 r I I I I I J I I I I r J I 184056 MANUAL 391 6 15 119649 430104 s _ r I I I _ I L 430268 430101 X_ 101386 r _ I I I I I I I I I J 119649 I 430265 J 0 1 125015 430266 I 649 161708 430180 I _ I 181242 430265 430001 184056 ...

Page 147: ...PRINTER Cant I Paper Tray Sprocket Feed Early Design 119652 119653 186731 1 I I I 4300t _ Sprocket Feed Interim Design II E A I Sprocket Feed Late Design and Friction Feed 119653 430258 7 430259 7002 I _____151880 110743 ...

Page 148: ...MANUAL 391 6 17 J Spacing Drive and Lead Screw Assembly 430022 I 112485 430032 430027 430020 0G G 1 430028 430222 430026 430034 ...

Page 149: ... I I I V 430811 3640 430812 a _ I V 430811 430821 0430803 Cable Assembly 410013 Card W Cable I I I l 430817 Iii I 430829 430830 I I I I I I I I I I I 0409013 I I 0430803 1 I I I I I 1 430804 I I I I I lf 0430832 I L 430814 I __ I l O 430822 ...

Page 150: ...E 4 Ie III ODDDCDDC 00000000 191 16 JI05 NOTE 1 JI06 I a IJoCR2 NOTE 5 GJ R14 c J RI3 143307 0 6A cC J R12 SLO BLO FUSE Q2I Not Present on Issue 1B cR2T nJ Positions Reversed u J CR26 on Issue 1B _ 181240 SCREW W WASHER 2 PIs 3598 NUT 2 PIs II 119332 SCREW 2 PIs 98642 WASHER 2 PIs MLCT MLC4 MANUAL 391 6 19 403412 DIP SOCKET 2 PIs SP04 CI7 GCJ 20 i 19 ID Ci1 JI07 am gg 12 g II ID C21 c J GZJ R46 R4...

Page 151: ... 1 2W MLC4 430651 IC MACON TML R49 34 1596 RESISTOR 12IK 1 8w MLC4 43 671 11C I1 1C0 4 IT LI R 5 324 982 RESISTOR lee 1 8w R 51 SAH AS Rl MLC7 430601 i MAPL TML MLC7 430641 IC H PL PIL R 52 SAHE AS R44 HLLJ2 339109 IC DUAL J rF 53 326611 RESISTOR lse 1 4W MLEI 339380 IC QUAD NOR MLEJ 3394 1 7 IC HEX BUrTER ML 6 404350 IC HEX 9urF ER I1LE 7 SAME AS I ILE6 C 19 SAME AS C J MLE8 SA E A5 MLE6 CR20 5M ...

Page 152: ...AS LAI K YSfiITCH LOGIC TKL 2KP SAI E AS MLAI DIODE ZENER IN4730A OIOCE IN4148 CAPACITOR 33 pf CAPACITOR 0 1 MFD CAPACITOR 6 8 FD CAPACITOR 1 0 1FD I 1 I ReF ESIG 15 18 R19 R20 22 123 24 26 R27 R23 29 R30 RI7 R31 32 R33 R34 35 I V 8 10 340778 ISP 1 Pt F T Cc T f Q PCC Y 315948 1 315971 315953 2 333417 1 328783 2 330640 1 315954 2 315952 2 H J K 0 0 0 340873 340874 340875 IN 1M 1 1 Mla4 I c P www w...

Page 153: ...MANUAL 391 6 22 7 KSR OPERATOR CONSOLE Cant A 410080 Circuit Card Cant 346235 INDICATOR HOUSING 340704 HOUSING 346302 340770 SPACEBAR GUIDES G1 346301 THROUGH 346304 346293 346293 SPACERS ...

Page 154: ...A 410080 Circuit Card Cont 181241 I 151152 11 3640 i 346426 MANUAL 391 6 23 151152 125011 3640 c I I I 340730 6 0 181241 ...

Page 155: ...Iel 181240 346397 346409 346707 I I 346386 REF CIRCUIT CARD ASSEMBLY I 181240 346397 MFD UNDER ONE OR MORE OF U S PATS 671 822 9 1 610 886 543 OTHER PATENTS PENDING PATENTED CANADA 1974 WARNING rAINS MOS WHICH 346709 C IN BE JA 9v TArl ELECTRICITY SERVICE Dr E BE GROJNDED 346410 ...

Page 156: ...I I MANUAL 391 6 25 REF SPACE BAR SPACE BAR GUIDE 340770 2 RETURN KEYTOP 346234 jj L J ____ 340764 REF HOUSING HOUSING I II II II I ...

Page 157: ...ee Note 5 340855 ACK F 346161 LOCAL TALK See Note 4 340856 BEL G 346162 DATA See Note 2 340858 RS J 346163 ALARM See Notes 1 and 2 340859 VT K 346164 ON UP PARI OFF UN 340860 FF L 346165 HALF UP DUPLEX FULL DN 340861 346166 30 UP CPS 10 DN 340862 I 346169 PRINTER TEST 340867 SHIFT 346403 RETURN See Note 3 340869 CAN X 340870 ETX C Note 1 346409 spacer must be installed under the 346163 keytop to b...

Page 158: ...8 A RO OPERATOR CONSOLE 410741 Circuit C d ar Assembly 151152 181241 346701 181241____ l 181241 I I I 181241 181241 181241 __ I 1 I 346707 430293 MANUAL 391 6 27 1 _____181241 I 181241 ...

Page 159: ...CH NO TYPES COLOR QTY 340779 DC CONTACT PINK 2 1LA2 474JOO 2 GUAG 2 INPUT GATE A3 5 IE AS MlA2 346359 INDICATOR ORANGE 3 A4 315990 1 DECADE COUNTER 7490 ML81 474193 3 4 BIT uP OOI lN CTR 346432 DC CONTACT BLACK CUT OFF 1 L92 SAME AS l B1 M 63 SAM AS 92 MLB4 430506 1 ROM 256 X 4 SPBS 341804 1 S ITCH 4 POS D430619 341803 C1 C8 405324 8 CAPACITOR 0 1 MFD C9 ClO 336948 2 CAPACITOR 1 0 MFO r n rr R1 30...

Page 160: ...B lscellaneous Parts Keytops and M 346127 346169 346834 REF CIRCUIT CARD ASSEMBLY MANUAL 391 6 29 346397 ...

Page 161: ...ENCLOSURES AND PAPER HANDLING Sprocket Feed ROCOVER 0184058 tf I I 0430149 i Part of 430238 Cabinet 430318 replaces 430201 and 430202 which must be used together 430210 7 f l I I I I k 184055 I I I o 430177 430181 430318 ...

Page 162: ...Friction Feed 0184058 tf I CD Part of 430299 C abmet MANUAL 391 6 31 ...

Page 163: ...LING Cont 430295 Paper Supply Friction Feed REF CD 400226 430278 430270 430204 430296 _ _ ij 1l9649 I I 154202 _ o Two required L 1 430279 7825 4 I I I 430274 3608 1 4302940 1 I U I 159643 it J I 154202 125802 154202 I 125266 f G1 430273 186503 ...

Page 164: ...ex 30 31 125011 Washer Flat 23 184067 Screw w Lockwasher 4 40 x 125015 Washer Flat 15 5 16 Hex 13 125181 Screw 2 56 x 3 8 Fil13 185676 Terminal Plug Type 4 125266 Spring Compression 32 185677 Terminal Receptacle Type 4 125802 Washer Flat 32 185834 Plate Fuse 30 31 130683 Lockwasher 10 185890 Pushnut 9 137440 Resistor 1 000 Ohm 20 186503 Magnet 32 137602 Resistor 470 Ohm 28 186731 Ring Compression ...

Page 165: ...6 346169 Keytop 21 26 29 346234 Cap 25 346235 Housing 22 346238 Capacitor 33 PFD 20 21 346293 Spacer 22 346301 Spacer 22 346302 Spacer 22 346303 Spacer 22 346304 Spacer 22 346359 Keyswitch 21 28 346385 Cover 24 346386 Support 24 346394 Diode 20 21 346395 Cable Assembly 21 28 346397 Bushing 24 29 31 346398 Frame wlPost Left 23 27 346399 Frame wlPost Right 23 27 346403 Keytop 21 26 346409 Spacer 24 ...

Page 166: ... 13 430152 Stud Rear Mount 14 430258 Shaft 15 16 430153 Clip 14 430259 Stud 16 430154 Motor w Cable 11 12 430260 Tray Paper 16 430155 Connector 8Pt 11 12 430261 Bail 15 430162 Connector 6Pt 10 13 430262 Plate w Post 15 430163 Cable Assembly 13 430264 Lever 8 430166 Bracket Bell 11 430265 Roller 15 430167 Bracket Bell 11 430266 Shaft 15 430169 Strip Insulator 5 14 430267 Bracket Left 13 430171 Plat...

Page 167: ... Left 18 430810 Plate wlPost Right 18 430811 Insulator 18 430812 Magnet 18 430813 Guide Wire 18 430814 Armature 18 430816 Armature 18 430817 Plate Right Pole 18 430819 Cam Adjusting 18 430820 Spring Detent 8 430821 Coil 18 430 22 Sleeve 18 430825 Guide Ribbon 18 430826 Washer Mounting 18 Part Number Description and Page Number 430827 Clamp Mounting 18 430828 Lubricator 18 430829 Cover 18 430830 In...

Page 168: ...otection against damage or contamination and facilitates storage stock selection and handling 1 03 The PK packing materials may be obtained from Teletype Corporation The 18003PK foam folder for the logic card and the 28271PK carton with inserts for the print head may also be obtained from REPUBLIC PACKAGING CORP 9160 S Green Street Chicago Illinois 60620 1 04 Identify the contents on the outside o...

Page 169: ...ER l SUPPLY NYLON TAPE 5 LOGIC CARD PACKING TP410740 LOGIC CARD Plastic bag deleted for clarity see Note 4 PRINT HEAD PACKING 6 TP430850 PRINT HEAD 28271PK Note Insert Logic Card into 74340 RM anti static plastic bag before placing in packing carton 18003PK ...

Page 170: ...nting screws into 21307PK bag and tape bag to operator console Insert KSR operator console into RM160028 anti static plastic bag before installing end plates o END PLATES 9065PK t 28153PK Typical 8 Places j ISOLATOR 43K101 CAA AND CAB Operator Console 43K001 AAA RO Operator Console ...

Page 171: ...TELETYPE CORPORATION 5555 Touhy Avenue Skokie illinois 60076 Telephone 312 982 2000 REPAIR MANUAL 391 Issue 1 April 1978 ...

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