Intertec Data Systems SuperTerm Maintenance Manual Download

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Summary of Contents for SuperTerm

Page 1: ...ion 2 2 3 Paper Loading SECTION 3 ln1erla ng Pau 5 u rat Information 3 2 Interface Specification 3 2 1 RS 232C Sell 202C Interface 3 2 3 Parallel tnferfm e SECTION 4 Internal Opetatfott Page5 4 1 Gene...

Page 2: ...4 Keyboard Inspection f 5 4 2 5 Print Quality Inspection 5 4 2 6 Print Quallty Ad ustment 5 4 2 6 1 through 5 4 2 6 9 Detailed adjustment procedure 5 4 3 Level 2 Module R Proci rcfures 5 4 3 1 Removin...

Page 3: ...128 Cl1aracter ASCl Set 7 x 7 Dot Matrix Impact f ri nting Cartri ge Ri_ QPQA _ Adjustable Head for P rinting Up to 8 Copies Upper and Lower Case ASCII Charaeters ll I Page 1 Adjustable Forms Tractor...

Page 4: ...ng that is a multiple of of i 1P 2 54mm r _r An Absolute Tab feature is also avail able allowing a specific line and or colurt ln to be addressed OPT C 4 r MINIMUM MOVEMENT _ i r c _ Vertical Paper Fe...

Page 5: ...cable is specified at time of order the machine will be shfpped with the cable installeq If the cable is pur chasedrse parately or i tJSer supplied it must be connSF t to the u ler Ter by removing th...

Page 6: ...f ribbo clip has been sprung outward pinch cartridg clips inward f J ii Thread the ribbon around the print head and place the ribbon cartridge in the cartridge Jlolder gently pressing downward until I...

Page 7: ...6 Secondary Rec d Line Signal eetector 3L CD 108 2 9 Data Terminal Ready 0 8 A There is a discrepancy between RS 232C and Standard assignments on a Bell System 202 modem I e 202 name 202Pln RS232name...

Page 8: ...es pass transistor 01 and a 5 V regulator Z1 outputs 5 yoe 250 mv at T4 01 is used to carry the outpu l qad cu lt white Z1 monitors the output voltage at terminal T4 L1 controls the base bias current...

Page 9: ...ts of two 2 identical constant current bipolar amplifiers with negativ_ feedb ck closed loop cor itrol The Paper Feed motor ts a 2 stepper motor with each phase being driver by one of the two constant...

Page 10: ...this occurs the output drivers Q10 and Q12 or Q11 and Q13 are cut off and lmotor begins to decrease The 91 feedback loop senses this at R34 and causes ZIU o saturate again Knowing that Z8 is running...

Page 11: ...phases are identical all information in this section applies to both circuits The purpose of the CLAMP and CLAMP inputs will be discussed in Section 4 3 5 FIGURE4 8 Paper Feed Stepper Motor FIGURE4 9...

Page 12: ...13 or the schematics in section 7 6 4 The D A converter receives an octal coded command from the Digital Card and converts the octal code into an analog voltage level The output of the DI A conver ter...

Page 13: ...er the pulse frequency and the higher the VELOCITY FEED BACK voltage The polarity of the VELOCITY FEED B K is determined by the direction of servo rotation 1 s reverses the phase relationship of the E...

Page 14: ...When the voltage on Z11 pin 2 drops below that on pin 3 the output of Z11 switches low pulling all of the charge from C20 This causes Q18 to cut off and start the chain reaction to saturate Q21 and 0...

Page 15: ...Z signals for timing of the Servo Head Control circuitry and Serial Interface circuitry The 8228 System Controller Z35 interfaces with the 8224 and the 8080 to produce system control signals on the Co...

Page 16: ...s on this bus The 8255 s are individually enabled by CHIP 1 CHIP 2 or CHIP 3 signals from the 1 0 CHIP DECODER Section 4 4 4 Read or Write mode is selected by the f70 R and the 1 0 W lines of the Cont...

Page 17: ...oop control of the carriage Servo Drive This enables the CPU to open the VELOCITY FEEDBACK path to obtain t ie full speed of the carriage servo This feature is used qn such operations as a carriage re...

Page 18: ...ERRUPT REQUEST The timer and the flip flop are both cleared by the CLEAR 25ms output of the 110 STROBE GENERATOR Note that the three external option interrupt request lines are input on connector K3 a...

Page 19: ...mounting of all electronic modules on the Printer Assembly Should repair or replacemf nt of a printer component become necessary it may be accomplished easily Figures 4 24 through 4 27 show exploded...

Page 20: ...y impact printing per pass across the page The SuperTerm Print Head used a technique called the anvil concept The technique is so named because the head solenoids do not directly drive the print wires...

Page 21: ...r Board This cable is considered to be part of the Converter Card and is not assigned a separate part number and is not available separately It carries the following signals II 0 0 0 0 I cu I cu C c C...

Page 22: ...lded or twisted pair cable is recommend ed due to noise considerations 4 9 8 Current Loop Interface Cable NOT YET AVAILABLE This material will be disseminated in the form of a Technical Bulletin For y...

Page 23: ...e addition of on site replacement of modules sub as semblies and printed circuit boards PCB s as well as minor adjustments to the Printer Assembly Level 3 procedures are those performed by either Ser...

Page 24: ...free cloth with solvent 1190420 00 and wipe the carriage rails and platen face clean All old lubricants and dirt depo sits should be removed as well as any ink deposits on the platen DANGER Solvent 1...

Page 25: ...checked for security Insure that the belt is tracking properly in the pulleys Improper tracking will cause premature belt wear 5 4 2 2 Paper Feed Drive Inspection Thoroughly inspect the paper feed dri...

Page 26: ...djustment procedures On the print out print wires are numbered 1 through 7 from top to bottom See Figure 5 3 5 4 2 6 1 Remove the print head from the carriage assembly by removing the two black button...

Page 27: ...l positions on the new card 5 4 3 5 Converter Card For Converter Card removal the printer assembly should be sitting up on its rear side with interface cables disconnected Removal Procedure 1 Use l C...

Page 28: ...wo 2 springs before removing shaft 4 The belt may now be removed from the machine 5 Reverse for reassembly Loosening the carriage servo motor will aid in reassembly 5 5 2 6 Paper Feed Drive Belt 1 Loo...

Page 29: ...d and reverse 1 2 line feed pagination variable vertical pitch auto IBM ATS tab setting routine Requires Option Package A 6 4 3 Option Package C 1176250 Includes Reverse printing absolute horizontal t...

Page 30: ...cter Power on 1176830 The reprogram of escape character feature is primarily useful when the host system utilizes escape characters for purposes other than for controlling the terminal s particular co...

Page 31: ...19 DIODE PAC 1489 7400 7404 REGULATOA CARD 7408 7473 LM 320T 79XX Types 7474 LM 340T 78XX Types 74148 2955 74154 74161 74174 74190 74367 74393 74C86 74LS14 74LS138 74LS221 3K Resistor PAC PULL UP 10 K...

Page 32: ...ND cs CHIP SELECT CLK TIL CLOCK INPUT RESET RESET TxC TRANSMITTER CLOCK TxD TRANSMITTER DATA RxC RECEIVER CLOCK RxD RECEIVER DATA RxRDY RECEIVER READY TxRDY TRANSMITTER READY DSR DATA SET READY PA3 PA...

Page 33: ...l Ql 84 A4 Q Bl Al Q3 DZ CLIZ PR2 r o QI CLRI DI CLMI PR QI Qt GND c yi ilJJ QI g IO GND CLEAR _ QI DI D2 QI D3 Q3 GND 74174 Page33 DATA B QB QA Ell G OWN UP QC QD GNO Al CLR l QA I QB I QC I QO I GND...

Page 34: ...CB Assembly 1131000 01 REV 01 7 4 4 Analog Power Board 2510 LM 34DT c z z C 7 4 1 Component Location Diagram 7 ft 2 Power Buses Voltage Monitor Paper feed Drive 7 4 4 3 Print Wire Solenoid Drive 7 4 4...

Page 35: ...P PAPER ADVANCE 29 CODE DATA 6 30 DATA 4 31 nATA 32 33 DATA 0 LOGIC GROUND LOGIC GROUND I 21 2 lOGIC GROUND PFO 3 He AO 1 HEAD 2 7 HEA 0 3 10 ncAO 4 KB 12 9 K7 HEAD 5 10 I HEAD 6 HEAD 1 II 3 HEAD B 13...

Page 36: ...E 1 Standard 60Hz Configuration 2 Some early SuperTerms tllized a dual primary transformer for 60Hz operation These can be configured similar to the 50Hz dual primary transformer 3 Numbers shown corre...

Page 37: ...__c7 4 _ T I 1zvoc D 0 Zlvoe f voe 14 i av Rftu _ svoc 03 r lOGIC GilOUNO 24 0C lo cl1 voe OS 24 V RffiJRN I 2 4 Y J 5 FJ J __ l TlD zc voe C1 r t 4 4 T I IZ DC 0 VW 5 O avoe 4av liEH t Page37 4 4 l C...

Page 38: ..._2 ous l 1 ______ _ av BUS _ _I P 0__ _ e i c_ r of f f v P to d 4 uJ do ov 1 f sra 6Ji cu Flipe S CJ 1r u1 flhVt 8 1 t I 0 l 0 1 J tl ei o f fJ 1 Rt4 c tM j o i w3 s fr l 7 nt3 R20 R17 K8 ft IN Rt6 n...

Page 39: ...18 0 24VOC 12 RETURN 24 V RET IRN Tl 12voc 24V W5 ml OW TIO Z4VOC 48V wz RED TS tqvoc qRET WI WHITE T7 18 V RETURN Page37 f 7 4 4 Analog Power Board 7 4 4 l Component Location Diagram DODOO l3 g 0 0...

Page 40: ...24v BUS 48v BUS s 12v 0 J _ b VOLTAGE MONITOR Sv 0 C7 tJ 24 1 ftEUll JI a A CLAMP O D C9 0 24v D av CLAMP pt IQ 48v RETURN LOGIC GROUND t AB r S e 1 24v Sv 12v I J wif 200 1 KS R22 R20 0 PAPER FEED D...

Page 41: ...T1 QS r OlO I I I i r 1 t t l l1ot I I F5 ii ____ i i li a 06 jr _ _ t PR 1 NT_ _w_ R_E_ _ ____ J ll I 1 1_ F6 r 0 15 l3 1ll 1 ll 1 r 07 t0_0_1_4 t l P nl_N_T _w_11_ E_ _ _ ____ J 1 i i I F1 017 PRi1...

Page 42: ...t A NO 10 COU fT ERACT TH S EFFECT A 1Al J RES SlCri MAY EE AD ED TO THE DAC A 0 LIFIER SUt lllNG NODE AT 1HE POINT LABELE D RT THE FREE END OF THIS TRI RESISTOR IS COW ECTED TO HTHER 1 OR 12v THE SUP...

Page 43: ...l J iT i g 10 8 n 1 1H il l J 8 L 1 ONO_ I 1 PRT SWt Off Cl OSEP ON OPEN 1 1 1 _ Q6 DIP _ l t l l l 1at c f6 t ll ll l 1ii s D 11 012 l RINT WIRll oa t il if lf 112 _ i 0 t 1 l t 111 1 l Ql 1 r D 4 fl...

Page 44: ...il ill 111 E i i i151 1 H i 1 Zz Ii ii i t tl II Sfi 111 fat 5 ir ij il s i lil iii r YELOCltY FEEDBACK lCD ri I 1 ___ 1 _ 1 DYNAMIC FIE 0D CIC 1 OPT L II SHAFM HCOOEA I J I r G4 VV lo oe Jo Q J l RN...

Page 45: ...TIVE FEEDBACK LOOP HEA0 1 ENABLE l CLAMP SW1 OFF CLOSED ON OPEN F5 013 012 06 F hots 11 PRINT WIRE 116 12 13 PRINT WIRE 17 07 r D14 1 1 l14 F7 15 16 ji Dl7 08 1018 PAIN f WIRE l ij 18 c FB _ ji 022 io...

Page 46: ...GND K1 z z 29 30 J TACHOMETER CIRCUIT jJ C30 DYNAMIC FEEDBACK 12V OPTICAL SHAFT ENCODER 1 12V RETURN 12 5v LOGIC GROUND t1 C c C6 tT g J c C6 r l...

Page 47: ...8 16 8 4 12 4 12 4 12 I IZ43 ROM I IZ44 ROM I IZ45 ROM 1 IZ50 I IZ51 I IZ52 10K PULL UP ROM RESISTOR PAC ROM 14 IA 6 18 6 7 14 7 10 9 10 11 Z57 1489 L II258 2102 11259 2102 I IZ6 7474 14 7 I IZ7 7400...

Page 48: ...lO Vee Vbb t J V J v _ 1 Ct rJ v 2 37 GNC o 10 l4Sl17 t ltll I 4 S I 1 1 I 15 14 n a r t 14 7 4 5 3 Microprocessor System BAl 9Al4 llA J Bo 17 8Al1 llAI BA 11 U BAJ B llo O 087 086 011 084 DA Diii 8 j...

Page 49: ...I CAR DEf V i t faft rn SE n CIR IO SfHO f I llUPY AEC P k _ I 12 LI 11111 G _ 12 tO IN1lt Rl Q CJll R D T r RCSH Tie pr m RiC C K Ci 1111 K4 c 6 1 1L n Y BL IO a n I T I GM OAU fEAM ROY BAJA D DAU I...

Page 50: ...a z a t j g 0 s c cc g t 4 ii 0 ou c a i 0 t D c c 0 0 _ T a 3 _ c 0 0 Q _ a 11 1 a C _ _ a Ill cg 0 IC IO N llC 5ms INTR REC F F Page44 7 4 5 5 Interval Timers Interrupts Servo Control INTERTEC DA1A...

Page 51: ...l _ i I 1 ii l L 1i I c Z e H f _ f n 7 4 6 4 System 110 I it c ru r SllAL t AIA INllllfM E l _ _ 1 1 llJ IC i c lit l l ei m 1 111 illil _ 1 111 i Do l 1 l liW 11 JW 1111 1 t ll r c i 1 1 l 11 o 1 m...

Page 52: ...00 11 C DIST 10 llCllDIS r i r I I I I u I 1111 i u II g Ill 1 i II Ill II II o i Page44 7 4 5 5 Interval Timers Interrupts Servo Control IOll llTICDATA lm 7 4 6 2 PCB Assembly 1134000 01 U lllST 111...

Page 53: ...bbon Motor Drive Sub Assembly l 2 01 09 01 Motor l 2 01 09 02 Spring Tension l 2 01 09 03 Clamp L 2 01 09 04 Coupling l 2 01 09 05 Screw 2 2 01 10 Clip Drive Belt To Carriage l 2 01 11 Screw Drive Bel...

Page 54: ...5 Pico Fuses l SA 7 1130020 00 7 26 Pico Fuses 5 0A l 1130030 00 7 27 Resistor Wire Wound 5 3W 1 7 1130040 00 7 28 Resistor Wire Wound 1 2W 1 2 1130050 00 UNIT PRICE 550 00 55 00 28 60 28 70 19 85 19...

Page 55: ...u8 I F102 I viii I 6 L6_J 6 _ _ i 1 Ll 24 _ 2 66_ l sel I E JJ I 39 I 7 55 I v11 I w 81 I G 103 I wll9 o 1 I 1 27 1 47 67 1 107 I 121 I 147 t 167 _JI i _ L t r 12 I ss8 I I v o I 856 I A12 88 I HI04 x...

Page 56: ...to space to the right and thereby allows the operator to view the last character entered Note that the head will automatically reposition itself to its original position when the LCV switch is again d...

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