2 Card Read PunchModels 5, 6, and 7MField EngineeringoMaintenance Manual cr.

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(1)cr . M o F Maintenance Manual i e l d E n Restricted Distribution g i only and may not be used This manual is intended for internal use by other than IBM personnel without IBM's n written permission e Specifications contained herein are subject to change without notice. Revisions and/or supplementseto this publication will be issued periodically. r i n g. 2. Card Read Punch Models 5, 6, and 7.

(2) A") PREFACE. oAt) This manual prov ides the s erv ic e and maintenance inf ormat ion f or the I B M 1442 Card Read Punch, Models 5, 6, and 7. Adjus t ment and remov al proc edures f or abovebase mec hanic al units of the s erial reader punch are explained in the I B M Field Engineering Maintenance Manual, Serial Reader Punch, F o r m 231-0026.. (00;P). 0") 4"3). RESTRICTED DIS TRIB UTION: Th i s publ i c ati on is i ntended fo r use by IB M personnel only and may not be made av ai l abl e to others wi thout the approv al o f l oc al IBM management.. This edi ti on, Fo rm Y 31-0098-1, obsoletes the previous edi ti on Fo rm 231-0098-0. Logic referenc es and adj us tment procedures hav e been updated. Tec hni c al changes are i ndi c ated by a l i ne a t the l e f t of the tex t; al tered figures are i ndi c ated by a bul l et (o) ahead o f the fi gure c apti on.. A for m is included at the back of this manual for readers' comments. I f this form has been removed, address comments to: I B M Corporation, Pr oduct Publications, Dept. 245, Rochester, M i nn. 55901.. C I nt er nat i onal Business Machines Corporation 1965 Wik4).

(3) CONTENTS. 1-1 1-1. CHAPTER I . D I A GN OS TI C AIDS Section 1. Di a g n o s t i c Techniques General Procedures Card Ex ami nati on Operator Console E rror Indications 1 Section 2. S e rv i c e A i d Index. Section 3. S e rv i c e Aids. -. CHAPTER II. M A I NTE NA NCE FEATURES Diagnos tic Programs CE S wi tc h Lamp Tes t I D a t a Pulse S wi tc h CHAPTER ILL P RE V E NTIV E MA INTE NA NCE PROCEDURES Approac h to Scheduled Maintenanc e CHAPTER IV . CHE CK S A ND ADJUSTMENTS Mec hani c al Adjustments and Removals Card Feed Cl utc h Response Service Chec k Obj ec ti v e Procedure Read Cl utc h Response Service Chec k , Model s 6 and 7 Obj ec ti v e Procedure Read Data Pulse Service Chec k , Model s 6 and 7 Obj ec ti v e Procedure Read E m i tter Ti m i n g and Durati on Models 6 and 7 Service Chec k. 1-1 1-1. Adj us tment Objec tiv es Adj us tment Procedure Card Feed E mi tter Servica Chec k. 1-1. Adj us tment Objec tiv es. 1-5. Adj us tment Procedure Punch E mi tter. 2-1 2-1. Adj us tment Objectives Adj us tment Procedure Inc remental Dri v e E mi tter. 4 4 4. -. 4 4 5. Adj us tment Objectives Adj us tment Procedure Punch Hol d Coi l Vol tage. 4 4 4. -. 5 5 6. 4 4. -. 6 6. 3. 2-1 2-1 2-1. 4 -2 4-2. 2 2. -. 3 3. 4. -. 4. 4. -. 4. 4. -. 4. Li ght Source Lamp Vol tage, Model s 6 and 7 Adj us tment Objec tiv e. 4 Adj us tment Procedure 4 Li ght Source Lamp Vol tage , M o d e l 5. 4-1 4-1. 4-1 4-1 4-1 4-2. -. 4 4. Adj us tment Obj ec ti v e Adj us tment Procedure. 3-1 3-1. 4-1 4-1 4-1. 4 4. I. Adj us tment Obj ec ti v e Adj us tment4 Procedure. 4 4. -. CHAPTER V . P OW E R SUPPLIES 1442 Model 5 5 DC P ower Supply Use M e te r Trans former Power Supply Use M e te r Trans former CHAPTER V I. L OC A TI ON S. 6. -8. 8 8. 5. -. 6. 1 1. 5. 5. 1 -. 5. 6. -. -. 5. 4. 1 1. -. 1 6-1. 4-2 4-2. Index. X1.

(4) 8%) S A FE TY. PERSONAL SAFETY Ens ure y our own safety by using c aut ion at all t imes , and by being aware of pot ent ially dangerous areas of the mac hine. R e a d and f ollow the safety suggestions in Fo r m 229-1264, a pocket-sized c ard issued to all I BM Cus t omer Engineers . Remember: • L o o s e c lot hing can become entangled in mov ing part s of the mac hine. • D r i v e belt s , bec aus e of t heir int ernal cable c ons t ruc t ion, c an cause s erious injury . D O NOT c rank a mac hine by pulling on the driv e belt s . • H e a t sinks are at an elec t ric al pot ent ial. D O NOT s hort heat s ink s t o each ot her or to the mac hine s ide f rame. • A l w a y s unplug mac hine power and wait ONE FUL L MI NUTE bef ore at t empt ing repairs or adjustments i n the power s upply area. • V o l t a g e s developed in the res onant c irc uit of regulat ing power supplies are apt to be muc h great er t han line voltages. • F o l l o w the s pec ifi c safety prec aut ions that accompany many of the adjus t ment proc edures in this manual. EQUI PMENT SAFETY Elec t ric al Alway s replac e blown fuses wit h fuses of the s ame type and rat ing. U s i n g fuses of a dif f erent type o r higher rat ing c ould res ult in component damage in case of s hort ing or ov erloads . Remov e power f r o m the mac hine bef ore replac ing SLT cards. F a i l u r e to do t his c ould res ult in damage to the c ard being replac ed or ot her c ards i n the net. Mec hanic al Do not operat e the SRP mec hanis m under power wit h unit s dis as s embled, remov ed, o r maladjus t ed. K e e p tools, etc. c l e a r of the SRP when operat ing under power.. toR ,AIR) 1 Arts ARR).

(5) CHAPTER I. DI A G NO S TI C AI DS. SECTI ON 1. DI AGNOSTI C TECHNI QUES General Proc edures A c us t omer normally learns of 1442 f ailures f r o m the us ing system, f r o m indic at or light s on the operat or panel, o r f r o m ex aminat ion of the punched cards. The Cus t omer Engineer is normally c alled af t er the c us t omer has v erifi ed the f ailure. A t t his t ime, i t is we l l f or the CE to gat her as muc h inf ormat ion as pos s ible, s uc h as: • W h i c h e r r o r indic ations did the c us t omer r e ceive f r o m the using s y s t em? • W h i c h 1442 indic at or light s c ame on? • C a n the f ailure be duplic at ed? • D o e s the f ailure tend to s t ay wit h one c ard c olumn; wit h a part ic ular punch or group of punches? •. r w. D o the f ailures f o r m a pat t ern?. I f the c us t omer can releas e the system, t he diagnostic programs prov ided can be used to f urt her is olat e the f ailure. Af t er a f ailure has been diagnosed and repaired, the diagnos t ic programs should be r u n f or a fi nal check of 1442 operat ion. Card Ex aminat ion. I ndic at or Lamps Power On indicates that both AC and DC power are applied to t he 1442. I f the light is off, a power f ailure is indicated. Ready, n o r ma l l y light ed by the us ing s y s t em's proc es s ing unit to indic at e that the 1442 has c ards in the feed and is ready to process t hem. I f the indic at or is off, i t implies one o r mo r e of the f ollowing conditions: • P o w e r off. • C a r d not regis t ered at read or punch s t at ion (no c ard required at punch s t at ion on c y c le immediat ely f ollowing r u n - i n cycles). • H o p p e r empt y . • S t a c k e r f ull. • C o v e r int erloc k open. • C h i p box f ull or not in place. • A t t e n t i o n or check light on. Chip Box (1442-6 & 7 only ) indic at es that the c hip box is f ull or not in place. At t ent ion (1442-5 only) indic at es one o r bot h of the f ollowing conditions: • C h i p box f ull or not in place.. Clos e ex aminat ion of cards fed t hrough the 1442 i s an import ant step in the diagnostic proc edure. I n many instances, a f ailure that t urns on an indic at or res ult s f r o m s omet hing int erf ering wit h the normal mov ement of c ards t hrough the feed. S u c h int erf erenc e of t en appears as a mark or nic k on the c ard. Reading f ailures can be caused by of f -punc hed c a r d . I t is well to ex amine (if possible) the c ards that were being used at the t ime of the f ailure.. r o w. • S t a c k e r f ull. When the at t ent ion light is on, t he ready light is off. Check t u r n e d on by the proc es s ing unit, indic at es an e r r o r condition. T h e e r r o r is f urt her ident ifi ed by one of the light s on the bac k -light ed panel.. Operat or Cons ole E r r o r Indications (Reference Figure 1-1) A l l indic at ors on the 1442 operat or console, ex c ept the power on and chip box indic at ors , a r e direc t ly c ont rolled by the proc es s ing unit of the us ing system.. Bac k -Light ed Panel I ndic at ors Hopper indic at es that a c ard did not feed f r o m the hopper during a feed cycle. 1 1.

(6) Sense Sta (1442-5) or Read Sta (1442-6 & 7) indic at es a j a m in the read station, o r a malf unc t ion in the reading c irc uit s . Punch Sta indic at es a jam at the punch station.. Read Reg (1442-6 & 7 only ) indic at es that two c onsecutive s amplings of data f r o m a c ard c olumn were unequal.. P u n c. h indicates that the punch echo data did not mat c h the dat a to be punched.. Trans indic at es a jam in the s t ac k er t rans port area. Ov errun (1442-6 & 7 only ) indic at es that a data handling sequence e r r o r was detected by the proc es s ing unit.. Feed Clu indic at es that an unrequested feed cycle oc c urred.. HOPPER F E E D P U N C H CLU. POWER ON. READY. BLANK. CHECK. ATTENTION. BLANK. START. NPRO. STOP. SENSE STA PUNCH STA TRANS. 1442 Model 5 Operator Panel. HOPR. FEED CLU. READ REG. READ STA. PUNCH. PUNCH STA. OVER RUN. POWER ON. READY. BLANK. CHECK. CHIP BOX. BLANK. START. NPRO. STOP. TRANS. 1442 Models 6 & 7 Operator Panel Figure 1 -1 . Op e ra t o r Panels. 4eN) 1-2. Alk) A").

(7) SECTI ON 2. S E RV I CE AI D I NDEX I ns ert s erv ic e aid index behind this page..

(8) AR,. A! " 1- 4. fr4111 1.

(9) SECTI ON 3. S E RV I CE AIDS I ns ert s erv ic e aids behind this page.. r t ,.

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(11) CHAPTER H. MA I NTE NA NCE FEATURES. DI AGNOSTI C PROGRAMS. L A MP TEST. Diagnos t ic programs are prov ided f or online t es t ing of the 1442-5, 6, and 7. Th e s e rout ines are part of the diagnos t ic program package f o r the proc es s ing unit to whic h the 1442 is attached. Det ailed inf ormat ion about these diagnos t ic programs is inc luded in the maintenance and/ or prog r a mmi n g manuals supplied wit h the proc es s ing unit.. A lamp test line i n the 1442 indic at or lamp c irc uit s gives the c us t omer and the CE a quic k met hod of detecting burned out indic at or lamps . W h e n t his line is activated f rom the proc es s ing unit , a l l lamps on the 1442 are activated.. CE SWI TCH. This rot ary s wit c h connects v arious s ignal lines t o an adjacent hub. T h i s allows the s elec ted line t o be more readily observed on a scope. T h e lines that can be s elec t ed are: 1. E a c h of the 12 read data pulses. 2. R e a d emit t er. 3. P u n c h card lev er. 4. F e e d CB 1. 5. F e e d CB 2. 6. P u n c h CB 1.. The CE toggle s wit c h, on the 1442 power supply panel, c ont rols AC power to the driv e mot or and power supplies. W h e n the s wit c h is s et at CE MODE, these of fl ine maint enanc e proc edures can be perf ormed: 1. A l l s t at ic SRP mec hanic al adjustments. 2. Re p l a c e me n t of all mec hanic al part s , ex c ept light s and switches. CAUTI ON: Replac ement of light and key receptacles requires remov al of system power f rom the 1442.. DA TA PULSE SWI TCH. A second hub prov ides Feed CB 1 as a sync point ..

(12) •••••••L,:;•,.

(13) CHAPTER III. P RE V E NTI V E MA I NTE NA NCE PROCEDURES. APPROACH TO SCHEDULED MAI NTENANCE The purpos e of scheduled maintenance is to improv e mac hine operat ion and reduce the amount of downt ime. De t a i l s of maintenance operat ions are lis t ed in the scheduled maintenance rout ine c hart (Figure 3-1). O n l y the operat ions lis t ed f or a c ert ain period. r-. r -. CODE UNIT U R. FREQ. OPERATION. 8. Clutch. 3. LUBRICATE CARD FEED CLUTCH Grease fi tting - IBM 23 (Grease unti l excess shows) W i pe off excess. LUBRICATE READ CLUTCH Grease fi tti ng - IBM 23 (Grease until excess shows) W i pe off excess.. 7. Feed. 6. LUBRICATE CARD FEED CLUTCH COMPONENTS Clutch sleeve arm - IBM 23 Guides for shock mounted section of clutch latch (old s ty le)- IBM 23 Clutch latch pi v ot bushing (new style) - IBM 6 End of clutch latch - IBM 23 Top of keeper - IBM 23 Input bearing of card feed clutch shaft - IBM 23 LUBRICATE READ CLUTCH COMPONENTS Clutch sleeve arm - IBM 23 Guides for shock mounted section of clutch latch - IBM 23 End of clutch latch - IBM 23 Top o f keeper - IBM 23 LUBRICATE CARD FEED COMPONENTS Card feed output shaft-cams - IBM 23 (Replace wipers i f necessary) Stacker ioggier connecting rods - IBM 6 Pickerknife drive i dl er pulleys - 2 places with IBM 6 Hopper pressure feed rol l hanger bearings - IBM 6 Hopper empty switch lev er bearings- IBM 6 Stacker cornering station bell crank contact surfaces- IB M 23 Anti-backup mechanism - IBM 23 Needle bearing - card feed clutch shaft - IBM 6 Gears - NY LA TRON" and steel - 5 places with IBM 23 NOTE: D o not lubricate read nudge rol l gear trai n. *Trademark of Polymer Corp.,Reading,Pa.. rr-. of t ime s hould be done. Sugges t ed f requenc y is based on 173 hours per mont h usage, o r 250, 000 feed operat ions . Vis ual ins pec t ion should be the fi r s t s t ep of ev ery maintenance operation. Co r r e c t i o n of not ic eable c orros ion, d i r t , wear, binds , burned contacts, and loose part s helps prev ent f ut ure problems .. • F i g u r e 3 -1 . P re v enti v e Mai ntenanc e Routi ne Ch a rt (Part 1 o f 2). OBSERVE. PAGE.

(14) CODE UNIT FREQ U R 1 Feed 6 CLEAN Base Card transport Emitter disk slots. OPERATION. OBSERVE CHECK Read and card feed clutch response Read emitter timing. PAGE. 4-1 4-2. Read head asm mask. Fiber bundle ends Read emitter phototransistors CLEAN Punch magnet hold coil. 4. Punch. 6. 2. Feed. 9. LUBRICATE Pickerknife cam and cam followers - IBM 23 Read nudge pressure roll pivot - IBM 6 Read eject pressure roll pivot - IBM 6 Pickerknife pivots - 2 places with IBM 6. 6. Punch. 9. LUBRICATE Punch Cam - replace wick Restoreasm cam - replace wick Interposer cam - IBM 23 on wick Interposer pivots - 12 places with IBM 6 - avoid dripping. Incremental drive eccentric - replace wicks Gears - 4 places with IBM 24 Punch bail block - IBM 23 Incremental drive ratchet - IBM 24 Incremental drive pawls - 2 places with IBM 6. Light source lamp adjustment CHECK. 4-6. Punch magnet hold coil voltage adjustment. 4-6. 3-3. Restore asm pivots - 24 places wi th IBM 6 (av oid dri ppi ng) Incremental dri v e cam - 2 places wi th IBM 23. Leaf springs (interposers and restore levers) 36 places with IBM 24 Incremental drive latch pivot - 2 places with IBM 6 5. Drive Mech. & Misc. 9. CHECK Cables and wiring for loose terminals and overheated insulation. Belts and pulleys for significant wear or damage.. • F i g u r e 3 -1 . P re v e n ti v e Mai ntenanc e Routi ne Chart (P art 2 o f 2). 3-2. A").

(15) Lubric at ion diagrams (Figures 3-2 and 3-3) ref erenc e the part s of the punch unit and inc rement al driv e t hat require lubric at ion. U s e the P M Chart to det ermine frequency; use the lubric at ion diagram to as s is t in det ermining where t o lubric at e and what lubric ant to use.. Incrementa Drive Paw l #6. Ratchet Wheel 0 2 4. Incremental Drive Eccentrics Replace Wicks (2) Incremental Drive Pawl /to. Figure 3 -3 . I n c re m e n t a l Dri v e Lubri c ati on. Replace Wick. Punch Bail Block Grease Fittings 11 23. Interposer Spring Assembly #24. Rep lace Wick. Restore Lever #24. Grease W ick 11 23 Interposer Pivots 12 Places #6. Restore Lever Spring Assembly #24. Restore Lever Assembly Pivots 24 Places #6. Figure 3 -2 . P u n c h Uni t Lubri c ati on. 3-3.

(16) CODE UNIT FREQ U R 1 Feed 6 CLEAN Base Card transport Emitter disk slots. OPERATION. OBSERVE CHECK Read and card feed clutch response Read emitter timing. PAGE. 4-1 4-2. Read head asm mask. Fiber bundle ends Read emitter phototransistors CLEAN Punch magnet hold coil. 4. Punch. 6. 2. Feed. 9. LUBRICATE Pickerknife cam and cam followers - IBM 23 Read nudge pressure roll pivot - IBM 6 Read eject pressure roll pivot - IBM 6 Pickerknife pivots - 2 places with IBM 6. 6. Punch. 9. LUBRICATE Punch Cam - replace wick Restoreasm cam - replace wick Interposer cam - IBM 23 on wick Interposer pivots - 12 places with IBM 6 - avoid dripping. Incremental drive eccentric - replace wicks Gears - 4 places with IBM 24 Punch bail block - IBM 23 Incremental drive ratchet - IBM 24 Incremental drive pawls - 2 places with IBM 6. Light source lamp adjustment CHECK. 4-6. Punch magnet hold coil voltage adjustment. 4-6. 3-3. Restore asm pivots - 24 places wi th IBM 6 (av oid dri ppi ng) Incremental dri v e cam - 2 places wi th IBM 23. Leaf springs (interposers and restore levers) 36 places with IBM 24 Incremental drive latch pivot - 2 places with IBM 6 5. Drive Mech. & Misc. 9. CHECK Cables and wiring for loose terminals and overheated insulation. Belts and pulleys for significant wear or damage.. • F i g u r e 3 -1 . P re v e n ti v e Mai ntenanc e Routi ne Chart (P art 2 o f 2). 3-2. A").

(17) CHAPTER IV. C H E C K S AND ADJ USTMENTS. ME CHA NI CA L ADJ USTMENTS AND REMOVALS. READ CL UTCH RESPONSE SERVI CE CHE CK , MODELS 6 AND 7. The check, adjus t ment , and remov al proc edures f or mec hanic al units of the Serial Reader Punch (SRP) not prov ided in this section are prov ided in the I B M Field Engineering Maintenance Manual, Serial Reader Punch, Fo r m 231-0026.. Objective Check ov erall clutch operat ion by det ermining the t ime required f or the c lut c h to engage af t er i t is mec hanic ally activated. Proc edure. CARD FE E D CL UTCH RESPONSE SERVI CE CHECK Objective Check clutch operat ion by det ermining the t ime r e quired f or the clutch to engage af t er the c lut c h magnet is energized.. Proc edure 1. S y n c scope: — Feed Clut c h Select (ER 181). 2. O b s e r v e output of Feed CB 1 (ER 101). 3. I n i t i a t e clutch operations by moment arily depressing the NPRO key. 4. F e e d CB 1 line should become ac t iv e at about 17 t o 24 millis ec onds af t er the sync. A c t u a l t ime v aries between machines because of dif f ering machine speeds. Ho we v e r , t he t iming on successive cycles should not v ary more than 2. 0 millis ec onds . 5. F a i l u r e to obt ain the t iming in step 4 may be caused by one o r more of the f ollowing:. 1. S y n c scope on Feed CB 1 line (ER 101). 2. O b s e r v e + Read Emit t er line (ER 131). 3. U s e the NPRO key t o run the mac hine wit hout cards. 4. T h e fi rs t emit t er pulse should go plus at between 7 and 11 millis ec onds af t er the sync. Ac t ual t ime v aries because of dif f ering mac hine speed and emit t er adjus t ment . W i t h the NPRO key held down, t he s t art of the fi r s t emit t er pulse should v ary no mo r e than 500 usec between cycles. 5. F a i l u r e t o obtain the t iming in step 4 may be caused by one or more of the f ollowing: • I n c o r r e c t adjus t ment of c ont rol s leev et o-lat c h a r m clearance. • Co n t a mi n a t i o n . • L a c k of lubric at ion. • W e a k or defective helic al s pring. • B i n d i n g c ont rol sleeve.. • I n c o r r e c t adjustment of c ont rol s leev e-t o-lat c h a r m clearance. • Co n t a mi n a t i o n . r a t . '. • L a c k of lubric at ion. • H e l i c a l s pring inc orrec t ly ins t alled.. NOTE: Def ec t iv e components cannot alway s be v is ually detected. I f adjustment and lubric at ion do not c orrec t response problems , replac e c lut c h s pring. Redesigned clutch components being used on c urrent produc t ion machines help mi n i mi z e response problems . Th e s e redes igned components are i n s t alled on mac hines shipped af t er 10/ 1/ 65 (approx. )..

(18) READ DA TA PULSE SERVI CE CHECK, MODELS 6 AND 7. Adjus t ment Objectives • E m i t t e r pulse caused by fi rs t s lot in emit t er disk should oc c ur during c olumn one read t ime.. Objective Check f or c orrec t operat ion of read station. Proc edure 1. S e t up 1442 t o continuously read a dec k of cards prepunched (all punches) in c olumn 40. This can be done by programming or by plac ing both leads to the hopper s wit c h on one t erminal and us ing the NPRO key. 2. W h i l e running c ards continuously, s c ope i n puts and outputs of phot ot rans is t or amplifi ers (ER 121, 131) and check: a. 1 4 4 2 Model 6 • M i n i m u m amplit ude of any part of any data pulse f r o m phot ot rans is t ors should not be low enough to cause shortened output f rom ampl i fi e r (see Figure 4-9). • D a t a pulses should begin wit hin 100 usec of each ot her. b. 1 4 4 2 Model 7 • M i n i m u m amplit ude of any part of any data puls e f r o m phot ot rans is t ors should not be low enough to cause shortened output f rom a mp l i fi e r (see Figure 4-9). • D a t a pulses should begin wit hin 75 usec of each other. If data pulses do not meet these s pec ifi c at ions , c hec k read s t at ion adjustments (SRP Maintenance Manual) and light source lamp voltage adjus t ment (this chapter). READ E MI TTE R TI MI NG AND DURATI ON MODELS 6 AND 7 Fo r convenience, t wo decks of cards s hould be av ailable: o n e pre punched wit h all punches in c olumn one, t he ot her pre punched wit h all punches in c olumn 40. Th e s e decks mus t be punched in accurate regis t rat ion. Service Check. • E m i t t e r pulse s hould begin 65 usec 1-40 usec bef ore the c ent er of the data pulse f or Model 6; 50 usec ± 40 usec bef ore the c ent er of the data puls e f or Model 7. • I n a c t i v e t ime of emit t er puls e should be 400 usec ± 200 usec f or Model 6; 300 usec ± 150 usec f or Model 7. NOTE: Do u b l e t rac es , o r a wide and a n a r r o w pulse, w i l l be seen when scoping the output of the read phot ot rans is t or amplifi ers . T h e nar r ow pulse is the data pulse; the wide pulse is caused by the space between cards. Adjus t ment Proc edure DANGER: S e t the CE s wit c h at CE MODE o r unplug the driv e mot or c ord before mak ing mec hanical adjus t ment s t o the e mi t t e r disk. T h i s p r e vents the driv e mot or f r o m being ac c ident ally started.. 4-2. Ai) d'#) w k ). Bef ore mak ing this adjus t ment , mak e c ert ain that the t iming (read pus her adjustment) and durat ion of the read pulses are wit hin s pec ifi c at ions , and that the read and c ard feed clutch response t imes are c orrec t ac c ording to the proc edure in Chapt er IV. 1. S e t up mac hine to continuously read a deck of cards prepunched (all punches) i n c olumn 1. Do t his by programming or by plac ing both wires t o the hopper s wit c h on one t e r mi n a l and operat ing the NPRO key. 2. S c o p e the output of the read emit t er amplifi er (Figure 4-1) and check that the of f (inactive) t ime of the puls e is 400 usec ± 200 usec f or Model 6; 300 usec ± 150 usec f or Model 7.. Scope Settings .1ms/division S volts/division Sync: Internal Minus Probe: +Read Emitter Line. Read e mi t t e r f ailures can be caused by an ac c umulat ion of d i r t on the read emit t er disk. T h i s area should be c leaned f requent ly wit h a c lean, d r y brush. Check the operat ion of the read emit t er by f ollowing the adjus t ment proc edure, c hec k ing f or the required conditions, wit hout alt ering adjustments.. Aok) ^T) Atyk). Offi Time 1 of Emitter Pulse. EMEMEll 111111111111111111111111111 ov 1. iiiiuu. H - 3 0 0 P s 1 5 0 P s (1442 Model 7) H-400Ps ± 200Ms (1442 Model 6). Figure 4 -1 . R e a d E mi tter Inac ti v e Durati on. AR) At).

(19) I f t ime is inc orrec t , p e r f o r m the read emit t er mec hanic al adjustments des c ribed in the SRP maintenance manual. I f this does not c orrec t problem, p e r f o r m the l ight source lamp voltage adjustments in t his chapter. 3. S c o p e the output of one of the read photoc ell amplifi ers and mark on the scope face the pos it ion of the c olumn 1 data pulse (Figure 4-2). 4. S c o p e the output of the e mi t t e r amplifi er. Adjus t the pos it ion of the e mi t t e r dis k unt il the fi r s t emit t er pulse is about in the c ent er of the c olumn 1 data pulse (Figure 4-3). 5. R e m o v e deck of cards prepunched in c olumn 1 and replac e wit h deck prepunched in c olumn 40. R u n this deck continuously. 6. M o v e the scope to the proc es s ing unit of the us ing system. U s i n g int ernal sync, s c ope the + Any Lamp Dark line (Logic page XR221 f or 1131; logic page EN761 f or 1801). A d j u s t the t ime base of the scope so that the minus pulse caused by the punc h in c olumn 40 c omplet ely fi lls t he scope face (Figure 4-4). (The narrow minus puls e is caused by c olumn 40; t he wide pulse is caused by the space between c ards . ) 7. W i t h o u t changing the t ime-bas e s et t ing, s y nc the scope ex t ernal minus on the + Any Lamp Dark line and scope the + Read E mi t t er line (logic page )CR301 f or 1131; logic page EN521 f o r 1801. A d j u s t the read emit t er ec c ent ric. (and emit t er dis k if necessary) f o r one of the f ollowing conditions (Figure 4-5): a. 1 4 4 2 - 6 . E m i t t e r pulse s hould begin 65 usec ± 40 usec bef ore the c ent er of the data pulse (c ent er of scope face). b. 1 4 4 2 - 7 . E m i t t e r pulse s hould begin 50 usec ± 40 usec bef ore the c ent er of the data pulse (c ent er of scope face).. CARD FE E D E MI TTE R. DANGER: S e t the CE s wit c h at CE MODE o r unplug the driv e mot or c ord bef ore mak ing mec hanic al adjustments to the emit t er disk. T h i s p r e vents the driv e mot or f r o m being ac c ident ally started. Service Check 1. M a n u a l l y t rip CF c lut c h and c rank mac hine unt il C F index reads 15'. 2. C h e e k that the magnet on index dis k lines up wit h upper emit t er c oil c ore (CB 1). 3. C h e c k f or 0 0 5 " to 0 0 9 " c learanc e bet ween niagnet and c oil core.. Double trace caused by cc between cords.. Scope Settings 2 ms/division Svolts/division Sync: External plus on CS 1 Line Probe: Output of any O v Read Amplifier. % A1. I. 11111111111111111111111111111111 11111111111111111111111 11 • 11 1111. Scope Settings 1nWdivision 5 volts/division Sync: Internal minus Probe: + Any Lamp Dark line (XR221)1131 (EN761)1801. Carbrate time base so negative level extends across face of scope.. Ov. 11111111111 11111111111111111111111111111111111111K 1111111111111111111111111101111111111. Ma k bo h edges of. pul e on scope face.. Figure 4 -4 . S e t t i n g A l l -Cel l s Pulse to Fi l l Scope Fac e. Figure 4 -2 . M a rk i n g Col umn One Data Pulse. Scope Settings 2 ms/division 5 volts/division Sync: External plus on Feed CS 1 Line Probe: + Read Emitter Ov Line. 4 1 '. r -. Pos . ti on e m i t t e r d i s k .. Figure 4 -3 . A d j u s t i n g Fi rs t E mi tter Pulse. 1. 1 4 1 = Marks from F . g u re 4 - 2. 1. Scope Settings Same as figure 4-4. Sync: Edemal minus on +Any'Lamp Dark line Probe: + Read Emitter Line (XR301)1131 O v (EN521)1801. k-65Ps 40P s 1442Model 6) 1.4.5014 40P s (1442 Model?). Figure 4 -5 . F i n a l E mi tter Setting 4 -3.

(20) Adjus t ment Objectives •. Adjus t ment Objectives. C F CB pulses should oc c ur at s pec ifi ed t imes (Figure 4-6).. • C o i l c ore-t o-emit t er dis k c learanc e s hould be 0 0 5 " to 0 0 9 " f or all c oils .. • E m i t t e r pulses should oc c ur at the t imes shown on logic pages TC002 (1442-5 and 7) or TC003 (1442-6). • E m i t t e r pulse durat ion should be between 0. 1 ms and 1. 0 ms.. Adjus t ment Proc edure Adjus t ment Proc edure 1. M a n u a l l y t rip CF clutch and c rank mac hine unt il magnet on CF index lines up wit h upper emit t er c oil c ore (CB 1). 2. L o o s e n emit t er c oil loc k s c rew (Figure 4-6). 3. A d j u s t c oil f or 0 0 5 " to 0 0 9 " c learanc e between c oil c ore and magnet. 4. T i g h t e n emit t er c oil loc k s c rew. 5. A d v a n c e magnet to next c oil and repeat steps 2, 3 , and 4. 6. P e r f o r m step five f o r remaining coils.. Bef ore mak ing t his adjus t ment , mak e s ure the int erposer magnet as s embly is properly adjusted (see SRP Maintenance Manual). 1. L o o s e n s c rew on f ront end of punch camshaft (Figure 4-7). 2. C r a n k mac hine unt il punch unit index is at 27' + — 0 ' f or Models 5 and 7; 36' ±1" f or Model 6. 3. A l i g n one of the magnets on the punch emit t er disk (Figure 4-7) wit h the upper c oil c ore (Punch CB 1) and tighten s c rew on f ront of punch camshaft.. PUNCH E M[ TTE R DANGER: S e t the CE s wit c h at CE MODE o r unplug the driv e mot or c ord before mak ing mec hanic al adjus t ment s to the e mi t t e r disk. T h i s p r e vents the driv e mot or f r o m being ac c ident ally started.. Coil Pole Tip. Index Disk Permanent Magnet. Coil Feed CBI. .005" to .009". Feed CB 4. Coil Locking Screw Feed CB 2. *. Feed CB 3. 1 1 1. 0* 3 0 * 6 0 * 90* 120* 150* 1 8 0 15* °I I I I I I i l I l „ „ Feed CBI .2. .1, j0 * 2 4 0 * 12 7 0 ° 3 0 0 * 3 3 0 Feed C B2 ° 3 6 0 * Feed CB 3. , n. Feed CB 4. „. „. „. 2600. „. I I. 330*. 355. Incremental Drive Emitter Disk. Figure 4 -6 . F e e d CB E mi tter Adj us tment. 4 -4. Figure 4 -7 . P u n c h and Inc remental Dri v e Emitters.

(21) tIgg r" t o fgos -g r -. 4. S e t up the 1442 to run continuously. 5. S c o p e the outputs of the punch emit t er a mp l i fi ers and adjust the c oil c ore-t o-emit t er dis k c learanc e of each c oil f or a puls e durat ion of 0. 1 ms t o 1. 0 ms.. Adjus t ment Proc edure The inc rement al driv e unit mus t be in t ime wit h the punch unit before mak ing these adjus t ment s . 1. L o o s e n nut on inc rement al driv e e mi t t e r s haf t (Figure 4-7). 2. C r a n k mac hine unt il punch index is at 0 0 A lat c h a r m should be f ree to mov e ( Fi g u r e ; t 4-8). h e 3. I n s e r t t iming pin in punch unit t iming dis k (Figure 4-8, ins ert A). 4. A d j u s t pos it ion of emit t er dis k : a. 1 4 4 2 - 5 and 7. A l i g n one of the magnet s on the dis k wit h the B (lower) c oil (Figure 4-8, i n s e r t B). b. 1 4 4 2 - 6 . A l i g n s c ribed line on the e mi t t e r disk wit h B (lower) c oil (Figure 4-8, ins ert C). 5. T i g h t e n nut on inc rement al driv e emit t er shaft and remov e t iming pin.. I NCRE ME NTA L DRI VE E MI TTE R DANGER: S e t the CE s wit c h at CE MODE o r unplug the driv e mot or c ord before mak ing mec hanic al adjus t ment s to the emit t er disk. T h i s p r e vents t he driv e mot or f r o m being ac c ident ally started. Adjus t ment Objectives • I n c r e m e n t a l driv e emit t er amplifi ers s hould e mi t impuls es at t imes shown on logic pages TC002 (1442-5 and 7) and TC003 (1442-6). • P u l s e durat ion should be 0. 1 ms t o 1. 0 ms .. Timing Pin Inserted at 00 when " A" armature is free to move. R.H. Cam Follower Arm Latched. Aligned. r -. 1442 Models 5 & 7 Timing. Aligned. 1442 Model 6 Timing Figure 4 -8 . I n c re m e n t a l Dri v e E mi tter Ti m i n g. 4-5.

(22) 6. S e t up 1442 f or continuous running. 7. S c o p e outputs of emit t er amplifi ers , and adjus t c oil-t o-emit t er disk c learanc e of c oils A and B f or pulse durat ions of 0. 1 ms t o 1. 0 ms .. PUNCH HOLD COI L VOLTAGE. LI GHT SOURCE L A MP VOLTAGE, MODELS 6 AND 7 Adjus t ment Objective Set the light source lamp voltage at its opt imum setting. T h i s prov ides the bes t possible perf ormance f r o m the read s t at ion while prov iding the longest prac t ic al lamp lif e.. Adjus t ment Objective Set the punch hold c oil voltage at it s opt imum s et t ing, half way between the l o we r l i mi t (where ex t ra punches occur) and the upper l i mi t (where punches are dropped). Adjus t ment Proc edure NOTE: Ho l d c oil voltage readings should not be taken while punc hing is t ak ing place. 1. A t t a c h met er ac ros s punch hold c oil at TB 2, logic page YA 100. 2. P r o g r a m system to punch heavy bit pat t ern (at leas t t hree punches) in all 80 c olumns of each c ard. 3. W h i l e punching t his bit pat t ern, adjus t the hold c oil voltage pot ent iomet er c loc k wis e unt il punches s t art dropping. S t o p the mac hine and meas ure the hold c oil voltage at t his point. T h i s is the upper voltage l i mi t . NOTE: T h e pot ent iomet er may go to it s upper l i mi t of t rav el wit hout dropping punches. I f t his happens, r e c o r d the highes t voltage obtained as the upper l i mi t voltage. CAUTI ON: D o not lower the hold c oil voltage below 6 volts. 4. W h i l e punc hing the s ame bit pat t ern, adjus t the hold c oil voltage pot ent iomet er c ount erc loc k wis e unt il ex t ra punches oc c ur (not below 6 volts). S t o p the mac hine and meas ure the voltage. T h i s is the lower l i mi t voltage. NOTE: T h e dif f erenc e between the upper and lower l i mi t voltages mus t be at leas t 2 volts. I f this range cannot be obt ained, c hec k the int erpos er magnet as s embly adjus t ments as des c ribed in the SRP Maintenance Manual. 5. S e t the punch hold c oil voltage midway bet ween the upper and lower l i mi t voltages. This point mus t be bet ween 7. 5 and..8.5 v olt s . 4 -6. Adjus t ment Proc edure The A C voltage applied to the lamp is adjusted by a pot ent iomet er and a h i - l o range toggle s wit c h, l o cated on the r e a r of the power supply. T h e AC voltage applied to the lamp can be meas ured at the lamp t erminal block. NOTE: Wh e n scoping data pulses, a relat iv ely long pulse, c aus ed by the space between c ards , w i l l be observed during each feed cycle. W h e n reading cards punched only in c olumn 40, t his res ult s in a long and a s hort pulse, t he s hort pulse being the data pulse. W h e n reading blank c ards , only the long pulse wi l l appear. CAUTI ON: B e f o r e s wit c hing the h i - l o range s wit c h f r o m LO to HI , rot at e the pot ent iomet er f ully c ount erc loc k wis e t o prev ent apply ing excessive v olt age t o the lamp 1. M e a s u r e and rec ord the AC voltage applied to the lamp. 2. S e t up the 1442 to continuously read cards. This can be done by programming or by plac ing both leads t o the hopper s wit c h on one t e r mi n a l and operat ing the NPRO key. 3. F i n d the l o we r - l i mi t voltage: a. F e e d c ont inuous ly a deck of manilac olored c ards prepunched (all punches) in c olumn 40. b. S c o p e input s to all data pulse amplifi ers (ER 121, 131). De t e r mi n e whic h amplifi ers rec eiv e input wav ef orms wit h the lowes t amplit ude, and whic h amplifi ers rec eiv e input wav ef orms wit h the highest amplit ude (Figure 4-9). c. S c o p e the output of the amplifi er r e c eiv ing the lowes t amplit ude wav ef orm. Decrease lamp voltage unt il the data pulse lengt h at the a mp l i fi e r output decreases s harply (Figure 4-9). T h e l o west port ion of the input wav ef orm should now be about O. 5 to 0. 7 volts. d. S c o p e the output of the read emit t er amplifi er ( E R 131). I f no out put is observed, inc reas e lamp voltage unt il emit t er pulses are observed.. ' 4 . 7 ).

(23) e. M e a s u r e the voltage applied to the lamp and rec ord it as the l o we r - l i mi t voltage. 4. F i n d the u p p e r - l i mi t voltage: a. F e e d continuously a deck of blank manila-c olored cards. b. S c o p e the output of the data pulse a mplifi er prev ious ly det ermined to have the highest amplit ude input wav ef orm (step 3-b). I n c r e a s e lamp voltage unt il extraneous spikes appear at the a mp l i fi er output, indic at ing that the "s hine t hrough" point has been reached. c. S c o p e the output of the read emit t er amplifi er (ER 131). I f the amplifi er i s found to be c ont inuous ly on, dec reas e lamp voltage unt il read emit t er pulses appear.. Scope Settings: .2 ms/cm .5v/cm Sync: Internal + Probe: Input to data pulse amplifier. re'. Scope Settings: .2 ms/cm 10v/cm Sync: External + on amplifier input Probe: Output of data pulse amplifier. 0. d. M e a s u r e the voltage applied to the lamp and rec ord it as the upper l i mi t voltage. 5. C h e c k that the dif f erenc e bet ween the l o we r and u p p e r - l i mi t voltages is at leas t 1. 0 volt. Adjus t the lamp voltage t o O. 6v ± 0. 1v above the l o we r - l i mi t voltage. T h e fi nal voltage s et t ing mus t not exceed 4. 0 volts. I f lamp voltage cannot be adjusted to meet s pec ifi cations in steps 5 and 6, c hec k the adjus t ment of the fi ber bundles and light source as des c ribed in the SRP Maintenance Manual. 7. I f the new voltage s et t ing dif f ers f r o m the original s et t ing (see step 1), c hec k the read emit t er t iming adjustments des c ribed in t his chapter.. Typical Low Magnitude Input Waveform. ourammemom. Double trace caused by pulse resulting from space between cards.. FAMI11111111111111111 u i i i i u i i. Difference in amplitude. •ME•EI•EME 1111111111111111EIM 11111 1111111111161 1 1 IIII•EEMIE111 M 111 11011111111 11111 1 1111 11111111111111111111111111111111 iuiiuuuu 11 111 1111. Double trace caused by pulse resulting from space between cards.. L c a u s e d b L i g h t enteringonl y 2nds l oty Light entering both slots a L i g h t entering1s ts l oti n mask l i C : ) Amplifier Output with Input Shown at g n m e n t o f. light source to read head.. Shortened pulse results if input amplitude falls below amplifier cutoff point. (App. 0.5 to 0.7 volts). C ) Typical High Magnitude Input Waveform. Scope Settings: .2 ms/cm 1.0v/cm Sync: Internal + Probe: Input to data pulse amplifier. Double trace caused by pulse resulting from space between cards.. Figure 4 -9 . D a t a Pulse Waveforms 4 -7.

(24) LI GHT SOURCE L A MP VOLTAGE, M O D E L 5 Adjus t ment Objec t iv e Set light s ourc e lamp voltage at it s opt imum s et ting to ensure the best perf ormanc e and prov ide the longest prac t ic al lamp lif e. Adjus t ment Proc edure The AC v olt age applied to the lamp is adjus t ed by a pot ent iomet er and a hi-lo range toggle s wit c h, located on the r e a r of the power supply. T h e AC voltage applied to t he lamp can be meas ured at the lamp t erminal block. CAUTI ON: B e f o r e s wit c hing the h i - l o range switch f r o m LO to HI, rot at e the pot ent iomet er f ully c ount erc loc k wis e to prev ent apply ing excessive voltage to the lamp. 1. W i t h no c ard in the read station, obs erv e the output of both the data 11 and the punch c ard lev er amplifi ers , l o g i c s ER 121 and ER 131 (use met er o r scope).. 2. L o w e r the lamp voltage unt il the output of one of the amplifi ers s wit c hes of f (down level). 3. M e a s u r e and rec ord the AC voltage applied to the light s ourc e lamp. T h i s is the lower l i mi t . 4. P l a c e a manila c ard between the light source and phot ot rans is t or of both the 11 read pos it ion and the punch c ard le ver. 5. R a i s e the lamp voltage unt il one of the a mp l i fi ers s wit c hes on (up lev el). D o not exceed fi v e v olt s . 6. M e a s u r e and rec ord the AC voltage applied to the light s ourc e lamp. T h i s is the upper l i mi t . 7. I f the dif f erenc e between the upper and lower l i mi t s is les s t han one v olt , s et the lamp voltage midway between the limit s . I f the dif f erenc e is great er than one v olt , s et the lamp voltage O. 6 v above the lower l i mi t . The fi nal s et t ing mus t not exceed 4. 0 volts..

(25) CHAPTER V. P O W E R SUPPLI ES. Power Supply (Reference Y A 100). The 4. 25 vac s upplied to the light s ourc e lamp at t erminals TB2-3, 4 is adjustable by h i - l o s wit c h SW1 and pot ent iomet er R9.. Specifications Input: 115/ 208/ 230 vac 1 0 % at 60 CPS 1 / 2 CPS Outputs: +1 2 vdc 1 5 % 4. 25 vac 7 % Regulat ion: Fe r r o - r e s o n a n t t rans f ormer Max imum Output Ripple: 3 % P - P Adjus t ment s The bas ic +12 vdc output is not adjustable in the fi eld. T h e 115 vac, 208 vac, o r 230 vac p r i ma r y voltage is selected by connecting the p r i ma r y v olt age t o the c orrec t taps on t erminal bloc k TB 1. The +12 vdc s upplied to the punch hold c oil at t e r minal TB2-7 is adjustable by a pot ent iomet er.. Use Met er Tr ans f or mer. Specifications Input: 115/ 208/ 230 vac at 60 CPS Output: 4 1 vac Regulat ion: No n e Adjus t ment The 115, 208, o r 230 vac p r i ma r y voltages is s elected by connecting the p r i ma r y voltage t o the c o r rec t taps on the t rans f ormer t erminal block.. 5-1.

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(27) CHAPTER VI. L O CA TI O NS. •. r -. Stacker Jam Switch. Punch Emitter/ Drive Pulley. Hopper. Operator Panel. Feed Cover. Stacker S t a c k e r s I n c r e m e n t a l L o w e r C a r d C ar d L i g h t T A , Eccentric ( O n e only D r i v e t n c r e m e n t a l F e e d F e e d S o u r c e T B Shaft o n 1442-5) E m i t t e r D r i v e Magnet I n d e x E m i t t e r L a m p T B 11-20. C i k b ' • F i g u r e 6 • 1 . I B M 1 4 4 2 M o d e l s 5 , 6 , a n d 7. 6-1.

(28) Switches & P r e H o p p e r R ead Station Indicators R e a d ( D u m m y read Station s t a t i o n on 1442-5). Light Source Lamp. Read H a n d Emitter C r a n k (1442-6, W heel 7 only). TB4 R e a d Clutch. Punch L o w e r Punch P S Connector Stacker Unit C a r d Guide C o r n e r i n g (Removable) S t a t i o n. Card Feed Clutch Magnet. Figure 6 -2 . I B M 1442 Models 5, 6 , a n d 7 Loc ations (Abov e Base, R e a r V i ew). ---- Power Supply. SLT Gate A. .„.„, Power Supply Fuse. DC Voltage Connector , C onveni ence 4=2.- Outlet Fuses Chip Box. TB2 8 Air Filter. • F i g u r e 6 -3 . I B M 1442 Models 5, 6 , a n d 7 Locations (Below Base, Front V i ew) 6-2.

(29) Power SupplyS ly p u Meter Power Pac. • ftVe r i . A r g Attl . .. 0 1 9 Pt - .,-. SLI Gate A SLI Cards. Lamp Voltage Adiustment. Hi -Lo Switch Hold Coi l Voltage Ad lustment Convenien Outl et. • F i g u r e 6 -4 . I B M 1442 Models 5, 6 , a n d 7 Loc ations (Below Base, Rear V i ew). Chip Box Sensing Mechanism.

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(31) I NDEX. Adjustments 4 - 1 Card Feed E mi tter 4 - 3 Inc remental Dri v e E mi tter 4 - 5. Locations 6 - 1 , 6 -2 , 6 - 3 Models 5, 6 , & 7 Abov e Base Front 6 - 1 Models 5, 6 , & 7 Above Base Rear 6 - 2. Li ght Source Lam p Voltage (Mods 6 & 7 ) 4 - 6 Li ght Source Lamp Vol tage (Mod 5) 4 - 8 Power Supplies 5 - 1 Punch E mi tter 4 - 4 Punch Hol d Coi l Vol tage 4 - 6 Read E m i tter Ti m i n g and Durati on (Mods 6 & 7 Onl y ) 4 - 2 Use M e t e r Trans former 5 - 1 A pproac h to Scheduled Maintenanc e 3 - 1 A ttenti on Indi c ator 1 - 1. Maintenanc e Features 2 - 1 Mark i ng Cards 1 - 1 Mec hanic al Adjustments and Removals 4 - 1 Ni c k i ng Cards 1 - 1 Offl i ne Mai ntenanc e 2 - 1 Operator Console E rror Indic ations 1 - 1 Ov errun Indi c ator 1 - 2. Card Ex ami nati on 1 - 1 Card Feed Cl utc h Response Service Chec k 4 - 1 Card Feed E mi tter Adj us tment and Serv ic e Chec k 4 - 3 Card Ni c k i ng or Mark i ng 1 - 1 CE Swi tc h 2 - 1 Check Indi c ator 1 - 1 Checks 4 - 1 Card Feed Cl utc h Response 4 - 1 Read Cl utc h Response (Mods 6 & 7 Onl y ) 4 - 1 Chi p Box Indi c ator 1 - 1 Data Pulse Service Chec k 4 - 2 Diagnostic Aids 1 - 1 Diagnostic Programs 2 - 1 , 1 -1 Diagnostic Tec hniques 1 - 1 General Procedures 1 - 1 Card Ex ami nati on 1 - 1. E mi tter (Card Feed) Adj us tment and Service Chec k 4 - 3 E mi tter (Inc remental Dri v e) Adj us tment 4 - 5 E mi tter (Punc h) Adj us tment 4 - 4 E mi tter (Read) Ti m i n g and Durati on Adj us tment and Service Chec k (Mods 6 & 7 Onl y ) 4 - 2 Error Indi c ator Lamps 1 - 1 Error Indic ations , Op e ra to r Console 1 - 1 Errors, Re a d i n g 1 - 1 Feed Cl u (Cl utc h) Indi c ator 1 - 2. PM Procedures 3 - 1 Power On Indi c ator 1 - 1 Power Supplies 5 - 1 Power Supply Adjustments 5 - 1 Mod 5 5 - 1 Mods 6 & 7 5 - 1 Power Supply Specifications 5 - 1 Mod 5 5 - 1 Mods 6 & 7 5 - 1 Punch E mi tter Adj us tment 4 - 4 Punch Hol d Coi l Vol tage Adj us tment 4 - 6 Punch Indi c ator 1 - 2 Punch Sta Indi c ator 1 - 2 Preventive Mai ntenanc e (P M) Procedures 3 - 1 Programs, Di agnos ti c 2 - 1 , 1 - 1. Read Cl utc h Response Service Chec k 4 - 1 Read Data Pulse Service Chec k 4 - 2 Read E mi tter Ti m i n g and Durati on Adj us tment and Service Chec k 4 - 2 Read Reg (Regi s trati on) Indi c ator 1 - 2 Read Sta (S tati on) Indi c ator 1 - 1 Reading Fai l ures 1 - 1 Ready Indi c ator 1 - 1 Response Serv ic e Chec k 4 - 1 Card Feed Cl utc h 4 - 1 Read Cl utc h 4 - 1. General Diagnos tic Procedures 1 - 1. Scheduled Mai ntenanc e 3 - 1. Hol d Coi l Vol tage Adj us tment 4 - 6 Hopper Indi c ator 1 - 1. Sense Sta (S tati on) Indi c ator 1 - 2 Service A i d Index 1 - 3 Service Aids 1 - 5. Inc remental Dri v e E mi tter Adj us tment 4 - 5 Indi c ator Lamps 1 - 1 Indicators, E rro r 1 - 1 Inspection 3 - 1. Service Checks Card Feed Cl utc h Response 4 - 1 Card Feed E mi tter 4 - 3 Read Cl utc h Response 4 - 1 Read Data Pulse Durati on 4 - 2 Read E mi tter Ti m i n g and Durati on 4 - 2. Lamp Tes t Line 2 - 1 Lamp Vol tage (Li ght Source) Mod 5 Adj us tment 4 - 8 Mods 6 & 7 Adj us tment 4 - 6 Lamps, I n d i c a t o r 1 - 1 Li ght Source Lamp Vol tage Mod 5 Adj us tment 4 - 8 Mods 6 & 7 Adj us tment 4 - 6. Specifications DC Power Supplies 5 - 1 Use M e te r Trans formers 5 - 1 Switch, C E 2 - 1 Trans (Trans port ) Indi c ator 1 - 2 Use M e te r Trans formers 5 - 1. X -1.

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(33) READER'S COMMENT FORM. IBM 1442- 5, 6 , & 7 FE Maintenance Manual. F. o. r. m. Y31-0098-1. • Your comments, accompanied by answers to the following questions, help us produce better publications for your use. I f your answer to a question is " No " o r requires qualification, please explain in the space provided below. All comments will be handled on a non-confidential basis. • Does this publication meet your needs? • Did you find the material: Easy to read and understand? Organized for convenient use? Complete? Well illustrated? Written for your technical level? • What is your occupation? • Ho w do you use this publication? As an introduction to the subject? L I I For advanced knowledge of the subject? E l For information about operating procedures? L I. A s an instructor in a class? 0 A s a student in a class? A s a reference manual? E l. Other • Please give specific page and line references with your comments when appropriate. If you wish a reply, be sure to include your name and address.. COMMENTS:. • Thank you for your cooperation. No postage necessary if mailed in the U.S.A..

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