Wang 928 Maintenance Manual Download Page 53

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Summary of Contents for 928

Page 1: ...V A 2M I CUSTOMER ENGINEERING DIVISION 03 0075 FIELD LEVEL MAINTENANCE CUIDE N0 3 928 worc1 ProcesstngSystems WANG REORDER NUMBER 741 0653...

Page 2: ...MASTER CPU 5510A 928M3 2 2 2 2 3 MASTER CPU 5520 928Ml 2 2 2 2 4 MASTER CPU 5525 5530 928M2 2 2 2 3 MASTER MAINTENANCE PROCEDURES 2 2 2 3 J REPLACEMENT FUSES FOR MASTER UNITS 2 2 2 3 2 MEASUREMENT OF...

Page 3: ...ODULE VOLTAGE ADJUST 3 17 3 5 3 2 POWER SUPPLY MODULE FAULT INDICATIONS 3 17 3 5 4 3 5 5 3 5 6 R R WANG PRINTED CIRCUIT BOARDS AND POWER REG 3 20 CHECK AND ADJUSTMENT OF WORKSTATION VOLTAGES 3 20 REPL...

Page 4: ...HOME ADJUSTMENT 4 33 4 17 TROUBLESHOOTING HINTS FOR HY TYPE II DAISY PRINTERS 4 36 CHAPTER 5 DISK DRIVES 5 1 GENERAL 5 1 5 2 DISK DRIVE COMPLEMENT PER SYSTEM 5 1 5 3 WP SYSTEMS MAINTENANCE UTILITY DIS...

Page 5: ...RIDGE INSTALLATION CDC DISK CARTRIDGE REMOVAL UNDER NORMAL CONDITIONS 5 6 l 5 POWER FAILURE OR EMERGENCY STOP REMOVAL 5 6 2 CONTROLS AND INDICATORS 5 6 2 l 5 6 2 2 FAULT DETECTION DAMAGING FAULTS I I...

Page 6: ...2 2 VOLTAGE CHECKOUT FOR TRANSLATOR AND PUNCH 6 3 6 2 3 TRANSLATOR INTERFACE BOX PCB COMPLEMENT 6 7 6 2 4 PIO CONTROLS AND INDICATORS 6 7 6 3 LINE PRINTER OPTION LPO 5521 5531 6 9 6 3 1 6 3 2 6 3 3 6...

Page 7: ...18 12 DISPLAY MONITOR ELECTRONICS BOARD 7256 3 3 POWER SUPPLY MODULE FOR WANG DISPLAYS 3 4 FULr SC1lEEN OF HO I s 3 5 WORKSTATION PCB LAYOUT 3 8 CRT CONNECTOR PROTECTED BY PHENOLIC LAMINATE 3 9 WORKS...

Page 8: ...OWER SUPPLY REAR COVER OPEN 5 24 DATA CHANNEL BOX HOUSES R W AMPLIFIER BOARD 5 26 LOCATOR DIAGRAM 5 26 MAIN CARD CAGE POSITIONS 5 27 REMOVAL OF PLUG IN PCB s 5 28 I O CONNECTIONS 5 30 CLUTCH SURFACE A...

Page 9: ......

Page 10: ...e on site maintenance prescribed in this manual is restricted to LEVEL 1 and LEVEL 2 In instances requiring corrective maintenance at LEVEL 3 the decision to perform these repairs is based on the capa...

Page 11: ...NUAL The Master units for each of the WP systems are contained in Chapter 2 with the maintenance and troubleshooting procedures that pertain to each system or group of systems Chapters 3 and 4 will co...

Page 12: ...E DISKETIE Accessories SYSTEM IJISKETIE Work Station Table General Work Table FIGURE 1 1 SYSTEM 10A 1 I ARCHIVE DISKETIE Basic Configuration 1 Work Station 1 System Diskette 1 Archive Diskette 1 40 CP...

Page 13: ...Printer Cable Length 25 Standard SYSTEM 20 ARCHIVE DISKETIE Additional Stations 2 Work Stations 2 Printers 40 CPS Daisy 120 CPS LPO 200 CPS LPO FIGURE 1 3 1 4 40 CPS DAISY PRINTER J 1 Ar Accessories W...

Page 14: ...Can support a total of 14 work stations printers or other peripherals in any combination Model 3 Printers can be 40 CPS Daisy 120 CPS Line Printer 200 CPS Line Printer 5571 Chain Printer Optional Per...

Page 15: ...N I tr g Basic Configuration 1 Work Station 1 10 Megabyte Disk 1 Archive Diskette 1 40 CPS Daisy Printer Cable length 2000 max I I CAN ADD UP TO 12 STATIONS IN ANY COMBINATION OF WORK STATIONS OR PRIN...

Page 16: ...flow is to a successful STEADY STATE condition 1 6 RECOMMENDED TE T EQUIPMENT AND TOOLS 1 Digital voltmeter 2 Standard Wang tool kit 3 Special tools which are listed in the Customer Engineering Divis...

Page 17: ......

Page 18: ...enance procedures and operational requirements 2 2 MASTER CPU CIRCUIT BOARD COMPLEMENT The printed circuit board complement for the Master units is as listed The only major difference in the Master Un...

Page 19: ...SES FOR MASTER UNITS Supplies 2 I O channels Supplies 6 I O channels 5525 supplies 6 and 14 I O channels 5530 supplies 14 channels only The same size line fuse is used for each of the four Master unit...

Page 20: ...voltages are listed below Figure 2 1 indica tt s the location for adjusting the voltages on the 7206 board LOCATION ADJ VOLTAGE TOLERANCE BOARD TP 7206 PCB or Ov 7201 TP 13 7206 Rl 1 5 VR 4 90 to 5 1...

Page 21: ..._r1 r 1 1 I I I t t I I J i I 1 0 1 j 06 i I I i I I I ii I I FIGURE 2 1 7206 MASTER CPU POWER REG PCB 2 4...

Page 22: ...1 l t t I I 1 t FIGURE 2 2 MODEL SA901 SHUGART ELECTRICAL PCB 2 5...

Page 23: ...FIGURE 2 3 PCB 7201 TEST POINTS FOR MASTER OPERATING VOLTAGES 2 6...

Page 24: ...s must be set to correspond with certain values depending on the software options currently installed in each of the systems If the switches are not set properly the system will not operate Refer to A...

Page 25: ...FIGURE 2 4 MASTER CPU PCB LAYOUT 2 8...

Page 26: ...osition and press the RESET button through the recessed hole in the bottom of the grill 2 4 l DISKETTE LOADING AND HANDLING The diskette is a flexible disk enclosed in a plastic jacket The interior of...

Page 27: ...USED WITH SYSTEMS 25 30 ONLY FIGURE 2 5 MASTER CPU LOCKING PLATE FOR SYSTEM DISKETTE AND OPERATING CONTROLS INDICATORS 2 10...

Page 28: ...G c II m N a 0 N en I 9 m r 0 l 0 2 G...

Page 29: ...5 13 7 SYSTEM floppy is plugged into Jl which is the front connector and the Archive floppy into J2 Systems 10 lOA 20 and WPS ES The Archive floppy is connected into Jl on Systems 25 and 30 2 After p...

Page 30: ...A ANO 10 PF RFnRH VISllAI CHF rKs TllRN HASTF R AND 111 Sl AVF S 110N 121 WAD DIAGNOSTIC DISKETTE PRESS RESET 161 SYSTEST Fll O REFER TO STEP I 151 TURN POWER OFF REPLACE PCR S ONE AT A TIHE 181 R EH...

Page 31: ...d printer the exception is the Editing Station No Printer If the power does not appear to be on perform the following steps a Check red power indicator lamp inside the front grill This red indicator l...

Page 32: ...ives are not running go to step 5 WARNING AFTER REMOVING AND REPLACING BOARDS INTERNALLY AND CERTIFYING PROPER OPERATION REPLACE ALL PLASTIC SEPARATORS AND EXISTING HARDWARE TO MAINTAIN THE RIGIDITY T...

Page 33: ...Drive at a time Switch the diagnostic from the old system drive to the new system drive Turn power on and reset If master does not IPL check 24 volts at the disk as illustrated in Figure 2 2 As a last...

Page 34: ...eel to rotate to the home position Refer to the printer discussion in chapter 4 if printer fails to RESTORE 2 6 TROUBLESHOOTING FLOW CHART FOR SYSTEMS 25 AND 30 Troubleshooting Word Processing Systems...

Page 35: ...K DR IVE 2 TRY ANOTHER DISKETTE 6 3 REPLACE DR IVE 1 DIAPLO f IODfL 44 2 CDC 1 1norL HAWK RESET SWITCHES CORRECTLY 11 LOAD UTILITY DISKETTE 12 1 SET ULTS D S llTCH LIP PRESS RfSFT SELECT SZAP FROM COM...

Page 36: ...s shown in Figure 2 1 d If 12 volt supply is missing or low look for a possible short on the memory board Remove and replace the memory board 7201 and check 12V If voltages are not within tolerance ad...

Page 37: ...or observe another powered up workstation No display will cause a return to step 4 for a check of the master data link or to step 6 for checking the diskette drive 928 SYSTEST REV Fl3 0 12 29 77 WARNI...

Page 38: ...B Insure that the system code is correct If the Master still doesn t IPL go to step 12 12 Load the UTILITY diskette into the Archive drive 13 Set ULTS switch to the up position and press RESET The Ut...

Page 39: ...I I...

Page 40: ...nics removable plug in PCB 7256 7456 with the exception of the front panel controls BRIGHTNESS and CONTRAST A separate power supply module furnishes the power for the Wang manufactured video display u...

Page 41: ...pply module PART fF 270 0361 for the 12 video display as shown in Figure 3 2 Adjust the 12vdc regulated voltage on the 7255 board that is mounted on the Power Supply module The adjustment must be 12 0...

Page 42: ...C c a m w I N c c U s 0 z w t I w 0 a m r m n t a 0 z n en m 0 a c i f 4 01 OOl ruw LP T r l i t...

Page 43: ...15 220 VAC Sf IITCH ASSEMBLY 6A SB 250VAC FUSE 6000 MFD ELECTROLYTIC 12 VR PA S TRANSISTOR FIGURE 3 2 POWER SUPPLY MODULE FOR WANG DISPLAYS 3 4 GREEN WHITE BLUE ORANGE ORANGE 7255 PC PO IER SUPPLY CON...

Page 44: ...C c 0 m w w c r w I r 11 I n 0 m m 2 0 c 0 I c i M 1o Cl C we M...

Page 45: ...le include Horizontal Scroll Wide Platen Option and Telecommunications TC See Chapter 6 for Options PCB 210 7425 210 7225 7235 7335 7229 7156 7226 7227 7228 NAME WS CRT CNTL W TC WS CRT CNTL ws CRT CN...

Page 46: ...blems 2 3 When removing and replacing PCBs internally DO NOT forget to replace plastic sleeve separators and retaining hardware See Figure 3 4 When removing the 7226 memory board be careful not to dis...

Page 47: ...Tl i5 c a m...

Page 48: ...Tl i5 c XI m w I UI n XI t n 0 z z m n d XI w I XI CD 0 t m J m c ID c m z 0 n s z J t m...

Page 49: ...oving cover Fan blades are easily broken if fan is rotating 3 Prior to removing the main cover prepare adequate space to the right of the workstation for storing the cover Place your hands on both sid...

Page 50: ...Tl C5 c D m w D w 0 z e j c 0 m D en D m 3 0 m c...

Page 51: ...the cabinet mounts Cone on each corner The keyboard base plate has been factory shimmed with a washer on each of the two rear mounts Note that the rear screws are not fully tightened This permits sli...

Page 52: ...a FIGURE 3 7 KEYBOARD REMOVED FOR ACCESS TO ELECTRONICS BOARD 7256 3 13...

Page 53: ...s c D m w do D m I if o 0 z c w D I m n m I m i 0 Tl m 0 D c...

Page 54: ...sired to check the operation of the keyboard prior to replacing the workstation covers use particular care to isolate insulate the keyboard from the chassis and static foil before turning the power ON...

Page 55: ...t I CJ a m m 0 z n 0 z z m a a c z c m a i m ill m m 0 a c _________...

Page 56: ...7256 7456 electronic board See Figure 3 2 The potentiometer adjust is mounted on the miniature monitor regulator board 7255 7455 attached to the rear of the power supply module Adjust the 12VR voltag...

Page 57: ...a C c a m w I Q 2 C w I 0 co z L a N 0 ii ii f...

Page 58: ...C5 c a m w I N c u V w s I V CD 0 l m a en c V V r i 0 c c r m...

Page 59: ...insure that the video cable from the 7225 7235 control board is routed between the control board and the 7226 board under the plastic spacer when removing and replacing boards to prevent contact with...

Page 60: ...i5 c D m w I N 0 D en E 0 z 0 w m a en c D m Ci c E 0 D m 0 D c...

Page 61: ...c a m w a iii I I 0 z I m w t I 2 a a 0 m a j z G 0 i G m I...

Page 62: ...ips underneath The back of the keyboard covet must be under the brightness and contrast controls Adjust keyboard position for free operation of all keys before tightening the cover with the three scre...

Page 63: ...L CHECK POWER CABLE 111 CONX CONNECTED TO MASTER CHANt TURN POWER ON CHECK COOLING FAN EXHAUST 121 NO rm l LTMrrtr 1 PROCEDURE I FOR 12 WANG I VIDEO DISPLAY I L C J A IL_ J NO COVERS CHECK 4 AND ADJUS...

Page 64: ...or 12V at TP A shown in figure 3 2 Adjust voltage if necessary If power supply module appears defective check the power plug on the module prior to going to step 5 5 Turn power OFF Repair or replace p...

Page 65: ...nd beeps using the menu Use space bar and select each operation from the top to the bottom of the menu Adjust the loudness of the clicks from the control on the rear of the chassis Offset the cursor o...

Page 66: ...vailable If not try a printer on the same master channel and see if it restores If the printer restores the problem remains in the workstation There is the possibility that an error on the workstation...

Page 67: ...I...

Page 68: ...ulator and the Wang electronics motherboard which houses three plug in PCBs DIABLO logic boards six 6 in number are mounted on the rear of the printer HY TYPE II standard equipment as shown in Figure...

Page 69: ...Cl Xi FT I c ji ID r 0 r 0 Cl DJ 0 JI c en 2 c 0 Cl m x m 2 2 t en...

Page 70: ...required for the DIABLO boards is derived on the WANG power regulator board 7249 and should be regulated to within 2 RMS 3 P P at the printer These voltages are routed to the Diablo boards via the Pow...

Page 71: ...Tl a c a m I N ti D z t m D i i 0 z t D 0 r en ti D t r i...

Page 72: ...i5 c g m w E 2 i I 1 j 11 _ C g 2 I m g 0 C n al 0 g c en 2 c 0 C m I m en I 2 2 I en I I I I I I 1 I I TEST POINTS l I OV SV SV 12V ISOLATION RESISTORS ON n47i71471 I I J I...

Page 73: ...ion Purpose 1 Power Indicator Lamp Illuminates when power is ON 2 Fault Indicator Lamp Indicates a system malfunction A RESTORE co11D11and is required to continue A printer CHECK condition 3 Cover ope...

Page 74: ...4 1 C I c a m _j c l c _ a z f m a 0 m I a a m C c a l c c c I f s m z f v...

Page 75: ...Q c a m 0 j m 6 j lo 6 00 n m 0 l a 0 1 I I I u 1 II I I St C I J enrs I...

Page 76: ...Tl C5 c u m 0 c OJ r 0 i r cb 0 C OJ 0 u c J 1 El CH 0 l i...

Page 77: ...to clean the platen or the paper feed rollers Alcohol dries and hardens rubber and results in paper feed problems Use an accepted platen cleaner IBM cleaning fluid Wang Part 660 0159 S Use alcohol fo...

Page 78: ...the standard HY TYPE II friction platen is accomplished in the following manner Paper is inserted down behind the platen and the platen rolled by hand to bring the paper around and up in front The pa...

Page 79: ...ce turn the small white take up knob until it engages in the slot for the ribbon drive The take up also keeps the ribbon taut for easier insertion behind the guide 4 Perform a print operation to insur...

Page 80: ...FIGURE 4 7 RIBBON CARTRIDGE REPLACEMENT 4 13...

Page 81: ...FIGURE 4 8 PRINT WHEEL REPLACEMENT 4 14...

Page 82: ...side that permit removal 2 Thoroughly inspect the printer for signs of wear and loose or broken hardware Check the carriage system f r tautness and possible drag along the entire length of the rails...

Page 83: ...I Cl Q c a m f co...

Page 84: ...C5 c D m t 0 f 2 G O D 2 4 c m m I...

Page 85: ...o much lubrication is worse than none at all 4 9 PRINT QUALITY ADJUSTMENTS The proper assessment of print quality requires that the print samples used for evaluation are obtained under standardized co...

Page 86: ...tment is performed with respect to the carriage assembly because of its permanent mount on rails The rails are rigidly clamped to the printer main frame 1 Card Guide Height and Position Adjustment 2 P...

Page 87: ...rtridge installed 4 CONTROLS The Platen Position manifold lever is to be positioned fully forward for these tests and adjustments POSITION A S PRINT INTENSITY ADJUSTMENT The Hy Type II Daisy Printer p...

Page 88: ...N HEIGHT ADJUSTMENT SLOT CARRIAGE HOMI ADJUSTMENT TAB CARD GUIDE ALIGNMENT TAB ALIGNMENT SI OT ALIGNMENT TOOL WLI 726 9603 TORX TOOL Tl5 WLI 726 9604 T9 WLI 726 9605 HAMMER ADJUSTMENT GAUGE WLI 11726...

Page 89: ...ng for proper ribbon and paper clearance 1 Loosen the two 2 3 16 Hex Head card guide mounting screws slotted screws on older models and move the card guide down Refer to Figure 4 12 2 Mount the alignm...

Page 90: ...po I N VJ Card Guide Height and Position Adjustment SCREW I I 1 1 1 I I I I I I I I I i FIGURE 4 12 CARD GUIDE ADJUSTMENTS SCREW...

Page 91: ...n the front eccentric on each end of the carriage assembly and set each to its mid range lobe facing to the rear using a 1 4 with a 7 16 open end wrench Tighten in this position Remove idler gear on r...

Page 92: ...i5 c a m w a c m m r I m a 0 I a a I 0 c 0 0 z ID a l I...

Page 93: ...ON LEVER FORWARO I CLAMP SCREWS I BOTH SIDES 1 J 7 16 WRENCH Iii TORX Tl5 SCREWDRIVER IDLER GEAR MAY BE REMOVED MODEL 1355WP DIMENSION A 005 010 PLATEN TO PRINT WHEEL CLEARANCES FIGURE 4 14 PLATEN TO...

Page 94: ...PLATEN DEPTH ADJUSTMENT Repeat for both ends of the platen 1 Loosen the two rear eccentric clamp screws on each side of the printer using a TORX TIS screwdriver and the screw for the rear eccentric it...

Page 95: ...OF THE HAMMER FOR WEAR IF EXCESSIVE WEAR IS INDICATED ON THE HAMMER EDGES REPLACE WITH A NEW HAMMER PART 726 5088 AND THE HAMMER SPRING 726 5089 THIS CONDITION INDICATES MISALIGNMENT SEE HAMMER REPLAC...

Page 96: ...firmly on the print wheel servo motor shaft making sure that it is properly seated with its alignment slot Bl engaged with the hub alignment tab 2 3 Rotate the tool to bring its hammer slot 82 in fro...

Page 97: ...355WP 073 to 063 r 1335WP 086 to 091 FIGURE 4 15 HAMMER ADJUSTMENTS Print Wheel To Hammer Alignment PUSH HAMMER IN SLOT PUSH HAMMER HERE FIGURE 4 16 PRINT WHEEL TO HAMMER ALIGNMENT 4 30 L...

Page 98: ...heel is only allowed to stop at each petal position if adjusted properly If the print wheel fails to stop at a petal position then the microprocessor will issue a RESTORE couunand The prin wheel will...

Page 99: ...ntinuously 8 revolutions the sensor B may be located too far from the print wheel home sensor flag C Loosen nut D and rotate the sensor clockwise until the print wheel stops Use a plastic shim to veri...

Page 100: ...he ribbon Remove the ribbc artridge and inspect ribbon visually after each adjustment 4 If the characters are net centered adjust the ribbon height eccentric screw with a slotted screwdriver as requir...

Page 101: ...001 FIGURE 4 17 PRINT WHEEL HOME ALIGNMENT RIBBON PLATE RIBBON CARION I OOll 012 SCREWS IENLAllGED fRONT VIEW RlllllON HEIGHT ECCl NTRIC 5 11 WRENCH fOR UICICING SCMWSI FIGURE 4 18 RIBBON HEIGHT ADJUS...

Page 102: ...Carriage Home Adjustment CASTING LEFT SIDE FRONT BEARING ECCENTRIC 5 16 WRENCH TOR Tl5 SCREWDRIVER CARRIAGE HOME SENSOR FLAG FIGURE 4 19 CARRIAGE HOME ADJUSTMENT 4 35...

Page 103: ...possible mechanical or adjustment failure NOTE It is necessary that the Customer Engineer first determine that power is available at the printer source It is also necessary that the BNC TNC coaxial ca...

Page 104: ...ECK FA l PLUG 111 CHECK DIABLO SWITCH SETTINGS CHECK DIABLO CARRIAG CABLES 121 TURN PRHHER ON 31 CHECK WANG DIABLO D C VOLTAGE 151 HECK VOLTAGE TUR l PRINTER OFF REPLACE DIABLO BOARDS 161 1 ADJUST VOL...

Page 105: ...the safety interlock switch normally activated by access cover The cooling fan in the lower left corner for the WANG boards should be running If fan is not running go to step 4 If fan is operating ob...

Page 106: ...voltages at the p ints specified in section 4 2 If the voltages check O K proceed to step 6 If not proceed to step 7 6 Replace the Diablo boards one at a time commencing with the LOGIC I board SLOT A...

Page 107: ...ck proceed to remove the Diablo boards one by one commencing with the LOGIC 1 board in slot A Turn the power OFF when removing and replacing boards Turn power ON after each board and observe the RESTO...

Page 108: ......

Page 109: ...orris ATS Maintenance Utility disk has been designed to run on any WANG 928 WP System Systems 10 lOA 20 25 nd 30 It is intended to be used in the field to assist the Customer Engineer repair and maint...

Page 110: ...field for repairing and maintaining disk drives There are two types of Maintenance Utilities one is for the single PROM systems and the other is for the newer dual PROM systems with the software EVENT...

Page 111: ...Write Diagnostics Disk Alignment Procedures 4 Select desired activity and EXECUTE To exit from an activity press CANCEL With no selection an arrow will slowly scan the Menu MAINTENANCE UTILITY FUNCTI...

Page 112: ...ayed Floppy Disk R W Diagnostics Please select next activity Floppy Drive 1 R W Test Floppy Drive 2 R W Test Select the floppy drive to be tested Floppy Drive 1 is either the System Drive on Models 10...

Page 113: ...test will NOT destroy any data that may be on the iisk DISK ALIGNMENT PROCEDURES Selecting this function will access the following menu Disk Alignment Procedures Please select next activity Sealed Dis...

Page 114: ...to Burst Seek 10 Radial Head Seek 146 Azimuth Seek 402 Locate Data Burst The above functions are used to align the CDC HAWK and the DIABLO 44 disk drive By pressing the COMMAND key during a function...

Page 115: ...5 4 SHUGART DISKETTE DRIVES MODEL SA901 Shugart Diskette drives Model SA901 are an integral part of all the Wang Word Processing Systems The maintenance specified in this manual for the diskette driv...

Page 116: ...e head load pad and head for dirt and or damage The head should be cleaned if it has an oxide build up that is visible to the naked eye Cleaning methods and materials other than those listed can perma...

Page 117: ...C5 c a m Y1 J 6 m I c c c m c a 2 en...

Page 118: ...Tl a c a m UI N z m e I r m c n r I m o 0 0 r 0 o c o c m c a z I Y _ i I...

Page 119: ...I I I I I I c c D m n J D t D 6 U1 Cl I m Cl c 0 m J 0 c c s m 2 t...

Page 120: ...tch and the diskette will pop out each time that one attempts to close the door See S B 46 3 for adjustment of WRITE PROTECT detector 5 4 4 HEAD LOAD BAIL ACTUATOR ADJUSTMENT a Turn the stepping motor...

Page 121: ...SCREW NEW STYLE BAIL UP STOP ADJUSTMENT SCREW FIGURE 5 5 W HEAD LOAD BUTTON TOOL HEAD LOAD ACTUATOR UP STOP ADJUSTMENT DOWN STOP ADJUSTMENT CREW lEMJ LOAD ARM 02 JIL l R W HEAD FIGURE 5 6 HEAD LOAD A...

Page 122: ...its storage envelope whenever it is removed from file b Keep diskettes clean Insure cleanliness in handling store in a clean place dont expose diskettes to cigarette ashes and spilled coffee c Use fel...

Page 123: ...44 can operate without the REMOVABLE disk 3 The disk drive should be left in the RUN mode when possible so clean filtered air will be supplied to the interior of the machine 4 Any sustained audible ti...

Page 124: ...econds When the switch is moved to the LOAD position the disk decelerates to a stop in about 15 seconds after which the LOAD light turns on A white indicator light which shows that the removable disk...

Page 125: ...es can be stored on edge or stacked flat 4 Limit flat stacking to five cartridges Do not store cartridges in direct sunlight or in dusty or dirty areas Any disk cartridge that has been dropped should...

Page 126: ...rt numbers and corresponding Wang part numbers The 1 0 card cage contains six slots for plug in type PCBs Only four of the slots are utilized for the Model 44 See Figure 5 7 for location and identific...

Page 127: ...14141 SPARE l TC 11537 MOO 44 ONLY 11409 SL Cll471l SR 114111 so 11402 116 33 AL2 c11401 ALI c1140 i l Q 1 11430 RORI 11643 SC 11459 VFI 11511 VFS 11627 DICS 11429 VFC 11519 VFO 116 75 1500 RPM l11517...

Page 128: ...01 11499 00 Panel Distributor board 11435 20 Actuator Wiring diagram A description of functions performed by each board is detailed in the DIABLO Series 40 Disk Drive Maintenance Manual 81601 Section...

Page 129: ...lt the voltage drop in the cable under nominal load is larger than it woul d be under normal conditions 24 volt outputs are not affected In the case of the 5 volt output however the drop is 0 3 volts...

Page 130: ...G c a m I c 0 Cl U1 m tJ r Q I lr 0 e m a I c...

Page 131: ...ti c 0 m en I co 31 0 c m r Q O 0 01 e m 0 en c O O r 0 m J 0 0 m 0 0 O m I l 1 __ _ _ _ _ _ z I i 1 _ ___ _ J i t I t 1 J 1 1 _ a _j...

Page 132: ...nto the LOAD position and turn the main power switch off after the LOAD light comes ON Disconnect the I O cable and turn power on and verify DC power A CHECK light ON in the LOAD mode indicates low vo...

Page 133: ...SECURING SCREW DATA CHANNEL BOX FIGURE 5 10 DATA CHANNEL BOX HOUSES R W AMPLIFIER BOARDS DATA CHANNEL BOX FIGURE 5 11 VIEW A 5 26 AIR PLENUM CHAMBER FOR AIR FILTER FIGURE 5 11...

Page 134: ...MAINTENANCE POSITION HEAD CLEANING POSITION FIGURE 5 12 MAIN CARD CAGE POSITIONS...

Page 135: ...TO REMOVE CARDS FROM CARDCAGE 11 I INSERT SUITABLE SCREWDRIVER IN POSITION A 121 SLOWLY PULL BACKWARDS TO POSITION B FIGURE 5 13 REMOVAL OF PLUGGABLE PCBs 5 28...

Page 136: ...r the card cage into the head cleaning position Access to the lower heads is now possible by manually moving the head carriage all the way out of the bowl a Clean both lower heads by rubbing lightly w...

Page 137: ...IBBON CONN TO PROCESSOR I 0 CABLE f D D Q D D FIGURE 5 14 I O CONNECTIONS 5 30 POWER CORD PLUG IN FROM POWER SUPPLY MODEL 11429 TERMINATOR BLOCK REMOVE SLOTTED COVER TO ACCESS I O BOARDS SEE FIGURE 5...

Page 138: ...or the drive is not normally installed when rack mounted The air filter plenum is on the right rear of the chassis when viewed from the front See Figure 5 11 Remove he two screws that secure the plenu...

Page 139: ...ary entry of atmospheric dust 2 If a pinging or scratching sound caused by head to disk contact is heard and persists stop the unit by using the Stop and Power Down procedure a An analysis should be m...

Page 140: ...aintenance is being performed CBI will trip out DISENGAGE if CB2 DC is not in the ON position The START STOP switch must be off to 2 3 4 release Pack Locks on hold down arms See Figure 5 16 Raise cart...

Page 141: ...RESET I I I i 1 WRITE PROTECT CART I FIXED CAUTION DO NOT REMOVE THE DISK CARTRIDGE UNLESS THE SLOT IS IN THE BLACK AREA A COIN MAY BE USED TO MAKE THE ALIGNMENT TRACK INDICATOR AC CBI BOTTOM VIEW FI...

Page 142: ...M12 J HANDLE r HOLD DOWN MM I FIGURE 5 17 DISK CARTRIDGE INSTALLATION 5 35 DUST COVER COVER RELEASE BUTTON DISK CARTRIDGE HOLD DOWN ARM DISK CARTRIDGE AND DUST COVER IN PLACE...

Page 143: ...TION If START STOP lamp is still illuminated after thr e minutes check brush indicator for not being fully retracted See Figure 5 16 Raise cartridge access door after START STOP indicator goes out 3 R...

Page 144: ...lear of spindle 7 Place dust cover in position in cartridge bowl and fold over top handle 5 6 2 CONTROLS AND INDICATORS Figure 5 16 illustrates the locations of the controls and indicators on the disk...

Page 145: ...aging faults are not dangerous from the point of causing damage to the disk drive unit or the recording media Non damaging faults are the data exchanges that result in READ and or WRITE errors The non...

Page 146: ...pressing the alternate action START STOP switch at any time after the start cycle is initiated will cause the machine to stop When the switch is depressed to stop machine the indicator light remains i...

Page 147: ...a momentary line power drop the unit heads will go into an emergency retract and the disk drive will stop However the unit will restart automatically when the power returns to normal In the event of a...

Page 148: ...black area A coin may be used to make the alignment CARRIAGE ASSEMBLY Vernier scale located on the side of the carriage over read write heads See Figure 5 16 Readable only when electronics cover is r...

Page 149: ...7831400 726 5617 4 Data Recovery BD ASM 75886537 726 5613 5 Read Write Erase 2400RPM 75296311 726 5612 Access to the Main Cage for PCB replacement requires the removal of the electronic rear cover tha...

Page 150: ...k PCB Extender NOTE The adjustments listed below will be performed in the order shown AVERAGE SEEK 5 6 6 1 SERVO BALANCE 5 6 6 2 FORWARD END OF TRAVEL FEOT 5 6 6 3 READ WRITE ERASE HEAD ALIGNMENT 5 6...

Page 151: ...293 and 405 R fer to section 5 3 for details 10 Adjust trigger level and observe waveform on channel 1 11 Adjust vertical horizontal position controls to obtain waveform depicted below SCOPE SE rl llG...

Page 152: ...er division at S volts DC coupling 7 Set channel 2 volts per division at I volts DC coupling 8 Set for CHOPPED sweep alternate if using T932 scope 9 Set trigger to internal channel 1 negative slope 10...

Page 153: ...END OF TRAVEL F E O T NOTE The following adjustments must be correct before proceeding SERVO BALANCE AVERAGE SEEK Perform the following steps 1 Power down if necessary turn AC power OFF and remove el...

Page 154: ...s card cage chassis These jumpers prevent the occurrence of a SEEK ERROR when the F E O T is contacted during this adjustment CAUTION These jumpers must be removed if it becomes necessary to retract t...

Page 155: ...llen head screws that secure the EOT assembly Figure 5 20 and place a wide blade screwdriver in the slot 25 Using the screwdriver move the assembly forward and reverse until the F E O T signal channel...

Page 156: ...AGND ti 1 t lI l II T I T I I 1 i l J 1 1 l l I l A TYPICAL F E O T WAVEFORM 1 CM e TYPICAL F E 0 T WAVEFORM 5 49 SCOPE SETTINGS HORIZ SMS CM VERT B UNCAL ADJUST FOR 5 CM HIGH VERT A IV CM SCOPE SETTI...

Page 157: ...nually unloaded should loss of spindle motion occur 3 Remove Relay Kl large relay on forward end of power supply board 1 4 Unplug A1P2 noting orientation according to label on casting See Figure 5 20...

Page 158: ...so at this time CAUTION Do not use a Xl probe at any point other than TP 2 of the R W E board 17 Using the 928 disk alignment utility command the unit to seek to cylinder 146 top head 18 Actuator sho...

Page 159: ...FIGURE A FIGURE B HEAD ALIGNMENT WAVEFORM Head Aligned HEAD ALIGNMENT WAVEFORM Head Within One Track 5 52...

Page 160: ...en the proper adjustment is obtained tighten the head clamp while observing the waveform Alternating adjustments may be necessary 26 On the Winchester I O card select the lower cartridge disk R W head...

Page 161: ...1 negative slope 15 Adjust trigger level and observe waveform on channel 1 16 The INDEX waveform now on channel l should be a 40 usec pulse or 3 usec 17 Place oscilloscope channel 2 on TP 1 of Winches...

Page 162: ...ted tolerance 19 usec should split the difference between both heads See Figure below IND X l ______________ I I I I 44 A 1 I I I I I I HEAD 0 ______ _ I UPPER SURFM 1 I I I I I HEADI I LOWER SURFACE...

Page 163: ...Replace Kl g Replace power supply cover h Remove SERVO board from extender if used and replace board into card cage i Return all switches on Winchester 1 0 board to the positions indicated in Section...

Page 164: ...5 6 6 6 CDC HAWK ALIGNMENT ILLUSTRATIONS A TP9 TP6 F Tl R 0 N i T TP2 TPI FIGURE 1 SERVO PREAMP TEST POINT LOCATIONS 5 57...

Page 165: ...I 1111 11 II II II FIGURE 2 WINCHESTER I O BOARD TEST POINT LOCATIONS 5 58 1i...

Page 166: ...12xGJ I IE Ul9 11 Ul3 rl IS If Ul6 i Ul2 14 1I U5 0 i f i J 2 1 ARI 1 ll ll 11 1 11 1 i r J _ 3 VJ z 0 H H u 0 l H z H 0 p H VJ H i i i i Lf I 0 I IX Lf I 0 i i VJ C l 0 i z...

Page 167: ...EAD SELECT SWITCHIS ET TO UNINVElTIO POSITIONS HEADS IJtE NUMl llD 0 I 2 3 flOM TOP TO IOTTOM WITH HEAD SlllCI SWITCHlS SET TO INVUIEO POSITIONS HfADS All NUMIUED 0 I 2 3 flOM IOTTOM TO TOP H S llT I...

Page 168: ...UPPER HEAD CLAMPS LOWER HEAD CL AA PS FIGURE 5 HEAD CLAMP LOCATIONS 5 61...

Page 169: ...ons The Table on Figure 5 19 is included for checking the plug arrangement in the case of an inadvertant error or power source change Use the table to check the present jumper arrangement illustrated...

Page 170: ...S CLAMP HOLD DOWN ARM CARTRIDGE 110 OAAO PREAMP BOARD 0 0 0 0 RECEIVER CARTRIDGE RECEIVER SCREWS JX 1 AA251a I _ FIGURE 5 18 MODT LE LOCATION ABOVE DECK 5 63 POWER SUPPLY ASSEMBLY ACTUATOR BRUSH INDIC...

Page 171: ...1 10 1 0 IMJ 160 170 JIU 190 IOO ZID llu 110 CO 1 0 flUJI lotNIAILE FIN PIH 14 1 l II l 14 I II II s II II l 14 l I 6 s u l l I DC CIRCUIT BREAKER Jltt fl 11 IXlu Ul AllU PIH PIN 15 1 IS 15 1 JS 7 IS...

Page 172: ...E O T ASSEMBLY RELAY POWER SUPPLY BD 2 POWER SUPPLY BD Ill POWER SUPPLY ASSEMBLY FIGURE 5 20 5 65...

Page 173: ...ound by interchanging e brass spacer with a fiber insulating spacer as indicated in Figure 5 23 The 928 WP systems require that the signal ground be connected to chassis ground This arrange ent is loc...

Page 174: ...llUn I 1 V r voe Ol n1111e Lil llYDC BJ I eaUSH r f J l Mnt B lllaD f I I I I I I I J I w t _ U YDC 1 22 DC 12 YDC U YDC 12 YDC tJJ _ I _ uvoc 7 SYDC SY 1 II II FIGURE 5 21 DC POWER DISTRIBUTION 5 ft...

Page 175: ...11 11 MON P6 ll 5VDC P6 5 5V RET P6 6 FIGURE 5 22 POWER SUPPLY BD NO 2 5 68 I 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 JI 0 0 35 l4 0...

Page 176: ...RA E OPTION IS INSTALLED INSULATING SPACER FIBER SHOULDER WASHER GROUND STRAP Ai LOGIC DC1 GROUND CONNECTED TC C ASSIS ACI GROU D FIBER SHOULDER WASHER PONER BOARD GROUND STRAP B LOGIC DC GROUND ISOLA...

Page 177: ...ENANCE PROCEDURES 5 6 9 1 CONTROL PANEL LAMP REPLACEMENT 1 Remove the Pushbutton Cover from the switch assembly by pulling the cover outward from the switch Note the orientation of the metal bracket i...

Page 178: ...heads Do not touch head face When cleaning or buffing always move tongue depressor perpendicular to length of head arm assembly Do not leave residue or lint on head faces 6 Inspect heads for dirt on h...

Page 179: ...disk wrap a piece of lint free gauze around tongue depressor and dampen do not soak with media cleaning solution 5 While rotating spindle by hand move tip of spatula applying moderate pressure across...

Page 180: ...J I I EXPANDER llACKET TER RACK MOUNTED UNITS ONLY BRAKE AND SPINDLE DRIVE MOTOR ASSEMBLY FIGURE 5 24 FILTER MOUNTING 5 73...

Page 181: ...OP lamp extinguished 2 3 Set main circuit breaker to off position Loosen filter clamp Figure 5 24 and swing clamp clear of filter 4 Remove filter expander bracket 5 Slide blower expander forward until...

Page 182: ...C c 0 m 0 m s 0 m Cf 0 J m U1 1 1 m lo m en 0 r c I m m 0 2 h 1 _...

Page 183: ...e a soft absorbent cotton cloth and wipe dry the surface of the chuck 1 Depress START STOP switch to STOP out and wait for spindle to stop rotating 2 3 Remove disk cartridge Inspect Magnetic Chuck for...

Page 184: ......

Page 185: ...quired to implement the options The Word Processing Options available to the Customer at the present time are as follows 1 PHOTOCOMPOSITION INPUT OPTION PI0 5508 2 LINE PRINIBR OPTION LP0 5521 5531 3...

Page 186: ...PIO CONFIGURATION 5508 r 115 VAC ______ _ INTERFACE TRANSLATOR WL 270 0396 1 PUNCH POWER SIGNALS CABLE BURNDY CONN L_______________ _ TYPICAL 928 SYSTEM WITH PIO OPTION FIGURE 6 1 6 2 DAISY PRINTER 55...

Page 187: ...screws 4 on each side This exposes all the boards internally as illustrated in figure 6 2 Convenient test points for checking the operating voltages for the translator box are located on the motherboa...

Page 188: ...R CORD PLUGS INTO WALL BNC C l O 1 RECEPTACL I tr _ I v 1 FUSE 1 SA f ii _ _ I I FINGERBOARD FOR PUNCH SIGNALS AND OPERATING VOLTAGES Rectfffer I I I PIO INTERFACE ioe PIO INTERFACE WITH ADDITIONAL RE...

Page 189: ...O I Jl D ooo 0 C J I I I I I J I I I I J I 1 I 00 I I I 120 D sv sv ov FIGURE 6 3 VOLTAGE TEST POINTS FOR PIO LPO I I I I J I l I l 7343...

Page 190: ...SVR SVR COMPONENT SIDE cs 7249 FIGURE 6 4 7249 P S REGULATOR CONTROLS FOR PIO LPO OPERATING VOLTAGES 6 6...

Page 191: ...ox accessories TRANSLATOR INTERFACE BOX PCB COMPLEMENT The following complement of printed circuit boards is used in the PIO translator box These boards are easily replaced if defective The following...

Page 192: ...PUNCH SOLENOIDS 24 VDC COMPONENT SIDE 7344 FIGURE 6 5 7344 PCB VOLTAGE REGULATOR CONTROLS FOR PUNCH OPERATION 6 8...

Page 193: ...ivated and paper tape is fed through the punch mechanism b Tape tension out of tape indicator The desk type punch incorporates a tape tension switch which also serves as an out of tape indicator This...

Page 194: ...E WL 270 0391 J7 COAX COAX I I I CANNON CONN I KEYBOARD r 1 L I MATRIX LINE 115 VAC L __ _ PRINTERS I MODIFIED AC 2221 2231 RECEPTACLE I I I _ T N _MOUNTED _J TYPICAL 928 SYSTEM WITil LPO CONFIGURATIO...

Page 195: ...ly from the PIO translator interface See figure 6 9 The interface is assembled to adapt to both printer options The differences between the LPO and PIO are detailed in Appendix A of WPNL 30 6 3 2 LPO...

Page 196: ...l D CABLE ASSY Ill 1220 0165 115 VAC POWER CORD PLUGS INTO BOTTOM OF 5521W AC RECEPTACLE OM BACK OF 5531 5521 5531 INTERFACE LPO INTERFACE PRINTER KEYBOARD RIBBON CABLE Ill 1220 3026 ONLY WITH 5521W P...

Page 197: ...FIGURE 6 8 LPO OPTION 5521 WITH BLACK BOX COVER REMOVED 6 13...

Page 198: ...ERFACE llO CABI E ASSy Ill 1220 0165 BNC TNC CONNECTORS TO 928 MASTER 5521 5531 llfTERFACE RECEPTACLE ON SACK OF 5531 PRINTER STANO M FURNISHED WITH 5521 5531 LPO 5531W LINE PRINTER OPTION LPO FIGURE...

Page 199: ...eck the LPO operating voltages as shown in figure 6 3 on the 7343 motherboard The 7249 regulator board adjustment potentiometers are shown in Figure 6 5 6 3 4 VOLTAGE AND PRINT TIMING ADJUSTMENTS FOR...

Page 200: ...CATION MEASUREMENT ADJUSTMENTS 5VR 6728 7028 Pin B1 5 volts 25 volts R82 12VR 6728 7028 Pin 131 12 volts 25 volts Rl03 ws 6577 Pin L3 925 us 25 us full cycle R38 aquarewave 507 duty cycle Rll WS TRAIL...

Page 201: ...25 us 25 us 6728 7028 PlN s1 6728 7028 R39 pot on right of board 425 435 us ________ R44 pot in cent or board 425 435 us PIN c2 6577 6728 nnmnmn_rmlli Jjj r nr q r rr r a R44 R39 MODEL 5521W VOLTAGE A...

Page 202: ...inting Perform the SVR adjustment prior to print timing NOTE WS Window Strobe is generated by the timing disk teeth passing the magnetic reluctance pick up See below for adjustments WS waveforms and t...

Page 203: ...ADJUST RlO SOOPE 119 7 NEG TRIGGER ADJUST R16 SCOPE 119 9 NEG TRIGGER ADJUST R19 SCOPE Channel 1 113 3 POS TRIGGER Channel 2 LJ 12 ADJUST Pivot Plate 1 1600 usec f 1 L t 800 usec I I L r 800 usec u __...

Page 204: ...Touch the FORMAT key to create a new format or touch SHIFT FORMAT to change an existing format and move the cursor across the format line using either the space bar or cursor control keys touching the...

Page 205: ...DE PLATEN WORKSTATION on the lower right corner of the screen and will not permit alteration of that document MAINTENANCE REQUIREMENTS FOR CRT WORKSTATION WITH WPO The maintenance required for a CRT e...

Page 206: ...included for this option 6 5 1 MAINTENANCE REQUIREMENTS FOR TC OPTION Model 5528 Connnunications Controller a Printed circuit board complement 210 7353 Data Link TC 210 7354 Memor 210 7355 CPU 210 735...

Page 207: ...CONN 3 CONN 4 I I 7355 Rl 1 I I I I ZJ54 R2 I I I I I 7356 Rl I I I 7353 Rl l I I R5 Rl 6 R32 R29 5VR Io I 7358 RO l 2VR_ filIQl tQ 5VR ll I HEAT SINK I 12VR CAP LlNE FILTER c p ll 5 230V SWITCH TC CO...

Page 208: ...2 3 4 5 ON OFF The Model 5528 hardw re also has the facility to have more than one 1 Model 5528 connected to the Master CPU In this case each TC channel must have its unique address set by the bank of...

Page 209: ...FA N REAR F I 00 OFUSE COAX CABLE CONN I l l I CURRENT ACU MODEM POWER LOOP CORD D S R 0 DISCONNECT 0 FRONT BUSY 0 POWER 0 FIGURE 6 11 COMMUNICATIONS CONTROLLER 6 25...

Page 210: ...g Wor Processing Systems The OCR Model 5595 9 includes the 4000 Series Autoreader figure 6 12 and the familiar Wang black box 5528 used with WP Telecommunications option The Autoreader made by ECRM IN...

Page 211: ...y when more than one Model 5528 is connected to the Master CPU In this case each TC channel substitute OCR must have its unique address coded on the bank of 8 channel I D microswitches mounted on circ...

Page 212: ...disseminated in WPNL 43 1 Supercedes WPNL 43 to provide field personnel with the installation operation and theory necessary to maintain an operating TSF option T FIGURE 6 12 lllE 4000 SERIES AUTOREAD...

Page 213: ......

Page 214: ...APPENDIX A Interconnection Drawings 1 D 6840 999 928 MASTER 2 D 6843 999 Model 5581 PRINTER 928 Pl Schematics for 9 and 12 Monitor CRT Boards 1 D 210 7256 2 D 210 7456 A 1...

Page 215: ...T fKSFt1ilft 10 9 9 a 4 Cit DS Tit 2 llHTI RlfJ 410 A sy IK lt O l 21 s OY 1 a 1 511 7 1 ll 41QA i or ffll 1 n CIO fN Jl t 4 5 ITVf AL r 8lOA 1111 DI ws2soa 4 U I I _c N C Ll O l C 1 Cl o r g L __ J...

Page 216: ...l D I 7l4Cf O I FX71AlNAL I T I r ot lll OA 11 s _ ________________________ __ 1 It 110011 t 4 llJ 11 A 66 IW tOll r J I m l m t 1 1 7ZJ f Ai 711 I f I v D 111orr s POWl t t 61 1 To l llr P111lll7 1 1...

Page 217: ...1 10 11 l l A vur u v lllS yzw ycK If 1J J LI TBA 150 lt7 5 r v1 0 Ol r J 0c 01t J _____ z____ I I VJ _____ _ OI I IH l ll I _ __ I s a T 11r f _ i J 08 _J r C O f t 2 111 Ill Ut II 1 A i_ c 1 i J I...

Page 218: ..._ 0 1 r L3 lt o i I l J Norrs rwr JZ LIAD t 4 Lii rM J L1m81t PtN S oil PIN II W 11 CJf LYEil 4 ll LS BEST l LA 11 HAN L 3 2 t 1Lffl 1ouu u ICkl taJl l llt 1n 111 I l I I V L e s 17 n 11 t N tt E IUO...

Page 219: ......

Page 220: ...in WPNL 54 PROGRAM LEVEL SWITCH SETTINGS FOR WP SYSTEM MASTERS 7202 PCB SWITCH ff 1 2 3 4 5 6 7 8 10 SYSTEM ff lOA lOA Mod II 20 30 Indicates switch position ON PCB 7346 I O BOARD FOR 928 MATRIX DAIS...

Page 221: ...er 5581WWP Wang Daisy Wide Platen 558l TSF Daisy PTR with Twin Sheet Feeder SWITCH 41 1 2 3 4 5 5511 5581 5521W 5531W 5508 5571 5581W 5581WWP 5581 TSF NOTE ONLY THE SWITCHES MARKED WITH AN SHOULD BE I...

Page 222: ......

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