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Summary of Contents for 6045 Series

Page 1: ......

Page 2: ...ware is sutnm ary in nature More detailed information Qn DGC software is available in current released publications NOVA INFOS and ECLIPSE are registered trademarks of Data General Corporation Westbor...

Page 3: ...Head Cleaning Head Replacement Lower Head Alignment Upper Head Alignment Servo Alignment Servo Board and Linear Motor Replacement Thermistor Board Replacement Logic Board Removal Read Write Board Rem...

Page 4: ...626 This primary document index shows the seven printed circuit boards of the 6045 6050 and 6051 Series Cartridge Disc Subsystem It also supplies the corresponding schematic 001 assembly 005 IPL 016...

Page 5: ...ree screws 0 Make sure the filter and the casting are clean before installing the filter Check the foam gasket on the new filter for damage before installing Install the filter Hook the rubber straps...

Page 6: ...he three screws in the following order as shown Unhook the spring from the side of the casting and unplug the connector Page2 When replacing the blower first plug in the connector and then hook the sp...

Page 7: ...20in lbs Plug in the connector which leads to the microswitch and the brush motor Loosen the two Allen screws securing the brush assembly to the casting and remove the assembly from the chamber Unplug...

Page 8: ...NOT TOUCH BRUSHES WITH FINGERS Remove the two crews holding the motor to the base plate The brush homJJ microswitch may be replaced at this point by removing the t o screws holding it to the base pla...

Page 9: ...et the baffle plate touch or fall onto the fixed disc Install the ring clamp Insert the 6 retaining screws and torque them to 10 in lbs Note the tightening order Unscrew and remove the six screws hold...

Page 10: ...ctor at P9 on the logic board Unplug the connector Reritove the sensor wires from the connector using the pin removal tool and itlj adapter Note the proper l pcation ofeach pin in the connector in ord...

Page 11: ...ce the new se sor in its s ket and run the wires back to the connector at P9 Insert the pins into their sockets and plug the connector into the logic board Make sure thepins go i to theirproper socket...

Page 12: ...P Channel 1 0 1v div D C Trigger Mode Auto Channel 2 N A Sync N A Time Base 0 2ms div Coupling N A Connect Channel 1 of your scope to Pin 3 of U2 on the logic board Vert Mode Channel 1 Source N A r 1...

Page 13: ...light voltage is a minimum of 400 millivolts above ground B Dark voltage is a maximum of 150 millivolts above ground Try to adjust for maximum light voltage and minimum dark voltage _ z 7 _ 1 0 1MV DI...

Page 14: ...dure and follow steps 2 5 Extend the drive fully and remove the top cover Remove the calltridge disc if one is installed Page 10 Go to the Filter Replacement Procedure and follow steps 2 4 Loosen the...

Page 15: ...nt Procedure page 12 t t f Place the new spindle in the disc cavity and align the stator cable with the slot in the casting Torque the four nuts to 8 in lbs and plug in the connector Rotate the blower...

Page 16: ...llenscrews holding the stator clamps ALLEN SCREW ____ 0 CLAMP 1 Remove the stator from the spindle Do not scratch sector ring Page12 CABLE AND CONNECTOR DISC SUBSYSTEM MODELS 6045 6050 6051 Place the...

Page 17: ...t the panel forward This will allow easier access to the sensor wires Trace the sensor wires to the connector at P9 on the logic board Unplug the connector Remove the sensor wires from the connector u...

Page 18: ...sor gauge and the sensor and tighten the harness screws t Extend the drive fully out and remove the top cover Remove the cartridge disc if one is installed Carefully remove the sensor gauge Connect a...

Page 19: ...e Set the on off switch to on Set the load ready switch to ready i J lj 17 l GROUND L II l i 0 2 VOLTS DIV Check the wavefltm for a minimum output voltage of 150 millivolts above and below round Ifvol...

Page 20: ...head Residue buildup is usuallythe result of contaminants that are introduced onto aread Write head or a disc surface These contaminants are usually alcohol residues which remain after the cleaning pr...

Page 21: ...nt free cloth soaked in 91 isopropyl alcohol to clean the heads and a dry lint free cloth to remove the residue Approach the upper heads from the disc cavity area Approach the lower head from the side...

Page 22: ...e 2 1 4 inchea along the new head cable Mark this point with a felt marker Unplug the head cable from the read write board Page 18 Apply a light coat of Slipspray to the threads of the clamp screws Re...

Page 23: ...ntil it hits the front stop HEAP CABLE RESTRAINT O Chook th th ho 1 iot t loader with a feeler gauge It should be_ a min of 0 030 inches If less than this tolerance is seen unlo4d the heads and bend t...

Page 24: ...ing Replace the screws Loosen the heed clamp Use wire gauge to set a gap of 030 inches between the front stop of the head and the carriage Page20 DISC SUBSYSTEM MODELS 6046 6060 6061 Use the torque wr...

Page 25: ...or the head alignment Remove the top coyer Remove the head shield if it has not already been removed HEAD 0 Loosen the head clamp and use the wire gauge to set a gap of 030 inches between the front st...

Page 26: ...rmature plate will cause an erroneous alignment Load the cartridge diskette reliability program Load the relaibility tape via the binary loader Set the data switches to start the Command String Interp...

Page 27: ...If the drive is fully extended out the weight of the drive may tend to bow the casting slightly and possibly throw off the alignment fll IJJJJJ CLAMP i To align the downward facing head loosen only t...

Page 28: ...a Burst channel 1 lnde channel 2 Page24 Repeat for Head 1 NOTE This procedure may have to be repeated so that both Heads maet alignment specifications Unload the Heads and wait for the load light to t...

Page 29: ...sition the linear motor in the fully retracted position DRIVE IN PLACE SWITCH c 1 2 3 SIDE VIEW 1 SERVICE POSITION 2 DRIVE OUT OF POSITION HEADS WILL NOT LOAD 31 NORMAL OPERATING POSITION Pull the dri...

Page 30: ...R223 Settling adj TP 16 TP 15 U32 TP 10 U4 Servo Alignment Cont ALL POT ADJ AND TEST SERVO BOARD UNLESS OINTS REFER TO THE THE WISE SPECIFIED SERVO BOARD Page26 DISC SUBSYSTEM MODELS 6046 6060 6061...

Page 31: ...a property of DGC and shall neither be reproduced in whole or in part without DGC s prior written approval nor be Implied to grant any license to make use or sell equipment manufactured in accordance...

Page 32: ...oupling Source 0 5v div DC NIA 2 ms div Channel 1 Auto NIA N A N A N A N t 0 applicable c ont Servo Alignment C Sine signal gain and DC BALANCE Adjust R281 f of 2 0 2 vol P an amplitude p Page28 Both...

Page 33: ...DC N A 2 ms div Channel 1 Auto N A N A N A N A Not applicable BALANCE COSINE SIGNAL DC Suggested location for Y Servo Alignment Cont our hand b k and forth by hand g the actuator ac by movin waveform...

Page 34: ...levels must be 1 volt minimum SCOPE SETUP Channel 1 Channel 2 Time Base Vert Mode Trigger Mode Sync Coupling Source 1 0 volt div OC NIA 2ms div Channel 1 Auto N A N A N A NIA Not applicable Page30 DI...

Page 35: ...disable switch to enable Heads will detent to track o Load the cartridge diskette re11 ab1 11 tYprogram Load the reliability tape via the binary loader J Set the data switches to the Command String I...

Page 36: ...umper between TP 36 aod TP 37 Page32 Adjust R218 for a symmetrical waveform about 0 01 volts SCOPE SETUP Channel 1 Channel 2 Time Base Vert Mode Trigger Mode Sync Coupling Source N A Not applicable 0...

Page 37: ...ween 0 and 150mV Try to adjust both peaks for equal amplitude THE FIRST PEAK IN EACH DIRECTION MUST BE LARGER THAN THE FOLLOWING PEAKS IF THEY ARE NOT THE LINEAR MOTOR MUST BE REPLACED See the Servo B...

Page 38: ...y switch to load Wait at least 2 seconds after the load light has come on before removing the cartridge Remove all probes and jumpers used in this procedure Power off the drive Disconnect the thermist...

Page 39: ...p cover SERVO BOARD linear Motor Assembly 118 000654 Motor Replacement Remove the four screws and nylon washers holding the servo board Unplug the five cables connected to the servo board and lift it...

Page 40: ...trapped under the motor Carefully clean the bottom plate of the motor and inspect it for damage Use a rubber band or some other means ofrestraint to keep the heads from moving out of the home position...

Page 41: ...crew the two captive screws securing the head shield to the linear motor assembly Captive hardware back out evenly Remove the top cover I Back off the screw holding the thermistor board to the casti a...

Page 42: ...cable leading to the read write board REAR s _ El8EJ El8EJ EJ0 El EJ EJ El al fll1 El8EfElEl 11Elu o i0l e G 9i tPG tl8GG 8El G8a a C J 11 i EJ EJ EJ EJ Remove the two screws and clamp holding the lo...

Page 43: ...cable at P29 running to the log Remove the read write board shield TO LOGIC_ BOARD READ WRITE BOARD 1T I CLAMP J WIRE 141 Unscrew the two screws holding the read wnte board to the casting and unplug t...

Page 44: ...P 13 from the power supply board at the rear of the drive Page40 P 10 P 11 DG 04963 Unscrew the four screws holding the rear cover and the two shipping brackets on the drive Unplug the two connectors...

Page 45: ...Unplug the line cord Extend the drive fully and remove the top cover Remove the four screws and nylon washers holding the servo board Lift up the board and unplug the connector at P 16 P 10 SHIPPING...

Page 46: ...cover and disconnect all the wires Make a chart ofwhere each wire is to be connected for the new power supply NUT Hold the pan so that there is no tension on the restraining strap Remove the nut and w...

Page 47: ...he solenoid connector from the power supply board at P 13 0 Unscrew the two screws holding it to the drive and lift it off Data General is presently using two solenoid assemblies from different manufa...

Page 48: ...unger and link bracket together and insert the spring pin Place the spring on the plunger Do not bend the link bracket when inserting the spring pin Check the plunger and link bracket for free movemen...

Page 49: ...witch a cartridge disc must be installed 0 DISC CAVITY i Reconnect the wires to the switch Insert the two screws with washers into their nuts Hinger tight only Adjust the switch so that the button on...

Page 50: ...t the two wires that supply power to the fan Unscrew the three screws and one nut that are holding the fan to the casting Now unscrew the four screws holding the fan to its mounting When replacing the...

Page 51: ...rd 005 005936 G Proceed to the rear of the cabinet isconnect the cables and the terminator if one is being used from the interface board Unscrewithe two screws holding the cover of the interface board...

Page 52: ...SY INTERFACE PCB TESTED CTG DISC IPL CONTROL CARD R W Head Clamps 6 9 IN LBS 110 IN OZ 005 005938 ASSY LOGIC PCB TESTED CTG DISC 016 000259 IPL INTERFACE PCB Spindle Motor A y to Base Casting l J 016...

Page 53: ...all Seek Done flags to 0 and stops all data transfer operations does not terminate a 8eek operation already in progress Sets the Done flag to 0 sets all error flags to 0 and initiates the operation sp...

Page 54: ...ff ac DKP 0 AC 0 0 F 0 0 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Loads bits 0 15 of the specified AC into the controller s combined Command and Cylinder Select Register After the data transfer sets the co...

Page 55: ...ase specify with page number and agraph Title _________________ Document No O You can cannot find things easily 0 Language is is not appropriate 0 Technical terms are are not defined as needed O Leami...

Page 56: ...1111 BUSINESS REPLY MAIL FIRST CLASS PERMIT NO 26 SOUTHBORO MA 01772 Postage will be paid by addressee t DataGeneral ATTN ENGINEERING PUBLICATIONS 4400 Computer Drive Westboro MA 01580 NO POSTAGE NECE...

Page 57: ...State Zip Telephone Area Code No D OEM D End User D System House D Government Qty Installed Qty On Order Ext 0 Batch Central D Batch Via RJE D On Line Interactive D HASP D X 25 D HASP II D SAM D RJE80...

Page 58: ...FIRST CLASS PERMIT NO 26 SOUTHBORO MA 01772 Postage will be paid by addressee DataGeneral ISD User Documentation M S E 111 4400 Computer Drive Westborough Massachusetts 01581 FOLD TAPE FOLD NO POSTAG...

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