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Chadwick-Helmuth A Business Unit of Honeywell International, Inc.

Appendix A -

8520C-36 Signal Selector

A.4.8.2 Dual Filter Assy. and Cable Harnesses

a.

Install filter (2) in chassis (11) and secure with four 4-40 X 3/8 php. blk. screws (3) and
four #4 intl. lock .260” washers (7).

b.

Install external connectors and harness (19, 20) in chassis (11) and secure with eight 4-40
X 3/8 php. blk. screws (3).

A.4.8.3 Connector Boards A1

NOTE: Do not reuse old screws to install nut rings.

a.

Install eight nut rings (26, 27) and four connector boards A1.

NOTE: Make sure ground wire is attached to connector lug as shown in Figure A-11.

A.4.8.4 Mux Board A4

a.

Make sure Mux board A4 has six #4 shoulder washers wedged into its holes and connect
four connectors (J1, J2, J3, J4) to Mux board.

b.

Align Mux board with hexagonal posts in chassis.

c.

Place six #4 .25” o.d. spacers (9) and six flat nylon washers (30) on top of Mux board
holes (temporarily hold in place with spare wires or the like).

A.4.8.5 Controller Board A3

a.

Place controller board A3 on top of Mux board spacers and secure at 5 places with five 4-
40 X 3/4 php. blk. screws (5) and five flat nylon washers (30). Secure the sixth hole with
one 4-40 X 7/8 php. blk. screw (29), one washer (30), and one cable clamp (31).

b.

Connect four connectors (J1, J2, J3, P2) on controller board A3.

c.

Install bottom cover (12) and secure with eighteen 4-40 X 3/8 pan php. blk. screws (3) and
eighteen #4 intl. lock .260” washers (7).

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Содержание Chadwick-Helmuth 8500C

Страница 1: ... System Chadwick Helmuth A Business Unit of Honeywell International Inc This document contains technology under The export jurisdiction of the U S Department Of Commerce Export Administration Act of 1979 as amended Title 50 U S C App 2401 et seq and EAR 15 CFR 730 ECCN 9E990 U S Schedule B 4906 00 0000 ...

Страница 2: ...s considered confidential No part of this Manual is to be copied or reproduced or transmitted in any form whatsoever including orally or by electronic transmission nor is any information in this Manual to be disclosed in any form whatsoever including orally or by electronic transmission to anyone other than an authorized representative of the User s employer who also shall agree not to disclose sa...

Страница 3: ... carry out a task Potential for damage to equipment Potential for minor moderate or serious injury Maintenance and Operation References Please refer to the following Chadwick Helmuth operator maintenance and user guides for detailed information concerning the 8500 Balancer and accessories Model 8500C 8500C Operators Manual PN 9449 6 Photocell System Operation and Maintenance Manual PN 10473 1 Stro...

Страница 4: ...Revisions Revision Record The following table shows the record of revisions for this user guide Revision Number Page Paragraph Description Approval Date 3 4 All A 4 4 3 Initial release Correct channel numbers for P 3 Harness P N 14440 Test Procedure February 17 2003 March 19 2004 ...

Страница 5: ...lated Publications 1 7 Chapter 2 8500C C Handling And Installation 2 1 2 1 Preparation For Use 2 1 2 1 1 Unpacking 2 1 2 1 2 Cable Interconnections 2 1 2 1 3 Disk Installation Figure 2 1 2 2 2 1 4 Printer Paper Removal Figure 2 2 2 2 2 1 5 Printer Paper Loading Figure 2 3 2 2 2 2 Repacking 2 4 2 3 Storage 2 4 Chapter 3 8500C C Operation 3 1 3 1 Softkey Functions Figure 3 1 3 1 3 2 8500C C Warm Sta...

Страница 6: ... Procedure 5 12 5 5 1 1 Test Setup 5 12 5 5 1 2 Power Up Self Test 5 13 5 5 1 3 Amplitude Frequency and Phase Accuracy Tests 5 13 5 5 1 4 Noise and Spurious Signals Test 5 15 5 5 1 5 Anti Alias Filter Response 5 15 5 5 2 8520C Signal Selector Test Procedure 5 17 5 5 2 1 Test Setup 5 17 5 5 2 2 Power Up Self Test 5 17 5 5 2 3 Amplitude Frequency and Phase Accuracy Test 5 17 5 5 2 4 Channel Crosstal...

Страница 7: ...9 5 9 1 Signal Selector 8520C Reassembly Figure 5 13 5 69 5 9 1 1 Power Supply Board A2 5 69 5 9 1 2 Controller Board A1 5 69 5 9 1 3 Quad Peak Detector A3 5 69 5 9 2 8500C C Reassembly 5 69 5 9 2 1 Reassembly of Printer Disk Drive Assembly 5 69 5 9 2 2 Reassembly of Balancer Analyzer Assembly Figure 5 17 5 70 5 10 List of Field Replaceable Components 5 72 5 11 Cage Codes 5 77 Appendix A 8520C 36 ...

Страница 8: ...viii Chadwick Helmuth A Business Unit of Honeywell International Inc Contents D 7 Maintenance and Repair D 16 Index I 1 ...

Страница 9: ... Board and Quad Peak Detector Board Block Diagram 4 11 Figure 4 7 Power Supply Board Block Diagram 8520C 4 13 Figure 5 1 Test Cable Fabrication Information 5 2 Figure 5 2 Functional Test Setup with Magnetic Pickup 5 4 Figure 5 3 Typical Balance Test Displays for 900 RPM 5 5 Figure 5 4 Typical Balance Test Displays for 1800 RPM 5 6 Figure 5 5 Typical Spectrum Test Displays 5 9 Figure 5 6 Functional...

Страница 10: ...Figure A 8 8520C 36 Test Cable Schematic A 21 Figure A 9 8520C 36 Channel Pin outs A 22 Figure A 10 8520C 36 Signal Selector Parts Breakdown A 25 Figure A 11 8520C 36 Signal Selector Wiring Diagram A 26 Figure A 12 C 130 Nacelle Harness P N 11690 Wiring Diagram A 27 Figure A 13 P 3 Nacelle Harness P N 14440 Wiring Diagram A 28 Figure A 14 Cable P N 11517 Schematic A 29 Figure C 1 Velocimeter and M...

Страница 11: ...ctrum Accuracy High Frequency Range 5 25 Table 5 7 Specification Spectrum Accuracy Low Frequency Range 5 28 Table 5 8 Troubleshooting Guide 5 31 Table 5 9 8500C C Balancer Analyzer Functional Tests 5 37 Table 5 10 8500C C Balancer Analyzer Calibration Tests 5 39 Table 5 11 8520C Signal Selector Tests 5 41 Table 5 12 Minor Repair Procedures 5 44 Table 5 13 Inspection 5 47 Table 5 14 Tools for Disas...

Страница 12: ...xii Chadwick Helmuth A Business Unit of Honeywell International Inc List of Tables ...

Страница 13: ...ystems Operating instructions are provided only to the extent needed to test the system 1 2 System Purpose And Function The 8500C C Balancer Analyzer system is used for both balance track operations as well as vibration analysis System uses Track and balance helicopter main and tail rotors Balance propellers Balance shafts and blowers Balance high bypass fans As a vibration analyzer the system can...

Страница 14: ...ctor provides 28 VDC input power and vibration inputs from an interconnect cable The other external connector connects to the Strobex The balancer analyzer assembly consists of the following items Digital board Contains a microprocessor which houses and runs the operating program processes the input data from disk information and aircraft vibration signals and performs all necessary calculations A...

Страница 15: ...rive assembly uploads software from the diskette to the balancer analyzer assembly Distribution board interfaces with the disk drive assembly and balancer analyzer assembly Power supply generates operating voltages for the printed circuit boards in the balancer analyzer assembly and printer disk drive assembly Harness assembly interconnects the printed circuit boards printer assembly and disk driv...

Страница 16: ...1 4 Chadwick Helmuth A Business Unit of Honeywell International Inc Chapter 1 Introduction Figure 1 2 8520C Signal Selector ...

Страница 17: ...System Physical Description 8500C 8500C System Maintenance Manual 1 5 Figure 1 3 System Cables ...

Страница 18: ...1 6 Chadwick Helmuth A Business Unit of Honeywell International Inc Chapter 1 Introduction Figure 1 4 System Accessories not to scale ...

Страница 19: ...g voltages for the printed circuit boards and transducers Controller board Selects the input signal as directed by the 8500C C Quad peak detector board Required for use with the FasTrak optical tracker Determines whether incoming sync signals are from an optical tracker 28 VDC power line filter Filters out line spikes noise generated on power line Power signal harness and Velocimeter magnetic pick...

Страница 20: ...t Connects 28 VDC power to 8520C 1 10808 25 Cable Magnetic Pickup 25 ft Connects magnetic pickup to 8500C C or 8520C via 10809 cable 1 10185 Cable Photocell Connects optical probe to photocell processor 10170 1 3529 Cable DC Power Extension Connects DC power to 8500C C or 8520C 1 Table 1 3 Basic System Accessories 1 Part No Nomenclature Purpose Qty Model 11A Calibrator Bench tests 8500C C system 1...

Страница 21: ...45 Gram Scale Pocket 120V Measures rotor balance weights 1 3030 Magnetic Pickup Provides magnetic pickup signals to 8500C C via 8520C or cable 8998 1 7310 Velocimeter Provides Velocimeter inputs to 8520C via cable 11210 50 11210 20 2 610 199 Printer paper Spare paper rolls for 8500C C printer assembly 1 15361 Carrying case Holds major system components cables and accessories 1 16253 VibEasy for 85...

Страница 22: ...h 32 function keys Sensitivity 19 mV ips fixed Velocimeter 0005 ips 0 5 ips fullscale through 25 ips 256 ips fullscale instrument Automatically selected gain ranges 4080 gain settings from 1 to 512 Input impedance 2200 ohms Minimum detectable signal 60 dB below full scale typical Anti alias filtering Two fixed corner frequency analog antialiasing filters 104 dB per octave initial rolloff Variable ...

Страница 23: ...ies with Smart chart software i e multiple corrective actions presented for multiple measurements Timing resolution 200 nanoseconds Amplitude accuracy 15 depending on frequency offset from FFT BIN center includes effect of window Input power printer disk drive 12 to 28 VDC 28 VDC nominal Operating temperature printer disk drive 10 C to 55 C Printer Dot matrix thermal printer Mass storage PC MS DOS...

Страница 24: ...rinter Disk Drive Operator s Manual 9077 1 Operation and Maintenance Instructions with Illustrated Parts Breakdown Calibrator Models 11 11A and 11A 11PS 9076 Operation and Maintenance Instructions with Illustrated Parts Breakdown Strobex Model 135M 12 10473 1 Operation and Maintenance Manual for Photocell System PN 10252 11211 Model 8500C C Quick Reference Guide III Specific Helicopter User s Guid...

Страница 25: ...t ensure that printer paper roll is tightly wound again by removing and reloading as instructed in sections 2 1 4 and 2 1 5 NOTE In the event of damaged or missing equipment report all details to Chadwick Helmuth 2 1 2 Cable Interconnections a Connect cable 10811 12 to POWER SIGNAL IN connector on 8500C C and OUTPUT POWER to 8500C C connector on 8520C Ensure system is connected to a 28 VDC power s...

Страница 26: ...disk drive until drive button pops out NOTE To remove a disk push drive button in Figure 2 1 Inserting Disk In Disk Drive 2 1 4 Printer Paper Removal Figure 2 2 a Tear off any excess paper b Clear paper from paper path by turning advance gear forward to back out paper as shown Or if advance gear has no effect pull paper out of paper path c Push on paper release lever and remove roll 2 1 5 Printer ...

Страница 27: ...t of unit and then pull it into position Ensure paper has no rumpled edges feeding into paper path Figure 2 2 Removing Printer Paper Figure 2 3 Loading Printer Paper PAPER OUT REMOVE PAPER ROLL AND REWIND TIGHTLY PUSH TO RELEASE PAPER TURN PAPER ADVANCE GEAR FORWARD TO TO REMOVE PAPER FROM PRINTER PATH PAPER OUT PAPER ADVANCE GEAR WITHOUT POWER PAPER IN PUSH TO RELEASE PAPER PAPER ADVANCE BUTTON W...

Страница 28: ...ies in carrying case 2 3 Storage a Place component to be stored in a polyethylene bag and pack in a fiberboard container b Mark container with part number serial number and maintenance date c The components can withstand a temperature range of 40 C to 71 C and a relative humidity of up to 90 for extended periods Store components in a cool dry area d Shelf life is 10 years ...

Страница 29: ...are affected by the following items brackets Whenever a soft key label is in brackets except for CHANGE pressing that soft key changes its label and the screen to a new mode pressing it again changes it back Whenever an item in a screen often a SETUP screen is enclosed in brackets and the cursor is placed on that item pressing CHANGE will change that item MORE KEYS An asterisk at the right end of ...

Страница 30: ...il Rotor Photocell Balance FILE SOFTKEY3 DRW ASTERISK INDICATES MORE LABELS ARE AVAILABLE WHEN MORE KEYS IS PRESSED Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N I A MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE K Q F L R STATUS SETUP PRINT A SHOW HIDE B MORE KEYS C STOP W Z X START 1 4 3 6 G M S 7 H 2 N 5 8 T 0 V I O 9 U ANNOTATE REDO MEAS SEL CHART SOLUTION CHAR...

Страница 31: ... correction The printer disk drive assembly loads stores and prints vibration and related data The Signal Selector 8520C selects vibration and pickup signals to send to the 8500C C Figure 4 1 8500C C Balancer Analyzer System Block Diagram PRINTER DISK DRIVE ASSEMBLY BALANCER ANALYZER ASSEMBLY SIGNAL SELECTOR 8520C BALANCER ANALYZER PRINTER DISK DRIVE 8500C 12 28 VDC 12 28 VDC CONTROL STROBEX 135M ...

Страница 32: ...ence for power up characterization of the analog anti alias filter By injecting this known signal into the input of the analog filter the digital board firmware can measure and record the unique frequency dependent characteristics of the analog filter every time power is applied to the 8500C C With this information the firmware compensates for filter component tolerances and drift that would other...

Страница 33: ...ly monitors the incoming signal level and adjusts the gain for optimum digitization resolution and maximum signal to noise ratio The position of the gain stage following the first stage low pass filter ensures that only in band signals are amplified further enhancing the signal to noise characteristics Up to 4080 different gain settings can be selected from a gain of one to 512 f Track and Hold Th...

Страница 34: ...DETECTOR 2 1 MULTIPLEXER HIGH PASS FILTER NOISE GENERATOR VELOCIMETER SIGNAL INPUT FROM 8520C PROGRAMMABLE GAIN AMPLIFIER ANTI ALIAS LOW PASS FILTER 2 ND STAGE GAIN OVERLOAD DETECTOR TRACK AND HOLD SYSTEM DATA BUS TO MEMORY ON DIGITAL BOARD ANALOG TO DIGITAL CONVERTER ANTI ALIAS LOW PASS FILTER 1 ST STAGE ANTI ALIAS LOW PASS FILTER 3 RD STAGE FILE FIG4 2 DRW ...

Страница 35: ... pickup period measurement The fifth channel is used to generate a precise clock for the switched capacitor filters on the analog board For measurements at frequencies up to 500 Hz a counter timer controls sample rates with a worst case resolution of one part in 2250 Above 500 Hz the worst case resolution is one part in 196 c Communications Controller The communications controller is a dualchannel...

Страница 36: ...ists of 256 kilobytes KB of erasable programmable read only memory EPROM 128 KB of non volatile random access memory NVRAM and 256 KB of dynamic random access memory DRAM The EPROM contains the system operating firmware program the NVRAM retains data in memory when power is removed and the DRAM is used for work space 8500C memory consists of 1 MB of non volatile random access memory NVRAM expandab...

Страница 37: ...anel filter is on the digital board near keypanel input The filter contains four low pass filters which reduce the high frequency energy on four keypanel scan lines to reduce keypanel emissions CONTROL COMMANDS TO ANALOG BOARD TIMING CONTROLLER TO FROM PRINTER BOARD PULSE DETECTOR MAGNETIC PICKUP SIGNAL INPUT FROM 8520C COMMUNICATIONS CONTROLLER SERIAL COMMUNICATIONS TO FROM 8520C LCD TO FROM DISK...

Страница 38: ... than 60 to 85 Volts are shorted to ground by a surge protector which causes the fuse to open The diode bridge supplies 27 VDC with the correct polarity if the input 28 VDC polarity is reversed The thermal cutoff switch shuts off power to the display heater and EL lamps when the internal temperature is above 65 C This protects the EL lamps whose life span is decreased when operated at high tempera...

Страница 39: ... disk drive assembly The power supply board generates the DC operating voltages for the balancer analyzer assembly and printer disk drive assembly The printer assembly prints the data The disk drive assembly reads the data from the diskette 4 2 1 2 1 Printer Board The printer board receives data and control commands from the communications controller in the 8500C C digital board and status signals...

Страница 40: ... disk 8500C C or 1 44 MB when used with a high density micro floppy disk 8500C only Figure 4 5 Power Supply Board Block Diagram 4 2 2 8520C Signal Selector The 8520C Signal Selector contains two printed circuit boards a controller and Velocimeter BIT Built In Test board and a power supply board The controller board selects the appropriate analog vibration input and or the appropriate magnetic or p...

Страница 41: ... difference circuits implement A B 2 which allows measurement of the scaled difference between two distinct channels or when channels A and B are the same a single channel e 2 1 Multiplexers The microcontroller controls electronic switches in the second 2 1 multiplexer which selects either the sum or difference output of the first sum difference function block for buffering and routing to a peak d...

Страница 42: ...s used for all control and communication functions in the 8520C The microcontroller is an Hitachi 6303A The microcontroller controls the timing of the various multiplexers and switches of the controller board The 6303 s built in serial communications controller is used for communications between the 8520C and the 8500C C 4 2 2 2 Velocimeter BIT Figure 4 6 The Velocimeter BIT portion of the board d...

Страница 43: ... power in on Figure 4 7 Power Supply Board Block Diagram 8520C 4 2 2 4 Quad Peak Detector Board The quad peak detector board contains four circuits identical to the pulse detector described on the digital board one per syn input Since these circuits are adaptive this parallel architecture allows rapid measurement among channels without adaptation latency 12 TO 28 VDC DIODE BRIDGE REGULATOR PWM STE...

Страница 44: ...4 14 Chadwick Helmuth A Business Unit of Honeywell International Inc Chapter 4 System Theory of Operation ...

Страница 45: ...ment Table 5 1 lists the test equipment accessories and cables needed to perform maintenance on the 8500C C balancer analyzer system Figure 5 1 shows schematics and materials needed to create test cables 8278 and 10502 Table 5 1 Test Equipment Part No Nomenclature Manufacturer Characteristics 9100 Power Supply Chadwick Helmuth 12 to 28 VDC 5 Amperes HP 8904A Signal Generator Hewlett Packard 10 mV ...

Страница 46: ...odel 3030 Magnetic Pickup Chadwick Helmuth See appropriate documentation Table 5 1 Test Equipment Part No Nomenclature Manufacturer Characteristics Test Cable 8278 Velocimeter to BNC Test Cable 10502 Magnetic Pickup to BNC B D A B D C NC NC SHIELD SHIELD Use any of these 6 pin connectors or similar connectors crimped or soldered C H 402 1061E crimped pins MS3476L10 6P crimped pins ITT Cannon PV76L...

Страница 47: ...ce level that the instrument is operating properly and within specifications The functional test setups use as much as possible all the components transducers cables etc that are used in the field This allows the user to verify the proper operation of these components and aids in fault isolation 5 4 1 8500C C Balancer Analyzer System Test Procedure with 8520C NOTE These tests build successively on...

Страница 48: ...r d i s k w h e n u s e d w i t h t h e 8 5 0 0 C h o w e v e r t h e c a l i b r a t o r w a s d e s i g n e d t o h a v e a t l e a s t t w o s c r e w s 1 8 0 d e g r e e s a p a r t T o s i m u l a t e a s e c o n d s c r e w e n t e r t h e a c t u a l r p m h a l f t h e C A M R A T E a s t h e b a l a n c e f r e q u e n c y a n d 2 a s t h e t i m e s f a c t o r i n t h e 8 5 0 0 C b a l ...

Страница 49: ...lect MAG PICKUP l Select AUTO STOP and press CHANGE soft key to select MAN STOP m Select PHASE UNITS field with arrow keys n Press CHANGE soft key to select DEGREES o Select PICKUP field with arrow keys p Press CHANGE soft key to select CHANNEL A q Select INPUT field with arrow keys r Key in 1 with numeric key s Press ENTER soft key t Wait 10 seconds u Press START key v Verify that display indicat...

Страница 50: ...s SETUP key on 8500C C aa Key in 900 with numeric keys in BALANCE FREQUENCY field ab Key in x2 as the times factor ac Press ENTER soft key ad Wait 10 seconds ae Press START key ACQUISTION DISPLAY FINAL RESULTS DISPLAY Figure 5 4 Typical Balance Test Displays for 1800 RPM af Verify that display indicates example in Figure 5 4 1800 2 RPM 0 8 0 08 IPS 275 10 ag Press STOP key ah Press SETUP key ai Se...

Страница 51: ...u Wait 10 seconds av Press START key aw Verify the display indicates example in Figure 5 3 900 1 RPM 0 4 0 04 IPS 275 10 ax Press STOP key ay Move 11210 cables to next Velocimeter channel positions listed in Table 5 3 and move cable 10808 to magnetic pickup channel position indicated in table az Press SETUP on 8500C C ba Select PICKUP field with arrow keys bb Press CHANGE soft key to select pickup...

Страница 52: ...meter and magnetic pickup channels listed in Table 5 3 5 4 1 4 Spectrum Test a Press SPECTRUM key on 8500C C b Press SETUP key c Key in 5000 with numeric keys in MAXIMUM FREQUENCY field d Press ENTER soft key e Wait 10 seconds f Press START key g Verify that spectrum is displayed examples in Figure 5 5 900 RPM CAM RATE Table 5 3 Velocimeter and Magnetic Pickup Balance Test Channel Combinations Vel...

Страница 53: ... l Verify that spectrum is displayed examples in Figure 5 5 m Use left or right arrow keys to move cursor dotted line to 1800 RPM n Verify that readout at top of display shows peak signal is 0 8 0 08 IPS at 1800 5 RPM 5 4 1 5 Track Test a Press TRACK key on 8500C C b Press MORE soft key to select 4 blades c Press START key d Aim Strobex at rotor disk on Calibrator 11A and pull trigger e Verify tha...

Страница 54: ...8500C C g Press SETUP key h Select PICKUP field with arrow keys i Press CHANGE soft key to select PICKUP B j Press STATUS key k After a few seconds the RPM on the screen should read approximately 900 RPM NOTE If you cannot adjust the distance or alignment to obtain 900 RPM there may be a problem with the FasTrak Return it to Chadwick Helmuth for adjustment l With a white index card or piece of pap...

Страница 55: ...ance setup display For example if the CAM RATE is 900 enter 450 as the balance frequency and 2 as the times factor NOTE 11B users bypass mag pulse doubler and connect magnetic pickup cable directly to channel A on 8520C This simulates 11A use Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N I A MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE K Q F L R STATUS SETUP PRIN...

Страница 56: ...until 8500C C stops reading diskette about 1 minute m Verify that display indicates Disk Drive Test Successful n Press OK soft key o Press QUIT soft key 5 5 Calibration Tests NOTE These tests require firmware version 3 21 or higher in the 8500C C balancer analyzer For instructions on changing the firmware to a newer version see Section 5 7 3 EPROM Change Procedure This section contains instruction...

Страница 57: ...gnal with an exact amplitude frequency and phase relationship to the 8500C C This input is also connected to the signal input of the spectrum analyzer so that the signal level can be verified on the spectrum analyzer The output measurements are then compared to specifications a Turn on spectrum analyzer and set up to view a 13 44 mVrms 100 Hz signal Use the following analyzer settings Frequency Ba...

Страница 58: ...play by pressing right arrow key once g Press CHANGE soft key to select Hz h Select AUTO STOP field with arrow keys i Press CHANGE soft key to select MAN STOP j Select PHASE UNITS field with arrow keys F I L E 8 5 C _ C A L D R W Y B A L A N C E R A N A L Y Z E R C H A D W IC K H E L M U T H E L M O N T E C A L I F O R N I A M O D E L 8 5 0 0 C D J P B A L A N C E T R A C K S P E C T R U M E H E L...

Страница 59: ...MAXIMUM FREQUENCY field e Select SEEK field with arrow keys f Press CHANGE soft key to select SEEK OFF g Press ENTER soft key and wait 10 seconds h Press START key i Verify that no noise signal is present on display above 0 005 IPS NOTE At minimum display scale each dot on display 001 IPS NOTE If any noise signals appear you can use left right arrows to move cursor to noise peak IPS level and freq...

Страница 60: ...ey g Wait 10 seconds h Press START key i Verify that no signal aliasing remains on display above 0 005 IPS 5 5 1 5 2 10 kHz Anti Aliasing a Set up spectrum analyzer to view a 13 44 mVrms 15 600 Hz signal Use the following analyzer settings Frequency Baseband Start 0 Hz Stop 20000 Hz Trigger Free run Average Off Window Flat top Source Off Input DC Coupling Auto range on Units X Hz Y Volt Vertical S...

Страница 61: ... of the spectrum analyzer so that the signal level can be verified with the spectrum analyzer The output measurements are then compared to specifications Figure 5 9 8520C Calibration Test Setup C A B L E 1 0 8 1 3 F I L E 8 5 2 0 C C A L D R W S I G N A L G E N E R A T O R H P 8 9 0 4 A S P E C T R U M A N A L Y Z E R H P 3 5 6 1 A A B C D 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 C A B L E 1 0 8 1 1 C A B L ...

Страница 62: ...ey on 8500C C d Press SETUP key e Key in 6000 with numeric keys in BALANCE FREQUENCY field f Select RPM on display with arrow keys g Press CHANGE soft key to select Hz h Select AUTO STOP field with arrow keys i Press CHANGE soft key to select MAN STOP j Select PHASE UNITS field with arrow keys k Press CHANGE soft key to select DEGREES l Press ENTER soft key m Monitor signal generator output with s...

Страница 63: ...ctrum analyzer with marker at 100 Hz Adjust signal generator output channel connected to Velocimeter input until amplitude is 13 44 0 05 mV RMS z Wait 10 seconds aa Press START key ab Verify that 8500C C display indicates FREQUENCY 100 0 0 1 HZ VIB LEVEL 1 000 0 04 0 05 IPS PHASE ANGLE 180 3 ac Press STOP key Table 5 4 8520C Velocimeter and Magnetic Pickup Amplitude Frequency and Phase Accuracy Ch...

Страница 64: ...l Set up signal generator as follows 1 For channel connected to magnetic pickup input set to Frequency 100 00 0 1 Hz Waveform Sine wave Amplitude 19 0 mV pk 2 Monitor signal generator output with spectrum analyzer with marker at 100 Hz Adjust signal generator output channel connected to Velocimeter input until amplitude is 13 44 0 05 mV RMS b Press SPECTRUM key on 8500C C c Press SETUP key d Key i...

Страница 65: ...um analyzer so that the signal level can be verified on the spectrum analyzer NOTE These tests build successively on the first test in this section Any settings not mentioned must be left as they were in the previous test 5 5 3 1 Test Setup Connect equipment as shown in Figure 5 10 5 5 3 2 Power Up Self Test a Hold down START key on 8500C C and turn on power supply b Wait until Power Up Self Test ...

Страница 66: ...00 rpm with numeric keys in MAXIMUM FREQUENCY field f Select RPM on display with arrow keys g Press CHANGE soft key to select Hz h Select SEEK field with arrow keys Press CHANGE soft key to select SEEK OFF i Select SINGLE field with arrow keys Press CHANGE softkey to select MULTIPLE j Press ENTER soft key and wait 10 seconds Press START key k After 5 seconds or more Press and hold STOP until the M...

Страница 67: ...S I G N A L G E N E R A T O R H P 8 9 0 4 A S P E C T R U M A N A L Y Z E R H P 3 5 6 1 A A B C D 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 C A B L E 1 0 8 1 1 S I G N A L I N P U T 8 5 2 0 C S I G N A L S E L E C T O R S I G N A L O U T B N C T C O N N E C T O R 8 5 0 0 C B A L A N C E R A N A L Y Z E R P O W E R S U P P L Y 9 1 0 0 A C A B L E 8 2 7 8 C O A X Y B A L A N C E R A N A L Y Z E R C H A D W IC K...

Страница 68: ...ess the right arrow key to move the cursor to the 2 closest amplitudes to the right of the fundamental peak and write down these amplitudes in Columns D and E o Fill in amplitude measurements for the remaining harmonic peaks in Table 5 6 p Calculate the true amplitude of each harmonic peak in Table 5 6 as follows and write down this value in the True Amp column of Table 5 6 q The true amplitude of...

Страница 69: ...840 0 Hz 171895 RPM ______ IPS 2864 9 Hz 173390 RPM ______ IPS 2889 8 Hz 174884 RPM ______ IPS 2914 7 Hz 176379 RPM ______ IPS 2939 7 Hz 7th Max Allowed 1 630 Actual _____ IPS Min Allowed 1 252 240653 RPM ______ IPS 4010 9 Hz 242148 RPM ______ IPS 4035 8 Hz 243642 RPM ______ IPS 4060 7 Hz 245137 RPM ______ IPS 4085 6 Hz 246632 RPM ______ IPS 4110 5 Hz 9th Max Allowed 1 268 Actual _____ IPS Min All...

Страница 70: ... EXECUTE soft key You cannot proceed until the Analog Filter test passes Occasionally the Analog Filter test may fail with nothing permanently wrong with the 8500C C If it does fail press OK soft key and the EXECUTE soft key to run again If it continues to fail refer to Table 5 8 Troubleshooting Guide i After Analog Filter Test passes return to Self Test menu by pressing OK soft key j Exit Self Te...

Страница 71: ...connected to Velocimeter input set to Frequency 51 0 0 05 Hz Waveform Square wave Monitor signal generator output with spectrum analyzer with marker at 51 0 Hz Adjust signal generator output channel connected to Velocimeter input until amplitude is 134 4 0 5 mV RMS z Wait 10 seconds and then press START to acquire another spectrum at the new input signal frequency Write down the amplitude of the f...

Страница 72: ...er ________ Date _______ Table 5 7 Specification Spectrum Accuracy Low Frequency Range Input Frequency Fundamental Peak 490 0 Hz 29400 rpm ______ IPS 406 0 Hz 24360 rpm ______ IPS 308 0 Hz 18480 rpm ______ IPS 210 0 Hz 12600 rpm ______ IPS 154 0 Hz 9240 rpm ______ IPS 98 0 Hz 5880 rpm ______ IPS 51 0 Hz 3060 rpm ______ IPS 21 0 Hz 1260 rpm ______ IPS 9 0 Hz 540 rpm ______ IPS 6 0 Hz 360 rpm ______...

Страница 73: ...S P E C T R U M A N A L Y Z E R H P 3 5 6 1 A V E L O C I M E T E R I N P U T 6 P I N M A G P I C K U P I N P U T U N U S E D P O W E R S U P P L Y 9 1 0 0 A C A B L E 8 9 9 8 C O A X Y B A L A N C E R A N A L Y Z E R C H A D W IC K H E L M U T H E L M O N T E C A L I F O R N I A M O D E L 8 5 0 0 C D J P B A L A N C E T R A C K S P E C T R U M E H E L P L O A D S T O R E K Q F L R S T A T U S S E...

Страница 74: ...step only if the problem has not been solved The troubleshooting guide isolates the problem to the field replaceable component If the unit still is not functioning properly return to Chadwick Helmuth for repair This equipment contains voltages capable of causing injury or death Remove power before removing the covers and servicing the equipment Observe static discharge precautions The circuit boar...

Страница 75: ...C C s memory simply power down the 8500C C wait 10 seconds and turn power back on 3 Power down 8500C C After ten seconds hold down START key and turn power back on this erases all memory in 8500C C 4 Verify that EPROM s Figure 5 15 and S RAM U10 Only the 8500C has S RAM are plugged correctly into digital board Check for bent pins etc 5 Verify that keyboard connection Figure 5 19 Sheet 2 P4 J4 is c...

Страница 76: ...ck EPROM s for bent pins etc Reinstall EPROM s 3 Replace EPROM s ANALOG FILTER FAILURE 1 Write down all information displayed on 8500C C 2 Press TRY AGAIN soft key This failure can occur occasionally with nothing permanently wrong with unit 3 Power down 8500C C After ten seconds hold down START key and turn power back on this erases all memory in 8500C C 4 Check 8500C C harness assembly Figure 5 1...

Страница 77: ...h insulation 5 Clean disk drive heads Section 5 7 1 2 Disk Drive Cleaning Procedure 6 Replace disk drive 7 Digital board is most likely at fault Replace digital board Figure 5 17 A1 8500C C pilot light is not on and screen display is blank NOTE The backlight may still be working in this situation 1 Adjust LCD CONTRAST and BACKLIGHT ADJ knobs on 8500C C If screen is still blank and backlight is not...

Страница 78: ...EPROM Change Procedure Check EPROM s for bent pins etc Reinstall EPROM s 3 8500C Only Remove SRAM U10 Figure 5 15 while observing antistatic precautions which are discussed in Section 5 7 3 EPROM Change Procedure Check SRAM for bent pins etc Reinstall SRAM 8500C C LCD does not operate in cold temperature NOTE If backlight does not work skip ahead to backlight troubleshooting procedure 1 Verify tha...

Страница 79: ...dance with Section 5 7 4 Battery Pack Check and Replacement 8520C short light illuminated 1 Remove Velocimeter cables one at a time from 8520C until short light goes out Check cable for shorts Figure 5 14 If cable at fault replace repair cable Otherwise replace Velocimeter 2 Cycle power on 8520C 3 Check 8520C harness assembly Figure 5 21 for shorted or open connections which can be caused by loose...

Страница 80: ...paper roll is empty 3 Paper may have pulled away from sensor Tighten paper roll and reinstall 4 Remove tear bar Figure 5 18 11 27 and check for paper debris that may be jamming the gears Check that gears are able to turn if they cannot remove thin metal strip on printer and check behind that for debris 5 Press STATUS and verify that screen display indicates print jobs are waiting to be printed 6 C...

Страница 81: ...y for those 8520C channels that failed balance test 4 Check calibrator in accordance with Chadwick Helmuth manual Calibrator Operation Maintenance Instructions P N 9077A 5 Replace Velocimeter mag pickup and retest 5 4 1 4 Spectrum Test Vibration level and or frequency do not meet specifications 1 Perform 5 5 1 3 Amplitude Frequency and Phase Accuracy Tests to determine whether fault is with 8500C ...

Страница 82: ...used by loose or pinched wires unplugged connectors or worn through insulation 5 Digital board is most likely as fault Replace digital board Figure 5 17 A1 5 4 2 Disk Drive Test Procedure 1 Repeat test with another diskette 2 Perform disk drive cleaning procedure Section 5 7 1 2 3 Check 8500C C harness assembly Figure 5 19 for shorted or open connections which can be caused by loose or pinched wir...

Страница 83: ...gh insulation 2 Digital board is most likely at fault Replace digital board Figure 5 17 A1 5 5 1 4 Noise and Spurious Signals Test Noise above 0 005 IPS is present on display 1 Turn EL backlight Figure 2 1 all the way down Wait ten seconds and retest Repeat five times 2 Check 8500C C harness assembly Figure 5 19 for shorted or open connections which can be caused by loose or pinched wires unplugge...

Страница 84: ...ious signals test Section 5 5 1 4 should be performed 3 If noise is at 10 kHz it is an aliased signal most likely caused by analog board Replace analog board Figure 5 17 A2 5 5 4 8500C C Spectrum Accuracy Test True amplitude which was calculated for a harmonic peak does not fall between minimum and maximum limits in Table 5 4a or 5 4b 1 Check all cables for shorts proper connections 2 To isolate w...

Страница 85: ...ires unplugged connectors or worn through insulation 2 Disconnect 8520C and retest according to 5 5 1 3 Amplitude Frequency and Phase Accuracy Tests 3 If 5 5 1 3 Amplitude Frequency and Phase Accuracy Tests pass 8520C is most likely at fault Replace 8520C controller board Figure 5 19 A1 5 5 2 4 Channel Crosstalk Test Noise signal above 01 IPS is displayed 1 Disconnect 8520C and retest according to...

Страница 86: ...BOARD A5 YES NO YES DISCONNECT P3 ON PRINTER BOARD NO YES REMOVE POWER CONNECTOR FROM DISK DRIVE YES REPLACE DISK DRIVE RETURN 8500C TO FACTORY FOR REPAIR NO NO 8500C PILOT LIGHT NOT ON FILENAME FLOWCHTA DRW REPLACE P S BOARD A3 PILOT LIGHT ON PILOT LIGHT ON PILOT LIGHT ON PILOT LIGHT ON PILOT LIGHT ON PILOT LIGHT ON RECONNECT P4 REMOVE ANALOG BOARD A2 REPLACE ANALOG BOARD A2 REPLACE PRINTER ASSY ...

Страница 87: ...EAK DET BOARD A3 FROM CONTROLLER BOARD A1 REPLACE QUAD PEAK DET BOARD A3 YES NO REPLACE CONTROLLER BOARD A1 AND RECONNECT A3 YES NO PROBLEM SOLVED YES RETURN 8520C TO FACTORY FOR REPAIR NO POWER LIGHT ON REPLACE P S BOARD A2 POWER LIGHT ON 8520C POWER LIGHT NOT ON POWER LIGHT ON FILENAME FLOWCHTB DRW NOTE THIS FLOWCHART ASSUMES THAT THE FUSE AND HARNESS ASSEMBLIES HAVE ALREADY BEEN CHECKED ...

Страница 88: ...aning 5 7 1 1 Surfaces and Cables Clean exterior surfaces of major components and cables as follows a Wipe surfaces with a clean lint free cloth moistened with a solution of water and a mild detergent Do not use solvents on the 8500C C display window b Wipe surfaces with a clean lint free cloth moistened with clean water to remove detergent residue Table 5 12 Minor Repair Procedures Item Repair Pr...

Страница 89: ...e symptoms usually include an increased number of disk read and write errors Commercially available 3 5 inch disk drive cleaning kits provide special disks that are specifically designed to clean dirty heads Use one of these kits to clean the 8500C C disk drive as follows a Follow cleaning kit instructions to apply cleaning fluid to disk b Close or tape over write protect window located on corner ...

Страница 90: ...1 P2 A B C D B A BLK WHT NC NC P1 P2 10811 SIGNAL SELECTOR CABLE 10808 MAGNETIC PICKUP CABLE 11210 VELOCIMETER CABLE B A P2 B A P1 3529 DC POWER EXTENSION CABLE A B C D A B C D 10185 PHOTOCELL CABLE A C R BLK WHT RED GRN E N L M P D J S T H G B K U F BLK GRN RED WHT BRAID BLK GRN RED WHT BRAID N C P5 1 FROM DIGITAL BOARD P5 3 FROM DIGITAL BOARD N C P109 POWER SIGNAL INPUTS A B C D A B A B C D E F ...

Страница 91: ...f the 8500C C system in accordance with Table 5 13 Table 5 13 Inspection Item Inspect for Remedy Major components Cables 1 Dust dirt or other foreign matter 2 Check printed circuit boards for cracks or breaks peeling circuit traces loose or missing electrical parts and solder joints for corrosion or damage 3 Check connectors for bent or broken pins corrosion arcing or damage 1 Breaks tears fraying...

Страница 92: ...he following will suffice On a normal wood or plastic table top cover a one half to one meter square area with aluminum foil taped down at the edges Touch the foil with your bare hand and set the 8500C balancer analyzer and the EPROM container on the foil During the entire procedure do not grab any materials not in contact with the foil especially sheets of paper or plastic During the entire proce...

Страница 93: ... NOTE If pins do not align well very carefully push EPROM against a flat surface to form pins inward until they are parallel f Install bezel Figure 5 17 4 on keypad panel 1 and secure with ten screws 32 and four screws 33 5 7 4 Battery Pack Check and Replacement 5 7 4 1 Battery Pack Check a Power the 8500C C unit continuously for 72 hours This ensures the battery pack has become fully charged b To...

Страница 94: ...d replace with a new fuse P N 301 20258 c Reinstall bottom cover 12 and secure with eighteen 4 40 x 3 8 pan php blk screws 5 and 4 std intl lck 260 washers 7 5 7 5 2 8500C Power Supply Board A3 Fuse Figure 5 18 a Turn unit upside down b Remove eight screws 32 two screws 33 and remove bottom cover 3 c Remove old fuse from power supply board A3 and replace with a new fuse P N 301 20258 d Reinstall b...

Страница 95: ...rned to their original location 5 8 1 1 Disassembly of Balancer Analyzer Assembly Figure 5 17 5 8 1 1 1 Digital Board A1 a Remove ten screws 32 and four screws 33 and remove bezel 4 b Fold back printer disk drive assembly so that it stands straight up on its side with keypad panel 1 lying flat on table as shown in Figure 5 16 NOTE Further disassembly is not necessary when changing EPROM s see Sect...

Страница 96: ...emove graphics module 24 from keypad panel 1 d Remove three spacers 41 and one D spacer 55 NOTE Take care to keep graphics module free of fingerprints dust etc 5 8 1 1 4 Heater EL Control Board A4 a Remove graphics module Section 5 8 1 1 3 b Disconnect five connectors A4J1 A4J5 from heater EL control board A4 c Remove four nuts 49 and one washer 42 and remove heater EL control board A4 from keypad...

Страница 97: ...Disassembly 8500C 8500C System Maintenance Manual 5 53 Figure 5 17 Balancer Analyzer Assembly Parts Breakdown ...

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Страница 99: ...1 27 3 J2 J6 J5 J3 J7 J4 10 9 13 53 2 J2 PAPER ADVANCE GEAR 49 15 8 14 30 4 PL 48 2 PL 13 13 13 17 PRINTER BOARD PAPER HOLDER BRACKET 16 FILE ILLUST5A DRW 34 5 3 PL 31 3 PL 6 3 PL 7 3 PL 43 2 PL 42 4 PL 29 2 PL 47 4 PL 42 2 PL 28 2 PL 43 2 PL 46 2 PL 17 2 PL 46 4 PL 43 4 PL 51 49 2 PL 32 8 PL 21 4 PL 36 4 PL FUSE ...

Страница 100: ...er bracket and remove paper roll and paper bar 13 13 c Disconnect connector 13 A1J3 from printer board d Remove two screws 29 two screws 43 and four washers 42 and remove printer assembly 13 with printer board attached from chassis 2 NOTE The printer board and printer assembly 13 must be replaced as a complete assembly 5 8 1 2 5 Harness Assembly Figure 5 19 The harness assembly consists of the par...

Страница 101: ... three connectors J1 J2 J3 from power supply board A2 b Remove four hex nuts 6 and two spacers 9 and remove power supply board A2 from chassis 11 5 8 2 4 Harness Assemblies Figure 5 21 The harness assemblies consist of the parts that remain in the chassis after the circuit boards have been removed ...

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Страница 103: ...Disassembly 8500C 8500C System Maintenance Manual 5 59 Figure 5 19 8500C C Harness Assembly Sheet 1 of 2 ...

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Страница 105: ...Disassembly 8500C 8500C System Maintenance Manual 5 61 Figure 5 19 8500C C Harness Assembly Sheet 2 of 2 ...

Страница 106: ...5 62 Chadwick Helmuth A Business Unit of Honeywell International Inc Chapter 5 Maintenance And Repair This page is intentionally left blank ...

Страница 107: ...assembly 8500C 8500C System Maintenance Manual 5 63 Figure 5 20 Signal Selector 8520C Parts Breakdown 5 2 J3 J2 J1 6 J1 J8 J6 J5 J4 J3 J2 19 FILE 8520CIPB DRW 11 8 12 7 13 9 10 18 5 7 25 26 27 7 7 22 FUSE ...

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Страница 109: ...Disassembly 8500C 8500C System Maintenance Manual 5 65 Figure 5 21 8520C Harness Assemblies Sheet 1 of 2 ...

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Страница 111: ...Disassembly 8500C 8500C System Maintenance Manual 5 67 Figure 5 21 8520C Harness Assemblies Sheet 2 of 2 ...

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Страница 113: ...4 40 x 5 spacers 22 on controller board A1 b Align pins on quad peak detector board A3 with socket on controller board A1 below and carefully connect the two c Secure quad peak detector board A3 with four 4 40 x 1 4 php cad screws 19 d Install bottom cover 12 secure with eighteen 4 40 x 3 8 pan php blk screws 5 and 4 std intl lck 260 washers 7 5 9 2 8500C C Reassembly 5 9 2 1 Reassembly of Printer...

Страница 114: ...arness assembly connector A3P2 to A5J4 4 Ribbon connector to A5J2 5 Printer board connector 13 A1P3 to A5J3 NOTE Connector A5J7 is unused c Connect A5 ribbon cable to disk drive 10 if not already connected 5 9 2 1 4 Power Supply Board A3 a Install power supply board A3 on chassis 2 and secure with two 4 std flt 315 washers 42 and four 4 40 nylon lock thin nuts 47 b Connect harness assembly connect...

Страница 115: ... on analog board A2 d Attach six connectors Figure 5 19 to digital board A1 in this order A1J10 A1J13 A1J3 A1J6 A1J5 and A1J12 e Attach connector pins on underside of digital board A1 to connector on graphics module 24 Make sure connectors mate properly with no bent pins Ensure that connector wires are not pinched f Attach connectors A1J7 and A1J4 to digital board A1 g Attach connector A2P1 to ana...

Страница 116: ...250V FAST 5x 03614 GDB2 5A 301 20258 5 17 A4 Heater EL Control Board 99866 10827 5 17 Fuse 2 5A 250V FAST 5x 03614 GDB2 5A 301 20258 5 18 A5 Distribution Board 99866 11160 5 15 U8 8500C EPROM Low Memory 99866 10927 X 5 15 U6 8500C EPROM Low Memory 99866 14820 X 5 15 U9 8500C EPROM High Memory 99866 10928 X 5 15 U9 8500C EPROM High Memory 99866 14821 X 5 17 1 8500C Keypad Panel 99866 11004 5 17 1 8...

Страница 117: ...asher Shoulder 4 Qty 10 04713 B51547F019 654 4SBA 5 18 21 Bumper Rubber Qty 4 76385 ZB 1160 MI 610 094 5 17 22 Sandoff 4 40 1 2 Nylon Hex Qty 2 83330 4306 660 3444 5 17 24 Graphics Module 8500C 99866 10828 5 17 24 Graphics Module 8500C 99866 14574 5 18 27 Tear Bar 99866 10997 5 17 5 18 28 Standoff 4 Clear Rnd 1 4 O D Qty 5 83330 8481 660 2424 5 18 29 Screw 4 40 X 3 16 Pan Php Cad Qty 2 96906 MS352...

Страница 118: ... Cad Qty 2 96906 MS51957 20 651 4537 5 17 45 Screw 4 40 X 3 8 Pan Php Blk Qty 4 96906 MS51957 15B 651 4523 5 17 46 Washer 4 Lock Split Ring qty 6 83330 5850 11 654 4SPA 5 18 47 Nut 4 40 Nylon Lock Thin Qty 4 39428 90633A005 654 45NT 5 18 48 Screw 4 40 X 1 2 Php Black Qty 2 96906 MS35216 16B 651 4524 5 17 5 18 49 Nut 4 40 Nylon Lock Standard Qty 13 39428 90631A005 652 45NS 5 18 50 Gasket 0N083 GS21...

Страница 119: ...Peak Detector Board 99866 12508 1 5 20 2 Filter Assy Dual 99866 10857A 5 21 Harness Assy PWR SIG 99866 11127 5 21 Harness Assy VEL MAG 99866 9689 5 20 5 Screw 4 40 X 3 8 Pan Php Blk Qty 94 96906 MS51957 15B 651 4523 5 20 6 Nut 4 40 Nylon Lock Standard Qty 12 39428 90631A005 652 45NS 5 20 7 Washer 4 Std Intl Lck 260 Qty 28 96906 MS35333 36 654 4SIA 5 20 8 Standoff 4 40 X 1 3 8 Hex 1 4 Qty 6 83330 1...

Страница 120: ... 5 20 19 Screw 4 40 X 1 4 Pan Php Cad Qty 6 96906 MS51957 13 651 4531 5 20 22 Spacer M F 4 40 x 5 Hex Qty 4 6R744 4534 440 B 12 660 1445 5 20 25 Nut Ring 14 w Stud Qty 2 04967 FSS7 1401 405 14Z5R 5 20 26 Nut Ring 10 w Stud Qty 12 04967 FSS7 1001 405 10Z5R 5 20 27 Nut Ring 8 w Stud Qty 4 04967 FSS7 801 405 08Z5R Table 5 16 8520C Signal Selector FIG NO REF NO COMPONET 1 2 3 4 5 6 7 Assy Level CAGE M...

Страница 121: ... South El Monte CA 91733 2511 626 443 1326 04967 Fastener Specialty 2435 109th St Grand Prairie TX 75050 95146 ALCO Electronic Products 1551 Osgood St North Andover MA 01845 1014 28520 Heyco Molded Products 750 Boulevard P O Box 160 Kenilworth NJ 07033 1721 96906 Military Standard Department of Defense Washington DC 39428 McMaster Carr Supply Co 600 County Line rd Elmhurst IL 60126 312 834 9600 99...

Страница 122: ...5 78 Chadwick Helmuth A Business Unit of Honeywell International Inc Chapter 5 Maintenance And Repair ...

Страница 123: ...tor and a connector for receiving commands from and transmitting selected signals to the 8500C C A 3 Theory of Operation A 3 1 A1 Connector Boards Instead of using a connector harness as the 8520C does the 8520C 36 uses four A1 connector boards to route signals to the multiplexer board A4 A 3 2 A4 Multiplexer Board Figure A 1 The multiplexer board routes any of 36 Velocimeter inputs to the 8500C C...

Страница 124: ...e using test equipment listed in Table 5 1 In addition you must fabricate a test cable to perform tests that do not use the nacelle harness For fabrication instructions see Section A 4 6 Testing 8520C 36 without Nacelle Harness Assembly PICKUP INPUT 1 PICKUP INPUT 2 PICKUP INPUT 3 PICKUP INPUT 4 4 1 MULTIPLEXER 4 1 MULTIPLEXER PICKUP SIGNAL TO 8500 DIGITAL BOARD 2 CHANNELS 2 CHANNELS A B FUNCTION ...

Страница 125: ...een magnetic pickup and screw to 04 in NOTE Make sure accelerometer cables are free to move so that accelerometer movement is not inhibited ACCELEROMETER 906 7569A ACCELEROMETER 906 7569A MAGNETIC PICKUP 3030 CALIBRATOR 11A POWER BALANCER A B C D 1 2 3 4 135M 12 STROBEX 8520C 36 SIGNAL SELECTOR Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N I MODEL 8500C D J P BALANCE TRACK SPE...

Страница 126: ... Key in 450 with numeric keys in BALANCE FREQUENCY field h On same line select last number called times factor with arrow keys i Key in x2 as new times factor j Select AUTO STOP field with arrow keys k Press CHANGE soft key to select MAN STOP l Select PHASE UNITS field with arrow keys m Press CHANGE soft key to select DEGREES n Select PICKUP field with arrow keys o Press CHANGE soft key to select ...

Страница 127: ...ad Press START key ae Verify that display indicates 1800 2 RPM 0 8 0 08 IPS af Press STOP key ag Press SETUP key ah Select INPUT field with arrow keys ai Key in 11 with numeric key for 7 TURBINE cable aj Press ENTER soft key ak Wait 10 seconds al Press START key am Verify that display indicates 1800 2 RPM 0 8 0 08 IPS an Press STOP key ao Set CAM RATE RPM switch on Calibrator 11A to 900 ap Press S...

Страница 128: ... 3 ADH as shown in Figure A 3 ay Press SETUP on 8500C C az Select INPUT field with arrow keys ba Key in 6 with numeric key for 2 RGB cable NOTE The correlation between C 130 nacelle harness cables and 8520C 36 channels is summarized in the wiring diagram in Figure A 12 bb Press ENTER soft key bc Wait 10 seconds bd Press START key be Verify that display indicates 900 1 RPM 0 4 0 04 IPS 275 10 ...

Страница 129: ... 11A POWER BALANCER A B C D 1 2 3 4 135M 12 STROBEX 8520C 36 SIGNAL SELECTOR Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE K Q F L R STATUS SETUP PRINT A SHOW HIDE B MORE KEYS C STOP W Z X START 1 4 3 6 G M S 7 H 2 N 5 8 T 0 V I O 9 U ANNOTATE 8500C BALANCER ANALYZER 11690 NACELLE HARNESS 5 12 13 20 21 2829 36 CABLE 10...

Страница 130: ...F COMP cable bs Press ENTER soft key bt Press START key bu Verify that display indicates 900 1 RPM 0 4 0 04 IPS 275 10 bv Press STOP key bw Press SETUP key bx Select INPUT field with arrow keys by Key in 9 with numeric key for 5 COORD cable bz Press ENTER soft key ca Wait 10 seconds cb Verify that display indicates 900 1 RPM 0 4 0 04 IPS 275 10 cc Press STOP key cd Disconnect cable 4 F COMP from V...

Страница 131: ...2 RGB CHANNEL 14 5 COORD CHANNEL 17 4 F COMP CHANNEL 16 1 PROP CHANNEL 13 cn Move cable 11517 to connector labeled 21 28 on 8520C 36 and move magnetic pickup cable 10808 to channel C on 8520C 36 Repeat steps f through cl using the following values PICKUP CHANNEL C 7 TURBINE CHANNEL 27 6 AFT COMP CHANNEL 26 3 ADH CHANNEL 23 2 RGB CHANNEL 22 5 COORD CHANNEL 25 4 F COMP CHANNEL 24 1 PROP CHANNEL 21 c...

Страница 132: ...erify that display indicates 900 1 RPM 0 4 0 04 IPS VELOCIMETER 7310 VELOCIMETER 7310 NOT USED BUT LEFT INSTALLED TO PREVENT IMBALANCE OF CALIBRATOR MAGNETIC PICKUP 3030 POWER SUPPLY 9100A CALIBRATOR 11A POWER BALANCER A B C D 1 2 3 4 135M 12 STROBEX 8520C 36 SIGNAL SELECTOR Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE ...

Страница 133: ... C settings are to be left as they were in Section A 4 3 3 Test Procedure C 130 Setup Perform Section 5 4 1 4 Spectrum Test A 4 3 5 8500C C 8520C 36 Track Test C 130 Setup NOTE The same test setup and 8500C C settings are to be left as they were in Section A 4 3 3 Test Procedure C 130 Setup Perform Section 5 4 1 5 Track Test A 4 4 8500C C 8520C 36 Balance Test for P 3 Setup This balance test is si...

Страница 134: ...9A MAGNETIC PICKUP 3030 POWER SUPPLY 9100A CALIBRATOR 11A POWER BALANCER A B C D 1 2 3 4 135M 12 STROBEX 8520C 36 SIGNAL SELECTOR Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE K Q F L R STATUS SETUP PRINT A SHOW HIDE B MORE KEYS C STOP W Z X START 1 4 3 6 G M S 7 H 2 N 5 8 T 0 V I O 9 U ANNOTATE 8500C BALANCER ANALYZER...

Страница 135: ...t key to select DEGREES n Select PICKUP field with arrow keys o Press CHANGE soft key to select PICKUP A p Select INPUT field with arrow keys q Key in 11 with numeric key for A1 nacelle harness cable NOTE The correlation between P 3 nacelle harness cables and 8520C 36 channels are shown in the wiring diagram in Figure A 13 r Press ENTER soft key s Wait 10 seconds t Press START key u Verify that di...

Страница 136: ...n 10 with numeric key for A2 nacelle harness cable aj Press ENTER soft key ak Wait 10 seconds al Press START key am Verify that display indicates 1800 2 RPM 0 8 0 08 IPS an Press STOP key ao Set CAM RATE RPM switch on Calibrator 11A to 900 ap Press SETUP key on 8500C C aq Key in 450 in BALANCE FREQUENCY field ar Key in x2 as times factor as Press ENTER soft key at Wait 10 seconds au Press START ke...

Страница 137: ...00A CALIBRATOR 11A POWER BALANCER A B C D 1 2 3 4 135M 12 STROBEX 8520C 36 SIGNAL SELECTOR Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE K Q F L R STATUS SETUP PRINT A SHOW HIDE B MORE KEYS C STOP W Z X START 1 4 3 6 G M S 7 H 2 N 5 8 T 0 V I O 9 U ANNOTATE 8500C BALANCER ANALYZER 14440 NACELLE HARNESS 5 12 13 20 21 28...

Страница 138: ... display indicates 900 1 RPM 0 4 0 04 IPS 275 10 bn Press STOP key bo Disconnect cables 2 AFT G B and 3 ENG ACC from Velocimeters and connect 5 ENG COOD and 4 FWD COMP cables bp Press SETUP on 8500C C bq Select INPUT field with arrow keys br Key in 8 with numeric key for 4 FWD COMP cable bs Press ENTER soft key bt Press START key bu Verify that display indicates 900 1 RPM 0 4 0 04 IPS 275 10 bv Pr...

Страница 139: ...tor labeled 13 20 on 8520C 36 and move magnetic pickup cable 10808 to channel B on 8520C 36 Repeat Steps f through cl but when the steps call for you to enter pickup and channel information in the setup screen substitute the following values PICKUP CHANNEL S B A1 CHANNEL 19 A2 CHANNEL 18 3 ENG ACC CHANNEL 15 2 AFT G B CHANNEL 14 5 ENG COOD CHANNEL 17 4 FWD COMP CHANNEL 16 1 PROP CHANNEL 13 cn Move...

Страница 140: ... test the 8520C 36 single channel connectors make connections as shown in Figure A 4 cq Press SETUP cr Key in the following values PICKUP CHANNEL A INPUT CHANNEL 1 cs Press ENTER soft key ct Wait 10 seconds and press START key cu Verify that display indicates 900 1 RPM 0 4 0 04 IPS 275 10 cv Press STOP key cw Move magnetic pickup cable P N 10808 to channel B and Velo cable P N 11210 to channel 2 o...

Страница 141: ...setup and 8500C C settings are to be left as they were in Section A 4 4 3 Test Procedure P 3 Setup Perform test procedure in Section 5 4 1 4 Spectrum Test A 4 4 5 8500C C 8520C 36 Track Test P 3 Setup NOTE The same test setup and 8500C C settings are to be left as they were in Section A 4 4 3 Test Procedure P 3 Setup Perform test procedure in Section 5 4 1 5 Track Test A 4 5 8500C C 8520C 36 Spect...

Страница 142: ...ure A 8 Figure A 9 shows where each channel is located on the 8520C 36 connectors To use the cable it is a CABLE 10813 FILE SPEC 36C DRW SIGNAL GENERATOR HP 8904A SPECTRUM ANALYZER HP 3561A CABLE 10811 SIGNAL INPUT SIGNAL OUT BNC T CONNECTOR Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N I A MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE K Q F L R STATUS SETUP PRINT...

Страница 143: ... into the appropriate hole in the 8520C 36 channel connector insert the ground test clip pin into the P hole in the same connector In this manner you can use a signal generator to simulate signals or perform the calibration tests in Section 5 5 Figure A 8 8520C 36 Test Cable Schematic 8520C 36 Test Cable Test Clip to BNC SHIELD RG 58 Coax Cable FILENAME TESTC36B DRW RED CLIP SIGNAL BLACK CLIP P LA...

Страница 144: ...P 13 20 CHANNEL 18 A B C D E F G H J K L M N R P 13 20 CHANNEL 19 A B C D E F G H J K L M N R P 13 20 CHANNEL 20 A B C D E F G H J K L M N R P 21 28 CHANNEL 21 A B C D E F G H J K L M N R P 21 28 CHANNEL 22 A B C D E F G H J K L M N R P 21 28 CHANNEL 23 A B C D E F G H J K L M N R P 21 28 CHANNEL 24 A B C D E F G H J K L M N R P 21 28 CHANNEL 25 A B C D E F G H J K L M N R P 21 28 CHANNEL 26 A B C...

Страница 145: ... board from chassis 11 A 4 7 3 Connector Boards A1 a Remove forty eight screws 3 and discard Remove eight nut rings 26 27 and four connector boards A1 NOTE Nut ring 25 remains attached to connector board A 4 7 4 Dual Filter Assy and Cable Harnesses a Remove four screws 3 and washers 7 from filter 2 and eight screws 3 from OUTPUT and DC POWER connectors harness A 4 7 5 Power Supply Board A2 a Disco...

Страница 146: ...11 A 4 8 4 Mux Board A4 a Make sure Mux board A4 has six 4 shoulder washers wedged into its holes and connect four connectors J1 J2 J3 J4 to Mux board b Align Mux board with hexagonal posts in chassis c Place six 4 25 o d spacers 9 and six flat nylon washers 30 on top of Mux board holes temporarily hold in place with spare wires or the like A 4 8 5 Controller Board A3 a Place controller board A3 o...

Страница 147: ...Manual A 25 Figure A 10 8520C 36 Signal Selector Parts Breakdown CHADWICK HELM UTH C h MODEL P N SE RIAL 5 9 23 not shown 20 19 6 FUSE 30 31 29 12 10 18 5 30 4 9 30 8 4 25 26 27 3 22 not shown 24 13 21 not shown 3 11 7 1 2 30 FILENAME 12034 DRW ...

Страница 148: ... 6 7 9 10 8 BLK RED WHT BLK WHT RED BLK RED RED LONG BLK SHORT J6 J3 J2 A2 POWER SUPPLY ASSY A1 CONTROLLER ASSY 1 20 J4 J4 20 1 1 20 J4 1 20 J4 A4 PCB ASSY MUX A3 PCB ASSY CONTROLLER A1 PCB ASSY CONNECTOR 4 PLACES CABLE ASSY OUTPUT POWER CABLE ASSY PWR SUPPLY FILTER CABLE ASSY PWR SUPPLY CONTRLR CABLE ASSY LED POWER RED LONG CABLE ASSY LED FILENAME 11518S2 DRW GRN WHT BLK WHT RED RED J3 J3 J3 J3 J...

Страница 149: ...RD 4 F COMP 3 ADH 2 RGB 1 PROP WHT RED BLK GRN PLUG END A3 J4 J8 D C A B 1 2 3 4 5 5 4 2 1 GRN BLK RED WHT 4 3 2 1 5 A3 J1 J2 P6 P7 WHT GRN BLU P8 P9 J1 J2 1 2 3 A B C TO 8520C 36 CHANNEL CH9 CH17 CH25 CH33 TO 8520C 36 CHANNEL CH8 CH16 CH24 CH32 TO 8520C 36 CHANNEL CH7 CH15 CH23 CH31 TO 8520C 36 CHANNEL CH6 CH14 CH22 CH30 TO 8520C 36 CHANNEL CH5 CH13 CH21 CH29 FILENAME 11690 DRW TO 8520C 36 CHANNE...

Страница 150: ... 7 6 5 4 3 2 1 WHT GRN BLK RED WHT GRN YEL ORN WHT RED BRN GRY VIO BLU J3 J9 WHT RED BLK GRN PLUG END A3 J1 J3 J7 J8 D C A B 1 2 3 4 5 5 4 2 1 GRN BLK RED WHT 4 3 2 1 5 A3 J5 J6 P6 P7 WHT GRN BLU P8 P9 J1 J2 1 2 3 A B C TO 8520C 36 CHANNELS CH5 CH13 CH21 CH29 TO 8520C 36 CHANNELS CH6 CH14 CH22 CH30 TO 8520C 36 CHANNELS CH7 CH15 CH23 CH31 TO 8520C 36 CHANNELS CH8 CH16 CH24 CH32 TO 8520C 36 CHANNELS...

Страница 151: ...aintenance Manual A 29 Figure A 14 Cable P N 11517 Schematic A B C D E F G H J K L M N R P BRN RED ORN YEL GRN BLU WHT BLK WHT RED BLK GRN BACKSHELL CLAMP ON SHIELD A B C D E F G H J K L M N R P P1 PINS P2 SOCKETS FILENAME 11517S DRW ...

Страница 152: ...A 250V FAST 5x 03614 GDB2 5A 301 20258 A 10 A4 Mux PCB Assy 99866 11678 A 10 2 Filter Assy Dual 99866 10857A A 10 3 Screw 4 40 X 3 8 Php Blk Qty 78 96906 MZ35216 14 651 4523 A 10 4 Washer Shoulder 4 Qty 13 04713 B51547F019 654 4SBA A 10 5 Screw 4 40 X 3 4 Pan Php Blk Qty 5 96906 MS35216 18B 651 4526 A 10 6 Nut 4 40 Nylon Lock Standard Qty 6 39428 90631A005 652 45NS A 10 7 Washer 4 Std Intl Lck 260...

Страница 153: ...67 A 10 A 11 23 Harness Assy Power Supply Filter 99866 11868 A 10 A 11 24 Harness Assy LED 99866 11978 A 10 25 Nut Ring 14 w Stud Qty 6 04967 FSS7 1401 405 14Z5R A 10 26 Nut Ring 10 w Stud Qty 4 04967 FSS7 1001 405 10Z5R A 10 27 Nut Ring 8 w Stud Qty 4 04967 FSS7 801 405 08Z5R A 10 29 Screw 4 40 x 7 8 Php Blk SS Qty 5 96906 MS35216 19B 651 4527 A 10 30 Washer Flat 116 x 250 x 031 Nylon Qty 12 5150...

Страница 154: ...A 32 Chadwick Helmuth A Business Unit of Honeywell International Inc Appendix A 8520C 36 Signal Selector ...

Страница 155: ...with keypad panel 1 lying flat on table as shown in Figure 5 16 c Reference Figure 5 19 Sheet 2 of 2 Locate 3 pin mta connector J3 P3 on heater EL control board A4 Move wire from pin 2 over to pin 3 Take care when pushing the wire down into the connector that the wire insulation is cut through to make actual contact with the connector d Close unit again watching for pinched connector wires e Insta...

Страница 156: ...B 2 Chadwick Helmuth A Business Unit of Honeywell International Inc Appendix B 8500C Heater Modification This page is intentionally left blank ...

Страница 157: ...80 phase difference on the 8500C C If you want to adjust phase shift when using a signal generator you must shift the vibration signal and not the magnetic pickup signal Figure C 1 Velocimeter and Magnetic Pickup Signal Phase Relationships FILE SINWAVD DRW MAG P U SQUARE WAVE SINEWAVE VIBRATION INPUT PHASE INTERVAL 0 MAG P U SQUARE WAVE PHASE INTERVAL SINEWAVE VIBRATION INPUT MAG P U SQUARE WAVE P...

Страница 158: ...C 2 Chadwick Helmuth A Business Unit of Honeywell International Inc Appendix C Chadwick Helmuth Phase Measurement Convention This page is intentionally left blank ...

Страница 159: ...d 8520C in the areas of physical description theory of operation and testing Disassembly reassembly instructions and a parts list are also included D 2 Leading Particulars Table D 1 8520CS Signal Selector Only Input Power Velocimeter signal input levels Input Impedance Accelerometer balanced differential output Frequency Response Magnetic pickup signal inputs Photocell input Dimensions Weight 28VD...

Страница 160: ...onnectors J1 and J2 The intent of these high density connectors is to simplify installation on permanently wired aircraft The top connector and its corresponding high density pins are wired in parallel and therefore should not be used at the same time D 4 2 A3 Controller Board The 8520CS controller board A3 is a modified 8520C controller board The modification is to allow the signal conditioning P...

Страница 161: ...00C units This section contains instructions to test the 8500C C system performance parameters If a test step fails refer to the Troubleshooting Guide in Section 5 6 to locate the faulty component The functional tests ensure that the instrument is operating properly and within specifications The functional test setups use as much as possible All the components transducers cables etc that are used ...

Страница 162: ... with the 8500C however the calibrator was designed to have at least two screws 180 degrees apart To simulate a second screw enter the actual rpm half the CAM RATE as the balance frequency and 2 as the times factor in the 8500C balance setup display For example if the CAM RATE is 900 enter 450 as the balance frequency and 2 as the times factor NOTE 11B users bypass mag pulse doubler and connect ma...

Страница 163: ... under 60 Hz light d Press SETUP key on 8500C C e Key in 900 with numberic keys in BALANCE FREQUENCY field NOTE To undo mistaken entries press the RESTORE soft key f On same line press right arrow key twice to select last number called time factor with arrow keys g Key in 2 as new times factor This entry now reads x2 h Select AUTO STOP field with arrow keys and press CHANGE soft key to select MAN ...

Страница 164: ...that display indicates example in Figure D 3 1800 2 RPM 0 8 0 08 IPS 275 10 aa Press STOP key bb Move 11210 cables to next Velocimeter Channel positions and cable 10808 to magnetic pickup channel position marked in Table D 2 cc Press SETUP on 8500C C dd Select PICKUP field with arrow keys ee Press CHANGE soft key to select pickup shown in Table D 2 ff Press INPUT field with arrow keys gg Key in ch...

Страница 165: ...n Any settings not mentioned must be left as they were in the previous test D 5 2 1 Test Setup a Connect equipment as shown if Figure D 4 NOTE Make sure calibrator Accelerometer cables are free to move so that Accelerometer movement is not inhibited D 5 2 2 Power Up Self Test b Hold down START key on 8500C C and turn on power supply NOTE This erases all memory in 8500C C c Wait until Power Up Self...

Страница 166: ...er to enter half these rates in 8500C C setup screen when called for in the following steps 10494 10494 10200 PHOTOPROBE NOTE The calibrator must have no more than one screw installed on its rotor disk when used with the 8500C however the calibrator was designed to have at least two screws 180 degrees apart To simulate a second screw enter the actual rpm half the CAM RATE as the balance frequency ...

Страница 167: ... for charge amplifier programming calibration x Press STOP key y Press SETUP key z Select INPUT field with arrow keys aa Key in 6 with numeric key bb Press ENTER soft key cc Wait 10 seconds dd Press START key ee Verify that final results display indicates 1800 2 RPM 0 8 0 10 IPS ff Press STOP key gg Move 10700 cables to High Temp Accelerometer 9 and 12 channel positions and move cable 14883 to pho...

Страница 168: ...back on a flat surface b Place FasTrak on its side with the pin connector facing to the right The window should be facing the calibrator approximately six inches away c Set CAM RATE RPM switch to 900 d Set MOTOR switch to ON e Adjust pot next to 900 CAM RATE switch position until 2nd ring from outside on rotor disk appears frozen in place under 60 Hz light 2 f Press BALANCE key on 8500C C g Press ...

Страница 169: ...he display Figure D 5 Functional Test Setup with Tracker MAG PICKUP 3030 NOTE The calibrator must have no more than one screw installed on its rotor disk when used with the 8500C however the calibrator was designed to have at least two screws 180 degrees apart To simulate a second screw enter the actual rpm half the CAM RATE as the balance frequency and 2 as the times factor in the 8500C balance s...

Страница 170: ...erlay D 6 Calibration Charge Converter Amplifiers The calibration of the four Charge Converter Amplifiers in the 8520CS on the Signal Conditioner Board may be checked and adjusted according to the following procedure D 6 1 Charge Test Fixture Build the following passive charge fixture Figure D 7 Charge Converter Test Fixture ...

Страница 171: ...djustments See Figure D 10 for DIP switch settings See Figure D 9 for potentiometer and DIP switch locations on the Signal Conditioner PC board 7 Calculate the required 8500C C ips reading 8 Set up the 8500C C for BALANCE In SETUP set the balance frequency to 100 hz and the balance type to STROBEX Also select MANUAL STOP 9 Press ENTER softkey wait 10 seconds then press START and adjust the 8520CS ...

Страница 172: ...ure D 8 Functional Test Setup Charge Converter Amplifier Calibration Table D 4 Charge Amplifier Adjustments Channel DIP Switch Potentiometer 3 S1 R73 6 S2 R92 9 S3 R111 12 S4 R130 Y BALANCER ANALYZER CHADWICK HELMUTH E L M O N T E C A L I F O R N I A MODEL 8500C D J P BALANCE TRACK SPECTRUM E HELP LOAD STORE K Q F L R STATUS SETUP PRINT A SHOW HIDE B MORE KEYS C STOP W Z X START 1 4 3 6 G M S 7 H ...

Страница 173: ...Calibration Charge Converter Amplifiers 8500C 8500C System Maintenance Manual D 15 Figure D 9 Charge Converter Adjustments On PC Board Figure D 10 Charge Amplifier DIP Switch Setting ...

Страница 174: ...ctors J1 J2 J3 from power supply board A2 b Remove four hex nuts 6 and two spacers 9 and remove power supply board A2 from chassis 11 D 7 1 3 Harness Asseblies The harness assemblies consist of the parts that remain in the chassis after the circuit boards have been removed D 7 2 Reassembly NOTE Harness dressing and routing are important to ensure proper operation and fit Follow original factory ro...

Страница 175: ...ctors Signal Conditioning Board J2 J4 J6 J8 J11 and two 2 pin connectors from the front panel LEDs Also connect the harness to the Contoller Board J5 and J8 Insure connectors are properly seated Use a small amount of RTV to secure the 4 harness connectors in place d Install bottom cover 12 secure with eighteen 4 40 x3 8 pan php blk screws 5 and 4 std intl lck 260 washers 7 ...

Страница 176: ...D 18 Chadwick Helmuth A Business Unit of Honeywell International Inc Appendix D 8520CS Signal Selector Figure D 11 8520CS Signal Selector Illustrated Parts Breakdown ...

Страница 177: ...NS 7 WASHERS 4 STD INT LOCK 28 99866 654 4SIA 8 STANDOFF 4 40 X 1 3 4 6 99866 660 14B4 9 SPACER 4 I D 25 O D 2 99866 660 2424 10 BUMPER RUBBER 4 99866 610 094 11 CHASSIS 8520CS EMI 1 99866 751 14868 12 COVER 8520CS EMI 1 99866 562 14867 13 LED GREEN PANEL MOUNT 2 99866 251 L502 14 WASHER HOLDER 4 6 99866 654 4SBA 15 SPACER 1 2 X 1 4 O D 6 99866 660 D444 16 TY WRAP 15 99866 660 T01 18 SCREW 10 32 X...

Страница 178: ...nit of Honeywell International Inc Appendix D 8520CS Signal Selector S1 SWITCH TOGGLE DPDT 6 1 99866 315 2212 31 HARNESS ASSY 8520CS 1 99866 802 14876 Table D 5 Bill Of Material For 8520CS REF NO COMPONENT QTY CAGE CODE MFG P N C H P N ...

Страница 179: ...Maintenance and Repair 8500C 8500C System Maintenance Manual D 21 Figure D 12 Wiring Diagram 8520CS Sheet 1 of 2 ...

Страница 180: ...D 22 Chadwick Helmuth A Business Unit of Honeywell International Inc Appendix D 8520CS Signal Selector This page is intentionally left blank ...

Страница 181: ...Maintenance and Repair 8500C 8500C System Maintenance Manual D 23 Figure D 12 Wiring Diagram 8520CS Sheet 2 of 2 ...

Страница 182: ...D 24 Chadwick Helmuth A Business Unit of Honeywell International Inc Appendix D 8520CS Signal Selector This page is intentionally left blank ...

Страница 183: ...sembly A 22 IPB A 25 P 3 test A 11 parts list A 30 reassembly A 23 test cable fabrication A 20 wiring diagram A 26 A B and A B 4 11 accessories 8500C C system 1 9 illustration 1 6 ADC 8500C C 4 3 8520C 4 13 Allison engines A 1 amplifier programmable gain 8500C C 4 3 amplitude frequency phase accuracy test 8500C C 5 10 8520C 5 14 problems 8520C 5 34 problems 8500C C 5 38 analog board 8500C C 1 3 4 ...

Страница 184: ...C 4 5 cold start 3 1 communications controller 8500C C 4 5 controller board 8520C 1 7 4 10 8520C 36 A 1 block diagram 8520C 4 11 converter time to frequency 8500C C 4 6 date and time problems 5 32 DC adapters 1 9 DFT 4 6 digital board 8500C C 1 2 8500C C 4 5 block diagram 4 7 diode bridge heater EL 4 8 disassembly 8500C C 5 48 8520C 5 54 8520C 36 A 23 disk drive 1 3 disk drive assembly 8500C C 4 1...

Страница 185: ... test 8500C C 5 12 problems 5 36 noise generator analog board 4 2 NVRAM 8500C C 4 6 operation basic 3 1 optical probe 1 8 overload detector 8500C C 4 3 P 3 nacelle harness wiring diagram A 28 P 3 8520C 36 test A 11 paper printer 1 9 parts list 8500C C 5 70 8520C 5 73 8520C 36 A 30 peak detect and hold 8520C 4 12 periodic inspection 8500C C system 5 3 phase shift signal generator output 5 11 phase ...

Страница 186: ... 7 static precautions 5 45 Strobex 1 9 T 56 A 1 tape retroreflective 1 9 test 8520C 36 Appendix A amplitude frequency phase accuracy 8500C C 5 10 test amplitude frequency phase accuracy 8520C 5 14 anti alias filter response 8500C C 5 12 calibration 8500C C 5 10 calibration 8520C 5 14 channel crosstalk 8520C 5 17 disk drive 5 9 functional 8500C C system 5 3 noise and spurious signals 8500C C 5 12 s...

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