Ground Control Cabinet Service Manual
Contents
1. i of pauu F fe rla 1 y Item A and G jumpers must match for proper operation and communication between the controllers JP7 TO JP11 COMM PORT Set to RS485 with termination Jumper settings must match Item G jumpers SELECTION JUMPERS FOR J6 RS232 RS485 RS485 AND P2 with termination without termination e aaa Jumper configured for RS422 This port used for the communications to sign controller lr eee a a eee e n prems psw or addressing the roundcontoler r o EEEE ground controller for proper operation and communication between the controllers POWER Connects to Power Panel for DC Power CONNECTOR p L PA COMMPORT Connects to a local laptop or debug port 9 Ground Control Cabinet Service Manual PN 1507610801 Cabinet components Ground Controller PCB Assembly PN 10950221 M BAT MEMORY BACKUP 3V lithium battery Panasonic CR2032 or equivalent LED1 TOLED4 DIAGNOSTIC LEDS LED1 Controller Heartbeat LED2 Flashes when receiving communications from Central Local port P1 or P3 e LED3 Flashes when receiving communications from menu processor2. LED4 Flashes with communications to and from sign controller 3 po TF eter NS Used to program the controller with a rabbit programming cable PORT he faeces E_E_rvv us _ lt _ 10 BASE T connection 310 LCD HEADER HEADER iS ara RESET a Se to do a soft reset on the controller RESET SWITCH acca T P3 COMM PORT araa used for a local laptop top connection ee en eC Ground Control Cabinet Service Manual PN 1507610801 10 Cabinet components LCD Ground Controller LCD Ground Controller The function of this assembly is to provide an LCD interface for service personnel The ground controller is used in a passthrough mode to communicate to the sign controller i e all data that is sent to ethernet and RS232 is passed to the sign controller All responses from the sign controller are directed back to the appropriate port The ground controller communicates to the sign controller via NTCIP protocol The communications use the J6 port on the ground controller and the J3 port on the sign controller because these support RS422 Both sign and ground controller must be set to the same serial address See the table labelled DIP switch addressing on page 14 for the proper settings Rack mounted power strip PN 46000032 The rack mounted power strip with 12 NEMA 5 15R receptacles 2 front and 10 rear provides additional electrical outlets and surge protection for the addition of electrical components co
3. POWER SUPPLY SURGE ARRESTOR GROUND LUG 7 SURGE PROTECTOR Cabinet door with lock 5 32 Hex tool required to open the cabinet 10519024 Modem is configured for 9600 baud from the factory It is used to interface via PN 43312001 Telephone Surge Arrestor to the DOT supplied telephone line for control of the ground controller 40656304 Meanwell SP 200 12 switching power supply 12VDC output 30352001 10729911 30350018 30350019 Power indicator Voltage output adjustment AC power in GND Neutral and Hot connections Protect systems against transient surge events Connects to a customer supplied ground The keyboard is used to type commands into the ground controller Protects the RS422 transmit receive connection from a peak surge current of 10kA There are two surge protectors one in the sign and the other in the ground controller cabinet Pins 1 and 10 are the same point electrically 12VDC outputs FIELD SIDE Unprotected Pair 2 ELECTRONICS SIDE Protected Pair 2 Unprotected Pair if Protected Pair 1 Ground Control Cabinet Service Manual PN 1507610801 8 Cabinet components Ground Controller PCB Assembly PN 10950221 Ground Controller PCB Assembly PN 10950221 LLE D s iR ll i
4. Remove the two 6 32 X 0 5 screws securing the thermostat to the mounting plate at the top of the control center Discard old fan thermostat per manufacturers recommendations To install a replacement fan thermostat 1 N oa Pw Install the fan thermostat with the two previously removed 6 32 X 0 5 screws Do not over tighten 10 to 15inlbs Reinstall the fan thermostat AC connections There is no polarization to the thermostat connections Do not over tighten 8 to 10inlbs Set thermostat to 120 F Close control center Re apply AC to control center Verify function of fans Ground Control Cabinet Service Manual PN 1507610801 16 Maintenance and Service Heater Thermostat Replacement PN 41009071 Heater Thermostat Replacement PN 41009071 WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always disconnect power to unit prior to servicing Heaters are operated via a thermostat switch This is located on the side wall of the control cabinet The thermostat is adjustable from 10 F to 100 F Factory default is 10 F This switch is Grainger 2E816 or equivalent To remove a failed heater thermostat 1 2 3 4 a 6 Disconnect AC to control center Open the door to the control center Open heater thermostat Disconnect AC connections to heater thermostat Red and black are connected Blue is capped with a wire nut Remove the four 6 32 X 0
5. 5 screws securing the thermostat to the mounting plate Discard old heater thermostat per manufacturers recommendations To install a replacement heater thermostat 1 NOP W Install the heater thermostat with the four previously removed 6 32 X 0 5 screws Do not over tighten 10 to 15inlbs Reinstall the heater thermostat AC connections with the wire nuts provided with the replacement heater thermostat Verify the wire nut is installed on the blue wire Verify the black and red are installed as before Reinstall the cover on the thermostat Set thermostat to 10 F Close control center Re apply AC to control center Verify function of heater Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Checking and Replacing the Fan Filter Checking and Replacing the Fan Filter The first indication of excessively clogged fan filters is usually a gradual increase of temperature within the cabinet It is generally recommended to check and if filters are clogged replace filters every 6 12 months The fan filter is located in the door Measurements of the filter are 12 X 12 X 1 and can be replaced with Grainger 6B831 or equivalent To access and remove the fan filter 1 Disconnect AC to control center Open the doors to the control center The filter holder is located on the bottom of the door Turn the holding latches so they are out of the way of the filter Pull the filter out
6. address 9 7 64 8 128 4 Click Set to set the IP address each sign must have a unique IP address 5 After the IP address is set detach the computer from the controller board 6 Reset the controller and verify operation of controller Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Fan Replacement PN 46008028SP Fan Replacement PN 46008028SP WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always disconnect power to unit prior to servicing Fans are operated via a thermostat switch This is located on the top above the rear door The thermostat is adjustable from 80 F to 170 F The factory default is set at 120 F To remove failed fan 1 Oo Pond Disconnect AC to control center Open the doors to the control center Disconnect AC cord to fan Remove the four 6 32 X 2 0 screws and fan guard securing fan on top of enclosure Discard old fan per manufacturers recommendations To install replacement fan 1 2 oo Pw Place fan guard on replacement fan Install the fan and fan guard with the four previously removed 6 32 X 2 0 screws Do not over tighten 10 15inlbs Reinstall the AC cord to fan Close control center Re apply AC to control center Verify function of fans Heater Replacement PN 30676014SP WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always
7. and up to remove ao Pwr To install the replacement filter 1 Install the filter into the holder by inserting the bottom end first 2 Insert the filter fully into the holder and turn the filter holders down to secure it in place 3 Close control center 4 Re apply AC to control center Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Fluorescent Lamp Replacement Fluorescent Lamp Replacement WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always disconnect power to unit prior to servicing The fluorescent lighting tube is AMS 50600013SP Grainger 2V429 or equivalent The light fixture is AMS 5060001 2 Grainger 3GA54 or equivalent To remove the fluorescent lighting tube Disconnect AC to control center Open the rear door the door that hinges on the left to the control center The lighting tube is located at top of control center Twist and remove the failed tube Install the replacement tube by sliding in contact and twisting Pull gently on tube to verify that it is securely installed Re apply AC to control center Verify function of replacement lighting tube NOgPpon gt Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Transient Voltage Suppressors TVS PN 30352001SP2 Transient Voltage Suppressors TVS PN 30352001SP2 The TVS devices that are installed on the load center in t
8. electrostatic discharge To prevent this from happening be sure to follow the guidelines in Adaptive Tech Memo 00 0005 Preventing Electrostatic Discharge ESD Damage available on our Web site at http www adaptivedisplays com Equipment symbols Chassis ground Warnings cautions and notices Warnings cautions and notices are posted in appropriate locations throughout this manual Ground Control Cabinet Service Manual PN 1507610801 2 Introduction Lightning strike protection A control cabinet bonded to an earth ground has a means of dissipating the high voltage and current from a lightning strike The resistance of the grounding electrode must be as low as possible However damage can still occur to the cabinet s electronic equipment from lightning voltage transients Though some surge protection is incorporated into the control cabinet to protect a cabinet from high voltage lightning transients surge protectors need to be installed in accordance with NEC Articles 280 and 285 EMI compliance This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with installation guide
9. Ground Control Cabinet Service Manual P1507 12 336 Manual part number 1507610801 Revision date December 3 2009 ADAPTIVE Connecting people places and ideas Copyright 2009 Adaptive Micro Systems LLC All rights reserved Adaptive Micro Systems 7840 North 86th Street Milwaukee WI 53224 USA 414 357 2020 800 558 7022 414 357 2029 fax http www adaptivedisplays com Adaptive is a regisered trademark of Adaptive Micro Systems All other brand and product names are trademarks or registered trademarks of their respective companies December 3 2009 Contents Introduction sene A EEE E E E 2 PUDO SOS suna e E E E N A eee ee eee rer ere 2 Revisi n NISTO docienne a a a aa a a aE Ea 2 Related documentation eesesssrsesesssrsreesssersressrritrsssnnrurnessntntueatitntteentntutatatntennonnrnnneennnnnneae 2 Safety INTOM ANON se as aaea ae a a Ee da ise ates 2 Preventing electrostatic discharge ESD wiscscisssccsessicnetsrceecisstceceescencessceeceenineceeviensees 2 E uipm ent Symbols hci ae ake Catal Rate iatceeetautpialetth catia maiaa iaaiaee tai 2 Warnings Cautions and Notices c cecceecesceeeeeceeeceeceeeeeeeeeseeseeseeeseseeseeseaeeaeeaees 2 Lightning strike Protection earner mere ie errr tiene tarenr aaaea 3 EMI complant iiciin en eee ne A E A eee rere eee eee eee 3 Cabinet components sssssssssnnuussnnuussnnnnnnnnnnnunnnnnuunnnnnnannnnnnnn 4 GUICK Sta GUS raian a abe 4 OW COUN zas
10. amage to the exterior of the cabinet e Check for loose nuts bolts hinges doors and so on e Check the exterior electronics for foreign debris and general cleanliness e Check the exterior of the cabinet for general cleanliness Interior inspection e Check for any physical damage to the interior of the cabinet e Check for loose nuts bolts hinges doors and so on e Check the interior electronics for foreign debris and general cleanliness e Check the interior of the sign for general cleanliness e Check that the cabinet s filters and vents are clear of debris Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Ground Controller Board Replacement Ground Controller Board Replacement WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always disconnect power to unit prior to servicing gt To replace the ground controller board 1 Switch all control cabinet breakers to the OFF position except the breaker for the lights 2 Locate ground controller see Inside views on page 18 for the location 3 Set the DIP switches and jumpers JMP2 6 and JP7 11 on the replacement board to match the settings on the board being replaced At least one dip switch must be on for the controller to function properly Note The sign controller s and the ground controller s dip switch addresses must match for them to communicate Figure 1 Ground Control
11. andsisins 19 Transient Voltage Suppressors TVS PN 30352001 SP2 20 Rack Mounted Power Strip Replacement PN 46000032 cccseeceeseeeeeettteteteteeeeeeeaes 21 Front Access Full Matrix LED Sign Maintenance Manual pn 1507610801 1 Introduction Introduction Purpose This manual is intended as a guide for maintenance and repairs considered field serviceable This field service manual supplies technical information for service and technical personnel so that they can maintain the equipment at the assembly but not the internal component level Revision history Revision Date Notes 1507610801 revA November 12 2009 Initial Release Related documentation Technical documentation can be found at Adaptive s web site www adaptivedisplays com manuals Part Manual title Description 1507610701 28x72 Front Access Full Matrix LED This manual explains how to maintain and service a Sign Maintenance Manual 28x72 Front Access LED sign 15075051DR Control Cabinet Wiring Diagram Wiring details for control cabinet 15075052DR Sign Wiring Diagram Wiring details for sign 15075053DR LCD Pass Through Diagram Wiring details for ground controller 00 0005 Preventing Electrostatic Discharge Tech memo Damage Safety information Preventing electrostatic discharge ESD This equipment contains components that may be damaged by static electricity or
12. disconnect power to unit prior to servicing gt To replace a heater 1 2 3 a Disconnect AC to control cabinet Open the doors to the control cabinet Remove the cover from the heater using a phillips screw driver WARNING Do not touch the heater The surface is hot and may result in injury Remove the 1 4 20 bolts securing the heater to the mounting bracket Disconnect the two 10 32 screws connecting the heater to AC power Attach wiring to the new heater and secure the heater to the heating bracket with the 1 4 20 bolts Note Make sure the wiring does not come in contact with the heater or cover Wiring can be connected to any post on heater no polarization Reinstall cover with 6 32 screw previously removed Re apply AC to heater and verify operation Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Fan Thermostat Replacement PN 41009072 Fan Thermostat Replacement PN 41009072 WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always disconnect power to unit prior to servicing Fans are operated via a thermostat switch This is located on the top above the rear door The thermostat is adjustable from 80 F to 170 F Factory default is 120 F To remove a failed fan thermostat 1 2 3 4 5 Disconnect AC to control center Open the rear door to the control center Disconnect AC connections to fan thermostat
13. ends all equipment documentation manuals associated with the contents of the control cabinet is kept inside the cabinet Record all service maintenance performed on the control cabinet into the service log typically located in the document drawer WARNING Hazardous voltage may be present in cabinet Contact with high voltage may cause death or serious injury Always disconnect power to equipment prior to servicing Notice Ensure the cabinet door is completely closed and secured Ground Control Cabinet Service Manual PN 1507610801 Cabinet components Controller Block Diagram Controller Block Diagram Power Supply Fail Signals Door Switch Humidity Sensor Display Boards Light Sensors Breaker 2 Board J2 Ethernet P4 SIGN J5 Jd i p2 P1 Reay Hl i Controller ea T Thermostat j 1 J3 in i Relay 2 Heaters RS422 Transmit Receive i Ground Controller RS422 i i Surge i i RS422 H Surge Door i Switch i GROUND Ground P1 Central NTCIP Connection i CONTROLLER l H Typically Local Access Port P3 Controller J3 i CABINET for Laptop Computer Panel 5 Ground Control Cabinet Service Manual PN 1507610801 Cabinet components Control cabinet Control cabinet The NEMA 3R rated cabinet enclosure is equipped with fan and heater controls to maintain environmental conditions Located inside the cabinet is a GFCI receptacle fluorescent lamp surge arrestor a
14. eo e a EE E eseteteasersenaeeez 4 Controller Block Diagram Gene nee ne one ne ence te een ge ete eee eee en anew een 5 Control cabinete a oR E R eae 6 LCD Ground Controller Detailed View ic cc csecte eect sietoct tiandesntensesttancketnenctamnesee ratte deaituarieateas 7 Ground Controller PCB Assembly PN 10950221 ooo ceeeeeseeeseeteeeesseaeseeerseeetateetenseneeates 9 LCD Ground Controlle csiisece cies ccncssssencasiseccust n a eiia aiit 11 Rack mounted power strip PN 46000032 s sssssssssssssssrsrsrsrssrsrsrsrsrenrsrnrererenrsrnrenenesrenensnenes 11 Maintenance and Service sssssssssnnrsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 12 OV GIVIOW inmsa E R ieee 12 Physical Inspection seater ee eee ee 12 Ground Controller Board Replacement sass ccccscetest sc ccts cescatsatncareseettexecwsaneeucbesteeannsnactencley 13 Fan Replacement PN 46008 028SP sdicsuccvssenedesissedestestensenseceeminavedeapvereuisesuiagennaniedieancocses 15 Heater Replacement PN 30676014SP oo ccecseeteeeeseeeeeneeecaeeetseenseeecateetesaeeetateetesney 15 Fan Thermostat Replacement PN 41009072 0 eesecseeesseeeseteeseeeterseeecaeeesestenseneeateetenaes 16 Heater Thermostat Replacement PN 41009071 0 ceeeesseeseseeeeetetseeeceeetestetseaeeateetenaes 17 Checking and Replacing the Fan Filter cscsecsessecsecneeeeeeeeeeeecseeecseseeesseeesaseerseeeateesetas 18 Fluorescent Lamp Replacement sciecacececescucszescestenscdidaseceetuicanchs bi acdsettintaiceaslalvoasdi
15. he control cabinet are used to suppress voltage spikes and surges These TVS s have an LED indicator on them which indicates if they are operating or not If the LED is green and lit the TVS s are functioning as required If it is out the device has failed and should be replaced WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always disconnect power to unit prior to servicing To remove the TVS devices 1 Disconnect AC to control cabinet prior to servicing the TVS s Remove load center cover 2 Disconnect the two black and white wires from load center 3 Remove the TVS from load center by loosening nut 4 Dispose of per manufacturers recommendations To install a replacement TVS Remove the nut from the replacement TVS Install replacement TVS into the failed location on load center Tighten nut 1 4 turn past flush Label white wire with the GND label provided with replacement TVS Label one black wire with the NEUT label provided with replacement TVS Label one black wire with the HOT label provided with replacement TVS Install the white wire in ground bar in load center Strip wire 1 5 Install the HOT black wire onto the main lug of the load center Install the NEUT black wire into neutral bar of load center 10 Re Install the load center cover 11 Reapply AC power to the control cabinet 12 Verify that the green LED is lit on the TVS that was re
16. ler panel DIP switch settings occu ooo m elpe Notice Turning all dip switches off will cause i r the controller to lose its IP Subnet mask and Ethernet routing information DIP switch addressing Dipswitch Address er a a Ga 2 2 3 4 4 8 5 16 ON 6 32 Tagga 7 64 a ee 3 138 4 Disconnect all the cables from the controller board to be replaced 5 Remove the six screws see Figure 2 that hold the controller board to the panel Remove the controller board from the sign Figure 2 Locations of the screws securing the controller board to the panel 6 Fasten the new controller board to the ground controller plate 7 Reconnect all the cables to the new controller board 8 Apply power to the controller plate 13 Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Ground Controller Board Replacement gt If applicable change the IP address for the new ground controller board To assign an IP address the IP Set Utility program must be installed on the computer that will be communicating to the sign Contact Adaptive Technical Services at 800 558 7022 or 414 357 2020 if you do
17. lines may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Ground Control Cabinet Service Manual PN 1507610801 Cabinet components Quick Start Guide Cabinet components Quick Start Guide Sign Controller Surge Arrestor Located in Sign e Mounting the Ground Cabinet Mount cabinet to the pole using straps third party supplied part to oo the three mounting brackets al CONTROLLER S provided Electrical Connection Connect Control Center load center to 120 240V single phase 40A service Connect sign to dual pole 30A breaker Communications Connection Connect communications cabling CONNECTS TO between ground controller to sign GROUND controller surge arrestors per CONTROLLER diagram at right Ground controller dipswitches should be set the same Pass Through Ground as the dipswitches on the sign Controller controller for proper operation Located in Ground Cabinet Overview The control cabinet creates a secured on site centralized location for service personnel to easily access the sign s networking and operating equipment This section gives a brief description on each individual component in the control cabinet and how to field replace each item Note Adaptive recomm
18. nd LCD controller with terminal lt Fan Thermostat Fluorescent lamp located inside top of cabinet Cabinet door s locking arm sa i LCD display LCD Controller w keyboard pi 1 Heater control GFCI outlet a eer Ki i Filter Qa D f i not installed in view Rack Mounted Power Strip Heater Load Center Document Drawer Ground Control Cabinet Service Manual PN 1507610801 Cabinet components LCD Ground Controller Detailed View LCD Ground Controller Detailed View The ground controller is password protected Contact Doug Spencer Oregon DOT for login credentials D a GROUND CONTROL CABINET D 19 rack mounted ground controller cabinet ETHERNET SURGE 1507101201 Protects an Ethernet data port from damaging surges SUPPRESSOR conjunction with the sign controller board to control sign operation Refer to wiring diagram for the proper firmware part number to be loaded into this assembly LCD MODULE SCREEN 15009308 240 x 64 pixel LCD display GROUND CONTROLLER 10950221 The ground controller is connected to the NTCIP network and works in 7 Ground Control Cabinet Service Manual PN 1507610801 Cabinet components LCD Ground Controller Detailed View MODEM
19. not have this program Note If the IP address on the ground controller is changed the ground controller IP address must be changed to match the new address 1 Using a null modem cable connect a laptop computer to the controller board at P3 next to the Reset button See Ground Controller PCB Assembly PN 10950221 on page 9 for the P3 location 2 Open IP Set Utility program select Start gt Programs gt IPSetUtility gt IP Set Utility 3 Enter the appropriate information in the P Set Utility window See Figure 3 Note If the controller is operational LED 1 is normally flashing use Get to verify if the sign s IP address can be retrieved Figure 3 Setting the IP address for the controller Important Verify that the device address matches the controller address on the SW1 dip switch MA Progam About Settings Get retrieves IP information Address Response T mec Seconds from the sign cometi p g IP Senegs Set assigns IP information to M ez qi i i ie sign Mohie kiamaion a Get Module Info retrieves information about the sign The status bar displays important Gat Madde irto information about the status of the information being assigned to vr retrieved from the sign DIP switch addressing DIP switch positions Equivalent decimal values 1 1 2 2 3 4 Example 4 8 If SW1 has position 1 F and position 4 on 5 then it is set to 6 32
20. ntained inside the control cabinet The power strip features front panel LED status indicators lighted ON OFF switch and a 15 amp circuit breaker Bld t ON OFF lighted power switch with transparent locking cover Rack mounting Front Status LEDs 15 amp circuit AC Power Rear bracket receptacles breaker cord receptacles Ground Control Cabinet Service Manual PN 1507610801 Maintenance and Service Overview Maintenance and Service Overview The following parts can be serviced and maintained as needed Part Suggested Interval Page Ground Controller 6 months 13 Fan 6 months 15 Heater 6 months 15 Fan Thermostat 6 months 16 Heater Thermostat 6 months 17 Fan Filter 6 months 18 Fluorescent Light 6 months 19 Transient Voltage Suppressors TVS 6 months 20 Rack Mounted Power Strip 6 months 21 WARNING Hazardous voltage Contact with high voltage may cause death or serious injury Always disconnect power to unit prior to servicing WARNING Failure to properly ground the control cabinet could result in elevated voltage from lightning entering the cabinet seeking a path to earth The high voltage can result in electric shock fires and the destruction of the cabinet from lightning Physical Inspection A physical inspection of the cabinet s exterior and interior should be performed every 6 months Exterior inspection e Check for any physical d
21. placed SP ONnNoanrwnr a Ground Control Cabinet Service Manual PN 1507610801 20 Maintenance and Service Rack Mounted Power Strip Replacement PN 46000032 Rack Mounted Power Strip Replacement PN 46000032 WARNING Hazardous voltage Contact with high voltage may cause serious injury or death Always disconnect power to unit prior to servicing To remove the rack mounted power strip 1 All components that are plugged into the power strip must be turned off before the components are unplugged from the power strip 2 Disconnect all cables connected to the rack mounted power strip 3 Disconnect AC to ground cabinet 4 Disconnect from breaker 5 Dispose of the defective power strip according to the manufacturer s guidelines To install the replacement rack mounted power strip 1 Mount replacement power strip in location of failed strip 2 Plug in all component power cords that were previously unplugged from the power strip 3 Strip 12 inches of jacket and remove power cable connector 4 Wire into breaker as shown in wiring diagram for ground cabinet 21 Ground Control Cabinet Service Manual PN 1507610801
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