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Summary of Contents for GOODRICH Stormscope Series II
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This manual contains installation and operating instructions and recommended flightline maintenance information for the WX-950 Stormscope®. This information is supplemented and kept current by Change Notices and Service Bulletins published by Goodrich Avionics Systems. 009-10950-001 (Rev. C) Goodrich Avionics Systems, Inc. 11 October 2001 5353 52 Street, S.E.
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WX-950 Installation Manual LIST OF EFFECTIVE PAGES Dates of original and changed pages are: Original (Rev. 00) ......9 February 1996 Republished (Rev. B) ..... 23 April 1999 Republished (Rev. C)....11 October 2001 NOTE The portion of the text affected by the change is indicated by a vertical line in the outer margins of the page.
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This manual provides information intended for use by persons who, pursuant to current regulatory requirements, are qualified to install this equipment. Because installations vary depending on a particular aircraft, this manual is intended as a guideline. If further information is required, contact: Goodrich Avionics Systems Attn: Customer Service 5353 52nd Street, S.E.
WX-950 Installation Manual CHAPTER 1 GENERAL INFORMATION 1.1 INTRODUCTION This section contains a functional description of the Stormscope® model WX-950 Series II weather mapping system, outlines the main features of the system, and provides a functional block diagram. The basic WX-950 System (see table 1-1) consists of the following equipment: •...
WX-950 Installation Manual 1.2 FUNCTIONAL DESCRIPTION The WX-950 is a TSO certified thunderstorm mapping system designed for airborne use. The system maps electrical discharge activity 360 degrees around the aircraft to a distance of 200 nautical miles. Figure 1-1 is a simplified functional diagram that shows how the components are connected to each other and to other aircraft systems.
WX-950 Installation Manual 1.3 PHYSICAL DESCRIPTION The WX-950 System consists of two main components; Display/Processor (P/N 805-10950-001/002) and NY- 163 Antenna (P/N 805-10930-001/002). 1.3.1 Display/Processor The display/processor (see figure 1-2) houses the processing circuitry as well as the CRT display panel and the pilot’s operating controls.
WX-950 Installation Manual 1.3.2 Antenna The antenna (see figure 1-3) is a combined cross-loop and sense antenna. Connection is made through a single 10-pin connector (refer to paragraph 2.7.1). It is mounted to the aircraft using a doubler plate (see figure 1-4) supplied with the installation kit (see table 1-1).
Goodrich Avionics Systems to be free from defects in material and workmanship, under normal use as intended, for a period of 30 months from date of shipment by Goodrich Avionics Systems to an authorized facility, or 24 months from date of installation by an authorized facility, whichever occurs first.
This warranty shall not apply to any unit or part thereof which has not been installed or maintained in accordance with Goodrich Avionics Systems instructions, or has been repaired or altered in any way so as to adversely affect its performance or reliability, or which has been subjected to misuse, negligence or accident.
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± .02 .000 THREE PLACE DECIMALS ARE ±. 010 This section describes the installation of Stormscope Series II Model WX-950, in a step by step procedure. The installation activities in this section will be performed in the following order: •...
WX-950 Installation Manual WX-950 Test Cable P/N 803-10951-001. The bench test cable may be purchased directly from Goodrich Avionics System, or one may be fabricated (unterminated cable may be purchased from Electronic Cable Specialists - ECS P/N 312207) from the details provided in figure 2-1.
Each aircraft needs to be analyzed individually for the best antenna location. Before starting an installation in one of these types of aircraft, contact Goodrich Avionics Systems Field Service Engineering at (800) 453-0288 or (616) 949-6600. Rev. C...
This procedure will save installation time by avoiding the necessity for such things as antenna relocation. A WX-SM Skinmapper (Goodrich Avionics Systems P/N 78-8060-5859-6, with Mod 2 installed) must be used to verify the suitability of a selected antenna location before proceeding with the installation.
Goodrich Avionics Systems Customer Service Department at 1-800-253-9525 or 1-616-949-6600, for location assistance. NOTE Since Goodrich Avionics Systems has no control over airframe integrity or aircraft configuration, the authorized installer is responsible for insuring a noise free installation. If additional labor is required to correct an interference problem caused by another aircraft system or component, Goodrich Avionics Systems will not reimburse the installer for this labor under warranty.
WX-950 Installation Manual 2.5 ANTENNA AND DOUBLER INSTALLATION Figure 2-3 shows the mounting holes and dimensions for the antenna and doubler plate. Figure 2-3. Antenna Mounting Holes Use the antenna doubler plate as a template to mark hole locations on the aircraft skin. NOTE Ensure that the location selected allows adequate space inside the fuselage for the doubler plate to clear ribs and aircraft structure.
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WX-950 Installation Manual Figure 2-4. Antenna and Doubler Installation Seal around the entire perimeter of the antenna. NOTE The antenna should not be sealed until the sensor performance tests are complete. Rev. C...
2. The length and routing of the external cables must be carefully studied and planned before attempting installation of the equipment. 3. Use of any cable not meeting Goodrich Avionics Systems specifications voids all warranties. 4. All system cables are terminated at the mating connector assembly (see paragraph 2.8).
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WX-950 Installation Manual WX-950 BACKSHELL CONNECTOR BOARD HEADING INPUT CABLE NOT SUPPLIED SEE (SEE FIGURE 2-9) PARAGRAPH 2.6.3 FOR CABLE SPECIFICATIONS WHITE SYNC_X WHITE WHITE ORANGE SYNC_Y BLUE SYNC_Z TO AIRCRAFT SYNCHRO WHITE HDG FLAG + HEADING ORANGE ORANGE BLUE HDG FLAG - SYSTEM WHITE...
WX-950 Installation Manual 2.7.1 Antenna Cable Antenna cables, with the antenna connector pre-wired to one end, are available in 6, 12, 25, 50 and 75 ft. lengths (see table 1-2). To meet different space requirements the antenna connector can be ordered with either a straight or right-angle backshell (see figure 2-6).
NOTE Use of any cable not meeting Goodrich Avionics Systems specifications voids all warranties, and may be cause for termination of Authorized Installer status. Table 2-1 lists some U.S. vendors who sell the required cable by the foot.
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NOTE Every effort has been made to correctly identify the pin numbers and signal names used by the various manufacturers. However, Goodrich Avionics Systems cannot be responsible for changes made by others. Please consult the appropriate manufacturers documentation for the latest information.
WX-950 Installation Manual Table 2-3 Synchro Connections to Mating Connector SYNCHRO CONNECTION TO WX-950 MATING CONNECTOR BACKSHELL SIGNAL SYNC SYNC SYNC SYNC SYNC FLAG + FLAG - REF HI REF LO SUB-CABLE ORANGE ORANGE WHITE WHITE WHITE BLUE BLUE WIRE COLOR WHITE BLUE WHITE...
WX-950 Installation Manual 2.8 MATING CONNECTOR ASSEMBLY All system cables are terminated at the mating connector assembly (see figure 2-10). This connector assembly also contains jumpers to select system configuration. The locking mechanism has been designed to allow blind mating to the 25-pin D-sub-miniature connector on the back panel of the display/processor. Figure 2-10 Mating Connector When terminating wires observe specified color designations.
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WX-950 Installation Manual Table 2-5. Heading Input Connections SYNCHRO STEPPER WIRE COLOR BACKSHELL INPUT INPUT SUB-CABLE WIRE PIN NUMBER SYNC-X WHITE WHITE SYNC-Z WHITE BLUE SYNC-Y DRIVE MOTOR 1 WHITE ORANGE HDG FLAG + HDG FLAG + ORANGE WHITE HDG FLAG - HDG FLAG - ORANGE BLUE...
2-12. Figure 2-12. Instrument Panel Cutout and Mounting Holes Goodrich Avionics Systems recommends front-mounting the display/processor using 6-32 rivet-nuts to secure the unit to the instrument panel. For increased stability, in high-vibration environments, the display/processor can be secured to the instrument panel with a mooring plate (see figure 2-13).
WX-950 Installation Manual Figure 2-13. Display/Processor Installation The mating connector assembly has been designed for easy blind mating. Simply align the connector assembly with the guide pins at the rear of the display/processor and slide it in place. Lock by turning the thumbscrew in a clockwise direction.
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WX-950 Installation Manual CHAPTER 3 INSTALLATION CHECKOUT 3.1 INTRODUCTION This section contains instructions for post-installation checkout of the WX-950. Complete operating instructions for the WX-950 are provided in the Pilot’s Guide supplied with each system. NOTE The post-installation check procedures in this chapter assume familiarity with the set-up and operation of the WX-PA Portable Analyzer Kit (P/N 78-8060-5791-1).
WX-950 Installation Manual 3.3 POST INSTALLATION CHECKOUT This procedure will validate the installation and return to service of the WX-950. Rotate the OFF/BRT knob clockwise about 180 degrees. After approximately 15 seconds, the initialization screen (see figure 3-2) will be displayed. During initialization, the system runs a series of self-tests to ensure that all functions are operating properly.
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WX-950 Installation Manual If a fault is detected, an error message will be displayed indicating which test failed and which functions may be inoperative. If continued operation is possible, the message “ Press any key to continue” will appear (see figure 3-4).
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WX-950 Installation Manual After completion of the self-test, verify that the WX-950 is in the weather mapping mode (i.e., 360° Weather View at the 200 nmi range, see figure 3-6). Figure 3-6. 360° Weather View at 200 nmi Range Verify that clockwise rotation of the OFF/BRT knob increases display brightness and counter- clockwise rotation decreases brightness.
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WX-950 Installation Manual 12. Repeatedly key the aircraft communications radio microphone: If keying the transmitter does not cause strike data to appear on the CRT, proceed to step 13. If strike data appears on the CRT when the transmitter is keyed: •...
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WX-950 Installation Manual Figure 3-8. WX-PA Antenna Alignment Secure the WX-PA cable to the aircraft with the attached suction cup and route the cable to the cockpit. Connect the remaining end of the WX-PA antenna cable to the WX-PA. Power up the WX-PA. Power up the WX-950.
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WX-950 Installation Manual Observe the display to ensure the proper positioning of the test strikes, based on range and azimuth settings on the WX-PA. The strikes should be within 10 degrees of the selected azimuth and should plot at 60 nmi (½ 120 nmi). NOTE THE WX PA IS USED ONLY TO CHECK SYSTEM FUNCTIONS...
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WX-950 Installation Manual NOTE This test may be performed with the aircraft in flight or on the ground, as long as it is running at high RPM with all systems powered. An offending interference source can be isolated by shutting down one system at a time, then clearing the display and observing the noise monitor screen.
WX-950 Installation Manual CHAPTER 4 MAINTENANCE 4.1 INTRODUCTION This chapter contains general flightline maintenance procedures. These procedures are intended to aid in testing a complete, interwired WX-950 system and to isolate a fault to the display/processor, antenna, or cable. 4.2 CONTINUED AIRWORTHINESS No scheduled maintenance is required to ensure continued airworthiness.
System Data screens (see figures 4-2 through 4-4) contain a record of setup information. If you have problems with the WX-950, have this information available when contacting Goodrich Avionics Systems Customer Service. The Customer Service specialist must have adequate information to diagnose a problem.
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WX-950 Installation Manual The buttons perform the following operations in this mode: • EXIT - returns to the Service Menu (figure 4-1). • NEXT steps to the next page. • PREV steps to the previous page. • Softkey (B) is not used. Page 1 identifies (see figure 4-2): •...
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WX-950 Installation Manual Figure 4-3. System Data, Page 2 Page 3 displays (see figure 4-4): • Avionics Bus Voltage • Internal Voltage Values (+5.0 VDC, +15.0 VDC, and -15.0 VDC) • Processor Temperature (degrees C) Figure 4-4. System Data, Page 3 4.4.2 Fault Log The 20 most recent errors detected by the system self-test are saved in the Fault Log.
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WX-950 Installation Manual Figure 4-5. Fault Log Fault Log displays the results in the following format: ## HHHHH:MM where: Fault identifier code. HHHHH:MM Run-time (in hours and minutes) at which fault occurred. The total elapsed run-time is displayed in the lower middle portion of the screen (Run Time HHHHH:MM).
WX-950 Installation Manual Figure 4-6. CRT Test Pattern Press the EXIT key to return to the Service Menu. Softkeys (B), (C), and (D) are not used. 4.4.4 Noise Monitor The noise monitor screen (see figure 4-7) displays indications of electrical noise as well as lightning/ atmospheric electrical discharge activity that occurs within electrical range of the system.
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WX-950 Installation Manual 99999, and is reset using the clear button. It should be noted that noise can cause triggers but not result in a strike symbol. The noise monitor is displayed by selecting that option from the Service Menu (i.e., press SELECT with Noise Monitor high-lighted).
WX-950 Installation Manual The buttons perform the following operations in this mode: • EXIT - returns to the Service Menu (figure 4-1). • NOISE MON - returns to the Noise Monitor display (figure 4-7). • Softkeys (B) and (C) are not used. The test strike screen verifies the processing and plotting of electrical discharge data.
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WX-950 Installation Manual Table 4-1. Error Messages ERROR PROBABLE CAUSE CORRECTIVE ACTION ERROR 01. Processor Fault. Main processor Continued operation is not possible. Contact Customer Service. ERROR 02. Processor Fault. Video controller Continued operation is not possible. Contact Customer Service. ERROR 03.
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WX-950 Installation Manual Table 4-1. Error Messages (Continued) ERROR PROBABLE CAUSE CORRECTIVE ACTION ERROR 18. Processor Fault. Antenna in noisy location or faulty Weather mapping is inhibited. antenna. a. Press any key to continue. b. Check antenna wiring for opens and shorts.
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WX-950 Installation Manual Table 4-1. Error Messages (Continued) ERROR PROBABLE CAUSE CORRECTIVE ACTION ERROR 24. MIC KEY STUCK. Mic key (inhibit line) has been Weather mapping is inhibited. asserted for at least 60 seconds. a. Press any key to continue. b.
WX-950 Installation Manual 4.6 TROUBLESHOOTING ELECTRICAL NOISE The noise (interference) source can be isolated in two ways: by switching off one system at a time (preferably at the circuit breaker); or by running a system which cannot be switched off through all its operational modes.
WX-950 Installation Manual FUSE REPLACEMENT To replace the internal fuse (P/N 204-10021-001, Little Fuse Type 473,005): Place the unit on a workbench with an antistatic pad. Remove six screws that secure the housing to the chassis (see figure 4-9). Figure 4-9. Replacing the Fuse While holding the bezel with one hand, carefully pull the housing away from the rear of the chassis.
4.9 DISPOSITION OF FAILED ITEMS Return defective components to your authorized Goodrich Avionics Systems dealer or to:: Goodrich Avionics Systems Attn: Customer Service 5353 52nd Street, S.E.
WX-950 Installation Manual APPENDIX A WX-950 INTERFACE SIGNAL & CABLE CHARACTERISTICS INTRODUCTION This appendix defines the electrical characteristics of all input and output signals to the WX-950 System. Sufficient data is included to perform an electrical load analysis for the aircraft. The interface characteristics contained in this appendix are fully compatible with ARINC specifications where noted.
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WX-950 Installation Manual SIGNAL CHARACTERISTICS Antenna I/O (Continued) POWER ±12VDC ±5% regulated, less than 100mA. Power output from the display/processor to the antenna. It is used to power the active circuitry inside the antenna. CONNECTION J1-11 (-12V) to NY163, Pin F (Yellow Wire) J1-12 (+12V) to NY163, Pin D (Red Wire)
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WX-950 Installation Manual SIGNAL CHARACTERISTICS XYZ Synchro Input (Continued) H and C (high and low reference) FREQUENCY Min: 50 Hz Max: 1500 Hz VOLTAGE Min: 3.5 Max: 35 Vrms INPUT IMPEDANCE >50k Ohm CONNECTION J1-16 (SYNC_REF_HI) J1-3 (SYNC_REF_LO) CABLE See paragraph 2.7.3. Stepper Heading Input These connections will accept heading information from a King KCS55 (King KCS55)
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WX-950 Installation Manual SIGNAL CHARACTERISTICS Heading Valid Indicates that the heading source is providing valid heading information. NOTE The active polarity (i.e., HEADING FLAG (+) or HEADING FLAG (-)) is selected via the FLAG jumper located in the connector back- shell.
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WX-950 Installation Manual SIGNAL CHARACTERISTICS Power Input 11-32 VDC. The WX-950 is protected via an internal fuse (see para 4.6). For external circuit breaker protection, a 5 A circuit breaker is recommended for 14 V aircraft systems and a 3 A circuit breaker for 28 V systems. CONNECTION J1-8, &...
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