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Telex AIRMAN 8+ Customer Maintenance Manual
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Telex AIRMAN 8+ Customer Maintenance Manual

Telex AIRMAN 8+ Customer Maintenance Manual

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AIRMAN 8+
AIRMAN8P‑0210 DOUBLE SIDE ANR HEADSET 2PJ,600 OHM |
AIRMAN8P‑0211 DOUBLE SIDE ANR HEADSET XLR5, 600 OHM |
AIRMAN8P‑0212 DOUBLE SIDE ANR HEADSET P5P, XLR5,600
OHM | AIRMAN8P‑0214 DOUBLE SIDE ANR HEADSET‑XLR5, 600
OHM
en
Customer Maintenance Manual

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Summary of Contents for Telex AIRMAN 8+

  • Page 1 AIRMAN 8+ AIRMAN8P‑0210 DOUBLE SIDE ANR HEADSET 2PJ,600 OHM | AIRMAN8P‑0211 DOUBLE SIDE ANR HEADSET XLR5, 600 OHM | AIRMAN8P‑0212 DOUBLE SIDE ANR HEADSET P5P, XLR5,600 OHM | AIRMAN8P‑0214 DOUBLE SIDE ANR HEADSET‑XLR5, 600 Customer Maintenance Manual...
  • Page 3 AIRMAN 8+ Table of contents | en Table of contents Record of revisions Purpose of manual Technical support Parts ordering Repairs Safety precautions Introduction Parts list and exploded view Exploded view Parts list Maintenance Recommended maintenance schedule Basic inspection 5.2.1 Physical inspection 5.2.2 Talk test...
  • Page 4 en | Record of revisions AIRMAN 8+ Record of revisions Revision No. Revision Date Change Description 07/2020 Created 12/2020 Added Item 31, 32, 33 to the parts list. Minor typo fixes 01/2021 Added Headband Pad and Holder for Airman 8+ to the exploded view and parts table 04/2022...
  • Page 5 When writing, include all information concerning problems and mail to: To find the proper address and phone number for your region, please reference https:// telex.com/aviation-solutions/contact-telex-aviation/. Parts ordering Replacement parts may be ordered from our parts department. When ordering, please include the following information: –...
  • Page 6 en | Purpose of manual AIRMAN 8+ Notice! Any material to be disposed of should be done according to local environmental laws. 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 7 Introduction General Description The Telex Airman 8+ is a lightweight noise-reducing headset designed specifically for optimizing pilot communications in commercial and business turbine aircraft. Building on the tradition of the Airman 850 and the Airman 8, Airman 8+ has improved durability, intelligibility, and comfort.
  • Page 8 en | Introduction AIRMAN 8+ Reference View Figure 3.1: Main Component Identification Headband Pad Headband Pad Holder Headset Gliders Ear Cushions Boom Rotator Windscreen / Microphone Cord with Strain Relief Boom 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 9 AIRMAN 8+ Introduction | en The Telex Airman 8+ Headset is approved for aircraft use under FAA TSO-C139A. The conditions and tests required for the TSO approval of this article are minimum performance standards. It is the responsibility of those installing this article, either on or within a specific type or class of aircraft, to determine that the aircraft installation conditions are within the TSO standards.
  • Page 10 en | Parts list and exploded view AIRMAN 8+ Parts list and exploded view Exploded view 32, 33 30, 31 24 & 34 2, 3, 4 Figure 4.1: Exploded View Parts list Item Part No. Description Model -0210 -0211 -0212 -0214 AIRMAN8P-0909 F01U382338 CARRYING...
  • Page 11 AIRMAN 8+ Parts list and exploded view | en Item Part No. Description Model -0210 -0211 -0212 -0214 AIRMAN7-9100 F01U393946 Windscreens Bulk 100pc Airman 850 / 7 / 8 / 8+ AIRMAN8P-0911 F01U395085 Headband pad and holder for Airman 8+ AIRMAN8P-0908 F01U382336 HEAD PAD...
  • Page 12 ESP-F01U401631 SPR F01U406428 PCBA, BOOM SIDE, AIRMAN 8+ P5P ESP-F01U414952 SPR F01U431987 PCBA, BOOM SIDE, AIRMAN 8P-0214 S-F01U342097 F01U342097 LABEL, TELEX ESP-F01U384604 SPR F01U383824 CORD UNIT, XLR, 5M 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 13 AIRMAN 8+ Parts list and exploded view | en Item Part No. Description Model -0210 -0211 -0212 -0214 ESP-F01U402172 SPR F01U406429 SPA CABLE ASSEMBLY, AIRMAN 8P P5P ESP-F01U379469 SPR F01U389975 SPEAKER ASSY, AIRMAN 8+ (including faceplate and seal) S-F01U344918 F01U344918 OVER HEAD CABLE S-F01U344922...
  • Page 14 en | Parts list and exploded view AIRMAN 8+ a.Not shown. b.Either part number is acceptable. c.Acoustic cloth is included as part of this item. d.The speaker assembly includes the speaker and the faceplate. 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 15 AIRMAN 8+ Maintenance | en Maintenance The Airman 8+ headset is designed so that ANR performance and boom microphone sensitivity can be adjusted as required to meet specification requirements. These headset adjustments are made in order to alter performance. All other maintenance requires replacement of parts, fixing open wires, or removing shorted wires.
  • Page 16 en | Maintenance AIRMAN 8+ Basic inspection Figure 5.1: Basic Inspection 5.2.1 Physical inspection Review all plastic parts for cracks or breaks To review plastic parts, do the following: – Note any parts which need to be replaced Review all cables for obvious signs of damage to the insulating materials To review cables, do the following: –...
  • Page 17 AIRMAN 8+ Maintenance | en 5.2.2 Talk test When performing a talk test, things to be aware of: – Note any unusual or unexpected noises, static, and oscillations. – Note any distorted audio. – Turn ANR on and note noise reduction of fans, ambient noise etc. –...
  • Page 18 en | Maintenance AIRMAN 8+ 5.3.2 Validate mic circuitry To validate the mic PCBA, do the following: Construct a test circuit. Connect the test circuit to the microphone plug of the headset. For more information, see Connectors. Apply an audio signal/excitation to the microphone. If audio signal is detected, the board is valid.
  • Page 19 AIRMAN 8+ Maintenance | en 5.3.5 Microphone total harmonic distortion (THD) test Calibrate the sound pressure to be 114 dB SPL at 6 mm from an artificial mouth. Measure the THD of the microphone placed at that location using the same test circuit. It meets the TSO spec when THD is less than 5% from 350 Hz to 6000 Hz.
  • Page 20 en | Maintenance AIRMAN 8+ 5.4.1 Speaker sensitivity and frequency response verification Notice! This headset was designed, tested, and approved to FAA TSO C139a. The TSO requires the headset meet the minimum performance specifications as defined in RTCA DO-214A. This document and specifications listed here reference the test procedures, product settings, and equipment used as defined in these standards.
  • Page 21 AIRMAN 8+ Maintenance | en ANR troubleshooting Notice! The ANR circuits must be powered to perform testing. For the Airman8P-0210, -211, and 0214, connect the headset to the microphone test circuit shown in section 5.3.2. The ANR circuitry for the Airman8P-0212 requires power to be applied to XLR pin #5 for the ANR to function.
  • Page 22 en | Maintenance AIRMAN 8+ Connect the main cable plugs to a test circuit or power as follows. – Refer to ANR troubleshooting, page 21 and Wiring Diagrams and Connectors, page 42 for wiring details. – Airman8P-0210 - Connect mic+ of circuit 5.3.2 to the PJ-068 connector ring; connect mic- of the circuit 5.3.2 to the PJ-068 connector sleeve.
  • Page 23 AIRMAN 8+ Maintenance | en Cleaning the headset and connectors Caution! Do not allow alcohol or any liquid to touch the speaker or microphone element directly. To clean the headset, do the following: Using a mild detergent with water and a soft towel, or isopropyl alcohol wipes, clean the plastic and metal headset parts.
  • Page 24 en | Maintenance AIRMAN 8+ 5.10 Replacing the windscreen The foam windscreen, once removed from the microphone, can be cleaned using low pressure air to blow contaminates off from the exterior. If low-pressure air does not provide effective results, the windscreen should be replaced. Notice! Do not use any liquid on the foam windscreen.
  • Page 25 AIRMAN 8+ Disassembly | en Disassembly The following procedure describes the complete disassembly of the Airman 8+ headset. Notice! The removal process requires the following steps to be followed in the order described. Assembly is the reversal of the disassembly procedure. Please take care when disassembling to note details that may be required in the reassembly process, such as the locations of disconnected wires.
  • Page 26 en | Disassembly AIRMAN 8+ Verify the replacement is acceptable by visually inspecting around the cushion before use. Headband pad and headband pad replacement The Airman headsets come with two styles of headpads, a low profile headpad as well as a thick, more cushioned headpad.
  • Page 27 AIRMAN 8+ Disassembly | en The thicker headpad is attached to its holder with Velcro To replace the headband pad, do the following: Grasp the edge of the headband pad. Figure 6.3: Removal of Thick Headpad from Holder Gently pull the headband pad away from the headpad holder. Align the new headband pad with the Velcro on headpad holder.
  • Page 28 en | Disassembly AIRMAN 8+ Figure 6.4: Installing New Headband Pad Firmly press the new headband pad into place. 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 29 AIRMAN 8+ Disassembly | en Remove the mic prefilter To remove the prefilter, do the following: Carefully pry the prefilter from the mic. Remove the yoke assembly from the headband assembly To remove the yoke assembly from the headband assembly, do the following: Use a fingernail to lift the bottom edge of the black plastic spacer.
  • Page 30 en | Disassembly AIRMAN 8+ Using a T-5 screwdriver, remove three screws (as shown). Remove the housing and the yoke/glider assembly. Using a T-5 screwdriver, remove two screws (as shown). Remove the PCBA. Using a soldering iron, carefully disconnect the wires from the speaker, overhead cord, boom mic assembly, and ANR mic solder terminals, as needed.
  • Page 31 AIRMAN 8+ Disassembly | en Notice! Take care to avoid touching the plastic housing with the soldering iron. Non-boom side disassembly To remove the speaker assembly and sleeve, do the following: Pushing the two retaining cams simultaneously on the speaker assembly, rotate the speaker faceplate approximately 15°...
  • Page 32 en | Disassembly AIRMAN 8+ Remove the housing and the yoke/glider assembly. Using a T-5 screwdriver, remove two screws (as shown). Remove the PCBA. Using a soldering iron, carefully disconnect the wires from the speaker and overhead cord, and boom mic solder terminals, as needed. 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 33 AIRMAN 8+ Assembly | en Assembly Boom side assembly To assemble the boom side assembly, do the following: Solder the overhead cord to the PCBA. Models -0210, -0211, -0212 Model -0214 Blue White Shield Black Table 7.1: Boom Side Overhead Cable Wiring Solder the cable assembly to the PCBA.
  • Page 34 en | Assembly AIRMAN 8+ Solder the main cord to the PCBA Airman8P-0210 Airman8P-0211 Airman8P-0212 Airman8P-0214 Yellow No connection Black Shield or Drain + Blue White No Conn. Table 7.3: Main Cord Wiring Route the speaker wires through the housing and solder to the PCBA. White Route the overhead cord and the headset cord through the corresponding grooves provided on the boom.
  • Page 35 AIRMAN 8+ Assembly | en Models -0210, -0211, 0212 Model -0214 Notice! The side with the deep grooves goes toward the speaker. 11. Place the housing on the boom mic assembly. 12. Make sure the overhead cord is in the correct slot and the jacket is fully inside the housing.
  • Page 36 en | Assembly AIRMAN 8+ Models -0210, -0211, -0212 Model -0214 13. Using a T-5 screwdriver, replace the three screws (as shown) to attach the yoke and housing to the PCBA. Models -0210, -0211, -0212 Model -0214 Position the overhead cord in the guide, and then align the knob of the faceplate toward the bottom.
  • Page 37 AIRMAN 8+ Assembly | en Carefully wind the overhead cord around the glider. Non-boom side assembly To assemble the non-boom side assembly, do the following: Solder the overhead cord to the PCBA. Models -0210, -0211, -0212 Model -0214 Blue White Shield Black Table 7.4: Non-boom Side Overhead Cable Wiring...
  • Page 38 en | Assembly AIRMAN 8+ Models -0210, -0211, -0212 Model -0214 1 Alignment posts for PCBA screw 2 Path for overhead cord Solder the wires to the speaker. Notice! Align the red wire with the polarity dot on the speaker (as shown) Models -0210, -0211, -0212 Model -0214 White...
  • Page 39 AIRMAN 8+ Assembly | en Notice! Take care to verify the orientation of the yoke, because it does not rotate 360°. Place the cover on the housing. Using a T-5 screwdriver, replace the three screws (as shown) to attach the yoke and housing to the PCBA.
  • Page 40 en | Assembly AIRMAN 8+ Attach the prefilter To attach the prefilter, do the following Carefully clip the prefilter to the mic. Replace the yoke assembly on the headband assembly To replace the yoke assembly on the headband assembly, do the following: Slide the yoke assembly onto the headband.
  • Page 41 AIRMAN 8+ Assembly | en Reinstall the headband cover To reinstall the headband cover, do the following: Take care to verify the overhead cord lays between the guides. Ensure the cover fully encloses around the headband at both sides. Bosch Security Systems, LLC 2024-11 | 07 | F.01U.387.060 Customer Maintenance Manual...
  • Page 42 en | Wiring Diagrams and Connectors AIRMAN 8+ Wiring Diagrams and Connectors Airman 8+ Series headsets are available with multiple connector styles depending on the application of use. All models utilize custom cables developed specifically for cockpit use. All connection points implement strain and bend relief features to provide long-term durability.
  • Page 43 AIRMAN 8+ Wiring Diagrams and Connectors | en Description Color Headphone Signal Yellow Headphone GND Black (-0214 ANR Power-, see note) Mic Power and Signal White (-0214 ANR Power+, see note) Mic Power and Signal Shield or Drain + Blue (-0214 ANR Power-, see note) ANR Power+ Table 8.4: 5-pin XLR Wiring Airman8P-0212, -0214...
  • Page 44 en | Wiring Diagrams and Connectors AIRMAN 8+ Figure 8.4: Airman 8P-0211 Wiring Diagram Figure 8.5: Airman8P-0212 Wiring Diagram 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 45 AIRMAN 8+ Wiring Diagrams and Connectors | en PCBA F01U414950 ITEM 49 NON-BOOM SIDE, BOTTOM POLARITY DOT PCBA F01U414950 ITEM 49 NON-BOOM SIDE, TOP WHITE SPEAKER NON-BOOM SIDE J5 J6 J2 J1 WIRING DIAGRAM F01U425841 POLARITY DOT CABLE ITEM 48 WIRING, XLR SHIELD SPEAKER BOOM SIDE...
  • Page 46 | Wiring Diagrams and Connectors AIRMAN 8+ 2024-11 | 07 | F.01U.387.060 Bosch Security Systems, LLC Customer Maintenance Manual...
  • Page 48 Bosch Security Systems, LLC 130 Perinton Parkway Fairport, NY 14450 www.telex.com © Bosch Security Systems, LLC, 2024 EU importer: Bosch Sicherheitssysteme GmbH Robert-Bosch-Platz 1 70839 Gerlingen Germany © Bosch Sicherheitssysteme GmbH, 2024 202411261804...

This manual is also suitable for:

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