Telex Airman 750 Maintenance & Overhaul Manual Download Page 24 | Manualshive

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24 Wiring / Connectors

Airman 750/760 CMM

3.1.3.3 Connector View for Catalog Number 64300-218

PJ-068: .206 in. (5.2mm) DIA.

FIGURE 12.

PJ-068 Connector, 750 Model -218

FIGURE 13.

PJ-068 Connector Wiring, 750 Model -218

3.1.3.4 Connector View for Catalog Number 64300-219

FIGURE 14.

XLR Connector, 750 Model -219

XLR Connector: Neutrik NC4FX or Equivalent

FIGURE 15.

XLR Connector Wiring, 750 Model -219

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Summary of Contents for Airman 750

Page 1: ...F 01U 311 532 Rev 09 Component Maintenance Manual August 2018 Airman 750 760 Headset and Headphone Maintenance Overhaul Manual for Airman 750 760 Headset Headphone...

Page 2: ...E 03 1995 F 04 1996 G 06 2000 7 07 2017 This document was completely rewritten and a Bosch part number F 01U 311 532 was assigned 8 09 2017 Updated revision on front cover Removed the Insertion Date...

Page 3: ...Attn Aircraft Product Support Mgr Telephone 800 898 6723 OPT 4 3 1 1 Email telexdispatchtechsupport us bosch com Parts Ordering Replacement parts may be ordered from our parts department When orderin...

Page 4: ...4 Airman 750 760...

Page 5: ...embly 17 CHAPTER 3 Wiring Connectors 19 3 1 Wiring Connectors 19 3 1 1 Airman 750 Wiring Diagrams 19 3 1 1 1 Catalog Numbers 64300 200 220 300 19 3 1 1 2 Catalog Number 64300 210 20 3 1 1 3 Catalog Nu...

Page 6: ...1 2 Microphone Sensitivity Adjustment 28 4 2 Circuit Board 200 300 Series Airman 750 29 4 2 1 Testing the Circuit Board Assembly 30 4 3 Speaker Validation 30 4 3 1 Speaker Sensitivity and Frequency R...

Page 7: ...man 750 Headset features a miniature noise canceling electret microphone element which provides superior hum rejection The microphone is mounted upon a boom which pivots 310 degrees for use on either...

Page 8: ...4 pin Female 64300 220 Double side headset 2x PJ 150 PJ 068 PJ 055 or equivalent 64300 300 Single side headset 2x PJ 300 PJ 068 PJ 055 or equivalent Airman 760 64400 200 Double side headphone PJ 150 P...

Page 9: ...220 Operating Voltage 8 16 Vdc 470 Ohm load Approximate Gross Weight 750 Single Sided 4oz 113g Double Sided 4 8oz 136g 760 3oz 85g Approximate Wearing Weight 750 Single Sided 2 3oz 65g Double Sided 3...

Page 10: ...10 Description Specifications Airman 750 760 CMM...

Page 11: ...Figure 1 on page 16 and the parts list Using the model number located on the headband assembly select the correct part number from Figure 2 1 3 Airman 750 Catalog Number 64300 200 205 208 210 212 218...

Page 12: ...018 HOUSING REAR right side no printing 1 800504000 or ESP F01U323856 HOUSING REAR right side printed 1 11 S 64318081 HEADBAND ASSEMBLY 1 12 64310000 GLIDER ASSEMBLY 2 13 64330500 GLIDER SPRING S F01U...

Page 13: ...t side 1 1 1 64308108 HOUSING Receiver ASSY PACKAGED left side 1 64308115 HOUSING Receiver ASSY PACKAGED left side 1 1 1 1 64308117 HOUSING Receiver ASSY PACKAGED left side 1 9 64308110 HOUSING Receiv...

Page 14: ...1 1 1 1 1 800456001 WINDSCREEN O RING 1 1 1 1 1 1 1 1 1 17a 580001003 OPTIONAL O RING 1 1 1 1 1 1 1 1 1 18 70531004 TEMPLE PLATE 1 20 70533000 TEMPLE PLATE FOAM PAD 1 21b 701246000 BOOM ROTATOR CAP 1...

Page 15: ...12mm away from the rear housing at this time 3 For the cord side using a soldering iron carefully disconnect the red and white internal wires from either the circuit board or the receiver assembly OR...

Page 16: ...ldering iron on the circuit board to carefully disconnect the two boom wires from J10 and J11 OR If disassembling an Airman 760 continue to next step 3 Pull back the black clasps on the side of the ci...

Page 17: ...some tension 3 Repeat steps 1 and 2 for dual sided headset models FIGURE 2 Circuit Board Receiver Cord Wiring NOTE For a complete list of wiring diagram information see Wiring Connectors on page 19 2...

Page 18: ...18 Parts List and Disassembly Assembly Airman 750 760 CMM...

Page 19: ...s 3 1 1 Airman 750 Wiring Diagrams NOTE On the speaker the positive terminal is usually indicate with a dot 3 1 1 1 Catalog Numbers 64300 200 220 300 with model 300 omit overhead cordage FIGURE 1 Airm...

Page 20: ...onnectors Airman 750 760 CMM 3 1 1 2 Catalog Number 64300 210 FIGURE 2 Airman 750 Headset Model 210 Wiring Diagram 3 1 1 3 Catalog Numbers 64300 205 208 FIGURE 3 Airman 750 Headset Models 205 208 Wiri...

Page 21: ...750 760 CMM Wiring Connectors 21 3 1 1 4 Catalog Number 64300 212 FIGURE 4 Airman 750 Headset Model 212 Wiring Diagram 3 1 1 5 Catalog Number 64300 218 FIGURE 5 Airman 750 Headset Model 218 Wiring Di...

Page 22: ...rman 750 760 CMM 3 1 1 6 Catalog Number 64300 219 FIGURE 6 Airman 750 Headset Model 219 Wiring Diagram 3 1 2 Airman 760 Wiring Diagrams 3 1 2 1 Catalog Number 64400 200 FIGURE 7 Airman 760 Headphone M...

Page 23: ...m DIA Receiver 250 in 6 4mm DIA FIGURE 8 PJ068 and PJ055 Connector 750 Model 200 212 300 FIGURE 9 PJ068 and PJ055 Connector Wiring 750 Model 200 212 300 3 1 3 2 Connector View for Catalog Number 64300...

Page 24: ...PJ 068 206 in 5 2mm DIA FIGURE 12 PJ 068 Connector 750 Model 218 FIGURE 13 PJ 068 Connector Wiring 750 Model 218 3 1 3 4 Connector View for Catalog Number 64300 219 FIGURE 14 XLR Connector 750 Model...

Page 25: ...ceiver 250 in 6 4mm DIA Right Angle FIGURE 16 PJ068 and PJ055 Connector 750 Model 220 FIGURE 17 PJ055 and PJ068 Connector Wiring 750 Model 220 3 1 4 Airman 760 Connectors 3 1 4 1 Connector View for Ca...

Page 26: ...26 Wiring Connectors Airman 750 760 CMM...

Page 27: ...Boom Microphone Sensitivity Check Test Circuit Airman 750 760 Models and Connector on page 8 3 Calibrate a lab microphone 4 Place the calibrated lab microphone 1 4 inch 6mm above an artificial mouth...

Page 28: ...114dB 316mVrms 82 34mVrms For 220 use 100dB 126mVrms 33 14mVrms 114dB 631mVrms 163 169mVrms 4 1 2 Microphone Sensitivity Adjustment Microphone sensitivity is adjusted by turning the gain adjustment co...

Page 29: ...adjust potentiometer R11 See Table 1 on page 28 4 2 Circuit Board 200 300 Series Airman 750 The same circuit board is used in all 200 and 300 Series versions of the Airman 750 Headset Circuit boards m...

Page 30: ...meet standards outlined in the specifications Earphone testing for the Airman 750 and 760 is done on a flat plate coupler For more information see Figure 5 To measure the speaker do the following 1 C...

Page 31: ...e of 350Hz to 3KHz NOTE The resultant curve should fit the limits as defined in Description Specifications on page 7 9 Repeat steps 1 through 8 with the second speaker if applicable 4 4 Mechanical Mai...

Page 32: ...32 Maintenance Airman 750 760 CMM...

Page 33: ...and internal Wiring Check Speaker s and internal wiring Check Amplifier Gain Adjust Receiver Inoperative X X X Microphone Inoperative X X X X Receiver Intermittent X X X Microphone Intermittent X X X...

Page 34: ...Bosch Security Systems Inc 12000 Portland Avenue South Burnsville MN 55337 U S A www boschcommunications com...

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