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CLASS

DWG NO

273139

REVISIONS
REV

DESCRIPTION

CHECK

ENG

DATE

ECN-36327:UPDATE

FIGURES;

CHANGE NAME TO TTH, UPDATE
EARCUSHION SECTION

VAB AM

11/04

01A UPDATE TO INCLUDE TTH S2

07/10

01B UPDATED TTHS2 TT BATT. LIFE TO 240

HRS.

09/10

01C UPDATED TTHS2 VOLT. RANGE

07/11

01D

VARIOUS

UPDATES

10/11

APPLICABLE

DOCUMENTS:

DOC

LVL

DRAFTER

A. MANGIAMELI

DATE

02/05/04

FRAMINGHAM, MA 01701-9168

CHECKER

J. BROWN

02/27/04

DESCRIPTION

MANUAL, OPERATING &

ENGINEER

A. MANGIAMELI

02/05/04

MAINTENANCE (TTH & TTH Series 2)

RLS TO PROD

SIZE

FSCM

32108

CLASS

DWG NO.

273139

REV.

01D

SHT

1 OF 25

Содержание TriPort TTH

Страница 1: ...DATED TTHS2 TT BATT LIFE TO 240 HRS AM 09 10 01C UPDATED TTHS2 VOLT RANGE AM 07 11 01D VARIOUS UPDATES AM 10 11 APPLICABLE DOCUMENTS DOC LVL DRAFTER A MANGIAMELI DATE 02 05 04 FRAMINGHAM MA 01701 9168...

Страница 2: ...r the left or right earcup In addition to passive attenuation each earcup contains an independent ANR system The ANR system reduces background noise within each earcup The talk thru circuit TTC allows...

Страница 3: ...ration allows 2 way communications with loss of voltage input or talk through power 13 5 to 32 VDC 38 mA Peak except during turn on Fail safe operation allows 2 way communications with loss of voltage...

Страница 4: ...y has a three position push to talk PTT switch as well as a two position talk thru circuit TTC switch as shown in Figure 2 0b and 2 0c The PTT switch is mounted on the face of the control module and i...

Страница 5: ...vehicle intercom The OFF center position allows the user to listen only The Momentary down position allows the user to communicate on the vehicle intercom and the selected radio Please note that thes...

Страница 6: ...ercom channel or radio The latched position allows the user to communicate on the vehicle intercom The OFF center position allows the user to listen only The Momentary down position allows the user to...

Страница 7: ...n Function 1 2 3 4 5 6 7 Shield PTT Ground power and audio Boom mic Ground Left Right earcup audio Boom mic Signal Power Binaural Pin Function Shield Contact 1 2 3 4 5 6 7 Shield Right earcup audio PT...

Страница 8: ...CUPS END CONNECT HEADSET TO KNOWN WORKING INTERCOM RADIO REPLACE TTC BATTERY pg 14 IS FAULT STILL PRESENT IS FAULT STILL PRESENT SUBSTITUTE CABLE MICROPHONE ASSEMBLY WITH KNOWN WORKING ONE pg 13 REPLA...

Страница 9: ...m in Earcup Check for tears or excessively dirty Replace scrim Cables Check for cuts kinks or frayed area on cable Replace cable mic assy Connectors Check for dents or other physical damage Corrosion...

Страница 10: ...Unplug connector connecting the cable microphone assembly 2 to the jumper cable coming off the earcup printed circuit board and remove the cable microphone assembly b Replacement 1 Plug cable connect...

Страница 11: ...nside earcup between scrim 2 and earcushion and firmly pulling out Remove any excess tape residue from the earcup surface 2 Remove scrim 2 after earcushion 1 is removed b Replacement 1 Align scrim 2 a...

Страница 12: ...2 between thumb and forefinger and slide O ring 2 and windscreen 3 off microphone 1 2 Separate O ring 2 from windscreen 3 CAUTION When placing windscreen O ring on microphone be careful not to tear wi...

Страница 13: ...hex Allen type wrench remove screw 3 securing overhead strap 2 to earcup assembly 1 b Replacement Place screw 3 through opening in end of overhead strap 2 and use a hex Allen type wrench to secure to...

Страница 14: ...onnecting the cable microphone assembly 2 to the jumper cable coming off the earcup printed circuit board and remove the cable microphone assembly b Replacement 1 Plug cable connector from the cable m...

Страница 15: ...ver b TTH Series 2 Battery Removal and Replacement 1 Using flat tipped screwdriver loosen the captive screw on the battery cover and rotate to open the battery compartment Battery door is connected to...

Страница 16: ...ies 2 ONLY a Removal 1 Using a flat tipped screwdriver loosen the captive screw securing attachment clip to the control module and remove clip from the control module b Replacement and Adjustment 1 At...

Страница 17: ...p on the control module in the desired orientation Rotate the attachment clip 90 degrees in either direction lining up the square feature on the control module with the square hold in the attachment c...

Страница 18: ...1 Unplug connector connecting the cable microphone assembly 2 to the jumper cable coming off the earcup printed circuit board and remove the cable microphone assembly 2 Unplug the 3 pin connector con...

Страница 19: ...g 2 Plug 3 pin connector from the microphone assembly into the mating 3 pin connector on the cable assembly Ensure connectors are securely seated 3 Plug cable connector from the cable microphone assem...

Страница 20: ...Framingham MA 01701 9168 SIZE A FSCM 32108 CLASS RF DWG NO 273139 SHEET 20 of 25 REV 01D Appendix A Additional Technical Information...

Страница 21: ...and potential 36V above ground is applied to the power line The pulse repetition rate shall not exceed 1 pulse every 10ms Ripple and noise The headset shall operate through and reject power supply rip...

Страница 22: ...Functional Characteristics TTH TTH Series 2 Active ANR 3 Selectable Talk through 3 3 Powered Output Level 3 Powered Frequency Response 3 Inactive microphone preamplifier output 3 Not Applicable Unpow...

Страница 23: ...outs described in Section 3 0 of this document Input Impedance The headset shall not cause damage to the intercom audio circuits under any circumstances The audio input impedance of the headset assemb...

Страница 24: ...talk through circuit to permit monitoring of the ambient sound field and direction finding When mounted on a simulated real head fixture mannequin at 22o C 50 RH the TTC shall produce gain of 0 6dB w...

Страница 25: ...en swept from 300 Hz to 4500 Hz Talk Through Circuit TTC The headset shall incorporate a talk through circuit to permit monitoring of the ambient sound field and direction finding When mounted on a si...

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