Sennheiser HMD 46-3 Service Manual Download Page 23 | Manualshive

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Sennheiser HMD 46-3 Service Manual Download Page 23

HME 46-3, HMD 46-3

02/2008

7.7

Exploded view of the cap, microphone side

7.8

Spare part list of the cap, microphone side

FIG. ITEM

PART NUMBER

NOMENCLATURE

UNITS PER ASSY

10 087509

THREADED PIN

1

- ITEM NOT ILLUSTRATED

10

cap of

microphone side

microphone arm

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Summary of Contents for HMD 46-3

Page 1: ...res ActiveGard not HME 46 31 and HMD 46 31 Flip away earcup Automatic two piece headband Flexible microphone boom can be worn on either left or right hand side Single sided cable Comfortable wearing e...

Page 2: ...changes only approved components according to the current spare parts list are allowed For safety and certification reasons it is forbidden to alter the product without authorization Otherwise the per...

Page 3: ...3 Testing of the dynamic microphone at the headset with cable HMD 46 3 x only 12 5 2 4 Operational testing of the headset cables 12 5 2 5 Audio testing of the headset without cable 12 5 2 6 Testing o...

Page 4: ...mension 1 2 Cable type Complete cable length PTT 6 PTT 6 1 PTT L 1 85 m PTT LA 2 30 m E D 3PTT M 2 45 m 7 ATC L 2 00 m Cable type Length of Length of E D 3PTT M 0 80 m 1 60 m PTT LA 0 50 m 1 75 m PTT...

Page 5: ...___________________________ 200 ohms 2 3 Microphone of HMD 46 3 5 Type _______________________________ MD 46 413_5 ohms Transducer principle _____________________ dynamic noise compensating Frequency...

Page 6: ...nter 50 6 Remove the felt plate 40 7 Unsolder the leads of the cable TP1 to TP4 of the split headband 10 from the PCB see Printed circuit boards page 19 8 Unsolder the leads from the capsules TP8 TP9...

Page 7: ...ophone side page 24 1 Rotate the microphone arm 100 or 105 to the side position if necessary see figure below 2 Screw the threaded pin 10 of the cap module completely into the microphone arm fixing 3...

Page 8: ...ock diagram page 20 5 Install the felt plate 40 on the PCBs 20 of the system module 6 Turn the center 50 into the cap 20 or 25 7 Set the capsule with resonator 60 into the cap 20 or 25 8 Install the s...

Page 9: ...ded view HME 46 3 HMD 46 3 page 21 1 At the inside of the microphone arm fixing is a latch Firstly set this latch at the right socket position of the cap 20 2 Hook the microphone arm 100 or 105 into t...

Page 10: ...l testing of the pre polarized microphone at the headset with cable HME 46 3 x only A Audio testing see Cable connector s pin alignment page 14 and see Wiring diagrams page 15 et sqq 1 Connect the hea...

Page 11: ...urement mode 2 Connect the multimeter at the relevant pins of the cable connector see Cable connector s pin alignment page 14 or see Wiring diagrams page 15 et sqq Result The multimeter displays 200 o...

Page 12: ...s of the signal generator and the corresponding measurement results Figure 1 Operational test of the dynamic microphone Input signal of 1 kHz at TP3 and TP4 of the PCB Output level at TP8 and TP9 Audi...

Page 13: ...3 bridge orange blue red brown green n c white screen Solder side Connector system cable Audio Hi right Audio Lo right not connected Screen Audio Hi left Audio Lo left Microphone Hi Microphone Lo Bri...

Page 14: ...cted not connected screen E 3PTT M red or D 3PTT M orange blue white orange green screen blue red brown soldering side System cable white orange not connected brown green not connected yellow screen r...

Page 15: ...red blue brown screen white blue red orange green bridge black yellow soldering side Audio Hi left Audio Lo left PTT PTT bridge to pin 10 Audio Lo right Audio Hi right Microphone Hi Microphone Lo Scre...

Page 16: ...e white orange brown yellow green black screen red blue System cable white orange brown green yellow screen red blue white orange brown green yellow black screen red blue 515760 white orange brown gre...

Page 17: ...te brown red blue soldering side System cable white orange brown green yellow screen red blue white orange brown green yellow screen not connected red blue 515760 1 2 3 4 5 6 7 8 9 10 Audio Hi right A...

Page 18: ...ight Lo 300 mV 1 kHz 300 mV 1 kHz 510722 see rear side of the PCB PCB headphone solder side PCB no 510721 PCB headphone solder side PCB no 510722 The PCB layout is simular on both sides The PCB layout...

Page 19: ...HME 46 3 HMD 46 3 20 25 02 2008 6 6 Block diagram...

Page 20: ...ed views with spare part lists 7 1 Exploded view HME 46 3 HMD 46 3 120 100 10 threaded pin 20 90 Microphone side 80 70 40 110 50 PCB 60 cable with screws transducer Note The system module consists of...

Page 21: ...5 MICROPHONE ARM MKE 46 STANDARD 1 105 528136 MICROPHONE ARM MKE 46_152MV PA 1 110 093675 CABLE HOLDER 1 120 528106 LABEL 1 ITEM NOT ILLUSTRATED FIG ITEM PART NUMBER NOMENCLATURE UNITS PER ASSY 10 515...

Page 22: ...LY NOT MICROPHONE SIDE FOR HME D 46 3 1 20A 528155 PCB ASSEMBLY NOT MICROPHONE SIDE FOR HME D 46 31 WITHOUT ACTIVEGARD 1 30 515002 LEAD BROWN 1 40 515003 LEAD ORANGE 1 ITEM NOT ILLUSTRATED FIG ITEM PA...

Page 23: ...8 7 7 Exploded view of the cap microphone side 7 8 Spare part list of the cap microphone side FIG ITEM PART NUMBER NOMENCLATURE UNITS PER ASSY 10 087509 THREADED PIN 1 ITEM NOT ILLUSTRATED 10 cap of m...

Page 24: ...INSERT RD7 2X4 2 60 515649 PCB ASSY 1 70 528106 LABEL 1 90 515058 CABLE PTT 6 0 3 M 1 90 600730 CABLE PTT 6 1 1 0 M 1 90 515060 CABLE PTT L 0 3 M 1 90 600642 CABLE PTT LA 1 75 M 1 90 600667 CABLE E D...

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