GN ReSound as Metrix MX70-D User manual

GN ReSound as
Global Technical Operations
gto.gnresound.com
Lautrupbjerg 9 • DK-2750 Ballerup • Denmark
E-mail: [email protected]
Technical Manual
ReSound Metrix
MX70-D/DI/DV/DVI/
MX80-DVI BTE

Page 2 of 18
Doc. no. 0072930 rev. F
Part lists......................................................................................................................... 3-10
Electronic module assembly.........................................................................................11-12
On-off mechanism .............................................................................................................13
Final assembly............................................................................................................. 14-15
Replacement of microphones............................................................................................16
Test.............................................................................................................................. 17-18
Amplier assembly ...................................................................................................... 22-23
Subject Page
Table of contents

Page 3 of 18
Doc. no. 0072930 rev. F
Part list - Exploded view (the model shown is MX70-DVI)
Batt. door complete
PCB
Front mic.
Back mic.
Suspensions
Pins Listening coil VC
Rubber pads
Batt.springs
Socket
Push-button
Socket holder
complete
Socket holder
ID-part
Rec. Module
Electronic housing
PB cover
On/off spring
Child lock

Page 4 of 18
Doc. no. 0072930 rev. F
Item Part No.
Service PCB C3.0, MX70/MX80 15429200
Batt. spring kit MX70 (+/-) 15429300
Socket holder compl MX70/MX80 15429400
Rubber pads 15456700
Microphone EM4368-C54 10128601
Ear hook lters 0414-469
On/off Spring 15168400
ID part, with serial no. 15437400
Push-button 15327000
Programming socket CS44 15327100
Listening coil Y29-36-FHM 3122 150 74541
Colour marker, red 15665800
Colour marker, blue 15665801
Child lock, anthracite 15167602
Service tool 15506500
Pin, 0.5 x 4.40, for PB cover 15156000
Pin, 0.6 x 7.70, for batt. 15167700
Pin, 0.6 x 5.20, front 15167900
Pin, 0.6 x 8.50, rear 15168000
Push-button cover Part No.
Platinum 15155900
Light blonde 15155901
Medium blonde 15155902
Dark blonde 15155903
Dark brown 15155904
Beige 15155905
Anthracite 15155906
Marble grey 15155907
Black 15155908
Red 15155911
Blue 15155912
Green 15155913
Light grey 15155914
Grey2 15155915
Orange 15155917
Red 15155918
Green 15155919
Blue 15155920
Purple 15155921
Part list
Volume control Part No.
Platinum 16547100
Light blonde 16547101
Medium blonde 16547102
Dark blonde 16547103
Dark brown 16547104
Anthracite 16547106
Black 16547108
Grey1 16547109
Beige 16547110
Red 16547111
Blue 16547112
Green 16547113
Light grey 16547114
Grey2 16547115

Page 5 of 18
Doc. no. 0072930 rev. F
Part list
Accessories: Part No.
CS44 programming cable (Right) 9022 907 69019
CS44 programming cable (Left) 9022 907 69029
Pin removal tool 15502500
Audio boot MX80 16231400
Audio boot MX70 16231500
Ear Box (left & right) 15458900
Package, kit for ex vent, TT 15468500
Blister Pack Part No.
Blister Pack 0A/L 15476100
Blister Pack 0B/L 15476200
Blister Pack 1A/L 15476300
Blister Pack 1B/L 15476400
Blister Pack 2A/L 15476500
Blister Pack 2B/L 15476600
Blister Pack 3A/L 15476700
Blister Pack 3B/L 15476800
Blister Pack 0A/R 15476900
Blister Pack 0B/R 15477000
Blister Pack 1A/R 15477100
Blister Pack 1B/R 15477200
Blister Pack 2A/R 15477300
Blister Pack 2B/R 15477400
Blister Pack 3A/R 15477500
Blister Pack 3B/R 15477600
Thin Tubes Part No.
Kit, ex vent system, thin tube 15467800
Thin tube click ins, 7L (40 pcs.) 15468100
Thin tube click ins, 9L (40 pcs.) 15468200
Thin tube click ins, 7M (40 pcs.) 15468300
Thin tube click ins, 9M (40 pcs.) 15468400

Page 6 of 18
Doc. no. 0072930 rev. F
Part list
Receiver module MX70 & MX80*
Colour MX70-DVI MX70-DV MX70-D MX70-DI MX80-DVI
Platinum 15428600 15429600 15429700 15429800 15754900
Light blonde 15428601 15429601 15429701 15429801 15754901
Medium blonde 15428602 15429602 15429702 15429802 15754902
Dark blonde 15428603 15429603 15429703 15429803 15754903
Dark brown 15428604 15429604 15429704 15429804 15754904
Beige 15428605 15429605 15429705 15429805 15754905
Anthracite 15428606 15429606 15429706 15429806 15754906
Marble grey 15428607 15429607 15429707 15429807 15754907
Black 15428608 15429608 15429708 15429808 15754908
Light grey 15428614 15429614 15429714 - 15754914
Grey2 15428615 15429615 15429715 - 15754915
Metal 15428616 15429616 - - 15754916
Orange 15428617 - - - 15754917
Red 15428618 - - - 15754918
Green 15428619 - - - 15754919
Blue 15428620 - - - 15754920
Purple 15428621 - - - 15754921
* Receiver module includes housing, hook, receiver and wires and must always be ordered if the receiver is defective.

Page 7 of 18
Doc. no. 0072930 rev. F
Part list
Electronic housing*
MX70-DVI & MX80-DVI MX70-DV MX70-D MX70-DI
Platinum 15428800 15428900 15429000 15429900
Light blonde 15428801 15428901 15429001 15429901
Medium blonde 15428802 15428902 15429002 15429902
Dark blonde 15428803 15428903 15429003 15429903
Dark brown 15428804 15428904 15429004 15429904
Beige 15428805 15428905 15429005 15429905
Anthracite 15428806 15428906 15429006 15429906
Marble grey 15428807 15428907 15429007 15429907
Black 15428808 15428908 15429008 15429908
Metal 15428816** 15428916** 15429016** 15429916**
Orange 15428817 - - -
Red 15428818 - - -
Green 15428819 - - -
Blue 15428820 - - -
Purple 15428821 - - -
* Electronic housing, hinge pin & push-button cover
** Housing in metallic comes w/o push-button cover The PB cover is not available in metal colour. Therefore the
electronic housing is delivered without cover. Another colour can be chosen instead.

Page 8 of 18
Doc. no. 0072930 rev. F
Part list
Bat Door, MX70 Part No
Platinum 15441700
Light blonde 15441701
Medium blonde 15441702
Dark blonde 15441703
Dark brown 15441704
Beige 15441705
Anthracite 15441706
Marble grey 15441707
Black 15441708
Light grey 15441714
Grey 15441715
Metal 15441716
Orange 15441717
Red2 15441718
Grey2 15441719
Blue2 15441720
Purple 15441721
Bat Door, MX80 Part No
Platinum 15194800
Light blonde 15194801
Medium blonde 15194802
Dark blonde 15194803
Dark brown 15194804
Beige 15194805
Anthracite 15194806
Marble grey 15194807
Black 15194808
Light grey 15194814
Grey 15194815
Metal 15194816
Orange 15194817
Red2 15194818
Grey2 15194819
Blue2 15194820
Purple 15194821
Front Mic sus-
pension
Part No
Platinum 15155100
Light blonde 15155101
Medium blonde 15155102
Dark blonde 15155103
Dark brown 15155104
Front, beige 15155105
Anthracite 15155106
Black 15155108
Marble grey 15155109
Red 15155111
Blue 15155112
Green 15155113
Light grey 15155114
Grey2 15155115
Back Mic sus-
pension:
Part No
Platinum 15155300
Light blonde 15155301
Medium blonde 15155302
Dark blonde 15155303
Dark brown 15155304
Beige 15155305
Anthracite 15155306
Black 15155308
Marble grey 15155309
Red 15155311
Blue 15155312
Green 15155313
Light grey 15155314
Grey2 15155315

Page 9 of 18
Doc. no. 0072930 rev. F
Part list - HI Complete
MX70-DVI: Part No.
Platinum 15196200
Light blonde 15196201
Medium Blonde 15196202
Dark blonde 15196203
Dark brown 15196204
Beige 15196205
Anthracite 15196206
Marble Grey 15196207
Black 15196208
Metal / Light Grey * 15196214
Metal / Grey * 15196215
Metal / Antracite * 15196216
MX70-DI: Part No.
Platinum 15289900
Light blonde 15289901
Medium Blonde 15289902
Dark blonde 15289903
Dark brown 15289904
Beige 15289905
Anthracite 15289906
Marble Grey 15289907
Black 15289908
* Two-tone devices :
The electronic housing is Metal. Front and back mic suspension is grey2.
MX70-D: Part No.
Platinum 15290000
Light blonde 15290001
Medium Blonde 15290002
Dark blonde 15290003
Dark brown 15290004
Beige 15290005
Anthracite 15290006
Marble Grey 15290007
Black 15290008
Metal / Light grey * 15290014
Metal / Grey2 * 15290015
Metal / Anthracite * 15290016
MX70-DV: Part No.
Platinum 15289800
Light blonde 15289801
Medium Blonde 15289802
Dark blonde 15289803
Dark brown 15289804
Beige 15289805
Anthracite 15289806
Marble Grey 15289807
Black 15289808
Metal / Light Grey * 15289814
Metal / Grey * 15289815
Metal / Anthracite * 15289816

Page 10 of 18
Doc. no. 0072930 rev. F
Part list - HI Complete
* Two-tone devices :
The electronic housing is Metal.
MX80-DVI : Part No.
Platinum 15280500
Light blonde 15280501
Medium Blonde 15280502
Dark blonde 15280503
Dark brown 15280504
Beige 15280505
Anthracite 15280506
Marble Grey 15280507
Black 15280508
Metal / Red * 15280511
Metal / Blue * 15280512
Metal / Green * 15280513
Metal / Light Grey * 15280514
Metal / Grey * 15280515
Metal / Antracite * 15280516
Orange / Grey2 15280517
Red2 / Grey2 15280518
Green2 / Grey2 15280519
Blue2 / Grey2 15280520
Purple2 / Grey2 15280521

Page 11 of 18
Doc. no. 0072930 rev. F
Electronic module assembly
Right.
Fit the suspension to the front microphone.
Ensure that the mic. is turned the correct
way before mounting it into the suspension.
Fit the suspension to the back microphone.
Ensure that the mic. is turned the correct
way before mounting it into the suspension.
Wrong.
Fold the back microphone around the
PCB. Ensure no damage to PCB during
the folding process.
Put on the self-adhesive rubber pads on
each side of the back microphone as
shown.
PICTURE

Page 12 of 18
Doc. no. 0072930 rev. F
Electronic module assembly
Align the keys on the socket holder
with the grooves in the housing.
Press the amplier gently into the
Electronic module housing.
Adjust the mic. suspensions to ensure
They are correctly seated in the elec-
tronic housing.
Place the PB cover + hinge(0.5x4.40)
on the housing.
Ensure no damage to the cover dur-
ing the insertion process.
Electrinic module complete.

Page 13 of 18
Doc. no. 0072930 rev. F
On-off mechanism
Connect the electronic housing to the receiver module and x them with the pins (except the rear pin).
Mount the on/off spring into the receiver module and x it with the rear pin.
Rear pin

Page 14 of 18
Doc. no. 0072930 rev. F
Final assembly
NOTE :
When replacing the PCB,
remember to place the same
ID part No. in the new socket
holder.
Using the applicable xture, solder the
Receiver wires from rec. Module to the
electronic module. Do not strain the
Wires.
While routing the rec. wires, t the
electronic module to the receiver
Module. Ensure the wires are not
trapped between the two modules.
Fit the battery door to the
receiver module and x it
with the pin.
Insert the on-off mechanism into the
device. Ensure it is seated correctly
in the housing.
Insert the ID part (printed w/
Serial no.) into socket holder
and secure correctly.

Page 15 of 18
Doc. no. 0072930 rev. F
Final assembly
Place the lter in the device hook.
Make sure there is no gap between
Hook and lter.
Rear pin (0.6x8.50)
Fit the 3 pin, Front, Rear and battery
hinge.
Front pin (0.6x5.20)
Batt. hinge (0.6x7.70)
To remove the pins, place the instru-
ment in the service tool. Use the pin
remover tool to push the pins out.

Page 16 of 18
Doc. no. 0072930 rev. F
Replacement of microphones
Remove soldermaterial from micro-
phone pads.
Place the new mic’s and resolder
as shown.

Page 17 of 18
Doc. no. 0072930 rev. F
Test
The BTE xture consists of two parts, a test frame and an instrument holder. Each part has its own part number and they are
available from GN Otometrics in Taastrup.
Test tubing is normal 20 mm effective lenght
as for all AUDIOmaster BTE testing.
Instrument xture
p/n 1-21-69200
Test frame p/n 1-21-65900

Page 18 of 18
Doc. no. 0072930 rev. F
Test
Use of the test xture is mandatory for all Metrix BTE during
AUDIOmaster testing. To use the xture, place the instru-
ment under test in the xture according to picture. Connect
the programming cable and select MX 70 test program in
AUDIOmaster. During the test program execution the IAD
calibration will be performed at the appropriate time. Another
bennet from the xture is that the instrument is in a well
dened position so the telecoil test can be performed without
any interaction from the operator.
20 mm
Instrument xture p/n 1-21-69200