ReSound ESSENCE LITE User manual

Technical Manual
ReSound ESSENCE & ESSENCE LITE BTE
Global Technical Operations
gto.gnresound.com
Lautrupbjerg 7 • DK-2750 Ballerup • Denmark
E-mail: [email protected]

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Table of Contents
Description...........................................................................................................................................3
Exploded view .....................................................................................................................................4
Part List ........................................................................................................................................... 5-6
Part List, Housing parts & rec modules ...............................................................................................7
HI Disassembly....................................................................................................................................8
Replace microphones..........................................................................................................................9
Receiver module & telecoil................................................................................................................10
Battery springs, VC & AI-module .......................................................................................................11
Test equipment ..................................................................................................................................12

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Description
Functional Description
ReSound ESSENCE is a strong new family of hearing instruments. With the capability to compensate for mild to severe hearing
losses and state of the art technology in its clase, the ReSound ESSENCE BTE is able to offer excellent hearing solutions.
ReSound ESSENCE is based on the latest chip technology and offers a surprisingly great package for any budgets without
compromising quality or benets. The instrument provides outstanding sound processing and quality as well as better speech
understanding with the very fast WARP system, Noise reduction and a xed Directionality. The strong ReSound DFS system
also cancels out feedback and allows for more stability and power. Additionally, with the standard BTE model (ES70) there is the
option of Open Fitting to allow more comfort and easier tting. Overall, ReSound ESSENCE offers a simply surprising product
feature set for better sound quality and more comfort.
Please also see Technical Data sheet:
Doc 16685400, ES70-DVI & ES70-VI
Doc 16685500, ES80-DVI & ES80-VI
Doc 16940200, EL70-VIH*
Doc 16940300, EL80-VI*
ESSENCE LITE not available with dual mic Single mic Dual mic Dual mic
OPEN
Single mic
OPEN
Note: OPEN Conguration for 70 models only

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Hook
Mic suspensions
Microphones
VC
CS44
prog. socket
PB
PCB
Batt. springs +/-
Receiver module
Electronic housing
CS44 cover
PB cover
Angle chassis
Socket Base
Battery door
Batt door
lock
Exploded View - Dual mic version shown
Ear hook

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Part List
Description Part No
ADAPTOR (for the ear hook) 15894000
ANGLE CHASSIS 15893800
AUDIO INPUT PCB 15895100
BATT DOOR LOCK 15893900
BATTERY SPRING +/- 15894300
CS44 PROG. SOCKET 3122 150 57033
TELECOIL 15284900
EAR HOOK / TONE TUBE 15894100
BABY EAR HOOK / TONE TUBE 16012900
FRONT MIC SUSPENSION 15894600
BACK MIC SUSPENSION 15894700
FRONT MIC COMPLETE 15937200
BACK MIC COMPLETE 15937500
MIC EM4446 CX 612-007-015-01
CONFORMAL COATING, SL 1367 *
WIRE RED INSUL 11MM 7STRANDS 620-011-003-01
WIRE YEL INSUL 11MM 7STRANDS 620-011-003-02
* Conformal coating SL1367 peters coat to be purchased locally.
**Check e.g. the vendor website http://www.peters.de
Description Part No
WIRE GRN INSUL 11MM 7STRANDS 620-011-003-03
MEASUREMENT TOOL 15200800
PB 95 15327000
TUBE ADAPT (OPEN) - for 70/70D only 16051100
COLOUR MARKER, RED 16011100
COLOUR MARKER, BLUE 16011101
TEST FIXTURE 16611100
TEST FRAME 16902800
CS44 PROG. CABLE (L), blue 9022 907 69029
CS44 PROG. CABLE (R), red 9022 907 69019
AUDIO SHOE 16071200
VC 50K LINEAR ±10% PJ77, BEIGE 15751100
VC 50K LINEAR ±10% PJ77, BROWN ** 15751101
AMP COMPL,BEIGE 16319100
AMP COMPL,BROWN ** 16319101
** used for BROWN, ME. BLONDE, MRB GREY & BLACK HI
Audio shoe 16071200
(ts 3 pin euro plug)
Tube adaptor
(open) Measurement tool 15200800
for both left and right side
Amp compl

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Part List - Thin Tubes & Domes (70 models only)
THIN TUBE BLISTER PACKS
(5 tubes & 3 cleaning wires) Part No
THIN TUBE 2,0A,R,BLSTR 18628600
THIN TUBE 2,0B,R,BLSTR 18628700
THIN TUBE 2,1A,R,BLSTR 18628800
THIN TUBE 2,1B,R,BLSTR 18628900
THIN TUBE 2,2A,R,BLSTR 18629000
THIN TUBE 2,2B,R,BLSTR 18629100
THIN TUBE 2,3A,R,BLSTR 18629200
THIN TUBE 2,3B,R,BLSTR 18629300
THIN TUBE 2,-1B,R,BLSTR 18629400
THIN TUBE 2,0A,L,BLSTR 18629500
THIN TUBE 2,0B,L,BLSTR 18629600
THIN TUBE 2,1A,L,BLSTR 18629700
THIN TUBE 2,1B,L,BLSTR 18629800
THIN TUBE 2,2A,L,BLSTR 18629900
THIN TUBE 2,2B,L,BLSTR 18630000
THIN TUBE 2,3A,L,BLSTR 18630100
THIN TUBE 2,3B,L,BLSTR 18630200
THIN TUBE 2,-1B,L,BLSTR 18630300
THIN TUBE DOMES
Description Bag
(10 pcs)
Blister Pack
(8 pcs)
DOME,THNTUB/REC,SZ5,SM 18500800 18607100
DOME,THNTUB/REC,SZ7,MDM 18500900 18607200
DOME,THNTUB/REC,SZ10,LGE 18501000 18607300
DOME,THNTB/REC,TULIP,STD 18501100 18607400
DOME,THNTUB/REC,PWR,SM 18265100 18607500
DOME,THNTUB/REC,PWR,MDM 18265200 18607600
DOME,THNTUB/REC,PWR,LGE 18265300 18607700

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Part List - HSG Parts & Rec Modules
HI COLOUR HSG Electronic
ES/EL70 & 80
HSG Electronic
ES70/80-D Battery Door PB cover CS44 Socket cover
VC Cover
(optional)
BEIGE 15893000 15897800 15893200 15893300 15897900 16013000
BROWN 15893001 15897801 15893201 15893301 15897901 16013001
MEDIUM BLONDE 15893002 15897802 15893202 15893302 15897902 16013002
MARBLE GREY 15893003 15897803 15893203 15893309 15897903 N/A
BLACK 15893004 15897804 15893204 15893308 15897904 N/A
VC cover optional
(child protection cover)
Rec module consist of:
Receiver Housing
Receiver Shield
Receiver Compl mounted
HI COLOUR REC MODULE
ES70-VI
REC MODULE
ES70-DVI
REC MODULE
EL70-VI
REC MODULE
ES80-VI
REC MODULE
ES80-DVI
REC MODULE
EL80-VI
BEIGE 16831200 16831100 16936700 16831400 16831300 16936800
BROWN 16831201 16831101 16936701 16831401 16831301 16936801
MEDIUM BLONDE 16831202 16831102 16936702 16831402 16831302 16936802
MARBLE GREY 16831203 16831103 N/A 16831403 16831303 N/A
BLACK 16831204 16831104 16936704 16831404 16831304 16936804

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HI Disassembly
Pull out the ear hook from HSG Open batt door about halfway.
Hold and grip the door tight on
both sides and lift off door from HI
Release HSG by pushing the
small plastic part as shown
Squeeze
to grip
Lift off
batt door
Slowly separate the housing
When separating HSG the batt door lock
may come off. Be careful not to loose this
plastic part
De-solder the rec rec wires. Carefully separate the housing parts

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Replacing Microphones
Wire lengths on both mics:
- Red 11mm
- Green 11mm
- Yellow 11mm
Note:
Apply coating on solder pads after soldering
Front microphone complete
P/n 15937200
Rear / back microphone complete
p/n 15937500
Front mic
Back mic
Remove mics and amplier from electronic HSG

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Replacing Receiver Module & Telecoil
Note:
Apply coating material on solder pads after soldering
Remove defective telecoil and place the new coil onto
white frame as shown. Use rubber glue to keep in place
Rec solder
pads
De-solder the receiver connection as shown and
replace with a new receiver module
Telecoil
solder pads

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Replacing Battery Springs, VC & AI-module
Note: Apply coating material on solder pads after soldering
VC terminals
Unscrew the VC nut. Remove solder
from VC terminals to exchange the VC
(+) & (-) spring are similar
To remove AI module desolder the 4 terminals
AI module p/n 15895100

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Test Equipment
CS44 Prog cable
(Left blue is shown)
9022 907 69019 (R)
9022 907 69029 (L)
2cc coupler
p/n 30-4838800
to be ordered with GTO
Dept/HQ Ballerup DK
2cc coupler BTE insert
p/n 40B4609601
to be ordered with GTO
Dept/HQ Ballerup DK
Test frame p/n 16902800 Test xture, p/n 16611100
Connect the prog cable
to the CS44 socket in HI
BTE coupler insert at-
tached the 2cc coupler