NUROTRON Enduro User manual

Cochlear Implant Speech Processor
and Its Accessories
Zhejiang Nurotron Biotechnology Co., Ltd.
No.17 Longtan Road, Yuhang District, Hangzhou, China
National Service Hotline: [phone]
Website：http://www.nurotron.com
V 2.3
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BC040108

1. Operating Principle
2. Product Structure
2.1 Signal Processing Unit
2.2 Transmission Coil, Transmission Wire and External Magnet
2.3 Rechargeable Li-ion battery (BTE battery)
2.4 Remote Controller
3. Model
4. Serial Number
5. Main Indexes of Products
5.1 Basic Parameters of Products
5.2 Working Conditions
5.3 Transports and storage condition
5.4 Main Performance Indexes
6. Application Scope
7. Contraindications
8. Usage
8.1 Assembly and disassembly of BTE battery and signal processing unit
8.2 Replacement of Ear Hook
8.3 Connection of Transmission Wire
8.4 Installation of Transmission Coil
8.5 Power on/off Speech Processor
8.6 Low Power Prompt and Charging of Battery Compartments
9. Maintenance & Repair of Speech Processors and Remote Controllers
9.1 Storage of Speech Processors and Remote Controllers
9.2 Cleaning of Speech Processors and Remote Controllers
9.3 Keep the Speech Processor & Remote Controller Dry
10. Troubleshooting
11. Help Information
12. Warning and Preventive Measures
12.1 Replacement of Dustproof Membranes
12.2 Preventive Measures on Use of Battery
12.3 Other Preventive Measures
13. Manufacturer's and Authorized representative in the European
Community Information
14. After-sales Service Information
14.1 Service content
14.2 Information on service institutions
15. Mark Symbols
16. Guidance and Manufacturer’s Declaration
17. Nurotron cochlear implant system component list
P02
P02
P03
P05
P07
P08
P10
P10
P11
P11
P11
P11
P11
P12
P12
P12
P13
P13
P14
P14
P15
P15
P16
P16
P17
P17
P18
P19
P20
P20
P21
P21
P21
P21
P22
P22
P22
P23
P27

01 Operating Principle
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The cochlear implant system is composed of Enduro cochlear implant speech processor (hereinafter
shortened as speech processor) and cochlear implant (hereinafter shortened as implant). Cochlear
implant speech processor contains the signal processing unit, transmission wire, transmission coil
and battery. The remote controller for signal processing units (hereinafter shortened as the remote
controller) is considered to be the accessory. Cochlear implant speech processor is the external part
of the cochlear implant system. The remote controller may achieve the function of wireless
operation for the speech processor, able to monitor the operating conditions of the speech processor,
as well as the use conditions of the battery; the signal processing unit is able to collect, analyze and
process the sound signals in the environment, carry out encoding for processed sound signals, send
them to the implant in the form of radio-frequency signals, and use the electrode array of the
implant to stimulate residual acoustic nerves of severe-to-profound sensorineural deafness patients,
so as to enable them to sense the sound.
02 Product Structure
Enduro cochlear implant speech processor and its accessories are the non-implantable part of the
cochlear implant system, mainly composed of signal processing unit, transmission wire,
transmission coil, Behind-the-ear (BTE) battery, remote controller, etc. Figure 1 shows the BTE
wearing type of the speech processor. The expected service life of the device and accessories is 3
years.
1 Transmission Coil; 2 Transmission Wire; 3 Signal Processing Unit;
4 Rechargeable BTE Battery; 5 Remote Controller
Figure 1. BTE Wearing Type
Warning:
Implant recipients below 14 years old or persons with an intellectual
disability are not allowed to complete all operations in this manual,
and the operations of the speech processor shall be completed by the
guardian/caregiver. Guardian/caregiver can connect the speech
processor, replace batteries, perform daily cleaning and maintain in
accordance with this operation manual. When the device is in using,
please don’t clean or maintain the device.
Implant recipients who are more than 14 years old, literate, and having
normal intelligence, can operate the speech processor independently.
The implant recipients are the intended users, he or she can connect the
speech processor, replace batteries, perform daily cleaning and
maintain in accordance with this operation manual. When the device is
in using, Please don’t clean or maintain the device.
This manual shall apply to Enduro cochlear speech processor and is
suitable for patients’ daily use.
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01 02
Operation Manual of
Cochlear Implant Speech Processor

2.1 Signal Processing Unit
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2.1.1 Earhook
The bionic radian design of the ear hook may make you have the experience of more
comfortable wearing, able to meet the auricle demands of most adults or children.
2.1.2 Status Indicating Lamp
The status indicating lamp is used to show the operating condition of the speech processor. In the
Figure 2, the Pointer 2’s position is the position of the status indicating lamp.
◆ The orange lamp is on for once: After the signal processing unit is connected to the power
supply, or after use of the sound volume adjustment key or program key or startup & shutdown key,
the indicating lamp is on for once.
◆ The orange lamp is off after slowly flickering for three times: When the signal processing unit is
started, the system carries out initialization; after the stable operation is achieved, the indicating
lamp is off.
◆ The orange lamp continuously and slowly flickers: The coil is not directly above the implant,
and the signal processing unit is looking for the implant. After reconnection, the indicating lamp
slowly flickers for three times, and then the indicating lamp is off to enter the normal operating
status. When the battery power is less than the specified value, the alarm prompt flickers.
◆ The orange lamp continuously and quickly flickers: In the signal processing unit, there are no
debugging parameters, or the debugging parameter is not correct, or other possible errors exist.
2.1.3 Microphone
Mainly used for acoustic signal acquisition.
2.1.4 Microphone Cover
Microphone cover is mainly used to protect the keys on the signal processing unit. Air orifices are
left around the microphone area to facilitate acoustic signal acquisition.
2.1.5 Dustproof Membrane of Microphones
The dustproof membrane of microphone is placed under the air orifices, mainly used for dust
prevention and moisture protection.
2.1.6 Radio-frequency Signal Output Interface
The radio-frequency signal of the signal processing unit is output via the interface, and the
radio-frequency signal is transmitted to the transmission coil through the transmission wire
connected to the interface.
2.1.7 Sound Volume/Program Selection Switch
“+” and “-” keys on the signal processing unit (as shown in the Figure 3) may achieve sound
volume adjustment, program switching, current program view, and power on/off operation, able to
realize various functions by pressing different keys.
Sound volume adjustment function: It is used to adjust the loudness of sound. This function may be
achieved by shortly pressing “+” and “-” keys. After shortly pressing “+” key, the indicating lamp
flickers for once, which indicates that the adjustment is successful and the sound volume level is
increased; after shortly pressing “-” key, the indicating lamp flickers for once, which indicates that
the adjustment is successful and the sound volume level is reduced; the sound volume level refers
to Level 1-12. At the time of power on, the initial sound volume level is Level 10.
Program switching function: Carry out switching for different signal environments and processing
programs downloaded to the chip of the signal processing unit from the computer, and refer to four
programs including Program 1, Program 2, Program 3 and Program 4. The implant recipient may
select the best program suitable for himself/herself. The implant recipient may adjust the used
program by pressing “+” key for 3s, until the indicating lamp flickers for once, which indicates that
the adjustment is successful; the default initial program is Program 1.
Current program view: It is used to view the current program used. Press “+” and “-” keys at the
same time, and release the keys after the indicating lamp is on. The indicating lamp is on for the
1 Ear Hook; 2 Status Indicating Lamp; 3 Dustproof Membrane of Microphone;
4 Volume “+” & Program Switching Key; 5 Volume “-“ and Power on/off Key;
6 Radio-frequency Signal Output Interface; 7 Microphone; 8 Battery & Fitting Cable Interface
Figure 2. Components of Signal Processing Unit
Figure 2 is the composition diagram of the signal processing unit. The microphone (7) collects
sound signals, and the signal processing unit carries out encoding for sound signals, to achieve
output via the radio-frequency signal output interface (6). The ear hook (1) may be hanged on the
ear of the user, the status indicating lamp (Indicating lamp for short) (2) is used to display the
operating condition of the speech processor, the operating buttons (4 and 5) may achieve sound
volume adjustment, program switching and power on/off operation, the dust-proof membrane (3)
prevents dust and sweat from entering the microphone, and the interface (8) is used to connect the
battery and fitting cable.
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03 04

The transmission coil is mainly used to transmit and receive radio-frequency signals; the
transmission wire is used to connect the transmission coil and signal processing unit; the external
magnet is attracted to the magnet in the receiving coil of the implant across the scalp, to ensure the
correct connection between the implant and transmission coil.
The structure of transmission coil & transmission wire is shown in Figure 4:
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1
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5
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2
1
Magnet
2.2.1 Transmission Wire
The transmission wire refers to 5 length types:
6cm, 8cm, 10cm, 20cm and 28 cm；
20cm, recommended for children;
28cm, recommended for adults;
One end of the transmission wire is connected to the signal processing unit through the
four-core socket; the other end is connected to the transmission coil through the pin-header
socket.
2.2.2 Transmission Coil
The transmission coil is directly above the implant. Via the external magnet, it is attracted to
the magnet in the receiving coil of the implant across the scalp, to ensure that the transmission
coil is fixed on the correct position.
The transmission coil is connected to the transmission wire through the pin-header socket, to
achieve replacement via insertion and extraction.
2.2.3 External Magnet
The external magnet adopts the clip-on type. The rotary clip-on type external magnet is shown
in the Figure 5. The relative position of the external magnet & transmission coil remains
unchanged after rotating and fastening. The change of suction-combining force may be
achieved by replacing the external magnet with different models.
The external magnet has 6 specifications, including ②- ⑥and ⑧marked on the inner side of
the external magnet, as shown in the Figure 5. When the external magnet specification is not
suitable, it is required to carry out replacement according to the Figure 5, rotate in an
anti-clockwise direction to push out the external magnet, and install the external magnet with
the suitable specification on the transmission coil.
1 Four-core Socket; 2 Transmission Wire; 3 Transmission Coil; 4 External Magnet; 5 Pin-header Socket
Figure 4. Transmission Coil & Transmission Wire Diagram Figure 5. Inner Side of the External Magnet
Warning
Chocking hazard-small parts included in this device, please supervise children
under 3 years old during use.
1 Sound Volume “+” Key; 2 Sound Volume “-” Key
Figure 3. Keys
Warning
The Enduro speech processor contains small parts that may cause choking if
swallowed or ingested. Please supervise children under 3 years old during use.
first time, which indicates that the operation is successful. Then, the number of times for flickering
of the indicating lamp represents the current program number of the signal processing unit. For
example, flickering for once indicates that the current program is Program 1; flickering for twice
indicates that the current program is Program 2; the rest can be done in the same manner.
Power on/off function: It is used for the power connection & disconnection function of the signal
processing unit. This may be achieved by pressing “-” key for a long time. The indicating lamp
flickers, which indicates that the operation is successful.
2.2 Transmission Coil, Transmission Wire and External Magnet
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05 06
Operation Manual of
Cochlear Implant Speech Processor

The remote controller model is Touch Free, and the remote controller is the internal powered
equipment, without application parts. The remote controller matched with the signal processing
unit of Enduro series may achieve the following functions:
◆ Operation control function: It is able to be matched with the specific signal processing unit.
After successful pairing, it operates the processing unit, including volume adjustment, program &
input mode selection, mode selection, entering sleep mode, etc.
◆ Show the operating state of the signal processing unit: volume, program, BTE battery power,
and remote controller battery power, and display other related information on the LED screen.
◆ Show the operating state of the implant: Check the connection between processing unit and
implant.
The overall structure diagram of the remote controller is shown in the Figure 8:
2.4.1 Power Key
The power key is on the upper right of the remote controller shell, able to achieve the following
functions:
◆ Press the power key for 5s: This may achieve the startup & shutdown function of the remote
controller. At the time of startup, the screen is on, and shows the welcome interface, so that the
remote controller is turned on. At the time of shutdown, the operation is carried out under the status
that the screen is on. The screen shows the shutdown prompt box. After the “OK” is clicked, the
screen is off, so that the remote controller is turned off.
◆ Press for 1s: This may achieve the unlocking or manual screen locking function of the remote
controller; when the remote controller is under the standby state and the screen is off, it is required
to shortly press the power key to show the unlocking interface, and carry out the unlocking
operation according to the prompt of the screen; when the screen of the remote controller is on, it
is required to shortly press the power key, so that the screen is off and the remote controller enters
the standby state.
Cochlear implant speech processor is
powered by the BTE battery, and adopts
the rechargeable lithium battery cell.
Battery cycle life is at least 300 times.
BTE battery contains 210mAh lithium ion
cell. When the battery is fully charged, the
normal service time is 6-10 hours. The
specific structure is shown in the Figure 6:
2.3.1 Battery Connector
The battery connector is the interface for
connection between the battery and signal
processing unit, with the titanium alloy
interface, silicon rubber sealing ring and
polymer & metal pin plate, as shown in
the Figure 7:
2.3.2 Battery Lock
The battery lock is used for connection
and fixation between the battery and signal processing unit, as well as installation and removal of
battery. When the lock is closed, the battery is fixed with the signal processing unit; when the lock
is opened, the battery is separated from the signal processing unit, to complete the removal of the
battery. As shown in the Figure 6, the position displayed by the Pointer 2 is the locking & closing
status. If required to be opened, strongly press the position shown by the Pointer 2.
2.3.3 Decorative Sheet for Behind-the-ear Battery Compartments
The decorative sheet for BTE battery compartments is located on the front position of the battery
(see 3 in the Figure 6), to achieve decorative effect.
2.3.4 Specification & Model
The BTE battery may be recharged and used repeatedly. The nominal voltage is 3.7v, and the
capacity is 210mAh.
2.3.5 Charging Method
When the low power is prompted, please take down the battery and connect it to the charging holder
for charging. After the completion of charging, take it down, and connect it to the signal processing
unit for use. The charging method is shown in the Section 8.6 of the manual.
Figure 7. Battery Connector
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2
3
Figure 8. Outside Structure Diagram of the Remote Controller
1 Battery Connector; 2 Battery Lock; 3 Decorative Sheet
Figure 6. Rechargeable Li-ion battery (BTE battery)
2.3 Rechargeable Li-ion battery (BTE battery) 2.4 Remote Controller
Power
Volume "+"
Volume "-"
Touch screen
Micro USB charging interface
Right softkey
Home
Left softkey
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07 08

The serial number is the only identification symbol of the speech processor produced by Nurotron
Company. The marking position is shown in the Figure 9. The marking naming method is as follows:
a. Marking naming method of the signal processing unit: ED (represent that it belongs to Enduro
system) 1 (represent the signal processing unit) 0A (version) 0001 (production serial number,
starting from 0001) X (security authentication code); IP44 (waterproof level);
b. Marking naming method of the behind-the-ear battery compartment: ED (represent that it
belongs to Enduro system) 2 (represent the behind-the-ear battery compartment) 0A (version)
DDMYY (production date); IP44 (waterproof level);
c. Marking naming method of the transmission coil: ED (represent that it belongs to Enduro
system) 3 (represent the transmission coil) 0A (version) 0001 (production serial number, starting
from 0001); IP44 (waterproof level);
d. Marking naming method of the remote controller: ED (represent that it belongs to Enduro
system) 5 (represent the remote controller) 0A (version) 0001 (production serial number, starting
from 0001); IP22 (waterproof level);
e. Marking naming method of the transmission coil magnet:
The only one Arabic numeral is marked on the inner side of the external magnet, to discriminate the
magnet intensity grade. The magnet intensity grade refers to ②- ⑥and ⑧. The bigger the numeral
is, the stronger the magnet intensity is.
03 Model
04 Serial Number
a. Marking Position of the Signal Processing Unit; b. Marking Position of the BTE Battery;
c. Marking Position of the Transmission Coil; d. Marking Position of the Remote Controller;
e. Marking Position of the Transmission Coil Magnet;
Figure 9. Marking Position Description of Cochlear Implant Speech Processor and Its Accessories
2.4.2 Sound Volume Key
The sound volume key is on the right of the remote controller shell. Sound volume “+” key is on
the upper position, and sound volume “-” key is on the lower position, able to achieve the following
functions:
◆ Volume “+” key: Press “+” key for once so that the sound volume is increased by Level 1, after
the remote controller is successfully matched with the speech processor and the speech processor is
under the normal operating status.
◆ Volume “-” key: Press “-” key for once so that the sound volume is reduced by Level 1, after the
remote controller is successfully matched with the speech processor and the speech processor is
under the normal operating status.
2.4.3 Touch Screen
Adopt 2.4-inch capacitive screen.
2.4.4 Soft Keys
Left softkey: Turn the left page/return to the previous level;
Home key: Display the main interface of the remote controller;
Right softkey: Turn the right page, or on the current program display interface, enter “Advanced”
interface.
2.4.5 Micro USB Charging Interface
The charging interface is on the right of the remote controller shell, below the sound volume key,
adopting micro USB interface.
The input voltage is 5v, and the charging current is 200mA. Under ideal conditions, fully charging
for once may achieve the standby time of 20 days.
2.4.6 Specification & Model
The remote controller model is Touch Free; the waterproof level is IP22; the input voltage is 5.0v,
the nominal voltage is 3.7v, and the capacity is 500mAh.
2.4.7 Charging Mode
When the power of the remote controller is not sufficient, please connect the charging cable of the
remote controller to carry out charging. During the process of charging, the battery symbol on the
upper right of the screen shows the lightning sign, and the remote controller may be normally used
at the time of charging; after the completion of charging, the lightning sign disappears. When the
remote controller cannot be charged or needs to replace the internal battery, please contact Nurotron
Company to carry out replacement. Without permission, no disassembly or replacement is allowed.
The speech processor model name is Enduro.
ED10A0001
IP44
ED50A0001 IP22
a.
b.
e. d.
c.
ED20ADDMYY
IP44
IP44
ED30A0001
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09 10
Operation Manual of
Cochlear Implant Speech Processor

Ambient temperature: 5°C~50°C; Relative humidity: ≤85%.
Atmospheric pressure: 60kPa~106kPa
Note: Due to the highest use environment is 50ºC, the surface temperature of device is affected by
using temperature, but will not more than 52ºC.
Ambient temperature: -20ºC ~50ºC; Relative humidity: ≤85%.
Effective operating distance of the transmission coil: 2mm～10mm;
Effective operating distance of the remote controller: 0m~1.5m;
Sound intensity response range: In the range of 35dBSPL～80dBSPL, stimulating pulse amplitude
and input sound signal strength show increasing response. Under the condition of more than
80dBSPL, the automatic suppression is achieved on the stimulation strength of 80dBSPL;
Signal processing frequency range: 150Hz～7.8kHz;
Electrostatic protection: Conform to EN45502-2-3:2010 Standard: Able to bear 2kV contact
discharge for 10 times and 8kV air discharge for 5 times.
Internal power supply, and Type BF applied part (the applied part is the transmission coil);
Running mode: Continuous operation;
Waterproof level: Remote controller: IP22, other parts: IP44.
Item
1 Signal processing unit
Table 5-1 Basic Parameters of Enduro Products
Max. external dimension
weight
Diameter of coil
weight
Max. external dimension
length
Max. external dimension
weight
Max. external dimension
39 mm×25.5 mm×9.5 mm
≤5 g
≤31.5 mm
≤9 g
≤13 mm
6 cm, 8 cm,10 cm, 20 cm, 28 cm
21 mm×31 mm×10 mm
≤7.7 g
95.5 mm×49.5 mm×10 mm
Transmission coil
Rechargeable BTE battery
Remote controller
External magnet
Transmission wire
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SpecificationProduct
05 Main Indexes of Products
The Nurotron cochlear implant system is intended to restore the sensations of hearing by
electrically stimulating the auditory nerve in patients aged 12 months and above diagnosed with
severe-to-profound sensorineural hearing loss. Cochlear implant speech processor is a device
which carries out the digital processing for sound, and delivers the electrical stimulation to the
auditory nerve through the cochlear implant to restore the auditory sense. Enduro Cochlear
implant speech processor is the non-implantable part of the cochlear implant system, used with
CS-10A series cochlear implant produced by Nurotron Company; at the time of fitting, it is used
with NuroSound fitting software and fitting box. The speech processor is applicable to
severe-to-profound sensorineural deafened patients aged more than 12 months. Cochlear implant
speech processor may be used in many places such as home, school and working unit.
06 Application Scope
Absolute contraindications:
1) Serious malformation of inner ear, such as Michel deformation or cochlea absence;
2) Auditory nerve absence;
3) Deafness caused by non-cochlea illness;
4) Serious mental disease;
5) Uncured purulent mastoiditis of middle ear.
Relative contraindications:
1) Bad physical condition;
2) Uncontrollable epilepsy.
07 Contraindications
At the time of initial fitting (power on), the audiologist may assemble your signal processing unit
according to the following steps:
1) Connect the signal processing unit to the BTE battery, to constitute the BTE wearing type;
2) The transmission wire is connected to the transmission wire jack of the signal processing unit
via the four-core socket for transmission wires; the transmission wire is connected to the
transmission coil via the pin-header socket;
3) Select the external magnet with appropriate intensity, and install it on the corresponding
position of the transmission coil;
4) Wear the signal processing unit and transmission coil, and adjust to the comfortable position;
5) Power on the speech processor, and select the appropriate program;
6) Adjust the sound volume.
08 Usage
5.1 Basic Parameters of Products
5.2 Working Conditions
5.3 Transports and storage condition
5.4 Main Performance Indexes
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11 12

Figure 10. Assembly and Disassembly of BTE Battery and Signal Processing Unit
Figure 12. Connection between the Transmission Wire and Signal Processing Unit
The installation Disassemble
The assembly and disassembly of BTE battery and signal processing unit are shown in the Figure 10:
Assembly: The signal processing unit connector is aligned to the corresponding position of the
battery connector, and it is required to gently fasten from back to front to achieve connection.
Disassembly: On the top of the decorative sheet for BTE battery, vertically push the battery lock
inward, and pull the battery backward, to achieve separation between both.
As shown in the Figure 11, one hand holds the signal processing unit, and the other hand holds the
ear hook. Both hands respectively pull out to both sides, to take down the ear hook; according to the
direction opposite to the direction of taking down the ear hook, strongly push the standby ear hook
to the original position.
Installation of transmission wire: As shown in the Figure 12, one hand holds the signal processing
unit, and two fingers of the other hand firmly grasp the four-pin socket for transmission wire. Aim
at the position, and carry out downward insertion, to ensure that the gap between both is minimized.
Figure 13. Removal of the Transmission Coil and Signal Processing Unit
Removal of transmission wire: As shown in the Figure 13, one hand holds the signal processing
unit, and two fingers of the other hand firmly grasp the four-pin socket for transmission lines.
Gently pull out in the upward direction; do not strongly pull the cable or reverse the four-pin socket
for transmission wire.
Installation of transmission coil: As shown in the Figure 14, one hand holds the transmission coil,
and the other hand holds the pin-header plug for transmission wires. Aim at the position, and carry
out insertion, to ensure that the gap between both is minimized.
Removal of transmission coil: As shown in the Figure 15, one hand holds the transmission coil, and
In daily use, the remote controller can be used to carry out the following operation for the speech
processor:
1) Power on/off the speech processor;
2) Matching recognition between the speech processor and remote controller;
3) Program switching; 4) Volume adjustment;
5) Input mode switching; 6) Mode switching;
7) Battery power monitoring; 8) Connection state detection.
Figure 11. Ear Hook Replacement Method
8.1 Assembly and disassembly of BTE battery and signal processing unit
8.2 Replacement of Ear Hook
8.4 Installation of Transmission Coil
8.3 Connection of Transmission Wire
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13 14
Operation Manual of
Cochlear Implant Speech Processor

Figure 14. Installation of Transmission Coil Figure 15. Removal of Transmission Coil
1. Charging Holder for BTE battery
Figure 16. Charging Method of BTE Battery
Figure 17. Charging Status of BTE battery
2. BTE Battery
Charging in progress
Power supply lamp
The battery is full
When the speech processor is not used, please disconnect the connection between the speech
processor and battery, and wipe the speech processor, transmission wire, transmission coil and
remote controller with clean cloth; please put the speech processor and remote controller into the
Carry out power on/off operation for speech processor by using the following two methods:
8.5.1 Power on/off by Pressing the Key
When the signal processing unit is turned off, it is required to press “-” key on the signal processing
unit for 3s, and the status indicating lamp flickers for 3 times, which indicates that the operation is
successful, to turn on the speech processor;
When the signal processing unit is turned on, it is required to press “-” key on the signal processing
unit for 3s, and the status indicating lamp flickers for once, which indicates that the operation is
successful, to turn off the speech processor.
8.5.2 Power on/off by Using the Remote Controller
Under the circumstance that the remote controller is successfully connected to the speech
processor, use the right soft key to enter and select “BTE Power” module in the remote controller,
and choose “Power on” or “Power off”. The progress point is displayed in green, which indicates
that the operation is successful.
Notice: After power on, if the implant is not timely connected, or the implant is not successfully connected, the
speech processor will be automatically turned off about 2.5 minutes later.
The BTE battery may be recharged and used repeatedly. When the status indicating lamp on the
signal processing unit continuously and slowly flickers or/and the alarm sound appears in the signal
09
Maintenance & Repair of Speech Processors and Remote Controllers
8.5 Power on/off Speech Processor
9.1 Storage of Speech Processors and Remote Controllers
8.6 Low Power Prompt and Charging of Battery Compartments
the other hand holds the pin-header plug for transmission wire. Gently pull out; do not strongly pull
the cable or reverse the pin-header plug for transmission wire.
processing unit, this indicates that the battery enters the low power mode. At this time, please take
down the battery, and connect it to the charging holder for charging. After the completion of
charging, take down the battery, and connect the battery to the signal processing unit for use.
During the process of charging, the white indicating lamp of the battery is on. After the battery is
fully charged, the indicating lamp is off. The battery cannot be used during the process of charging.
Please press the battery installation & removal button to replace the battery; do not pull out by
force. The charging method and charging status of BTE battery are respectively shown in the Figure
16 and Figure 17:
1
2
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15 16

When the following circumstances occur, your speech processor may be faulted:
◆ No sound is heard when the speech processor is under the state of startup;
◆ The sound is intermittent or of bad quality, or makes the user feel uncomfortable;
◆ An alarm sound;
◆ The status indicating lamp shows the warning prompt;
◆ The remote controller displays that the connection is not successful;
◆ After the information is input via the remote controller, the speech processor has no response.
In case of problems, please follow the operation steps; do not use the brute force on any part.
After each step is implemented, please check if the sound is heard.
Restart the remote controller, and carry out pairing operation again.
If the related problems still exist after your check, please contact your audiologist or Nurotron
Company.
You may also encounter other problems, as shown in “11 Help Information”.
Only Nurotron can repair device and replace components. Other people are forbidden to repair the
device and replace the components of device.
Note: The maintenance agency is Nurotron’s technicians and assembly of the cochlear implant
speech processor during the actual service life will be evaluated to meet the requirements of the
standard IEC 60601-1.
Help
Information Description of failure Troubleshooting
Please keep the battery contacts between the speech processor and battery clean. Wipe the contacts
with a cotton ball or cotton swab dipped into alcohol. Please do not use too much force, to avoid
damaging the battery contacts.
At the time of cleaning the surface of the speech processor, gently wipe with a piece of cloth dipped
into mild detergent, and prevent the fluid from entering the speech processor. Frequently clean the
surface, which can effectively prevent the dust from entering the speech processor.
At the time of cleaning the surface of the remote controller, gently wipe with a piece of cloth
slightly dipped into mild detergent, and prevent the fluid from entering the metal charging port of
the remote controller. Frequently wipe the surface, which can effectively prevent the dust from
entering the remote controller.
9.2 Cleaning of Speech Processors and Remote Controllers
When not used at night, it is recommended to wipe the speech processor, take down the battery, and
put it into the special electronic dryer or other seal boxes with drying agents for drying. The specific
operation method for electronic dryers is shown in the operation manual for electronic dryers.
When not used at night, it is recommended to turn off the remote controller, clean the surface and
put it into the seal box with drying agents.
Drying frequency:
1) Electronic drying: It is recommended to carry out drying once every two days (2-3 hours for each
time). Under the humid environment, or if the user sweats more, the frequency may be properly
increased.
2) Daily drying: When not used at night, it is recommended to put it into the seal box with drying
agents.
Warning: If other drying agents on chemical drugs are adopted, please keep away from children, to
prevent children from swallowing these chemical drugs by mistake.
9.3 Keep the Speech Processor & Remote Controller Dry
special electronic dryer or other seal boxes with drying agents. The humid environment may cause
the circuit failure of the speech processor & remote controller, so that the normal operation cannot
be achieved.
If the speech processor is not used for a long time, please disconnect the connection between the
speech processor and battery and put the speech processor into the sealed plastic bag; if the remote
controller is not used for a long time, please turn off the remote controller. As the remote controller
adopts the built-in lithium ion battery, it is required to carry out charging for it at regular intervals,
to keep the battery active (the recommended charging frequency is once every 7-10 days).
10 Troubleshooting
11 Help Information
1
2
Transmission coil is not tightly
absorbed and prone to fall off.
• Use transmission coil with stronger magnetic force.
• Suitably cut off the hair where transmission coil is absorbed;
• Contact your audiologist or Nurotron company.
Hear no sound
• Check the location of transmission coil, then reboot.
• Check whether speech processor and power supply are on.
• Check the level of volume switch.
• Replace with new batteries and reboot. Check whether
battery level is sufficient.
• Check cable and replace it if necessary.
• Use alcohol cotton ball to clean metallic contacts (metallic
contacts of batteries and connecting piece of signal
processing unit)
• Contact your audiologist or Nurotron company.
Hear more, Live better!
17 18
Operation Manual of
Cochlear Implant Speech Processor

You may wear speech processor in cold or hot outdoor areas. In extremely cold environment, you
may wear a hat or bundle up your hair on the speech processor. In extremely hot environment,
please wipe off sweats timely to avoid permeating into signal processing unit, which will lead to
electric circuit fault. If you don't wear speech processor, please don't put it in places of high
temperature (such as behind a window or in a car radiated by sunlight).
Please take down your speech processor when taking bath or swimming. If your speech processor
is accidentally permeated with a small amount of water or other fluid, please turn it off immediately,
wipe or use some drying tools to dry it, and leave it unused for next12 hours. After 12 hours, if the
device is still not working, please contact our after-sale service personnel.
When you are making up, powdering or spraying pomade or such things on hair, please take off
your speech processor, because these particles may damage your signal processing unit.
Please keep dust or sand away from your signal processing unit. If dust or sand comes in, please try
best to shake them out. If the condition goes serious, please contact our after-sale service personnel.
Don't open signal processing unit by yourself.
Cochlear implant speech processor, as well as the remote controller, cannot be used in the presence
of combustible anesthetic gas mixed with air, oxygen or nitrous oxide.
Choking Hazard: small parts included in this device, please supervise children under 3 years
during use.
When the dustproof membrane for microphones on the cover plate for keys of the signal processing
unit gets dirty or the quality of hearing the sound is reduced, please contact Nurotron Company to
timely carry out replacement.
12.1 Replacement of Dustproof Membranes
Generally speaking, these measures shown below may make the battery show its optimal
performance:
1) Put the standby BTE battery into the sealed plastic bag, to ensure that the metal contact of the
battery cannot be in contact with other metal objects, such as coins. The above-mentioned method
can effectively avoid the abnormal discharge of the battery, battery heating or explosion. It is
required to place the battery compartment in the cool and shady environment.
2) Do not heat the battery. For example, do not place the battery on windows or in cars under the sun.
3) Do not immerse the battery in water.
4) Do not use excessive force to deform the battery. Do not use excessive force to assemble the BTE
12.2 Preventive Measures on Use of Battery
12 Warning and Preventive Measures
3
4
Status indicating lamp of signal
processing unit blinks slowly
and continuously.
• Transmission coil is not directly above the receiving coil of
implant. Adjust the location of transmission coil and reboot.
• Battery level is lower than prescribed value. Please replace
batteries.
• Contact your audiologist or Nurotron company.
Status indicating Lamp of
signal processing unit blinks
quickly and continuously.
• No program in signal processing unit, or incorrect fitting
parameters, or other possible errors.
5
6
Alarm sounds. • Battery level is lower than prescribed value. Please
replace batteries.
Noise heard
• Confirm the correct connection between transmission coil
and signal processing unit, and the position of transmission
is correct.
• Replace with new batteries and reboot.
• Check whether volume switch is correctly set.
• Check whether the microphone on signal processing unit
contains foreign matters or is damaged.
• Contact your audiologist or Nurotron company.
7Sound is blurred and weak, or
sound quality is deteriorating.
• Make sure microphone is not covered by other things.
• Replace batteries and reboot. Check whether bad sound
quality is caused by insufficient battery power.
• Check whether telephone cover is fouled and damaged.
If so, please replace.
• Contact your audiologist or Nurotron company.
8The remote controller is not
successfully connected
• Check if the power of the remote controller is sufficient. If
the power is not sufficient, please timely carry out charging.
• Reduce the distance between the remote controller and signal
processing unit, and ensure that the connection distance is
less than 1.5m. Carry out pairing operation again.
• Make the top of the remote controller face the speech
processor, and carry out pairing operation again.
• Reboot the remote controller, and repeat the
above-mentioned two operation steps.
• Contact the debugging doctor or Nurotron Company.
Hear more, Live better!
19 20

1) After-sale Service Institution: Zhejiang Nurotron Biotechnology Co., Ltd.
2) Address: No.17 Longtan Road, Yuhang District, Hangzhou, China
3) National Service Hotline: [phone]
14.2 Information on service institutions
When cochlear implant speech processor and its accessories reach the service life of the equipment,
it is required to dispose according to the regulations of the local environmental protection
department, or deliver the equipment to Nurotron Company for dispose.
The electromagnetic power emitted by cochlear implant speech processor is very low, which
doesn’t affect the operation of other equipment; in a strong electromagnetic field, it is
recommended to power off the cochlear implant speech processor.
All external components of the cochlear implant system are MR Unsafe. Patients must remove
them before entering the MRI room.
The information related to other medical/operation methods, sports & games, electrostatic
protection, electromagnetic interference and safety system is shown in the Operation Manual of
Cochlear Implants.
12.3 Other Preventive Measures
All buyers of Nurotron Cochlear Speech Processor have a right to the after-sale service provided by
Nurotron Company, which covers:
1) Provide special after-sale service personnel for customer's after-sale service work;
2) Instruct customers on common knowledge and operation methods of Nurotron cochlear system;
3) Recommend customers professional rehabilitation experts and advanced rehabilitation centers in
China;
4) Assist customers in post-operative speech rehabilitation evaluation;
5) Timely provide customers update information and materials on Nurotron Company's cochlear
products;
6) Set up an archive for customer, and periodically trace and pay return visits to customers, so as to
facilitate their information inquiry;
7) Assist customers incoordination work with operation hospitals;
8) Provide free repair service for Nurotron cochlear system within the warranty period, and
guarantee the lifetime service;
9) Provide replacement work for components;
10) Provide components and parts of Nurotron cochlear system to customers at their own expenses.
14.1 Service content
14 After-sales Service Information
13
Manufacturer's and Authorized representative in the European Community Information
Zhejiang Nurotron Biotechnology Co., Ltd.
No.17 Longtan Road, Yuhang District, Hangzhou, Zhejiang 311121, China
National Service Hotline: [phone]
Website：http://www.nurotron.com
BIOTECH INNOVATION & SOLUTIONS, S.L.
Escoles Pies 103, 08017 Barcelona, España
EC REP
battery, or drop it down on the hard floor.
5) The BTE battery adopts the lithium ion cell. Keep away from the fire. In the fire, the battery may
explode.
6) In case of leakage on battery, the skin or eye shall not be in contact with the leaked fluid. Once
exposed, immediately wash with clear water, and go to hospital for treatment. After the battery is
disposed, please immediately wash hands.
7) Do not place the battery in the drying box for a long time.
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21 22
Operation Manual of
Cochlear Implant Speech Processor

The following symbols are printed on the assembly or package of Enduro cochlear implant speech
processor:
This electrical medical equipment needs special precautions regarding EMC and put into service
according to the EMC information provided in the user manual; The equipment conforms to this
IEC 60601-1-2:2014 standard for both immunity and emissions. Nevertheless, special precautions
need to be observed:
The equipment with no ESSENTIAL PERFORMANCE is intended used in Home healthcare
environment.
WARNING: Use of this equipment adjacent to or stacked with other equipment should be
avoided because it could result in improper operation. If such use is necessary, this equipment and
the other equipment should be observed to verify that they are operating normally.
The use of accessories, transducers and cables other than those specified or provided by the
manufacturer of this equipment could result in increased electromagnetic emissions or decreased
electromagnetic immunity of this equipment and result in improper operation.
WARNING: Portable RF communications equipment (including peripherals such as antenna
cables and external antennas) should be used no closer than 30 cm (12 inches) to any part of the
Endure, including cables specified by the manufacturer. Otherwise, degradation of the performance
of this equipment could result.
STATEMENT: For the purpose of its operation, the equipment has wireless communication
function, it includes RF transmitter and receiver, 2.4GHz, Pulse modulation.
When the AC input voltage is interrupted, the equipment will stop battery charging and if the
power supply restored, it should be recovered automatically, this degradation could be accepted
because it will not lead to unacceptable risks and it will not result in the loss of basic safety or
essential performance.
Important information regarding Electro Magnetic Compatibility (EMC)
15 Mark Symbols
Symbol Description
Refer to the manual
Fragile, handle with care
Humidity limitation for storage
and transport
Temperature limitation for storage
and transport
IP waterproof level
Prevent the external solid whose diameter
is more than or equal to 1mm to achieve
waterproof effect
General warning sign
Symbol Description
Should not be littered with
household waste, must be deliver
to recycle bin for recycling
Comply with the Directive 9
0/385/EEC
Authorized representative in the
European Community
Manufacturer
Date of manufacture
Serial number
Type BF applied part
Reference Number
Keep away from sunlight
Keep dry
Non-ionizing radiation
All external components of the
cochlear implant system are MR
Unsafe. Patients must remove them
before entering the MRI room
Cable Max. cable length,
Shielded/unshielded Number Cable classification
Signal
DC Power
DC Power
1 Set
1 Set
1 Set
Unshielded
Unshielded
Unshielded
0.28m
0.82m
0.82m
Signal Line
DC Power Line (USB Cable)
for remote control
DC Power Line (USB Cable)
for charger base
Below cables information are provided for EMC reference.
16 Guidance and Manufacturer’s Declaration
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23 24

Phenomenon Compliance Electromagnetic environment
CISPR 11
Group 1, Class B
IEC 61000-3-2
Class A
IEC 61000-3-3
Compliance
Home healthcare environment
Home healthcare environment
Home healthcare environment
RF emissions
Harmonic distortion
AVoltage fluctuations
and flicker
EMI Compliance Table (Table 1)
Table 1 - Emission
Phenomenon Basic EMC standard Immunity test levels
±2 kV contact
±8kV air
Home healthcare environment
10V/m
80MHz-2.7GHz
80% AM at 1kHz
Refer to table 3
30A/m
50Hz or 60Hz
IEC 61000-4-2
IEC 61000-4-3
AIEC 61000-4-3
IEC 61000-4-8
Electrostatic
Discharge
Radiated RF EM field
Rated power frequency
magnetic fields
Proximity fields from RF
wireless communications
equipment
EMS Compliance Table (Table 2-4)
Table 2 - Enclosure Port
Phenomenon Basic EMC standard Immunity test levels
±2 kV
100kHz repetition frequency
Home healthcare environment
±0.5 kV, ±1 kV
3V, 0.15MHz-80MHz
6V in ISM bands and amateur radio
bands between 0.15MHz and 80MHz
80%AM at 1kHz
0% UT; 0.5 cycle
At 0º, 45º, 90º, 135º, 180º, 225º, 270º and 315º
0% UT; 1 cycle and 70% UT;
25/30 cycles
Single phase: at 0º
IEC 61000-4-4
IEC 61000-4-5
IEC 61000-4-6
IEC 61000-4-11
IEC 61000-4-11 0% UT; 250/300 cycles
Electrical fast
transients/burst
Surges Line-to-line
Voltage dips
Voltage interruptions
Conducted disturbances
induced by RF fields
Test frequency
(MHz)
Band
(MHz)
Immunity test levels
Home healthcare environment
385
450
710
745
780
810
870
930
1720
1845
1970
2450
5240
5500
5785
380-390
430-470
704-787
800-960
1700-1990
2400-2570
5100-5800
Pulse modulation 18Hz, 27V/m
FM, ±5kHz deviation, 1kHz sine, 28V/m
Pulse modulation 217Hz, 9V/m
Pulse modulation 18Hz, 28V/m
Pulse modulation 217Hz, 28V/m
Pulse modulation 217Hz, 28V/m
Pulse modulation 217Hz, 9V/m
Table 3 – Proximity fields from RF wireless communications equipment
Table 4 – Input A.C. power Port
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25 26
Operation Manual of
Cochlear Implant Speech Processor

Product Reference Product Name Picture
CP02.2130
CP02.2145
CP02.2121
CP02.2122
CP02.2123
CP02.2124
CP02.2125
CP02.2126
CP02.2127
CP02.2147
CP02.2136
CP02.2137
CP02.2138
CP02.2139
CP02.2140
CP02.2176
CP02.2148
Enduro Charging Stand
Enduro Remote Control
Enduro External Magnet (1#)
Enduro External Magnet (2#)
Enduro External Magnet (3#)
Enduro External Magnet (4#)
Enduro External Magnet (5#)
Enduro External Magnet (6#)
Enduro External Magnet (8#)
Enduro Earhook
Enduro Transmission Wire (6cm）
Enduro Transmission Wire (8cm）
Enduro Transmission Wire (10cm）
Enduro Transmission Wire (20cm）
Enduro Transmission Wire (28cm）
Enduro Waterproof case
Enduro Signal processing unit button assembly
17 Nurotron cochlear implant system component list
COCHLEAR IMPLANT CS-10A (SD)*
COCHLEAR IMPLANT CS-10A (TS)
COCHLEAR IMPLANT CS-10A (TM)
COCHLEAR IMPLANT CS-10A (TL)
Sterile non-magnetic metal plug
Implant magnet
Product Reference Product Name Picture
Plastic Card
Elastic Bandage
Medical Tape
MRI Examination Kit
CP01.0016
CP01.0018
CP01.0019
CP01.0020
CP00.0063
CP01.0017
CP00.0066
CP00.0065
CP00.0067
CP02.2131
CP02.2132
CP02.2134
Enduro Signal Processing Unit
Enduro Rechargeable BTE Battery
Enduro Transmission Coil
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27 28
Operation Manual of
Cochlear Implant Speech Processor

Product Reference Product Name Picture
Picture
Product Reference Product Name Picture
CP00.0081
CP00.0080
CP00.0079
CP00.0039
CP00.0078
CP02.2057
CP02.2040
CP02.2041
CP02.2042
CP02.2043
CP02.2044
CP02.2045
CP02.2046
CP02.2047
CP02.2048
CP02.2049
CP02.2050
Programming Cable for Enduro
Programming Cable for VENUS (NSP-60C)
Fitting Cable USB
Programming Box
Software NuroSound NS V1.0 (USB )
VENUS Speech Processor Unit NSP – 60C
Transmission Coil VENUS 60C (6cm)
Transmission Coil VENUS 60C (8cm)
Transmission Coil VENUS 60C (10cm)
Transmission Coil VENUS 60C (20cm)
Transmission Coil VENUS 60C (28cm)
VENUS 60C External magnet 2#
VENUS 60C External magnet 3#
VENUS 60C External magnet 4#
VENUS 60C External magnet 5#
VENUS 60C External magnet 6#
VENUS 60C External magnet 8#
CP02.1038
CP02.1039
CP02.1041
CP02.1046
CP02.1045
CP00.0026
CP02.1025
CP02.1023
CP00.0082
CP00.0001
CP02.1022
VENUS 60C Rechargeable BTE Battery
VENUS 60C Body-worn Rechargeable Battery
VENUS 60C Connection wire
for Rechargeable Body-worn Battery
VENUS 60C BTE Batteries Charging Stand
UE Plug Adaptor for BTE Batteries Charger
BTE Charger Power Cable
VENUS 60C Earhook for BTE
VENUS 60C BTE Microphone cover & filter
VENUS 60C Battery Storage Body-worn Bag
RF Signal Tester
Drying Case
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29 30
Operation Manual of
Cochlear Implant Speech Processor

*CS-10A (SD) is also noted as CS-10A in internal documents of Nurotron.
Picture
Picture
Product Reference Product Name Picture
CP02.1034
CP02.1035
CP02.1036
VENUS 60C BTE Battery Extension Wire (20cm)
VENUS 60C BTE Battery Extension Wire (30cm)
VENUS 60C BTE Battery Extension Wire (40cm)
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31 32
Operation Manual of
Cochlear Implant Speech Processor