Nexo GEO M10 User manual

DP2660-03a-DI

GEO M10 Series – MSUB15

Accessories

Service Manual

Page 2/29 PLEASEREAD CAREFULLYBEFORE PROCEEDING

PLEASE READ CAREFULLY BEFORE PROCEEDING

IMPORTANT NOTICE

This manual has been provided for the use of authorized NEXO Retailers and their service personnel. It has been

assumed that basic service procedures inherent to the industry, and more specifically NEXO Products, are

already known and understood by the users, and have therefore not been restated.

Failure to follow appropriate service and safety procedures when servicing this product may result in personal

injury, destruction of expensive components and failure of the product to perform as specified. For these

reasons, we advise all NEXO products owners that all service requires should be performed by an authorized

NEXO Retailer or the appointed service representative.

This presentation or sale of this manual to any individual or firm does not constitute authorization, certification,

recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research

engineering and service departments of NEXO are continually striving to improve NEXO products. Modifications

are, therefore inevitable and changes in specifications are subject to change without notice or obligation to

retrofit. Should any discrepancy appear to exist, please contact the distributor’s Service.

Please check the NEXO web site www.nexo-sa.com on a regular basis for latest update.

BASIC PRECAUTIONS

Do not open the speaker system or attempt to disassemble the internal parts or modify them in any way. The

speaker system contains no user-serviceable parts. If it should appear to be malfunctioning or damaged,

discontinue use immediately and have it inspected by qualified NEXO service personnel.

Do not expose the speaker system to direct rain do not use it near water or in wet conditions. Do not place

containers with liquid on speaker system as they might spill into openings. If any liquid such as water seeps into

the speaker system, have it inspected by qualified NEXO personnel.

SYSTEM DEPLOYMENT SAFETY RULES

Read User Manual before deployment. Before use of enclosed speaker system, please ensure that anyone involved

in system deployment understands the rigging –stacking –pole mounting safety rules as described in the speaker

system User Manual. Failure to do this exposes people to potential injury or death.

Read this manual before servicing the product.

Always consult qualified NEXO personnel if the device installation requires construction work and make sure to

observe the following precautions:

- Choose mounting hardware and an installation location that can support the weight of the speaker system;

- Do not use speaker system handles for suspended installation;

- Do not expose speaker system to excessive dust or vibration, or extreme cold or heat to prevent possibility of

component damage;

- Do not place the speaker system in an unstable position from which it might fall accidentally.

Only use NEXO approved spare parts.

Service the speaker system periodically, at least once a year.

Service Rigging parts at least once a year, and control them each time you Rig a system.

Application for certification of Rigging parts are submit to TÜV Deutschland.

PLEASEREAD CAREFULLYBEFOREPROCEEDING Page 3/29

HIGH SOUND PRESSURE LEVELS

Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary considerably in

susceptibility to noise-induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently

intense noise for a sufficient period of time. The U.S. Government’s Occupational and Health Administration (OSHA)

has specified the following permissible noise level exposures: Sound Duration Per

Day In Hours

Sound Level dBA, Slow Response

100

1 ½

102

105

110

¼ or less

115

DISPOSAL OF OLD ELECTRICAL & ELECTRONIC EQUIPMENT

This symbol on the product or on its packaging indicates that it shall not be treated as

household waste. Instead it shall be handed over to the applicable collection point for the

recycling of electrical and electronic equipment. By ensuring this product is disposed of

correctly, you will help prevent potential negative consequence for the environment and human

health, which could otherwise be caused by inappropriate waste handling of this product. The

recycling of materials will help to conserve natural resources. For more detailed information

about recycling of this product, please contact your local city office, your household waste

disposal service or the shop where you purchased the product.

Page 4/29 CONTENTS

CONTENTS

PLEASE READ CAREFULLY BEFORE PROCEEDING............................................................................................................2

CONTENTS ......................................................................................................................................................................................4

1ACCESSORIES........................................................................................................................................................................5

2GENERAL INSTRUCTIONS ................................................................................................................................................6

2.1 SAFETY FIRST ....................................................................................................................................................................................6

2.2 MECHANICAL MAINTENANCE OF THE SYSTEM.............................................................................................................................6

2.3 SPEAKER CONNECTION ....................................................................................................................................................................6

2.4 RECONE PROCEDURE:LF DRIVER HPB10N R2.........................................................................................................................7

2.5 RECONE PROCEDURE:HPB15NF-078........................................................................................................................................8

3METHOD OF DISASSEMBLY GEOM10...........................................................................................................................9

3.1 FRONT CABINET ............................................................................................................................................................................ 10

3.2 SIDE RIGGING ................................................................................................................................................................................. 11

3.3 PASSIVE FILTER.............................................................................................................................................................................. 11

3.4 REAR AND INSIDE RIGGING .......................................................................................................................................................... 12

4METHOD OF DISASSEMBLY MSUB15........................................................................................................................ 13

4.1 GRILLE............................................................................................................................................................................................. 13

4.2 RIGGING........................................................................................................................................................................................... 14

4.3 15’’ DRIVER.................................................................................................................................................................................... 15

5SPARE PARTS .................................................................................................................................................................... 16

5.1 GEO M10....................................................................................................................................................................................... 16

5.2 GEO M10-I.................................................................................................................................................................................... 18

5.3 MSUB15 ........................................................................................................................................................................................ 20

5.4 MSUB15-I..................................................................................................................................................................................... 22

5.5 GMT-EXBARM10L .................................................................................................................................................................... 23

5.6 GMT-LBUMPM10...................................................................................................................................................................... 23

5.7 VNI-BUMPM10........................................................................................................................................................................... 24

5.8 VNT-BUMPM10 ......................................................................................................................................................................... 24

5.9 VNT-EXBARM10........................................................................................................................................................................ 25

5.10 VNT-GSTKM10L –VNT-GSTKM10S................................................................................................................................... 25

5.11 VNT-GSTKM10M12L –VNT-GSTKM10M12S................................................................................................................ 25

5.12 VNT-MNSTKM10....................................................................................................................................................................... 26

5.13 MST-WBMSUB15...................................................................................................................................................................... 26

5.14 GMT-3CASEM10 /GMT-6CASEM10 /MST-2CASEMSUB15 ................................................................................... 27

6USER NOTES....................................................................................................................................................................... 28

ACCESSORIES Page 5/29

1ACCESSORIES

A full range of accessories that provides safe, flexible and simple means of installing GEO M10 and MSUB15 in fixed installations as well

as in touring applications

VNI-BUMPM10

VNT-BUMPM10

VNT-EXBARM10

VNT-MNSTKM10

VNT-GSTKM10L

VNT-GSTKM10S

VNT-GSTKM10M12L

VNT-GSTKM10M12S

VNI-LNKM61018

GMT-LBUMPM10

GMT-EXBARM10L

GMT-FLGM10

GMT-3CASEM10

GMT-6CASEM10

MST-WBMSUB15

MST-COVMSUB15

MST-2CASEMSUB15

Page 6/29 GENERAL INSTRUCTIONS

2GENERAL INSTRUCTIONS

2.1 Safety first

The Rigging System is a professional precision tool set, and should be handled with extreme care. Only persons who are fully

conversant with the operation of the Rigging System and provided with suitable safety equipment should deploy it. Misuse of

Rigging System could lead to dangerous consequences.

Used and maintained correctly, the Rigging System will give many years of reliable service in portable systems.

2.2 Mechanical maintenance of the system

GEO M10 and MSUB15 are a precision piece of equipment and requires regular attention to maintenance in order to give long and

reliable service. NEXO recommends regular testing of loudspeaker rigging components, preferably using a suitable test rig

coupled with a visual inspection.

These fasteners should be regularly checked and tightened as necessary.

Routine inspection is required for all entertainment rigging systems in order to properly maintain the systems and provide a safe

working environment.

Inspect components for damage or loose hardware visible, if defects are found, the component must be discarded.

All technical operations such as heat or surface treatment, grinding, welding are prohibited on Rigging components.

After cleaning, the rigging system must be treated with a suitable lubricant to prevent rusting. NEXO recommends the use of

ScottoilRFS365 which is a water-based lubricant with a mixture of machine oil, surfactant and anti-rust treatment.

The metal components of the GEO M10 and MSUB15 should not show any signs of deformation, indentation, or rust. They must

be securely fixed to the cabinet.

Any cabinet incorporating a part showing signs of nonconformity must be put aside and inspected by qualified service personnel.

Check the security features of the parts.

Once a year, it’s mandatory to check all the rigging parts

2.3 Speaker connection

2.3.1 GEO M10

2.3.2 MSUB15

Speakon

M1012 & M1025

1(-)



Through

1(+)



Through

2(-)



Geo M10 (-)

2(+)



Geo M10 (+)

Speakon

MSUB15

1(-)



MSUB15 (-)

1(+)



MSUB15 (+)

2(-)



Through

2(+)



Through

GENERAL INSTRUCTIONS Page 7/29

2.4 Recone procedure: LF driver HPB10N R2

Tools and materials required.

. Cutter (Stanley knife or similar)

. Chisel 15mm or 18mm

. Araldite 2014 (www.araldite.com)

. Masking tape & Double face adhesive tape

. Soldering iron & solder

. Testing facilities - Multimeter, signal generator, Amplifier

The repair procedure for bass drivers is almost the same one for other Nexo chassis loudspeakers.

1. Once the reason for failure has been established and a recone is necessary, strip the chassis in the normal way using

the cutter and chisel, ensuring that the coil gap is covered with tape. It is good practice to Vacuum or blow the dirt away

from the chassis before removing the tape.

2. Use double adhesive tape to further clean the gap. Repeat this process until tape comes out clean, it should be nothing

remain in the gap.

3. Apply the contact type adhesive without excesses, on the frame around the spider mounting surface in first and the

cone surround surface after.

4. Place the new cone assembly in the chassis, making sure the lead wires are aligned with the terminals.

5. Insert all the centring gauges (plastic shims) vertically and evenly spaced through the air gap, between voice coil and

pole center. Don’t let the glue go off. Immediately after, push down on the cone lightly to make sure the glue impregnates

both the spider and the surround.

6. Glue the gaskets in place with the same glue and making sure that there is into correct alignment with the mounting

holes in the chassis. Place a wooden board or another loudspeaker upside down on top of the repaired unit to keep

pressure on the glued gasket.! Let the glue cure for 24 hours!

7. Solder the braid wires to the terminals. Making sure solder does not run up the braid towards the cone. Remove the

centring gauges (shims) slowly.

8. Test the loudspeaker starting at a frequency of 40Hz and a low power level. Increase the level to around 13v and listen

for any rubbing noises and distortion.

9. If all is OK the dust cap can be fixed in place. Use a piece of sticky tape folded over to form a ‘T’ shape and attach

inside the dust cap. Apply a bead of glue around the lip of the cap. Place a small weight on top of it to ensure it meets

the cone all around.

10. Once the glue is dry, using a brush to apply the waterproof treatment (the small bottle) on the cone and the dust cap

(only on the front face).

Page 8/29 GENERAL INSTRUCTIONS

2.5 Recone procedure: HPB15NF-078

Tools and materials required.

. Cutter (Stanley knife or similar)

. Chisel 15mm or 18mm

. Araldite 2014 (www.araldite.com)

. Masking tape & Double face adhesive tape

. Soldering iron & solder

. Testing facilities - Multimeter, signal generator, Amplifier

The repair procedure for bass drivers is almost the same one for other Nexo chassis loudspeakers.

1. Once the reason for failure has been established and a recone is necessary, strip the chassis in the normal way using

the cutter and chisel, ensuring that the coil gap is covered with tape. It is good practice to Vacuum or blow the dirt away

from the chassis before removing the tape.

2. Use double adhesive tape to further clean the gap. Repeat this process until tape comes out clean, it should be nothing

remain in the gap.

3. Apply the contact type adhesive without excesses, on the frame around the spider mounting surface in first and the

cone surround surface after.

4. Place the new cone assembly in the chassis, making sure the lead wires are aligned with the terminals.

5. Insert all the centring gauges (plastic shims) vertically and evenly spaced through the air gap, between voice coil and

pole center. Don’t let the glue go off. Immediately after, push down on the cone lightly to make sure the glue impregnates

both the spider and the surround.

6. Glue the gaskets in place with the same glue and making sure that there is into correct alignment with the mounting

holes in the chassis. Place a wooden board or another loudspeaker upside down on top of the repaired unit to keep

pressure on the glued gasket.! Let the glue cure for 24 hours!

7. Solder the braid wires to the terminals. Making sure solder does not run up the braid towards the cone. Remove the

centring gauges (shims) slowly.

8. Test the loudspeaker starting at a frequency of 40Hz and a low power level. Increase the level to around 13v and listen

for any rubbing noises and distortion.

9. If all is OK the dust cap can be fixed in place. Use a piece of sticky tape folded over to form a ‘T’ shape and attach

inside the dust cap. Apply a bead of glue around the lip of the cap. Place a small weight on top of it to ensure it meets

the cone all around.

10. Once the glue is dry, using a brush to apply the waterproof treatment (the small bottle) on the cone and the dust cap

(only on the front face).

METHOD OF DISASSEMBLY GEOM10 Page 9/29

3METHOD OF DISASSEMBLY GEOM10

TOOLS:

Torx bits or wrench Tx20 / Tx25 / Tx30 / Tx40 / Tx45

ALLEN Wrench (3).

10mm closed-end wrench or Hexagonal socket.

Tightening torque

➢T1: 3.5 Nm

➢T2: 5.5 Nm

Page 10/29 METHOD OF DISASSEMBLY GEOM10

3.1 Front Cabinet

GEOM10: Pull the lever to remove the grille on the side (attached with a

sling).

Remove the front cabinet (8 screws Tx25).

Tightening torque: T1

GEOM10-I: Remove the 4 screws (Tx25) to remove the grille.

Remove the front panel (8 screws Tx25).

Tightening torque: T1

Remove the HF driver from the wave guide by unscrewing the 4 nuts

(10mm).

Unscrew the 4 screws (Tx25), shift the 10 ‘’ to remove it.

Tightening torque: T1

LF: red (+) red / black (-)

HF: orange (+) / grey (-)

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