GK-5B - Electronic crankset BOSS - Free user manual and instructions
Find the device manual for free GK-5B BOSS in PDF.
| Product Type | Divided Pickup System for Electric Bass Guitar |
| Model Number | GK-5B |
| Brand | Boss (Roland) |
| Compatibility | Electric bass guitars (not for doubled strings or unusual tunings) |
| Output Jack | GK OUT (13-pin serial connector) |
| Number of Pickup Elements | 6 (one per string) |
| Installation Methods | Double-sided tape or screw mounting |
| Included Parts | Divided pickup, main unit, wood screws, springs, double-sided tape, pickup cushion, holders, spacers, screws |
| Weight (approx.) | 250 g (combined pickup and controller) |
| Dimensions (main unit, approx.) | 100 x 30 x 20 mm |
| Power Supply | Passive (no battery required; power from connected GK device) |
| Construction Material | Metal and plastic parts |
| Safety Precautions | Avoid exposure to extreme temperatures, moisture, and strong impact |
| Maintenance | Clean with soft dry cloth; do not use solvents |
| Warranty | Manufacturer's warranty against defects in materials and workmanship |
| Regulatory Compliance | FCC, CE, etc. (as per Roland products) |
| Intended Use | Connects to GK-compatible devices for guitar synthesis, MIDI, or modeling |
| Documentation | User manual, quick start video available online |
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USER MANUAL GK-5B BOSS
© 2023 Roland Corporation
Before using this unit, carefully read "USING THE UNIT SAFELY" and "IMPORTANT NOTES". After reading, keep the document(s) where it will be available for immediate reference.
About the GK-5B Warranty
Roland guarantees the GK-5B (and all included parts) to be free of defects in materials and workmanship. Contact your retailer or nearest Roland Service Center if repairs become necessary. Roland cannot be responsible for any damage caused to your bass or the GK-5B as a result of your attempt to install or remove the GK-5B. If you are not confident with your ability to properly install the Pickup or Controller unit (especially where drilling is involved), please contact your Roland retailer or nearest Roland Service Center.
Panel Descriptions

Divided pickup
This pickup detects the vibrations
of the bass strings. This part
should be installed to use near the bridge of the bass guitar.

GK OUT jack
Connect the GK-compatible
device to this connector.
* Never connect anything other than the leading leader of
than the dedicated serial GK cable.

Video Manual
See the "Quick Start Video" for how to install the GK-5B.
https://roland.cm/gk-5b_qs

Checking the Parts
Confirm that the package contains all of the following parts for installing the GK-5B.

| Parts Qty. | |
| 1 Wood screw 3 x 20 mm 2 | |
| 2 Spring 2 | |
| 3 Double-sided tape A (Main unit) | 2 |
| 4 Double-sided tape B (Pickup) | 2 |
| 5 Pickup cushion | 4 |
| 6 Holder A | 1 |
| 7 Holder B | 1 |
| 8 Pickup spacer A 2 | |
| 9 Pickup spacer B 5 | |
| 10 Pickup spacer C 4 | |
| 11 Screw 4 x 6 mm 1 | |
| 12 Flat-head screw 3 x 6 mm | 2 |
Points of Note When Installing the GK-5B
The GK-5B can be attached to and used with conventional electric basses. Please read the following precautions before installing the GK-5B.
Precautions before installing
- Do not use the GK-5B on basses with doubled strings or other highly customized basses, piccolo basses and other basses with unusual tunings, or basses with other non-metallic core strings. The pickup may not function properly in such cases.
• Make any adjustments to the bass neck, string height, and other such modifications before installing the GK-5B.
- Try placing the divided pickup and the main unit on the bass before actually attaching them to confirm that there will be no problem with the installation. - If only the double-sided tape is used to attach the main unit, shocks from rough handling during performances and from extended use will cause the tape to deteriorate, with the main unit shifting out of position as a result. Also, if the finish on your bass is less than perfect, you may discover that the finish is also removed when you later remove the tape. The supplied tape is intended to be used only very temporarily, to help you determine the optimum position for the main unit.
- With certain basses, the space between the pickup at the bridge position and the bridge itself is too narrow to allow installation of the divided pickup. In such instances, it may be possible to attach the pickup by modifying the bass (for example, by moving the bridge pickup more towards the neck to make room for the divided pickup); consult your bass dealer.
- When installing, be careful not to damage, drop or overturn the main unit.
Precautions when handling
- Before playing, be sure to wrap the cable around the strap near the end pin. This will prevent the excess strain on the cable that can end up damaging the bass or the GK-5B.
Attaching the Divided Pickup
There are two ways to attach the divided pickup.
See the "Quick Start Video" for details on installing this unit.
-
Attaching the divided pickup with Double-Sided Tape
-
Attaching the divided pickup with Screws
* Do not place any unnecessary strain on the cable connecting the divided pickup and the main unit. This may result in breaking. * Do not bend or twist the divided pickup. Use particular care when removing the pickup.
USING THE UNIT SAFELY
INSTRUCTIONS FOR THE PREVENTION OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS
About ⚠WARNING and ⚠CAUTION Notices
| WARNING | Used for instructions intended to alert the user to the risk of death or severe injury should the unit be used improperly. |
| CAUTION | Used for instructions intended to alert the user to the risk of injury or material damage should the unit be used improperly.* Material damage refers to damage or other adverse effects caused with respect to the home and all its furnishings, as well to domestic animals or pets. |
ALWAYS OBSERVE
WARNING
Do not disassemble or modify by yourself
Do not carry out anything unless you are instructed to do so in the owner's manual. Otherwise, you risk causing malfunction.
Do not repair or replace parts by yourself
Be sure to contact your dealer, a Roland service center, or an official Roland dealer.
For a list of Roland service centers and official Roland dealers, refer to the Roland website.
Do not use or store in the following types of locations
- Subject to temperature extremes (e.g., direct sunlight in an enclosed vehicle, near a heating duct, on top of heat-generating equipment); or are - Damp (e.g., baths, washrooms on wet floors); or are
- Exposed to steam or smoke; or are
- Subject to salt exposure; or are
- Exposed to rain; or are
- Dusty or sandy; or are
- Subject to high levels of vibration and shakiness: or are
- Placed in a poorly ventilated location.
Do not place in an unstable location
Otherwise, you risk injury as the result of the unit toppling over or dropping down.
Do not allow foreign objects or liquids to enter unit; never place containers with liquid on unit
Do not place containers containing liquid (e.g., flower vases) on this product. Never allow foreign objects (e.g., flammable objects, coins, wires) or liquids (e.g., water or juice) to enter this product. Doing so may cause short circuits
faulty operation, or other malfunctions.
Be cautious to protect children from injury
Always make sure that an adult is on hand to provide supervision and guidance when using the unit in places where children are present, or when a child will be using the unit.
WARNING
Turn off the unit if an abnormality or
malfunction occurs
In the following cases,
immediately turn off the power and contact way deals a Poland
service center, or an official Roland dealer for
service
• If smoke or unusual odor occurs; or
- Objects have fallen into, or liquid has
been spilled onto the unit; or
• The unit has been exposed to r
- Otherwise has become wet), of - The unit does not appear to operate
normally or exhibits a marked change in
performance.
For a list of Roland service centers and official
Roland dealers, refer to the Roland website.
Do not drop or subject to strong impact
Otherwise, you risk causing
damage or malfunction.

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Route all power cords and cables in such a
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Injury could result if someone
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the unit to fall or topple.
Avoid climbing on top of the unit, or
placing heavy objects on it
Otherwise, you risk injury as the
result of the unit topping over 0 dropping down.
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Disconf the unit
Damage or malfunction may resu
if you fail to disconnect all cables
before moving the unit.
Keep small items out of the reach of
children
To prevent accidental ingestion of
the parts listed below, always keep
them out of the reach of small children.
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IMPORTANT NOTES
Placement
- Using the unit near power amplifiers (or other equipment containing large power transformers) may induce hum. To alleviate the problem, change the orientation of this unit; or move it farther away from the source of interference.
- This unit may interfere with radio and television reception. Do not use this unit in the vicinity of such receivers.
- Noise may be produced if wireless communications devices, such as cell phones, are operated in the vicinity of this unit. Such noise could occur when receiving or initiating a call, or while conversing. Should you experience such problems, you should relocate such wireless devices so they are at a greater distance from this unit, or switch them off.
- When moved from one location to another where the temperature and/or humidity is very different, water droplets (condensation) may form inside the unit. Damage or malfunction may result if you attempt to use the unit in this condition. Therefore, before using the unit, you must allow it to stand for several hours, until the condensation has completely evaporated.
- Do not place containers or anything else containing liquid on top of this unit. Also, whenever any liquid has been spilled on the surface of this unit, be sure to promptly wipe it away using a soft, dry cloth.
Maintenance
- Never use benzine, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration and/or deformation.
Additional Precautions
- Use a reasonable amount of care when using the unit's buttons, sliders, or other controls; and when using its jacks and connectors. Rough handling can lead to malfunctions.
- When disconnecting all cables, grasp the connector itself—never pull on the cable. This way you will avoid causing shorts, or damage to the cable's internal elements.
- When disposing of the packing carton or cushioning material in which this unit was packed, you must observe the waste disposal regulations that apply to your locality.
- This document explains the specifications of the product at the time that the document was issued. For the latest information, refer to the Roland website.
Intellectual Property Right
• This product is using the open source
software from a third party.
• Copyright © 2009-2019 Arm Limited. All rights reserved.
Licensed under the Apache License
Version 2.0 (the "License");
You may obtain a copy of the License at
http://www.apache.org/licenses/
LICENSE-2.0
• Copyright © 2018 STMicroelectronics.
All rights reserved.
This software component is licensed by ST under BSD 3-Clause license, the
"License";
You may obtain a copy of the License at
https://opensource.org/licenses/BSD-3-
Clause
- Roland and BOSS are either registered
Trademarks of Trademarks of Holland Corporation in the United States and/or
other countries.
• Company names and product names
appearing in this document are registered trademarks or trademarks of their
respective owners.
Patent: roland.cm/patents