TOKIMEC Gyro Compass
Tokyo Keiki Inc. — formerly branded TOKIMEC
Refurbished
Manufacturer: Tokyo Keiki Co., Ltd. / TOKIMEC
Country of Origin: Japan
Exact Model: TG-6000
Product Type: Marine Gyrocompass / True Heading Reference System
Main Units: Master Compass + Control Unit
Marine Application: Vessel true-heading reference and heading distribution to bridge/navigation equipment
Current Status: Discontinued model
Manufacturer-listed Alternative: TG-8100 Series
The supplied SM MARINE SERVICE™ photograph clearly shows two TG-6000 master gyrocompass units together with two TG-6000 gyro control boxes, marked No.1 and No.2.
The Tokyo Keiki / TOKIMEC TG-6000 is a proven marine gyrocompass designed to provide a vessel with a stable true-heading reference.
The TG-6000 was developed as a compact system consisting primarily of a Master Compass and Control Unit. Contemporary TG-6000 literature emphasizes long service life, low power consumption and multiple heading/output signals.
Although the TG-6000 is now an older system, many vessels continue to operate it. Tokyo Keiki's own discontinued-products information states that production ended in July 2003 and identifies the TG-8100 Series as the alternative product.
A gyrocompass provides the vessel with a true-heading reference independent of the ship's magnetic compass.
The TG-6000 master compass contains the precision gyro mechanism and associated control electronics. Its heading information can then be distributed to other shipboard navigation systems.
Typical connected equipment can include:
Radar / ARPA • Autopilot • ECDIS • VDR / S-VDR • AIS • Heading Repeaters • Bearing Repeaters • Steering and Bridge Systems
The TG-6000 service documentation covers the complete signal system, master-compass circuits, control-box power supply, operating panel, repeater compass and internal wiring.
The Tokyo Keiki TG-6000 was designed around several practical marine-navigation requirements:
The TG-6000 control panel provides operating indications including RUNNING, STANDBY, TRUE, COMPASS, SPEED, TURN, LATITUDE and ALARM, together with display, setting, alarm acknowledgement and lamp-test controls.
The master compass contains the main gyro mechanism responsible for establishing the heading reference.
This is one of the most critical precision components within the master compass.
The control unit provides operational status, heading information, settings and alarm functions.
The service documentation identifies numerous electronic assemblies, including:
MCU PWB • POWER PWB • TERM PWB • SCU PWB • INVERTER PWB • PMCU PWB • HRZC PWB • OPT PWB • OPS PWB • STMD PWB.
Remote heading repeaters allow gyro heading to be displayed at different locations around the bridge or vessel.
These components support transmission of gyro heading to compatible repeaters and other equipment.
The TG-6000 can be found aboard many types of commercial vessels, including:
Bulk Carriers • Tankers • Container Ships • General Cargo Ships • Offshore Vessels • Passenger Ships • Merchant Vessels
Accurate gyro heading can be required simultaneously by radar, autopilot, ECDIS and other bridge equipment. A TG-6000 fault can therefore affect several interconnected navigation systems.
Check the incoming supply, breakers/fuses, power connections, control-box power circuit and associated POWER PWB before condemning the master compass.
Inspect the control unit, display electronics, internal connectors, power supplies and communication between the master compass and control box.
Possible areas requiring investigation include the sensitive element, gyro mechanical assembly, correction inputs, internal electronics, power supply and configuration.
Heading should be compared against another reliable heading reference during troubleshooting.
Check startup operation, gyro mechanism, sensitive element, bearings and control electronics.
A correct heading at the master compass but incorrect/no heading at the repeater may indicate a repeater circuit, step amplifier, interface, cable or output problem rather than failure of the gyro itself.
Inspect connectors, wiring, terminals, PCB/PWB connections and power supply stability.
The TG-6000 service manual contains dedicated sections for Failure and Necessary Measures, user error codes, an error-code list and detailed electrical checks.
A Zero-Cross Error is specifically documented in the TG-6000 service manual, confirming that it is a genuine model-specific service condition rather than a generic gyro fault.
Exact troubleshooting should follow the relevant manual procedure rather than replacing parts based only on the displayed error.
Routine TG-6000 maintenance should include:
The TG-6000 service manual contains procedures covering power-supply voltage confirmation, sensitive-element removal, gimbal-bearing work, horizontal-axis bearing work, phantom-ring bearing servicing and PCB/PWB replacement.
Because the TG-6000 has been discontinued, good replacement components and tested used systems can be particularly valuable for vessels that continue to operate this gyrocompass. Tokyo Keiki currently identifies the TG-8100 Series as the alternative product.
SM MARINE SERVICE™ can support sourcing, subject to availability, for:
Complete TG-6000 Gyrocompass • Master Compass • Control Unit • Control Box • Sensitive Element • Gyrosphere • Repeater Compass • Step Amplifier • Operating Panel • Display • POWER PWB • MCU PWB • SCU PWB • PMCU PWB • INVERTER PWB • TERM PWB • HRZC PWB • Other PCB/PWB Assemblies • Power Supply Components • Internal Mechanical Parts • Cables • Connectors
Equipment may be available as New Old Stock, Used, Tested Working, Refurbished or Reconditioned, depending on market and warehouse availability.
For replacement inquiries, sending photographs of the existing nameplate, control box, master compass, serial number and failed component helps confirm compatibility.
The main reason is practical: many existing vessels already have TG-6000 infrastructure integrated with their bridge systems.
If the master compass, sensitive element, control unit or PCB can be repaired or replaced, maintaining the existing installation may avoid the additional work associated with replacing an entire gyrocompass system and adapting all connected interfaces.
This continuing demand also explains why TG-6000 master compasses, control boxes, gyrospheres and electronic boards remain important marine spare parts despite the model's discontinued status.
What is the TOKIMEC TG-6000?
The TG-6000 is a marine gyrocompass manufactured by Tokyo Keiki/TOKIMEC for providing true-heading information aboard ships.
Who manufactures the TG-6000 gyrocompass?
It was manufactured by Tokyo Keiki, historically well known under the TOKIMEC brand.
Is the TG-6000 still manufactured?
No. Tokyo Keiki's official discontinued-product information lists TG-6000 production as ending in July 2003.
What is the replacement for the TG-6000?
Tokyo Keiki identifies the TG-8100 Series as the alternative product.
Where can I buy a TG-6000 gyrocompass?
SM MARINE SERVICE™ can assist with sourcing complete TG-6000 systems and replacement components subject to stock availability.
Can I buy a used TG-6000?
Yes. Used, tested, refurbished and reconditioned TG-6000 equipment may be sourced depending on availability.
Are TG-6000 gyrospheres and sensitive elements available?
They may be available through the marine replacement/spares market. Exact compatibility should be confirmed before purchase.
Are TG-6000 PCBs available?
The system uses several dedicated PWB assemblies. Replacement boards may be sourced depending on part number and availability.
What are common TG-6000 problems?
Typical service concerns include power problems, display faults, unstable or incorrect heading, gyro startup/settling problems, repeater-output faults, electronic-board failures and documented error conditions.
Can SM MARINE SERVICE™ supply TG-6000 spare parts worldwide?
Yes, SM MARINE SERVICE™ supports international marine-equipment sourcing and worldwide shipping subject to availability.
The Tokyo Keiki / TOKIMEC TG-6000 Gyrocompass is a marine true-heading system consisting principally of a master compass and control unit. Designed for commercial ship navigation, it can supply heading information to bridge equipment including autopilot, radar, repeaters and other navigation systems. Although production ended in 2003, TG-6000 complete units, master compasses, control boxes, gyrospheres, sensitive elements, electronic boards and other replacement parts remain relevant to vessels maintaining existing installations.
Marine Automation & Navigation Equipment Supplier
Available Condition:
• New Equipment • Used Equipment • Refurbished Equipment • Reconditioned Equipment
Stock Location:
• Bangladesh • China
Services:
• Worldwide Shipping • Technical Support • Spare Parts Supply • Marine Equipment Sourcing
Contact Information
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Mobile / WhatsApp / Viber: +88 01818 929292
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