Metro rolling stock electronics repair
In-house repair, fault finding and reverse engineering of electronic assemblies for metro rolling stock.
What we repair
Rolling stock braking systems
Door control units
Cabin air conditioning
Passenger announcement systems
Driver navigation and indication panels
Depot infrastructure equipment
Repair examples
Typical cases from our practice, without naming a specific customer.
Door control board failure
Problem: Doors on one car started closing with a delay on certain runs - the fault was intermittent, which made it hard for the depot to diagnose on its own.
Solution: BoardMaster diagnostics pinpointed the damaged component on the door control board without replacing the whole unit, and the train returned to service within days.
Discontinued braking system board
Problem: The original braking system board for the operated train series was no longer manufactured, and the supplier offered only a full unit replacement.
Solution: We restored the damaged part of the board instead of waiting on a discontinued model - the braking system returned to service without replacing the whole unit.
Preventive check before a peak season
Problem: The depot requested a preventive check of passenger announcement and indication boards ahead of a planned increase in service frequency.
Solution: We diagnosed the batch of boards on BoardMaster and fixed early-stage faults before they could cause a failure on the line.
How the repair works
From intake to return to service, in six clear steps.
Equipment intake
We receive the equipment at the workshop or arrange transportation from anywhere in Russia.
BoardMaster diagnostics
We pinpoint the fault at the component level on certified BoardMaster equipment.
Approval
We confirm the cost and timeline and start work once you approve it.
Repair and soldering
We restore the damaged part: soldering, BGA/SMD reballing, component replacement.
Testing
We test the repaired unit under load and confirm it works.
Handover
We hand over the finished equipment or arrange return shipping.
Why repair, not replacement
Less train downtime
BoardMaster diagnostics locates the fault in one pass instead of a long process of elimination.
Repair without waiting on discontinued boards
We restore units for which the supplier no longer has a direct replacement.
Prevention instead of sudden failures
Regular checks of depot boards reduce the rate of sudden stoppages on the line.
Cheaper than a full unit replacement
Repairing the damaged component costs a fraction of a new assembled unit.
Need a repair in this area?
Leave a request, describe the equipment and the fault, and we will get back to you with a diagnostics plan.
Other repair services
Electric train electronics repair
Electronics for electric trains and RA-1, RA-2 diesel railcars
Ship and dock equipment repair
Electronics repair for ships and dock equipment
Aviation electronics repair
Repair of electronic modules for ground support equipment used in aircraft servicing
CNC machine electronics repair
Electronics repair for factory equipment and CNC machines
Oil and gas plant electronics repair
Electronics repair for oil and gas extraction and processing plants
Automotive industry electronics repair
Repair of machine modules, power supplies, frequency drives and robot controllers on automotive production lines