Mitsubishi Electric · Mail-in from California
Mitsubishi Servo Amplifier Repair in California
Component-level repair for Mitsubishi servo amplifiers: the massive MR-J2S installed base plus MR-J3, MR-J4, and MDS CNC drives. Free evaluation, firm quote, typical repairs $450–$950.
Typical ground transit from California: ~3–4 business days each way

✓Fixed — or it's free
Unrepairable units are refunded; evaluations cost $0
✓24-month warranty
Every repair covered, parts and labor
✓3–5 business days bench time
Rush (1–2 day) and emergency service available
✓Program preserved
Your application and settings stay in the unit
What we see from California
California runs food and beverage processing, aerospace, electronics manufacturing and related manufacturing across Los Angeles, San Diego, San Jose and the surrounding region. That mix decides which controls end up on our bench: food and beverage processing, aerospace, electronics manufacturing and packaging all depend on operator terminals, drives and power supplies that reach end of life long before the machines they run.
With roughly 3–4 business days of ground transit each way and 3–5 business days on the bench, most California customers are back in production well inside the lead time quoted on a replacement unit. When a line is down, overnight shipping plus rush service compresses that further.
Symptoms we fix
- ✓AL.32 / overcurrent class alarms
- ✓AL.10 undervoltage, AL.30 regeneration faults
- ✓Dead amplifier — no display
- ✓Trips breaker at power-on
- ✓Encoder communication alarms traced to the amp
Free evaluation — firm quote first
Free evaluation
Fixed-or-Free Guarantee: $0 if it can't be repaired.
- ✓ 3–5 business days in lab
- ✓ 24-month warranty
- ✓ Program & settings preserved
Ship your unit to
USPS
Control Board Lab
PO Box 120241
Arlington, TX 76012
UPS / FedEx
Control Board Lab
1009 Oakwood Ln # 120241
Arlington, TX 76012
Write your RMA number on the outside of the box and include it on a note inside. Units over 50 lb (large VFDs, spindle drives, industrial PCs in enclosures) ship by freight — contact us before ordering and we will arrange dock-to-dock shipping.
Part numbers we repair for California customers
Mitsubishi Servo Amplifier Repair in California — common questions
Can California plants set up a commercial account?
Yes — maintenance teams and integrators in California can open a commercial account for PO acceptance, priority queue, and repair history by serial. It's the same published pricing, with less friction on every subsequent repair.
Is my program safe shipping it out of state?
Yes. Applications and parameters live in the unit's protected memory, which our physical repairs never touch — and units are logged, photographed, and tracked by RMA from arrival to return shipment.
How long does shipping take from California?
Ground transit from California to our Dallas–Fort Worth lab typically runs 3–4 business days each way. With 3–5 business days on the bench, most California customers have their repaired unit back inside two weeks — and overnight shipping plus rush service compresses that to days when a machine is down.
Servo Drives repair in other states
Machine down? Let's get it back up.
Start a repair online in two minutes, or send us the part number for a free technician review.
The Fixed-or-Free Guarantee: if we can't repair it, you don't pay for the repair.
Call (817) 799-7332 · 📱 Text us a photo of your unit · Email repairs@controlboardlab.com