Electronics Repair • Audio Equipment • Rochester, MN
Stereo Amplifier & Electronics Repair
We diagnose and repair consumer electronics, stereo amplifiers, and audio equipment—including brands like Denon, Yamaha, Marantz, Onkyo, Sony, and more.
- No power, distorted audio, or intermittent sound
- HDMI, input/output, and channel issues
- Overheating, protection mode, or shutdown problems
Electronics Repair Services
We focus on board-level diagnostics, component testing, and functional repair—without unnecessary replacements.
Stereo & Amplifier Repair
AV receivers, integrated amplifiers, preamps, and power amps with audio loss, distortion, or power failure.
Board-Level Diagnostics
Power regulation issues, blown components, cold solder joints, capacitor failures, and signal path problems.
Ports & Connectivity
HDMI, RCA, optical, speaker terminals, switches, and input selector issues.
Common Problems We Fix
These are some of the most frequent issues we see with stereo amplifiers and electronics.
- Device will not power on
- Unit stuck in protection mode
- One or more channels not working
- Buzzing, humming, or distorted audio
- Overheating or random shutdowns
- No sound from speakers or outputs
- HDMI video/audio pass-through issues
- Input selector not responding
- Physical port damage
- Liquid or surge-related damage (case-by-case)
Brands We Commonly Service
Experience with both modern and legacy consumer electronics.
Our Repair Process
Transparent, step-by-step service with no surprise charges.
1) Diagnostic Evaluation
We inspect, test, and identify the root cause of the issue.
2) Repair Recommendation
You receive a clear explanation of the problem and repair options.
3) Repair & Testing
Component-level repair followed by functional and stress testing.
4) Pickup or Return
Local pickup available. Shipping options can be discussed if needed.
Frequently Asked Questions
Do you repair Denon receivers and amplifiers?
Yes. We regularly service Denon AV receivers and stereo amplifiers, including power and audio issues.
Do you offer diagnostics before repair?
Yes. We perform diagnostics to determine feasibility and cost before major repairs.
Is repair always cheaper than replacement?
Often yes—especially for higher-end audio equipment. We’ll let you know if repair is not cost-effective.
Do you work on vintage equipment?
Case-by-case. Some legacy units are repairable depending on component availability.
Request Electronics Repair Service
Describe your device, brand, and symptoms. We’ll review and advise next steps.
Call us at 507-200-8393 for faster assistance.