Are you an authorized AV receiver service center?

No. Square Electronics is an independent third-party service provider specializing exclusively in out-of-warranty repairs for multi-brand AV receivers.

Why is my AV receiver showing Protection Mode?

Protection mode is triggered by power amplifier stage failure, shorted speaker lines, DC offset leakage, power supply overload, or excessive internal heat.

Can you repair HDMI switching and ARC/eARC issues?

Yes. We perform micro component replacement and IC-level rework on defective HDMI control boards and DSP audio processing sections.

AV Receiver Repair Service in Chennai

Professional Audio & HDMI Board Diagnostics

Square Electronics specializes in independent out-of-warranty repairs for surround sound AV receivers. We fix protection mode errors, HDMI switching faults, DSP processor bugs, no sound output, and power supply failures.

10+ Years Professional Expertise

5,000+ Happy Customers

Fair & Honest Service Pricing

4.9★ Google Customer Reviews

WhatsApp Us Call 7338787386

Common AV Receiver Faults We Resolve

Is your home theater receiver experiencing any of these errors?

Shuts Down / Blinking Red Light

Unit triggers safety protection circuit immediately or shortly after powering on.

Video Passes, No Audio

Picture displays properly on TV but no sound comes through speakers or headphones.

One or More Channels Dead

Center, surround, or subwoofer channel has no sound, weak output, or severe distortion.

No Signal / HDMI Failure

TV displays 'No Signal' message or frequent handshaking dropouts via receiver HDMI out.

Dead Unit / Completely No Power

Receiver does not power on at all, display remains dark, and no standby LED shows.

Loud Hum, Hiss, or Crackling

Persistent ground hum, buzzing noise, or static pops across speaker channels.

Network / Bluetooth Connection Error

Receiver fails to connect to Wi-Fi, Ethernet, mobile apps, or Bluetooth devices.

Front Panel Display Unresponsive

Front LED screen is dim, flickering, showing garbage characters, or completely blank.

AV Receiver Brands We Service

Out-of-warranty servicing for high-performance audio manufacturers.

Denon Marantz Yamaha Onkyo Pioneer Sony Harman Kardon Integra Cambridge Audio Arcam NAD Rotel Anthem

Google Ads Policy & Trademark Disclaimer: Square Electronics is an independent third-party service provider specializing in out-of-warranty repairs. All brand names, trademarks, and logos belong to their respective owners and are used purely for product identification and compatibility purposes. We are not affiliated with, authorized by, or endorsed by any manufacturer.

Frequently Asked Questions

Clear information regarding our service policies and process.

Are you an official authorized service center for Denon or Yamaha?

No. We are an independent multi-brand out-of-warranty service center. We do not claim to represent any OEM brand.

Why is my AV receiver entering 'Protection Mode'?

Protection mode protects internal components when there is shorted speaker wiring, a blown output transistor, or severe voltage imbalance on the power amp board.

Do I need an appointment before bringing my receiver?

Yes. Please call us in advance to schedule a diagnostic appointment and drop-off time at our Virugambakkam center.

How long does inspection and component-level repair take?

Detailed electronic diagnosis takes 1 to 3 working days. Repair completion timeline depends on the complexity of IC component availability.

Contact Our Service Center

Appointment Note: Please call and fix your appointment before visiting our workshop.

Address:
Square Electronics, No. 3, Vinayagam Street, Venkatesh Nagar, Virugambakkam, Chennai - 600092, Tamil Nadu, India.

Primary Contact (Call & WhatsApp):
+91 73387 87386

Additional Support:
+91 73387 87396 | +91 73387 87376

Working Hours:
Mon - Sat: 9:00 AM – 9:00 PM | Sun: 9:00 AM – 2:00 PM

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