Expert diagnosis and restoration of vintage receivers, turntables, and stereos, including quadraphonic systems.
Comprehensive testing and assessment to identify issues in audio equipment and other electronics.
Skilled repair of damaged circuit boards, capacitors, resistors, and transistors for reliable performance.
Sourcing and installation of high-quality, rated parts, with updates per vintage tech advisories.
Full demonstration of repaired units in-shop to ensure functionality and customer satisfaction.
Man. Where do I start with the review of a great repair technician as well as a great guy My Pioneer QX 949 Quadraphonic Receiver got “dropped / bounced “ during shipping. It was dead on arrival !! Took it to Jimmy at Electronics Service Center where he gave it a professional check out. He discovered that the heavy transformer rattle loose probably in transit then broke free and broke / cracked the major supply board as well as other key components when it got dropped He took on this dead receiver to see if he could breathe life back into it. He gave me a fair and reasonable estimate at the start. After some time - ie waiting on real / good rated parts - repairing the damage circuit boards and other capacitors / resistors / transistors that got damaged and or updating per vintage dealer tech advisories - Jimmy brought it back to life. All four quad decoder boards work as they should - powers up fully and drives my four matched speakers as it should. My quadraphonic reel to reel / quad tapes sound tremendous on the Pioneer. !!! Jimmy stayed within his estimate as promised. He did a lot of work. I am still on the good side value wise of my total cost on this receiver. He also fully demonstrates your repaired unit before you leave his shop. I am a very happy customer
I have relied upon Electronics Service Center and its owner, Jimmy Diaz, over the past several years to keep my vintage '73 Marantz 2230 stereo receiver running and sounding great, long past its original life expectancy. I have found Mr. Diaz to be a straight-shooter, good communicator, honest, fair priced, and extremely competent in his field of electronics repair. In this region very few highly competent audio repair shops exist; I highly recommend this one. - Michael James
I don't write reviews...ever! Jimmy is such a humble guy and so good at what he does. He's a breath of fresh air. He's friendly, and I can't say enough about him. He fixed something of great sentimental value to me...he's great, and the price was right! Thx Jimmy
I had a terrible experience with this center. The spokesman, Jimmy Diaz called the receiver I purchased Inferior! He said it would take 3 to 6 months to get it repaired because the part was not in stock. A few days later I talked with this person, he said the inferior receiver was fixed and ready for shipping back to me. Well I received the receiver and it still doesn’t work. Has no sound for the rear speakers. The same problem it had before. THEY DIDNT REPAIR THE RECEIVER. THIS CENTER IS REALLY A WASTE OF TIME.
Really great experience with Jimmy at ESC. He let me know when to bring in my Technics SL1200 mkII turntable (that i've had as a DJ for almost 30 years) that was giving me issues with a buzz and unbalanced sound. He troubleshot my issue with some testing, assessed the problem and was able to diagnose what is and what isn't working. If you think you know about stereo equipment, get ready to be humbled and learn from a master technician. He is very clear about what type of investment you'll need to make in order to save your equipment without beating around the bush, this ability comes from historical knowledge of devices from times beyond our own. Along with the diagnosis, he has some awesome disc players, turntables and more in the lobby, enjoy! Hopefully I won't have to go back but if I do, I know exactly where to go.

Expert vintage audio repair and electronics restoration by master technician Jimmy Diaz.
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Electronics Service Center, led by master technician Jimmy Diaz, specializes in professional repair and restoration of vintage audio equipment, including receivers, turntables, and stereos. Serving Germantown and the surrounding region, we offer honest assessments, fair pricing, and meticulous workmanship to breathe new life into your cherished electronics. With decades of expertise and a commitment to quality, we ensure your devices are fully tested and demonstrated before you leave our shop.
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