Marantz 2270 Receiver
Original complaint: Noisy controls and weak right channel.
Work: Signal-path diagnosis, switch treatment, targeted component replacement, and calibration.
Gallery
Real projects, real equipment, real outcomes.
Each entry includes actual photographs, model details, findings, completed work, and final test notes.
ReceiversAmplifiersTube EquipmentTurntablesRestorationsRepairs
Sansui AU-717 Integrated Amplifier
Original complaint: Protection engagement after warm-up.
Work: Thermal and driver-stage correction with extended operational test.
Pioneer SX-1050 Receiver
Original complaint: Distortion and intermittent channel dropout.
Work: Relay path service, failed component replacement, and listening verification.
Fisher Tube Amplifier
Original complaint: Hum and unstable bias.
Work: Power supply service, tube-stage evaluation, and safety checks.
Project Detail Templates
Use these templates to publish new repair cases quickly while keeping every entry consistent and search-friendly.
Template A: Standard Repair
Title: [Manufacturer] [Model] [Equipment Type]
Original Complaint: [Customer-reported symptom]
Findings: [Measured/observed faults]
Work Performed: [Major repair actions]
Final Testing: [Bench and listening checks]
Remaining Notes: [Any limits or deferred work]
Template B: Restoration Case
Unit: [Manufacturer + model + year if known]
Goal: [Reliability / long-term use / collector preservation]
Scope Approved: [Restoration plan summary]
Critical Replacements: [Power supply, relay, specific sections]
Calibration: [Bias, DC offset, alignment notes]
Outcome: [Operational status and test duration]
Required Image Checklist
1. Front panel and model badge
2. Rear panel and serial label
3. Internal board overview before service
4. Component-level repair detail
5. Bench-test or measurement image
6. Final assembled unit in listening setup