ReVira Electrònica
Workshop Sheet: Repair Viability
Technical and economic screening checklist for electronic circuit boards
Workbench Diagnostic Laboratory Granollers · Vallès Oriental WhatsApp: +39 3520538785 Prior appointment required
Equipment Details & Workbench Notes
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| Brand / Model: | |
| Board Ref (P/N): | |
| Primary symptom: | |
| Error code: | |
| Input voltage: | |
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Viability Scale
Repair technically and economically strongly recommended 60–75% typical savings
Laboratory workbench diagnosis required Bench Recommended
Repair not recommended or highly complex Complex / Not Viable
Technical Viability Criteria
Fault Symptoms
- Equipment does not power on or power supply completely dead
- Repeatedly trips circuit breaker or internal fuse blown
- Intermittent failure, freeze-up, or error codes displayed
- Burnt or degraded discrete components (capacitors, diodes, power MOSFETs)
Economic & Operational Factors
- New replacement board is very expensive (> €200) or discontinued by manufacturer
- Overall equipment has high replacement value (HVAC, industrial machinery, premium appliances)
- Operational urgency: factory replacement involves weeks of lead-time downtime
PCB Physical Condition
- Copper traces, solder pads, and silkscreen visually clean and intact
- No prior messy repair attempts or botched soldering
- Moderate moisture or liquid corrosion (requires ultrasonic cleaning and trace rework)
- Physically cracked PCB substrate, fracture, or delaminated core (critical condition)
- Burnt proprietary microcontroller or custom ASIC with no commercial source (critical condition)
Online Calculator:
Scan to evaluate this board using the interactive calculator and send symptoms directly via WhatsApp.