Equipment
Power Supply Repair in Nairobi, Kenya
Power supplies are among the most common failure points in electronic equipment. Sinsal repairs switch-mode and DC power supplies at the component level.
Equipment Covered
- Switch-mode power supplies (SMPS)
- DC power supplies and converters
- Industrial power supplies
- Power supplies for networking, CCTV and POS equipment
- Medical equipment power supplies (electrical repair only)
- UPS control and power boards
Common Faults
- Dead supply after a blown fuse
- Output voltage low, high or unstable
- Bulging or leaking capacitors
- Supplies that cycle or squeal
- Failures after surges and overloads
Diagnostic Process
- 01Visual inspection for failed capacitors and burn marks
- 02Isolated measurement of primary and secondary components
- 03Controlled power-up through a current-limited source
- 04Feedback and switching waveform checks with an oscilloscope
- 05Identification of the failed stage and what damaged it
Repair Process
- 01Replacement of failed switching devices, rectifiers, capacitors and protection parts
- 02Correction of the cause where one is found
- 03Re-inspection of stressed neighbouring parts
Testing and Validation
- Output accuracy and ripple under load
- Cold start-up check
- Thermal imaging and extended run at load
Frequently Asked Questions
Common Questions
Can a failed power supply be repaired?
Often, because the fault is usually confined to a few parts. Assessment confirms which parts failed and whether replacements can be sourced.
Why do power supplies keep failing?
Common causes are heat, ageing capacitors, surges and overload. Failure analysis can look for the cause where a supply keeps failing.
Have a Failed Power Supply?
Describe the equipment and the fault. Sinsal will confirm whether it is a fit for diagnostics and repair before any work begins.
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