AV Board Repair for Sony TVs: Legacy Input Service in Nairobi

AV Board Repair for Sony TVs: Legacy Input Service in Nairobi

Composite, component, and analogue audio inputs still matter in thousands of Nairobi homes, connecting CCTV systems, older decoders, DVD players, and legacy gaming consoles to Sony televisions. When those inputs fail, the AV board is at fault, and Pro-Logic Technologies on Luthuli Avenue specializes in keeping these legacy pathways alive.

What the AV Board Does

The AV board carries the analogue audio and video input stages of the television: the composite video jack, the component video inputs, the stereo analogue audio inputs, and in many models the analogue outputs and headphone jack as well. Signals from these jacks are conditioned, amplified, and in the case of video, converted to digital form for display. Although modern sources have largely moved to HDMI, analogue AV remains vital in security installations, hospitality settings, schools, and homes with older equipment, and Sony televisions remain prized for their quality AV inputs. AV board faults develop through connector wear from repeated insertion, surge damage through connected equipment, and component aging in the conversion stages. Because these stages are separate from HDMI, their failure is precise and specific: HDMI works while analogue sources fail, which makes diagnosis straightforward for a trained technician.

Signs of a Faulty Sony AV Board

1. No picture on composite or component inputs while HDMI works. AV video stage failure.
2. No sound on analogue inputs. AV audio stage failure.
3. Rolling, tearing, or unstable analogue pictures. Sync processing faults on the AV stage.
4. Worn, loose, or intermittent AV jacks. Physical connector wear from repeated use.
5. Wrong colours on component inputs. Channel faults in the conversion stage.
6. Hum or buzz on analogue audio. Grounding or component faults on the AV board.

Our AV Board Repair Process

At Pro-Logic Technologies, Kangari Building, AV faults are diagnosed with reference signals injected into each input while monitoring the response at each stage. We test the connectors mechanically, the conditioning stages electrically, and the conversion stages for accuracy before attributing any fault. You receive a written quotation before any work begins. Worn jacks are replaced with quality connectors and reflowed to specification; failed conditioning and conversion components are replaced at board level under magnification; and grounding faults are corrected cleanly. Where a dedicated AV board must be replaced, we source genuine and compatible Sony parts matched to your model. Most jobs are completed within one working day, and every repair is covered by our service warranty.

Why Choose Pro-Logic Technologies

Luthuli Avenue's electronics tradition is at its strongest in legacy formats, and our workshop is one of the few Nairobi service centres that continues to invest in analogue test equipment and AV-stage expertise while also servicing the latest OLED and Mini LED models. We repair Samsung, LG, TCL, Hisense, Philips, and every major brand daily, and our quotations are written, transparent, and honest. If your AV inputs have failed, call 0723 763 173 or 0101 763 173.

FAQs

1. How much does Sony TV AV board repair cost in Nairobi?
Connector replacements are very affordable; conversion-stage repairs cost more but remain economical. We provide a written quotation after diagnosis, with the diagnostic fee waived when you proceed with the repair.

2. How long does an AV board repair take?
Most AV repairs are completed within one working day. Special-order boards for older models may take two to three days.

3. Do you still service older Sony TVs with AV inputs?
Yes. Pro-Logic Technologies actively maintains the equipment, parts network, and expertise required for legacy Sony models that many Nairobi shops decline to service.

4. Why do my HDMI inputs work but AV inputs do not?
Analogue and digital inputs use entirely separate processing stages, so one can fail while the other remains healthy. This pattern is a strong diagnostic indicator of an AV board fault and is usually repairable at modest cost.

5. Do you offer a warranty on AV board repairs?
Yes. Pro-Logic Technologies provides a service warranty on workmanship and installed parts for every AV board repair and replacement. Bring your television to Kangari Building, Luthuli Avenue, or call 0723 763 173.