Sony TV Clicking Sound But Won’t Turn On: How to Fix

When your Sony TV clicks but refuses to turn on, it’s understandably frustrating because it suggests the set is trying to start and then stopping. This is most often caused by a power-related issue, such as a failing power supply, loose or faulty connections, or a problem in the standby circuitry. Follow the practical checks below to pinpoint the cause and restore power safely.

If your Sony TV clicks but won’t power on, the fastest, safest fix is a full power reset—then you verify the outlet/cable and rule out faulty external devices. If the clicking returns immediately with the TV connected directly to a known-good wall outlet, the next most likely causes are a power-supply protection condition or a backlight/LED driver fault.

This applies if you hear one or repeated clicking sounds from the TV when you press the power button, but the screen stays black and no boot logo appears. It’s especially relevant if the behavior started after a power outage, moving the TV, or a recent update (though updates can also be coincidental).

Power reset first (quick isolation test)

A full power reset often clears a standby or protection “latch” that prevents boot, even when the TV seems otherwise responsive. Do this first because it’s low-risk and it narrows the problem quickly: if the clicking stops and the TV boots, you likely had a temporary power/standby glitch.

– Unplug the TV from the wall outlet (not just the remote) and disconnect any external devices (soundbar, set-top box, console).

– Wait 5 minutes (long enough for many power-supply standby circuits to fully discharge), then plug the TV back in and try power again.

– If the clicking stops after the reset and the TV boots, the issue may have been temporary—often caused by a brief voltage sag, an unstable connection, or a standby board glitch.

Why 5 minutes helps: TVs use standby power to monitor button presses and manage protection logic. When that logic detects an abnormal condition (for example, a momentary power dip), it can keep the main board from starting until the system is truly reset.

Check power source and cables (rule out “no input”)

If the TV is actually drawing power but the power rails won’t stabilize, it may click and shut down instead of booting. Start by confirming the wall outlet and the power path are solid—this is the most common “non-TV” root cause.

– Plug the TV directly into a known-working wall outlet (avoid power strips and extension cords for this test).

– If you’re using a surge protector, remove it for the test and try again.

– Inspect the power cord for looseness or damage at the TV and at the outlet; even a partially seated connector can cause repeated clicks.

– If your region uses different nominal mains (e.g., 120 V/60 Hz vs 230 V/50 Hz), verify you didn’t switch outlets inadvertently with a converter (see “What can go wrong” below). According to IEC 60038, nominal AC mains values vary by region (e.g., 120 V and 230 V families). IEC 60038

Quick diagnostic thought

– If the TV behaves the same on a known-good outlet, you can treat “bad power” as less likely and focus on the TV’s internal protection behavior.

Disconnect accessories and inputs

A Sony TV that clicks but won’t start is sometimes being prevented from booting by an external-device issue (including HDMI-related quirks). Isolating the TV to “TV-only” helps you decide whether the fault is internal or triggered by an accessory.

– Power the TV with only the TV itself connected (no HDMI devices, no USB drives, no external antennas if you can avoid it for testing).

– If the TV turns on with everything disconnected, reconnect devices one at a time to identify the trigger (often a faulty HDMI device, a misbehaving set-top box, or an accessory that’s intermittently shorting).

– If the clicking continues even with everything removed, focus on the TV’s internal power/backlight path rather than external causes.

What “triggered protection” can look like

Some TVs attempt initialization and handshake across HDMI and internal subsystems. If an attached device causes abnormal signals or voltage behavior, the TV may fail its startup checks and enter a protection cycle—visible as repeated clicking and a black screen.

Listen for the pattern: what the clicking may indicate

Your clicking pattern is one of the best clues to whether the issue is a power-supply protection circuit or a backlight/LED driver fault. In most cases, a TV will “try, detect a fault, and try again,” and the cadence of clicks can help you triage safely.

– A single click followed by no boot can point toward a power supply/protection circuit not staying active long enough to start the system.

– Repeated clicking can indicate the TV is repeatedly attempting to start and then shutting down due to a fault—common with failing power components or a protection response connected to backlight/LED power.

– If you have access to Sony’s service/manual guidance for your exact model, match the symptom description there to identify which subsystem is flagged.

Practical triage table (what to check next)

The table below maps common “clicking + black screen” patterns to the next safest check—so you can avoid guesswork before moving to anything that requires opening the TV.

What can go wrong (and what not to do)

Avoid repeated power cycling and avoid opening the TV unless you can handle high-voltage safety. Protection circuits can worsen when you keep interrupting them, and internal components may store energy even after unplugging.

– Don’t keep pressing power repeatedly in quick bursts; protection circuits can get stressed, and you may miss the condition that would have allowed a successful startup.

– Avoid opening the TV unless you’re comfortable with TV capacitor safety—internal power supplies can retain charge even after unplugging.

– If you previously used an incompatible voltage converter or damaged power cord, you may be dealing with physical damage that requires service rather than resets.

– If the TV briefly flashes any backlight or faint imagery (even for a second), don’t ignore it—backlight/LED issues can masquerade as “no boot.” That’s typically different from a pure main-board boot failure.

– If you just ran a firmware update and the TV now clicks, assume coincidence is possible—but treat it as relevant if the symptom started within the same power session.

DIY vs. service: a practical decision table

If you’re trying to decide how far to go, use this comparison to keep the risk proportionate.

Path	Pros	Cons / Limits
DIY isolation (reset, outlet, TV-only)	Low risk, can fix standby glitches; quickly rules out external triggers	Won’t fix internal power/backlight failures; repeated cycling can worsen faults
Professional diagnosis / repair	Most appropriate for protection cycling, backlight/LED driver faults, and power-supply failures	Costs more; turnaround time depends on parts availability

Verdict / tip (when to DIY vs. when to stop)

Start with the reset + power source + “TV-only” configuration—those are low-risk steps that can save you from unnecessary repairs. If the clicking persists with a confirmed good outlet and no external devices connected, the next step is usually professional diagnosis, because it often involves the power supply or backlight/LED protection circuitry.

Where DIY is reasonable:

– The TV-only test changes the behavior (no-click startup or successful boot).

– The reset stops the clicking and restores normal startup.

Where you should stop DIY and book service:

– Clicking returns immediately after reset and the TV never shows a boot logo.

– You see standby LEDs indicating a fault pattern that doesn’t clear after isolation.

– The TV is under warranty or you suspect surge damage from a power outage.

Downside to note: Even when resets are safe, repeatedly “trying again” can delay accurate diagnosis and may increase wear on marginal components.

Quick scan checklist

– [ ] TV unplugged from wall, external devices removed

– [ ] Full reset performed for 5 minutes

– [ ] Direct wall outlet test (no power strip/surge protector)

– [ ] Power cord seated firmly / no visible damage

– [ ] Power-on attempt with TV-only setup

– [ ] Clicking pattern noted (single vs repeated) to guide next step

Frequently Asked Questions

Why does my Sony TV make a clicking sound but won’t power on?

A clicking sound with no power usually indicates the TV’s power supply is repeatedly attempting to start and then shutting down, often due to a voltage drop, a failing power board, or protective shutdown. Common causes include a bad power supply capacitor, loose internal connections, or issues with the standby power circuit. Unplug the TV, check for any blinking power LED or error behavior, and avoid repeatedly turning it on—this can worsen power-supply problems.

How can I fix a Sony TV that clicks when I press Power but stays off?

Start with basic checks: unplug the TV for at least 60 seconds, then plug it directly into a wall outlet (not a power strip) and try again. If you use a surge protector, remove it to rule out power issues. Next, perform a power reset by holding the power button on the TV (not the remote) for 10–15 seconds while it’s unplugged, then try powering on again.

What should I check first if my Sony Bravia TV clicks but the screen never turns on?

First, verify the remote batteries and try turning on using the physical power button on the TV. Then check the LED/power indicator—if it blinks in a pattern, it may point to a specific shutdown or failure. Also inspect external devices (set-top box, soundbar, HDMI accessories) and disconnect them temporarily to see whether the Sony TV is getting stuck during startup.

Which Sony TV troubleshooting steps are safest for a clicking power issue?

The safest steps are external and non-invasive: power-cycle the TV, use a known-good outlet, disconnect all peripherals, and test with the TV’s buttons or a different remote. If you can access the TV safely, avoid opening the case unless you’re experienced—power supplies can retain dangerous charge. If the clicking continues after resets and outlet testing, it’s often a sign of a failing power supply board or a board-level fault that needs professional repair.

Best options to repair a Sony TV that clicks but won’t turn on?

If simple resets don’t resolve it, the best next step is to identify whether the issue is standby power, the main power board, or a shorted component—this typically requires measurements from a technician. Many models with repeated clicking are repaired by replacing the power supply/converter board or addressing capacitor/board faults. For best results, use Sony parts matched to your exact model number and ensure the repair addresses the root cause rather than only replacing a symptom.

📅 Last Updated: November 03, 2026 | Topic: Sony TV clicking sound but won’t turn on: how to fix | Content verified for accuracy and freshness.

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References

1. Switched-mode power supply
2. Capacitor
3. Relay
4. Standby power
5. Power cycle
6. Power system protection
7. Short circuit
8. https://scholar.google.com/scholar?q=TV+won%27t+turn+on+clicking+sound+power+supply+troubleshooting  Google Scholar
9. https://scholar.google.com/scholar?q=switching+power+supply+protection+hiccup+mode+repair  Google Scholar
10. https://scholar.google.com/scholar?q=capacitor+failure+switching+power+supplies+electrolytic+TV  Google Scholar