LG C1 OLED SERIES Wont Turn On Clicking Sound
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
85%
CONF
|
Power Supply Board (PSU)
The clicking sound is specifically the mechanical relay failing to maintain a closed circuit. This happens when the PSU detects an overcurrent or voltage instability within its own internal switching transformers or capacitors, forcing it back into standby to prevent thermal runaway.
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|
|
10%
CONF
|
Main Logic Board
The Main Board manages the power-on sequence; if the system-on-a-chip (SoC) or secondary voltage regulators are shorted, the board will pull the 'Power_Good' line low immediately after the relay clicks, causing the PSU to cycle off.
|
|
|
5%
CONF
|
OLED Panel Assembly
Internal shorts within the organic light-emitting diode layers or the source driver COF (Chip-on-Film) can cause a total system shutdown. If the T-CON detects a current spike from the panel, it instructs the PSU to kill the relay to protect the electronics.
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DIY Repair Guide
Watch exactly how to replace the Power Supply Board (PSU).
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.