先日、急にTVの電源が付かなくなった 買ってから１年も経ってないのにリモコンでも本体操作してもダメ【再】
My TV, less than a year old, suddenly won't power on. Neither the remote nor the on-device buttons work, which is absolutely despair-inducing. Online, people share similar experiences and suggest unplugging/re-plugging, but it's still incredibly disappointing for a new TV.
Related Keywords
Initial Defect
An initial defect refers to a manufacturing or design flaw that appears relatively soon after a product is purchased. Typically, if it occurs within the manufacturer's warranty period (often around one year for many electronics), it's usually eligible for free repair or replacement. The phrase 'less than a year old' in this article strongly suggests the possibility of an initial defect. In such cases, consumers have the right to request remedies from the retailer or manufacturer if the product doesn't perform as expected during the warranty period. For instance, electronics retailers often have an 'initial defect exchange period' of 2 weeks to a month, during which new product exchanges are smoother. Beyond this period but within the manufacturer's warranty, repair is the primary option. However, damage due to consumer negligence (e.g., dropping, water damage) or incorrect usage is not considered an initial defect and will incur a repair cost. Japanese civil law and consumer contract law also define the responsibilities of sellers and manufacturers for product defects, protecting consumers. Given the TV was purchased within a year, contacting manufacturer support is the most appropriate first step.
HDMI CEC (Consumer Electronics Control)
HDMI CEC (Consumer Electronics Control) is a function that enables multiple AV devices connected via an HDMI cable to synchronize operations like power on/off and input switching. While each manufacturer uses its own brand name (e.g., 'VIERA Link' for Panasonic, 'AQUOS FamiliLink' for Sharp, 'REGZA Link' for Toshiba), the underlying technology is common and standardized by the HDMI specification. This feature allows for convenient inter-device operation; for example, turning on a Blu-ray recorder automatically powers on the TV and switches its input, or using the TV remote to control recorder playback. However, HDMI CEC can often be a cause of TV power-on issues. When multiple HDMI CEC-compatible devices are connected, conflicting control signals or a malfunction in one of the connected external devices (game console, soundbar, recorder, etc.) can prevent the TV from turning on or cause it to shut down immediately after startup. Therefore, when experiencing TV power issues, a common troubleshooting step is to temporarily unplug all HDMI cables from the TV and check if the TV powers on by itself. If it powers on, it's highly likely that the problem is due to HDMI CEC malfunction or a specific external device issue. Understanding this function is crucial for troubleshooting, especially since modern TVs are used with many external devices.
Surge Protector / Lightning Protection Power Strip
A surge protector, or lightning protection power strip, is a device designed to protect household electronic appliances from abnormal overcurrents (surges) caused by lightning strikes. It's connected between the outlet and the appliance. When a high voltage surge occurs (e.g., from lightning), internal components like varistors reduce resistance to absorb and block the overcurrent, preventing damage to connected appliances. Devices with many precision electronic components, such as TVs, recorders, PCs, and routers, are vulnerable to surges. A single surge can damage internal circuits and lead to malfunction. They are widely used in areas prone to lightning or by users who wish to protect their valuable appliances. Symptoms like 'TV suddenly stopped turning on' as described in the article could very well be caused by a sudden overcurrent (surge) from lightning, power company work, or electrical system issues in the vicinity. Strong surges can cause fatal damage to the TV's internal power circuit or main board, resulting in a complete power failure. If a surge protector was not installed, it's possible the TV suffered direct damage. Surge-related failures often show no external signs, usually requiring detailed diagnosis by a specialist. Installing a surge protector as a preventive measure is recommended to protect expensive electronic appliances.