Konka plasma TV PD32ES33 difficult to start the fault repair example - android - Phones Developers

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Today I received a Konka plasma TV model PD32ES33. The customer mentioned that the TV might be coming back to life. According to their description, it needs to be turned on for more than two hours before it starts working properly. Sometimes, they have to blow hot air from a hair dryer onto the back cover to get it running. This is definitely one of the more unusual cases I've seen so far.

When I turned the TV on, the indicator light was green, which means the motherboard is receiving a power-on signal. However, the screen didn't display anything. Based on the customer's report, this long boot delay suggests there's an issue with the power board. After discussing the repair cost, the customer decided to leave the TV with me for further inspection.

Once I removed the back cover, I carefully examined the power board and noticed two capacitors that looked swollen or damaged. I replaced them with two 2200UF/35V capacitors of the same model. After reassembling and powering up the TV, it immediately showed a blue screen. I took some photos to document the process and the results.

It seems like the problem might not be fully resolved yet, but at least we've made progress. I'll continue to test and troubleshoot the TV to determine if any other components are faulty. This case has been quite challenging, but I'm determined to find a solution and restore the TV to working condition.