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Hi, I have a panasonic viera TH-P42S10A with the 5 red flashing lights issue. I ordered another power supply board (ETX2MM747MF) thinking that was the issue, but no change. With everything plugged into the power supply board, switching it on, I hear the first relay on the board click in, then a tiny buzzing/ arcing sound then a relay clicks, and then I get the red lights. With P25 disconnected from the board, I still get the two relay clicks but not the buzzing sound, and get a single flashing light. Nothing looks burned and all the capacitors look normal. I'd like to continue troubleshooting, but unsure where to go from here. Thanks in advance for any assistance.

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SOURCE: panasonic th-42pa20 plasma 42 inch tv

Try to replace the Main Power Supply board first.

Posted on Jan 01, 2008

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SOURCE: Hi, I have a panasonic viera TH-P42S10A with the 5

By replacing the power supply only; the set will switch On. You have to adjust the Va & Vs voltages. These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. Do a search by type in the brand name of the device to the search box.

Posted on May 13, 2014

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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

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Hi, I have a panasonic viera TH-P42S10A with the 5 red flashing lights issue. I ordered another power supply board (ETX2MM747MF) thinking that was the issue, but no change. With everything plugged into the...


By replacing the power supply only; the set will switch On. You have to adjust the Va & Vs voltages. These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. Do a search by type in the brand name of the device to the search box.

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