Re: Insignia 26" power board need help
If you look at the 12v POWER SUPPLY section, that transformer only has one winding for the 12v output, one end of the winding is tied to ground, another end is tied to the Common Cathode TO-220 case rectifier D950, the center pin output is connected to first filter cap and the inductor, the output side of the inductor is connected to another filter cap, this connection is then connected to one of the pin of the 12v output pin. Please look at the bottom of the board again and check that 12v on the connector.
You are not going to have any 24v since that IC is blown, you can also take out that MOSFET for that 24v and check.
You can expect the inverter board to go out in the future, too many transformers and fuses I had to replace in the CHIMEI inverter board. When you repair more than a thousand TV and monitors, you will see the pattern of what usually failed.
Bad lamp wiring, yes,I fixed many of them also. It happens in all brand.
http://s807.photobucket.com/albums/y...klight%20lamp/
Main thing right now is to find out the P/N of that blown IC, without it, you will not get far. I already circle the MOSFET of the 24v power supply.
If you look at the 12v POWER SUPPLY section, that transformer only has one winding for the 12v output, one end of the winding is tied to ground, another end is tied to the Common Cathode TO-220 case rectifier D950, the center pin output is connected to first filter cap and the inductor, the output side of the inductor is connected to another filter cap, this connection is then connected to one of the pin of the 12v output pin. Please look at the bottom of the board again and check that 12v on the connector.
You are not going to have any 24v since that IC is blown, you can also take out that MOSFET for that 24v and check.
You can expect the inverter board to go out in the future, too many transformers and fuses I had to replace in the CHIMEI inverter board. When you repair more than a thousand TV and monitors, you will see the pattern of what usually failed.
Bad lamp wiring, yes,I fixed many of them also. It happens in all brand.
http://s807.photobucket.com/albums/y...klight%20lamp/
Main thing right now is to find out the P/N of that blown IC, without it, you will not get far. I already circle the MOSFET of the 24v power supply.
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