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Problem RGB TV Cina Yang Sering Menjebak Teknisi

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Problem RGB TV Cina Yang Sering Menjebak Teknisi "> Diantara problem kerusakan TV Cina yang sering menjebak teknisi adalah bagian RGB. Ini dari hasil pengamatan Admin ketika membantu teman dalam menangani kerusakan seputar RGB TV Cina. Banyak sekali kesalahan prediksi yang berujung pada gagalnya menyelesaikan pekerjaan servis. Diantara problem RGB yang paling sering Admin temukan dan tidak semua teknisi paham dalam memperbaikinya adalah: Gambar buram kadang seperti pelangi berkabutGambar dominan di warna tertentuGambar muncul warna tertentu disertai dengan garis-garisGambar seperti kliseGambar blank putih bergarisWarna seleberanDan masih banyak lagi. Nah dari semua problem atau kerusakan seputar RGB TV cina diatas, akan saya bahas satu-persatu tentang penyebab pasti dan cara memperbaikinya. 1. Gambar buram kadang seperti pelangi berkabut Gambar buram dan terkadang seperti pelangi dipenuhi kabut sering dianggap teknisi adalah kerusakan tabung sudah lemah atau FBT rusak. T...
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3000 Watts Power Amplifier Class D Mosfet IRFP260 / IRFP4227

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3000 Watts Power Amplifier Class D Mosfet IRFP260 / IRFP4227 3000W (3kW) Class D Power Amplifier Project using IC IR2110, CD4049 (HEF4049/HCF4049), NE555, LM311, and Op-Amp Comparator TL071 as the main stage amplifier, the driver stage using BD140/BD139 or you can use any driver stage power amplifier transistors. The Final Stage Amplifier using 4 x Mosfet Transistor IRFP260 or you can use IRFP250 / IRFP460 / IRFP4227. And do not forget to lose the importance of the LPF Filter. The advantages of this high power amplifier are: Strong Bass Boost, not SaggySecondary comfortable bias voltage (can be AC (transformer) / DC (adapter))Highly Efficient Rail - Stack LayoutOversized Heatsink & Output Coil (not easy saturation)Pulse Resolution Adjust Enable Below the Circuit Diagram of 3000W Class D Amplifier includes PCB Layout design: Component List Resistors 1/4W: 4R7 x 2, 10R x 5, 100R x1, 47R x 4, 1K x 8, 4K7 x 4, 100K x 3. Resistors 1W: 22R x 2 Resistors 2W:10R x 1 , 1K5 x 1...
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PCB Layout Power Amplifier Class-D Behringer B215D IRS20957 pdf

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PCB Layout Power Amplifier Class-D Behringer B215D IRS20957 pdf Class D Power Amplifier circuit is on the rise especially in recent years due to its very high efficiency and relatively cheap price and Advantages of Class D Power Amplifier Circuits The advantages of class D power amplifiers are: Efficiency on supply power requirementsSimple physical sizeCool design and very practicalThe heat produced is very minimal Class D audio amplifier is a switching amplifier or PWM as previously explained. By applying the Switching model it can reduce the power loss in the final amplifier and allow for the efficiency of 90% - 95%. The input audio signal is used to modulate the PWM carrier signal that drives the final amplifier. Before being fed to the speaker, the Low Pass Filter (LPF) is passed to eliminate the high-frequency PWM carrier. And on this occasion I will share the schematic along with the PCB layout for the D-class power amplifier, the Behringer B215D schematic power amplifier y...
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