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Posts tagged Design

PCB Design Software automatically check for errors

PCB Design Software automatically check for errors

Circuit diagram remote control

TV remote control Circuit diagram using SL490 This is a 32 channel infrared remote controller circuit fundamentally includes key pad, decoder, transducer stage, an output and a battery. Every key pad button generates 5 bit binary code and IC1 sends this code to the IR leds through D1 and D2 diodes.  Code is shaped from […]

Tone Control

Stereo Tone Control circuit using fet 2SK30 and Tr A561, C734 Stereo Tone Control circuit using fet 2SK30 and Tr A561, C734

Balanced Microphone Amplifier circuit

Balanced Microphone Amplifier circuit using TL072, 1N4004, 1N5819

Sansui 15″ CTV Model: CTVB2B15-P powersupply problem,TV not switching on,replaced C4460, issue stil persists?

Raj asked: Hi, I have a Sansui 15″ color TV Model: CTVB2B15-P. It automatically switched off. When checked, fuse was blown out, I tried replacing the fuse, but it again blown out, so suspecting the problem with SMPS, I further checked and found that C4460 transistor (or STR) was short and replaced it, and now […]

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