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Posts tagged 2SC1815

TV circuits

TV circuit modules Nixie tube driver circuit using 2SA1015, C2482, 2SA1815 Television circuit Color TV Basic Schematic Diagram using TMPA8873KPANG6HV9, 78040, TDA2003, TC4063   Television circuit Television circuit – Color TV Basic Schematic Diagram using TMPA8873KPANG6HV9, 78040, TDA2003, TC4063

DTMF TOUCHTONE GENERATOR

DTMF TOUCHTONE GENERATOR DIP16 TCM5089N DTMF TOUCHTONE GENERATOR DIP16 TCM5089N

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 […]

Circuit diagram Segment LED using L7107

Circuit diagram Segment  LED using L7107 R1= 9.1 M R2=910 K R3=91 K R4=9.1 K R5=1 K R6=100 K R7= 5 K R8=5.6K R9=1 M R10=47 K R11,R12,R13=220 ohm C1=100 pF C2=0.1uF C3=0.01uF C4=0.47uF C5=0.22uF C6=0.33uF C7=1uFC8=C4=0.047uF C9=10uF D1,D2:n4148 D3:Led D4,D5:led IC1: ICL7107 Digital analog converter circuit L7107 and seven-segment decoder R1= 9.1 M R2=910 […]

Digital volume control using DS1669

This digital volume control has no pot to wear out and introduces almost no noise in the circuit. Instead, the volume is controlled by pressing UP and DOWN Digital volume control using DS1669

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