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How to repair CCTV SMPS 4 channel dead problem | ABC electronics | #short

How to repair CCTV SMPS 4 channel dead problem | ABC electronics | #shorts
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PCB board tracing –

Volume control ki wiring kaise karen –

Power Bank ki sacchai –

Washing machine wiring –

Bed switch connection –

Doorbell indicator wiring –

Projector Ki Safai –

Laptop ki kharab battery -

3 terminal voltage regulator IC information –

Transformer less power supply –

Ghar mein inverter wiring –

PCB में कॉम्पोनेन्ट टेस्टिंग –

Transistor PNP NPN –

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