How to test optical coupler Testing Tool 1. Pointer device 2. DC Source 3. Multimeter 4. Soldering iron optical coupler Type 8PIN like PC923, A7800 optical coupler 8pin Testing method 1) Supply 15V into 8 pin(VCC) 7PIN(gND) of PC923 You need to weld 2 wires into 7, 8 pin so that you can supply power …
How to Test Capacitor or inductance Testing Tool LQ-9101 can be used to test Capacitor and Inductance,Resistance. Please note that 1) Industrial Frequency Transformer can’t be tested via LQ-9101, which should be suitable for high frequency device. 2) LQ-9101 ONLY can test Electrolytic capacitor , other kind of capacitors can’t be tested. LQ-9101 produce AC …