Tag Archives: pcb

Ceramic Electronic Circuit Board Manufacturing Plant Located within Asia

There are many times of washing in PCB production. This is auto washing line.There is board sensor on the line, once the pcb is coming, it start to spray water. You have to be careful if your circuit board is very thin eg.0.2mm, you cannot allow factory to use this kind of washing line. You […]

TRI MDA, ICT and FCT Solutions

A brief introduction to TRI’s latest In-Circuit Testing solutions for the PCB manufacturing industry. source Why is Solder Paste Inspection Necessary? Solder Paste Inspection is mainly done to check the solder paste deposits in the Printed Circuit Board (also called Printed Circuit) manufacturing process. It is observed that most solder joint defects in a PCB […]

Repair of old AVR (Automatic Voltage Regulator) PCB.

A look at an old AVR (Automatic Voltage Regulator) PCB that I was asked if I could fix. these devices are used in generators to regulate the output voltage, which they do by varying the DC excitation of the rotating (rotor) central core of a generator. A generator works by spinning a polarised magnetic field […]

Troubleshooting Daikin Inverter PCB Pt1

Attempting to find out whats wrong with this board without a schematic. There is a good possibility that the control supply voltage is supposed to be 110 – 120V and something else is dragging the control voltage down on the inverter board. They are ‘throw away’ items and I don’t think Daikin publishes repair schematics […]

Using near-field probes to assist in troubleshooting a PCB

In this little demonstration, I’m hooking up a set of near-field probes to my oscilloscope to demonstrate how they can assist in troubleshooting a motherboard for a computer. Near-field probes are often used together with a spectrum analyzer for EMI precompliance testing and such, but that doesn’t mean that they cannot be used for troubleshooting […]

Troubleshooting electronics board with a series of Keysight’s handheld instruments

http://www.keysight.com/find/handheld http://www.keysight.com/find/hhmeterlogger See how Keysight’s handheld test and measurement instruments work as a complete solution to help you “Go Further” in your electronic board troubleshooting capabilities in an electronic manufacturing environment. Instruments featured in this video include: – U1270/80 Series handheld digital multimeter – U1700 Series handheld LCR meter – U1600 Series handheld digital oscilloscope […]