How to Fix the 8 Blue Blinking Light Error on Pioneer Pro-111FD
If you own a Pioneer Pro-111FD plasma TV, you may have encountered a problem where the TV does not turn on and the blue power light blinks eight times repeatedly. This is a common issue that affects many Pioneer plasma models and indicates a failure in one or more components on the main power board. In this blog post, we will explain what causes this error and how you can fix it yourself or with the help of a professional.
The 8 blue blinking light error is caused by a voltage drop in the power supply circuit that triggers a protection mode to prevent further damage to the TV. The voltage drop can be caused by various factors, such as faulty capacitors, resistors, transistors, diodes, or voltage regulators on the power board. Sometimes, the problem can also be caused by a bad connection between the power board and the other boards in the TV.
To fix this error, you will need to identify and replace the faulty component(s) on the power board. This requires some basic soldering skills and tools, as well as a multimeter to test the components. You will also need to obtain the correct replacement parts for your TV model. You can find them online or from a local electronics store.
The first step is to unplug the TV from the power outlet and remove the back cover. You will see several boards inside the TV, but the one you are looking for is the largest one with several connectors and wires attached to it. This is the power board. You will need to disconnect all the connectors and wires from the power board and carefully remove it from the TV.
The next step is to inspect the power board for any visible signs of damage, such as bulging or leaking capacitors, burnt or cracked resistors, or shorted or blown transistors or diodes. If you see any of these signs, you will need to replace those components with new ones. You can use a multimeter to test each component for continuity and resistance and compare them with the values given in the service manual for your TV model. You can find the service manual online or from Pioneer's website.
If you do not see any visible signs of damage, you will need to test each voltage regulator on the power board. These are small black chips with three legs that regulate the output voltage for different circuits in the TV. There are usually four or five voltage regulators on the power board, labeled as IC8001, IC8002, IC8003, etc. You can use a multimeter to measure the input and output voltage of each regulator and compare them with the values given in the service manual. If any of them are out of range, you will need to replace them with new ones.
Once you have replaced all the faulty components on the power board, you can reassemble the TV and plug it back into the power outlet. Turn on the TV and check if it works normally. If it does, congratulations! You have successfully fixed your TV. If it does not, you may have missed something or there may be another problem with your TV that requires professional assistance.
We hope this blog post has been helpful for you to understand and fix the 8 blue blinking light error on your Pioneer Pro-111FD plasma TV. If you have any questions or comments, please feel free to leave them below. Thank you for reading!
