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In the afternoon, the user moved a Hisense LCD TV TLM32V68A to my repair shop for me to repair, explain the fault phenomenon and leave the contact number and left. Put the machine on the inspection platform and test the machine, turn on the power blue light, and the blue screen will appear in about ten seconds. The sound of the AV signal is normal, but the normal screen is black for a dozen seconds or so, just like being turned off by the remote control. The sound image appears automatically for more than ten seconds... In this way, the start and stop are repeated. The blue light is always on during the whole process. Pressing the standby button after starting will turn red and then go to standby and no longer start. Restart, turn off the power, turn on the blue light, and then turn it on again. After the start, all the buttons function normally.
The shell is separately tested. There is no capacitor bulge on the power supply high-voltage integrated board and the main board. The output of each of the 12V and 5V terminals on the power supply board is normal. The input terminals of the main board 12V5V are normal. The main board of the main board measures the three-terminal stable output of each patch on the main board: each 5V And the 3.3V output is normal. When measuring the component number N6 (model SE8117TA, the net search is a three-terminal adjustable voltage regulator), it is only about 0.8V, so it happens to be in the self-stop failure phase, and then waits until the self-starting phase. This position has another 1.19V, and it is obvious that the tube has a much higher surface temperature than other similar components. Carefully look at the tube between the 1-2 pins without a voltage-regulating resistor, and the 1-pin has a straight-through resistance to the ground. Because the tube output has a voltage of 1.19V during normal self-starting, it is bold to determine that the tube is a 1.2V power supply. It is blown off from the old motherboard and replaced with an AM1117*1.2V patch three-terminal regulator tube. The test machine can be viewed normally for more than half an hour, and the temperature of the regulator tube replaced is no longer so high. Install the machine and prepare yourself to try it out for a day and then inform the user to take the machine!
·Basic precautions
Do not put expensive oil into low-quality cartridges to avoid wastage. Most pre-filled oil cartridges have the so-called 510 thread. The oil cartridge screws onto a rechargeable battery. Some of these batteries have buttons and some heat up automatically when you pump the oil. Some batteries have multiple temperature settings and some heat up to a preset temperature; these features need to be known in advance.
·Cleaning notes
Use a suitable cleaning tool to clean them, such as activated charcoal or dried tea leaves in a used pipe to absorb the oil. It is important not to use alcohol or other boiling water to clean the pipe, and to wait until it has cooled down completely before cleaning. Otherwise, the hot stem will come into contact with the watery liquid and cause the mouthpiece tenon to loosen, thus shortening the life of the 510 cartridges.
This is what you should be aware of when using 510 cartridges. At the same time, when using 510 cartridges, there are still some vaping tips, for example, when using them, be careful not to suck too hard, will not produce smoke. When you inhale too hard, the smoke is sucked directly into your mouth and not atomized by the atomizer, so gently inhaling is more powerful and gives you a better vaping experience.
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