LG did not leave the screen saver

Myads

LG did not leave the screen saver

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Q: In my workshop, and a sta monitor LG FLATRON W2043S model with the following default: normal league, when you put a sign makes the message POWER SAVING MODE. I checked the source and everything ok. I noticed that this also happens with other models. What might be the cause? A: This means that the monitor is not detecting the sync signal from horizontal or vertical. The cause may be a defect in the signal cable (check wiring on pins 13 and 14). But if the circuit monitor, the cause should be near the Mykonos, a transistor or fusistor pifado line circuit horizontal or vertical. If not, it is the Micon.

Eliminating hazards in LCD screens

Myads

Eliminating hazards in LCD screens

One thing is quite confusing an LCD screen scratched. It seems that the eyes go straight to where the risk is ... and no matter how small, always looks like a mountain . The method we discovered and we are publishing grew out of experiments with a batch of scrap fabrics, among which some were scratched. We tried numerous ways to address the risks and found that many get even worse.   But that gave the best result is that we teach here. For this delicate operation you will need two pieces of cloth, clean and soft, a little alcohol and a pen to write on CDs and DVDs with black ink, those type Permanent Maker. It's so simple that it seems unbelievable ... Step 1: Clean up any residue of dust that is on the screen (you may use a piece of cotton) Step 2: Using the pen, paint the groove of the risk, completely covering it with ink. You can paint the side of risk too ... 3 With the cloth moistened with alcohol, remove excess paint, do not appear to brands. This must be done quickly, soon after spraying, but the ink does not come out ... Ready: where's the risk? Well, the photo appear two small "remnants" of the risk to show where he appeared before. The explanation for this is that the LCD screen is dark and polycarbonate screen protector is clear and opaque spot scratched . So it appears brighter when the screen is off and causes a leaf blight when lit. The whitish ink paints the risk and he no longer appears with the screen off and when not lit, because the diluted paint does not block the passage of light. Note: 1) Do it for your own "risk"  2) The entire operation should be done carefully to avoid damaging the liquid crystal.

Confection of a Zenímetro

Myads

 Confection of a Zenímetro

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Description: An excellent measuring instrument to facilitate the life of the Forum. With Zenímetro you can identify whether a diode is in the correct voltage switching even work if it is open, shorted or leaky. Also discovered in short supply lines, circuits and leakage current remains common in switching power supplies. The   best is that tests all the diodes on the same  circuit. Á applicable for testing diodes in general and including the LEDs and displays seven segments, The germanium diode switches at 0.3 Vdc to 0.7 Vdc in Silicon Zeners and the working voltage according to your specification.  Schema Click image to enlarge Mounting Tell a winding transformer with primary and secondary 110 V 130 V in less hardware and at the lowest possible amperage. Between 30 and 50 ma is ideal. R1 may be an R between 33k to 68k for 1 / 2 W C1 and C2 ceramic capacitor between 22K and 33K for 400v insulation. The Voltmeter: You can use an analog multimeter, but with a Digital is much easier to visualize the voltage switching diodes in general. Tip: Zener test if the heat in during the measurement is that the transformer is its Zenímetro withmilliamperage high. Then use the higher R1 and capacitors of smaller value. If your transformer to be very low milliamperage can not switch the Zeners higher value. In this case, use the lower value resistors and capacitors of greater value. See the approximate size of Trafo, compared with a matchbox common:    You'll be able to perfect putting the finishing circuit in a box

Eliminating the effect of the gas pipes in TRC

Myads

Eliminating the effect of the gas pipes in TRC 
Below is the "face" of the device:

A defect is not rare and it often leads to condemnation of the tube is the presence of gas inside.It often occurs in new pipes and then it is easy to remove, but in old tubes becomes more difficult. This dysfunction leads to distortions in the brightness or focus of the unit. For example, when trying to fix the focus, changes occur also in the screen and vice versa, moving the screen and focus also changes. When faced with such a defect, it is likely that the cause is the presence of gas inside the tube.But as this is not the only possible cause, make sure there are no leaks or bad contact in the socket of the pipe, before further action. To eliminate the effect of the gas, it is necessary to fabricate a device using a tube socket. Must be attached with solder all pins, except the focus . Pins connected, you should solder a wire whose other end should have an alligator jaw. Focus on the pin, connect a wire High Isolation.Once done the device can be reused indefinitely, do not wear out and no breaks. To make the discharge, the first ground the alligator clip on the mesh and then plug the device / socket on the tube.  Then, connect the monitor, hold the high-wire insulation and make the tip approaches the anode of the tube until it pops among them a blue spark. A flash will be visible inside the tube. Just try and repeat if necessary. Warning: It is extremely important to avoid accidents, the area near the tip of the wire that will be aligned to the anode, is complete and properly insulated. Take a "jolt" of 24,000 volts is no joke and can have serious consequences!