TREE

Tv tuner serves as the catcher signals from the antenna. Damage tuner, among others: 1. Image does not exist and there is no sound, raster speckled thick. 2. No picture no sound, or otherwise. 3. Channel switching the channel itself. 4. Image blocking white or blue. How to check the tuner and the IF is to remove the tuner from the PCB and connected by cable to the IF path, BM and Ground, then prepared using the pin on the tuner. Then the television was turned on, the antenna is connected to the antenna socket, and RV or potensio rotated slowly to choose the television channel when the tuner is in normal condition, the signal from the antenna to be acceptable, the picture and sound, and the channels do not move themselves. To damage its own channel switch and checked the normal manner stated above, the location of damage on the section of the program.

Microsoft has officially unveiled the Lumia 930 smartphone version and 830 in the body with gold trim. The devices will be available in black and white with a golden frame over the face. Lumia 830 Gold will go on sale in February in Europe, Asia-Pacific, China, India, the Middle East and Africa. Lumia 930 Gold will be a little earlier - in January - in some countries in Europe, the Asia-Pacific region, the Middle East, Africa and China . The exact cost of new devices is not reported, it will depend on the region. From the viewpoint of characteristics of the model is obviously not changed. Lumia 930 smartphone features a 5-inch Full HD, 20-megapixel camera, quad-core Qualcomm Snapdragon processor 800, 2 GB of RAM and 32 GB of internal memory. Lumia 830 is built on a quad-core Qualcomm Snapdragon 400, equipped with a 5-inch touchscreen display with a resolution of 1280 x 720 pixels and 10-megapixel camera. Both models operate on the basis of OS Windows Phone 8.1.

TRACOPOWER launches the high performance TEN50 Series with 12 models providing 50W power in a 1”x 2”x 0.4 “ compact package. Today already almost all of applications require a high efficiency of a voltage conversion. When we add to this requirement also saving of space and a galvanic isolation, we´ll get to widely used components – DC/DC modules. The TEN 50 Series models feature a very high efficiency of up to 92%. Excellent efficiency is maintained in over a wide load range and no minimum load is required for an accurate output regulation. They are available in three basic groups – TEN 50-12xx, TEN 50-24xx a TEN 50-48xx with a wide input voltage range (2:1).   Low thermal losses and the use of highest grade components allow an operating temperature range of –40°C to +85°C while up to 55°C no forced air cooling is required. With an optional heat-sink this temperature can even be increased. An operation without a forced air cooling is possible even at higher temperatures – at an ade...

This power indicator circuit is intended to be used as an extension for the water softener. It might be easier to just place a LED but it is better to make a rectifier that detects the presence of the 15 kHz signal generated by the 555 IC. Water Softener Power Indicator Schematic The rectifier is connected at the water softener system with C4 capacitor. D1 and D2 diodes are used to obtain a DC voltage that is filtered by C5 capacitor. This voltage turns ON the FET that lights up the LED. When there is no signal from the oscillator the LED will not glow. D1 and D2 = 1N4148. NE555 datasheet

If the switching regulator fails to work or fail to start, then it is usually of the electrolytic capacitor is storing charge. There are habits of some engineers dumping electrolyte capacitor like this using solder. This is actually a poor habit. Because without them knowing things like this sometimes can lead to broken solder element. Why this may happen? Note that the voltage on the electric charge of the electrolyte capacitor is 300V. While working voltage 220v only solder element. If the charge on the electrolytic capacitors are still full and the 220u electrolytic capacitors or more then this electric charge can only damage the solder element. Another bad habit of throwing of the electrolytic capacitor is to download shortkan legs electrolyte capacitor with a screwdriver. It is no possibility of damaging electrolytic capacitor itself, in which connection leg electrolyte capacitor is no risk in it will burn. How should the dumping of the electrolytic capacitors ? Alw...