ESR METER VIDEO

ESR METER SCHEMATIC

Another esr meter for us. Easy to assemble. Esr meter is important to test the equivalent series resistor of capacitor. Because when the electrolytic and non polar capacitors has high esr the equipment is malfunctioning. Try this and built one. It has an update: Visit the link: http://kakopa.com/ESR_meter/

 

Advanced Touch Screen LCD

Virtually all VarTech monitors can be configured with a powerful touch screen solution. Our touch screen displays are anti-glare to reduce reflective shine intensity, which will diffuse the light output throughout the screen.

 Our touch technologies offer tremendous versatility in that activation can be initiated by a gloved hand, fingernail, mechanical stylus or an ungloved finger. Touch screens can be gasket sealed for NEMA 4 and NEMA 4X environments. Many are available with an optionalsunlight readable touch screen. Displays are available with optional resistive, capacitive orarmor touch screens. Touch screen displays are available from 6.4" to 55". Click the link here: http://www.vartechsystems.com/products/resources/touch_screen_technology.asp?utm_source=email&utm_medium=email&utm_campaign=Touchscreen-May2013

Troubleshooting A Dead Powersupply of any Equipment

In troubleshooting a dead powersupply first step is to look for any visible signed like:

 1. burnt fuse

 2.  burnt components like ic, resistor, diode, etc.

note: look for the culprit why these said components burnt. dont just replaced them

 3.  bulged capacitors

 4. dark spot or burnt

on the board it can be a clue if you cannot find the culprit the near components their might be a            suspect.




5. If you cannot find  the above clue. It's time to to used to digital multimeter, capacitor tester, esr meter, ringer.

Work your way in to out. Start on the plug. Check for continuity, it should be 0000 reading in your meter  both line not 100  to be sure ac plug have good continuity or else you will missed the culprit that's why there is no 220 volts ac coming to your plug. Note: for checking continuity and each components for resistance  the plug of equipment should be unplug. After checking for plug follow th fuse for continuity for open and diode for short or leakage , etc. You can used also  ringer to test for the primary winding of switch mode transformer. You can trace the primary by following the positive side main filter of electrolytic caps usually with 200 or 400 volts going to the pin of transformer. on the otherside the drain pin of fet or power ic going to pin of the transformer that' the primary side. if you ring it, it should have 7 or 8 led lits that is the sign the winding is good and the fet is good also but not most on power ic. if you are not good on testing electronic components click on the book above on the right side.

Check for 300 volts something to your main filter capacitor. It should have if your primary side of power supply is working.

 and also check if voltage also is present in drain pin of fet or power ic. if you dont look for the datasheet in the internet type its part number. I f the voltage is present chance are your primary side of smps is good.

Move your focus on the secondary side if there is output coming out of filter capacitor, like 5 volts, 12 volts, 3.3 volts etc. look on the board. if you did not get check for the esr of electrolytic capacitors if it high esr or there is components on the secondary side that is bringing down the voltage of one the said line.

note: if the capacitor is good in secondary side and still you cannot get one or two of the ouput voltage try unplug the socket that is connected to mainboard may be there is problem their. like shorted microcontroller unit ic or other components. if the voltage came back after you unplug the socket the problem is in the mainboard.

Cosview USB Microscope Review

This small, easy-to-use USB digital microscope/magnifier and camera/video camera has a host of uses besides inspecting or photographing ICs or sections of circuit boards. It offers magnification from 5X to 200X at distances up to 300mm from the subject.  Functions include snapshots, video recording, time-lapse video recording, screen printing, measurement and calibration.  The unit comes with application software, a user manual, stand, two transparent covers and a calibration ruler.  A display size of at least 17 inches is recommended for use with this device.

Learn How to Read The Value of SMD Resistor

In this site you can learned how to read smd resistors value if are a beginner in electronics repair. Click on this link:http://www.hobby-hour.com/electronics/3-digit-smd-resistors.php

 

ANOTHER ELECTRONICS BUYING SITE

This site has a affordable price for eeprom programmer, capacitance meter, esr meter, smd tester and other electronics meters. visit the link:http://www.aliexpress.com/item/Best-Selling-Mastech-MS8910-SMD-RC-Resistance-Tester-Capacitance-Meter-Auto-Scan-Free-shipping/646289028.html

DESOLDERING IRON A 2 IN 1

We  electronic technician need to be fully equipped in our line so that our repair work can be made easy. We have different multimeter. Analog tester. Digitalmultimeter. Capacitance tester, ESR tester. and other related equipment to really ease the hour of repair. Like a soldering iron we need a soldering handheld with your two hands are working like analog desoldering pump and soledring iron.




But now the manufacturer made a electric desoldering gun but with a high price and a desoldering iron that are affordable that can make our desoldering of components easy. Visit amazon and here is the link:http://www.amazon.com/Welding-Electric-Soldering-Desoldering-Removal/dp/B0095BOT3O/ref=sr_1_6?ie=UTF8&qid=1368087184&sr=8-6&keywords=DESOLDERING+IRON

HARD DRIVE PARTS

If you are looking for hard drive board visit this site: http://www.hdd-parts.com