Diode Pin Numbers

By Numbers $6.49 By Numbers

DIODE $12 When these electrical items fail there is little choice but to renew - With this genuine Suzuki par..

Pyle LAN Tester,Multimeter and Diode Tester $110.8 2 in 1 LAN Tester and Multimeter with Voltage, Current, Resistance, Continuity, and Diode Tester Tests Pin Configuration for 10 Base-T, 10 Base-2, RJ45/RJ11, 356A, TIA-569A/568B and Token Ring Cable Remotely Test Cables Up to 330 Yards Away Test Ground Wire Measure DC/AC Voltage, DC/AC Current, Resistance, Continuity, and Diode DC Voltage: Max Range 600 V, Accuracy +/- 0.5% AC Voltage: Max Range 600 V, Accuracy +/- 1.2% DC Current: Max Range 200 mA, Accuracy +/- 1.2% AC Current: Max Range 200 mA, Accuracy +/- 2.0% Resistance: Max Range 20 MO, Accuracy +/- 0.8% Continuity Test: Beeps If Less Than 100 O Accessories Included: Test Leads, LANtest Remote Terminator, 9V Battery, Carrying Case Dimensions: 6.38" H x 2.93" W x 1.73" D Weight: 10.86 oz.

By The Numbers $77.99 Jan Weiss By The Numbers - Mounted Photo

Numbers $29.99 Cheryl Piperberg Numbers - Giclee Print

Vinyl Pin Placement Pad: SP $32.8 54'' square, heavy gauge vinyl floor pad with pin set numbers...UPS.

Numbers - Everything is Numbers $21.99 Numbers - Everything is Numbers - T-Shirt

Max Bill Automatic Wrist Watch with Numbers $900 The Max Bill Automatic Wrist Watch with Numbers adds a beautiful and classic element to daily wear in an enduring design by Max Bill. The Automatic Wrist Watch with Numbers features a stainless steel case and a leather strap. Its design is true to the form of the original Max Bill watches offered in the 1950s. It is offered in the US by Ameico. Ameico, headquartered in Connecticut, hosts original works by contemporary designers, offering an array of well-designed products for modern sensibilities. The Max Bill Automatic Wrist Watch with Numbers is available with the following: Included Features:Highly-polished Stainless Steel case.White face.Minutes indicated with lines.Hours indicated with numbers.Black Leather strap with Polished Steel pin buckle.Designed by Max Bill.Solid Steel snap on back bearing Max Bill's signature.Automatic movement.Made in Germany with Swiss movement.Shipping: This item usually ships within 2 weeks. Dimensions: Case: Diameter 39 Cm.

Max Bill Manual Wrist Watch with Numbers $800 The Max Bill Manual Wrist Watch with Numbers adds classic 1950s style to daily wear in a design that employs modern technology to make this watch supremely accurate and reliable. The Manual Wrist Watch with Numbers features a stainless steel case and a leather strap. Its design is true to the form of the original Max Bill watches offered in the 1950s. It is offered in the US by Ameico. Ameico, headquartered in Connecticut, hosts original works by contemporary designers, offering an array of well-designed products for modern sensibilities. The Max Bill Manual Wrist Watch with Numbers is available with the following: Included Features:Highly-polished Stainless Steel case.White face.Minutes indicated with lines.Hours indicated with numbers.Tan wrist band with Polished Steel pin buckle.Designed by Max Bill.Solid Steel snap on back bearing Max Bill's signature.Manual wind.Made in Germany with Swiss movement.Shipping: This item usually ships within 2 weeks. Dimensions: Case: Diameter 34 Cm.

Unitech Wired - Photo Diode MS146I4G $106.01 Unitech Wired - Photo Diode MS146I4G

Dell Monitor Repair (Likom L705xxx Model) With No Power Symptom

This DELL 17” Monitor (Made in Malaysia under LIKOM model L705XXX, product no: L7055LP) came in with no power symptom. Normally after opening up the cover I would look at the power supply (primary side) for any burnt and cracked components first. If there are darkened area and burnt components, I would tell myself that this Monitor needs a little more time to repair it. If it is not (component’s intact) I would usually begin to discharge the filter capacitor and start checking the fuse.

Okay, it is confirmed that all the primary side components looks good in this Monitor.

First, discharge the big fat filter capacitor with a resistor (I know that the voltage already drained off but it is a normal procedure for me because what if the start up resistor has an open circuit?) then check the fuse.

If the fuse is okay, experience will tell you that the bridge diodes are also working fine. Place your black probe of your analog meter set to x1 to the center pin (drain) of the power FET and red probe to the other pin one at a time (gate and source). If the pointer of the meter doesn’t kick then 80 % of the Power FET is okay. If you want to 100% confirm if it is good then you have to solder it out and test. If the pointer shows a reading then most probably the power FET has developed a short circuit. The result that I got from this Monitor was the pointer don’t flick.

Now is the time for me to use the dick smith flyback tester to check the smps primary winding. The result that I got was, the led bar don’t lit. Ah ha! That was a clue and this clue tells you that it is either the smps primary winding is shorted or one of the secondary diodes has given way. Of course you can check all the secondary diodes with your normal multimeter first (remember, every electronic repairers have their own procedure methods of troubleshooting) but I prefer this way as I want to confirm also if the smps primary winding is working or not.

Usually smps transformer is very robust thus I didn’t suspect it to pull down the flyback tester reading. I straight away check all the secondary diodes with my analog meter and found one diode shorted (part number U202G). Since I do not have this part number, I use a UF5404 ultra fast recovery diode as a replacement. In fact I use this UF5404 to all 14 to 17” Monitor as a replacement for all part number of secondary diodes. The spec of this diode was 400volt, 3 Amp with 50 nanosecond.

After the replacement of the diode, and placing the flyback tester probes again to the primary winding, the result shows full bar on the LED. Don’t be happy with the result yet because your job still hasn’t done.

Now I moved on to check HOT with the same procedure as checking the power FET. The HOT checked to be okay too. Next, I check the internal capacitance of the flyback transformer to see it is shorted or not or is the capacitance value run. For your information, internal capacitor in flyback transformer gave lots of problems in computer Monitor. I also scanned thru the B+ FET and found it to be good too.

Now is the time to switch on the Monitor, however this round I don’t connect any bulb because it was only a shorted diode in the secondary side. I would only connect a light bulb after repair when there is major short circuit in the primary side such as a blown bridge rectifier, shorted fet and smps primary winding and also burnt components in the board.

The DELL 17” Monitor worked beautifully and after long hours of burn-in test, I declared it okay and ready to send back to my loyal customer. Isn’t it fun to be able to repair a Monitor and at the end you get paid for something you like doing. I just love electronic repair!

About the Author

Check out the two links below. You will be pleasantly surprised to find out that LCD and Electronic Repairs are so Easy and Highly Profitable for even a novice. You can learn the repairing secrets easily.

Find out How to Repair Any LCD Monitor - It is a breeze!

Learn the Secrets of Testing Electronic Components.