Ohm Tester
Thanks for visiting our site!
We hope you find the Ohm Tester information that you are looking for.
We've included some informative information on each page for your enjoyment.
Samsung 510bn LCD Power Supply Repair Secrets
The complaint for this Samsung 510BN LCD monitor was no power, after the cover was opened I found that the power filter capacitor still hold some charge and the voltage was quite high. A good monitor by right the filter capacitor stored voltage should be discharge in less than 10 seconds. This indicates that there was something not right in the circuit. If you happen to repair this type of power problem, make sure you discharge the filter capacitor first before checking on others components. After the filter capacitor voltage already discharged , I used dick smith flyback tester to measure across the primary winding of the switch mode power transformer to see if there are any short circuit occurred.
The result of the test was the flyback tester LED light all goes off which means there must be components shorted either in the primary or secondary section, sometimes the primary winding can go shorted also. A shorted power ic (this monitor is using the 4 pins 5L0365R power ic) in the primary section or a shorted diode in the secondary section would pull down the flyback tester LED bar to the minimum.
If the flyback tester LED have 8 full bars, this means that the components such as power ic (power fet if have), power transformer primary winding and all the secondary diodes are not shorted. To isolate if the shorts is either in the primary or secondary section, you must desolder the power transformer. Check the primary winding of the power transformer off board first before you test on all the secondary diodes using analog meter set to times 10 K ohm.
A shorted diode will show two reading registered at the analog meter. In this Samsung 510bn LCD monitor power supply, the caused of the no power and filter capacitor take longer time to discharge was due to a shorted secondary diode which is from the schottky type with the part number of SB5H100. Searching the internet, I found this diode technical datasheet; it is a 100Volt 5A schottky diode. This shorted diode is located at the 12 volt rail which means it converts the ac to 12 Volt dc.
After the replacement the LCD monitor work perfectly fine! Whether you are troubleshooting the Samsung 510BN Lcd monitor power supply or any type of switch mode power supply, basically the procedure of testing it is the same. Of course there are many more methods to locate the shorted secondary diode such as directly test the diodes, but this method can check for components shorted even without touching the soldering gun.
This means, if the flyback tester shown 8 full bars, then don’t waste your time to test on all the secondary diodes again. Get one dick smith flyback tester and you could see how valuable this meter is in performing variety test for you such as checking the computer monitor B+ coil, flyback transformer, crt horizontal yoke coil, ballast and many more.
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.
Check Ebay for Ohm Tester products. Ebay can be a great resource for finding most anything you desire!
 |
 20Off Digital Multimeter Economic Digital Multimeter Ohm A Voltage Tester $14.99 Time Remaining: 10d 15h 12m Buy It Now for only: $14.99 |
 Digital Multi Meter Tester Ohm DC AC Volt Amps Hand Tools Pocket Size New $7.35 Time Remaining: 52m |
 DT 5300 Digital Earth Ground Resistance Tester Ohm DC AC Volt Meter NEW with Bag $149.95 Time Remaining: 4h 30m |
 LCD Digital Vol Ammeter Ohm Multimeter AC DC Tester Y $4.59 Time Remaining: 14d 18h 21m Buy It Now for only: $4.59 |
 Digital Multimeter Multi Tester Ohm Volt Meter Ammeter $16.61 Time Remaining: 9h 12m |
 A DC Volt Ohm Amp Tester Checker LCD Digital Multimeter $10.59 Time Remaining: 3d 5h 13m Buy It Now for only: $10.59 |
 Digital Multimeter Electrical Tester Ohm AC DC Current Amp Voltage Volt Battery $9.54 (1 Bid) Time Remaining: 18h 56m |
 Digital Voltmeter Ohmmeter Ammeter Multimeter OHM DC AC Voltage Current Tester $10.99 Time Remaining: 21d 8h 20m Buy It Now for only: $10.99 |
 Digital Multimeter Electrical Tester Ohm AC DC Current Amp Voltage Volt Battery $9.67 Time Remaining: 1d 29m |
 600V Digital Multi Meter Volt Ohm ACV Electrical Tester $10.27 Time Remaining: 1d 3h 41m |
 LCD Digital Multimeter Multifunction AC DC Voltage Current Ohm Tester Meter NEW $6.50 Time Remaining: 5d 5h 26m Buy It Now for only: $6.50 |
 Digital Multimeter Electrical Tester Ohm AC DC Current Amp Voltage Volt Battery $9.67 Time Remaining: 2d 1h 44m |
 Digital LCD Multimeter Voltmeter Ohm Volt Tester 830 XL $8.63 Time Remaining: 28d 2h 51m Buy It Now for only: $8.63 |
 New Digital Earth Resistance Tester OHM AC DC Meter BRAND NEW Ship From US $115.99 Time Remaining: 2d 7h 58m Buy It Now for only: $128.88 |
 Digital LCD AC DC Ohm Volt Meter Multimeter Tester New $9.93 Time Remaining: 1d 4h 47m Buy It Now for only: $9.93 |
 New Digital Multimeter Economic Digital Multimeter Ohm A Voltage Tester $0.99 (1 Bid) Time Remaining: 2d 10h 1m |
 Digital Multimeter Electrical Tester Ohm AC DC Current Amp Voltage Volt Battery $9.67 Time Remaining: 2d 16h 7m |
 Digital LCD Voltmeter Ohmmeter Ammeter Multimeter Handheld Tester OHM VOLT $6.30 Time Remaining: 26d 21h 17m Buy It Now for only: $6.30 |
 Ammeter Amp Volt Voltmeter Ohm Tester LCD Display Multimeter $22.13 Time Remaining: 3d 10h 5m |
 LCD Digital Multimeter Voltmeter Ohm Volt DMM Tester $9.81 Time Remaining: 9d 5h 58m Buy It Now for only: $9.81 |
 Battery Powered Multi Meter Volt Ohm Electrical Tester $10.26 Time Remaining: 3d 11h 32m |
 Hot LCD Digital Multimeter AC DC Ohm VOLT Meter Tester Back Light Function Top $8.99 Time Remaining: 29d 2h 45m Buy It Now for only: $8.99 |
 Vintage MURA MULTITESTER Model NH 67 NOS Volt Ohm Amp Tester c1976 Japan $19.50 (1 Bid) Time Remaining: 3d 14h 22m |
 Ammeter Amp Volt Voltmeter Ohm Tester LCD Display Multimeter $20.92 Time Remaining: 3d 22h 34m |
 AC DC Electric Multimeter Ohm VOLT Meter VOM Tester $7.99 Time Remaining: 3d 5h 17m Buy It Now for only: $7.99 |
 Pocket Digital Multi Meter Tester Ohm DC AC Volt Amps Wholesale Hand Tools $7.95 Time Remaining: 3d 23h 39m |
 Digital LCD Multimeter Voltmeter Ohm Volt Tester 830 XL $8.73 Time Remaining: 10d 4h 51m Buy It Now for only: $8.73 |
 Simpson 260 series 7 Volt OHM Milliammeter Multimeter Tester Works $49.99 Time Remaining: 4d 2h 18m |
 Digital MultiMeter Multi tester Volt meter Ammeter Ohm $7.05 Time Remaining: 21d 8h 10m Buy It Now for only: $7.05 |
 Digital Multimeter Electrical Tester Ohm AC DC Current Amp Voltage Volt Battery $9.54 Time Remaining: 4d 3h 14m |
 Digital LCD Ohmmeter Ammeter Voltmeter OHM Multimeter Tester AC DC $9.49 Time Remaining: 13d 2h 55m Buy It Now for only: $9.49 |
 FLUKE 73 III DIGITAL TESTER MULTIMETER VOLT AMP OHM METER USED WITH LEADS $31.99 (4 Bids) Time Remaining: 4d 13h 38m |
 Digital Multi Meter Tester Ohm DC AC Volt Amps Hand Tools Pocket Size New $7.36 Time Remaining: 4d 19h 6m |
 Digital LCD Multimeter Voltmeter Ohm Volt Tester 830 XL $8.83 Time Remaining: 4h 20m Buy It Now for only: $8.83 |
 Digital Multimeter Electrical Tester Ohm AC DC Current Amp Voltage Volt Battery $9.54 Time Remaining: 5d 1h 41m |
 Electric Digital LCD Digital Multimeter Clamp AC DC Ohm VOLT Meter Tester New $8.06 Time Remaining: 17d 9h 15m Buy It Now for only: $8.06 |
 Digital Multimeter Multi Tester Ohm Volt Meter Ammeter $17.46 Time Remaining: 5d 23h 31m |
 Digital LCD Multimeter Voltmeter Ohm Volt Tester 830 XL $8.68 Time Remaining: 28d 2h 43m Buy It Now for only: $8.68 |
 Digital Multimeter Electrical Tester Ohm AC DC Current Amp Voltage Volt Battery $9.67 Time Remaining: 6d 1h 23m |
 NEW 7 Function Digital Multimeter Tester Volt Amp Ohm $9.49 Time Remaining: 6d 2h 15m |
 AC DC LCD Digital Multi meter Volt Ohm Amp Tester Check $12.64 Time Remaining: 2d 21h 34m Buy It Now for only: $12.64 |
 Mini Multitester Multimeter Tester AC DC Ohm VOLT Meter $0.50 Time Remaining: 4h 52m |
 Digital Multimeter LCD AC DC Ohm VOL Tester Meter Measurer XL830L $7.99 Time Remaining: 29d 9h 56m Buy It Now for only: $7.99 |
 AC DC 600V Volt Ohm Electronic Digital Tester Yellow $10.30 Time Remaining: 11h 32m |
 Simpson Model 360 2 Volt Ohm Millammeter AC DC Tester $74.95 Time Remaining: 5d 15h 28m Buy It Now for only: $74.95 |
 Volt Ohm ACV 600V Electrical Tester Digital Multimeter $10.61 Time Remaining: 17h 51m |
 VINTAGE EMC Model 204 Tube Battery OHM Capacity Tester Wood Case $38.99 Time Remaining: 1d 14h 17m Buy It Now for only: $75.00 |
 Simpson 260 Multimeter VOM Volt Ohm Electrical Tester $75.00 Time Remaining: 13h 2m Buy It Now for only: $75.00 |
 Mercury Model 301 Combination Tube Tester crt volt ohm w tube chart $180.00 Time Remaining: 1d 15h 36m Buy It Now for only: $220.00 |
 LCD Digital Voltmeter Ammeter Ohm Multimeter Amp Volt Tester Multitester Meter $3.99 Time Remaining: 1d 3h 22m Buy It Now for only: $3.99 |
 Ammeter Volt Ohm Amp Meter DMM Capacitor Tester AC HVAC $17.77 Time Remaining: 2d 15h 35m |
 NEW Quality 19 Range Digital Voltmeter Ammeter Ohm Multimeter Tester LCD NIB $7.75 Time Remaining: 8d 15h 30m Buy It Now for only: $7.75 |
 Hickok Tube Tester 605A Calibrated AC DC Voltmeter RCL Ohm Amp Meter $485.00 Time Remaining: 4d 2h 58m |
 Ammeter Volt Ohm Amp Meter DMM Capacitor Tester AC HVAC $17.77 Time Remaining: 4d 12h 25m |
 Digital Multimeter Multi Tester Ohm Volt Meter Ammeter $18.32 Time Remaining: 18d 16h 33m Buy It Now for only: $18.32 |
 CONAR OHM ELECTRIC TESTER $15.00 Time Remaining: 4d 18h 52m |
 LCD Digital Multimeter Volt Ohm Amp Tester 30 Range $30.99 Time Remaining: 15d 8h 21m Buy It Now for only: $30.99 |
 Ammeter Volt Ohm Amp Meter DMM+Capacitor Tester Type K Thermocouple AC HVAC Tool $17.77 Time Remaining: 5d 18h 5m |
 Digital Voltmeter Ammeter Ohm Multimeter AC DC Tester $5.81 Time Remaining: 9d 5h 50m Buy It Now for only: $5.81 |
 Ammeter Volt Ohm Amp Meter DMM Capacitor Tester AC HVAC $17.77 Time Remaining: 6d 13h 55m |
Here are more Ohm Tester products:
Another great resource for Ohm Tester products is Amazon. They have far more than just books!
|
|
Sinometer AC/DC Auto/Manual Range Digital Multimeter, MS8268 $34.73 The newly released Sinometer MS8268 is an auto/manual ranging digital multimeter. It is packed with many nice features such as sound and light warning for the jacks and back-lit LCD Screen. This meter powers on three AAA batteries. Accessories include test leads & user Manual... |
|
|
Palm-Size Handheld Digital Multimeter - DT830B $3.77 Model: DT830B - Digital AC/DC multimeter with diode and transistor test function. Specifications: DCV:0-200mV/0.25%-2-20-200-1kV/0.5% ACV:0-200V-750V/1.2% DCA:0-200u-2m-20m/1.0%-200mA/1.2%-10A/2.0%Fused. R:0-200-2k-20k-200k/0.8%-2Mohm/1.0% hEF... |
|
|
Klein MM200 Auto Ranging Multimeter $32.99 Product Description The Test & Measurement product line has been exclusively designed from the ground up by electricians for electricians working side by side with Kleins team of engineers and product experts. Based on years of field research, combined with extensive input from electricians across America, these meters and testers were specifically loaded with the latest innovative, time-saving fe... |
|
|
New Digital Earth Resistance Tester OHM AC DC Meter $109.99 This item is a brand new CE certified digital earth resistance tester. It highly accurate testing device comes with a variety of accessories including a very sturdy carrying case for mobile use anywhere. Also, the device has a huge LCD screen with back light ability to allow for use in any lighting. This is a direct replacement of the conventional hand generator type tester. It is designed to meas... |
|
|
Ohm - Moisturizer for Mature Skin Tester- Brand: Aroma Crystal Therapy Aroma Crystal Therapy Brand.... |
|
|
StarTech.com 20 and 24-Pin ATX Power Supply Tester (PSUTEST20) $4.83 The ATX Power supply tester offers a built-in 25W 5.4ohm load to generate steady outputs, +5V, +3.3V and 12V leads for volt metering, making output voltages easy to check.With straightforward LED indication to let you know your Power Supply is functioning properly, the ATX power supply tester offers the perfect solution for saving time and ensuring system stability.... |
|
|
Quick ATX Power Supply Tester For RMA Dept, system house, or engineer. $9.95 Unit Dimensions 3.25"Wx2"Hx3.75"D. Retail Packaging. 20-pin power connector.... |
|
|
Startech PSUTEST20 20 & 24 Pin ATX Power Supply Tester Retail Offers Built-In 25W 5.4ohm Load $14.99 Product Height: 0.59 in (15 mm); Product Length: 8.11 in (206 mm); Product Width: 2.09 in (53 mm). This 20/24 Pin ATX Power Supply Tester offers a convenient way to check this power supply functions on hand, to save time and possible expense. The ATX Power supply tester offers a built-in 25W 5.4ohm load to generate steady outputs, +5V, +3.3V and 12V leads for volt metering, making output voltage... |
|
|
Equus 3320 Auto-Ranging Digital Multimeter $18.99 Eliminate the need to dial in the correct range Has a 10 MegOhm input Large digital display Protective rubber corner guards for drop protection Includes attachable test leads, holders and standAuto-Ranging™ scales eliminate the need to dial in the correct range when making electronic measurements. Has a 10 MegOhm input impedance for safe automotive and household uses (i.e., household ou... |
|
|
Watt's Up RC Watt Meter & Power Analyzer WU100 Version 2 --- SALE! $56.95 # Specifications: # Voltage 0-60 V, resolution 0.01 V. That's a 14 cell series li-poly pack! # Current 0-100 A peak, 50 A continuous, resolution 0.01 A # Charge 0-65 Ah, resolution 0.001 Ah. That's ~32 Amps for two hours! # Power 0-6500 W, resolution 0.1 W. That's ~8.7 Horsepower! # Energy 0-6500 Wh, resolution 0.1 Wh. # Operates from 4.0-60 V, 0 V with optional receiver battery pack # 16 x 2 STN... |
Thanks for visiting!
Tags: how to use a ohm tester, how to use ohm tester, led, megohm tester, micro ohm tester, ohm tester, photo, productivity, software, writing