Lcd Inverter

January 26th, 2009 |

Author: admin

Lcd Inverter

Ebay listings for Lcd Inverter products.

OUTBACK POWER MATE-3 LCD DISPLAY MONITOR INVERTER AND BATTERY CHARGE CONTROLLER

$529.00

OUTBACK BLACK MATE-2 FLUSH MOUNT LCD DISPLAY MONITOR BATTERY INVERTER CHARGER

$279.00

Outback Mate Solar System Inverter Control Unit w/ LCD Display

$269.00

SMA SB700U Sunny Boy 700U Grid Tie Inverter 700W 250V with LCD

$1,125.00

Fronius IG Personal Display Monitor Multiple Inverters LCD

$245.00

Lcd Inverter products on Amazon:

P3 International P4400 Kill A Watt Electricity Usage Monitor

$50.00

Empowers You to Save Hundreds on Electric Bills Electricity bills are rising. Now you can cut down on costs and find out what appliances are actually worth keeping plugged in. Simply connect these appliances to the Kill A Watt, and it will assess how efficient they really are. The large LCD display counts consumption by the kilowatt-hour, the same as your local utility. You can calculate your elec…

Cobra CPI 1575 1500 Watt 12 Volt DC to 120 Volt AC Power Inverter

$189.95

This inverter provides household power on the go. It converts battery power to 120 V AC household power, allowing you to power up office equipment and household appliances from your vehicle. This unit is ideal for such appliances as microwave ovens (1000 watts or less), coffeemakers, laptops, TVs, video game consoles, CD and DVD players, cell phone chargers, and more. Power equipment and applia…

Tripp Lite PV150 PV 150W 12V DC to AC Portable Inverter with DC Auto Power Outlet

$22.91

300 watts peak150 watts continuous power Low-battery alarm with auto-shut-off prevents deep battery dischargeLightweight design with all-metal housingClean quiet operation1 AC outlets 3 3/4″W x 1 3/4″H x 5 3/4″DPV-375: 4 1/4″W x 2″H x 7″DPV-600 6 1/4W x 4″H x 10 1/4″DIncludes DC cigarette lighter plug…

Tripp Lite APS2012 2000W 12V DC to AC Inverter with Automatic Line-to-Battery 100/25-Amp Charger

$1,089.00

Tripp Lite APS2012 PWRINV APS 2012 2000W 12VDC HWIRE…

AIMS 12 Volt Solar Charge Controller with Digital Display

$98.00

The AIMS Power Solar Battery Charger and Charge Controller allows you to use your solar panels to charge your batteries and regulates the voltage. Easy to use. Provides up to 30 amps of charging power….

Welch Allyn Model 112678 – LCD Backlight Inverter Cable

$29.56

Welch Allyn Model 112678 – LCD Backlight Inverter Cable…

CyberPower CP1350AVRLCD Intelligent LCD 1350VA 810W with AVR Tower UPS

$114.99

The CyberPower Systems CP1350AVRLCD UPS, designed for mid to high-end computer systems, features dynamic line conditioning and a LCD diagnostic display. Real-time system vitals can be viewed from this display and the unit can be conveniently mounted in a workstation cabinet or directly on the desktop. The CP1350AVRLCD also guards against surges/spikes, and also offers battery backup in the event…

AU OPTRONICS B156XW02 V.2 BOTTOM LEFT CONNECTOR LAPTOP LCD SCREEN 15.6 WXGA HD LED DIODE (SUBSTITUTE REPLACEMENT LCD SCREEN ONLY. NOT A LAPTOP )

$49.89

You are purchasing a BRAND NEW 15.6″ WXGA HD Glossy LED LCD. This LCD is compatible with many laptop models as well as many LCD screens. This 15.6″ LCD is LED and does NOT use an inverter. This screen has the LED connector towards BOTTOM-LEFT (If facing the back of the screen).

Please check model numbers and part numbers for compatibility….

Goldsource® Step Up and Down Voltage Converter Transformer ST500 – Transformer – AC 110/220 V – 500 Watt

$32.45

Dimensions :7″x7″x5″…

LCD TV inverter board repair Autotoll

$97.19

…

HP F1723 Lcd Monitor Repair – No Power

This HP1723 17″ LCD Monitor came in with the complaint of no power. Upon further inspection I could hear a soft intermittent sound coming from the both front speakers. Since the speakers can produce some sound, this indicates that the Power Supply should be working fine and it may be some bad components located at the secondary side that had caused the power supply voltage to drop not to start. The power LED doesn’t light because the signal was coming from the Microcontroller (MCU) IC. This means that if the MCU did not receive the right voltage from the power supply, it will not send output voltage to the power LED.

As usual, to open LCD Monitor cover , one have to be careful of not scratching or leaving a mark on the plastic casing otherwise the customer may not want to accept his or her broken or badly scratch LCD Monitor. Once the cover have been removed, you have to remove another four screws (two at each side) in order to take out the power/inverter and the Main board. For some LCD Monitors, the moment you have open the cover, you could easily remove all the boards.

The power supply and the inverter circuit are in one board while the Main board and the audio board are in separate board. As mentioned before in my previous articles, I do not immediately begin to troubleshoot and repair any board unless I have scanned all the components with my eyes first. The power supply/inverter board look very new and the most obvious sign that I could see was two filter capacitors (1000uf 16 Volt) had a slight bulge on top of its casing. I believe these bulged electrolytic capacitors that had caused the power supply not to function properly. I have checked all other e-caps too but all found to be good.

Usually whenever a filter capacitor located at the secondary side of switch mode power supply (SMPS) have a too high ESR value, the voltage will drop more than half causing many circuits won’t work. Since I already found the bad e-caps, I have to be certain that the secondary diodes (this LCD Monitor is using Schottky diodes) don’t go faulty or leaky too. Upon checking the Schottky diodes (part number are SRF20100C and SP10150) I found both of them to be working fine. Replacing only the two bad e-caps with a good one solved the LCD Monitor problem.

Now get this, if you want to be good in any electronic equipment repair, if possible analyze other circuits too. That means if you every time replace only the fuse and the bridge rectifier you won’t learn anything beyond that problem and you will get bored easily. Let’s take my case for example, after the replacement of the capacitors I will usually analyze other circuits too like finding out what kind of part numbers certain components are using, which type of the inverter circuit is belong to i.e. Buck Royer or direct drive?, why each backlight circuit are using four ballast capacitors?, How many backlights the LCD Monitor is using, what is the inverter IC part number, what is the supply voltage to the inverter IC? How many LED bar lighted up when test on the secondary winding of the high voltage transformer? What would happen if I pull out one of the backlight (will it still work or shut down?). What is the brightness line voltage if set to minimum and maximum? You have to answer all of these questions if you want to be good at LCD Monitor repair. You can apply this kind of questions on other electronic equipment too. This is a continuous process of learning how to be good in electronic repair.

I don’t want you to replace caps or fuse everyday without knowing how other circuits function or what are the components used in other circuits. Although to analyze other circuits take you lots of time but I can guarantee you that the time you have spent are worth it. You won’t be able to go far if you have set your thinking by just changing components and not knowing the surrounding. If you want to improve in electronic repair then you need a change of mindset in you and only you yourself can make the different! Try this approach and I believe troubleshooting electronic or LCD Monitor repair will never be the same again. Have a great and a fantastic year!

About the Author

Find out more at the links below. You will be very surprised to discover that LCD and Electronic Component Repairs can make thousands of dollars even for a novice. You can find out the repairing secrets.

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

Learn about Secrets of Electronic Repairs.

How to Install a Laptop LCD Inverter