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Signal Lamp
Repairing the DELL E153Fpc LCD Monitor with the complaint of display shutdown after few seconds (power LED still on) was not difficult. Normally when this type of problem happens, we would first suspect the inverter board, then the filter capacitors and lastly the main board. A defective in one of the lamps and a faulty TL1451AC PWM IC or inverter ic may caused the display to shutdown as well. If the lamp is defective, it will send a feedback to pin 3 or 14 of TL1451AC IC and caused it to stop producing output signal thus the display just shut off once you switch it on. The power board is using a SG6841D pwm ic and a FQPF7N80 power fet . If this power section blow, it is quite easy to troubleshoot because it has fewer components. You can also use other part numbers to substitute the power fet.
As usual, after opening up the cover, I would first check for any burnt components, loose connector, cracked board, dry joints and etc before doing the voltage test. As for the lamps, I would check it last because lamps were seldom spoilt. Upon scanning for any bad components before starting the voltage test, I found a filter capacitor that had turned into darker color. Using the ESR meter revealed the ESR ohm has shoot up to 12 ohms. This filter capacitor located at C922 with the value of 1000 micro farad 16 volt. If you donÂ’t have the ESR meter you can always use the digital capacitance meter. The value that I got from measuring the bad capacitor was 57 microfarad. If you donÂ’t have ESR meter, make sure you get one-itÂ’s fast and accurate.
Now, the question is why a filter capacitor can cause the display to shutdown? If you carefully see the picture, I’ve drawn the yellow path to show you how the voltage is flowing. By the way, the voltage at the bad filter capacitor line is 12 volt. The voltage passed through a SMD transistor in the start circuit and flow straight to pin 9 (VCC) of TL1451AC IC. In order to let the 12 volt to flow through the transistor and reach the vcc pin of the ic, first, a ‘on’ signal must be sent from the main board to trigger the transistor. If no signal send to the transistors (off signal), both transistors can’t be turned on and no voltage will follow through the ic. Thus if the main board or any of the start circuit components spoilt, there will be power but no display because the TL1451AC would not send signal to the Royer type L, C resonant and boost circuit, so no high voltage produced by the high voltage transformer and this will lead to no display.
In the above case, the LCD Monitor display shutdown was due to the ripple because of the bad filter capacitor. The ripple caused the TL1451AC IC to be unstable and eventually shutdown the output signal. Replacing only the filter capacitor solved the DELL E153Fpc LCD Monitor shutdown problem.
Conclusion, donÂ’t always presumed that LCD Monitor is very tough or difficult to repair. From the above article, you could see that the caused of the shutdown problem was only a bad capacitor. If you fully understood how LCD Monitor works, then chances for you to successfully repair the monitor is very high but again it depends on the availability of spare parts. If you ever come across any LCD Monitor sent to you for repair for the first time, go ahead and start troubleshoot it. Who knows one day LCD Monitor repair could become one of the major source of income to you and your business.
Jestine Yong is a electronic repairer and a writer, for more LCD Monitor repair secrets, please visit his website at http://www.electronicrepairguide.com/lcd-monitor-repair.html now.
How do I replace the turn signal lamp on a 2001 Pontiac Montana?
first you remove the headlight assembly..then the turn signal assembly...
It is difficult..take it to a shop..its worth the money..trust me
V-LEDS.COM 92 LED 6K WHITE AMBER SWITCHBACK TURN SIGNAL BULBS
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 FEDERAL SIGNAL K8107210A HALOGEN LAMP 24V NIB**  US $9.07
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 METRO LH TURN SIGNAL GEO 97 96 95 4 DOOR MARKER LIGHT LAMP US $9.98
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 FEDERAL SIGNAL K8107166A 24V LAMPS NIB** US $9.07
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 1994-1997 CHEVY S10/BLAZER CLEAR SIGNAL CORNER LIGHTS US $26.99
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 2X T20 7443 21 LED Car Turn Signal Stop Light Bulb Lamp US $3.29
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 PRIME CHOICE PARKING SIGNAL LIGHT LAMP PASSENGER SIDE US $14.67
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 PRIME CHOICE PARKING SIGNAL LIGHT LAMP DRIVER SIDE US $14.67
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 PRIME CHOICE SIGNAL LIGHT LAMP ASSEMBLY DRIVER SIDE US $15.62
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 PRIME CHOICE SIGNAL LIGHT LAMP ASSEMBLY PASSENGER SIDE US $15.46
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 PRIME CHOICE PARKING SIGNAL LIGHT LAMP DRIVER SIDE US $15.56
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 PRIME CHOICE SIGNAL LIGHT LAMP ASSEMBLY DRIVER SIDE US $15.92
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 PRIME CHOICE SIGNAL LIGHT LAMP ASSEMBLY PASSENGER SIDE US $15.62
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 PRIME CHOICE SIGNAL LIGHT LAMP ASSEMBLY DRIVER SIDE US $15.46
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 PRIME CHOICE PARKING SIGNAL LIGHT LAMP PASSENGER SIDE US $16.15
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 PRIME CHOICE SIGNAL LIGHT LAMP ASSEMBLY PASSENGER SIDE US $16.18
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 TYC 12-1589-00 Turn Signal / Back Up Lamp Assy US $19.32
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 NO NC Momentary Round Push Button Switch Red w 24V Signal Lamp US $8.89
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 95 97 Ford Explorer Signal & Park Lamp Lens LH Driver's US $26.99
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 JDM SMOKED 94-95 ACCORD FRONT BUMPER SIGNAL LIGHTS LAMP US $21.99
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 AC/DC 12V 3 Concealed Terminals LED Signal Indicator Lamp US $6.42
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 Depo Chrome Housing Clear Lens Bumper Lights Civic/CRX US $8.99
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 GMC Truck Upper Corner Parking Turn Signal Light Lamp Left & Right Pair Set US $19.95
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Polder Traffic Light Kitchen Timer, White
$13.44 This Timer Digital Kitchen w/ Traffic Light Countdown - Polder #TMR-85-90 is called a traffic light timer because it has changing colored lights as the time elapses. The timer lights up green with one minute to go, changes to orange with 30 seconds left, then turns red with 10 seconds to go. It is easy to see because it has an inclined base for sitting on the counter and magnets on the back to mou... |
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Vintage Traffic Light and Signals History Film: Seeing Green DVD (1937)
$9.99 The traffic light may be a device that you have never even thought about - but have you ever tried to drive without them?! They are a crucial element of our automobile centered society and provide automated traffic coordination on the millions of congested American roads. Seeing Green is a vintage educational film from 1937 about some of the earliest models of traffic lights and how they were deve... |
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69 Watt A21 Traffic Signal Light Bulb, Clear
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Traffic Signal Light Bulbs
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Telephone Ring Signalers - Model Sonic Ring Jr. - Model TR 50
$27.48 Telephone Ring Signalers Sonic Alert has three easy-to-use Telephone Ring Signalers. All three telephone signalers install simply by plugging into an electrical outlet and a modular telephone jack. When the phone rings, a light plugged into the signaler will flash to alert you. Only one telephone signaler is required in a home, even if you have many telephone jacks. With a Sonic Alert telephone si... |
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The Lamp Post EP
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MAGLITE XL100 LED Flashlight
$70.09 The Maglite XL100 3-Cell LED Flashlight is truly a breakthrough in flashlight technology! This handy little flashlight combines a mult-function LED light with a sleek, compact design. The XL100 features variable brightness settings, constant on, SOS, and adjustable blinking modes. This user-friendly handheld flashlight features a rotating barrel for quick activation and control of the variable bri... |
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IR Remote Controller 44 Keys for RGB LED Light Strip
$2.75 Easy to connect and operate Control a variety of LED light by adopting an advanced micro control unit With Voltage: DC 12V Max. output current: 6A Max. output power: 72W Working temperature: -20°C - 60°C... |
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Traffic Light
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Fisher-Price DC Super Friends Batman Lights & Sounds Trike
$38.98 Action sounds, flashing blinkers and exciting voice phrases from Batman encourage little heroes to hit the road on imaginative adventures! This trike's sturdy construction features an oversized front wheel for fast pedaling, a wide wheel base for stability, easy-grip handlebars, slip-resistant pedals and a three-position adjustable seat that grows with kids. Requires 3 "AA" (LR06) batteries, not i... |
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