Question about Proscan 19LA25Q 19 in. LCD Television

3 Answers

Power Will not function

Tv turn off by its self. Has red power indication but will not turn on by button or remote.

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  • cwdav May 02, 2008

    Tried suggestions with no success. Took back to vendor since it was still under warranty

  • MADEMA May 04, 2008

    TV WILL NOT TURN ON BY MANUAL OR REMOTE.

  • cwdav May 31, 2008

    Sears replaced the AC Adapter and the probem was fixed.

  • Anonymous Jun 15, 2008

    It won't turn on.

  • handy cam Jul 09, 2008

    Tv Turned itself off or into sleep mode. When attempt to turn on red light flashes. Green light shows but does not take over. Have moved to new location and have same results. Have removed and restored power cord. Same results. Power cord shows green light.

  • samariche Jul 09, 2008

    power button is on red..the green light refused to turn on

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You were spot on with the replace the capacitors suggestion. I had two and both were blown. I could not find exact matches but the results are superfine. Thanks!!!!

Posted on Jul 09, 2008

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It is most likely a 1000mF@25v capacitor in the power supply. Replacing this cap usually fixes the set.

Posted on Jun 27, 2008

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1. Try this - hold the menu button down for 10 seconds. TV should power up; you will have to turn off front panel buttons on menu.

2. You can also try plugging in the TV through the USB on its panel to a computer or USB charger, and it may work. However, this is only a temporary solution.

3. Powering down the set or putting it in standby may have allowed the power supply to cool. Weak capacitors often go out of spec when they cool, thus preventing a section of the power supply from firing up properly again. There is a simple trick...just warm the back of the TV with a hair dryer for 5-7 mins after you have unplugged the TV. Look for the little areas of holes in the back panel of TV. Use these as your guide at where to use the hairdryer, but don't hold the dryer too close (say 5-6inches away). (Make sure the dryer is on High heat). If the TV doesn't turn on after you have heated it up (like it tries to come on but then turns off) you need to unplug the TV again, this resets it. And repeat those steps till it works. Resetting the TV after it fails to turn on is the key. Also, just leave the TV on. Don't turn in off. Since it is LCD, it doesn't take much power...only a few bucks extra a month for your utility bill.

4. A circuit board may crack about some of the larger components mounted on it. You can inspect the PCB's for fractures, and then repair them. It may also be poor soldering that has failed. I would be checking for these things first.


5. If you want to go in for a long term solution, you can easily replace the whole power board or just change the faulty capacitors. You will have to open the back panel and take a look. You can make out which are faulty, because their caps will be swollen on top. Here's a sample pic (not same model):
Power Will not function - d443bf7.jpg
Check the specifications of the faulty capacitors, and get the replacements from your local electronics shop. If you are comfortable with this, you can use a pair of needle nose pliers to G-E-N-T-L-Y pull out the defunct capacitors. Once that is done, solder in the new capacitors carefully. If are unsure how to do this, try to get a friend who knows how to do this kinda stuff do it for you, or get a qualified technician. Warning: If you do not have a background in electronics repair, or are inexperienced, get a qualified technician to do it for you.

REMEMBER there are very dangerous voltages inside a TV that can KILL. Be sure to work SAFE when dealing with electricity. DISCONNECT THE POWER BEFORE YOU DO ANYTHING.

Hope that helps...Should you have any further questions, please feel free to post them here.

P.S. - If you find that the solution/answer I provided led you to, or resulted in a fix, please close the ticket with a FixYa! rating. I would be very grateful for your show of appreciation.
If it hasn’t, please do not assign a rating just yet. Please post back as to what steps you took, results, etc, and I will try to assist you further as best I can. I am here at your service.

Thank you for using FIXYA!

Cheers!
IrishDruid

Posted on May 02, 2008

  • Swilin Sampson
    Swilin Sampson May 31, 2008

    Hi,




    Just wanted to inquire if your issue is resolved, or if there is anything
    further I can do to assist you…





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1 Answer

Why does my flat screen tv turn on and off by it self and the only way to stop it is unplug power cord?


This is an indication that they capacitors in the power supply are going bad.

Jan 20, 2015 | Televison & Video

Tip

ERROR CODE AND SERVICE MODE


Service tool modeHow to access
1. Select [SRV-TOOL] in Service Mode.
2. Press [OK] button on the remote control.
Display of SOS History
SOS History (Number of LED blinking) indication. From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.
This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory shipment setting].POWER ON TIME/COUNT
Note : To display TIME/COUNT menu, highlight position, then press MUTE for (3sec).
Time : Cumulative power on time, indicated hour : minute by decimal
Count : Number of ON times by decimal
Note : This indication will not be cleared by either of the self-checks or any other command.Exit
1. Disconnect the AC cord from wall outlet.
Hotel mode
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu In order to display the Hotel mode setup menu, please enter the following command(within 2 second).
[TV] : Vol. [Down] + [REMOTE] : INPUT (3 times)
Then, the Hotel mode setup menu is displayed.
3. To exit the Hotel mode setup menu Disconnect AC power cord from wall outlet.
Troubleshooting Guide
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timingCheck of the IIC bus linesHow to access
Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.
Self-check indication and forced to factory shipment setting:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
Exit
Disconnect the AC cord from wall outlet.
Power LED Blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.

FOR MODE DETAILS CHECK THE FOLLOWING LINK

www.electro-medical.blogspot.com
google.com/+AjinGopakumar

USE SEARCH TAB TO FIND MODELS OR USE DROP DOWN MENU

on Jun 30, 2015 | Panasonic Tc-50ps14 Tv Power Supply Board...

1 Answer

Have a mitsubishi model 73640 and the power light turns on makes some noise thens turns off by it self.


The red indicator merely shows power is getting to the set. Probably the power supply has failed.

Jul 17, 2014 | Televison & Video

1 Answer

X322BV-HD*WXC100


Warranty is usually 1 year parts and labor. Contact mfc for warranty service. likely main board.

May 28, 2013 | Televison & Video

1 Answer

Tv won't turn on


Replace the power supply board the blinking power indicator is usually indicating the power supply needs replacement or repair. You can get the replacement power supply boards from www.tvcircuitboards.com

Oct 20, 2012 | Samsung LN-S3241D 32 in.LCD HDTV

1 Answer

Power light is green than goes red


Hi beinhauert,

The symptoms you've mentioned indicated that the unit turned to standby mode. This is an indication that there's something wrong on the TV. To help us narrow down where the fault came from, please access the built in "Self diagnostic Screen". Follow the steps below.
In standby mode (red light is on), press the button on the remote control in sequence "Display", "5", "Volume (-)", "Power". Self diagnostic screen's displays its log of error. Please let me know the error code with corresponding numerical value "1" means error has been detected, "0" means no error.

Jdvillanueva

Jan 06, 2012 | Sony Grand WEGA KDF-60WF655 60" Rear...

1 Answer

My sony grand wega kdf e55a20 power light keeps blinking red. what can the problem be?


Red is an indication signal for power connectivity. Recent devices have two power functionalities. Using the remote control would turn off the display of images to power saver mode. A red power light imiting diode display is indication that requiring display of images is achievable by pressing on the display mode button once more. NOTES; Powering on the device may be achieved with the same function buttons as shutting down the entire Device to least communicate with the power supply circuity from outlet sources. The device is in power off mode ready for repower on with the remote control. Requesting the TV to shut down completely would require to press on the TV button firmly until power cuicuit are disbabled completely. Refer to the TV user guide to ascertain fucntionaility modes usual during operations. Goodluck

Jan 08, 2011 | Sony KDF-E55A20 55 in. LCD Television

1 Answer

Remote control not working with tv


The remote control is an acess to the TV device for example only from a distance. A remote controll for functionality would require to insert batteries a power source making possible communiction with devices requiring reception transmittion of signals. The remote is handheld pointed to the direction of TV requiring signal before button pressed woudl achieve response. a common button to start the remote control experience is pressing on the power button, that displays a signal on the TV. The TV should momentarily produce a sound and lighting effect,, and displaying on the dark screen a light blue screen. The initial signal response from remote control to TV indicates devices are functioning as required. Additional buttons on the remote controll could perform functions of several available.
The remote control has master button, menu on which every additional function is deriveable. Once the menu button is pressed with remote pointed in the direction of TV, should dicplay a list of options on the blue screen already established by power button. Every additional remote control device functionality is achievable by only after the first two buttons have been powered and pressed to display option results on a screen of TV. The remote controll buttons remaining perform complementary functionalities. For example, the arrow keys on remote control make movement of the options displayed on the screen, where a comfrimation button or identified as select allows to confirm remote functions displayed on the screen. A remote control could have several functionalities only accessible once made to display in screen. The three most common buttons on a remote control are First power button that powers on the TV, menu button that displays a list of functionalities on the powered on bl;ank blue screen, and using the arrow buttons on the remote would moves an indicator arround the screen area options. The selection button makes confrimation of the option.

Dec 02, 2010 | Philips Televison & Video

1 Answer

Turn off after a few hours


If the TV turn itself off then perform the following steps:

(i) Check if the Sleep timer is activated.

(ii) Check if the Parental Guide prohibits viewing during that time and/or limits amount of viewing time per day.

(iii) Check the batteries on your remote, low battery power may cause random signals from the remote.

(iv) Disconnect all the cables from the TV then reconnect them after a few hours.

(v) Ensure the power cord from the TV is directly connected to a functional wall outlet.

(vi) You may also try resetting the TV to the original factory settings by pressing the Reset button on the remote control supplied with the TV when in Menu.

The following is the information indicated by the blinking patter of the standby/timer lamp on the TV:

2 times : Power does not come on.
Load on power line shorted.

3 times : The TV has entered standby mode.

4 times : Has entered standby state after
horizontal raster.
Vertical deflection pulse is
stopped.
Power line is shorted, or
power supply is stopped.

5 times: No raster is generated.
CRT Cathode current detection
reference pulse output is small.

6 times: No picture

9 times : No sound

Furthermore, the TV is equipped with a self-diagnosis function that you can use to determine whether the issue is related to any hardware malfunctioning. Perform the step given below to run self diagnosis:

Quickly press the remote command button in the following order from the standby state.

Display -------> Channel 5 ---------> Volume -(minus) --------> Power ON.

If the Self Diagnosis display numeral "1" for any parameters then a fault has been detected and service will be required.



wish u good luck!!!!!!!!!!

Sep 17, 2009 | Sony KP-65WS500 65" Rear Projection...

1 Answer

Model 19LA25Q


Unplug. Wait 15 seconds then plug back in.

No guarantees, but it might work.

Apr 06, 2008 | Proscan 19LA25Q 19 in. LCD Television

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