Re: Philips 42PFL4307H/12 : No Screen , vertical gray stripes
Hello
I re-open this subject. As you advised me, I changed the card tcon TV and always the same vertical gray bars on the screen .... like the photo ...
Another search track? Slab or motherboard?
thank you and have a good weekend
Jerome
Terrotiste
Member
Last Activity: 02-14-2025, 07:18 AM
Joined: 02-13-2018
Location: L'Hay les roses
-
Re: LG 42LB5820 TV turns on randomly and whenever it wants !!
Hello
I will restart the tv and clean the filters and the slab. As a novice, what are your recommendations for cleaning the filters and the slab? Cloth or produced to make windows? it seems the glass product is not recommended and aggressive
thank you for your help
Good night
JeromeLeave a comment:
-
Re: LG 42LB5820 TV turns on randomly and whenever it wants !!
Hello
Here is a photo of the spot on the screen that may have appeared after the change of the led bars ... The black dot is this dead pixels, or a dust behind the slab?
Thank you for your answers
Jerome...Leave a comment:
-
Re: LG 42LB5820 TV turns on randomly and whenever it wants !!
Good evening
Thank you all ... After changing the LED bars, the tv works ....
However I have in the middle of the tv a priori pixels extinct (black)
Is it possible that when I dismounted the slab of the tv, and that I put it on the table, a crap was stuck behind, and that would hide these 2, 3 pixels missing on the mage?
I wait for your answer before restarting the slab to check
I can pass a photo if needed...Leave a comment:
-
Re: LG 42LB5820 TV turns on randomly and whenever it wants !!
Good evening
Thank you for your reply . I already post a photo of the power card and the main board ...
Tonight I reconnected the TV, it restarted and displayed the LG cube for 3 seconds and then cut again, black screen ...
Are the voltages on the output connector of the power suplied board to be made with the connected or empty hand board?
Thank you very much for your help, because I have very little knowledge in the world of TV. It's not my job ...
...Leave a comment:
-
LG 42LB5820 TV turns on randomly and whenever it wants !!
Hello everyone ,
Yesterday during the deposit of furniture in the place provided for this purpose for the removal of bulky, I found a tv LG 42LB5820 ... in his box well packaged, with his feet, but without the remote control ...
I took her home to see what she saw that she was in an extra clean condition
When first connected to the 220V, the TV displayed the LG logo moving on the screen with the message underneath the "unscheduled" logo
Having thought it was fully functional I disconnected to... -
Philips 480FH6300 logo and reboot ...
Hello everyone
I have a new Philips TV to depanner reference 48pfh6300 / 88 ...
When TV is plugged in, lights up and displays the Philips logo, then turns off and on again and this at the end ...
I flashed according to the files that gave me by philips, it seems he takes the firmware on the USB key, but when I turn it on it does not propose to update the tv ... it turn in a loop on the logo
Does anyone have an idea, knowing that this tv is new ...?
Thanks for your help very much
Cordially...Last edited by Terrotiste; 01-25-2019, 06:08 AM. -
Re: Toshiba 40L3433DG blinking red/green power indicator
Hello again
After studying the tracks on the power supply card the 5v can not exist because no component are implants to generate it ... Q212 does not exist ... neither on the old power supply and on the new ... How so can I force the power card to charge to see the leds of the screen? I have to connect the pin No. 3 to what since I do not have a 5 V.
Thanks for your help
JeromeLeave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Hello
As soon as I find 2 minutes I post photos of the old food and those of new side track.
When I start the Tv, voltage taken at the terminals of the connector that feeds the led strips, the voltage is 118 v which then decreases after a few seconds until 0 ...
I looked for a 5 V on the black connector that goes on the CM, and I did not find!
Is this name? no 5v just but 3 12V pin 10 11 12 ... There is a shunt that I can do to feed the back lignt and be sure that the leds are not in default...Leave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Good evening
The second card bought to replace the HS card was sold as fully functional, but I can not trust what the seller says. You want to take the transformer of the first card is Hs and I solder it instead of the one on the card on the tv and that does not work ... I hope that the transfo of the card is not is not defective and that it is he who would have roasted the transitor then that would also explode the circuits intergrés around the new transistor.
Would there be a difference between the 2 tranfos?...Last edited by Terrotiste; 10-08-2018, 02:28 PM.Leave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Hello
I put you two pictures. The first is the picture of the original power supply of the TV, and the second of the new card purchased on Ebay. You can see that the components around the transistor are different ... and that is the same reference of the power supply board. 069013R6
Thank you so much for your help
Ps: Bizarre if I start the TV with the ok key on the remote control pressed, the led on the front remains red. When I try to start the tv, the led will blink green / red . Some light noises...Last edited by Terrotiste; 10-06-2018, 04:01 AM.Leave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Good evening
The tv will not go to the trash right now .. Take your time Yonshee ....
Diah, thank you for your answer. I downloaded the compressed file but it only includes 2 bin files and images whose sizes seem very large ... no file mb90_en.bin or file usb_auto_update_A1.txt as usually found on the site Toshiba .. How should I use them?
I also said that when inserting the USB key on the TV, it does not seem to be read ... the LED of the usb stick is desperately off ...
thanks a lot for...Leave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Oups it's the tv that will end in the trash if I can not find a solution ...
An idea please?
Thank you very much
JeromeLeave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Good evening
Any idea to help me troubleshoot this damn tv? Or do I have to put myself in the trash?
Thank you very much .
JeromeLeave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Good evening
Find attached photos of the power supplies. The first 4 correspond to the original power adapter (old) and the last two to the current power supply on the TV s that does not work (new). You will see that the barcodes of the two cards are different. For the black connector it seems to be identical. The 2 cards are different because we see that in some places the components are different. Thank you for your help .
Jerome...Leave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Good evening
You have exactly summarized the situation ....
Tv with mosfet curcuit, mosfet change, TV ok for a week, then power supply ko, integrated circuit exploded, change the power supply card by a similar, which is not strictly identical, the tv flashes green / red slowly, then faster indefinitely ...
According to the advice of the site, downloading the firmware on the site of toshiba, 2 files on a Usb key in fat or fat 32 and no 3 , mb90_en.bin & usb_auto_update_A1.txt , no mboot.bin....., insertion...Last edited by Terrotiste; 09-25-2018, 02:13 PM.Leave a comment:
-
Re: Toshiba 40L3433DG blinking red/green power indicator
Good evening
Sorry for the delay of the tests but much to do at work ..
Following your advice, tablecloth between the power supply and the motherboard, I can not find the 5V stby on pin 9. On the other hand I find a 12 v on pins 10 11 12 ... without using any resistance,
Is this normal? the 5v stby seems to be generated by the 12 v through a transistor Q212, from the scheme I found on the net, but no luck this transitor is not mounted on my power card
thank you for your help...Leave a comment:
-
Re: Philips 42PFL4307H/12 : No Screen , vertical gray stripes
Hello
Audio is Ok with Pc connect on HDMI
Cordialy
ThanksLeave a comment:
-
Re: Philips 42PFL4307H/12 : No Screen , vertical gray stripes
Hello
Thank you for your answer
Of memory, because almost 1 year ago that I did the test, the sound was present when I plugged a portable PC on the source HDMI
This means that the motherboard is hs?
Thank you for your help
Cordially
JérômeLeave a comment:
-
Philips 42PFL4307H/12 : No Screen , vertical gray stripes
Hello everyone ,
Holder of a TV Philips 42PFL4307H / 12, I find myself overnight with a TV that no longer displays the images, and against the sound (checked with a laptop connected to HDMI on the TV)
I specify that the backlight works because I see the screen that lights up and I discern on the screen vertical stripes of gray colors in degraded mode of gray, interspersed with black stripes.
In addition, but may be the fruit of my imagination but I have the impression that the bands are not necessarily always in the same places....
No activity results to display
Leave a comment: