Re: Philips 32PFL6606T 32" LED no back light
what resistor should i use? between pin 2-stanby and which other?
what resistor should i use? between pin 2-stanby and which other?
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Re: Philips 32PFL6606T 32" LED no back light
somthing just to limit the current a little, a 100k will be ok ,taken onto the 5v railfixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!
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please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!Comment
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Re: Philips 32PFL6606T 32" LED no back light
sorry taken from the 3.3v railfixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!
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please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!Comment
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Re: Philips 32PFL6606T 32" LED no back light
so from stanby to bl_on?Comment
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Re: Philips 32PFL6606T 32" LED no back light
to turn the power supply on
3.3 to standby
to turn backights on
bl_on to bl_ctrlfixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!
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please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!Comment
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Re: Philips 32PFL6606T 32" LED no back light
ok sorry, nothing happened, then i noticed when i switched off some thing arc'd near capacitors
gotta to log off now but ill be back tomoro, if im getting voltage back from the main board but this isnt controlling the back light would this definatly be the power board? is it possible to check the voltage going to the LED's or will this be High Voltage(more than 500v for meter to read)?Last edited by shepp; 04-02-2012, 02:56 PM.Comment
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Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Philips 32PFL6606T 32" LED no back light
Ill let you know what it measures tomorrow, but I got a feeling there will be no voltage, this ones gonna be a real pain to sort out, but I have faith, I will not give upComment
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Re: Philips 32PFL6606T 32" LED no back light
I'm sure you can fix it, but if you are ready to give up, PM me before you throw it in the trash, I'll offer you something for it shipped.
There are a few things that can cause this, but you will need to have some basic troubleshooting skills. Testing and eliminating basic subsystems. Anyone can do that...Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Philips 32PFL6606T 32" LED no back light
Will the supply for LEDs be a.c.?Comment
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Re: Philips 32PFL6606T 32" LED no back light
Cant spot if you got the manual but its here
Not a lot about power supply (Its a secret) but a bit in the wiring diags and the troubleshoot might help you.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Philips 32PFL6606T 32" LED no back light
just printing it out at work now thank you selldoor, i wont be home til later but i will post results of dc voltage check going out to the LEDs when i get homeComment
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Re: Philips 32PFL6606T 32" LED no back light
right then, voltages are as follows.....
1. A1+ 150V
3. C1 - 123V
5. A2+ 123V
7. C2- 0V
9. A3+ 72V
11. C3- 36V
13. A4+ 36V
15. C4- 0V
THESE ARE TAKEN FROM SWITCHING OFF AND SWITCHING ON AGAIN, BECAUSE THERES A FAULT THEY SWITCH OFF AND THE ERROR CODE 17 IS LOGGED,
im guessing from this there is a problem with the supply for A2-A4? because they are not 150v like A1? the diagrams in service manual help a little but i think the control side is working ok, and there is no diagram for the power supply to the LEDs that i can seeComment
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Re: Philips 32PFL6606T 32" LED no back light
basically A1 and A2 are fed in series
and A3 and A4 are the same, so getting there, A3 and A4 is only being fed half the voltage it needs any ideas what might cause this? there is some surface mount stuff, ill upload another pic of the under neathComment
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Re: Philips 32PFL6606T 32" LED no back light
the back,Attached FilesLast edited by shepp; 04-03-2012, 01:30 PM.Comment
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Re: Philips 32PFL6606T 32" LED no back light
just checked these 2 diodes and they are reading both ways at 0.08v and 1.1v but with them being surface mount im not too sure if i can change them,
the markings on them looks like A6 (D702 and D703) thats if they are diodes,
looks like they control a transistor that powers the primary coil for the LEDs along side another transistor further up the board, if 1 is working and the other isnt could this explain the fault? that the coil is only getting half the voltage to power the LEDs?Attached FilesComment
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Re: Philips 32PFL6606T 32" LED no back light
How easy is it to get to the backlight LEDs?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Philips 32PFL6606T 32" LED no back light
full strip down, but if there is 4 sets of LEDs and only 2 sets are getting the correct 150V surely this means the fault lays on A3 and A4 supply somewhere because there not getting the full 150v there only getting 72v?Comment
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This happened last Saturday and today I finally had time this morning before I went to work to replace two non brand capacitors
I will let you be the judge weather or not these are bad or not according to the blue ESR meter that I am using
I am comparing them to a brand new one that I installed
The display came back on and the programming was not lost which I was surprised by I would have thought that when the display went blank that so did the memory as well
I going to let it run for several days before I remount back on the wall next to the... -
hi guys, i need your help again...i have tcl u65x9006. while i was watching it become darker like when a movie ends, little by little the image disappear. now if i turn on i have back light on, after like 1 min i have also sound but no picuture. the back light is on i take off one at time the ldvs but nothing change always no picture. i tried to cover with a piece of paper the pin of ldvs i cover like 7 8 pins but nothing worked. the tv stay with no picture. there is a tcon board.i checked the voltage there on the fuse i have 11,8 volts. there is caps in shorts on the exit of the tcon i have... -
I have a problem with the back-light on a 12-years-old PHILIPS 42PFL7404 TV with DELTA DPS-298 power supply. Screen time is 11000h. A month ago the image started to flicker slightly and after a minute it turned off, but keeping the audio. It was necessary to disconnect from the line to turn it on again, with the same symptoms (Error code:17). The PSU seems to have all the components and welds fine. For a while I ran it without the back cover and it held up well without shutting down. With a heat fan I looked for the susceptible area and found it in the return circuit and supervision of the power... -
Hi people!!
The owner said it showed bad picture once in a while (attached)
I see that there is back light but no picture.
I want to ask if it is possible to disable the NVIDIA GPU and use the intel one?
Also attached schematic and BDV
LINK to schematic & boardview - https://www.badcaps.net/forum/troubl...ll-vostro-5590... -
Hello all,
I have Philips Oled 55 (804/12) with black screen and red light blink.
I have opened TV and tested voltages based on similar oled topics, on power supply board i am getting ps_o/f 3.3v and 5v for t-con_o/f while panel_o/f is 0v. And i get black screen.
Also i have done self psb test and i am getting on psb +12V_t and also + 24V for panel. (Measurements on dmm are + 12.3V fot t-con and 22.4 for panel)
When i power only psb and tcon with 4 ribbons for panel i only get black screen.
My questions is what should i do next...
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