philips 42pfl6007h dead...

[dellxps15]

hi all, a m8 got this tv that was working fine till some days ago when suddenly it wont turn on.

if he press remote control to turn on, the red light on tv blink, but nothing happens.

if he left tv on its own, the red led start blinking twice.


hre is some picture of mainboard inside that looks like new... no bad component spotted.

any help would be good

edit: ive done some measurement and on a component on green pc board, i got 5 volt for 1 second when psu board emitted one high tone noise, and then that 5 volt went down after that seconds. that things repeat every 30-60 minute. didnt measured the interval time exactly, but keep doing like this.

[Davi.p]

Re: philips 42pfl6007h dead...

Cacchio ho dovuto leggere 5 volte per capire che m8=mate!! Mannaggia..
Why that mate gave it to you? It was already defective?
If i'm right theese boards suffers from software problems, i have a 6008 series with a similar fault, you better solder 2 wires to the SDM solder place on mainboard and on a GND spot then join those together , switch on the current and the tv , watch the SDM mode led pulsing, and after download service manual to know what's the error, long blinks are decimals, short are units, ex. 5long 3 short means 53.
If you have 53 much probably software error, you need to find a way to upgrade it, serv. man. tells you several recovery modes on how to begin update.

[dellxps15]

Re: philips 42pfl6007h dead...

tnx for reply. problem is that tv doesnt seems to get 5 volts. when there is a memory problem i see philips logo should pop up on tv, while here is totally dead....

edit: strange thing as i said is that on the marked red zone in picture if i put multimeter for measure volts, it is 0 volt..... then after a bit it goes to -0.4 (negative volts) volt for some seconds, then to 5 volt (positive this time) and then back to 0 volt.

why that - 0.4 volt ?

[Davi.p]

Re: philips 42pfl6007h dead...

That zone is for audio output VS internal loudspeakers, i repeat if you want to hear me (old scurengion.. =-) you have to enter SDM mode..

[dellxps15]

Re: philips 42pfl6007h dead...

post an edited picture of the shorted wire i have to do....

[Davi.p]

Re: philips 42pfl6007h dead...

There's no need of a picture, watch yours, on the center bottom zone there's an electrolytic cap, on top of it the big flash memory, on the side of it the SDM place clearly visible, for the GND place you can peel the wire and wrap it around a screw for board fixing.

[dellxps15]

Re: philips 42pfl6007h dead...

tnx, now i found it. so i have to solder a wire to that smd and one to gnd, and then connect them so smd is shorted. after that power on tv and read code ?

[Davi.p]

Re: philips 42pfl6007h dead...

Yes, SDM not SMD... or to be more safe use only a wire from SDM to the chassis screw..

[dellxps15]

Re: philips 42pfl6007h dead...

tnx very much for reply. soldering done and the result is an error code 53

what's next ?

[Davi.p]

Re: philips 42pfl6007h dead...

So you only get led blinks and no audio/video?
As my last sentence on post #2, check the serv. man. for instruction on various recovery modes for upgrading it. I never tested them with mine...

[dellxps15]

Re: philips 42pfl6007h dead...

yes tv is dead except that blinking. tried put firmware on usb but no sign of life....

couldnt be that bga need reflow ? i see video on youtube that when software problem, philips logo at least comes on...

[Davi.p]

Re: philips 42pfl6007h dead...

Which term do you search on youtube?
Watch this: https://www.youtube.com/watch?v=MGpUdFhivg0&t=22s
if you try many many times with remote or on board keys do you have a boot?
Since tha fault is no booting at all, maybe the software to upgrade is the standby one that normal upgrade doesn't upgrade..

[dellxps15]

Re: philips 42pfl6007h dead...

philips tv led blinking

[Davi.p]

Re: philips 42pfl6007h dead...

I don't see the videos you say, what about my previous post?
It can also be a defective standby sw chip (25xxx)

[dellxps15]

Re: philips 42pfl6007h dead...

im not expert on tv . the problem as describes is a tv that keep cliking every around 30 seconds (relè?) but no picture no sound no logo. nothing. all voltages looks present, the bga chip also get hot and i measured some voltage on the ssb and there are different olts, but no picture. wich one is the swich chip and where is it located ? and measure i can make with multimeter ?

[Davi.p]

Re: philips 42pfl6007h dead...

you describe your problem? you never told about relay clicking.. what switch chip are you talking aboout? I never said this..

[dellxps15]

Re: philips 42pfl6007h dead...

dunno if its a relay, but every some times it make a pitch noise and 5 volt comes from that audio zone, so i can imagine its a relay ? 25xxx is a bios ? i can try to reprogram it , but wich file i need to put on it ?

[Davi.p]

Re: philips 42pfl6007h dead...

There are no image files available for theese tasks, i have an image for another model, 6008 series, 25xxx is standby software, not main software. I think the fault is more on the NAND flash than serial flash, because led blinks and the diagnostic routines works on the standby processor and memory.. It was helpful to have acces to the debug serial line on the board, but it is needed a low voltage rs232 i think, and on my board there are lot of connector solder places for uart et similar..

[Davi.p]

Re: philips 42pfl6007h dead...

For the RS232 adapter you can use a CH341 eeprom programmer / USB-232 adapter.

[freakaftr8]

Re: philips 42pfl6007h dead...

Check soldering on all 8 pinvoltage regulators on main board. I had a philips do this where the Voltage for the 1.1 v core to the main processor with shooting up towards 6 because of the control pin on one of that regulators for feedback were not making a good contact. The processor itself was making a high pitch ringing sound when this occurred with a 2 Flash shut down.