Don't tease me like that, I'm getting frustrated, spit it out man
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Re: Panisonic 42inch TCP42S30 not working!!
So the part of the cct that feeds that LED is not producing voltage. I have had a board which was a 1 in a million had an open cct LED and that triggered SOS6.
The 5.6ohm resistors that feedthe DG302s, i forget we checked thos and were ok?Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
ok SN board reads 0L but it DOES light up, sorry didn't see that a bit agoLeave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
i get the same reading (0L) on the SS board LED - D254Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
I might get you to repeat this on the same LED on the SS for comparison. Definitely should not be short. I would expect they'd go open if failed. Using my fluke on a SS it lights with a reading of 1.7Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
Ok, in diode mode, what did the display read exactly what you see .Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
getting a short with both polarities on the led, can't get it to light up.... this mm may not provide enough voltage?Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
Ok. I'm randomly trying stuff here so if it appears I have no idea, I don't! Can you set your meter to diode and place the probes across that D583 both polarities and also if you do it in low light watch carefully the D583 and tell me if there is a very faint green glow.
I find when I probe these with my fluke it has just enough voltage to light it ever so dimly but is noticeable. It will be dim so bright light may be a hinderance.Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
the panel does not light up for long enough to give a normal display... It seems as though as soon as the screen flashes up it trips something and goes dark to SOS6. About 1 second or a little less.
So it does get a full screen of gray/black with backlight before it goes into SOS modeLast edited by Hok; 04-25-2014, 05:16 AM.Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
I know I keep asking this but the panel itself, does it power up to give a normal display or just a flash or nothing at all, just a shutdown with SOS6?Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
i'm guessing the led on SN board is D583, and it does not light up. Tried to power up several times focusing on different sections of the board, never found a green led to light up
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Re: Panisonic 42inch TCP42S30 not working!!
Thanks TW and Hombre. I checked both of the DG302's and they have similar resistance readings across the 2 pins at 46 k ohms. I assume then, that I'm encountering something a bit different.Leave a comment:
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Re: Panisonic 42inch TCP42S30 not working!!
Yes, at first i didn't take that as short, but tried to replace it and SOS6 was gone, tv powers up normaly
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Re: Panisonic 42inch TCP42S30 not working!!
I was wondering about the DG302 IGBTs. Then I read Hombre latest thread. There may be a clue in what he says because he just finished replacing the same IGBTs to get SOS6, he found Q441 had low resistance across the 2 pins but not short. He replaced that and now it works but says he has some sparkles.
Might be worth more resistance checks.Last edited by tw2005; 04-25-2014, 01:00 AM.Leave a comment:
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Hello,
i have many 5050sff. all of them, and how i experienced over many years for all about 250 DELLs goin through my hands, are fully flashable and can be serviced in any way when the service_mode jumper is set.
Never ever i experienced problems with that.
Now i have one 5050sff machine, where this jumper isnt working at all.
I do not get the normal messge that the jumper is set when booting and a short test with FPT just confirms this. Everything is locked -->> EVEN for reading !?
The history of the machine is that i used it in my office... -
Hi,
I have the above mentioned bord after repair, which was related to a lot of missing smd devices on the back of the board.
There were almost 20 devices missing, caps, resistors and some diodes/mosfets.
The board is generally working now, all PCIe ports are working, Windows installs normally.
However I have a problem with SATA ports 4-7 (the board has 8 SATA ports) - disks are not beeing recognized by the BIOS neither by Windows (which is usually normal in case BIOS does not recognize them).
The SATA 4-7 driver network is quite simple chipset<->buffers/drivers<->SATA... -
Hi i have one Macbook Air 2020 where touch ID is not working (it's not scanning fingerprints). Touch ID was working before, there is no error message during scanning fingerprint it's just not scanning on screen you can see only fingerprint but there are no red updates as when it's working. Power button is working fine.
I've checked boardview and also schematics but i'm not able to find anything related to TouchID ... i have similar issue on a2338 where there was problem with PP3V0_TOUCHID and after replacing UT610 it was working but here i'm not able to find anything related to... -
Hi masters, I need your help.
I am working on Lenovo Legion 16ITHg6
Motherboard number NM-D721, no BV, no schematic but I am attaching very closes ones.
INPORTANT: My motherboard version is with IT8258 IC, that is controlling keyboard and RGB LEDs.
My problem is on UI142, +3VALW_AG is not stable, floating from 0V to 3,3V.
AGKB_PWR_EN_N signal is floating too (that is why+3VALW_AG not stable).
Power LED is not working as well, power button working well.
UI26 ??? is there any firmware too? Powered by +3VALW_AG.
Motherboard...05-04-2025, 09:35 AM -
Hi there,
It is sunday and I got a faulty hp pavilion 15-cs1006na. No available schematics on the entire world. It flashed 5 long 4 short and no post then I discovered the usb 2.0 2. pin in one of the usb-a socket bent backwards and been shorted to 2. and 3. pin of the 3.0. after removing this short in the port the laptop came alive.
Now the laptop freezing randomly. The webcam, the built in mic and according to the device manager one more thing not working which are connected to usb. If I connect anything what have usb 2.0 plug that wont work if i plug anything what...
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