Re: SAMSUNG LED TV UE46B6000 problem
thanks.
i checked the led string and they show vF 135 volt . am i doing something wrong or is there a big problem with the leds? shorted?
i get no reading when i check how you said. (blue red probe and white black probe) , i get this reading when reversing .
so Blue - Black probe
white - red probe
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Last edited by anno; 08-13-2020, 03:02 PM.
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Re: SAMSUNG LED TV UE46B6000 problem
I have bought a led tester. How can i test the led strips of this tv?
wich wires ?...
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Re: SAMSUNG LED TV UE46B6000 problem
Thanks for the info, i got the FETS from ebay (uk seller) . no idea if they are fake or not?
Can i test the LED Strings with adjustable power suplly? i have to limit the current?
can you explain that a little bit more?
if its not possible can you recommend a good led tester? or tester from china (aliexpress) is fine too?
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SAMSUNG LED TV UE46B6000 problem
Hi
i have SAMSUNG LED TV UE46B6000 tv. the relais are clicking.
i found out, it start then go into shutdown.
power supply is BN44-00269A
i found a shorted FET (Q9103) , in the led driver section of power supply.
i replaced the FET, the Tv started up and worked short . The image was dark so i increased the brightness in menu. Then the tv shut down and same FET was shorted again. how is this possible
I checked the components near the FET and they are OK.
maybe its a bad driver chip? or backlight are using to much current?...
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panasonic plasma tv tx-p50v20E 10 x blinking
I have a panasonic plasma tv tx-p50v20E . it is trying to start but then 10 times blinking. i thinks the A-board is faulty. i want to standalone test the power supply to check if it working fine.
is there a way to test the psu?
psu is npx816es1 / etx2mm 816esh
A board : tnph0838
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hp probook 6465b bios dump
Hi
i am looking for a bios dump of a hp probook 6450B .can anyone help me
or helping creating one?
thanks
Can any mod change the title please to Probook 6450B . thanksLast edited by anno; 02-02-2018, 02:44 PM.
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flashing MX25L3205D with minipro tl866a programmer error
hi i get a write error when trying to program/flash a MX25L3205D chip ,with minipro programmer
it is supported by the TL866 minipro programmer. i can read succesfully , but get a write error. anyone can help?
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Re: samsung UE40EH6030WXXN not working
The Tcon fuse is ok. How to check the PSU LED connector. i have a scope.
which pins i have to check?
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samsung UE40EH6030WXXN not working
i have a samsung UE40EH6030WXXN that is not working. led blinked 4 times.
i changed the power supply BN44-00552A but still the tv is not working.
the power led is blinking 4 times (if i`m correct)
the ps-on signal is coming to 3.3v , the psu voltages are correct. But then the ps-on signal is going to 0v. When i disconnect the TCON cable from the mainboard the ps-on signal is staying stable at 3.3v . But nothing happens. no backlight or image.
i tried to find a short on the TCON . I connect 12v external power supply to the fuse of tcon, but there is no...
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Re: Asus X77J short when inserting adapter
ok. what is the maximum ampere i can set with power supply?
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Asus X77J short when inserting adapter
Hi
I have a asus X77J laptop with a asus N71JA rev 2.1 mainboard.
when i plug adapter in , the adapter is shorting out. i measure short on plus and ground of the adapter socket. anyone can help?
i need a schematic please. How to open FZ file ? i tried with pcB repair tool, but then i get a license error.
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Re: Schematic FOR Asus N71JA
anyone has a schematic. i have a fz boardview file , but how can i read that file?
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Re: in search of iphone 5c pdf schematics
here is a iphone 5c schematic
not sure if it is the correct one . it is for board 820-3581...
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Re: Toshiba satellite p300-r17 model no pspc4e-04701ldu bios password
i have succesfully removed the password. i used this youtube video
[url]https://www.youtube.com/watch?v=EWiRIqfTPoE&list=FLnoyjz0TWcxpuiPFcj-ztDA[/url]Re: Toshiba satellite p300-r17 model...Fcj-ztDA[/url]
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Re: HP DV7 No display
ok . i did a reflow but still black screen
i see vgacore voltage is fluctuating , not stable. i measure on vgacore coil 1.0 ohm to ati gpu. i think that is to low? is there a short in ati gpu?
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HP DV7 No display
hi
i have hp dv7-4010sd without display. I have cpu core voltage, so i think problem is in display (gpu / gmch?).
this laptop uses gmch and gpu for display then it is muxed?
i don`t have LCDVDD (disp_on) on lcd connector. now i am confused and don`t know what to check. Does the display on signal coming from gmch (northbridge of gpu?) Does the gpu (ATI) only work when there is more graphic power needed?...
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Re: asus K52F short?
i have schematic that are similair. where do i start. can anyone help me with this?
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Re: asus K52F short?
i have most tools.
when i give 3.3v with lab power supply, current is normal . so there is no short on the 3.3v line , i think. still has lot to learn.
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