Ah I'm not so lucky then
.Is it easy to investigate the board or is it not worth doing?
WallArt-Online
Member
Last Activity: 10-11-2017, 11:44 AM
Joined: 08-17-2013
Location: Rotherham
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Re: Asus X555LD No Charge
Ah I'm not so lucky then .
Is it easy to investigate the board or is it not worth doing? -
Asus X555LD No Charge
Hello,
I have a Asus X555LD that does not show any life at all. It is only 1 year old and had very little use. I have looked at the motherboard for any idication to any bad components (only a visual look) but on looking I noticed a chip that had 2 pins soldered together.
I have attached an image of the chip. The markings are 4955N RAX90, this flags up as 'Power MOSFET'.
Should these pins be joined? It looks well joined to be honest I just thought it was strange.... -
LG tv screen goes dark
I have a lg 50px4d the screen goes dark every now and then, you can still see the picture but the quality is also reduced.
It's been doing it for a while but today it seems to happen every few minutes.
I will try and attach an image... -
Re: Toshiba 32BV702B- DEAD
Thank you! And it's cool your only in Leeds! If I ever get really stuck I could pass by you!Leave a comment:
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Re: Toshiba 32BV702B- DEAD
Thank you so much Tom! Is this old broken psu any good to you?
The replacement was only £25 inc p&p so wasn't all bad!...Leave a comment:
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Re: Toshiba 32BV702B- DEAD
comparing the boards is it S814 that needs removing?Leave a comment:
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Re: Toshiba 32BV702B- DEAD
Hope this is clear...Leave a comment:
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Re: Toshiba 32BV702B- DEAD
It's now blinking red and greenLeave a comment:
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Re: Toshiba 32BV702B- DEAD
your joking?! All I probably have to do is short that out?Leave a comment:
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Re: Toshiba 32BV702B- DEAD
Ok even i'm getting confused here.
The board pictured is the one from eBay, It has the exact same markings stamped (model number and revision) but has the extra black plug bit on (circled in orange).
Zomi has said he believes the original board (back in the unit) will have the green cap missing.Leave a comment:
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Re: Toshiba 32BV702B- DEAD
Just realized what you have said, Why would it be missing on one board?Leave a comment:
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Re: Toshiba 32BV702B- DEAD
Is there a way to test it with a multimeter?Leave a comment:
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Re: Toshiba 32BV702B- DEAD
No I never swapped any components, that board pictured is the replacement I purchased on ebay, was stated that it was tested and working.Leave a comment:
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Re: Toshiba 32BV702B- DEAD
Are you refering to the part i have circled in red?
Also the part in orange was not on the original board I swapped but the model of both board is exactly the same...Leave a comment:
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Toshiba 32BV702B- DEAD
Hi,
I was asked if I could have a look at the above tv, there is no display, sound, leds, or anything showing any sign of life before I opened it.
I took the unit apart and couldn't see any obvious damage. Not having knowledge to check voltages or anything I suggested that it was more than likely the power supply board that was dead seen as though there was no standby light lit. After discussing this we purchased a replacement board from ebay and fitted it, I then tried the unit again, -same result no power.
After unplugging the tv I noticed the plug... -
Re: Samsung ps-50q7hd - No display or sound
Ok, i have put the board back in today, i replaced that bad mosfet, but the tv did the exact same thing, so i attempted to get the Vscan voltage.
I did this on the yboard side not on the psu, im not sure if my meter was making a very good connection as they have plastic all the way to the very end. i got a reading of -0.80 down to -0.30 when i powered the unit on at the wall.
if the reading i got was correct could it be an issue with the psu?Leave a comment:
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Re: Samsung ps-50q7hd - No display or sound
bumpLeave a comment:
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Re: Samsung ps-50q7hd - No display or sound
Thanks for all you help so far,
I have not yet checked the voltages as the tv is not with me at the moment.
I have did not replace the 10 chips in the kit, i have done this check on them not sure if this is the correct way to test them.
See the below picture, all of them read 0.21 on the multimeter apart from the one i have marked red this reports OL. when i remove this one from the board all the others then read .870+.
Upon that test i presumed the it was bad and wanted...Leave a comment:
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Sharp LC-32D12E - Line down screen
Hi,
I have the above tv that has gotten a line down the screen. i have removed the back panel and done a visual inspection. On first glances i don't see any damaged components.
What causes this sort of line?
Many ThanksLast edited by WallArt-Online; 10-31-2013, 04:33 AM. -
Re: Samsung ps-50q7hd - No display or sound
I have reversed the diodes back around. is there any other checks i can do such as voltage checksLeave a comment:
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