terry
Senior Member
Last Activity: 03-15-2022, 09:24 AM
Joined: 10-18-2007
Location: UK
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Testing SMPS
I read some where that you can test a SMPS transformer was light bulbs, I repaired all the faulty part in the SMPS but still not working. (I think the transformer is faulty). Can I test the transformer input this way, if I check it with a multi_meter there is about 330v DC there.... -
Re: LED Backlight Upgrade Kit Opinions
I have use lots of these LED Backlight Upgrade Kit. on 24" and 22" monitors the picture is very good, a little bit whiter than LCD backlights. The only problems I had with them is the brightness control work the wrong way round. If you put 5v power on the brightness control backlight are dim, 0v backlight full brightness. -
Re: Help finding part
I have ordered some from Farnell.
Thanks for all the help.
TerryLeave a comment:
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Re: Help finding part
I have checked the data sheet and it is a TOP225EN, thanks for the help.
I am having problems finding one of them, is there anything I can use as a replacement.Leave a comment:
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Help finding part
I have just got hold of a Dell ST2220LC 22" LED monitor with a faulty PSU, the board number is: 715G4110-P01-000-0H1S. I have checked the board and found a faulty part. I can not see the part number of it, can any help with the part.
Regards
Terry... -
Re: Samsung LE37A457
I turned it on one day and the picture was upside down, I have done a factory reset but this did not help.Leave a comment:
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Re: Samsung LE37A457
Still trying to sort this problem out, with the upside down picture.
Has any one got a service manual for this TV.
Thanks
TerryLeave a comment:
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Re: Samsung LE37A457
I have check if there is a firmware update and I have the latest one already installed.Leave a comment:
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Re: Samsung LE37A457
No not connected to a computer and is the same on DVI, Scrat and standard arialLeave a comment:
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Re: Samsung LE37A457
Here is a picture of the problem...Leave a comment:
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Samsung LE37A457
I have a Samsung LE37A457 37" TV and the picture has flipped upside down. I have look in the service menu and can not see any way to chance it.
Can any one please help.
Thanks
Terry -
Re: Faulty Hanns-G HL272
Here are some more pictures, Thanks for your help.
Terry...Leave a comment:
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Re: Faulty Hanns-G HL272
It looks like 722136Leave a comment:
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Re: Faulty Hanns-G HL272
Sorry here is the picture...Leave a comment:
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Faulty Hanns-G HL272
I have a Hanns-G HL272 27" monitor with a dead PSU. Can any one the me what this part is and where I can get a data sheet on it.
Thanks
Terry -
Re: Replacement CCFL lamps
Here is a link to the one I am looking at
[url]http://www.ledbos.com/index.php?main_page=index&cPath=98_100[/url]Re: Replacement CCFL lamps<br /> <b...h=98_100[/url]Leave a comment:
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Replacement CCFL lamps
I am after 24 x 19" wide screen CCFL tube to repair some 19" HP monitors. I have just found a website with them at a good price [url]http://www.ledbos.com[/url]
Has any one used them before, or are they to good to be true?https://I am after 24 x 19" wide scr...od to be true?I am after 24 x 19" wide screen CCFL tube to repair some 19" HP monitors. I have just found a -
Re: LG W1941s strange problem
I have got fitted the new chip (TOP258PN) and now working great.
Thanks for your helpLeave a comment:
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Re: LG W1941s strange problem
Thanks Ben, I have just tried the freeze spray and the monitor turns on right away. I will order a new chip and that should sort out the problem.Leave a comment:
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Re: LG W1941s strange problem
Yes the diodes are good, I have replaced all the cap still the same problem. I did replace the large main cap just to make sure.Leave a comment:
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