Hello i have this sharp tv with 1 bulging cap on the power supply tv showed classic symptom of bad cap by long start up time.. Anyhow the cap is a 2700uf 16v 105 deg and i went to order them wit a higher V rating but it seems i ordered 4700uf 25v 105 deg.. will i be able to use it or do i need to order the correct one?
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Re: Sharp LC-42SB45U POWER SUPPLY
I would not use that capacitor, cannot be sure it will work.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Sharp LC-42SB45U POWER SUPPLY
It would help if you listed brand/series of the original and replacement capacitorComment
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Re: Sharp LC-42SB45U POWER SUPPLY
I wouldn't use that capacitor even if it was right capacitance. KC brand -- likely generic non low-ESR so could be worse than original... If it works could just die in a month's time.
You could get this capacitor from digikey:
http://www.digikey.com/product-detai...2370-ND/613731
+$2.75 shipping
and it should be just fine.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Sharp LC-42SB45U POWER SUPPLY
ahh ok i didnt know brands made a difference.. so now i know there are cheap quality caps (kc) and good quality caps.. what are the names of good caps for future reference?
and how do u tell ESR from Non ESR?Comment
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Re: Sharp LC-42SB45U POWER SUPPLY
Also if there are any other capxon caps of the same series you should seriously consider changing them. One bad - probably all bad.
That is not a usual value for a startup cap either. Its usually a small one on the primary side 50v 47uf but it can vary.
Panasonic FR FM and FC series or Nichicon and Rubycon are considered good but you should buy from a good supplier as well.Last edited by selldoor; 12-30-2013, 04:36 PM.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Sharp LC-42SB45U POWER SUPPLY
Ok I ordered it Thanks again TomComment
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Re: Sharp LC-42SB45U POWER SUPPLY
This. Those 47uF 25V look like CapXon KM. They do not do well on these hot boards, and since you're already ordering from Digi-Key you should order the rest to replace all the CapXon, then you will be able sleep well at night knowing you don't have to worry about other caps failing
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Re: Sharp LC-42SB45U POWER SUPPLY
ok i willl do that they are cheap enough anyway
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Re: Sharp LC-42SB45U POWER SUPPLY
Let us know how it goes
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Re: Sharp LC-42SB45U POWER SUPPLY
Will do.. already got an email from Digikey with tracking number...man they are fast :-)Comment
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Re: Sharp LC-42SB45U POWER SUPPLY
Update: caps came in yesterday. i installed them and tv is up n running. . thanks tom for the digikey tip and thanks to everyone else that chimed in...Comment
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Re: Sharp LC-42SB45U POWER SUPPLY
Glad to hear, enjoy the TV.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
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One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
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Opened it up and discovered the power supply is making a faint clicking or ticking sound.
I measured the amp's output to the woofer and it pulses up to 50mv DC to be driver. The pulses coincide with the power supply ticking/clicking.
I measured the power supply output going to the amp board and it too has this pulsing. Voltage cycles... -
Greetings - first post. I'm awed that a forum like this exists. It's a dream come true. I'm not even kidding.
I've got a 13 year-old Sharp LC52LE700UN television that's developed a problem of powering itself off after 30-45 seconds. If I pull the mains cord and reconnect, it will come back on right away without so much as a button push...then turn off after 30-45 seconds.
Service manual S37X3LC46E77U is attached to this post, as well as a front and a back picture of the RDENCA336WJQZ DPS-286AP power supply taken after completing my work.
Each time that the...
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