Question about Sharp 25L-S100 25" TV

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Sharp tv on pure red

My tv keeps on pure red after replacing crt base.

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  • voyet Nov 06, 2008

    hope you answer it

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First check all RGB drive if have a normal voltage and sync signal if normal maybe the picture tube have damage ,try to replace the new one. gud luck

Posted on Nov 06, 2008

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"tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light"


Check the horizontal output transistor. Replace the same. Collector to base, or collector to emitter short to this transistor is a common case. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

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RCA 27V520T 27" TV has a red tint


Keep down the colour completley, and note whether you get a pure black and white picture. If not adjust the cutoff control, normally these are preset controls fitted on the base card of the TV; to adjust the excess colour seen on the screen to increase or decrease; so that you can get a clean black and white pocture with no tint on it. it is a time taking task; and should have some sort of skill and more patience. Sometimes you may have to retune other two cutof controls [Blue and Green], too to get the desired effect.

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2 Answers

Sharp tv 29" model#29l-fg1l. made from malaysia . the tv standy red light blinking from red to green when press on.nothing yes. what " s be ? please solve my problem?


Dear sir/Madam,

Check power supply(SMPS) section.Check/replace all electrolytic capacitor without power capacitor and resoldaring power supply section after then check horizontal output transistor.


thanking you
uttam
uttam_bm@yahoo.com

Sep 20, 2010 | Sharp Standard (CRT) Televisions

1 Answer

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replace one of your ic of the tv relate to picture

Aug 01, 2008 | Sharp 25R-S100 25" TV

1 Answer

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Replace the CRT base/socket

Jun 17, 2008 | Sharp 25R-S100 25" TV

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Please help me with my sharp t.v model no.21V-A300XB


The problem could be with the CRT base socket, why don't you try replacing that? It is not a costly component, and it is easy to replace. Make sure you buy the exact same thing and verify connections.

Jan 02, 2008 | Sharp 27C-240 27" TV

1 Answer

Rca 32 inch tv


your problem is in red video output circuit.

as you are seeing lines with red color

those lines are called retrace lines.

please check

  • supply to red video output ckt.&red video output transistor.
  • loose crt base or crt base connector.
  • componenrs related to red video output section
  • red signal coming to red video output ckt from signal processor.
  • at last but rare cases crt weak.
  • hopr this will help

good luck

Oct 17, 2007 | Standard (CRT) Televisions

1 Answer

Red screen!


your tv needs to be repaired.the color circuit.CRT or neck board could be defected.good luck.

May 18, 2007 | RCA F27615 27" TV

1 Answer

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Christ, why did you disturb the bias settings? Which stupid @#$% told you to that? The red color was most likely a blown Red Output Transistor, or something as simple as a bad CRT base. Now, I suggest that you switch off the TV, wait for a couple of hours, open the set, and very slowly and carefully pull the CRT PCB (along with sockets base. Then clean the CRT terminals (use a fine emery sheet.) Also check the base for dry (cold) solders. Replace the CRT board. Picture should be normal. If problem persits, then it is definitely the Red Output Transistor or associated components. Get a professional to have a look.

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