Question about Sanyo DP50747 50 in. Plasma TV

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TV Won't display picture.

Won't display picture unless cycled on and off several times.

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Hello Check its Z sustain board.
TV Won't display picture. - 2_19_2012_3_50_20_am.jpg

Posted on Feb 19, 2012

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When I turn my RCA F32672SB on the picture is clear for awhile than it becomes unclear and hard to view. I turn it off and back on again and the picture is unclear and after turning if on and off several...


after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - TV TUBE ) becomes weak - then 1 of the indication is ...display becomes blur .......so solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching TV --- this adjustment is very important ) ----------iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com) ----- here EHT's price will be around Rs 250 ( US $ 6 ) & for my customers (in bangalore) i will take another Rs 500 (US $ 11) as service charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact TV service engineer ------- because they are highly experienced & can fix this component very easily. ------------ [[ sometimes along with EHT another component called transistor ( big in size - situated close to EHT - it will have 3pins - its size will be 1inch X 1/2 inch X 1/2 cm --approximately ---- black in colour ----- fixed to aluminium metal ) --- will also gets deffective --- so this component also should be checked ]] ---- in your case this transistor is good ... because when this component gets deffective then TV won't get '' ON '' .............so in your case only EHT ( same type ) should be replaced.........100% it works normally

May 21, 2011 | RCA F32672SB 32" TV

1 Answer

42" television that won't display


You have the picture mode set ion 4:3 if its not the TV it will be any cable or satellite you have connected, you need 12:9

May 15, 2011 | LG Televison & Video

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Stand by lights blinking and no picture.


usually after 4 or 5 yrs EHT ( transformer that supplies voltage to tube ) becomes weak - then TV won't get ON.. means no picture no sound ..but LED blinks - in some TVs along with EHT 1 or 2 components like resistor, transistors, etc will also gets deffective ............... so solution is TV circuit board has to be checked to find whether only EHT is deffective or other components are also deffective - price of EHT will be between Rs.250 (US$ 5) to Rs.600 ( US$ 12) ........iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com ) .....i don't have any idea about EHT component's price & service charge in your area........this problem cannot be solved by user unless user is a technical person having idea about components (resistors, transistors,diodes,...etc..), having multimeter , soldering iron & other tools...so my suggestion call TV service engineer or contact sony service centre.........

Apr 19, 2011 | Sony KP-46S25 TV

1 Answer

Turn it on yesterday and i can hear a clicking noise for approx 5 secs then the standby light comes on and no picture. any advice, or reccomened repair


1st POSSIBILITY.....usually after 4 or 5 yrs EHT ( transformer that supplies voltage to tube ) becomes weak - then TV won't get ON.. means no picture no sound ( in some TVs ''garrrr'' like sound comes - that sound is from EHT.... but it is rare....some times ''click click'' sound comes...it is from relay switch ) ..... but LED blinks - in some TVs along with EHT 1 or 2 components like resistor, transistors, etc will also gets deffective ................ 2nd POSSIBILITY - main capacitor (very big in size) is blowing off...................... - so solution is TV circuit board has to be checked to find whether only EHT is deffective or other components are also deffective - price of EHT will be between Rs.250 (US$ 5) to Rs.600 ( US$ 12) & price of capacitor will be between Rs.50 ( US$ 1) to Rs.150 ( US$ 3) ..........iam from bangalore.....i have no idea about component's price & service charge in your area.....this problem cannot be solved by user unless user is a technical person having idea about components (resistors, transistors,diodes,...etc..), having multimeter , soldering iron & other tools...so my suggestion call TV service engineer or contact panasonic service centre

Apr 16, 2011 | Panasonic Televison & Video

1 Answer

SOUND BUT NO PICTURE


I HAVE A PROBLEM ON SHARP 21 INCHES THE PROBLEM IS NO VIDEO BUT THERE WAS A SOUND IF I PUSH THE CHANNEL UP AND DOWN WILL DISPLAY OR VOLUME OK BUT NO DISPLAY BLACK SREEN

Aug 26, 2007 | Sony KV-36XBR400 36" TV

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