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JVC tube tv modle # AV-27980 won't turn on at all.

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Check the low voltage regulators and the horizontal output transistor.

Posted on May 21, 2008

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We have an JVC AV-27020 tv that only turns on from being plugged in. Once on it stays for about a minute or two before it shuts off. What do we do? Please help!!


t.s.s. log for jvc televisions - Wa6ati.com

wa6ati.com/Jvc.html
JVC, AV32D200, Dead, Television will not turn on. ... rectifier diodes D922, or D923 the voltage never pops up as soon as the TV is plugged in. ..... deflection collapse after 30 seconds vertical IC okay 9volt regulator being pulled down to 3 ... JVC,AV27020, SYSTEM CONTROL, AV27020 Tech only getting a blue screen no ...

180125 T.V WILL NOT STAY ON: JVC AV-27F702 27" TV

surfstudio.ru.dev.kinday.ru/.../t180125-t_v_will_not_stay_jvc_av_27f70...
Detail: I HAVE A T.V. THAT WILL ONLY STAY ON FOR ABOUT 5 SECONDS BEFORE ... a friend, was working when it left his house, I have place on tv stand,plugged it in, ... My jvc av-32890 makes a click and shuts off 95% of the time. ... JVC AV-27020 TV Blinking LED, Static Electricity on tube but no sound and image.

Nov 08, 2015 | JVC Televison & Video

1 Answer

Jvc tv won't turn on


Check its main power regulator section for damaged component/s

Nov 30, 2012 | JVC AV-35750 35" TV

1 Answer

JVC Modle HD-61FN97 2006 65 inch tv light went out replaced it now can not adj brightness


Aside from the customer controls you might be able to turn the screen controls up a bit to get more brightness, they are on a black block inside the set.

Nov 29, 2012 | JVC AV-65WP55 65" Rear Projection...

1 Answer

JVC AV-F29MX3 I was watching a film on my DVD connected to the TV, when suddenly the screen turns black with no sound heard. Also the front light indicating 'ON TIMER' and 'ECO' started blinking in red...


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 jvc service centre.........

Apr 21, 2011 | JVC AV-F29MX3U 29" TV

1 Answer

I have no picture on my JVC AV-27730 tv. Where is the picture tube and can i replace it myself?


Hello
Picture tubes are available at electronic spare part shops. You have to give them the number and type of the picture tube, to which your JVC TV has. Picture tube, along with its Yoke fittings are integrated, and you can replace it by yoursef at home. Be very carfull in handling the picture tube, as they are highly vacumed, and will explde by hard hits. There will be four seating screws on the four corners of the picture tube, and these slots will clearly alaign if the picture tube selected is orginal number. Diamentions of these holes will be different to spherical and flat picture tubes. So you must first aware of the type of picture tube, which the TV has fitted earlier. OK.

Mar 06, 2011 | JVC AV-27730 27" TV

1 Answer

JVC 65 inch AV-65WP55 tv, the color red is failing


The tube is old. You need to contact a service center. He may try to boost it from inside. If it doesn't work, then need a new tube.

Jan 09, 2010 | JVC AV-65WP55 65" Rear Projection...

1 Answer

Sound but no picture


replace C960 1000MF/35VOLT electrolytic cap
it only has 2 legs and easy to replace

Sep 04, 2009 | JVC AV-27980 27" TV

1 Answer

TV Has no pitcher


you could have a shorted tube Green disconnect CRT board from green tube if set stays on tube is shorted also check video ic on crt board.

Dec 07, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Tv comes on then goes black power light blinks on and off modle # JVC AV-56WP74 56


Check the coils on the main board. Coils mean round ferrite donuts (1 inch or less) with copper wires on it. I have seen this come out.
if not check convergence amp ic's
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 20, 2007 | JVC AV-56WP74 56" Rear Projection...

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