Question about JVC AV-27530 27" TV

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Re: Hi Pravin,thanks for the reply.where abouts in the circuit would i find the capacitors in the Vertical stages.And I have read before opening up a tv casing is a bit dangerous due to high voltage. is it really that dangerous even if i haven't connected the power or to get to the circuit board would i have to risk any danger?please..i really want to do this just need some help where exactly to find the capacitors on the circuit board.

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Hi there. we owned the same model. we were told by a professional tv repair person to just throw it out. it will cost more to repair than the price we originally paid for it. so we did. junk.

Posted on Jun 27, 2007

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Re: re:

If you have no power my friend, the problem is not capacitors in the vertical circuit. Your problem is is the main power supply or possibly in the sweep power supply. You will need to first get a service manual for this set and know how to read it. I wish it was that easy as to look and tell you to replace this and to replace that. Yes, some sets do have problems that are common, but this is not the case most of the time. There is voltage inside this set even when it is unplugged, so if you have no TV repair experience, my best advice would be for you to call in a pro to assist you in this repair. Good Luck

Posted on Jun 20, 2007

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Tda9380 ps/n3/3/1664

Denotes the absence of vertical sweep. Check all the solder terminals at the vertical output IC for any loose soldering. If this IC do not get its supply voltage, or, if it is faulty, or, any connection tracks to vertical deflection yoke is open, this kind of fault can occur. In this case, as there is horizontal line on the screen, TDA1930 is working. So, troubleshooting should be concentrated to its vertical scan output stage circuits. Check for any bad capacitors too. There will be 5 to 9 electrolytic capacitors will be there, related to vertical scan circuit. Replace all of them once, not by individual. If you wish to get more details, check the site linked here. Pull up older posts.

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My set is having a vertical related problem.When turn it on it displays a good screen and picture but a few seconds there is a folding of screen up and down that starts from the low portion of it..and that...

Please check the voltage in Vcc pin of the vertical output IC. If it is higher than apropriate voltage, replace the filter capacitor in the DC supply line of the IC. This voltage comes from one of flyback transformer windings so you should look for its rectifier diode and capacitor near the transformer. If this voltage is correct, replace the electrolitic capacitors in the vertical circuit output and some 100/220nF poliester capacitors near the linearity pin of the IC.

Sep 29, 2013 | RCA Standard (CRT) Televisions

1 Answer

24af45 from top to bottom picture is wavy until set warms up

Check and replace all the electrolytic capacitors at its vertical scan output stage circuit. Replace all of the once.

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2 Answers

I have a 6 year old 32" Toshiba tube .tv. I have

thir is somecondensers on the tv needs to be changed especialy on pwer supply and vertical circuit it is easy fault but needs technication,,,but first be sure thir is no floresent lamp common with the same supply of the set

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No vertical deflection -Horizontal line on tv

check or re solder the ic of vert. defl.

Jun 09, 2009 | Sansui 27" TV

1 Answer

How do you fix a white horizontal line across top of Orion TV?

Hello eatkinson,

This denotes a problem with the vertical deflection circuit. This is more then likely the result of the vertical coupling capacitor failing. You will need the schematic diagram of the TV to find the capacitor in question. it is located between the vertical output stage and the vertical deflection winding of the yoke transformer. In addition check the continuity of the vertical winding of the yoke transformer this can cause the same problem. In any event the problem is that the vertical deflection signal is not getting to the yoke transformer or the yoke transformer is malfunctioning.

I hope this helps,

Thank you,


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Oct 23, 2008 | Zenith C27A24T 27" TV

1 Answer

Insufficient vertical height

1 it is due to electrolytic capacitor defective in vrtical output stage. 2 loose contact in vertical. 3 fault due to feedback ckt in v/stage. as per schematic diagram is concern check

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1 Answer

Horizontal white lines at top of screen.

This problem is generally due to aged Electrolytic capacitors in the Vertical section. Again, to save time, I invariably replace all the 8-10 El caps in this stage at one go. solves the problem, saves time, and also protects the customer from bringing in the machine again in another 2-3 months, for another bad capacitor problem.

May 25, 2007 | Panasonic CT-27D20 27" TV

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