Question about Sony KV-27S46 27" TV

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Shut down, replaced vert ic which was burnt . new ic gets hot

And shutsdown again. the +13 and -13 read 12.65 v The sound does come up

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Check IC1509, Q1

Posted on Nov 17, 2008

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1 Answer

Service menu mode


You should first check the output voltages comes out from its main power regulator section; and to rectify the cause of this shut down first. Then only, there is any need to enter its service mode. If you're sound in electronics, and 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. Service mode entry, adjust and exit procedure to many brand TVs are given in detail.

Oct 29, 2013 | Daewoo DTQ-20U6SC 20" TV

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Vertical half a picture changed vert out ic & 220mfd 35v could it be vert yoke


If you have a hot air gun like used for dry the hair, apply hot air on the vertical section, if the trouble is solved sure is an electrolitic capacitor, find it hoting one by one with de solder, if not, may be is the defletion yoke, the impedance is not less then 7 ohms.Another probe for the yoke: disconect the vertical wires and supply 12 VAC with a transformer to vertical coil and turn on the tv and watch, if the vertical size is ok, the yoke is ok.

Mar 17, 2010 | Zenith B25A74R 25" TV

1 Answer

Intermittant white line with subsequent shut down


You have a vert ic problem very common tv problem.

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May 17, 2008 | Hitachi 36UX59B 36" TV

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Missing vertical deflection on philips TV


TDA 8362B IC which have vertical freq.output is at pin no.43. (vert.osc) caution for fixing this problem minimise brightness to avoid crt burn. proceed as follows 1 if you are getting sawtooth at output of ic tda 8362 pin 43 then check 1 supply at vertical output ic from eht. 2 yoke connector loose . 3 check vertical output ic parts. 4 finally vertical ic. please check for normal output from power supply even though fault gets rectified just for protection. good luck.

Sep 22, 2007 | RCA 13R400TD 13" TV

1 Answer

Tosjiba cn32g90 no picture or sound


Timm,What you have Is Vert Failure,Toshiba is Noted for Bad Conns On the Vert Ic,Pull the Back off and Gently tap with a NonConductive Inturment and watch the Sceen Look for Heatsinks and Tap on those,If you know,or you caqn solder do so ,Do run the tv for a long time with no Vert or it will Cause BURN IN in the Phophurus

Jul 15, 2007 | Toshiba CN32G90 TV

1 Answer

Still no picture, but there is sound


If you are getting static on screen you dont necessarily rule out the FBT, but if there is a fusible resistor by the FBT that is blowing it may be supplying current to the vert IC, the IC may be shorted internally or externally, check your connections and try replacing IC. Also check the pump up cap and if it is powered off the FBT the rectifier diode.

Jul 09, 2007 | Toshiba CZ32V51 32" TV

1 Answer

Tv screen


HHHHMMM Never heard of goodmans But if its a 14" tv those are one sale for 69.00 in K-mart Well the 13 " is. Sounds like the vert output is bad or a capacitor in the vert out curcuit. good Luck

Apr 25, 2006 | Goodmans 289NS 14" TV

1 Answer

Fixing horizontal line problem


If hitting the set gets the vert to come back then you have bad solder connections on the vert. outputs.. If it dosent then your gonna need to measure the voltage first on the vert output IC see if its about 24 or so volts If it is replace the IC. If its not the replace the vert B+ drive capacitor off the flyback xformer. If you cant find these things then your gonna need to get a schemtic from sams photo facts and post the vertical section and I will tell you or assist youin this repair. If you have had experience in soldering and curcuit work your already ahead in the repair. post the schematic.

Apr 23, 2006 | Panasonic CT-27G23 27" TV

1 Answer

Horizontal Line


you have a vert sweep problem. Probably the vertical output Ic the B+ going to the vert out IC or in rare cases the deflection yolk could be bad but not likly.

Apr 23, 2006 | Panasonic CT-27G23 27" TV

1 Answer

Vertical hold


You dont have enough vertical sweep!! Best thing to check is the vert output device and I think its an IC . BUT before that check the b+ going to that device and see if its low. I will run through a silicon diode right next to the ic. Measure both sides of the diode and if theres a big voltage drop then the diodes bad. Now also these sets are common for the b+ filter cap off thge flyback transformer. Its the voltage line that feeds that diode and the vert output section. Now measure all caps out of cucuit as most will measure good if you dont. Also just for giggles right nrxt to the big IC that has the vert ,horizontal video and sound drive there is if im not mistaking the vert parts start with c4-- or the ic will be ic4-- Its a small cap that will sayc4-- attached to nothing but the ground and one pin of the ic. I've seen this cap cause all sorts of vert problems in the past as its the vert waveshaper capacitor for the vert osc/drive. Good Luck

Apr 17, 2006 | Sharp 25VT-J100 TV

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