Question about Sony FD Trinitron WEGA KV-32FS120 32" TV

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Kv32hv600 the tv comes on the picture is a bright red, than the picture dissapears replaced by a white line down the middle of the tube and tv shuts down, this all happens in afew seconds yo here tv power up and in a flash it shuts down. it than flashes a code seven which i read somwhere is is an over voltage problem but how do i fix it thanks

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Re: kv32hv600

This is the problem in vertical section. There is no vertical drive pulse continuously from deflection processor. May be dry soldered in vertical output section or failure in jungle ic setion. Without getting continuous pulse from system the processor shuts the tv to the protection mode. This can be serviced by the qualified technicians only.

Posted on Sep 14, 2007

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2 Answers

Turn on pic turns red with thin bright red horizontal lines

Sorry to say, but that's usually the sign of a bad picture tube. One of the elements inside the tube shorts and you see the picture you describe, and the set shuts down due to high voltages getting to places it shouldn't. There's no solution except picture tube replacement, and that is uneconomical. You're better off replacing the TV when the tube goes bad.

Mar 31, 2009 | Toshiba Standard (CRT) Televisions

1 Answer

Green picture

a green screen on power up with retrace lines. At shut down a point appears in the middle of the screen. Sounds like either a shorted G2 grid, or bad flyback. If a phospher flake has shorted the grid in the tube, you can sometimes have luck by using a megger set at 1000VDC, to burn away the short. This is usually caused by the line HV going too high causing the anti-UV protection to kick in so fit a dummy load 40W lamp instead to the line output to allow measurements to be made.

Oct 19, 2008 | RCA 20F512T 20" TV

2 Answers

Tv cannot display only a line in the screen

for short circuit it will show  like this if no short circuit
i think ur tv display tube has dead if it is in warenty pls exchange the tv

Jul 31, 2008 | Sharp 25R-S100 25" TV

1 Answer

No Picture Has a bright horizontal line with off white & gray vertical bars

The Problem Philips 27TS54 c101 27B800-7562 White horizontal line in the center of the screen. Color is present in the first half inch of the leftist corner of the horizontal line.
Audio is present and controllable. The green power led from a cold non plugged in state remains solid until CRT goes to ignite. A click is heard then the green power LED blinks.
I found service manual diagram of repair part or parts and install instructions
I request any info or tips you might have pertaining to this problem
P.S. 25”-27” CRT board APT187

Possible Answer Posted by PEE_WEE 4/28/2005
On the CRT circuit board(picture tube), you will find R3340, which is a 10 ohm 1/3w resistor. The location of the resistor is printed on the bottom of the ckt board. It is burned open, replace with a 10 ohm 1/2w resistor. This will solve your problem. The original resistor was sized too small, should have been a 1/2 watt. This resistor is mounted standing up on ends. Mount the replacement resistor the same way. Be careful and don't get the circuit trace too hot and damage the circuit trace. (it's very small) The resistor is located on the crt(cathode ray tube), pcb(printed circuit board) socket. The resistor supplies apx +200v to the collectors of the r, g, b, video driver transistors. If this voltage is low, it causes excess brightness(excess beam current), causing the set to "shut-down". If the shut-down is too quick, you will NOT see the excess brightness, because the picture tube has not warmed-up enough to display anything on the picture tube. To see if the set displays "excess brightness", you will need to turn the set "on" about 5 to 10 times. This will heat the picture tube enough to display "excess brightness", IF that is the PROBLEM. Of course, there are OTHER defects that will cause a tv to shut down. There are built in safety circuits, that will "activate" if excess voltage/current or heat is detected anywhere in the set.

My resistors are not numbered the same on my crt board APT187. GSM 02/20/2008

Dec 31, 2007 | Samsung TXK2754 27" TV

1 Answer

White horizontal line down middle of TV screen

caution whenever you see horizontal line please reduce brightness of your tv for safety of crt. your problem in vertical section only mostly due to loose contact in connector,print or loose components.

Sep 20, 2007 | Mitsubishi CS-35505 35" TV

1 Answer

TV shuts off and red standby/timer lights blinks red until I power the set off. When it shuts down it does so with a very loud snap. When I turn it back on the screen is blue and has light blue...

The most common cause for what you are seeing is a shorted gun in the picture tube. When 2 elements (heater and cathode) of one of the guns inside the neck of the picture tube touch, that gun goes full on and overloads the flyback (high voltage) transformer. If it is in the blue gun, the screen will go bright blue with light blue "retrace" lines in it. The computer senses the overload and shuts the set off. At 2 years old the tech most likely tried removing the short by arcing between the elements. This works sometimes but the short often comes back a few months later. Another attempt at removing the short could be tried, and it might work this time, but it may or may not work for long. The ony other solution is to replace the picture tube but that would cost much more than the set is worth. A qualified tech will be able to tell you if this is the problem in your set.

Aug 21, 2007 | Sony KV-35S36 35" TV

1 Answer

Tv is too dark

You didn't say how old your TV is. If it's very old the picture tube could be weak. IF not then there is a screen adjustment on the flyback transformer that you might try to adjust. Sometimes you can access this adjustment without removing the back cover. If you see an adjustment through a hole in the back of the cabinet marked "SCREEN" then you might try turning this control clockwise while watching the picture in a mirror. Only a slight adjustment may be needed. Don't make it too bright or the set may shut down or have small white (retrace) lines in the picture. If you have a projection TV then dust on the three picture tube lenses will darken the picture. These are general statements that apply to different TV's. I assumed that this is a direct view 32 in. TV. Stargazer

Feb 26, 2007 | GE 31GT660 TV

2 Answers

Dark picture (HELP)

Open up the back of the set but be very carefull. Notice a large black block with a large red wire that runs up to the picture tube. on one side of that large block where the thick red wire is comming out of are two controls, one should be marked focus or F and one should be marked screen or S. With the set operating normally and not touching anything else, slowly turn the control marked screen or S clockwish till the picture gets bright enough. If you go too bright the set will shut down or you see small thin white lines so back down on the control. then touch up the focus and your good to go. good Luck.

Dec 01, 2006 | Toshiba 32A42 32" TV

1 Answer

Thin horizontal line across picture

I really dont understand the problem Could we see a picture of this please?

Jun 14, 2006 | Toshiba 35A44 35" TV

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