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Vertical chip Can you tell me what this chip does for a TV? Sony CXA1279S

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  • JAZCAT Apr 11, 2008

    Can you help me to find a website that shows different chips and what they do?

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  • Master
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That chip is known as a sound processor, not a sound amp but a processor. Nothing to do with the vertical.

Posted on Apr 10, 2008

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2 Answers

On power up I hold the power button down, I can hear some sort of relay kick-on, sometimes a horizontal white line appears across the screen, then it kicks-off, and the red led blinks four times...


Hi,
White line across the screen indicates that tv got vertical deflection failure problem that may be due to vertical output chip failure. If that kind of problem occurred, tv select protection mode and red light starts blinking 4 times.
Please check vertical output chip in tv main board and replace it to solve tv issue. This job needs soldering work so local tv repair shop will help you.
Thanks.

Feb 01, 2011 | Sony FD Trinitron WEGA KV-24FS120 24" TV

1 Answer

Tv was dead no vvidei no sound after checking found that power supply capacitor and horizontal deflection output transistor was defective i lost that tr no part no please tell me what should i do?


Hello
There are few models of Sony telivisions which uses transistors in vertical output section. It will be a matched pair of PNP and NPN transistors. According to Sony schematic which I have with me used 2SB6494(PNP) AND 2SD669A(NPN) as vertical outputs and 2SC2383 as vertical drive, 2SC1364 as vertical oscillator. Just try to get the orginal numbers or find its equivalents from data book. Ok.

Oct 17, 2010 | Sony KV-35S42 35" TV

1 Answer

The TV wont turn on


It depends on your knowledge and skills to fix this tv problem.
Power light 4 times blink shows problem in vertical deflection section and most probably vertical output chip got defective or not getting proper voltage supply to function correctly.
Check vertical output IC connections on main board and resolder if found dry/ colder solder.
Hope these info will help you to fix tv problem.

Jul 15, 2010 | Sony FD Trinitron WEGA KV-27HS420 27" TV

1 Answer

I know very little about this tv except that two days ago it was reduced to a thin vertical line in the middle of the screen. I could still hear the sound and change the channels, but the line remained. ...


easily repairable if line is up and down it need a horizontal chip if the line are left to right it needs a vertical chip should be all of $60

Jul 01, 2010 | RCA MM36100 36" TV

1 Answer

TV TURNS ON,LINES ACROSS SCREEN THEN TURNS OFF BY ITSELF


sounds like a vertical problem, usually you'll see one white line across the screen, but one I worked on would come on and the bottom half of the picture was gone and there were lines across the top of the screen.

If you know how to solder & can find the vertical output chip then you could try resoldering the pins. If this doesn't fix it then it needs new parts.

Mar 08, 2010 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

I have a Sony KV-27S36 purchased mid to late 90's. I suddenly have sound but no picture. At first, I could get a picture by turning it off and on and letting it warm up, now I cannot even do that. ...


yap! That sound vertical problem! just solder all old parts in vertical section and check yoke if have mold? Check all looking old's electrolytic capacitors and change that if nothing happened tha'ts the time to change vertical IC.

Sep 24, 2009 | Sony KV-27S36 27" TV

1 Answer

The picture is larger than the screen. I cannot see all of the text at the top or bottom of the screen.


this is called over voltage in vertical . some
WEGA serise have ADJ for this when the
vertical chip / or a cap gets weak.
the adj is in side the tv sorry

Jun 28, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Sanyo DS27880 TV, vertical sweep is gone, sound ok


Check for cold joints on the vertical chip. DS27880 sets use a la7841 typically.

If soldering doesn't fix it, simply replace the vertical as well as the 1ohm 1/2W resistor and
the fast recovery general purpose (nte556 equiv) near the flyback.

Mar 24, 2009 | Sanyo Televison & Video

1 Answer

Power light flashes 4 times


The 4 blink code usually indicates a loss of vertical deflection. Check the solder connections on the vertical IC. If the connections are OK, replace the chip as it is defective. This chip will be a small flat IC with about 1 pins or so attached to a heatsink. It will be marked LA3847 or something similar.

Keep us posted.
Dan

Jun 12, 2008 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

Sony Trinitro 36" HD TV


There is a circuitry problem with the scan control, this is a job for the "Shop" as I always advise get a firm "Quote" B4 prceeding with any fix... Generally these days there is no Horizontal/Vertical Hold, as such, it is all done by the Compter Chip inside.

Jul 31, 2007 | Sony FD Trinitron WEGA KV-34HS420 34" TV

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