Question about Portable Televisions

1 Answer

I need to repair a tv philips LO1.1UAC-7638

La tv enciende y se apaga en cinco segundos, le he probado la fuente, la amplificaciòn del vertical, horizontal. todo resulta estar bien, realmente no se donde estarà el elemento que esta mal, pero se que se proteje, necesito su ayuda. hola colegas, tengo un philips 27 pulgadas venia con la salida horizontal en corto la cambie y prendio pero a los 5 segundos se apaga ya cheque el regulador y esta bueno, ojala pudieran ayudarme, saludos.

Posted by on

  • Anonymous Mar 28, 2014

    dura unos segundos parapadeando el led verde
    y luego se apaga


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 19 Answers

Check the Video amplifier IC on CRT board. I'm sorry I can't write in espanhol. Try. Good l

Posted on Feb 19, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

When I turn it on I have only a vertical line in the center of the screen. I can bump the front of the screen and it will come on sometimes. It's a Audiovox AVT-1498

I bet the line is left to right in the middle of the screen!

This is a vertical circuit problem. The bumping tells me a solder connection/s on the output ic are broken loose or poorly soldered.

It is a chip (I will attach a photo of a typical chip--yours will not be exactly like it but you should be able to locate it).

The part in the photo has the generic number (LA...... which is one designed by Sanyo but used in many different sets) The chip will usually have between 7 and 13 pins.

All someone has to do (unplug set and remove cover) is take it apart, gain access to the main board (it may slide out or if open view of the bottom just turn set on its side after you locate the part---part should be fairly easy to find as it is always bolted to a small metal plate to cool it.

Take a good look at the pins from the bottom and resolder all of them.

9 out of ten times a 10 minute job.

if questions or need help let me know with a comment here.

Apr 06, 2012 | Audiovox Portable Televisions

1 Answer

Onde compro essa tv Coby Tv-dvd1260 - 5.5

Mira estos varios lugares la puede ecnontrar:
Ojala y te ayude esto. Gracias

Aug 13, 2011 | Coby TV-DVD1260 5.5 in. Portable...

2 Answers

One horizontal line comes on screen model of TV is onida KY tunder

needs a new vertical chip call your local tv repair men to get the job done cheap

Jul 01, 2010 | Portable Televisions

1 Answer

Sound and power work but have a blue screen with no picture

me puedes ayudar necesiuto el codigo no puedo usar la tv.tengo un control remoto rca universal

Mar 11, 2010 | Accurian 16-454 Television

1 Answer

Jenson cr2481J locked up with blue screen and red lock in upper left hand corner

tienes una mancha en la pantalla tiene que desmagnetizarla o revisar los conectores de la pantalla

Aug 25, 2009 | Portable Televisions

1 Answer

SEVERE VERTICAL DEFLECTION FOLDOVER Only a narrow horizontal stripe about 1'' high appears on the screen

Hello sneakjock,

This is a problem with the vertical output signal. Check the vertical coupling capacitor, the vertical output between the yoke transformer and the vertical output transistor amplifier or (IC output). My odds are on the coupling capacitor being bad.

You will need a schematic diagram and an oscilloscope to check this problem. If you have a background in electronics you will have no problem solving this problem, however if you do not have a background in electronics, I would suggest getting a qualified TV repair technician to do the work on your TV set.

I hope this helps,

Thank you,


Apr 06, 2009 | Toshiba Portable Televisions

1 Answer

Eleminar password as the TV model 2012 Grundig cuc 300

reset digitando en el control:

A: (canal+,canal-,vol-,vol+) o
B: (canal- vol+ vol- Canal+) o

PD: la "c" fue la ultima que use y funciono!

Mar 05, 2009 | Tvone TV-207 Television

1 Answer


Hola Ulises:

Los menus que te aparecen

Sharp 48=0(8)+u(40)
Brt 132=o(68)+u(64)
Cnt 84=o(6)+u(78)
Clr 60=o(8)+u(52)
Tnt 62=o(30)+u(32)

Son para calibrar a tu televisor, serian brillo, nitidez, contraste, color y tnt que es un ajuste para los televisores que son NTCS o sea los que se usan aca en EEUU.

Para sacar eso de tu pantalla, anda al frente de tu tv y presiona MENU y ahi lo sacas.
Tambien en ese menu, fijate que este la opcion CABLE seleccionada en vez de TV o AIR

Para conseguir eso tenes que luego de apretar menu, ir buscando las opciones que te digo y ver de que queden seteadas.

Sino tenes la tecla menu en tu tv.
Apreta tv en tu control remoto y luego MENU y hacelo desde ahi.

No te impacientes que lo vamos a resolver.
Hace lo que te digo primero y decime como te va y seguimos

Oct 19, 2008 | Tvone TV-207 Television

1 Answer


Vertical Foldover/No vertical deflection
D402 (1N4002) leaky

Jan 12, 2008 | Portable Televisions

1 Answer

I can only see a line

thats a vertical problem.the vertical ic needs to be changed or some other component associated with it. have a tech check your set for repairs.good luck

May 02, 2007 | Philips PR0930X 9 in. Portable Television

Not finding what you are looking for?
Portable Televisions Logo

Related Topics:

221 people viewed this question

Ask a Question

Usually answered in minutes!

Top Portable Televisions Experts


Level 2 Expert

136 Answers

The Knight
The Knight

Level 3 Expert

68301 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Portable Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides