Ir para o conteúdo principal

Repair guides and support for televisions manufactured by Sony.

736 Perguntas Visualizar todos

Bravia KD-60X690E, 2 red blinks

Greetings,

My TV (Sony Bravia KD-60X690E) suddenly doesn’t turn on. It’s only about 2 years old. When I try to turn it on the only thing that happens is the stand-by light flashes red twice. I’ve already done some research and saw that this is usually a power board issue. I got myself a multimeter and started reading voltages and this is what I’ve found so far:

With the TV plugged in I have 5v to standby (expected)

I don’t have voltages to anything else until I try to turn on the TV, then I have voltage for about a second or two before it dies off. All of the voltages looked fine except in 2 areas

  1. None of the areas that should give 12v to tcon (there were 3) had any voltage being sent. So looking at the image that would be the smaller bottom plug number 3 and 4, and the 1 tcon 12v on the larger plug
  2. The LED was suppose to get 155v, but was getting 120v

What does this mean? Is the power board need replacing? The board was a little dusty but didn’t see anything else that looked wrong (but I haven’t tested any of the components) Thanks

Block Image

Responder a esta pergunta Também tenho esse problema

Esta é uma boa pergunta?

Pontuação 0
6 comentários

No expert here but as you mention if no obvious visual damage, then personally I think my next step would be to check for blown components in switching power supply; power transistor(s), fuses, diode packs, caps, continuity, short circuit etc. You also might want to check out https://old.reddit.com/r/TVRepair/ to see if any relevant info/advice on your unit there too.

por

@propman appreciate the reply!

por

Hey did replacing the board fix your issue?

por

Did you ever find out what the fix was?

por

Replace the power board and still have two red blinking lights what do I do

por

Exibir mais 1 comentário

Adicionar um comentário

2 respostas

Pergunta mais útil

Aaron Szczepaniec  the 2 Blink error code indicates that functions on D Board have shorted out The D Board is the main power supply. So unless you have some obvious damaged components and/or a schematic of the power board to do further testing, I’d start with a replacement of it. It would be good if you post a picture of the complete board for us to see.

Esta resposta foi útil?

Pontuação 2

2 comentários:

Thanks, I'm going to order one and try that first

por

Did replacing the power board work or was it the mother board?

por

Adicionar um comentário

I had the same tv and pretty much the same issues. I replaced the main board and that fixed my tv. There were no problems with the power supply board.

Esta resposta foi útil?

Pontuação 0
Adicionar um comentário

Adicionar a sua resposta

Aaron Szczepaniec será eternamente grato(a).
Exibir estatísticas:

Últimas 24 horas: 1

Últimos 7 dias: 7

Últimos 30 dias: 50

Duração total: 4,533