what component can i fix on main board for sound?

[vinceroger69]

Re: what component can i fix on main board for sound?

yes tv on and test the pins budm mentions.

[mattstolte]

Re: what component can i fix on main board for sound?

ok on vcc I get 12v and on mute and standby I get nothing

[budm]

Re: what component can i fix on main board for sound?

OK, the IC is being commanded to stay on STBY/MUTE mode, if you read page 3/11 and 4/11 then you will understand the STBY and Mute function.
The STBY should have slow voltage rise to least 1.8VDC applied first to get out off standby mode and then a delayed voltage rise of 2.9VDC to get out of mute function.
I have doubt from the beginning that both amplifiers inside went out at the same time, now you need to trace out the connections of the stby and the Mute pins to see where they are connected to.

[mattstolte]

Re: what component can i fix on main board for sound?

OK, the IC is being commanded to stay on STBY/MUTE mode, if you read page 3/11 and 4/11 then you will understand the STBY and Mute function.
The STBY should have slow voltage rise to least 1.8VDC applied first to get out off standby mode and then a delayed voltage rise of 2.9VDC to get out of mute function.
I have doubt from the beginning that both amplifiers inside went out at the same time, now you need to trace out the connections of the stby and the Mute pins to see where they are connected to.

this is starting to get real complicated, but i am willing to learn if you guys continue to walk me threw this. there aint no way in resetting the main board so it gets off the mute?

[budm]

Re: what component can i fix on main board for sound?

It is going to be easy to walk through unless you have wiring diagram for this board, this is multi layers board which you will have to trace out those two pins to see where they go to. You will have to trace out the board and draw up the diagrams.
What you can do one thing just to make sure those two pins are not grounded out is to test the resistance between the gnd and each one of those two pins to see if it shows very low resistance, other than that not much else.

[mattstolte]

Re: what component can i fix on main board for sound?

it is going to be easy or it isn't?>

[budm]

Re: what component can i fix on main board for sound?

It is not going to be easy. Try tracing it out then you will see how difficult it will be.

[Clydeuk]

Re: what component can i fix on main board for sound?

Just a daft question. The speakers aren't switched off in the sound menu are they?

I got caught by that one once.

[mattstolte]

Re: what component can i fix on main board for sound?

No. And I'm proly gonna give up on this cause Im lost