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Alba LCD32880HDF Intermittent sound

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In_Focus:
Poor crimps on the cable harness between the PSU to the main board can cause symptoms of intermittent loss of sound or going dead on many Vestel chassis.

sordids:
I have the same model where I just have the unit flashing on standby all voltages on PSU seem fine but I can't even get the side buttons to work so maybe the main board is shot so could this be the caps need changing on the main board
Thanks

In_Focus:

--- Quote from: sordids on November 30, 2013,17:45:14 ---I have the same model where I just have the unit flashing on standby all voltages on PSU seem fine but I can't even get the side buttons to work so maybe the main board is shot so could this be the caps need changing on the main board
Thanks

--- End quote ---

99 times out 100 it's usually the PSU.

Davy:
I had it on a couple of times on Alba and clones, the problem was the speaker in my case it was just the one channel.

The flexible wire that runs to the voice coil..... one lead had mysteriously corroded, the it'd work for a while then as the program got interesting off it went, I scraped away the black gunge on the cone to get a soldered connection to no avail.

I wouldn't care but I can get better sound out of a tin can as diaphragm... they are lacking in the sound department and we're in the 21st century.

Can you not scope the inputs and outputs of the chip?

Dave

sordids:

--- Quote from: In_Focus on December 01, 2013,15:07:02 ---
--- Quote from: sordids on November 30, 2013,17:45:14 ---I have the same model where I just have the unit flashing on standby all voltages on PSU seem fine but I can't even get the side buttons to work so maybe the main board is shot so could this be the caps need changing on the main board
Thanks

--- End quote ---

99 times out 100 it's usually the PSU.

--- End quote ---

ordered a new psu still the same so any ideas ?

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