Our Sony 14" KV-M1420U television has suddenly lost its colour.
The picture is still perfect, but in monochrome. Sometimes the colour will
return if the television is switched to 'off' or 'standby' and then switched
back on. When the colours fails, it changes instantly from colour to black
& white, as if a switch had been operated. There is no gradual fade.
The various on-screen control icons and the channel numbers still retain
their colour (light green), even when the picture is in black & white.
As it's a Sony, I suspect dry joints. I also hope that the specific nature
of the fault will point to a particular board or component that I can repair
Can anyone give me a simple guide as to what might be the faulty unit and
where it is located?
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