This can be a fault with the colour demodulator section. You will need a
solid background in TV servicing, the service manual, and a scope to
troubleshoot it.

I would suggest taking the set to a reliable service centre, or a Sony
authorized service rep to have an estimate for the repair. I doubt you
will fix this yourself.

The reason for the display showing the fonts in green, is that the font
generator in the uPC drives the green video channel only. The colour
demodulation for the TV signals is done much farther back in the system.

--

Jerry G.


wrote in message
ups.com...
This TV went black&white suddenly. The color genration must be OK
because the menus all appear in fine color.
It is B&W both in tuner and monitor mode.
Would appreciate any help.
John Rakos
johnATrakos.com