Author Message
thefixer
PostPosted: Wed Jun 17, 2009 12:39 pm    Post subject: no color in a vestel tv

I replaced stv2247h with stv 2246h and quartz ,so the color is stable: tv is ok now.
torbjorn
PostPosted: Wed Jun 17, 2009 9:42 am    Post subject:

Do you have the same problem regardless of if the tv is receiving a RF signal or if you supply a composite or Y/C signal to the scart connector?

Check with a scope that the video signal at the input to the PAL decoder is in good order - correct amplitude of the color burst, no deformation of the burst or sync pulse etc.
If there is some switching circuitry for component type (Y/C or S-VHS) video signal, make sure that you have chroma signal at the right points after the switches.
Also, try alignment of the subcarrier oscillator according to the tv's service manual.
thfixer
PostPosted: Tue Jun 16, 2009 10:14 pm    Post subject: no color in a vestel tv

Hello very one i have tv ,i think it is vestel, having processor st 92195c3b1/oEo+stv2247h+24c08a.there is no color ,sometimes it is color ,sometimes not.any one to help me with this ,thanks in advance.

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