RCA PTK195 Unusable signal on composite or s-video input
 

When you select the input you can see the vidéo for about 1 sec and it
look fine then the unusable signal come in.
The video signal is ok at pin 15 of ic U13101(uP) horizontal and
vertical sync are present and normal at pin 34 and 35, all vcc look ok.
The video from the tuner is ok but sometimes when the menu is display
you can see the video signal true it (flash).
I have replace the uP but no change.

Any help is welcome.

RCA PTK195 Unusable signal on composite or s-video input
 

Problem solve, IC201 was the problem.(LA IC)



Rejean a écrit :

When you select the input you can see the vidéo for about 1 sec and it
look fine then the unusable signal come in.
The video signal is ok at pin 15 of ic U13101(uP) horizontal and
vertical sync are present and normal at pin 34 and 35, all vcc look ok.
The video from the tuner is ok but sometimes when the menu is display
you can see the video signal true it (flash).
I have replace the uP but no change.

Any help is welcome.