Audio problem on luxor tv
 

Hello, i have weird problem in my luxor 3384 if i connect game console for it with composite cable via scart adapter the audio works fine, if i connect with 'retro gaming cables' rgb cable then audio dosnt work. If i use rgb cable to any other tv it works fine but luxor is silent. With same console composite cable audio works fine. How is it even possible? Electronics are sometimes so mysterious. Any ideas?

RGB uses five cables, red, green, and blue for video, and red and white for audio. I know you said using RGB works fine on another set, but not the Luxor. Have you tried all the audio input jacks on the Luxor ? I ask this because I've run into issues with some sets that the audio jacks I assumed were the correct ones for the RGB weren't.

There is only scart and rf inputs. I did get it working 2 times but now its mute again. I can see 1 bulged capacitor.. Also the front button inputs are not working and they connect to same board with faulty looking capacitor. Maybe i should just recap it and try if it fixes it.

Bulging caps? perhaps audio are out due to PSU out of whack

I replaced the caps and its doing the same thing. The sound works with composite and with rgb some times (it seems to work at first when cool but if i reset console it will go silent and work only when cooled again). I measured the voltage from volume control line and its nearly 5v when in composite or when it works on rgb but when it quits working it drops to 0,8volts even when the wire for volume control is removed. Chassis is PC08X8.