Hi all,   I have a French SCART A7800 whereby the Pokey Audio is so quiet... No issue with Ballblazer, you can just turn the telly up! but with Commando where both audio chips are used it makes it impossible to hear the music... or be deafened by the Soud Effects.   I read here ....  .... that R5 needs to be changed from a 6.8k to 18k resistor to address this and balance the audio signals. However as the labels on the PCB are underneath the components I am unable to loc