Gentlemen: thank you for your replies; appreciated.
Attached is an extract from the manual that explains the ccts. operation.
I might find the time today to have a further look and think about this. It is quite clear that he effective value of C14 / C15 is critical to correct cct. operation, but I'm sure I have either checked their values on a bridge or have replaced them. However another thought has just crossed my mind. I know that the 10 kHz divider isn't working. Perhaps the area where the 100 kHz and the 10 kHz dividers 'join' is where the culprit lies: there is no buffering / isolation between them . . . . .
And for sake of completeness (if nothing else) I will try to take a photo or two of the board in question - a picture says a thousand words, etc. . . . .
Al.
Attached is an extract from the manual that explains the ccts. operation.
I might find the time today to have a further look and think about this. It is quite clear that he effective value of C14 / C15 is critical to correct cct. operation, but I'm sure I have either checked their values on a bridge or have replaced them. However another thought has just crossed my mind. I know that the 10 kHz divider isn't working. Perhaps the area where the 100 kHz and the 10 kHz dividers 'join' is where the culprit lies: there is no buffering / isolation between them . . . . .
And for sake of completeness (if nothing else) I will try to take a photo or two of the board in question - a picture says a thousand words, etc. . . . .
Al.
