Monitor with fried resistors
 

I have a Northgate Monitor that has died. The Model number is CM777N-G1
the P/N:W02CM777WD10NDPC and COD: NGD-777. R533 and R534 are roasted so
the first thing I would like to know is what values these used to be and
second, what cause them to fry. Any help, schematics, or friendly advice
would be appreciated.

Sincerely,

Kevin Leggett