Syau,
The 2 resistors on the A11 are 1.5 Ohm wire wound resistors.
Before you do too much repair you need to unplug the A12 RVFR 9 pin jack and measure the following.
Measure the impedance between pins 4 and 5 and pins 3 and 4.
You should have 50 Ohms on each.
Then measure from those 4 pins to the threaded stud sticking out the end of A12.
You should not have any continuity!
If you do the lamp oven winding has shorted out.
Pretty much a show stopper but can with LOTS of effort and patience might be repaired.
Also what is the units serial number and what series number is your A7 module.
Cheers,
Corby