Above:
Blue: two 27ohm resistors to lift to disconnect power to the Phono stage
Red: 47uF/35V Elna Silmic capacitors inserted into the preamp feedback loop
Yellow: 47uF/35V Elna Silmic capacitors inserted into the poweramp feedback loop

Below:
The additional capacitor connections. The voltages are indicative ONLY of being the main PSU power rails. Please ensure you have worked out what to measure and how to proceed before attempting this modification....