Sony DFR-E3000 Maintenance Manual page 31

Section 2
Electrical Alignment
Notes on RV401, RV402, and RV403 on the IF-752 board
The potentiometers below are mounted on the IF-752 board.
They do not function electrically.
Therefore, no adjustment is required for the potentiometers. Turn them mechanically clockwise as far as
they will go.
IF-752 board (Suffix: -11): 1RV401, 1RV402, and 1RV403.
2-1
DFR-E3000