HPS-2971
Mode 2:
a) Select the register 99 (VSD).
b) Press VOLØ or ×VOL to select and adjust the screen control localized on
the FBT, until the horizontal line be slightly visible on the screen center.
4.6 AGC adjustment
Mode 1:
ü Apply a PHILIPS pattern with 60dBµV of intensity and adjust the delay
until obtain 3.5V in AGC pin of tuner.