Voltmeter Adjustment; Atas Controller Adjustment - Yaesu FT-450/D Technical Supplement

Voltmeter Adjustment

 Press and hold in the [ATT/IPO], [NB], and [AGC]
buttons, while turning the radio on, to enter the
alignment mode.
 Adjust the DC Power Supply voltage is exactly
13.8 V.
 Rotate the [DSP/SEL] knob to select the align-
ment parameter "VM-ADJ".
 Press the [STO] button.
 Press and hold in the [F] button for 2 seconds to
save the new setting and exit from the alignment
mode.
FT-450 Series Technical Supplement

ATAS Controller Adjustment

 Connect the Digital DC voltmeter (high-Z) to the
"ANT" jack.
 Press and hold in the [ATT/IPO], [NB], and [AGC]
buttons, while turning the radio on, to enter the
alignment mode.
 Rotate the [DSP/SEL] knob to select the align-
ment parameter "ATAS DN".
 Press the [STO] button, then rotate the [MAIN
DIAL] knob for 8.0 V on the DC Voltmeter.
 Rotate the [DSP/SEL] knob to select the align-
ment parameter "ATAS BK".
 Press the [STO] button, then rotate the [MAIN
DIAL] knob for 9.5 V on the DC Voltmeter.
 Rotate the [DSP/SEL] knob to select the align-
ment parameter "ATAS UP".
 Press the [STO] button, confirm that the DC Volt-
meter reading is more than 10.5 V.
 Press and hold in the [F] button for 2 seconds to
save the new settings and exit from the alignment
mode.
Alignment
ALIGNMENT-9