2Nd/3Rd Local Level Adjustment; If Transformer Adjustment; Mcf Adjustment; If Trap Adjustment - Yaesu FT-950 Technical Supplement

2nd/3rd Local Level Adjustment

Connect the RF millivoltmeter to TP1063 on the
MAIN Unit.
Adjust T1034 on the MAIN Unit for maximum
deflection on the RF millivoltmeter (more than
+8 dBm).
Connect the RF millivoltmeter to TP1055 on the
MAIN Unit.
Adjust T1028 on the MAIN Unit for maximum
deflection on the RF millivoltmeter (more than 0
dBm).

IF Transformer Adjustment

Set the VFO-A frequency to 14.200 MHz in the
CW mode.
Set the following controls as indicated:
[ANT 1-2] button: ANT 1
[IPO] button: AMP1
[ATT] button: OFF
[µ-TUNE] button: THRU
[R.FLT] button: 6 kHz
[AGC] button: AUTO
[RF GAIN] knob: Fully clockwise
Connect the AF millivoltmeter and 4 Ohm
dummy load to the EXT SP jack.
Connect the RF Signal Generator to the "ANT 1"
jack, then set the output level to 0 dBµ at the
14.200 MHz.
Adjust T1025, T1032, T1037, T1030, T1027, and
T1022 on the MAIN Unit in succession several
times for maximum deflection on the AF
millivoltmeter.
Note: 1) If the S-meter deflects while adjusting, re-
duce the RF Signal Generator output so that the S-
meter does not deflect.
2) There are two peak points in the T1025 and T1032
adjustments. Adjust T1025 and T1032 so the cores
are in the upper part of the coil.
FT-950 Technical Supplement

MCF Adjustment (1)

Set the VFO-A frequency to 14.200 MHz in the
CW mode.
Set the following controls as indicated:
[ANT 1-2] button: ANT 1
[IPO] button: AMP1
[ATT] button: OFF
[µ-TUNE] button: THRU
[R.FLT] button: 3 kHz
[AGC] button: AUTO
[RF GAIN] knob: Fully clockwise
Connect the AF millivoltmeter and 4 Ohm
dummy load to the EXT SP jack.
Connect the RF Signal Generator to the "ANT 1"
jack, then set the output level to 0 dBµ at the
14.200 MHz.
Adjust T1026 and T1033 on the MAIN Unit in
succession several times for maximum deflection
on the AF millivoltmeter.
Note: 1) If the S-meter deflects while adjusting, re-
duce the RF Signal Generator output so that the S-
meter does not deflect.
2) There are two peak points in the T1026 and T1033
adjustments. Adjust T1026 and T1033 so the cores
are in the upper part of the coil.

IF Trap Adjustment

Set the VFO-A frequency to 50.000 MHz in the
CW mode.
Set the following controls as indicated:
[ANT 1-2] button: ANT 1
[IPO] button: AMP1
[ATT] button: OFF
[µ-TUNE] button: THRU
[R.FLT] button: AUTO
[AGC] button: AUTO
[RF GAIN] knob: Fully clockwise
Connect the AF millivoltmeter and 4 Ohm
dummy load to the EXT SP jack.
Connect the RF Signal Generator to the "ANT 1"
jack, then set the output level to +60 ~ +90 dBµ at
the 69.450 MHz.
Adjust T1011 on the MAIN Unit for minimum
deflection on the AF millivoltmeter.
Note: If the S-meter deflects while adjusting, reduce
the RF Signal Generator output so that the S-meter
does not deflect.
Alignment
ALIGNMENT-5