Yaesu FTdx5000 Series, Техническое дополнение

Страница: 23 / 282

ALIGNMENT-7
Alignment
FT
DX
5000 Series Technical Supplement
MCF Adjustment
Set the following controls as indicated:
[IPO] button: AMP2
[ATT] button: OFF
[FLT] button: THRU
[R.FLT] button: AUTO
[AGC] button: AUTO
[RF GAIN] knob: Fully clockwise
Set the Main Band (VFO-A) frequency to 28.000
MHz in the FM-W mode.
Connect the AC millivoltmeter, SINAD meter,
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 28.000
MHz.
Set the Roofing filter bandwidth to “15 kHz” by
pressing the [R.FLT] button.
Adjust T3031,T3026, T3021 and T3018 on the RX-
1 Unit in succession several times for maximum
deflection on the SINAD meter.
If the Main S-meter deflects while adjusting, re-
duce the RF Signal Generator output so that the
Main S-meter does not deflect.
Set the Main Band (VFO-A) frequency to 28.000
MHz in the AM mode, and set the IPO to “AMP2”
by pressing the [IPO] button.
Set the Roofing filter bandwidth to “6 kHz” by
pressing the [R.FLT] button, and set the IPO to
“AMP2” by pressing the [IPO] button.
Set the RF Signal Generator output to +36 dBµ
(AM: 1kHz, 30%) at 28.000 MHz.
Adjust T3032 and T3027 on the RX-1 Unit in suc-
cession several times for maximum deflection on
the AF millivoltmeter.
If the Main S-meter deflects while adjusting, re-
duce the RF Signal Generator output so that the
Main S-meter does not deflect.
RX-1 U
NIT
(
R
ECEIVER
S
ECTION
)
A
LIGNMENT
P
OINTS
TP3038
T3020
T3026
T3031 T3032
T3027
T3018
TP3020
TP3023
T3021 T3025