If Unit; Receiver Section; 2Nd & 3Rd Local Amplifiers; Rx If Interstage Transformer (I) (Coarse Alignment) - Yaesu Mark-V FT-1000MP Field Technical Supplement

Alignment

IF Unit

Refer to the drawing at the page bottom for IF Unit component
locations and alignment points.
2nd & 3rd Local Amplifiers
r Connect the RF millivoltmeter to TP2003, and adjust T2010
for maximum indication on the RF millivoltmeter (at least 450
mV ).
rms
r Next, connect the RF millivoltmeter to TP2005, and confirm
at least 100 mVrms.

Rx IF Interstage Transformer (I) (Coarse Alignment)

r Connect the RF signal generator to J2003, and inject a +100
dBu signal at 70.455 MHz. Connect the AC voltmeter across
and an 4 W dummy load to the EXT SP jack on the rear panel.
r Adjust T2003 ~ T2009, T2011, and T2012 in succession sev-
eral times for peak indication on the AC voltmeter.
RX IF Transformer
T2002
Noise Blanker
T2001
Noise Blanker
T2007
RX IF Transformer
T2006
RX IF Transformer
T2005
RX IF Transformer
T2015
TX IF Transformer
T2010
2nd & 3rd Local Amplifier
T2018
TX IF Transformer
TP2003
2nd & 3rd Local Amplifier:
Connect RF Millivoltmeter
(> 500 mVrms)
VR2006
TX 2nd Mixer
T2017
TX IF Transformer
3-6
T2004 TP2001
Noise Blanker:
Connect DC Voltmeter (minimum)
T2014 T2008
TX IF Transformer RX IF Transformer
J2008
TX 2nd Mixer: Connect Spectrum Analyzer (minimize 2nd local spurious)
IF Unit Test & Alignment Points

Receiver Section

RF Interstage Transformers (Coarse Alignment)
r Preset VR1001 and VR1002 to their 12-o'clock positions, and
select either USB or LSB mode. Adjust T1005 ~ T1009 on
the RF Unit in succession several times for peak noise from the
speaker.
S-Meter (Coarse Alignment)
r Preset VR2003 fully counter-clockwise, and adjust VR2003
so that all S-meter segments are just turned off. Preset the RF
GAIN control fully counter-clockwise, and adjust VR2002 for
S9+60 dB on the S-meter.
1st Mixer Balance
r Tune the transceiver to 1.800 MHz, then adjust VR1001 and
VR1002 for minimum noise from the speaker.
IF Interstage Transformers (II)
r Connect the RF signal generator to the antenna jack, and inject
a +80 dBµ signal at 14.2000 MHz.
r Select the USB mode, and tune the transceiver to 14.20220
MHz (so that a 2200 Hz tone is heard); adjust T1005 ~ T1009,
T2003 ~ T2009, T2011, and T2012 in succession several
times for peak S-meter indication (adjust the injection level as
necessary to keep the meter around mid scale).
VR2001 L2026
FM Squelch Threshold FM Carrier Frequency
T2013
TX IF Transformer
VR2002
S-Meter Full Scale
VR2003
S-Meter
VR2008
CTCSS Tone Deviation
VR2009
FM Deviation
VR2007
COMP Meter Calibration
T2012
RX IF Transformer
T2011
RX IF Transformer
VR2005
IF Notch
L2004
IF Notch
T2009
RX IF Transformer
T2003
RX IF Transformer
T2019
TX IF Transformer