Yaesu FT-840 Service Manual page 17

voltmeter
TP2013
PLL Main Loop VCO:
DC
millivoltmeter
02048pi n 13
PLL Main Loop VCO
RF (> 60 mV)
VR2001
&
Side-Tone Beep Level
FT-840 Technical Supplement
Ground this post
while aligning the
TP2004
Local Unit
TP2001
Local BPF Check:
.J'2011 3
.J'2015
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.P2012 ..f'2014 ..!'2016
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T2004 T2005 TP2015
&
Carrier Level Adjust Freq. check Carrier Level Adjust
RF millivoltmeter(> 320 mV)
Local Unit Alignment Diagram
millivoltmeter
TP2005 TP2014
Reference Oscillator Check:
1st Local Output Level
RF
RF
millivoltmeter
J2021
pin
02044 2
& 2
Freq. check: DDS check:
RF
millivoltmeter(> 65 mV)
/
Local
T2002 BPF
I
JP2001
. Reference Oscillator check:
frequency counter (5.242880 MHz± 3 Hz)
-101-
02036 pi n 2
DDS 1 check:
RF millivoltmeter (>110 mV)
TC2701
Reference Oscillator
TP2003
Transmitter Carrier Point
to chassis ground
3-7