• TUNER ADJUSTMENTS
•
Measuring Instruments
FM signal generator (FM SG)
Stereo signal generator (SSG)
AM signal generator (AM SG)
Distortion meter (DIST. M)
AC voltmeter (ACVM)
DC voltmeter (DCVM)
Oscilloscope
Low pass filter (YLF-15, fc=15kHz)
Oscillator
• Test point
• Dummy antenna
FM dummy antenna
FMSG
(500)
r------------------~
,
,
E1!
W~
~~~:
E2
,
,
1_-
.:
E2 (dB)
=
E1 (dB) -6 (dB)
FM dummy antenna
r------------------~
RX-V990
RECEIVER
(750)
AMSG
(500)
,
,
E1
'
'
E2
'MOO
t
RECEIVER
(750)
~
(750)
,
,
I.
.'
E2 (dB)
=
E1 (dB)
AM dummy antenna
r------------------·
,
'
:
10KO:
a
o
It)
a
~ ~
I
I
Q.
0
II
~ GND
MONAURAL
DISTORTION
ADJ. (ANTENNA)
/
DISCRIMINATOR
BALANCE ADJ. (FRONT)
I
AM SENSITIVITY
ADJ.
SIGNAL METER ADJ.
rr=tu····---o·~
~--
.
PK1
o
FRONT END
SEPARATION
ADJ.
,
,
,
1
------------_:
(Viewed from the Bottom)
1FT
,
'----"0
o
it-:
PK1
FRONT END
o
o
10
Содержание RX-V990
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Страница 61: ...1 A B I c RX V990 SCHEMATIC DIAGRAM MAIN I I I 2 3 I I I I l I MAIN L I co C 0 4 I l I 5 I I I l ...
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