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ADJUSTMENT
AM
ADJUSTMENT
Adjusting
ve | See
pf
Sa
Repeat adjustments.
Connections
Output
Input
|
V.T.V.M.
AM Detector
9-21300
AN
AM IF
9-21200
455 KHz
$6. frequency | feng da
455kHz
Near max. capa-
Connect oscilloscope
to AM Output
(PIN NO. 7)
Connect sweep gener-
ator to VC5.
AM ANT COIL
600kHz
9-210500
Connect standard loop
(400Hz, 30%
600kHz
AM OSC COIL
antenna to output ter- | Connect V.T.V.M. to | modulation)
9-20740
Output
Terminal
minals of SG.
Place receiver 2 feet
from loop antenna.
1400kHz
(400Hz, 30%
modulation)
1400kHz
PREPARE
1. Variable capacitor completely closed.
4. Selector switch to "AM".
2. Set the dial pointer to very left line dial scale.
5. Use a screwdriver with plastic grip for all adjustments.
FM ADJUSTMENT
Adjusting
se | Sie [ae
caine
\F
10.7MHz
Range
Ratio Det.
90MHz
RF
106MHz
cs
Repeat adjustments.
V.T.V.M.
Front End
IF Position
Position of
tuning dial
Near max. capa-
city of VC. at
position with no
unrequired signal.
Connect oscilloscope
to TP.2
Connect sweep gener-
ator to test point TP1
through 0.01uF.
Connect oscilloscope
to IF P.C.B. PIN NO.
8 or 10
FM ANT Coil (LA)
FM OSC Coil (LO)
RF Coil (LR1)
RF Coil (LR2)
TCO
TCR.1, TCR.2
TCA
90MHz
(400Hz, 30%
modulation)
Connect V.T.V.M. to
output terminal
Connect FM SG. to
FM ANT. terminals.
106MHz
(400Hz, 30%
modulation)
PREPARE
1. Variable capacitor completely closed.
4. Selector switch to "FM"
2. Set the dial pointer to very left line of dial scale.
5. Use ascrewdriver with plastic grip for all adjustments.
FM MPX
ADJUSTMENT
V.T.V.M.
Orcilloscope
(3) Cross talk VR1 | min,
Connections
Position of
Connect V.T.V.M. to test
point TP.3
19kHz
9-20210 (Black)
38kHz
9-20220 (White)
Connect FM stereo SG to FM ANT
terminals. 19kHz signal ON. Main
channel, sub channel signal ON.
Add 1000Hz signal from L Ch.
Near max. capa-
city of VC. at
position with no
Connect V.T.V.M. to R
output terminal.
channel, sub channel signal ON.
output terminal.
Add 1000Hz signal from R Ch.
PREPARE
1. Variable capacitor completely closed.
3. Function switch to "STEREO AFC".
2. Connect FM stereo SG. and V.T.V.M.
4. Use a screwdriver with plastic grip for all adjustments.
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