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ALIGNMENT INSTRUCTIONS
=
RADIO ALIGNMENT-2
SIGNAL GENERATOR or
SWEEP GENERATOR
RADIO DIAL
INDICATOR
ADsusT
REMARKS
SETTING
CONNECTION
[Frequency
FMIF AND DETECTOR ALIGNMENT
STEP
(VTVM or SCOPE)
Adjust 7101 for
maximum amptitude
and symmetrica'
4101 (FM 1st (FT)
curve.
;
7204 (FM Disc. 1FT)
® Refer to Note.
High side through 1pF
10.7 MHz | Point of non-
COnsACE NEE MITE:
between point TP1 and
(400 kHz | interference fon/|
'NPUt oLaore TPS
:
:
:
TP4 (earth).
Swe.)
about 98 Miz)
between point
Adjust for maximum
and TP4 learth).
amplitude and proper
linearity between about
£100 kHz markers.
T205 (FM Disc. IFT)
Note:
Sefore aligning step 1, turn the cores of 1205 fully counterclockwise.
FM-RF ALIGNMENT
Connect to EXT. FM
aT
antenna terminal through{
9
H tbr
90 Mie
L102 (FM ANT Coll) | Adjust for maximum
Oummy antenna.
soe
M o n ,
(23.6 mm)
L101 (FM OSC Col) | output.
Common to chassis.
with 400 Hz
Output meter across
Yo SSG
37.5 7,
persed ele vee
(ienp.
a
@art
751
Tat
Receiver
106 MHz
cT101
Adjust for maximum
30% Mod
106 MHz
(FM ANT Trimmer}
oulput.
;
(147.5 mm)
C1102
Repeat steps (1) and
(2).
DUMMY ANTENNA
wane
(FM OSC Trimmer)
—+-
Note:
As three output readings will be present, adjustments must be made at center frequency.
=
FM STEREO ALIGNMENT
FREE RUN ALIGNMENT
Control Positions:
. Volume Controt
. .. .
Audible level of speaker sound
. Frebie Control
I
. Bass Controt
. Band Setector
. Balance Control
....
Center
EQUIPMENT CONNECTION
f
ADJUST
REMARKS
Connect frequency counter to TP6 and TP4 {earth)
VA30t
Adjust VA301 for 19 kHz +100 Hz on frequency
at no signal condition.
counter reading.
SEPARATION ALIGNMENT
Control Positions:
,
1. Stereo Modulator:
Connect Stereo Modulator to EXT Mod. terminat of signal generator.
2. Signal Generator:
Modulation Rate of 19 kHz Pilot Signal
0%
Modulation Rate of Right and Left Signal
Output Level
3. Tuner (Balance Control)
Adjust balance control so that output tevel from both channets becomes equal.
EQUIPMENT CONNECTION
SIGNAL GENERATOR
VTVM
OSCILLOSCOPE
Connect to EXT. FM an-
ADJUST
REMARKS
OUMMY
ANTENNA
Note:
When aligning separation, disconnect frequency counter.
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