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ALIGNMENT
INSTRUCTIONS (RADIO)-1
Frequency & Distance on Dial Scale
To accurately align to the proper frequencies on the dial
scale, refer to Table at right and mark the edge of the
dial scale accordingly,
using the 'Start Point" mark on
the dial scale as a reference point.
. Make certain that speaker system is connected to the tuner when aligning.
SIGNAL GENERATOR or
,
RADIO DIAL
INDICATOR
STEP
SWEEP GENERATOR
SETTING
(VTVM or SCOPE)
CONNECTION
FREQUENCY
Note:
1. Volume Control. ++ ++-+++++.
Maximum
(AM-IF & RF, FM-RF); Minimum (FM-IF)
2. Tone Control--+-++-+-+-eeee-
High
—
3. Balance Control...........
Center
4. Band Selector.............
AM, FM AUTO
5. Power Voltage Selector .....
110V
6. Power Switch........... ++ ON
7, Output of signal generator should be no higher than necessary to obtain output reading.
8
osaraae
7
|
550 kHz
17.2 mm (11/16")
-
|
,
1500 kHz
162.
mm(65/8")
EM
90 MHz
23
mm (7/8")
106 MHz _
153.3 mm (6-1/16")
ADJUST
AM-IF
& ALIGNMENT
Fashion loop of several
:
:
:
455 kHz
Point of non.-
Output meter across
turns of wire and radiate
30% Mod, :
interference (on/ | speaker jack (L)
signal into loop of
:
receiver.
with 400 Hz
about 600 kHz)
(Imp. 8Q)
Fashion loop of several
:
:
550 kHz
Output meter across
turns of wire and radiate
30% Mod.
550 kHz
speaker jack (L)}
signal into loop of
:
(17.2mm)
receiver,
with 400 Hz
(Imp. 8Q)
Fashion loop of several
:
;
1500 KHz
Output meter across
turns of wire and radiate
30% Mod
1500 kHz
speaker jack (L)
signal into loop of
(162 mm)
PE caIVEL.
with 400Hz
(Imp. 8)
* Cement antenna bobbin with wax after compieting alignment.
FM-IF & DETECTOR
ALIGNMENT
Common to chassis.
(SWP.)
~ about 98 MHz)
Eon mentornese
:
;
|
:
Connect vert. amp.
_{High side thru. 0.001
10.7 MHz
Point of non.-
mfd to point TP1,
(400 kHz
interference (on/
oe
to'point
Common to chassis.
SWP.)
about 98 MHz)
CormGn te chasse
* Before aligning step 1, turn the core-2 of T204 fully counterclockwise.
FM-RF
ALIGNMENT
Connect to EXT.
FM
-
antenna
terminal through
90 MHz
90 MHz
Output meter across
Dummy antenna.
30% Mod.
*
amin
speaker jack (L).
Common to chassis.
with 400 Hz
(Imp. 8Q)
(Refer to Fig. 9)
|
|
Connect to EXT. FM
;
antenna terminal through
106 MHz
106 MHz
Output meter across
Dummy antenna.
30% Mod.
(153.3mm)
speaker jack (L).
Common to chassis.
with 400 Hz
OK
(imp.8Q)
(Refer to Fig. 9)
|
10.7MHz
SSG
|
3
|
(Imp. 75 Q) |
Oo A
Fig. 8-a
Fig. 8-b
SE-1077
7
*As three output readings will be present, adjustments must be made at center frequency.
7201 (1st 1.F.T.
;
:
202
ee
Adjust for maximum
T203 (3rd |.F.T.)
OUIPHT.
Adjust for maximum
L202 (ANT Coil)
output by sliding coil
201 (OSC Coil)
(L202) along ferrite
.
core,
CT201
Adjust for maximum
(ANT Trimmer)
output.
CT202
—
Repeat steps (2) and
(OSC Trimmer)
(3).
Adjust for maximum
amplitude and
symmetrical curve
(Refer to Fig. 8-a)
Adjust for maximum
amplitude and proper
linearity between
+100 kHz markers.
(Refer to Fig. 8-b)
T7101
(FM 1st 1.F.T.)
T204, Core 1
(FM Disc. 1.F.T.)
1204, Core 2
(FM Disc. 1.F.T.)
Ef ico rican
Adjust for maximum
|
L102 (FM DET Coil) | OUtPUt-
CTIO
|
|
(FM OSC Trimmer)
Adjust for maximum
CT101
output,
|
(FM ANT Trimmer)
Repeat steps (1) and
CT102
(2).
(FM DET Trimmer)
Receiver
Fig. 9 DUMMY ANTENNA
ALIGNMENT INSTRUCTIONS (RADIO)-2
= FM STEREO ALIGNMENT
Notes:
|
:
.
1. Stereo Modulator:
Connect Stereo Modulator to EXT. Mod. terminal of signal generator
2. Signal Generator : Modulation Rate of 19 KHz Pilot Signal
..........
10%
OUTPUT LEV Gh ste is a chk Fae
OE
S ere
oe ee
ee
30 dB
FIGQUCACY
- s S00 a8
i We ee
aw, oe
a
ee
eee
se ~ Approx. 98 MHz
3. Tuner
: Volume Control. ....... e e e
ee
eee
ee
Audible level of speaker sound
FORC COMLON <a: <a: ix Sas Bost ay Sa
ee
Gh
Ss a
Be
Low
Band: SeClGCtOr: 4 wiwce:
e wee
Bk
rahe
we E: & Ewe
ees
FM AUTO
Balance: CONTLON
M S See
Se
Re
ORS
SS
BS: See
SS
Center
|
19 kHz AMP. ALIGNMENT
EQUIPMENT
CONNECTION
|
'3
3
,
ADJUST
REMARKS
SIGNAL
GENERATOR
©
OSCILLOSCOPE
Connect to EXT. FM antenna
Connect vert. Amp. of scope to
terminal through dummy
point TP4.
antenna.
(Refer to Fig. 9.)
- Common to chassis.
Adjust for maximum oscillo-
SEPARATION ALIGNMENT
|
Notes:
1. Signal Generator :
Modulation Rate of 19 kHz Pilot Signal
.--.......-
3. Tone Control
---+++-++++--
Modulation Rate of Right and Left Signal ........-
|
QUTOUT REVO. <i Se 5. AC hei a et Vow ee ae oe e e
er ee ee
2. Tuner (Balance Control): Adjust balance control so that output level from both channels becomes equal.
|
|
EQUIPMENT CONNECTION
ae
SIGNAL GENERATOR
VTVM
OSCILLOSCOPE
etc
Adjust T301 and VR301
for
minimum indication on VTVM
from the left side output when
the right side of stereo modu-
lator is modulated.
|
Adjust T301 and VR301
in the
same way for the right side.
Adjust for best balance be-
tween ''L to R" and "'R to L"
separation. -
Connect to EXT. FM an-
tenna terminal through
dummy antenna.
(Refer to Fig. 9.)
Connect across speaker
jack,
(Left side)
(Imp. 82)
T302 (MPX Coil)
VR301 (Separation
Control)
Connect vertical amp.
input of scope to ter-
minals of VTVM.
* Before separation alignment disconnect lead between TP4 and Oscilloscope.
Pas
STEREO EYE LEVEL CHECK AND ALIGNMENT
Connect to EXT. FM an- | Connect across speaker
VR302
Stereo eye should light up
tenna terminal through
jack.
Connect to termianls. of
when about 23 dB is applied
dummy antenna.
(Left side)
VTVM.
abe Eye Level
from signal generator. If not,
(Refer to Fig.9.)
(Imp. 82)
J
adjust VR302 to light up.
Separation
Control
(FM ANT-(AM
L101
|
Tri
OSC Coil)(AM 1st IFT)
VR301
——
FR an coin Titman OSE, Soman
|Q*
1 TSS
a
@
lo]
TP4m
~=©—VR302
TP2> TPs
T101
(FM
1st IFT)
TP3
Fig. 10 ALIGNMENT
POINTS
I
es de
ste
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