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ALIGNMENT INSTRUCTIONS (RADIO)
|
,
oat
a
RADIO
DIAL
INDICATOR
|
T
SWEEP
GENERATOR
A
T
REMAR
SEP
SETTING
(VTVM
or SCOPE)
DJUS
nis
i
:
CONNECTION
_
| FREQUENCY
Connect to EXT.
FM antenna terminal
FM-RF ALIGNMENT
S9OMHz
Output meter across
| L104 (FM OSC Coil)
,
Ee oe Dummy
30% Mod.
ree tae
speaker jack (L).
L101 (FM ANT Coil)
ae
maximum
with 400Hz
(Imp. 89)
L102 (FM DET Coil)
Ree
Common
to chassis.
(Refer to Fig. 11.)
Connect to EXT.
FM antenna terminal
through Dummy
antenna.
Common
to chassis.
(Refer to Fig. 11.)
* As three output readings will be present, adjustments must be made at center frequency.
* To correct drift at the FM dial scale (87.5 or 108MHz), adjust coi! L104 and trimmer CT103 each other.
Adjust for maximum
output.
Repeat steps (1) and
(2).
CT103 (FM OSC Trimmer)
CT101
(FM ANT
Trimmer)
CT102 (FM DET Trimmer)
106MHz
30% Mod.
with 400Hz
Output meter across
speaker jack (L).
(Imp. 8Q)
1O6MHz
(113.7mm)
Notes:
1. Stereo Modulator.......
Connect Stereo Modulator to EXT. Mod. terminai of signa! generator
2. Signal Generator
.......
Modulation Rate of 19kHz
Pilot Signal...
....-.. *.
10%
OUIBUELSVE!
5 Sas
on bh es
ee
OK bi We
I
ee. A
30dB
PRCGUEAOYW eS up Gxtcanc Em
Boe
a
EE PS
Se
ee eee
Approx. 98MHz
Oe
UUQGr - tack
Ga
tte as
Approx.
98MHz
.
VOI
CONOR,
2 ses
Gch
ewe sh
Se Se
hee
Audible level of speaker sound
Treble Control
.........
A I S
ote
went
ahs eS
Center
Bass CORUM!
muca Ss Sn
Gea ea
ek
WB ee
ee
ee Bow, ee
MONitep
Band Selector
..........-2.-2.2.55822056
o r dt
FM
STEREO
Balance CONOl.,
mies
Bese ae Sees
ee & a s pad.
a. G2
.
|
19kHz AMP.
ALIGNMENT
EQUIPMENT
CONNECTION
|
ADJUST
:
REMARKS
SIGNAL GENERATOR
OSCILLOSCOPE
|
|
Connect to EXT. FM antenna
Connect vert. Amp. of scope to
ze
,
terminal through dummy antenna.
| point TP4.
|
T7301 (19kHz Coil)
ois
es te
ll oscilloscope
(Refer to Fig. 11.)
Common
to chassis.
P
;
SEPARATION
ALIGNMENT
|
Notes:
1. Signal Generator
.......
Modulation Rate of 19kHz Pilot Signal
..........
10%
Modulation Rate of Right and Left Signal
........
27%
OUIDUE LOVel ris2- ac
Se
eae
See
Ne
ae
ee
60dB
2. Tuner (Balance Control).
. .
Adjust balance control so that output level from both channels becomes equal.
EQUIPMENT CONNECTION
ADJUST
.
REMARKS
SIGNAL GENERATOR
| —————_|_
OSCILLOSCOPE
Connect to EXT. FM
Connect across
Adjust T302 for minimum indication
antenna terminal through
speaker jack.
Connect to
1302
(MPX Coil)
on VTVM from the left side output
dummy antenna.
(Left side)
terminals of VT VM
when the right side of stereo
(Refer to Fig. 11)
(Imp. 82)
modulator is modulated.
Connect to EXT. FM
Adjust VR301 for minimum indica-
antenna terminal through
tion on VTVM from the left side
dummy antenna.
(Left side)
output when the right side of stereo
(Refer to Fig. 11.)
(Imp. 8Q)
modulator is modulated.
* Before separation alignment. disconnect lead between TP4 and Oscilloscope.
STEREO
EYE
LEVEL
CHECK
AND ALIGNMENT
-)
Connect across
speaker jack.
Connect to
terminals of VTVM
VR301 (Separation Contro!})
Connect toEXT. FM
Connect across
|
Stereo eye should light up when
antenna terminal through
"speaker jack.
Connect to
V R302
about 17dB is applied from signal.
dummy antenna.
|
(Left side)
terminals of
VT VM
(Stereo Eye Level Adjust}
generator.
!f not, adjust VR302 to
(Refer to Fig. 11)
|
(Imp. 82)
light up.
|
POWER AMP. ALIGNMENT
1. VTVM, RC OSCILLATOR
2.
Tuner
...
VolumeControl
...
Maximum
7
Balance Control
...
Center
PHONO
GAIN
ALIGNMENT
Connect to PU pin plug (left)
Connect across speaker jack.
VR701
|
Adjust VR701
so that left indication on
INPUT LEVEL... 10m¥V
(Imp. 8Q)
(Gain Control)
VTVM becomes equal to right indication. |
|
ICO ALIGNMENT
|
|
7
|
|
fo
Connect to TP12 and TP14
VR702 (R Channel}
Make adjustments so that the indication
vonins Conte: ere laa
VR703 (L Channel)
on VTVM
(DC) becomes 16mV+2mV.
'6] MODEL SG-2050L
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