Technics QUARTZ ST-G460L User manual

CYUARTZ Synthesizer
LW/MW/FM Stereo Tuner
SPECIFICATIONS
(DIN 45 500)
Wi FM TUNER SECTION
87.50 ~ 108.00 MHz
87.525~108.00 MHz (+25 kHz shift)
Frequency range
Sensitivity 1.5 wV (IHF, usable)
S/N 30 dB 1.3 pV (75 Q)
S/N 26 dB 1.2 pV (75 Q)
S/N 20 dB 0.9 uV (75 Q)
IHF 46 dB stereo quieting sensitivity 28 WV/75 OQ
Total harmonic distortion
MONO (normal) 0.05 %
STEREO (normal) 0.1%
S/N
MONO 72 dB (80 dB, IHF)
STEREO 65 dB (73 dB, IHF)
Frequency response AHz~15 kHz, +05 dB>—1.0:0B
Alternate channel selectivity
+400 kHz 65 dB
Capture ratio 1.0 dB
image rejection at 98 MHz 55 dB
IF rejection at 98 MHz 90 dB
Spurious response rejection at 98 MHz 80 dB
AM suppression 55 dB
Stereo separation
1 kHz 50 dB
10 kHz 40 dB
Carrier leak
19 kHz —55 dB (—60 dB, JHF)
38 kHz — 40 dB (— 45 dB, IHF)
Channel balance (250 Hz~ 6,300 Hz) +1.0 dB
Limiting point 0.85 pV
Bandwidth
IF amplifier 180 kHz
1000 kHz
75 Q (unbalanceda)
FM demodulator
Antenna terminals
‘Technics
ORDER NO. AD8905129C8
Service
Manual
ST-G460L
(K)...Black Type
Area
(EB)
M@ AM TUNER SECTION
Frequency range
MW
LW
522 kHz~ 1611 kHz (9-kHz steps)
530 kHz~ 1620 kHz (10-kHz steps)
155 kHz ~ 353 kHz (9-kHz steps)
153 kHz~ 351 kHz (—2-kHz shift)
Sensitivity (S/N 20 dB)
Output voltage
MW 20 uv, 300 WV/m
LW 50 wV
- Selectivity (+9 kHz)
MW (at 999 kHz) 50 dB
LW (at 254 kHz) 50 dB
image rejection
MW (at 999 kHz) 40 dB
LW (at 254 kHz) 40 dB
IF rejection
MW (at 999 kHz) 60 dB
LW (at 254 kHz) 35 dB
Mi GENERAL
0.3 V (0.6V IHF)
Power consumption 9W
Power supply
Dimensions (W x H x D)
Weight
Note:
AC 50 Hz/60 Hz, 240V
430 x 69 x 288 mm
(16-15/16" x 2-23/32” x 11-11/32”)
2.5 kg (5.5 Ib.)
Specifications are subject to change without notice. Weight and
dimensions are approximate.
Matsushita Electric Industrial Co., Ltd.
Central P.O. Box 288, Osaka 530-91, Japan

ST-G460L
CONTENTS
/
Page
Page
ACCESSORIES
2
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2
TERMINAL
GUIDE
OF
IC’S,
TRANSISTORS
AND
CONNECTIONS
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14
LOCATION
OF
CONTROLS
.............
0. cc
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es
3
CIRCUIT
BOARDS
AND
WIRING
CONNECTION
DISASSEMBLY
INSTRUCTIONS
.................,
4,5
DIAGRAM
3
pide
cca
hs
Kara
ees
a
cee
yweadeaeas
15,
16
MEASUREMENTS
AND
ADJUSTMENTS
...........
6~8
FUNCTIONS
OF
IC
TERMINALS....................
17
BLOCK
DIAGRAM
..........
0.00.
cece
cece
ences
9,10
DESCRIPTION
OF
FLPANEL
...............
0.00005
18
SCHEMATIC
DIAGRAM
..............0..
ceca
11~14
REPLACEMENT
PARTS
LIST
................0.
19~22
EXPLODED
VIEW?
iscsi
ico
eeiGsctascdeevaxadpanties
23
m@
ACCESSORIES
@Stereo
connection
cable
(SUP2276)
...............004
1
eScrews
(XTB3+10AFZ)
........
00.
ccc
cece
eee
ee
2
@FM
indoor
antenna
(SSA270M)
.............
cece
ees
1
eAttachment
plug
(SJP9009
for
[EB]
area
only)..........
1
@AM
loop
antenna
(SPB1162T)
............
cee
eee
1
@AC
power
supply
cord
.....
0...
cece
cece
cece
cee
eees
1
@AM
antenna
holders
(SMA233-1
VID
Gay
Soe
seers
oie
xetnan
nee
1
For
[EB]
area
only
(SJA1
93)
(SMA231
M)
ee
a
a
eect Bare
eee
1
For
others
areas
(SFDACO5E03)
@
CONNECTIONS
This
unit
Household
AC
outlet
Stereo
connection
AC
power
supply
cord
Fit
a
suitable
plug
to
an
AC
power
cable
(included)
(included)
supply
cord.
(R)(L) Amplifier (not included)
[Co]
OOOO

ORDER NO. AD8905129C8-A
ST-G460L
Mi MESSUNGEN UND EINSTELL METHODEN
= LW/MW/FM
Einstellungen der Bedienelemente und zu verwendende Gerate.
Tuner
Anmerkung:
¢ MW und UKW MeBsender (MW und UKW Nebsender)
e Stereo-Modulator
e Verzerrungs-Analystator
e Elektronische Wechselstrom-und
Gleichstrom-Voltmeter (EVM)
e Keramischer Kondensator (200 pF)
© Oszilloskop
e Frequenzzahler
e Drosselspule (100yH)
e Widerstand (100 KQ)
MW-HF-JUSTIERUNG
. Der Testaufbau ist in der Abbildung gezeigft.
. Stellen Sie die Einheit auf “MW” Betrieb.
. Radio und Signalgenerator auf 612kHz einstellen.
. Radio und Signalgenerator auf 1503kHz einstellen.
. £201 (AM-Antennenspule) auf maximale Ausgangsleistung
abgleichen.
. Die Schritte 3~5 wiederholen.
LW-HF-JUSTIERUNG
. Der Testaufbau ist in der Abbildung gezeigt.
. Stellen Sie die Einheit auf “LW” Betrieb.
. Die Radiofrequenzanzeige und den Messender auf
155 kHz einstellen.
. Die Radiofrequenzanzeige und den Messender auf
353kHz einstellen.
. 2201 (LW-Antennenspule) auf maximale Ausgangsleistung
abgleichen.
UKW-MONO-VERZERRUNGS-JUSTIERUNG
. Der Testaufbau ist in der Abbildung gezeigt.
. Stellen Sie die Einheit auf “FM (UKW)” Betrieb.
. Die Radiofrequenzanzeige und den Messender auf
100.10 MHz einstellen.
. Den Kern von T101 so justieren, daB die im Signalzustand
gemessene Spannung OmV (0+ 20 mV) im 300 mV-Bereich
betragt.
. T102 so justieren, daB der Verzerrungsfaktor des linken
Kanals minimal wird.
MPX-SGO-JUSTIERUNG
. Der Testaufbau ist in der Abbildung gezeigt.
. Den UKW-Bertriebsart-Wahlshalter in die ‘‘on/auto”
Position stellen.
. Radio und MeBsender auf 100.10 MHz einstellen.
. VR302 auf 19kHz+30Hz auf der Frequenzzahleranzeige
justieren.
TRENNUNGS-JUSTIERUNG
1. Der Testaufbau ist in der Abbildung gezeigt.
2. Stellen Sie die Einheit auf “FM” Betrieb.
3. Die Radiofrequenzanzeige und den Messender auf
100.10 MHz einstellen.
Fir Z202, L303 und L304, werdeven justiert Ersatzteil geliefert. Dien Kern dieses Teils daher nicht drehen.
Anmerkung:
Der Antenneneingang-Signalpegel muB so niedrig wie
mdglich und frei von automatischer
werstarkungsregelung (AGC) sein.
6. Die Schritte 3~5 wiederholen.
Anmerkung:
Der Antenneneingang-Signalpegel muB so niedrig wie
mdglich und frei von automatischer
werstarkungsregelung (AGC) sein.
. Schritte 4 und 5 einige Male wiederholen.
. Versichern Sie sich, daB die Verzerrungsfaktoren von
Kanai L und Kanal R anndhernd gleich sind und auf ein
Minimum gehalten sind.
Anmerkung:
Fir die Justierung ist ein Schraubendreher aus
Kunststoff zu verwenden.
¢ VERWENDUNG EINES ALTERNATIVSYSTEMS
1. Stereosignal vom MeBsender eingeben oder eine Stereo-
Sendung empfangen.
2. VR302 justieren, bis die Stereo-Anzeige aufleuchtet.
Den Arm von VR302 mit Lack sichern, wie in der
Abbildung gezeigt.
. VR301 so justieren, daB der R-Ausgang minimal ist, wenn
der Stereomodulator im L-Betriebszustand (Linker Kanal
moduliert) ist.

Cd
FRANCAIS
li MEAURAGES ET REGLAGES
i LW/MWIN.F.
Positionnements
des
commandes
et
équipement
utilisé
¢
Générateur
de
signaux
AM
et
FM
(AM
et
FM-
SG)
¢
Bobine
d’amortissement
d’arrét
(100pH)
¢
Modulateur
stéréophonique
e
Résistance
(100kQ)
e
Analyseur
de
distorsion
¢
Condensateur
céramique
(200
pF)
*
Oscilloscope
¢
Voltmétre
électronique
4
C.A.
et
C.C.
(EVM).
¢ Compteur de fréquence
Nota:
Pour
2202,
L303
et
L304,
des
éléments
régiés
sont
fournis.
Aussi,
ne
pas
tourner
les
noyaux
de
ces
piéces.
REGLAGE DE A.M.-H.F.
1.
Le
raccordement
de
l’équipement
d’essai
est
montré
sur
6.
Reépéter
les
étapes
3~5.
Villustration.
2. Régler l'appareil sur le mode “MW”.
3. Régler le cadran radio et le générateur de signaux sur
Nota:
Le
niveau
d’entrée
d’antenne
doit
étre
aussi
bas
que
612kHz.
possible
étant
libéré
de
commande
automatique
de
gain.
4.
Régler
le
cadran
radio
et
le
générateur
de
signaux
sur:
1503
kHz.
5.
Régler
Z201
(bobine
ANT
A.M.)
pour
une
sortie
maximale.
REGLAGE DE RE-LW
.
Le
raccordement
de
|’équipement
d’essai
est
montré
sur
6.
Repeter
les
étapes
3~5.
Villustration.
2. Régier l’appareil sur le mode “LW”.
3.
Régler
le
réglage
de
l’affichage
de
radiofréquence
et
du
générateur de signaux sur 612kHz.
4.
Ajuster
le
réglage
de
l'affichage
de
radiofréquence
et
du
générateur
de
signaux
sur
353kHz.
. Régler Z201 (bobine ANT LW) pour une sortie maximale.
Nota:
Le
niveau
d
entrée
d’antenne
doit
étre
aussi
bas
que
possible
étant
libéré
de
la
commande
automatique
de
gain.
REGLAGE DE DISTORSION MONOPHONIQUE M.F.
1,
Le
raccordement
de
l’équipement
d’essai
est
montré
sur
5.
Ajuster
T102
de
telle
que
le
facteur
de
sistorsion
du
canal
Pillustration.
de
gauche
soit
minimisé.
2.
Régier
l'appareil
sur
le
mode
“FM”.
6.
Répéter
les
étapes
4
et
5
quelques
fois.
3.
Régler
le
réglage
de
l’affichage
de
radiofréquence
et
du
7.
S’assurer
que
les
facteurs
de
distorsion
du
canal
de
générateur
de
signaux
sur
100.10
MHz.
gauche
et
du
canal
droite
soient
sensiblement
les
mémes
4.
Ajuster
le
noyau
de
T101
de
telle
sorte
que
la
tension
et
au
minimum.
mesurée
sur
le
mode
de
signaux
soit
de
OmV
(0+
20
mV)
dans
une
plage
de
300mvV.
Nota:
Le
tournevis
de
réglage
utilisé
devra
étre
fait
en
résines.
REGLAGE
MULTIPLEX
DE
L’OSCILLATEUR
COMMANDE
PAR
VARIATION
DE
TENSION
1.
Le
raccordement
de
I’équipement
d’essai
est
montré
sur
eEN
UTILISANT
UN
SYSTEME
ALTERNATIF
la
figure.
2.
Régler
l’appareil
sur
la
position
“on/auto”.
1.
Applique
un
signal
stéréo
a
partir
du
générateur
ou
3.
Régier
le
cadran
radio
et
le
générateur
de
signaux
sur
recevoir
une
emission
stéréo.
ae
100.10
MHz.
2.
Ajuster
VR302
jusqu’
a
ce
que
l’indicateur
stéréo
4.
Ajuster
VR302
pour
19kHz+30Hz
sur
le
compteur
de
séclaire.
Coller
le
bras
de
VR302
comme
il
montré
sur
la
lecture
de
fréquences.
figure.
REGLAGE
DE
SEPARATION
1.
Le
raccordement
de
!’équipement
d’essai
est
montré
sur
4.
Ajuster
VR301
de
telle
sorte
que
la
sortie
de
droite
soite
illustration.
minimisée
lorsque
le
modulateur
stéréo
est
sur
le
mode
2.
Régler
l’appareil
sur
le
mode
“FM”.
“G’’.
(modulation
de
canal
de
gauche.)
3.
Ajuster
le
réglage
de
l’affichage
de
radioféquence
et
du
générateur de signaux sur 100.10 MHz.
> ee Printed in Japan
F890501950FF/TW/YY

e
mm LOCATION OF CONTROLS
Control section |
8 76) (5) (4
[1] Power “standby Ojon” switch [5] Preset channel buttons (preset channel)
‘sc ; 93
(power
“standby
©/on”)
[6]FM
signal-strength
indication
button
|
[2] Tuning buttons (tuning) (FM-signal)
[3] Preset-tuning buttons (1 —0) FM mode selector (FM-mode)
(39
channel
random
preset
tuning)
Band
selectors
(band
selector)
[4] Memory button (memory)
Display section
A}|B}(C} [D|
[A] Quartz-lock indicator (| ) [E] Memory indicator (M)
FM stereo indicator (stereo) [F] Channel display (channel)
[C] Band indicator (band) [ca] FM mode indicator (FM mode)
[D] Digital frequency display
* The operating procedures and features are similar to those for and of the ST-G450L.

ST-G460L
@
DISASSEMBLY
INSTRUCTIONS
=:
Removal
of
the
cabinet
|
Removal
of
the
front
panel
Procedure
Procedure
1
1—2
2)
1. Remove the 3 screws (@~®).
2. Remove the front panel in the direction of the arrow.
1. Remove the 2 screws (@, @).
2.
Remove
the
power
switch
P.C.B.
in
the
direction
of
the
arrow.
i N
~ Operation PC.B.
/
Connector
2. Remove the tuning P.C.B. in the direction of the arrow.
eRemove
the
9
claws
(@~®).

Removal of the FL Drive P.C.B. Removal of the power supply P.C.B.
1-7
Power Supply PC.B
~
eRemove the 2 claws. . Remove the 7 screws (@~@).
1. Remove the 4 screws (@~@). . Remove the 2 connectors (CN106, CN107).
2. Remove the 2 connectors (CN106, CN107). . Remove the power supply P.C.B. in the direction of the
3. Remove the FL drive P.C.B. in the direction of the arrow. arrow.
Ref. No. Checking of the FL drive P.C.B. and
8 power supply P.C.B.
Procedure @When checking the soldered surfaces of main P.C.B. and
18 replacing the parts, do as show.
1. Remove the 11 screws (Q~@).
2. Pull out the front panel in the direction of the arrow @).
3. Remove the bottom chassis in the direction of the arrow ®).
4. Reinstall the front panel to the FL drive P.C.B.

ST-G460L
Replacement of the Foot.
1.
Remove
the
4
heat
melted
posts
on
the
chassis
with
a
pair
of
Heat
Melted
Posts
nippers or similar tool.
2.
To
replace
the
foot
(RKAO0009)
on
the
chassis,
melt
the
4
posts
with
a
soldering
iron.
Foot
Soldering iron
Chassis
Pe
Foot
(RKAQOOY)
m@
MEASUREMENTS
AND
ADJUSTMENTS
LW/MW/FM
Control positions and equipment used
@
AM
and
FM
signal!
generator(AM
and
FM-SG)
@
Choke
coil
(100yH)
@
Stereo
modulator
@
Resistor(100kQ)
@
Distortion
analyser
@
Ceramic
capacitor(200pF)
@
Oscilloscope
@
AC
and
DC
electronic
voltmeter(EVM)
@ Frequency counter.
Note:
For
2202,
L303
and
L304,
they
are
supplied
as
adjusted
parts.
So,
do
not
turn
the
cores
of
the
parts.
MW-RF
ADJUSTMENT
AM
SIGNAL
GENERATOR
CONDITION
Modulation
1.
Test
equipment
connection
is
shown
in
figure.
2.Set
the
unit
to
“MW”
mode.
3.
Set
the
radio
frequency
display
and
signal
generator
to
612kHz.
4.Set
the
radio
frequency
display
and
signal
generator
to
1503
kHz.
5.
Adjust
Z201
(MW ANT
coil)
for
maximum
output.
6.
Repeat
steps
3~5.
AC
EVM
Oscilloscope
Note:
Antenna
input
level
must
be
as
low
as
possible
being
free
from
AGC.
LW-RF
ADJUSTMENT
AM
SIGNAL
GENERATOR
CONDITION
Modulation
1.Test equipment connection is shown in figure.
2.Set the unit to “LW” mode.
3.Set
the
radio
frequency
display
and
signal
generator
to
155kHz.
4.Set
the
radio
frequency
display
and
signal
generator
to
353kHz.
9.Adjust Z201 (LW ANT coil) for maximum output.
6.Repeat steps 3~5.
Note:
Antenna
input
level
must
be
as
low
as
possible
being
free
from
AGC.

FM MONO DISTORTION ADJUSTMENT
1.Test equipment connection is shown in figure.
2.Set the unit to “FM” mode.
3.Set the radio frequency display and signal generator to
100.10MHz.
4.Adjust the core of T101 so that the voltage measured in
signal mode is OmV (0+20 mV) in 300 mV range.
5.Adjust T7102 so that the distortion factor of L-CH is
minimized.
6.Repeat steps 4 and 5.
7.Make sure that the distortion factors of L-CH and R-CH
are nearly the same and minimum.
Note: The adjusting screwdriver used should be made of
resin.
MPX VCO ADJUSTMENT
1.Test equipment connection is shown in figure.
2.Set the unit to “on/auto” position.
3. Set the radio frequency display and signal genarator to
100.10 MHz.
4.Adjust VR302 for 19kHz+30Hz on frequency counter
reading.
°USING ALTERNATE SYSTEM
1.Apply stereo signal from generator or receive the stereo
broadcast. oe
2.Adjust VR302 until stereo indicator lights up. Fix the arm
of VR302 as shown in figure.
SEPARATION ADJUSTMENT
1.Test equipment connection is shown in figure.
2.Set the unit to “FM” mode.
3.Set the radio frequency display and signal generator to
100.10MHz.
4.Adjust VR301 so that the R-CH output is minimized when
stereo modulator is in “L”(L-CH modulation) mode.
FM SIGNAL GENERATOR CONDITION
Modulation
Modulation frequency
Output level
In
9, 000000
J
Modulation
Modulation frequency
Output level
“Stereo” OFF position
“Stereo” ON position
(Indicator lighting)
Adjust point of pilot
circuit
FM SIGNAL GENERATOR CONDITION
Modulation Stereo ‘“‘L’’ mode or ‘‘R”
mode 45%, Pilot 10%
Modulation frequency
Output level
LPF (fc = TSkHz~ 19kHz)
FM SIGNAL STRENGTH LEVEL ADJUSTMENT FM SIGNAL GENERATOR CONDITION
Modulation
Modulation frequency
Output level
1. Test equipment connection is shown in figure.
2.Set the unit to “FM and IF normal” mode.
3. Set the radio frequency display and signal generator to
100.10 MHz.
4.Change FL display from “frequency” to “dB” by pressing
the FM signal button.
5. Adjust VR101 so that 54dB is indicated. ‘54dB” is
indicated on the FL display. eecnee
6. Repeat steps 4, 5.
e Adjustment points.
FM STEREO FM DET FM DET
FM MPX SEPARATION Coil Coil
VCO. ADJ. ADJ. (100.IMHz) (lOO.IMHz)
a7 ||
EE eae ren rn Cee ees renee Seen,
FM FRONT
END PACK
ra)
2 = FM STRENGTH
— LEVEL ADu.

m@ BLOCK DIAGRAM
FM ANT FM FRONT-END
BUFFER
Q25i
LW:ON
one LW:ON Q951, 952 Q90!1 903
MW/
LW
MW/
LW
FM
LOOP
+8) SWITCHING LOOP
FILTER FILTER
x90)
(7.2 MHz)
nip — tb be bef
|
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1C 901
PLL FREQUENCY
SYNTHESIZER
Key return signal
KEY MATRIX
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tuning
down
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Signal 13
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MICROCOMPUTER
FL DISPLAY
ST-G460L ST-G460L
;
FM
MONO
DISTORTION
adj.
FM
+B)
q
TIO!
.102
FM
DET
COIL
IC
101.
FM=1F
AMP
3
Ic1o2
———
—
—
— —
—
—]
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FM
1F&DET
ners
‘
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24
211
20
19
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AM
DET
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Liane
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|
STABILIZER
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FM
DET
4
|
Th
LEVEL
ee
-
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5
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|
EM
|
L
VR101 VR30! ne ‘ AN6554F
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SCHEMATIC
DIAGRAM
crate
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19-21
(This schematic diagram may be modified at ay time with the development
of new technology.)
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34 tevi0 eu sig S907: CHT. S908: CHa. 5909: CHO. ranks. For this circuit, be sure to use the ceramics of the same rank in a pair.
2
dl
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S91
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repairing
and
replacement,
pay
close
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diodes
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D908)
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1c
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:
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:
AN7274NS Sirine S911: FM, S912: MW, S913: LW
FAM CONV,» OFT ©S914: FM mode selector switch.
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| ©$916, S917: Preset channel switches. Color marking
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S917:
UP
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or
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voltage
values
are
the
standard
values
for
the
unit
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10.67
MHz
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measured
by
the
DC
electronic
circuit
tester
(high-impedance)
with
'
saa
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the
chassis
taken
as
standard.
Therefore,
there
may
exist
some
Note:
©
mark:
Diode
is
used.
eB errors in the voltage values, depending on the internal impedance x mark: Diode is not used.
“Be of the DC circuit tester. ( —): AM voltage”
wrt
a
mt
°
Positive
voltage
lines
come
AP
gignal
lines
+
Caution!
a3 au !
83 oocop FM OSC ——s FM signal
E) - aus aasap> AM OSC ama AM signal IC and LS! are sensitive to static electricity.
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R707
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Important
safety
notice
Secondary
trouble
can
be
prevented
by
taking
care
during
repair.
eT
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use
a
Components
identified
by
”.
mark
have
special
characteristics
*
Cover
the
parts
boxes
made
of
plastics
with
aluminum
coil.
(0-1V)(0.1¥)
——
Eo
27k
EE
important
for
safety.
When
replacing
any
of
these
components,
+
Ground
the
soldering
iron.
2SA i309AQSTA 7 use only manufacturer's specified parts. * Put a conductive mat on the work table.
ITCH
eae
as
+
Do
not
touch
the
legs
of
IC
or
LSI
with
the
fingers
directly.
CCUIT
: 1C302
7
:
AN6554F
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TRANSISTORS
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DIODES
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ST-G460L ST-G460L
1
2
3
4
5
6
7
8 9
10
C POWER SWITCH
PC.8:. SYSTEM CONTROL PC.B.
gm CIRCUIT BOARDS AND WIRING CONNECTION DIAGRAM
[p) TUNING SWITCH PC.B.
LF ($701)
To) TE OPERATION SWITCH PC.B. | POWER |
{runing }—
(0)
(9)
(8)
(7)
(6)
(5)
(4)
(3)
(2)
(1)
(MEMORY
7
7 —AUTO MEMORY }
aac 39 CHANNEL RANDOM PRESET TUNING | __| Ie
(UP) (DOWN) (ON/OFF) ,AUTO/ -LW/ -MW / -FM /
( ) ( X )( )
MONO —FREQ SHIFTA—ALLOCATION/\ —FREQ SHIFT
RESET Srna FM- FM- —- BAND SELECTOR
SIGNAL| | MODE alc
FM MPX VCO adj. FM mono distortion adj.
TP301
aim
|
TP102
|
|
MAIN
PCB.
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Ba
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1
A CONTROL PC.B.
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ST-G460L
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= FUNCTIONS OF IC TERMINALS
(IC902: M50941-421SP)
IN/OUT | MARK | DESCRIPTION OF TERMINAL
VREF
Le | INPUT pee voltage terminal.
jj Not used in this unit, connected to GND.
he et Bo
SSL1
SSL2
INPUT SSL3 FM signal level detector terminal.
Station detection of auto tuning terminal.
INPUT e Received: ‘‘H”’, No signal: ‘‘L”
_ INPUT STEREO Reference voltage terminal.
10 TUNING O Not used in this unit.
17 TUNING 1
[aa | ———_[RFBAND| __Not used in this unit
FM IF BAND selector terminal.
12 OUTPUT | IF BAND e“‘normal”’: “L’’, ‘‘super narrow”: “H”’
| 14 «| —— | REC | Not used in this unit.
Forcible monaural selection terminal.
15 OUTPUT
SRDY
2
Not used in this unit.
ae ed er ae
Ea INPUT INTT Remote control input terminal. Not used in this unit.
i | INPUT INT2 Power supply detection terminal.
Ground terminal.
Vss
INPUT
RESET
Reset
signal
terminal.
| 28 | INPUT | XIN | Connecting terminal for crystal oscillator.
| 29 | ourpuT | xouT
| 30 =| —— | xcIN | _ Notused in this unit, connected to GND.
| 31 | —— | xcouT | Not used in this unit.
| 33 |] —~ [| nc |
Terminal for key return signal
34 RO to external key matrix. 3.6V
J INPUT j | | |
37 R3 QO 1V/2msec. div
INPUT Power supply terminal for FL display.
Segment signal terminal for
39
SO
FL
display.
-
AA
----
HABE
Sy
J OUTPUT J a
10V/5msec. div.
Terminal for key scan signal
56 T1 to external key matrix and aay
§ OUTPUT 5 grid signal terminal for FL display.
ee He jov/2mesc div.
Vcc
Power supply terminal of device.
pea | input [veo
-17-
Forcible monaural mode
Terminal to eliminate shock noise due to unlocking at PLL.
<«Muting output>
e Pin 25 (CE) is “rH” or “Ho”
e Power switch “‘off’’.
¢ Frequency change. (up/down, FM-+AM (MW/LW), REC).
eFM REF/IF selection.
PLL data output terminal.
SRDY: serial I/O enable signal, CLK: clock signal,
SOUT: serial data signal.
Control input terminal.
Clock pulse waveform output terminal.
°FM: 1kHz signal (duty 50%)
m@ DESCRIPTION OF FL PANEL
¢ GRID ASSIGNMENT
6G
S9
$12 $11 $10
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PIN NO. 1}2]3] 4)
FIFINIS
CONNECTION |1/1/P/8
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m@ REPLACEMENT PARTS LIST
Notes: ¢lmportant safety notice:
Components identified by A. mark have special characteristics important for safety. When replacing any of these components use
only manufacturer's specified parts.
@The parenthesized indications in the Remarks columns specify the areas. (Refer to the first page for area.)
Parts without these indications can be used for all areas.
efF]: Indicates parts that are supplied by PFS. (Panasonic France S.A. Longwy division).
Ref. No. Part Name & Description | Remarks
fee ee R323, 324 |ERDS2TJ332T |C.RESISTOR 1/4W 3.3K
| [RESISTORS R325, 326 |ERDS2TJ102T |C.RESISTOR 1/4¥ 1K
R327, 328 = |ERDS2TJ272T |C.RESISTOR I/4W 2.7K
R101 ERDS2TJ33iT jC. RESISTOR 1/48 = 330
Ref. No. Part Name & Description Remarks
R329, 330 |ERDS2TJS62T |C. RESISTOR 1/4¥ 5. 6K
R102 R331 ERDS2TJ333T |C.RESISTOR 1/4¥ 33K
R332 —«ERDS2TJ102T |C.RESISTOR 1/4" 1K
R105 R333 ERDS2TJ392T |C.RESISTOR 1/4W 3. 9K
R106 ERDS2TJ561T |C.RESISTOR 1/4¥ 560
R340 ERDS2TJ333T |C.RESISTOR 1/4W 33K
R108 ERDS2TJ104T iC. RESISTOR 1/4W 100K R701 ERDS2TJ102T jC. RESISTOR 1/4W 1K
R109 RDS2TJ101T jC. RESISTOR 1/4W 1
E 00 R702 ERDS2TJ221T |C.RESISTOR 1/4 220
R110 R703 ERDS2TJ222T |C.RESISTOR 1/4W 2. 2K
R111 R704~706 |ERDS2TJ101T |C.RESISTOR 1/4¥ 100
R112 R707 C.RESISTOR 1/4 47K
R113 R708 C.RESISTOR 1/4¥ 10K
Ri4 R709 ERDS2TJ223T |C.RESISTOR 1/4¥ 22K
=~)
— =o (a — = a
¥
R710 ERDS2TJ104T |C.RESISTOR 1/4¥ 100K
R711 ERDS2TJ100T |C.RESISTOR 1/4¥ 10
R712 ERDSIFVJ470T |C. RESISTOR 1/2W
R901 ERDS2TJ102T |C.RESISTOR 1/4¥ 1K
R902 ERDS2TJ273T |C.RESISTOR 1/4W 27K
R903 C.RESISTOR 1/4W 6. 8K
R904 ERDS2TJS61T |C.RESISTOR 1/4W 560
R905 C.RESISTOR 1/4W 12K
R906 C.RESISTOR 1/4W IK
R907 C.RESISTOR 1/4H 33K
R908 ERDS2TJ392T |C.RESISTOR 1/48 3.9K
R909, 910 |ERDS2TJ473T |C. RESISTOR 1/4¥ 47K
R915~917 |ERDS2TJ104T |C.RESISTOR 1/48 100K
R919~921 JERDS2TJ105T |C.RESISTOR 1/48 1M
R922 ERDS2TJ681T |C.RESISTOR 1/4¥ — 680
R923, 924 |ERDS2TJ10ST |C. RESISTOR 1/4¥# IM
R925 ERDS2TJ473T |C.RESISTOR 1/4¥ 47K
R926 ERDS2TJ123T |C.RESISTOR 1/4 12K
R927 C.RESISTOR 1/4¥ 1K
R929 ERDS2TJ103T |C.RESISTOR 1/4 10K
ERDS2TJ393T |C.RESISTOR 1/4¥ 39K
R931, 932 C.RESISTOR 1/48 10K
| 1/4W 100K
R939 RDS2TJ105T |C. RESISTOR 1/4W 1M
R951 ERDS2TJ102T |C€.RESISTOR 1/4W 1K
R952 ERDS2TJ472T |C.RESISTOR 1/4¥ 4.7K
R953 ERDS2TJ123T |C.RESISTOR 1/4W 12K
aa
io
Rao
ECKTLH103ZF
7K
ERDS2TJ563T |C. RESISTOR 1/4¥ 56K
7
E
R202
R203
R205
R207
R208
R210
ERDS2TJ223T |€. RESISTOR 1/48 22K
ERDS2TJ822T |C.RESISTOR 1/4W 8 2K
10
4
RDS2TJ473T |C. RESISTOR 1/48 47K
ERDS2TJ681T |C. RESISTOR 1/48 680
R301 ERDS2TJ683T {C. RESISTOR 1/4W 68K
39K
82
R211
R212
R213
R251
R252
R253
R254
R255
R296
rosersanar_[oeSiSTOR 1/770
R310 __—_—|ERDS2TJ102T |C. RESISTOR 1/48 1K
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CAPACITORS
C003 C.CAPACITOR SOV 0.01U
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T-G460L
Remarks
Ref. No. Part Name & Description
C708 ECEAIW101B |E CAPACITOR 35V 100U
ECEALVK100B j|E.CAPACITOR 35V 10
' ECKTIH1O3ZF |C.CAPACITOR SOV 0.01U
C712 ECEAIVK3R3B |E.CAPACITOR 35V = 3. 3U
C713 ECEALW101B {E.CAPACITOR 35V 100U
C715~718 |ECKTIHIO3ZF |C.CAPACITOR 50V 0.01U
C719 ECEAICKIO0B |E.CAPACITOR 16V 100
C720 ECFRIELO4ZFY |S.CAPACITOR 25V 0.1U
C901 ECEAQJU471B |E.CAPACITOR 6.3V 470U
C902 ECBTIE103ZF5 j€. CAPACITOR 25V 0.01U
C903, 904 |RCBSINISOJCY |C.CAPACITOR © 50V —150P
C905 ECKTIHLO32F |C.CAPACITOR 50V 0.010
C906 ECEAZOMAR7RB |E. CAPACITOR 25V 4. 7U
C907 ECEALHKR47B |E.CAPACITOR 50V 0.47U
¢908 ECFID223KXL |S.CAPACITOR — 25V 0. 022U
C910 C.CAPACITOR SOV 0. 022U
C911 ECKTIHLO32F |C.CAPACITOR 50V 0. 01U
C914 ECKTLHIO3ZF |C.CAPACITOR © 50V_ 0.010
C915, 916 /ECEAQJU102B jE. CAPACITOR 6. 3V 1000U
C918 ECEAICK100B [E.CAPACITOR 16V —10U
C919 ——|ECEALVK3R3B |E.CAPACITOR 35V 3. 3U
C920 ECBTLH102KBS |C. CAPACITOR SOV 0. O01U
C921 ECEADJUI01B jE. CAPACITOR 6.3V 100U
C922~927 |RCBSIHLOLKBY |C.CAPACITOR 50V 100P
C951 ECBTIE2232F5 jC. CAPACITOR = 25V 0. 022U
C952 ECEALHKO10B |E.CAPACITOR 5O0V
Ref. No. Part Name & Description Remarks
EAGT
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C216 RCBS1H680JLY
C309 ECEA1HKR22B
C311 ECEA1HKR22B
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Ref. No. Part Name & Description
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1C101 ma IC, BUFFER AMP
10102 IC, FM IF AMP
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Ic302
Ic901
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951,952 |2SC33L1AQSTA | TRANSISTOR
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VR302 EVNDXAAOOB14 |V.R, STEREO SEPARATION ADJ.
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2201
2202
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COMPONENT COMBINATION
COMPONENT COMBINATION
|
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L201, 202
L203
L204
L303, 304
L305, 306
L307
L901
L902
L903
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RLQZP1O1KT-Y |COIL
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RLQZPR47KT-Y |COIL
RLQZP1O1KT-Y |COIL
RLQZPIOAKT-Y (COIL
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TRANSFORMER
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T101
T102
T701
RL 14B005~-Z
RL T4B006-2Z
SLTSK264-K
FILTERS
D705 maiaomta [pipe —s—=<ié~sESC“‘é;CSCéiicriON _ |SVFELO7MZ2-B [CERAMIC FILTER (BLUE)
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X902
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Part. No. Part Name & Description
Part No. Part Name & Description Remarks
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Ref. No. Part No. Part Name & Description Remarks
CABINET PARTS
RKMO032-K
SNE2129-1
RGROO18A-M
RGROO44
RGRO045
RGROO18A-N
RGUO030
074
045
009-1
XTB3+6J
SHE187-2
1 XTBS3+8JFZ1
2 XTB3+20JFZ
3 XTB3+8JFZ
6 RGKOOSOB-K
16-1 RKWO030
7 RGUO111-K
8 RGUO112-K
RGUO114-K
RJH3201N
SJT390
RMRO128
RYPOOS96
CABINET
SCREW
REAR PANEL
REAR PANEL
REAR PANEL
REAR PANEL
POWER BUTTON
HOLDER
CHASSIS
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RQTOL18B INSTRUCTIONS MANUAL (EB)
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SCREW
SCREW
SCREW
FRONT GRILL
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FUNCTION BUTTON
PRESET BUTTON
TUNING BUTTON
TERMINAL BOARD
FUSE HOLDER
FL HOLDER
FRONT PANEL
SSA270M FM ANTENNA
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ST-G460L
B® EXPLODED VIEW (arts list on page 22)
Printed in Japan
~23-
F890505600
TW/FF

ORDER NO. AD8911348S0
Service Manual
5 T-G460
> T-G460L
Color
Please file and use this supplement manual together with the (K)...Black Type
service manual for Model No. ST-G460, Order No. AD8906195C1
(P, PC areas), or AD8906183C8 (EG, Ei, G, GN, PX areas) and Area
ST-G460L, Order No. AD8905129C8 (E, E5, EB, EF areas). Country
Cai Area Color
c
)
)
Note:
e The purpose of this supplement is to correct errors in the “Replacement Parts List”.
Please correct your service manual as follows.
A | A
.
.
Far East-PX and
(E), (E5)| Continental Europe
A
CORRECTION
@ PEPLACEMENT PARTS LIST
ST-G460 (Page 20 of service manual.)
Change of Part No. |
Ref. No. a g Part Name & Description Remarks
Original
CABINET AND CHASSIS
RGK0090B-K RFKNTG460EGK GRILL ee
RYP0122 RFKGTG460P-K FRONT PANEL (P, PC) areas
RYPO121 RFKGTG460EGK FRONT PANEL (EG, Ei, G, GN, PX) areas
ST-G460L (Page 22 of service manual.)
ee
ee
eee
ieee
ere
Ree
CABINET AND CHASSIS
RGKO0I0B-K RFKNTGAG0EGK | FRONT GRILL Po
RYPOOS6 RFKGTG460LEK __| FRONTPANEL eee
Matsushita Services Company Panasonic Sales Company, Matsushita Electric of Canada Limited
Division of Matsushita Electric Division of Matsushita Electric | 5770 Ambier Drive, Mississauga, Ontario,
Corporation of America of Puerto Rico, Inc. L4W 2T3
@ 50 Meadowland Parkway, San Gabriel Industrial Park
Secaucus, New Jersey 07094 65th Infantry Ave. Km.9.5 Panasonic Tokyo Sales Department
Carolina, P.R. 00630 Matsushita Electric Industrial Co., Ltd.
World Trade Center Bldg., 4-1, Hamamatsu-cho,
Matsushita Electric Industrial 2-chome, Minato-ku, Tokyo 105, Japan
Co., Ltd.
Central P.O. Box 288,
Osaka 530-91, Japan
Printed in Japan
F891112000TW