Technics ST-K50 User manual

ORDER NO. AD9006162C7
Service Manual
CYUARTZ Synthesizer
AM/FM Stereo Tuner
SPECIFICATIONS
(DIN 45 500)
W@FM TUNER SECTION
Frequency range 87.50 ~ 108.00 MHz (0.05 MHz steps)
Sensitivity 1.5 pV (IHF, usable)
SIN 30 dB 1.3 pV (75 Q)
SIN 26 dB 1.2 pV (75 Q)
SIN 20 dB 0.9 pV (75 Q)
IHF 46 dB stereo quieting sensitivity 28 wV/75 QO
Total harmonic distortion
MONO 0.15%
STEREO 0.3 %
SIN ‘
MONO 70 dB (78 dB, IHF)
STEREO 65 dB (70 dB, IHF)
Frequency response 20 Hz~15 kHz, +0.5 dB~—1.5 dB
Alternate channel selectivity
+400 kHz 55 dB
Capture ratio 1.0 dB
Image rejection at 98 MHz 45 dB
IF rejection at 98 MHz 90 dB
Spurious response rejection at 98 MHz 75 dB
AN suppression 50 dB
Stereo separation
1kHz 40 dB
10 kHz 30 dB
Carrier leak
19 kHz — 30 dB (—35 dB, IHF)
38 kHz —45 dB (—50 dB, IHF)
Channel balance (250 Hz~ 6,300 Hz) +1.5 dB
Limiting point 1.2 pV
Bandwidth
IF amplifier 180 kHz
FM demodulator 1000 kHz
Antenna terminais 75 Q (unbalanced)
‘Technics
Matsushita Electric Industrial Co., Ltd.
Central P.O. Box 288, Osaka 530-91, Japan
Tuner
Color
(K)osclesanciids Black Type
Area
Asia, Latin America,
Middle Near East and
Africa
(K)
Oceania
Far East-PX
WAM TUNER SECTION
Frequency range 531 kHz~1602 kHz (9-kHz steps)
530 kHz~1600 kHz (10-kHz steps)
Sensitivity (S/N 20 dB) 20 pV, 300 pV/m
Selectivity (+9 kHz) (at 999 kHz) 50 dB
Image
rejection
(at
999
kHz)
40
dB
IF rejection (at 999 kHz) 60 dB
Wi GENERAL
Output voltage 0.3 V (0.6 V IHF)
Power consumption 9W
Power supply
For Oceania: AC 50 Hz/60 Hz, 240V
For others: AC 50 Hz/60 Hz, 110 V/127 V/220 V/240 V
Dimensions (W x H x D) 430 x 64« 290 mm
(16-15/16” x 2-17/32” x 11-13/32”)
Weight 2.3kg (5.1 Ib.)
Notes:
1. Specifications are subject to change without notice.
2. Weight and dimensions are approximate.
3. Total harmonic distortion is measured by the digital spectrum
analyzer.
Panasonic Tokyo Sales Department
Matsushita Electric Industriaj Co., Ltd.
World Trade Center Bidg., 4-1, 4amamatsu-cho,
2-chome, Minato-ku, Tokyo 105, Japan

ST-K50
m@ CONTENTS
Page
Page
ACCESSORIES: sa24 coe cocscewe nce ekidg ie chan Gove ee utes 2 TERMINAL GUIDE OF IC’S,
CONNECTIONS
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LOCATION OF CONTROLS ....... 2... cc cece cece eens 5 PRINTED CIRCUIT BOARDS AND
REMOTE
CONTROL
OPERATION
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INSTRUCTIONS
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MEASUREMENTS
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23
m@ ACCESSORIES
®
Stereo
connection
cable.....
1
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FM
indoor
antenna..........
1
Screws...
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2
(SJP2249-3) (SSA272M) (XTN3+ 10AFZ)
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e AC power supply cord....... 1 © AM loop antenna............ 1 ¢ Remote-control
(SJA173)...For (GN) area only. (SPB1163T) transmitter ..............000. 1
(RJA0004)...For others.
e AM antenna holder........ 1 e Batteries ................... 2
(SMA233-1M) (R03)
: @AC attachment plug .......... 1
ok CC® CC (SJP9215)...For (GC), (PX)
Hn areas.
(EUR64747)...For (GN) area only.
(EUR64746)...For others.
m@ CONNECTIONS
FM indoor antenna FM outdoor antenna
a
Tacks or tape
75-ohms coaxial
cable (not included)
AM outdoor antenna AM loop antenna
=
Vinyl-covered wire
(not included)
Note: An outdoor antenna should be installed by a qualified technician only.
4
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@FM indoor antenna (included)
Attach to a wall (using tack or tape) facing in the direction of best
reception.
For best reception sound quality:
An FM outdoor antenna is recommended.
Notes:
The tack should not contact the internal antenna wire.
© Disconnect this antenna if an FM outdoor antenna is installed.
HFM outdoor antenna (not included)
If the FM indoor antenna does not provide satisfactory reception
of FM broadcasts, an outdoor antenna should be used.
The outdoor antenna may be required in a mountainous region, or
if this unit is located inside a reinforced-concrete building, etc.
oe to connect a 75-ohms coaxial cable
1. Remove a piece of the outer C...) => (=
vinyl insulator.
20 mm (25/32”’)
2 Twist the shield braid to
expose the core wire. —
|
10 mm (3/8”)
3 Connect the shield braid and
the center conductor as
shown below.
Shield braid Core wire
AM antenna
WAM loop antenna (included)
Connect the AM loop antenna to the AM antenna terminals, and
attach it to a column, rack or this unit (facing in the direction of
best reception).
Notes:
¢ If this antenna is not properly installed, AM broadcasts will not
be received.
© Be sure to connect the AM loop antenna even when an outdoor
antenna is used.
Pay attention to the following points when attaching the
antenna.
© Do not attach it horizontally (to do so would impair reception).
¢ Do not attach it close to power cords, speaker wires or metal
surfaces (to do so would result in noise).
© Do not attach it close to a tape deck (when the tape deck is
being used, chirping or beeping sounds may be received).
When attaching the antenna to a column, a wall
or rack
Affix it vertically. Screws (included)
Column y
AM antenna
holder (included)
When attaching the antenna to the unit
This type of installation may cause impaired reception or result in
signal noise. If possible, attach the antenna to a rack, a wall, ora
column.
Move the antenna toward the right or left to find the point of best
reception.
Rear panel of Screws (included)
this unit
AM antenna hoider
(included)
WAM outdoor antenna (not included)
The outdoor antenna may be required in a mountainous region, or
if this unit is located inside a reinforced-concrete building, etc.
Use 5—12 m (16—40 ft.) of vinyl-covered wire horizontally at the
window.
Turntable
(not included)
Refer to [4]
at the right
(R) &
Amplifier
(not included)
Graphic equalizer
(not included)
Cassette tape deck
(not included) SYNCHRO
OUT EDIT
@ ©
IN
REMOTE
CONTROL
Compact disc player
(not included)
Make connections in the numbered sequence by using the included cables
and power cord.
i)
Household
AC outlet
tH)
Household
AC outlet
ST-K50
Make connections as described below for remote-con-
trol operation. For information concerning the stereo
connection cables of each unit, refer to that unit.
{4] Connect the stereo connection cable
(included).
[2] Connect the L-type cables (not included),
[3] Connect the AC power supply cords.
3-1} Connect the AC power supply
cord (included),
Connect this cord only after all other cables have
been connected.
[4] “AC OUTLET”
“SWITCHED” outlet
Power is controlled by the power switch.
This outlet is only for use with other audio equip-
ment.
Also, do not exceed the indicated power rating
when connecting to this outlet.
Note:
When this unit is used with the Technics amplifier
model SU-G50, the power indication becomes
‘500 W MAX’’, becoming lower than the amplifier’s
power consumption indication.
This is because the power consumption (510 W
for the SU-G50) indicated on the nameplate, per
IEC 65 standards, determines the pover indication
during maximum available output power.
There is no problem in this respect ior home use,
because the amplifier’s power consumption is
290 W or less.

m LOCATION OF CONTROLS
Control section
[1] Power “standby (/on” switch
(power/m standby () «= on)
This switch switches ON and OFF the secondary circuit
power only. The unit is in the ‘standby’ condition when this
switch is set to the standby & position. Regardless of the
switch setting, the primary circuit is always ‘‘live”’ as long as
the power cord is connected to an electrical outlet.
[2]“standby” indicator (standby)
This indicator illuminates when the power switch of this unit or
that of the remote control is switched ““OFF”’. Its purpose is to
alert the user of the constant supply voltage to the internal
circuitry even with the power switch OFF.
[3] Remote-control signal receptor
(remote sensor)
[4] Preset-tuning buttons (1-0)
(24 channel random preset tuning)
These buttons are used to preset FM and AM broadcast fre-
quencies into the memory of this unit, and are also pressed to
recall the desired preset stations.
ST-K50 3 €s) 0)
m@ REMOTE CONTROL OPERATION
[5] Band selectors (band)
FM:
Press this button to listen to an FM broadcast.
AM:
Press this button to listen to an AM broadcast.
allocation:
When the AM button is pressed for about 4 seconds, the AM
frequency step will change to 10 kHz per step.
(This unit is set to 9 kHz before shipment.)
In order to return to the original frequency indications, press
this button for about 4 seconds again.
[6] Tuning buttons (tuning)
These buttons can be used for tuning to the desired broadcast
station. If the button is pressed momentarily and then releas-
ed, the frequency will change at intervals of 0.05 MHz for FM
and 9 kHz (or 10 kHz) for AM.
FM mode selector (FM mode)
This unit automatically switches to the stereo mode when an
FM stereo broadcast is received. This selector is used to
select the mode (stereo or monaural) of FM broadcast
signals.
Memory button (memory)
This button can be used when presetting broadcast station fre-
quencies to the memory.
Display section
[A] FM stereo indicator (stereo)
This indicator automatically illuminates when an FM stereo
broadcast is being received.
It will not illuminate if the FM mode selector is set to the
monaural mode.
Digital frequency display
Memon indicator (/M))
This indicator illuminates when the memory button is pressed.
[D] Channel display
This display shows the channel number selected by one of the
preset-tuning buttons.
[E] Quartz-lock indicator (quartz lock)
This indicator illuminates when the unit is tuned precisely to a
broadcast station.
¢This remote-control transmitter can be used for control of a
Technics amplifier with a control terminal, as well as a cassette
tape deck, turntable, compact disc player, or a graphic
equalizer with a remote-control terminal. Consult your dealer
for details.
For detailed information concerning operation steps, etc.,
please refer to the appropriate page for each unit and the
respective operating instructions. For this system, you can
listen to tapes or compact discs, etc., by operating the remote-
control transmitter without using the amplifier’s input selectors.
(Refer to the Technics amplifier’s operating instructions.)
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AM/FM preset tuning |
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[A]
Press this key to switch the tuner ON or to the stand-by
condition.
Note that there is no need to press this key if the tuner's
power is ON. (If it is pressed, the tuner will be switched to
the stand-by mode.)
[oo S| Press this key to select the desired preset chan-
nel.
cs Press this key to temporarily reduce the volume level.
The volume level is attenuated by 20 dB (approx. 1/10).
Press once again to return to the previous volume level.
V volume &
OIC Press this key to adjust the volume level.
Cassette tape deck keys
ceck | Press this key to select the deck (tape deck 1 or tape
deck 2) to be used.
<play| [play> | >: For the ‘‘A’’-side of the tape
C4 CJ
<4: For the “B’-side of the tape
Press one of these keys to begin the playback or recording, press-
ing the key corresponding to the side of the tape to be played (or
recorded).
Note: Depending on which Technics tape deck is used in com-
bination with this unit, tape deck 1 might be the ‘‘A’’-side
playback-only type.
deck
pees Press this key to stop tape movement.
« »>
| Co
Press this key to advance or rewind the tape while the unit is in
the stop mode.
Press this key to select the desired tune while the unit is in the
play mode.
(Only applicable to a Technics tape deck with the ‘music select”
functions.)
Press this key to make a silent interval during recording.
(After 4 seconds, the tape deck will automatically change to the
recording stand-by mode.)
To start the recording again, press the playback key.
Press this key to temporarily stop playback or recording.
C—_] |Press the playback key to resume the play or recording.
Press this key to change to the recording stand-by mode.
Note
Depending on which Technics tape deck is used in combina-
tion with this unit, it might be that record-muting, pause
of the playback (and the recording), and the recording func-
tions of tape deck 1 not be possible by using the remote-
control transmitter.
[D] Compact disc player keys
» play '
(__) | Press this key to start the play.
@stop .
Co Press this key to stop play.
iGase | Press to stop disc play temporarily.
L_1 | Press the playback key to start the disc play.
Hea skip SKID DPI
Co
Press one of these buttons briefly to move the pick-up to the
beginning of a specific track.
If a Technics multi compact-disc player is used in com-
C—] } bination with this unit, the disc to be played can be
selected by first pressing this button and then pressing
the appropriate ‘numeric button”.
program? Press to select the desired play mode.
(“program” or “‘continue’’)
1 |__[ £2 ] These buttons can be used to select track
CC] | C_) | number.
Note:
To select a track numberd 10 or higher in the direct access
play or program play mode, first press the “+10” button the
necessary number of times and then press the appropriate
“numeric button”.
}

m@ DISASSEMBLY INSTRUCTIONS
“ATTENTION SERVICER”
Some chassis components may have sharp edges. Be careful when disassembling and servicing.
Remove the 5 screws (@~@).
Removal of the Operation switch 1. Remove the 2screws(@.@).
P.C.B. and Remote Sensor P.C.B. 2. Remove the front panel in the direction of the arrow.
eae RefNo. | Removal of the Main P.C.B.
-2—->
4 é
@ Remote Sensor P.C.B.
eRemove the 1 screw (@). 1. Remove the 2 connector
@ Operation Switch P.C.B. Removal of the connector (CN701, CN702).
@Remove
the
4
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(Q~@).
2.
Remove
the
4
screws
(Q@~@).
)
peu Removal of the FL Drive P.C.B.
Procedure 0 Soe"
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@
Claw
AC
Outlet
Cover
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1. Remove the 2 connector (CN701, CN702).
2. Remove the 3 screws (@~®).
3. Remove the FL drive P.C.B. in the direction of the 4. Release the 2 claws of AC outlet cover.
arrow. 5. Remove the main P.C.B. in the direction of the arrow.

m@ MEASUREMENTS AND ADJUSTMENTS
FM ADJUSTMENT
Control positions and equipment used
@ FM signal generator(FM-SG)
@ Frequency counter
@ Choke coil(100yH)
@ Resistor(100kQ)
@ Stereo modulator
@ Distortion analyser
e@ DC electronic voltmeter(EVM)
Note: For Z201 (AM ANT and OSC coil), 2202 (AM-IFT), they are supplied as adjusted parts. So, do not turn the cores of the parts.
It is not necessary to adjust the AM circuit.
FM MONO DISTORTION ADJUSTMENT
FM SIGNAL GENERATOR CONDITION
1.Test equipment connection is shown in figure. Modulation
2.Set the unit to “FM” mode.
3.Set the radio frequency display and signal generator to Output level
100.10MHz.
4.Adjust the core of T201 so that the voltage measured in
signal mode is OmV(0420mV) in 300mV range.
5.Adjust T202 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 ‘‘auto”’ position.
3.Set the radio frequency display and signal genarator to
100.10MHz.
4.Adjust VR301 for 19kHz+30Hz on frequency counter
reading.
USING ALTERNATE SYSTEM
1.Receive the stereo broadcast.
2.Adjust VR301 until stereo indicator lights up. Fix the arm
of VR301 as shown in figure.
FM SIGNAL GENERATOR CONDITION
Modulation 0% (non-modulation)
Output level
Modulation frequency
Frequency counter
“Stereo” OFF position
“Stereo” ON position
(Indicator lighting)
Adjust point of pilot
circuit
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|
SCHEMATIC
DIAGRAM
(Parts
list
on
pages
19~21)
1
2
3
4
5
(This
schematic
diagram
may
be
modified
at
any
time
with
the
development
a
PRINTED
CIRCUIT
BOARDS
AND
WIRING
CONNECTION
DIAG
RAM
(Parts
list
on
of new technology.)
:
Le
ee
rout
Put
REMOTE
Notes:
[2]
orcration
SWITCH
PCB.
(GND
75.0%
ANTI[
ANT
ee
eg
CONTROL
©S701
:
Power
source
switch
in
“‘on”
position.
A
(AMP
%)
©S901~910
-:
Preset
tuning
switches.
[soos CH1, S902: CH2, S903: CH3, $904: one]
JK703
$905: CH5, $906: CH6, S907: CH7, S908: CH8,
$909: CH9, $910: CHO
©S911,S912 : Band selector switches.
(S911: FM,S912: AM)
S914 : Memory set switch.
S915 : FM mode selector switch.
©S$916,$917 ; Tuning switches.
($916: down, S917: UP)
©SK703 : Voltage selector switch in “‘240 V” position. B
; (110 V/127 V/220 V/240 V)
For (GC), (PX) areas
@\Indicated voltage values are the standard values for the unit measured by
the DC electronic circuit tester (high-impedance) with the chassis taken as
standard. Therefore, there may exist some errors in the valtage volues,
depending on the internal impedance of the DC circuit tester.
( ): AMvoltage ,{__]: MUTING voltage
Positive voltage lines = = = Negative voltage lines
aooo> FM OSC <——|> FM signal
mweeep AMOSC mau AM signal
coneses AF signal lines Cc
[ME MoRY]| FM MODE |
(AM)
(DOWN ¥w )
r{eann}y
(FM)
SS
|
Zz
“)
e
——
e|mportant safety notice
Components identified by A mark have special characteristics important 7
for safety. When replacing any of these components, use only
manufacturer’s specified parts.
(0)
«Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
*Cover the parts boxes made of plastics with aluminum coil.
«Ground the soldering iron.
«Put a conductive mat on the work table.
(9)
(8)
hr
.
/
«Do not touch the legs of IC or LS! with the fingers directly. od | i FM offset Woltage (Omv)
iy
a : ui
@ TERMINAL GUIDE OF IC’S, TRANSISTORS AND DIODES = |
2
LM7001
AN7273W
LC6512A3997
2SA933SQRSTA
2SC2787LTA
3
©
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2SC3940AQSTA
1SS254TA
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LNO18304P
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(1)
-13- -14-

m@
PRINTED
CIRCUIT
BOARDS
AND
WIRING
CONNECTION
DIAGRAM
eens
tist
on
pages
19~21)
VOLTAGE ADJ.
(GC,PX) areas.
-(6C, 0) |
(en)
"230/240V
240Vv---
HO/2
50/60Hz
(
AC OUTLET
(SWITCHED )
(GC,PX) areas.
A MAIN PC.B.
REMOTE
CONT ROL
(AMP J)
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POWER
-15-
-14-

ST-K50
m@ BLOCK DIAGRAM
FM ANT
ZI01
FM FRONT END PACK CF201
Poe ee re Se ee 71
| RF amp |
-
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\
|
; | FM OSC
1 |
L-p-— Ga eos 4
6 3 J4 5
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Loop filter
Z201
FF Fog ote eat 5 ee 7
AM ANT ty be iat
Hel atk ett
AM Signal : 1
a LM700I
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a PLL FREQUENCY
SYNTHESIZER
a207~ 209 Paes ey =
(aM) @) EMA pxouT XIN PDI FM IN ie
Power
Supply
"
BOI
AM
INO
Selector
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AM OSC Coil
ppt eel sag
CF202
Q201,202
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FM MONO DISTORTION adj.
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202
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KEY MATRIX
s909 S910 7
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9 (0)
sgis |
MODE) |
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Voltage
regulator
Stereo/
mono
selector
Forcible 16
mono/
VCO stop
9kHz<
(9kHz<
aa OFF.
5 6
+ + Q303
iE J Muting
(AM) ha a en <a a a es ae ee re See ce ee i ieee control
4
VR301I TP30!I O 7
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D204
(AM) GB) p
PB3 MONO
LC6512A3997
MICROCOMPUTER
FL9OI
DISPLAY
ST-K50
OUTPUT
Q709
riers aes |
AC OUTLET
(SWITCHED)
|
|
|
|
|
|
|
|
|
|
|
|
J
S701
(POWER)
Q706,707
E OaI0! T70l
Qasio (t)
| | Power ON Q7ol D701,702
| Supply
| Regulator
| +
|
L
reas. Q702
(GC,PX)areas. |,
(REMOTE
SENSOR) Regulator
0928
D710,711
ON
Remote D929
control + REMOTE
drive CONTROL STANDBY
(To AMP)
-17-
a - =
| “> °<FM signal
|
ovg>
>
FM
OSC
|}
(GC,PX)areas.
{
mm
©
AM
signal
|
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iL-—-~— = =

m FUNCTIONS OF IC TERMINALS (ic901: Lc6512A3997)
pinout | MARK | SC(DESCRIPTIONOF TERMINAL
| PBs
INPUT Computer drive terminal.
DO~D13: Divided frequency data
DATA
OUTPUT
RO~R2: Reference frequency data
oe
a
ourrut [Poo
[Po
P02
P03
PEO
8
Data output t>4X08e
CL
f XOSC: Crystal OSC a
Not used in this unit.
UTPUT Auto/mono changeover terminal. (auto — 0V, mono — 5V)
OUTPUT Computer drive terminal.
Not used in this unit.
OUTPUT
INPUT Reset terminal.
TEST . :
hoe Wes Ground terminal.
te oe Not used in this unit.
INPUT OSC1
Connecting terminal for crystal oscillator.
OUTPUT | OSG2 2
wh | oe —|O
Digital signal terminal for display.
Terminal for key return signal to external key matrix.
OUTPUT Segment signal terminal for display.
Not used in this unit.
| NC |
OUTPUT
iNT
INPUT Power supply terminal of device.
Voltage of 5V is supplied during operation of device.
INPUT ae Terminal for key return signal to
PA3
Roe
PB2
Not used in this unit.
Stereo signal terminal.
SD signal terminal.
Tuner select terminal. (Ground connection)
external key matrix.
a/a uo NI] OD po
INPUT
-18-—

m@ REPLACEMENT PARTS LIST
Notes :
* Important 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 cover page for area.)
Parts without these indications can be used for all areas.
Part Name & Description
1SS254TA
Part Name & Description
DIODE
Remarks
INTEGRATED CIRCUIT (S)
18S254TA
DIODE
LNO18304P LED
LM7001
IC, PLL FREQUENCY
AN7273W
IC, FM/AM IF AMP. DET
VARIABLE RESISTOR (S)
SVIUPC1161C3
IC, FM MPX
LC6512A3997
IC, MICROCOMPUTER
EVNDXAAQOBS3
MAIN VOLUME
|
TRANSISTOR (S)
COMPONENT COMBINATION (S)
2SC1740SQ
TRANSISTOR
RALOOO6
COMPONENT COMBINATION
28027871
TRANSISTOR
RLA2Z001M-T
|COMPONENT COMBINATION
2SC1740S8Q
TRANSISTOR
RL12Z003M-T COMPONENT COMBINATION
2SC1740SQ
TRANSISTOR
EXBF8E104J
COMPONENT COMBINATION
DTC124EST
28C1740SQ
TRANSISTOR
EXBF9E104J
COMPONENT COMBINATION
TRANSISTOR
|[2sa93380R
DTAL44ESTP
HC-MD LOE COMPONENT COMBINATION
TRANSISTOR
|
TRANSISTOR
COIL (S)
28C1740SQ
TRANSISTOR
250331 1A-Q
TRANSISTOR
RLQZPR47KT-Y COIL
2SA933SQR
TRANSISTOR
RLQZPR22KT-Y COIL
2SC3S40AQSTA
TRANSISTOR
ELEPKR68MA COIL
2S€1740SQ
TRANSISTOR
IRLQUP1OIKT-Y
DTAL14YSTP
ef
DTC144EKT96
TRANSISTOR
TRANSISTOR
COIL
TRANSFORMER (S)
2801 740SQ
TRANSISTOR
(GC, PX)
2S01740SQ
TRANSISTOR
—
RLI4B002M-Z TRANSFORMER
DTAL44ESTP
TRANSISTOR
RLI4B003M-Z TRANSFORMER
28017408Q
TRANSISTOR
RTPIK4E012
POWER TRANSFORMER
2SA933SQR
{TRANSISTOR
RTPLK4E011
POWER TRANSFORMER
DIODE (S)
FILTER<S)
ISS254TA
DIODE
RLFFETWNAOIL |CERAMIC FILTER
1SS254TA
DIODE
1SS254TA
DIODE
+
OSCILLATOR (S)
1SS254TA
DIODE
+
1SR35200TB
DIODE
SV(SU722-S OSCILLATOR
MA4150M
[DIODE
EFOAS60KO4A OSCILLATOR
MA4O62MTA
DIODE
18S254TA
DIODE
(GC, PX)
DISPLAY TUBE
188254TA
DIODE
A
MA4O91MTA
DISPLAY TUBE
18S254TA
[DIODE
DIODE
1SS294TA
DIODE
SWITCH(ES)
1SS254TA
DIODE
ISS291TA
DIODE
RSP3B001-J
\3H POWER

Part Name & Description
Notes : * Capacity valuse are in wicrofarads (uF) unless specified otherwise, P=Pico-farads (pF) F=Farads (F)
* Resistance values are in ohms, unless specified otherwise, 1K=1, 000(OHM) , 1M=1, 000k (OHM)
EVQ21405R SW, CHL-0/BAND
EVQ21405R SW, MODE /TUN ING
SSR187-1 SW, VOLTAGE SELECTOR AX (CC, PX)
Values & Remarks No. Values & Remarks
ERDS2TJ394 1/48 = 390K ECEAQJUIOIB + 6.3¥ = 100U
ERDS2TJ102 1/48 1K ECEALEKAR? 25V. 4. 7
ERDS2TJ153 1/4¥# = 15K ECFRIELO3KR 25V 0. O1U
ERDS2TJ103 ; ERDS2TJ473 1/4¥# 47K ECBTLE2232F 2oV 0. 022U
ERDS2TJ102 ERDS2TJ103 1/44 ECBTLHLOIKBS | SOV 100P
ERDS2TJ561 ERDS2TJ102 1/40 ECEALCK100B 16V. 10
ERDS2TJ562 ERDS2TJ473 1/44 ECBTICIO3NSS | 16V 0. O1U
ERDS2TJ103 ERDS1FJ270 1/28 ECEAICK100B 16V. 10
ERDS2TJ151 ERDS2TJ102 1/4W 1K TECEA1HKO10B 50V 1U
ERDS2TJ152 ERDS2TJ221 | 1/4W 220 ECFRIE183KR 25¥ 0. 018U
ERDS2TJ222 1/4¥ 2. 2K ECBTIC1O3NS5 | 16V 0. O1U
ERDS2TJ562 1/4W TECEALCK100B 16V. 10
ERDS2TJ101 1/4W ECFRIE473KR 20V 0. 047U
ERDS2TJ103 1/40 ECBTIHIO1KBS | SOV 100P
ERDS2TJ104 1/48 ECBTIHLO2KBS | SOV 1000P
ERDS2TJ331 1/44 (GC, PX) ECEA1CU470 16V ATU
[ERDS21J473 1/48 (GC, PX) ECEALHKR47 SOV 0. 47U
ERDS2TJ821 | 1/48 ECEA1HKO10B SOV 1U
ERDS2TJ272T | 1/4W ECEALVK3R3 35Y 3. U
ERDS2TJ104 ERDS2TJ103 1/40 ; ECFRIE223KR 25¥ 0. 022U
ERDS2TJ824 ERDS2TJ224T | 1/4¥ ; ECFRIELS3KR 20 0. 015U
ERDS2TJ105T | 1/4 ECFRIE473KR 25V 0. 047U
ERDS2TJ392T | 1/4W ECQP1471J2Z SOV 470P
ERDS2TJ473 1/4W¥ 47K ECEAICK100B 16V—10U
ERDS2TJ102 1/48 1K ECBTIHI81KBS | SOV 180P
ERDS2TJ104 1/4W = 100K 1,702 | ECEALEU102B 25V 1000U
ERDS2TJ471 ERDS2TJ104 1/48 = 100K ECKRIH1022F5 1000P
ERDS2TJ182 ERDS2TJ103 1/48 == 10K ECEAICU221 220U
ERDS2TJ104 [ERDS2T473 1/48 47K ECEALEKAR? | 4.70
ERDS2TJ104 ERDS2TJ101 1/4W 100 ECKRIH1022F5 1000P
ERDS2TJ123 ERDS2TJ683 1/4¥ «68K ECKRiHL03ZF5 0. O41U
jERDS2TJ103 1/4 «10K jes | 0. 010
ERDS2TJ273 1/aW# 27K |ECKRNS1032V | 0.010 A\(GC, PX)
ERDS2TJ104 1/4¥ = 100K ECEA1W101B 100U
ECKRIHL03ZF5 Q. 01U
ERDS2TJ102 1K CAPACITORS ECEA1W101B 100U
ERDS2TJ471
470
ECKRIHIO3ZFS
|
0.
01U
ERDS2TJ333 ; ECBTIH150JC5 | SOV 15P ECEAIVK100B 10U
ERDS2TJ151 150 ECBT1C103NS5 | 16V 0. 01U ECEALVK3R3 3. 3U
ERDS2TJ100 10 ECEAQJU101B | 6.3¥ 100U ECKR1H331KB5 330P
220K ECKRIH103ZF5 | SOV 0.01U ECKR1H103ZF5 0. O10
8.2K ECEAIEK4R7 25¥. 4. ECEAQJU102 1000U
10K [ECEA1CU330 16V. 0 33U ECEALHKR22B 0. 22U
ERDS2TJ393 39K ECKRIH1O3ZF5 } 50V 0. O1U ECBT1H101KB5 100P
ERDS2TJ151 150 ; ECKRIH103ZF5 | SOV 0.01U ECBTLHL21KB5 120P
22K ECBTIHBR2KC5 | SOV 8. 2P ECBT1C392MR5 3900P
2.7K (GC, PX) ECBTIC103NS5 ; 16V 0. 01U
3.3K (GN) ECKT1H2232F SOV 0. 022U
ERDS2TJ104 100K ECBTIH150JC5 | SOV 15P
JACK (S)
RJH4405-1 ANTENA TERMINAL
RJH3201N OUTPUT TERMINAL
$JS9236 AC INLET A\ (GC, PX)
SJSD16 AC INLET AGN)
SJS9331B AC OUTLET A\ (GC, PX)
RJJ33TROL = |REMOTE OUT
EYF52BC FUSE HOLDER A
RJUOOSWO12 — | SOCKET (12P)
RJUOOSKOOEM1 | SOCKET (6P)
RJUOO3KO10M1 |SOCKET (10P)
RJTOOSWO12 — {CONNECTOR (12P)
RJTOOSKOOGM1 | CONNECTOR (6P)
RJTOO3KO10M1 |CONNECTOR (10P)
RSYOOO3M
FUSE (S)
XBA2CO4TBO = |FUSE 2509
—-20- —21-

@ EXPLODED VIEW
Ref. No. Part No. Part Name & Description Part Name & Description
CABINET PARTS
RKMO032-K CABINET
SNE2129-1 SCREW
XTBS3+8JFZ1 |SCREW
RGROO81C-Al {REAR PANEL (GC, PX)
RGROO81B-A |REAR PANEL (GN)
RGUOO3O POWER BUTTON
RMRO277 FL HOLDER
RGUO35?7-K TUNING BUTTON
RGUO358-K CHANNEL BUTTON PIN CORD
RGUO360-K MODE BUTTON AM ANTENNA ASS’ Y
SHE187-2 HOLDER HOLDER
RMGO145 RUBBER XINS+10AFZ {SCREW
SJS933 1A AC OUTLET COVER SSA272M FM ANTENNA
RFKJTKSOGC-K {CHASSIS ASS’ Y jSJp92i5 AC ATTACHMENT PLUG
SKL293 FOOT EUR64746 REMOTE CONTROLLER
XTBS26+8J SCREW EUR64747 REMOTE CONTROLLER
XTB3+Z0JFZ {SCREW T URG4EC366 BATTERY COVER
3
eofaols!l|riaonl!] eal] mlolrm|lrRe
\2 for(GC. PX) areas
RFKGTKSOGC-K |FRONT PANEL {6C, PX) RO3 BATTERY
RFKGTKSOGN-K |FRONT PANEL (GN)
——t
PACKING MATELTALS
RPGO441 CARTON BOX (GC, GN)
RPGO442 CARTON BOX (PX)
RPNO325 PAD
SPSD152 ACCESSORIES BOX
XZB52X60A012Z |PROTECTION COVER
Printed in Japan
F900603300 TW/FF/YY
-22- -23-