Pioneer SX-770 Service manual

V FTONEEM,' 16383
v
SOLID
AM-FM STATE
STEREO RECEIVER
M.DELSXT770
Thank you for your purchase of Pioneer's Model
You can be sure it will give you many years sx-770.
of listening
fleasure.
To get the most
manual and follow
Happy listeningl
from your SX-770, read through this
its directions.
INSTALLATION, OPERATING AND SERVICE MANUAL
lncluding PABTS LIST, CtRCUtT DIAGRAMS, TROUBLE
SHOOTING AND MOUNTING TEMPLATE. (KCW)
\;

IPIONEE.R
FEATU R ES
. LOW-NOISE FET IN FM SECTION
Coupled with the use'of a low-noise FET, the FM section is designed for a high sensitivity to obtain a srfficient signal-to-noise ratio.
O EXCELLENT SELECTIVITY
The lF amplifier stage uses a combination of a low-noise silicon transistor and a monolithic lC to attain an excellent selectivity
characteristic.
O MONOLITHIC IC FOR MPX SECTION
TheMPXsectionisanlCforastable,widefrequencybandandasharpchannel separation. AsufficientmeasureistakenagainstSCA
beat.
O HIGHLY SENSITIVE AM TUNER
Due to the silicon transistor and ferrite antenna, the AM tuner has a high and stable sensitivity.
MICROPHONE TERMINAL FOR A VERSATILITY OF USE
lnputterminalsincludeamagnetic-cartridge turntable terminal andamicrophoneterminal. Outputterminalsincludeacenterchannel
terminal and a preamplifier terminal. Thus Model SX-770 can be used in various ways.
WELL DAMPED, CLEAR SOUND
The output stage is a quasi-complementary SEPP circuit using silicon transistors. Model SX-770 reproduces welldamped, clear stereo
sound over a wide frequency range from bass to treble.
VARIETY OF ACCESSORY CIRCUITS
Accessory circuits include an FM AFC circuit, muting circuit, high-cut filter, tape monitor, loudness contour switch, etc.
o
o
o

MPIONEER
3PROGRAM INDICATOR LAMPS 45
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28 29 3CI
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2021
10 11 12 13 14 t5
22 23
16
24 2s
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Fig. 3
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FILIER MUTING AFa NoPl
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Fig. 4

KNOtsS AND SWITCHES ON FRONT PANEL
1. SPEAKERS (POWER SUPPLY AND
LOUDSPEAKER) SWITCH
This knob turns off the power supply, and selects the loud-
speaker output terminals. The function at each position of the
knob is as follows:
POWER OFF Model SX-770 is deenergized.
SPKR'S A Loudspeaker output terminals A are operative.
SPKR'S OFF Both loudspeaker output terminals A and B
are inoperative. This position is selected when
using a stereo headphone.
SPKR'S B Loudspeaker output terminals B are operative.
SPKR'S A + B Both loudspeaker output terminals A and B
are operative.
NNNN ts.81
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2. TUNING INDICATOR Fig. 5
When tuning the radio receiver to an FM or AM broadcast
station, the TUNING KNOB (4) is adjusted so that the pointer
of this meter may deflect to the maximum.
3. FM STEREO INDICATOR
When the receiver receives an FM stereo program, this lamp
I ights,
4. TUNII\G KNOB
An AM or FM broadcasting station is tuned in. While observing
the pointer of the TUNING tNDICATOR (2), set the knob for
the best receiving condition.
5. SELECTOR SWITCH
This wnitch is used to select a broadcast reception mode or the
record playing mode:
AM For reception of an AM (medium wave) broad-
cast program.
FM MONO For reception of a monophonic FM broadcast
program.
FM AUTO For reception of an FM broadcast program,
automatically s1^ritching the receiver for stereo
or monophonic mode.
PHONO/MIC Sets the equipment for playing a disc record
and microphone.
AUX Sets the equipment for reproducing the aux-
iliary inpul signal.
When the SELECTOR srivitch is operatd, the program indicator
lamp corresponding to the selected source lights.
6. PHONES
Cord plug of a stereo headphone is insened here for enjoying
stereo play without disturbing other people around. Loud-
speakers stop emitting sound then. For the stereo headphone,
PIONEER's Model SE-2P, SE-20, SE-30 or SE-SO is recom-
mended.
o When a longer cord is required for the stereo headphone, use
PIONEER's Model JB-23 extension cord separately available.
o When desiring to connect two stereo headphones, use
PIONEER's Model JB-22 "Y" cord separately arailable.
7. BASS CONTROL
As this knob is turned clockwise, bass is boosted; as turned
counterclockwise, attenuated. The control is designed to give a
flat characteristic curve when the knob is set to the middle of
the rotation range.
o This knob controls the tone quality of both right and left
channels simu ltaneously.
8. TREBLE CONTROL
Use of this treble control knob is similar to that of the BASS
CONTROL KNOB (7}.
9. HIGH FILTER SWITCH
When this snritch is turned on, hiEh-frequency noise, such as
scratch noise, will be cut off.
10. FM MUTING SWITCH
Turn on this wvitch when desiring to eliminate the noise betwep^
stations while tuning in an FM broadcast program. Keep 1-
switch turned off when tuning in a remote station. Y2
11. AFC SWITCH
Keep this wvitch turned on when listening to an FM broadcast
program. To tune in the FM broadcast station more accurately,
turn off this switch, tune in the station, then turn on the switch
when the station has been tuned in.
12. BALANCE CONTROL
When the knob is turned toward RIGHT, the center of loud-
speaker sound moves rightward; when turned toward LEFT,
leftward.
13. TAPE MONITOR SWITCH
For ordinary record play or radio reception, keep this switch in
the "oFF" position.
Set the s1^,itch to "ON" only when playing back a tape by using
a tape recorder (or tape deck) or monitoring the recording
condition of such equipment. lf the sruitch is set to the,,ON"
position when conducting disk record play or radio reception,
loudspeakers do not sound. Be careful in this respect.
14. MODE SWITCH
When playing a disk record or tape, or receiving a broadcast
prcgram, keep this sruitch in the ,,STEREO,, position. Set the
sv\ritch to "MONO" only when using a 66n6phonic turntable
or tape recorder, or reproducing a tape on which
monophonic recording is made.
15. LOUDNESS CONTOUR SWITCH
When the switch is set to the "ON" position while the receiver is
operated at a low sound volume, both bass and treble -
boosted for easy listening. When the equipment is operated - -
high sound volume, it isiecommended to keep the suitch inli6
"OFF" position.

---_-1
\'
16. MIC JACK
When using a microphone, connect the microphone output to
this jack. The loudspeakers stop emitting the sound from the
turntable, when the microphone if connected to the jack.
NOTE: Set the VOLUME control (17) to rhe MIN position
before inserting the microphone into the jack.
17. VOLUME CONTROL
The loudspeaker sound volume increases when this knob is
turned clockwise; it decreases when the knob is rotated
cou nterclockwise.
TERMINALS AND CONNEC"
TION ON REAR PANEL
18 & 19. SPEAKER SYSTEM A TERMINALS
Two speaker systems A and B can be connected to the receiver,
and they can be selectively used by operating the switch (1).
Connect the right channel loudspeaker of the first speaker
systems to terminals (18) and the left channel loudspeaker to
terminals (19).
20&21. SPEAKER SYSTEM B TERMINALS
When using two speaker systems, use these terminals (20) and
l21l for the second systems. Connect the loudspeaker for the
right channel to terminals (20) and those for the left channel to
terminals (21).
NOTE: For connection of loudspeakers to these terminals, the
plugs contained in the accessory bag must be used. For
mrrect loudspeaker connection, refer to the article
,,CONNECTION OF LOUDSPEAKER SYSTEMS'"
22. AM FERRITE ANTENNA
An AM broadcast receiving antenna accessory to the SX-770.
When using the SX-770 where the field intensity is high,
reception can be conducted simply by adiusting the direction of
this antenna without connecting an external antenna to the AM
ANTENNA TERMINAL (23),
23. AM ANTENNA TERMINAL
This terminal is provided for connecting an external AM
broadcast receiving antenna.
24. GROUND TERMINAL 1
Connect a ground conductor to this terminal for grounding the
receiver.
25. FM ANTENNA TERMINALS
An FM broadcast receiving antenna will be connected to these
terminals.
NOTE: For the most suitable FM antenna, AM antenna and
grounding, refer to the article "ANTENNA CONNEC-
TION AND GROUNDING".
26. PHONO MAGNETIC TERMINALS
Connect here the output cords of a turntable equipped with
a magnetic cartridge. The upper jack is for the left channel; the
lower jack, for the right channel. When connecting a monoph,
onic turntable, use the upper jack.
27. PHONO CER TERMINALS
Connect here the output cords of a turntable equipped with
a ceramic cartridg€. The upper jack is for the left channel; the
lower jack, for the right channel, When connecting a monoph_
onic tumtable, use the upper jack.
28. AUXILIARY TERMINALS
These facks are used when connecting the output cords of a
cartridge tape player. Also use these jacks for reproducing the
audio output of a TV receiver. The upper lack is for the left
channel; the lower lack, for the right channel.
29. GROUND TERMINAL 2
lf the turntable or other equipment to be used with the receiver
has a ground conductor, connect it to this terminal.
30. TAPE MONITOR TERMINALS
Connect to these jacks the playback output terminals (line
output) or monitor terminals of the tape recorder (or tape deck)
used with the receiver.
31. TAPE RECORDING TERMINALS
Connect to these jacks the recording input terminals (line input)
of the tape recorder (or tape deck). The signals outgoing from
these terminals cannot be adiusted with the VOLUME (17),
BASS (7) or TREBLE (8) controls.
NOTE: For correct connection to the TAPE MONITOR (30)
and TApE RECORDING (31) jacks, refer to the article
,,CONNECTION OF TAPE RECORDER",
32. TAPE RECORDING/PLAYBACK CON.
NECTOR (DIN TYPE)
Provided that the tepe recorder (or tape deck) to be used has a
DIN-type tape recording/playback connector, connection for
recording and playback (and monitor) can be completed simply
by linking the tape recorder with the receiver through the
recording/playback cord that is separately available. When this
connector is used, terminals (30) and (31) are not used.
33. LINE OUTPUT TERMINALS (CONTROL.
LED)
These are the preamplif ier output terminals. They are used when
using a power system (Model lS€0 or lS-70) of plONEER,s
integrate stereo equipment. Also, a high-power stereo system
can be composed by connecting other high-power amplifier to
these terminals.
34. OI.'TPUT TERMINAL
This is the output terminal of right and left channels mixed
together. To this terminal, a center channel loudspeaker or the
monophonic power amplif ier for a 3D system will be connected.
35. FUSE HOLDER
This is the fuse holder for glass-tube. lf it is necessary to replace
the fuse, always use a2A type fuse.
36. AC CORD
37. AC OUTLET (SWITCHED}
The power obtained from this AC outlet is turned ON and OFF
interlinked with the operation of SpEAKER SWITCH (1). A
maximum of 120VA can be supplied to the turntable or other
equipment connected.
38. AC OUTLET (UNSWITCHED)
An AC outlet having a capacity of 200 VA. This power outlet
is not interlinked with rhe operation of SpEAKER SWITCH (1).
\,

EPIONEE,R
CONNECTION OF LOUDSPEAKER SYSTEMS
When connecting loudspeakers, extract speaker connector
plug from the accessory bag and cpnnect the speaker wire
leads to the plugs as illustrated below. Be sure to connect
the positive of the leads to the positive terminal of the plug.
When the loudspeakers are connected to the plugs, insert the
right channel speaker plug into the speaker system A terminal
socket (18) and the left channel speaker plug into the speaker
system A terminal socket (19). (Refer to the connection
diagram shown in page 21.
When using two speaker systems. connect the wire leads of
the second speaker system to speaker plugs as described
above, and insert the right channel speaker plug of this
speaker system into the speaker system B terminal socket
(2O) and the left channel speaker plug into the speaker
system B terminal socket (21).
ANTENNA CONNECTION AND GROUNDING
FM BROADCAST RECEIVING ANTENNA
The field strength of FM broadcast is much attenuated behind
mountains and buildings, and in ferroconcrete buildings. This
requires to use an FM antenna of different type depending on
the area and place where the receiver will be used. Use the
most 6uitable antenna, referring to the following:
* Empioy the T-type indoor antenna accessory to the rec€iver
when using the receiver within a wooden building near the
FM radio station. Connect the end of the vertical section of
the T-type antenna to the FM ANTENNA TERMINALS
(25) as shown in Fig. 7, and expand the horizontal section of
the T-type antenna. While actually receiving broadcast,
determine the direction of the horizontal section for the best
radio reception and fix it on a wall or other place. Refer to
the article "RECEPTION OF FM BROADCAST" regarding
the determination of the antenna direction.
* When using the receiver far from the broadcasting station,
behind a mountian or within a ferroconcrete building, installs
an FM radio antenna (or FM/TV common antenna) outdoor
and connect it to the FM antenna terminals (25). The FM
antenna is various in type, having 3 to 7 elements. Select the
most suitable antenna by coniulting a nearby radio antenna
sales store. (Fig.8)
NOTE: The installation procedure of FM radio antenna is
similar to that of TV antennas. For details, follow the
instructions acmmpanying the FM radio antenna purchas-
ed.
AM BROADCAST RECEIVING ANTENNA
* When using theSX-77O near the broadcasting station or inside
a wooden building, it is unnecessary to install an AM antenna.
ln such an area. set the direction of the AM FERRITE
ANTENNA for the best radio reception while actually
listening to broadcasts. Flefer to the article "RECEPTION OF
AM BROADCAST". (Fig.9)
lf good reception cannot be attained even by properly
iliusting the direction of the AM FERRITE ANTENNA. use
the accessory AM lead wire antenna, Connect one end of the
antenna to the AM ANTENNA TERMINAL (23) and expand
the wire along a wall of the room.(Fig.7)
lf good reception cannot be attained even when the accessory
lead wire antenna is used, install an AM antenna outdoors.
Connect the lead-in wire of the outdoor antenna to the AM
ANTENNA TERMINAL (23). (Fig,8)
Fig. 6
Fig.7
Fig. 8
Fis. IY/

NOTE:
For the outdoor antenna, a standarcl AM broadcast antenna
can be formed by purchasing pVC wire f rom an electric
appliance shop and installing it 25 feet (7.5m) above the
ground for a horizontal length of 50 feet (15m), with a
feeder line 30 feet (10m1 long. These wire lengths may not
be so precise and may be as long as allowed by the place
of installation. However, the height of the horizontal section
of the antenna should not be too low to attain a good antenna
effect.
CONNECTION OF TURNTABLE
The tape recorderto be used with the receiver should have an
output terminal (line output) for connection to external
amplifier, or a tape monitor terminal.
When using a tape deck, the tape deck should have a
recording/playback preamplifier built in. plONEER,s Model
T-5O0, T-600 separately available can be used with rhe
receiver without any problems.
CONNECTION OF TAPE RECORDER (OR TAPE DECK)
OT
GROUNDING
* Grounding or non-grounding the GROUND TERMINAL 1
(24) does not much affect the performance of the receiver.
However, it is desirable to ground the terminal from the
viewpoint of safety.
* Connect to the GROUND TERIVilNAL .t l24l the ground
conductor leading to the earth,
* lf the turntable to be used with the receiver has a magnetic
cartridge, connect the output cords of the turntable to the
PHONO MAGNETTC TERMTNALS (26); if the turntabte has
a crystal or ceramic cartridge, connect the output cords to
the PHONO CER TERMINALS (27). tnsert the output cord
plug for the left channel into the uppel terminal jack, and
that for the right channel into the lower terminal jack.
When using a monophonic turntable, connect its output
cord to the upper (left channel) terminal.
NOTE:
lf the output cord plug of the turntable to be connected
does not fit the input terminal jack of the receiver,
replace the plug with the pin plug contained in the
accessory bag.
CONNEETION FOR RECORDING
Connect the recording input terminals (line input) of \he tape
recorder (or tape deck) to the TAPE RECORDING TERMI-
NALS (31 ) of the receiver. For this connection, use the cords
which are normally accessory to the tape recorder, The upper
one of the recording input terminals (line input) is for the left
channel: the lower one, f6r the right channel. When the tape
recorder is monophonic , connect its input terminal .to the
upper TAPE RECORDTNG TERMINAL (311:
CONNECTION FOR PLAYBACK
(OR TAPE RECORDING MONITOR)
Connect the playback output terminals (line output or tape
monitor terminals) of the tape recorder (or tape deck) to the
TAPE MONITOR TERIVIINALS (30). The connecting pro-
cedure is similar to that of the above "CONNECTION FOR
RECORDI NG",
USE OF TAPE REC/P.B" CONNECTOR
lf the tape recorder (or tape deck) to be connected to the
receiver has a recording/playback connector of DIN type,
connect it to the TAPE REC/P.B. CONNECTOR (32) of the
receiver. Disregard "CONNECTION FOR RECORDING" and
,,CONNECTION FOR PLAYBACK".
V

NPIONEE.R
CONNECTION OF CARTRIDGE TAPE PLAYER
RECEPTION OF BROADCAST
BEFORE TURNING ON THE SPEAKER
SWITCH OF THE RECEIVER, CHECK THE
FOLLOWING
VOLUME CONTHOL KNOB (17) is set to "MlN".
TAPE MONITOR SWITCH (13) is set to "OFF".
MODE SWITCH (14) is ser to "STEREO".
RECEPTION OF FM BROADCAST
1. Set the SELECTOR knob (5) to the "FM AUTO,'position.
2. Set the AFC sritch (11) to the OFF position.
3. While observing the pointer deflection of the TUNING
INDICATOR {2}, tune the receiver to the desired station by
using the TUNING knob (4). The best reception isattained
when the pointer of the TUNING INDICATOR (2) largelrZ
deflects rightward. lf the tuned station is broadcasting a
stereo program, the STEREO INDICATOR (3) lights. With
the SELECTOR knob (5) in this position,, monophonic pro-
grams can also be received.
4. Set the AFC wvitch {11) to the ON position.
5. When the desired station is tuned in, gently turn the
VOLUME CONTROL.knob (17) clockwise. Adiust the BASS
CONTROL (7) and TREBLE CONTROL (8) for the desired
tone.
* When the receiver is used very far from the broadcasting
station, or external noise is intensive, the noise is
suppressed and better reception is attained by setting the
SELECTOR knob (5) to the "FM MONO,' position.
When the knob is in this position, however, stereo
programs are received as monophonic programs.
6. When good radio reception cannot be attained by the above
operating procedures 1 to 5, reconsider the antenna,
referring to the arricle "ANTENNA CONNECTION AND
GROUNDING",
When using the cartridge tape player (PIONEER's Model
H-60E), connect its output to the AUXILIARY TERMINALS
(28). The connecting procedure is similar to that for turntable
connection.
RECEPTION OF AM BROADCAST
1. Set the SELECTOR knob (5) to the AM position.
2. While observing the pointer deflection of the TUNING
INDICATOR (2), tune the receiver to the desired station by
using the TUNING knob (4). The besr reception is attained
when the pointer of the TUNING INDICATOR (2) largely
deflects rightward.
3. When the desired station is tuned in, adjusr the VOLUME
CONTROL (17), BASS CONTROL (7) and TREBLE CON-
TROL (8) for desired sound volume and tone.
4. When good radio reception cannot be attained, such as
speaker sound is noisy or inferior in tone quality by the
above operating procedures 1 to 3, reconsider the antenna,
referring to the article "ANTENNA CONNECTION AND
GROUNDING". When the receiver is used very near the
broadcasting station, the field intensity is sometimes too
strong, resulting in low tone quality. lf this occurs, shorten
or remove the antenna connectd to the AM antenna for the
best radio reception.
w
Y*

PI-AY OF DISK RECORD
2.
3.
1. Set the SELECTOR knob (5) to the "PHONO" position.
When using a monophonic turntable, set the MODE switch
(14) to the "MONO" position.
Adiust the voLUME, BASS and TREBLE CONTROLS for
desired sound volume and tone,
1. Set the SELECTOR knob (5) to the "AUX" position.
2. The succeeding procedure is similar to its counterpart of the
disk turntable operation-
PLAY SACI( tlIAO
Rtc0R0il0
l'lTAD
ERASII{G IITAD
LI}IT ITIPIJT TIRMIIIAL
RECORDING AND PLAYBACK
wlTH TAPE RECORDER (OR TAPE DECK)
PLAY OF CARTRIDGE TAPE
The same signals as those emitted from loudspeakers can al-
ways be taken out from the TAPE RECORDING TERMINALS
(31) of the receiver. Operate the SELECTOR knob (5) and
MODE SWITCH (14) according to the program source to be
recorded, following the instructions described in articles ,,RE-
CEPTION OF BROADCAST" and "PLAY OF D|SK RECORD,,.
The VOLUME BASS and TREBLE controls of the receiver can-
not be used for the tape recording. The recording level should be
adjusted by the control of the tape recorder (or tape deck).
NOTE:When using a monophonic tape recorder, signals of
either left or right channel only can be recorded.
PLAYBACK
set the TAPE MONITOR SWtTcH (13) to the ,,oN,' position.
Adjust the VOLUME, BASS and TREBLE CONTROLS for de-
sired sound volume and tone.
+ When the TAPE MONTTOR SWITCH (13lis in the ,,ON',
position. the position of theSELECTOR knob (5) is unretat_
ed to the playback operation,
TAPE MONITOR
lf the tape recorder used with the receiver is provided with a
monitor circuit, monitor can be effected regardless of the tape
recorder being two-head or three-head type. Connect the tape
recorder to the receiver recording and playback terminals, By
setting the TAPE MONITOR (13) from "OFF" to ,,ON,' while
making recording, the signals applied ro the recording head can
be monitored if the tape recorder is of the two head system. lf a
three-head tape recorder is used, recorded signals can be moni-
tored immediately after recording.
\y
ITPUT
TERMIIIAI.
SllEAOS-TYPT TAPE RTCORDER
Usx- 770 Fis. 1O

IPTONEER
MODEL SX.77O IS AI-SO USABLE AS FOLLOWS
By using the center channel output terminal
1. For prevention of the hole effect
When employing a three-speaker system to prevent the
hole effect which is apt to be caused to the stereo play in
a large room, connect an additional power amplifier to
this terminal.
2. For bass compensation
A bass-compensated system can be composed by cutting
off the part higher than 250 Hz of the center channel
output with a high-cut filter.
Fig. 11
RIGHT CHANNEL CENTER CHANNEL LEFT CHANNEL
SPEAKER SYSTEM SPEAKER SYSTEM SPEAKER SYSTEM
(Ir0 [il8r, Twttlre) (]mtrD (t10 sa|sr.lwrrffR)
By connecting a microphone
The output of a microphone can be connected to the micro-
phone jack located on the front panel. The microphone can be
used simply after setting the SELECTOR Knob to the PHONO/
MIC position. When the microphone is crnnected to the iack,
however, the turntable output is disconnected from Model
sx-770.
NOTE:
1. The microphone to be used should have a high
impedance.
2. Other output cannot be supplied to the loudspeaker
terminals simultaheously with the microphone output.
By using the line out terminal
Model SX-770 can be used as an preamplifier by connecting
Model lS-80 or lS-70 Power System of PIONEER's integrated
stereo equipment to this terminal.
u
LEFT CHANNEL
POWER SYSTEM
(MODEL rS-AO, tS-70)
RIGHT CHANNELINTEGRATE
POWER SYSTEM
(MODEL tS-aO, tS-70)
Fis. 12
Fig. 13 u

ALIGN M ENT
ALIGNMENT OF FM SECTION
Disconnect output terminal of front end (3, 4) from (3) terminal of Tuner Unit
Position of Switch: Selector FM MONO
AFC.................... OFF
Mutin9.................OFF
Volume Control Setting: Fully counterclockwise
**"/ I nput Dial
Setting Output
Equipment
Connections
Alignment
Equipment
Connections Freq uency Level Adjust Remarks
Sweep Generator 10.7MHz 40dB Oscilloscope T1
i2
T3
Adlust for maximum sen-
sitivity and symmetrical
characteristics.
3't2
2Sweep Generator 10.7MHz 80dB Oscilloscope Chpnk svmmcirv af rharae -
312 teristic curve
3
Sweep Generator
1O.7MHz 40dB
Oscilloscope
-14
Adjust the primary core of
T4 so that straight por-
tion of "S" curve will be-
come the steepest and ad-
lust the secondary core so
that the center of "S" curve
will coincide with the cent-
er of the marker.
212
4Connect output terminal of front end (3, 4) to (3) terminal of Tuner Unit
5Signal Generator 90MHz 20dB
(40OHz
3oo/ol 90MHz VTVM
Oscilloscooe L3 Adjust for maximum de-
f lection.
FM antenna terminal 16
6Signal Generator 106MHz 20dB
(400H2
3oo/ol
106MHz VTVM
Oscilloscope cT3 Adjust for maximum de-
f lection.
FM antenna terminal 16
7Repeat STEPS 5 and 6 several times.
ISignal Generator 90MHz 20dB (400H2
30%l 90MHz VTVM
Oscilloscoon T1,T2
L1, L2 Adjust for
f lection. maximum de-
FM antenna terminal 16
9Signal Generator 106MHz 20dB (400H2
30%) 106MHz VTVM
_Oscilloscope _
16
cr1
cr2 Adjust for maximum de-
f lection.
FM antenna terminal
10 Repeat STEPS 8 and 9 several times

MPtONEER
ALIGNMENT OF MPX SECTION
Position of Switch: SELECTOR ........ FM AUTO
AFC.....OFF
Volume Control Setting: Fully Counterclockwise
lnput Signal: Main (L + R) 40.5kHz Deviation (60%)
19kHz Pilot 7.SkHz Deviation (10%)
ALIGNMENT OF AM SECTION
Position of Switch: Selector........AlV]
Volume Control Setting: Fully Counterclockwise
STEPS Circuit to be
Adjusted I nput Connect
VTVM Alignment
Connections Signal Adjust Reanarks
1Set the VRl (in MPX Unit) to minimum
2Separation MPX SG to
FM antenna
terminal LorR A C VTVM
8or10 L1 Adjust for minimum deflection
of the other channel
3Separation MPX SG to
FM antenna
terminal LorR A C VTVM
8orlO VRI
L1 Adjust for minimum deflection
of the other channel
4Repeat STEPS 2 and 3 several times
STEPS I nput Dial
Setti ng Output
Equipment
Connections
Alignment
Equipment
Connectors Frequency Level Adjust Remarks
1
Sweep Generator
Antenna terminal
through dummy 455kHz 50dB Point of no
i nterference
as near as
525kHz
VTVM
Oscilloscope T5
T6
T7
{!just for maximum
sensitivity and sym-
metrical characteristics.
10
2
Signal Generator
600kHz 30dB 600kHz Oscilloscope T8 Adjust for maximum
def lection
Antenna terminal
through dummy 10
3Signal Generator 1,400kH2 30dB 1,400kH2 Oscilloscope cr2 Adjust for maximum
deflection
Antenna terminal
through dummy 10
4Repeat STEPS 2 and 3 several rimes
5!igll9"rr!'_
Antenna terminal
through dummy 600kHz 30dB 600kHz VTVM
Oscilloscope Ll (Adjust
ing core) Adjust for maximum
def lection
10
bSignal Generator 't,400kHz 30dB 1.400kH2 VTVM
Oscilloscope cr1 Adjust for maximum
def lection
Antenna terminal
through dummy 10
7Repeat STEPS 5 and 6'several times It

SPECIFICATIONS
* SEMICONDUCTORS
Tuner Section
FET 1
Transistors 11
Diodes 17
* AUDIO SECTION
C ircu it
Music Power Output
Continuous Power Output
(both channel driven)
Continuous Power Output
(each channel driven)
Harmonic Distortion
Frequency Response
Power Bandwidth
Damping Factor
^ Hum & Noise (at rated
J output)
lnput lmpedance and
Audio Sensitivity
(for rated output)
Output Terminals and
Jacks
Equalization Curves
Tone Controls (each
channel)
F ilters
Loudness Contour
Audio Section
Transistors 20
Diodes, etc. 6
Single ended Push Pull
4I 7o watts total
8 Sl 52 watts total (lHF
rating)
4 {117 + 17 watts
I S2 15 + 15 watts
8 (-2 2O w/2Owatts
Less than 0.8% (at l kHz
rated output)
t3dB, from 20 Hzto
40 kHz (Over-all)
15 Hz to 35kHz (AUX)
35/8c2 (at lkHz)
MAG: better than 80dB
AUX: better than 95 dB
MAGnetic PHONO:
2.5 mv.50ka (1kHz)
CERamic PHONO:
58 mv. 100k4
MlCrophone:
SmV.1Ooko (1kHz)
TAPE MONITOR:
20omv. 100 ko (lkHz)
AUXiliary:
2o0mv.1OOko (1kHz)
Speakers: lmpedance 4
to 1 6 ohms, Stereo head-
phones jack. Simultane-
ous tape Recording jacks,
equipped with TAPE
MONITOR sruitch. Tape
recording/playback jack
(DlN type)
PHONO: RIAA
BASS: boost 1 3dB, cut
lztdB (at 50 Hz)
TREBLE: boost 1O dB,
cut 9dB (at 1 okHz)
HIGH: cut 9dB (at 1OkHz)
ON.OFF
boost 12 dB at 50 Hz,
Boost 7.5 dB at 1okHz,
with VOLUME control
set at -40 dB
FM SECTION
Circuit Front end.using F E T
Frequency Range 87.5 - 108 MHz
lH F Usable Sensitivity 1 .8 irv
lmage Rejection 60 dB (at 98 MHz)
Signal to Noise Ratio 70 dB (lHF rating)
Antenna lnput 3O0 ohms (balanced)
MULTIPLEX SECTION
Circuit
Channel Separation
AM SECTION
Circuitry
Frequency Range
IHF Usable Sensitivity
lmage Rejection
Antenna I nput
Time-switching type de-
modulator FM Mono
Stereo Automatic selec-
tion
40 dB (at 1 kHz)
Superheterodyne
525 - 1605 kHz
lOprv
55 dB (at 1000 kHz)
Built in Ferrite Loopstick
Antenna
MISCELLANEOUS
Power Requirements 117V 50 - 60 Hz
Power Consumption 117V A, 108 watts (Max)
Dimensions (overall) 16 15116"430 mm (width)
5 1'1116"145 mm (heisht)
13 314" 349 mm (depth)
Weight Without package 21 lh 2 oz 9.6 kg
With package 24lb 7 oz 11.1 kg
Specifications and the design may be subject to modif ication
without notice.

EPIONEE.R
CONDITIONS FREQI,'ENTLY MISTAKEN FOR TROUBLES
Noise: There are a variety of noises relating to the operation of
a hi-fi unit. These are generally divided into two types; {1} the
unit is faulty (a transistor or part is deteriorated) and (2) an
external source of noise gives noise to the unit.
When a hi-fi unit produces an unpleasant noise, it is often ludged
that the unit is faulty, but statistical records indicate that the
majority of noises produced in hi'fi acoustic units result from
external sources of noise. Due to the inherent high sensitivity
Further, watch the following conditions: These are also apt to be mistaken for troubles of the unit.
and the high fidelity in reproduction, the unit amplifies and
reproduces extraneous noises. however small, into definite out-
put noise. lf your receiver produces a noise, check according
to the following table and trace out the source of noise for an
appropriate corrective action.
The table includes the conditions that may be mistaken for
troubles of the unit.
Symptom Suspected Source of Noise Diagnosis and Remedy
a
o
o
co
o
o
.9
c
o
.9
J
C
o
c
3
Continuous or intermittent
noise like jjijij or zzzzzz. a Statics or listening.
o Fluorescent lamp, motor, or thermo-
stat may be used in house or in the
vicinity of the house.
ln many cases, it is very difficult to remove the source
of noise. ln order to increase the radio input larger
than the noise level, set up a good outdoor antenna
and make a complete grounding.
When a station is tuned
in, hum is mixed in the
program.
o Poor f luorescent lamp, motor, or electric
heater may be used in house or near the
house.
Reversing the line plug may occasionally alleviate this
noise problem. Usually it is very difficult to eliminate
the noise.
Hissing sound noise in AM
(medium wave) reception. o The frequency of an adlacent station is
interfering with that of the station being
tuned in (1OkHz beat interference).
a TV set is on in the same house with the
receiver.
lmpossible to remove such interference. lf the cause of
such noise is in the TV set, increase the distance
between the TV set and receiver.
Static noise in FM recep-
tion (in particular, when
automobiles run close to
the housel.
a White noises generated from automobile
engines.
a Radio frequency sewing machine or weld-
ding machine being used near your house,
ln an area surrounded by hills or high buildings, the
FM input signals are very weak. Thus the noise limiter
in the circuit loses its function. Set up an outdoor FM
antenna having many reflector elements.
!o
O
o
E
o
.g
G
o-
o
T
3
Beception of FM stereo
program contains more
noise than FM mono pro-
gram.
O Note that the service area covered by an
FM stereo broadcast is about 5fflo of that
of a regular mono broadcast.
lncreasing FM input signal may alleviate this problem.
Use an exclusive FM outdoor antenna instead of the
indoor T-antenna.
H um or buzz, When switch-
ed to radio reception, the
noise will disappear.
O Poor connection of shielded wire (a)
o Jack connection is loose. (b).
O Line cord or fluorescent lamp is near the
shielded wire. (cl
o Poor grounding. (d)
O HAM transmitting station or TV transmit-
ting station is near your house. (e)
Correct the conditions stated in (a), (b), (c) or (d).
ln case of (e), report it to an official activity.
Output tone quality ispoor
and mixed with noise.
Treble is not clear.
o Stylus is worn out. (a)
o Record is worn out. (bl
o Dust adheres to stylus. (c)
o lmproper mounting of stylus. (d)
o Stylus pressure is not proper. (e)
O The TREBLE sound level is too high.
Check (a) through (e) and correct the condition.
Lower the TREBLE level.
Y*,
Symptom Suspected Source of Noise Diagnosis and Remedy
Power is not turned on al-
though the power switch is
set to ON.
o Fuse is blown. (a)
a Line plug is loose. (b) Check (a) and (b) and correct the condition.
ln playing a record, increas-
ing the volume will cause
howling.
a Distance betvveen the record player and
the speakers is too short.
o The place on which the record player or
speakers are set is unstable.
Change the distance or rearrange the installation po-
sitions of the unit and speakers. (lnstalllng the record
player on a f irm, solid stand may alleviate this prob-
lem.) Do not enhance the BASS sound level excessively. l"*

J
PARTS
LAYOUT
(TOP VIEW)
PARTS
LAYOUT
(BOTTOM VIEW)
AUX GND IAPE IAPE REC/P.C
FM HIGI
AFC M!iING FLTER TREBL' SPEAXEF SELECTOR
BASS & POWFR SW IaH
O oo 03 O
OC
FEAD AMP !NIT
wi5 0:2
(, r-\
Ocv
r_ TINEF UN]T
l(Ol rr5or2
-@ @ @
=-@o@o@o@
POWER SIPPLY UN]]
w16 024
r!NER UN I
J.

NPIONEE.R
PARTS LIST
Symbol Description Part No.
c1
c2
c9
c10
cl1
c12
cl4
c15
c16
c17
c19
c20
c21
Ceramic
Ceramic
Mylar
Ceramic
Ceramic
E lectrolytic
Ceramic
E lectro lytic
Oil paper
Ceramic
Mylar
Mylar
E lectrolytic
47P
47P
0.003
220P
220P
220
0.04
3000
0.01
0.01
0.0018
0.0018
4.7
+80%
-20%
50v
50v
50v
50v
50v
3V
50v
50v
D.C
1.4KV
50v
50v
16V
CCDSL4TOK5O
ccDSL470K50
coMA302K50
ccDSL221 K50
ccDSL221 K50
CETG22OMF3V
cKDYZ403K50
c52-066-0
c15-001-0
c43-003-o
coMA182K50
coMA182K50
CETG4R7MFl6V
POTENTIOMETERS
cApAc r ro R, llf+r.,"t * l? h:,?"*.. u N LEss orH E RWrsE
RESISTORS ].ry-q, 1O% TOLERANCE. I/4 WATT UNLESS OTHER-
o
FM FRONTEND (W11-035)
CAPACITORS
Ceramic
Ceramic
Ceramic
Cerarnic
15P
100P
3P
o-o2
50v
50v
50v
50v
Yr
c1
c2
c3
c4
ccDs L1 50Ks0
CCDSLlOl KsO
ccDsL030cso
0KDYZ203Z50
Symbol Description Part No.
VR1
VR2 2SOkSldual, Volume 50kSldual, Balance c82-038-0 c85-052-0
WISE NOTED k : kSZ, MMS,, W : WATT
Symbol Description Part No.
R1
R2
B3
R4
R5
R6
R7\
R8\
Re/
R10/
R11
R12
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R27
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Compound
part for
REC.termina
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
1M
1M
100K
100K
68K
68K
33K
33K
3.9K
3.9K
1K
1K
39K
39K
150
150
1K
1M
100
2.2M
%v{
%w
%w
%w
%w
%w
3W
3A'
%w
%w
RFTaPS 1M-K
RF%PS 1M-K
RF'I4PS lOOK-K
R F']/.PS 1 OOK-K
RF'/4PS 68K-K
RF%PS 68K-K
w52-004-0
RF14PS 33K-K
RF%PS 33K-K
RF%PS 3R9K-K
RF%PS 3R9K.K
RF%PS 1K-K
RF%PS 1K.K
RF%PS 39K-K
RF%PS 39K-K
RO3P 150-K
RO3P 150-K
RF%PS 1K-K
RFy4PS 1M-K
RFy4PS lOO-K
RF/2PS 2R2M.K
MISCELLANEOUS
Symbol Description Part No.
FM FRONT END
TUNER Unit
MPX Unit
HEAD AMP Unit
CONTROL AMP Unit
MAIN AMP Unit
PUSH SWITCH Unit (A)
PUSH SWITCH UNit (B}
POWER SUPPLY Unit
MUTING Unit
Front Panel
Plastics Panel
Wooden Base
Dial Pulley
Dial Pulley (for Tuning Capacitor)
Dial Glass
Dial Pointer
Knob, Selector
Knob, Tuning
Knob, Volume, Balance. Bass Treble"
Output Selector
Tuning Meter
Pilot Lamp (for Dial Glass)
Pilot Lamp (for Tuning Meter)
Pilot Lamp (for FM Stereo)
Pilot Lamp Socket
Bracket for FM Stereo
Fuse 2A
Fuse Holder
Microphone Jack
Headphone Jack
Connector 5P
Jack for Speaker
Spare AC Outlet
Terminal 6P
Terminal 4P
Terminal 2P
Terminal 1P
wl 1-035-0
w35-012-B
w13-024-D
w1s-032-B
w15-033-0
w15-085-0
w15-086-0
w15-0874
w16-024-0
w18-026-0
M21-303{
M21-309-4
M52-112-O
M49-009-B
M42-O41-C
A33088-B
A31-087-A
A12-136-4
A12-139-A
412-131-A
A91-009-A
E22-O17-O
E22420-O
E22415-A
K42-003-0
A62-045-0
E21-O27-O
K96-007-0
K72-O20-O
K72-O21-B
K93{03-B
K73-003-A
K82-011-0
K22-O13-C
K22-O10-A
K2't-009-c
K21-0os-c
COILS AND TRANSFORMERS
Symbol Description Part No.
L1
L2
T1
AM Ferrite Loopstick Antenna
Choke Coil
POWER Transformer
T42-O25-O
T24-030-0
T52-1 60-C
SWITCHES
Symbol Description Part No.
S1
s2 I nput Selector
Output Seleitor s13-030-0 s11-022-4 +o.25P
+80%
20% l*

C5
c6
c7
c8
c9
c10
c11
c12
c13
c14
cr5
c16
c't7
c18
c19
c20
c21
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
0.02
18P
2P
10P
0.001
o.o2
1 00P
o.o2
0.02
6P
1P
10P
5P
15P
10P
o.o2
0.001
+80%
-20%
I5o/o
+ 0.25P
+1P
I2O/o
+80%
-20%
+80%
20%
+80%
-20%
f 0.5P
to.25P
rlP
i0.5P
+lP
+80%
-20%
t200/"
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
50v
OKDYZ203Z50
ccDsL180J50
ccDSL020c50
ccDsL100F50
CKDYYl 02M50
OKDYZ203Z50
ccDSL101 K50
OKDYZ203Z50
OKDYZ203Z50
ccDSH060D50
ccDs L01 0c50
ccDRH 100F50
ccDcH050D50
ccDcH 1 50K50
ccDcHl 00F50
0KDYZ203Z50
CKDYYl02M50
I c. I tvtytar lo.ooso l*ou. I sov I coMAs62Mso
RESISTORS
MPX UNIT (W13-024)
CAPACITORS
v
MUTING UNIT (Wl8-026)
CAPACITORS
R1
R2
R3
R4
R5
R6
R7
R8
R9
15K
15K
12K
2.2K
4.7K
3.3K
10K
10K
15K
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
RF'IlrPS15K-K
RFIlcPS15K-K
RF%PS12K.K
RF%PS2R2K.K
RFJ4PS4RTK-K
RF%PS3R3K-K
R FJlrPS10K-K
RF%PSl OK-K
RF%PS15K-K
Symbol Description Part No.
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
33K
33K
330
10K
1.8K
10K
68K
39K
4.7K
2.7K
22K
RF',!/4PS33K-K
B F lzrPS33K-K
RF'l4PS330-K
R F/aPS1OK-K
RF%PS1 R8K-K
RF,/4PS1oK-K
RFIZPS63K.K
R F74PS39K-K
R F7oPS4R7 K-K
RFlrPS2R7K-K
RF%PS22K.K
TRANSISTORS
RESISTORS
Symbol Description Part No.
R1
R2
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
Carbon film
Carbon f ilm
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
'100K
1M
47
4.7K
15K
1K
1M
10K
3.3K
10K
100
150K
RDIAPS lOOK-K
RDZaPS 1M-K
RD%PS 47.K
RD74PS 4R7K-K
RD'/cPS 15K-K
RD'/rPS 1K-K
RDI/APS 1M.K
RD'IAPS 1OK.K
RDI/aPS 3R3-K
RD74PS 1OK'K
RD7.PS 1OO-K
RD74PS 1SOK-K
DIODE AND TRANSISTORS
Symbol Description Part No.
o1
02
o3
25C870
25C870
25C870
POTENTIOMETER
Symbol Description Part No.
VRl 2KOSemi fixed, Muting level control c92-057-0
Symbol Description Part No.
D1
o1
02
o3
1S351R Vari-Cap. Diode
25K-19 FET
SE3001 Transistor
SE300'l Transistor
COILS AND TRANSFORMER
Symbol Description Part No.
c1
c2
c3
c4
c5
c6
c7
c8
^o
c10
cl1
c12
cl3
cl4
Styrol
E lectrolytic
Mylar
Styrol
Styrol
E lectro lytic
Styrol
Mylar
Mylar
E lectrolytic
Styrol
Styrol
E lectrolytic
E lectrolytic
2200P
1
o.o47
0.01
0.01
2.2
3300P
2200P
2200P
22
1500P
1 500P
o.47
o.47
l2Oo/o
l5o/o
lSYo
t5%
50v
50v
50v
50v
50v
35V
50v
50v
50v
25V
50v
50v
50v
50v
cosA222K50
CEMX lMFsOV
coMA 473M50
c15{10-O
c15010-0
CEMX2R2MF5OV
cl5-01 I -0
coMA 222K50
coMA 222K50
CEMX 22MFsOV
cosA 152K50
cosA 152K50
CEMXR4TMFsOV
CEMXR4TMFsOV
Symbol Description Part No.
L1
L2
L3
L4
T1
T2
R. F Coil
R. F Choke Coil
OSC. Coil
R.F Coil
ANT Coil
lF Transformer
RESISTORS
CEMX4RTMF'I6V
CEMX2R2MF35V
v

NPIONEE.R
R1O I Carbon film 15K
Carbon film I 1OO
INTEGRATED CIRCUIT
RF7.PS'I 5K-K
RF7.PSl OG,K c37
c38
c39
c40
Ceramic
Ceramic
Ceramic
Ceramic
0.01
0.04
1 00P
0.04
+ 10041
0%
+ 100%
-0%
+ 100%
-0"/.
25V
25V
50v
25V
CKDYZl 03P25
CKDYZ4O3P25
ccDSLl 01 K50
CKDYZ403P25
TUNER UNIT (W35.012)
CAPACITORS
C1
C2 Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
E lectro lytic
Ceramic
Ceramic
Ceramic
Mylar
Styrol
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
E lectrolytic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Mylar
Ceramic
Ceramic
Mylar
Mylar
E lectrolytic
Ceramic
E lectrolytic
E lectrolytic
Ceramic
E lectrolytic
Ceramic
o.01
0.01
5P
0.01
0.01
0.04
0.04
10
0.04
0.04
0.04
o.o1
450P
0.o4
27P
12P
560P
o.o4
4.7
0.04
0.o4
3P
68P
o.o1
0.1
0.01
0.o1
0.0047
o.oo22
o.47
1 BOP
4.7
1
0%
+100%
0%
+0.5P
+100%
0%
+ 100%
-0%
+100%
-0%
+ 100%
-0%
+ 100%
0%
+ 100%
-0%
+ 100%
0%
+ 100%
0%
+ 100%
-0%
+ 100%
0%
+ 100%
- 0%
+0.25P
+ 100%
-0%
+ t00%
-0%
+ 100%
0%
+ 100%
-0%
25V
25V
50v
25V
25V
25V
25V
10v
25V
25V
25V
50v
50v
25V
50v
50v
50v
25V
16V
25V
25V
50v
50v
25V
50v
25V
25V
50v
50v
50v
50v
16V
25V
25V
25V
50v
CKDYZl 03P25
CKDYZl 03P25
ccDsL050D50
cKDYZ103P25
cKDYZI 03P25
cKDYZ403P25
9KDYZ403P25
CEMXlOMFlOV
OKDYZ403P25
9KDYZ403P25
OKDYZ403P25
coMA103K50
cosA451 K50
cKDYZ403P25
ccDSL270K50
ccDS L1 20K50
CKDZ5P561 KsO
CKDYZ4O3P50
CEMX4RTMFl 6V
cKDYZ403P25
OKDYZ403P25
ccDSL030c50
ccDSL680K50
cKDYZ103P25
coMAl 04K50
CKDYZl 03P25
cKDYZI 03P25
coMA472K50
coMA222K50
CEMXR4TMFSOV
ccDSL18l K50
CEMX4RTMFl 6V
CSYAl MF25V
cKDYZ403P25
CEMX 1 OOM F25V
DIODES AND TRANSISTORS
v
Symbol Description Part No.
ol MPX IC MCl 304L
COlLS AND TRANSFORMERS
RESISTORS
Symbol Description Part No.
L1
L2
L3
LPF
LPF
l9kHz Coil
19kHz Coil
38kHz Coil
38kHz Filter
38kHz Filter
T75-018-A
T75{18-A
T75-019-A
T75-015-0
T75-015-0
POTENTIOMETER
Symbol Description Part No.
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R'l 3
R14
815
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
Carbon
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
ilm
'ilm
ilm
'ilm
'ilm
'itm
'ilm
'irm
'ilm
'ilm
'ilm
'ilm
'ilm
'ilm
'ilm
56K
100
8.2K
'I .8K
470
470
4.1K
15K
2.2K
470
'I .5K
1.5K
22K
470
680
2.7K
39K
33K
100
5.6K
2.7K
4.7K
100
220K
220K
22K
10K
47
820
22
1 00K
100
R F7aPS56K-K
RF%PSl OO.K
R F7.PS8R2K.K
RFl.PS1 R8K,K
R F74PS47O'K
RFIl.P547O-K
RF%PS4.7K-K
R F']/APS1 5K-K
RF7aPS2.2K-K
RFl4PS470-K
RFl4PSl R5K-K
R F7+PS1 R5K-K
RF%PS22K-K
R F7aPS470-K
R F]/APS680.K
R F1laPS2R7 K-K
RF7.PS39K-K
R F/aPS33K-K
H F':/.PS1 OO-K
R F1laPSSR6K-K
RF%PS2R7K-K
RF%PS4R7K-K
RFI/aPS100-K
R F]/APS22OK-K
RF7.PS220K-K
RF%PS22K-K
RF]/APSl OK-K
RF]/.PS47-K
R F7aPS820-K
RF%P522-K
R F'l4PS1OOK-K
RFy.PSl OO-K
Symbol Description Part No.
VR1 4.7K, Semi-fixed c92{51 -0
c3
c4
c5
c6
c7
c8
c9
c10
c11
c12
cl3
c14
c15
c16
c17
c18
c19
c20
c21
c22
c23
c24
c25
c26
c27
c28
c29
c30
c31
c32
UJJ
c34
c35 0.04
100
Syrnbol Description Part No.
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
o1
a2
o3
04
o5
o6
1S
1S
1S
1S
1S'
1S,
1S'
1S'
1S,
1S,
1S,
25(
25(
25(
2S(
uA
uA
188 Diode
188 Diode
188 Diode
188 Diode
188 Diode
188 Diode
188 Diode
188 Diode
188 Diode
l88 Diode
188 Diode
1460-4 Transistor
)461-A Transistor
)460-A Transistor
1460-A Transistor
703E t. C
703E r. C
| +0.25P ccDSL010c50 Iv

COIL AND TRANSFORMERS
Symbol Description Part No.
T1
T2
T3
T4
T5
T6
T7
TB
FM lF Transformer
FM lF Tran#ormer
FM lF Transformer
FM lF Transformer
AM lF Transformer
AM lF Transformer
AM lF Transformer
MW OSC Coil
T73430-0
T73-O31-0
T73432-0
T74{09-0
T71.026-0
T71.026-0
T72419-O
T43-009-A
TRANSISTORS
Symbol Description Part No.
o1
a2
o3
a4
2SCA71 Transistor
2SC871 Transistor
25C870 Transistor
2SC87O Transistor
CONTROL AMP
CAPACITORS uNrT (w15-033)
HEAD AMP UNtT (W15-032)
CAPACITORS
U
Symbol Description Part No.
c1
c2
c3
c4
c5
c6
c7
c8
c9
c10
c11
cI2
cl3
c14
c15
c't 6
Electrolytic
E lectrolytic
Ceramic
Ceramic
Ceramic
Ceramic
Electrolytic
E lectro lyti c
E lectro lytic
E lectrolytic
Mylar
Mylar
Mylar
Mylar
E lectrolytic
E lectrolytic
10
10
30P
30P
.100P
1 00P
o.47
o.47
33
33
0.01
0.01
0.003
0.003
100
100
t2oo/o
L2O"/o
t2oo/o
L2Oo/o
l2Oo/o
10v
10v
50v
50v
50v
50v
50v
50v
6V
6V
50v
50v
50v
50v
35V
35V
CEMXlOMFlOV
CEMXlOMFlOV
ccDSL300K50
ccDSL300K50
ccDSLl01 K50
ccDs L1 01 K50
CEMXR4TMFsOV
CEMXR4TMFSOV
CEMX 33MF6V
CEMX 33MF6V
coMA 103M50
coMA 103M50
coMA 302M50
coMA 302M50
CEMX 1OOMF35V
CEMX 1OOMF35V
RESISTORS
Symbol Description Part No.
cl
c2
c3
c4
C5
C6
c7
c8
c9
c10
c11
c12
c13
c14
cl5
c16
c17
c18
E lectrolytic
E lectrolytic
Ceramic
Ceramic
E lectrolytic
E lectrolytic
E lectro lytic
E lectrolytic
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
Mylar
E lectrolytic
E lectrolytic
o.47
o.47
10P
10P
100
100
2.2
2.2
0.003
0.003
0.01
0.01
0.01
0.01
0.1
0.1
47
47
+ 2oo/o
l2Oo/o
+20%
+20%
+ 2Oo/o
+ 2O/o
+ 2Oo/o
+ 2A%
50v
50v
50v
50v
3V
3V
35V
35V
50v
50v
50v
50v
50v
50v
50v
50v
35V
35V
CEMX R47MFsOV
CEMX R47M FsOV
ccDSLl 00K50
ccDsLl 00K50
CEMX 1 OOM F3V
CEMX l OOMF3V
CEMX2R2MF35V
CEMX2R2MF35V
coMA302M50
COMA3O2M50
coMA103M50
coMA103M50
coMA103M50
coMAr03M50
coMA104M50
coMA104M50
CEMX47MF35V
CEMX47MF35V
Symbol Description Part No.
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
1K
1K
1 50K
150K
180K
180K
120K
1 20K
390
390
470K
470K
15K
15K
2.7K
2.7K
330K
330K
27K
27K
56K
56K
2.2K
2.2K
RF74PS1K.K
RF74PSl K-K
RF%PS1sOK-K
R F%PS1 50K-K
RFl+PS180K-K
RF%PSlBOK-K
R F74PS1 20K-K
R F/4PS1 20K-K
RF7aPS390-K
R F]zaPS390-K
R F''l4PS47OK-K
RF74PS47OK-K
RF%PS1 sK-K
R F%PS15K-K
RF']/4PS2 R7K-K
R F /aPS2 R7 K-K
RF%PS330K-K
R F74PS33OK-K
RF]/4PS27 K'K
R F%PS27K.K
RF7oPSS6K-K
R F/aPSS6K-K
R F74PS2 R2 K-K
R F/rPS2 R2 K-K
R ESISTORS
Symbol Description Part No.
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon f ilm
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
Carbon film
470
470
220K
220K
22K
22K
68K
68K
8.2K
8.2K
1K
1K
100
100
10K
10K
2.7K
2.7K
4.7K
4.tK
1.5K
1.5K
RF14P547G,K
RF]/4PS47GK
RF,]/4PS220K-K
RF%PS220K-K
RF%P522K-K
RF%PS22K.K
RF%PS68K-K
R F1zrPS68K-K
RFlzaPS8R2K-K
R FIl4PS8R2K-K
RFTaPSI K-K
RF%PSl K-K
R F]/.PS1OGK
R F%PS1 OO.K
RF74PS1OK-K
R F%PS1 OK-K
RF%PS2R7K-K
RF%PS2R7K-K
R FZaPS4RTK-K
RF%PS4R7K-K
RF1/4PS1R5K-K
RF]/4PS1R5K'K
v