Pioneer SX-828 User manual

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FEATURES
FET-EOUIPPED FM FRONT END
The MOS type FETs in the 2-stage FlVl RF amplifier result
in excellent sensitivity, selectivity, signal'to-noise ratio and
a remarkable f reedom f rom cross'modulation distortion and
spu rious noise.
ADVANCED FM TUNER AND STEREO SEPA-
RATION CIRCUITS
The FM lF stage is equipped with three lCs (integrated
circuits) and an equal number of solid state ceramic filters
for stable operation and maximum selectivity. The FM MPX
decoder operates according to the highly accurate time
switching principle and is provided with an integrated cir-
cuit. The 38kHz MPX switching frequency is sharply sup-
pressed by an effective LC/RC complex filter circuit.
EFFECTIVE FM MUTING SWITCH
Unwanted, irritating inter-station noise on FM is eliminated
by the FM MUTING switch. This circuit, equipped with an
FET, also cuts out useless, too-weak FM station signals,
leaving only strong stations in high-quality reception.
AM TUNER WITH SENSITIVE FERRITE AN-
TENNA
To provide high reception sensitivity on AM. too, a ferrite
loopstick antenna and a tuned RF amplifier circuit are pro-
v ided.
PRECISION-ENGINEERED OCL AMPLI FIER
The audio amplifier is characterized by its extremely wide
frequency response, its great power bandwidth, its low dis-
tortion figures and superb signal-to-noise ratio. lt is exclu-
sively equipped with low-noise silicon transistors. All power
amplification stages are directly coupled, the output stage
is OCL and the power supply is a balanced positive-nega-
LINE VOLTAGE AND FUSE
The SX-828 is available in two models: one model
operates only on 720V, and the other does on one
of the five line voltages, 110V, 120V, 130V, 220V
and 240Y.If your SX-828 is the latter model, set
the unit to the proper line voltage by following the
procedure described below.
CHANGING LINE VOLTAGE SETTING AND
FUSE
To remove the fuse, turn the fuse cap located on
the line voltage seiector in the direction of the
arrow.
Then remove the fuse plug from the unit. Put the
fuse plug back so that the proper line voltage mark-
ing can be seen through the cut in the edge of the
plug. Whenever the position of the selector is
tive type. Loudspeakers and output transistors are protected
against shortcircuits by a fully electronic sensing circuit with
relay.
FULL CHOICE OF PROGRAM SOURCES
All standard program sources can be corinected, including
two turntables, two tape decks, and an auxiliary sound
source as well as two microphones. Low-output MC-type
phono cartridges can be used with the help of an optional
Pioneer step-up transformer which can be plugged in.
TAPE-TO-TAPE DUPLICATING POSSIBLE
With the help of two (open reel or cassette) tape decks,
copies of tapes can be made easily.
UP TO THREE PAIRS OF LOUDSPEAKERS
For easy comparison of speaker systems, or for main/remote
speaker installations, up to three pairs of speakers can be
connected and operated individually or A+8, A+C.
VERSATILE AUXILIARY CI RCUITS
These include click-stop tone controls, low and high f ilters
for reducing noise, a loudness switch for more natural
frequency response at low volume levels, a 5-position mode
switch, a dimmer switch controlling the front panel illumi-
nation, and signal strength and tuning meters for easy tuning.
PRACTICAL AND AT THE SAME TIME ELE-
GANT DESIGN
With an exceptionally long and linear frequency dial for
easy tuning. Easy, perfect tuning with signal strength meter
and center zero meter. Slightly slanted front panel for easier
dial reading. Plus the incomparable Pioneer elegance of
harmoniously matched metal , black and natural wood.
changed, check the rating of the fuse. A 1.5A fuse
is to be used for either 22OY or 240V operation
and a 3A fuse for 110V, 120V or 130V operation.
If the rating of the fuse is correct, replace cap.
FUSE REPLACEMENT
When the fuse blows, remove the fuse cap and re-
place the fuse with a new one. See Fig. 1.
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PIONEEfiI
ASSEMBLING A STEREO SYSTEM FM ANTENNA
A WORD ABOUT ROOM ACOUSTICS
The quality of reproduced sound varies according to the size
and shape of the room, the materials of walls, floor and ceil-
ing and the amount and arrangement or furniture. Too harsh
or bright a sound usually results from too many hard reflect-
ing surfaces, and/or too low a ceiling. This condition is im-
proved by having an ample carpeted area or by covering the
wall (especially that facing the speakers) with a thick curtain.
On the other hand, too many absorbing surfaces will tend to
"soak up" the sound, resulting in a certain "deadness.,, Furni-
ture may be rearranged to provide irregular reflection of the
sound. In any event, the true stereo effect is lost if the two
speaker systems are placed too far apart. This may be cor-
rected by angling them slightly toward each other or reducing
the distance between them.
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TAPE DECK
Model SX-828 is a Stereo Receiver, i.e. it combines an
AM/FM stereo tuner, a preamplifier and a power amplifier
in one unit. To obtain a complete stereo system, it can be
combined with 2, 4 or even 6 speakers, I or 2 tumtables,
I or 2 tape decks, etc. See Fig. 2.
By adding an electronic crossover network (Pioneer SF-
500, SF-700, for example) and 1 or 2 additional power
amplifiers, a 2-way or 3-way multi-amplifier system can be
built. See Fig. 3.
INSTALLATION
Do not install the SX-828 in the following places:
o In direct sunlight or near heating units.
o In damp, dusty places or where air circulation is
o In vibration-prone, unstable places.
Prepare a shelf or a stand durable enough for the
weighty SX-828 to be placed upon.
poor.
large-size,
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(A)
TURNTABLE
TURNTABLES
CARTRIDGE
TAPE PLAYER
sx-828
(B)
SPEAKER SYSTEMS
POWER AMP
AM ANTENNA
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MID
LOW
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SPEAKER CONNECTION AND INSTALLATION
LEFT
CHANNEL
o As shown in Fig. 4, connect the lead wires of the speaker
system to the supplied speaker plugs. Be sure to observe
the correct polarity and to cause no short circuit between
@ and Q.
. For the main set of speakers, use the A speaker sockets.
Connect the right-channel speaker to the socket marked
R, and the left channel speaker to the socket marked L.
o For the second (third) pair of speakers, use the B (C)
speaker sockets. Connect in the same way as for the first
pair.
NOTE: ln order to use two pairs of speakers slmultaneously (with the
SPEAKER switch set to A+B or A+C), the impedance of each unit
must be at least BSl.
INSTALLATION
Optimal stereo effect is obtained when the listener is at the
vertex of a regular triangle whose base is the line connecting
the left and right speakers (approx. Sft. to Sft. apart).
Wherever possible, install the speakers at the same height;
if the difference in height is too great, the stereo effect
deteriorates.
ANTENNA AND GROUND CONNECTIONS
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FM ANTENNA
FM broadcast signals are obstructed somewhat by mountains,
buildings, and other obstacles. Therefore, even if a station is
nearby, a high-gain antenna may be required. Select the
antenna in accordance with the following rules:
o If the receiver is to be located in a wooden building and
stations are nearby, use the T-type antenna which comes
with the SX-828. As shown in Fig. 5, connect the feeder
terminals of the antenna to the FM antenna terminals.
Stretch out the antenna proper and secure it to the ceiling
or a wall in such a manner that pickup is optimum, as
determined by listening to the station to be received.
Refer to FM RECEPTION on page 9 .
o If orientation of the T-type antenna does not eliminate
background noise, connect an FM outdoor antenna to the
antenna terminals as shown in Fig.6. Instead of a special
FM antenna, a combination FM/TV antenna may be used.
NOTES: o A varlety of FM antennas are available. Consult your dealer.
r ln ocations adjacent to heavily traveled streets, around factories or
near high vo tage power transmission ines, use of an FM antenna
may not glve the desired noise attenuatlon. ln such cases, consult
your dealer concering a coaxlal cab e feeder (75f,)) for the FM
antenna. When using coaxial cab e, make connectlons to the re,
ceiver as shown in Fiq. 7. COAXIAL CABLE
(75-ohm)
Fig. 4
Fis.5
Fis.6
r Strip the end of the
coaxial cable as shown in A.
r Loosen the screws shown
in B. lnsert the stripped
end of the coaxial cable.
r Tighten the screws. Fig.7
(+)
OUTER
SHI ELD
(BRAID}
SPEAKER
SYSTEM
DIRECTION OF STATION
AM ANTENNA

!.JIONEEFI
AM ANTENNA
o Refer to AM RECEPTION on page 9. With an AM station
tuned in, position the ferrite antenna for optimum pickup.
See Fig. 8.
o If the ferrite antenna does not give satisfying results,
stretch out the AM lead antenna (vinyl-insulated wire) and
connect it to the AM lead antenna terminal. See Fig.5.
Keep the other end of the antenna lead as high as possible.
o If the lead antenna does not give satisfactory results, erect
an AM outdoor antenna and connect it as shown in Fig. 6.
Special construction is not required: vinyl-insulated wire
may be stretched between two masts or other supports.
GROUNDING
o A ground lead is not necessily for reception. Still, from
tiie viewpoint of safety and elimination of noise, one
should be used.
CONNECTION OF TURNTABLE
Connect as follows, according to the type of cartridge used in
your turntable;
o With a moving magnet (MM) cartridge, connect the output
leads of the tumtable to the PHONO 1 MAG terminals.
The upper terminal is for the left channel, the lower ter-
minal for the right channel.
. With a moving coil (MC) cartridge, connect the output
leads of the turntable to the PHONO 2 terminals. Connect
in the same way as for the PHONO 1 MAG terminals.
NOTES: o When using a trrrntab e with an MC cartridqe, be sure to insert
a separately available PHONO INpUT transformer {pioneer pp-4}2)
into rhe socket ar the right side panel of rhe SX_B2g (Fig. 9).
. lf the plugs of the output cord of the turntable do not fit into the
PHONO input jack, replace them with pin plugs, separately available.
o With a ceramic or crystal-type cartridge , connect to the
AUX terminals.
NOTE: ln this case, set the SELECTOR switch to AUX to enjoy a record
play i ng.
PHONO INPUT
TRANSFORMER
(MODEL PP.4O2I Fis.9

PIONEEFI I
BEFORE SWITCHING THE POWER ON
Set the SPEAKERS switch to position A oniy after checking
the following points:
1. VOLUME control is at MIN.
2. MODE switch is at STEREO NORM.
3. BASS, TREBLE controls are at FLAT.
4. BALANCE control is at NORM.
5. The AUDIO MUTING switch must be OFF (not depressed).
6. Both TAPE MONITOR switches must be OFF except for
tape playback or monitoring.
FM RECE PTION
1. Set the SELECTOR switch to FM AUTO.
2. Set the FM MUTING switch to ON (not pushed).
Keep the switch OFF if the station is weak.
3. While observing the meters, tune in the desired station by
turning the TUNING knob. Best reception is attained when
the needle of the SIGNAL meter deflects to the right, and
the needle of the FM TUNING meter is at the center. When
the station is broadcasting a stereo program, the FM stereo
indicator lights, and model SX-828 operates automatically
for stereo broadcast reception.
4. When the desired station has been tuned in, turn the
VOLUME control gradually clockwise for the desired
volume. Adjust the BASS and TREBLE controls as de-
scribed.
AM RECEPTION
1. Set the SELECTOR switch to AM.
2. While observing the signal meter, tune
by turning the TUNING knob.
Best reception is attained when the
flects to the right.
3. Adjust the VOLUME, BALANCE, BASS, and TRELBE
controls for desired volume and tone.
RECORD PLAYING
1. Set the SELECTOR switch to PHONO 1 or PHONO 2.
2. Start the turntable.
3. Adjust the volume and tone with the VOLUME, BASS and
TREBLE controls.
When using an MC-type cartridge, a PHONO INPUT trans-
former (Pioneer PP-401, separately available) must be plugged
into the MC socket in the right side panel of the SX-828.
See Fig. 9 on page 4.
PROTECTOR CIRCUIT
No sound is produced for about three
seconds after the power is switched ON.
This is due to the builL-in protector circuit
which protects transistors and speakers
from damage in the event of breakdowns.
Short circuits at the speaker termj nals or
extremely low speaker impedance may re-
sult in sudden cut-off of the sound or con-
tinuous clicking of the relays.
If this occurs, turn off the power and check
the speaker connections.
NOTES:
o lf frinqe aTeas or where reception is noisy, turning
the SELECTOR switch to FM MONO will usually
reduce the noise. ln this case, however, stereo broad
casts wi I be reproduced as monophonic.
. ln some countries, model SX B28 is delivered with a
se ector swltch f or acljustlng the F M de,emphasis to
50 to 75 gsec. lf your unit is equipped with such
a switch (in the cut.out in the riqht side panel),
and if the sound seems to ack brilliance in tite
high range, move the de emphasis switch to its other
position.
NOTE:
lf good reception cannot be attained by steps I through
3 described in AM RECEPTION, the antenna may be
the cause. Refer ro ANTENNA AND GROUND
CONNECTIONS on page 3. When the station is very
near, sound distortrons rnay resuit from excessive field
strength. lf this occurs, shorten or remove the AM
antenna
NOTES:
. Set to PHONO '1 for using the turntable plugged into
the PHONO 1 jacks, and to PHONO 2 for using the
turntable plugged into the PHONO 2 jacks.
o PHONO 2 jacks accept either MM or MC type
ca rtr i dges.
in the desired station
SIGNAL meter de-
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USING A TAPE DECK
RECORDING
As shown in Fig. 10, the signal being played is always present
at the TAPE 1 REC and TAPE 2 REC jacks. Operate the
SX-828 as explained in the sections RECORD PLAYING or
FM and AM RECEPTION on page 9.
NOTE: The VOLUME, BASS and TREBLE controts on the SX 828 do not af
fectthesigna at the TAPF 1 REC and fAPE 2 REC jacks. The record-
ing level must be adjusted on the tape deck itself.
. TAPE IIJIONITOR
If the tape deck is of the 3-head type or is equipped with a
tape monitor circuit, the recording can be monitored by set-
ting the TAPE MONITOR switches (1 or 2) to ON. Both
recording and playback connections must be made.
PLAYBACK
As shown in Fig.10, setting the TAPE MONITOR switch 1 to
ON permits playback of the tape on tape deck 1.
Volume and tone can be adjusted by the VOLUME, BASS
and TREBLE controls. Playback is possible regardless of the
SELECTOR switch position.
DUPLICATING OR EDITING TAPES
With the SX-828, it is possible to record, say, an FM stereo
broadcast and then re-tape only the parts of the broadcast
one wishes to keep onto another tape.
1. Connect two tape decks as shown in Fig. 11.
2. Turn the TAPE MONITOR switch l_ to ON.
3. Play back the recorded tape on tape deck 1 and record it
onto tape deck 2.
4. The tape being recorded can be monitored by setting the
TAPE MONITOR switch 2 to ON. TAPE MONITOR switch
2 in position OFF will produce the sound from tape deck
1.
NOTE: Duplicatlng and editing is easier if the recording tape deck is equipped
wirh a PAUSE control.
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usrNG MtcRoPHONE(S)
1. Plug the microphones into the MIC jacks.
2. Set the SELECTOR switch to MIC, and the MODE switch
to STEREO NORM.
3. Adjust the volume by slowly tuming the VOLUME control
to the right.
The BASS and TREBLE controls should normally be set at
FLAT.
NOTES: o Use only high-impedance, dynamic microphones fitted with stand
ard pluss (6.4d).
r Howling may occur if the VOLUME control is turned too high or if
the microphone is too close to the speakers.
o One microphone can be used with its plug connected to either L or
R jack, setting the MODE switch at MONO L or MONO R position
respectively.
FOWER AMPLIFIER
USING A CARTRIDGE TAPE PLAYER
1. Set the SELECTOR switch to AUX.
2. Start the cartridge tape player.
3. Adjust the volume and tone controls as required.
ASSEMBLING A MULTI.AMP SYSTEM
A 2-way or 3-way multi-amplifier system can be assembled by
adding a separately available electronic crossover network
(Pioneer SF-500, SF-700, for example) and one or two addi-
tional power amplifiers (Fig. 12).
1. Remove the PRE OUTiMAIN IN plugs on the rear panel
of the SX-828 (Fig. 13).
2. Connect the input terminals of the electronic crossover
network to the PRE-OUT jacks of the SX-828.
3. Connect the LOW range output terminals of the electronic
crossover network to the MAIN IN jacks of the SX-828.
4. Connect the MID range output terminals of the electronic
crossover network to the input terminals of the power
amplifier for mid range, and the HIGH range output termi-
nals to the input terminals of the power amplifier for high
range.
NOTE: A fine selection of high-performance electronic crossover networks,
power amplifiers and suitable multi-amp speaker systems are available
from Pioneer.
(LOW-
RANGE}
sx-828 Fig. 12
F ig. 13

PIONEEFI
4.CHANNEL STEREO SYSTEM
Conventional 2-channel stereo systems are designed so that
instrumental and vocal music can be reproduced in stereo
through left and right speakers placed in front of the listener.
In contrast, the newly developed 4-channel stereo system
features a high degtee of reproduction of full dimensional
sound including the atmosphere and applause in a concert
hall in addition to stereo sound from singers and instruments.
Consequently, you can get magnificently lifelike 4-channel
sound far superior to that of 2-channel stereo.
The Pioneer 4-channel Decoder Amplifier, model QL-600A
combined with your SX-828, and two additional speakers
gives you 4-channel sound. See Fig. 14.
HOW TO USE THE 4-CHANNEL DECODER
AMPLIFIER OL-6OOA
To obtain 4-channel sound, combine the Pioneer QL-600A
with your SX-828. The QL-600A has a matrix decoder
circuit for converting a 2-channel stereo signal into a 4-
channel stereo signal plus amplifiers for driving the two
rear speaker systems. As shown in Fig. 15, the QL-600A
can be plugged into the TAPE 2 REC and TAPE 2 MON jacks
of your SX-828, giving you 4-channel sound of the REG-
ULAR or SQ MATRIX type. With the MATRIX system,
matrix recordings or FM stereo broadcasts are reproduced to
perfection. What's more, with a 4-channel stereo tape deck
(Pioneer QT-6600, for example) connected to the QL-600A
as shown in Fig. 15, discrete 4-channel tapes can be re-
produced.
Fig. 14
CARTR IDGE
TAPE PLAYER
cH. 1
LEFT
SIDE
cH.3
RIGHT
SIDE
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SIDE RIGHT
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SPEAKER SYSTEMS
TURNTABLE
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FM TUNER TRACKING
ALIGNMENT
Set is factory adjusted, no re-adjustments should normally
be required. lf re-ad.jusiment is required, observe following
9teps.
Connections
Connect FM signal generator to FM antenna terminals.
Connect V.T.V.M. to TAPE REC outputs. Adjust signal
generator output level at 20d8, apply 400H2 30%
modu lation.
Procedure
1. Turn tuning knob to extreme left and confirm that
pointer is at scale end.
2. Set signal generator frequenc.y at 87.4MH2. Adjust
oscillator coil in figure to obtain maximum output re-
ading on V.T.V.M,
3. Turn tuning knob to 106MHz, adjust signal generator
for 106MHz. Adjust oscillator trimmer capacitor to
obtain maximum output reading.
4. Adjust receiver and signal generator at 90MHz. Adjust
R F and antenna coils core to obtain maximum
output reading.
5. Retuin to 106MHz setting. Adjust RF and antenna
trimmer capacitors to obtain maximum output reading.
6. Repeat steps 2 - 5 to optimum output alignment.
OSC Trimmer Capacitor
Trim mer- Kondensator
des Lokalozillators
ABSTIMMUNG DES FM.
E M PFANGSTE ILS
Nachjustierungen durften normalerweise nocht erforderlich
sein. Gegebenenfalls wie folgt vorgehen, um die FTZ-
Bestimmungen zu erfullen.
Anschlusse
Testgenerator an UKW-Antennenanschlusse, Rohrenvolt.
messer an TAPE REC Ausgbnge anschliessen. Testgenerator
auf 20dB Ausgangspegel, 400H2 30% Modulation einstellen.
Abgleichverfahren
1. Sendereinstellung auf extrem links drehen. Zeiger muss
am Skalenende stehen.
2. Testgeneratorf requenz auf B7.4MHz einstellen.
Oszillatorspule in Abbildung so justieren, dass maximaler
Ausgangspegel am Voltmesser abgeiesen wird.
3. Sendereinstellung und festgenerator auf i06MHz
einstellen. Trimmer-Kondensator des Lokaloszillators
wiederum auf maximalen Ausgangspegel einstellen.
4. Empfanger und Testgenerator auf 90MHz einstellen.
Kerne der HF- und Antennenspulen auf maximalen
Ausgangspegel abgleichen.
5. Wieder auf 106MHz ubergehen. Trimmer-Kondensatoren
im HF-Abstimmkreis und Antennenkreis auf maximalen
Ausqangspegel justieren.
6, Schritte 2 - 5 wiederholen, bis bestmogliche Abstimm-
ung erzielt ist.
RF Trimmer Capacitors
Trimmer- Kondensatoren
im HF-Abstimmkreis
Antenna Trimmer Capacitor
Trimmer- Kondensator
im Antennenkreis
Antenna Coil
Antennenspu le
rco Ci rcR @ rcR @ rcA
Oszillatorspu le H F-Spu len
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TJIONEEfiI
CONDITIONS FREOUENTLY MISTAKEN FOR MALFUNCTION
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 has deteriorated) and (2) an
external source is adding to the unit.
When a hi-fi unit produces an unpleasant noise, it is
often assumed that the unit is faulty, but statistical
records indicate that the majority of noises pro-
SYMPTOM SUSPECTED SOURCE OF NOISE DIAGNOSIS AND REMEDY
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Continuous or intermittent
noise like jjj\jj or zzzzzz. Static (lightning) Fluorescent lamp, motor, or thermostat
may be in use in house or in the vicinity of
the house.
ln many cases, it is verV difficult to remove the source
of noise. ln order to make 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 pro-
gram.
. Poor fluorescent Iamp, motor, or electric
heater may be in use in house or near the
ho use .
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. . The frequency of an adjacent station is
interfering with that of the station being
tuned in (10kHz beat interference).
. 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 be-
tween the TV set and receiver.
Static noise (in particular,
when automobiles run
close to the house).
. White noise generated from automobile
en gi nes.
. Radio f requency sewing machine or weld-
ing 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 FM outdoor
antenna having many director elements.
Reception of FM stereo
program contains more
noise than FM mono pro-
gram.
. Note that the service area covered by an
FM stereo broadcast is about 50% o{ that
of a regular mono broadcast.
lncreasing Flvl input signal may alleviate this problem.
Use an exclusive FM outdoor antenna instead of the
indoor T-type antenna.
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Hum or buzz. When
switched to radio recep-
tion, the noise disappears.
Poor connection of shielded wire (a).
Jack connection is loose.(b)-
Line cord or fluorescent lamp is near the
shielded wire. (6).
Poor groundinq. (d).
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 le), report it to an official activity.
Output tone quality is
poor and mixed with noise.
Treble is not clear.
Stylus wears out. (a)
Record wears out. (b)
Dust adheres to stylus. (c)
Stylus is improperly mounted. (d)
Tracking force is not proper. (e)
The TRE BLE level is too high.
Check (a) through (e) and correct the condition.
Lower the TREBLE level.
WATCH FOR THE FOLLOWING CONDITIONS; THESE ARE ALSO APT TO BE MISTAKEN FOR MALFUNCTIONS.
SYMPTOM SUSPECTED SOURCE OF NOISE DIAGNOSIS AND REMEDY
Power is not tu rned on
although the power switch
is set to ON.
Fuse blows. (a)
Line plug is loose. (b) Check (a) and (b) and correct the condition.
ln playing a record, in-
creasing the volume causes
howling.
" D;stanc€ between the turntable and
speakers is too short.
"The place on which the turntable
speakers are set is unstable.
the
or
Change the distance or rearrange the installation
increase of the unit and speakers. (lnstalling the
turntable on a firm, solid stand may alleviate this
problem.)
Do not enhance the BASS sound level excessively.
duced in hi-fi acoustic units result frorn external
sources of noise: Due to the inherent high
sensitivity and the high fidelity in reproduction,
the unit amplifies and reproduces extraneous
noises, however small, into definite output noise. If
your receiver produces a noise, check according to
the following table and trace out the source of
noise for the appropriate corrective action.
r4

SPECIFICATIONS
SEMICONDUCTORS
FETs . 6
lCs ....... 4
Transi sto rs
Diodes ....36
POWER AMPLIFIER SECTION
Music PowerOutput (lHF) 27OW (4{Z\,180W (8f,))
Continuous Power Output 95 W/95 W (4'f)), lOWl70 W (8f2)
(1kHz each channel driven)
Continuous Power Output 7 5 W+75 W (4S2). 60 W+60 W (8Sr)
(1kHz both channels driven)
Power Outputin the range of 2oHzto 54W + 54W (8f,), Harmonic Distortion less
20kHz (both channels driven) than 0.5%)
Harmonic Distortion Less than 0.5% (Continuous power output)
Less than 0.03% (8Q', 35W/35W power out-
put)
lntermodulation Distortion Less than 0.5% (Continuous power output)
Less than 0.03% (8Sl, 35W/35W power out-
put)
Power Bandwidth (lHF) 10Hz to 60kHz (8Q, Harmonic Distortion
less than 0.b%)
Frequency Response sHz to 80kHz, t 1 dB
lnputSensitivity/lmpedance (1kHz, 500mV/50kfl
Continuous power output)
Speakers 4 to 16S/
Damping Factor 40 (8,f2, lkHz)
PREAMPLIFIER SECTION
Output Voltage 500mV (Rated output),4V (Max.)
Harmonic Distortion Less than 0. 1%
Frequency Response 10Hz to 40kHz, 1 1 dB
lnput Sensitivity/lmpedance (1kHz, PHONO 1 MAG 2.7mVl50kS/
for rated output) PHONO 2 MlVl 2.7mV/50kS2
MC 1 15pV/30S1
(with PHONO INPUT transformer "PP 402')
MIC 2.6mVi50k,f)
AUX 200mV/100kS/
TAPE MONITOR 1,2 200mV/100kf)
Recording Output TAPE REC 1, 2 (Pin jack) 200mV
TAPE REC (DlN connector) 35mV
BASS Control
TR EBLE Control
LOW Filter
HIGH Filter
Equalization Curve
Loudness Contour
Muting
Hum and Noise
(Short circuit, IHF network)
-10 dB, +i0 dB/100H2
-10 dB, +10 dB/1OkHz
-3 dB/60H2 (-12 dB/oct.)
-3 dB /6kHz (- 12 dB /oct. )
PHONO: RIAA S.T.D.
+10 dB/100H2, +6 dB/10kHz with Volume
Control set at -40 dB position.
-20 dB
PHONO More than 85 dB
AUX More than 95 dB
55
l5

ll
TJIONEETiI
FM TUNER SECTION
Frequency Range 87.5MHz to 108MHz
Usable Sensitivity (lHF) 1.7 1tY
Capture Ratio (lH F) 1.5 dB
Selectivity(lHF) Morethan 75dB
lmage Rejection More than 95 dB (98MHz)
lF Rejection More than 100 dB (90MHz)
Spurious Rejection More than 100 dB (98lV1Hz)
AM Suppression 50 dB
Signal-to-Noise Ratio 70 dB
Harmonic Distortion Mono: Less than O.2% (100% Mod.)
Stereo: Less than O.4V" (100% Mod.)
Tuning lndicator Signal strength type and Center tuning type
Muting Switchable to ON-OFF
Stereo Separation More than 40 dB (lkHz)
Sub Carrier Suppression More than 50 dB
Antenna lnput lmpedance 300Q balanced and 75Q unbalanced
AM TUNER SECTION
Frequency Range 525kHz to 1,605kH2
Usable Sensitivity (lHF) 10pV
Selectivity (lHF) More than 35 dB
lmage Rejection More than 85 dB (1,000kH2)
lF Rejection More than 80 dB
Signal-to-Noise Ratio More than 50 dB
Antenna Built-in ferrite loopstick antenna
MISCELLANEOUS
Power Requirements 120V 60Hz or 1 10V, 120V, 130V, 22OY and
240V (Switchable) 50-60H2
Power Consumption 370W (Max.)
AC Outlets Switched i, Unswitched 2
Dimensions (overall) 19 118 in.l485 mm (width)
5 15116 in./150 mm (height)
14-314 in.1375 mm (depth)
Weight Without package 32 lb 1oozl14.8 kg
With package 39 lb 3ozl17 .8 kg
Furnished Parts FM T-type Antenna 1
Fuse 1.5,41 1
al JtS-tine voltage model) 2
Speaker Plug 6
Hexagonal wrench 1
Polishing cloth 1
Operating instructions 1
NOTE: Specrfications and the design sublect to possible modification without notice due to
im orovements.

PIGINEEFI ELEGTFIGINIG CclFIPclFIATIclN
15-5, 4-Chorne, Ohrnoni-nishi, Ohta-ku, Tokyo, Japan
IJ.S'. PIG'NEEFI ELECTFIC'NICS GclFIPc'FIATIclN
178 comrnence Fload, Canlstadt New Jensey O7O72 U.S.A.
PToNEEFT ELECTFTGINTC (EUF|G'PE) N.V.
Meir-centen, Mein 21, aOOO Antwenp, Elelgium
PBINTFD IN .]APAN
<AR8.049.F>
( 73G07F0138