Marantz thirty-three Stereo Console SERVICE MANUAL

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SECTION
Introduction
Circuit Description
240-Volt Conversion
Technical Specifications
Performance Verification
Trouble Analysis
Parts List
Component Layout Diagram
Schematic
Service Notes
Change Record
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TABLE OF CONTENTS
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LIST OF ILLUSTRATIONS
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Tone Control Response Curves
Filter Response Curves
Band Pass Filter Schematic
AC Power Control Box Simplified Schematic
Test Equipment Set-up
NAB and RIAA Equalization Curves
Preamplifier Board Component Assembly Diagram Revision 1
Preamplifier Board Component Assembly Diagram Revision 2
Preamplifier Circuit and Switching Schematic
Power Supply Board Component Assembly Diagram
Power Supply Circuit Schematic
Filter/Center Channel Component Assembly Diagram
Filter/Center Channel Circuit Schematic
TABLE
1. Test Equipment Required for Servicing
PAGE
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PAGE
6
INTRODUCTION
This service manual is intended for use by authorized
warranty stations. The manual contains service in-
formation for the Marantz Model 33 Sterecphonic
Console, manufactured by the Marantz Company,
a subsidiary of Superscope Incorporated, Sun
Valley, California 91352.
Adjustment, maintenance, and troubleshooting in-
formation listed herein should be attempted only
by the experienced technician, one knowledgeable
in solid state theory and the use of test equipment.
All instructions should be read carefully and under-
stood fully before proceeding with any service.
symptoms {and their remedies) listed in the trouble-
shooting section are those which might occur in
some units. As the Marantz Company becomes
aware of other field problems, supplementary ser-
vice bulletins will be issued to all stations. To im-
prove this service, all problems (and their solutions)
not covered in this service manual should be brought
to the attention of the National Service Manager
at our Sun Valley location.
CIRCUIT DESCRIPTION
The Model 33 comprises a LOW LEVEL AMPLI-
FIER, a TONE AMPLIFIER, a X-10 AMPLIFIER,
a HEADPHONE AMPLIFIER, a HIGH AND LOW
FILTER CIRCUIT, and an QUTPUT AMPLIFIER
which operate independently for each channel
(except for Tone Controls, both channels are simul-
taneously affected by the Front Panel controls and
jacks}. The POWER SUPPLY CIRCUIT supplies
the required power to each channel from a common
source. In the following circuit description, only
CHANNEL A will be discussed; CHANNEL B is
functionally identical.
LOW-LEVEL AMPLIFIER
Program source signals from the 6 jacks (3 low level
and 3 high level} on the rear panel are supplied to
the SELECTOR switch. The 3 low-level inputs are
applied to the low-level amplifier. A section of the
SELECTOR switch selects the appropriate (NAB,
RIAA) equalization network. The low-level ampli-
fier comprises a single-ended differential amplifier
(0101, Q102), an inverter (0103), and a comple-
mentary-symmetry pair (0105, 0106). This ampli-
fier provides a gain of 40 dB. The output of the
low-level amplifier is applied to another section of
the SELECTOR switch.
This section of the SELECTOR switch applied
either the output of the low-level amplifier or one
of the high-level inputs to the TAPE MONITOR
switch.
The TAPE MONITOR switch applies either the
TAPE IN (or DUBBING IN) or program source sig-
nals to the mode switch. The DUBBING IN jack
contains a built-in switch which disconnects the
TAPE IN signals when a plug is inserted into the
jack. The signal is applied, in turn, to the MODE
switch; BALANCE control and SCOPE OUT jacks;
and VOLUME control.
The MODE switch applies the CHANNEL B signal
simultaneously to both amplifier channels when in
the “B” position; the CHANNEL A signal simul-
taneously to both amplifier channels when in the
“A” position; the CHANNEL A signal to the CHAN-
NEL A amplifier and the CHANNEL B signal to
the CHANNEL B amplifier when in the “STEREO”
position; the CHANNEL A signal to the CHAN-
NEL B amplifier and the CHANNEL B signal to
the CHANNEL A amplifier when in the “STEREO
REVERSE” position; or both CHANNEL A and
CHANNEL B signals simultaneously to both amp-
lifier channels when in the “A&B" position.
The BALANCE control is a full range graphic slide-
type control that permits full attenuation of either
channel without affecting the other channel. The
output of this control is applied to the VOLUME
control and the HEADPHONE level control. The
VOLUME control is a precision tracking graphic
slide-type control which maintains the stereo bal-
ance dictated by the BALANCE control (within
1 dB) from maximum to —65 dB below maximum.
The output of the VOLUME control is applied to
the X10 amplifier.
N
X-10 AMPLIFIER
The X10 amplifier (Revision 1) comprises an FET-
driven single-ended differential amplifier (Q106,
Q107,Q108, Q109) followed by an inverter (Q110)
and a complementary symmetry pair (Q111, Q112}.
The X10 amplifier (Revision 2) comprises a single-
ended differential amplifier (0107, 0108) followed
by an inverter (0110) and a complementary sym-
metry pair (0111, Q112). The X10 amplifier pro-
vides a gain of 20 dB. The output of the X10 ampli-
fier is applied to the TONE CONTROL switch and
the tone amplifier.
With the TONE CONTROL switch set to OUT, the
output of the X10 amplifier is apphed directly to
the DUBBING OUT jack and the filter center chan-
nel board.
TONE AMPLIFIER
The output of the X10 amplifier is applied to the
unity gain tone amplifier through a coupling capac-
itor {C121). The tone amplifier comprises a single-
ended differential amplifier (Q113, 0114), an in-
verter (0115) and a complementary-symmetry
pair (0116, 0117). The frequency response of the
amplifier is adjusted by the BASS (R18, R20) and
TREBLE (R19, R21} controls as indicated in
р, Figure 1.
+20
+10
0 db
10 100
| Figure 1. Tone Control Response Curves
With the TONE CONTROL switch set to LOUD-
NESS, audio corrections approximately equal to the
Fletcher-Munson loudness contour are inserted via
a tap at the volume control.
With the TONE CONTROL switch set to IN or
LOUDNESS, the output of the tone amplifier 1s ap-
plied to the DUBBING OUT jacks and the filter/
center channel board.
HEADPHONE AMPLIFIER
Signals from the BALANCE control are applied to
the HEADPHONE level control (R12). This control
adjusts the level of the signal applied to the head-
phone amplifier. The headphone amplifier com-
prises a series pair (0118, Q119) and a constant-
current source (0120). This amplifier provides a
gain of 22.3 dB and has a “flat” frequency response.
1K 10 KHz
+20
+10
0 db ap
dr 7
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NN
NN
20 100
Figure 2. Filter Response Curves
HIGH and LOW FILTER
The three-position HIGH and LOW filter switches
each select between two two-pole filters thus pro-
viding true double time constant functions when
placed in their active positions,
When set to OUT, the filter switches bypass the
filters and apply the X10 or tone amplifier signal to
the unity gain output buffer amplifier,
1K 10 KHz
OUTPUT AMPLIFIER
The output amplifier comprises a series pair (0201,
Q202). The output of this amplifier is applied to
the PRE-AMP OUT jacks and through a running
network to the CENTER CHANNEL VOLUME
CONTROL. This control adjusts the level of the
signal applied to the center channel amplifier. This
amplifier comprises a series pair (0205, 0706).
The output of the center channel amplifier 1s ap-
plied to the CENTER CHANNEL OUTPUT jack. \
POWER SUPPLY
The following discussion is based on the positive
supply only. The negative supply operates in an
identical manner.
AC voltage from T1 is rectified by the diode bridge
comprising CR301 through CR304. The resulting
2 Is amplified by a Darlington pair (0302,
03).
This pair is regulated by a constant-current source
(0301), Further regulation is applied by a differen-
tial amplifier (0305, 0306) which samples the
output voltage. The voltage reference for O305 is
Zener diode CR305. The adjustable voltage refer-
ence for Q306 is potentiometer R309. Overcurrent
protection is provided by Q304. Excessive current
causes an Increased voltage drop across R306,
causing Q304 to turn on and ground the input to
Q302. Overload recovery is instantaneous.
240-VAC CONVERSION
To convert the Model 33 to 240-volt operation,
perform the following steps:
1. Remove top and bottom covers.
2. Using the 240-volt AC conversion kit,
part number 105-1003-1, attach the
standoff terminal, part number 359-1002,
to the chassis {in the #6 hole next to the
fuseholder) with the #6-32 x 1/8 screw
supplied.
3. Unsolder the gray wire from the fuse
holder. Unsolder the black wire from
J5 pin 2.
4. Re-route the black wire to the compart-
ment containing the standoff terminal.
D. Solder the gray and black wire to the
standoff terminal.
6. Replace the top and bottom covers,
7. Replace the 1/4 amp, 250Y fuse in the
unit with the 1/8 amp, 260V fuse, part
number 451-1007, supplied with the con:
version Kit.
8. Remove the protective backing from the
caution label, part number 180-1008, and
place it on the top cover.
The Model 33 is now ready for 240-volt operation,
RESISTORS ARE 17204. 5%
CAPACITORS ARE 725Y, 10%
INDUCTORS ARE IN HENRYS, 5%
TRANSISTO RE ARE MOTOROLA
+ СТРИТ
+12 OR HEY
— QUTPLT
Анн
— — Saas EEE N ES ES EERE Eek Een iS 2222
Figure 3. Band Pass Filter Schematic
=== | Es de, H]———io——l MUU———— EEE SEE EEE DZ
—12Y OR —15Y
Lena SE veu
TECHNICAL SPECIFICATIONS
GAIN
Phono to main output .
Phono to recording output .
High level to main output
TOTAL HARMONIC DISTORTION
At 3 volts output — 20 Hz to 20 KHz .
INTERMODULATION DISTORTION
At 3 volts output .
FREQUENCY RESPONSE
5 Hz to 100 KHz .
20 Hz to 20 KHz .
TOTAL NOISE {equivalent input)
20 Hz to 20 KHz {phono input loaded and shielded)
DYNAMIC RANGE (S/N range}
Phono Input (equivalent noise).
CHANNEL SEPARATION {20 Hz to 20 KHz).
INPUT SENSITIVITY
Phono — for 1V output
High level — for 1V output .
INPUT IMPEDANCE
Phono . .
Tape Head
High Level
VOLUME TRACKING {max. to —65 dB from max.) .
OUTPUT LEVEL AND IMPEDANCE
Main. 2.
Center Channel
Tape Recorder .
Headphones .
TONE CONTROLS {Switch Defeatable)
Treble . ea a
Bass .
FILTERS
High (5 KHz and 9 KHz) .
Low (50 Hz and 100 Hz} .
NUMBER OF SEMI-CONDUCTORS
Revision 1.
Revision 2
POWER REQUIREMENTS .
DIMENSIONS .
WEIGHT
Unit.
Chine
60 dB
40 dB
20 dB
. Less than 0.02%
. Less than 0.02%
. +0, —1 dB
—0.25 dB
1.0 pV
. 118 dB above 1.0 uV
. 58 dB
... iM_MY
. 100 mV
47K ohms
T00K ohms
50K ohms
within 1 dB
. 10 volts, 200 ohms
‚ 5 voits, 200 ohms
. 10 voits, 200 ohms
. 10 volts, 300 ohms
. +10 dB at 10 KHz
‚ +10 d8 at 100 Hz
12 dB per octave
12 dB per octave
. 6 F.E.T's, 52 Transistors, 8 Diodes
. 2 F.E.T's, B2 Transistors, 8 Diodes
105 to 125 volts AC, 50/60 Hz, 10 Watts
. 5-3/4" High, 15-3/4" Wide, 8-3/4"' Deep
. 12 165.
1R the
TEST EQUIPMENT REQUIRED FOR SERVICING
Table 1 lists the test equipment required for servicing the Model 33 Stereo Console.
The wattmeter
ac voltmeter, and variac may be assembled as a test fixture as shown schematically in Figure 4.
Item
Manufacturer and Model Number
{or equivalent)
Use
Distortion Analyzer
Hewlett Packard, Model 333A or 331A
Measures distortion and voltage.
Audio Oscillator
Weston Model CVO-100P (Note: Less
than 0.01 per cent residual distortion
is required.)
Sine wave signal source.
Oscilloscope Tektronix Model 503, Data Model 555 Waveform analysis and trouble
shooting,
VTVM RCA Senior Volt-Ohmyst Voltage and resistance
Model MV-98C. measurements.
AC Wattmeter Simpson Model 390 Monitors primary power
consumption.
Line Voltmeter
{0 to 150 VAC)
Commercial Grade
Monitors primary power
potential.
Variable Autotransformer
(0-140 vac, 10 Amps)
Powerstat Model 1156
Adjust tevel of primary power.
Shorting Plug
Use phono plug with 600 ohms
across center pin and shell
Shorts inputs to eliminate noise
Dick up.
Bandpass Filter
Fabricate In accordance with
Figure 3
Eliminates broadband noise
when checking noise spec,
LINE SWITCH
NORMAL
| VARIABLE |
eves
|
|
AC QUTLETS
105 TO 125 VAC
50/60 Hz
ENEE
Васе
Figure 4. AC Power Control Box Simplified Schematic
DIRECT
ó 4
AC WATTMETER
G TO 150 WATTS
[ WATTMETER | =
& à
AC VOLTMETER
0 TO 150 VAC
PERFORMANCE VERIFICATION
TEST PROCEDURE
INITIAL SET-UP
Connect test equipment as shown in Figure 5. The
following procedure is to be followed each time the
equipment is tested and after every repair.
INITIAL SWITCH POSITIONS
Line Switch Off
Variac 0 Volts
Bandpass Qut
MODEL 33
Selector Aux 1
Mode Stereo
Tone Control in
(Bass and Treble: O dB)
Tape Monitor Qut
Volume Maximum
Balance Centered
Filters Out
Headphone Maximum
Power Off
Center Channel Maximum
Volume
AC POWER
CONTROL AUDIO
BOX (5) OSCILLATOR
pr 7
A.
Power Consumption
1. Set line switch to ON.
2. Set Model 33 POWER switch to ON.
3. Slowly increase variac setting until fine
voltmeter reads 120V.
4, AC wattmeter should indicate less than
b watts. If wattmeter indicates more than
b watts, stop test and proceed to Trouble
Analysis section of this manual.
Functional
1. Using audio oscillator, oscilloscope, and
voltmeter section of distortion analyzer
perform functional check of all controls
and jacks.
2. Verify normal operation before proceed-
ing with remaining tests,
NOTE: The following tests
should be performed for both
channels.
DISTORTION
ANALYZER
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OSCILLOSCOPE
ee
——s—
O BANDPASS
—, FILTER
Pe
CONNECT
AS
REQUIRED
AC
POWER
MODEL 33
Figure 5. Test Equipment Set-Up.
a
Hum and Noise
1.
2.
3.
4
5.
6.
ri
8.
Set SELECTOR switch to PHONO 1.
Insert shorting plugs in PHONO 1 jacks.
Set bandpass switch to IN.
Using distortion analyzer, measure out-
put voltage. Voltage should be less than
1.5 mv.
Set SELECTOR switch to TUNER.
Insert shorting plugs In TUNER jacks.
Measure output voltage. Voltage should
be less than 60.v.
Set bandpass switch to QUT.
Maximum Output
1. Set selector switch to AUX 1.
2. Connect AUDIO OSCILLATOR to
AUX 1 input jacks.
3. Setoscillator frequency to 1 KHz £20 Hz.
4. Adjust oscillator output until just before
oscilloscope indicates clipping.
5. Measure output voltage. Voltage must be
greater than 8V.
Balance
1. Reduce oscillator output until distortion
analyzer voltmeter indicates 0 dB on
channel A.
2. Measure channel B output. Voltage
should be Ô dB +2 dB.
NOTE: Adjust for as close a
balance as possible for the
remaining tests.
Frequency Response
1.
Tape Head
a. Set SELECTOR switch to TAPE
HEAD.
b. Connect oscillator to TAPE HEAD
input jacks.
c. Set oscillator frequency to 500 Hz.
d. Adjust oscillator level for 0 dB out-
put at distortion analyzer.
e Set oscillator frequency to 50 Hz.
Analyzer should indicate +17.5 dB
+1 dB, Figure 6.
f. Set oscillator frequency te 10 KHz.
Analyzer should indicate -15.5 dB
+1 dB, Figure 6.
Phono
a. Set SELECTOR switch to PHONO 1.
b. Connect oscillator to PHONO 1
input jacks.
с. Set oscillator frequency to 1 KHz.
d. Adjust oscillator level for 0 dB at
distortion analyzer.
e. Set oscillator for 30 Hz. Analyzer
should indicate +18.61 dB +1 dB,
Figure 6,
f. $*Setoscillator for 15 KHz. Analyzer
should indicate -17.17 dB +1 dB,
Figure 6.
High Level
a. Set SELECTOR switch to AUX 1.
b. Connect oscillator to AUX 1 input
jacks and set frequency to 1 KHz.
Cc. Adjust oscillator level until analyzer
indicates 0 dB.
d. Set oscillator for 20 Hz. Analyzer
should indicate 0 dB +0, —0.25 dB
e. Set oscillator for 20 KHz. Analyzer
should indicate 0 dB +0, -0.25 de
f. Set oscillator for 60 KHz, Analyzer
shouid indicate 0 dB +0, -0.25 dB
Low Filter
a. Set oscillator to 50 Hz.
b. Set LOW filter switch to 50. Ana-
lyzer should indicate-3 dB + 1.5 dB.
с. Set oscillator to 100 Hz.
d. Set LOW filter switch to 100. Ana-
lyzer should indicate-3 dB +1.5 dB.
e Set LOW filter switch to OUT.
High Filter
a. Set oscillator to 5 KHz.
b. Set HIGH filter switch to 5K. Ana-
lyzer should indicate-3 dB +1.5 dB,
Set osciliator to 10 KHz.
d. Set HIGH filter switch to 9K. Ana-
lyzer should indicate-5 dB +1.5 dB.
e. Set HIGH filter switch to OUT.
+2
Tone Controls
vet oscillator to 1 KHz, Ensure
tone control pots are in center
position and analyzer indicates О dB.
Adjust tone contro! pots to maxi-
mum boost (upper position).
Set oscillator to 100 Hz. Analyzer
should indicate +10 dB +2 dB.
Set oscillator to 10 KHz. Analyzer
should indicate +10 dB +2 dB.
Adjust tone control pots to maxi-
mum cut {lower position).
Analyzer should indicate -10 dB
+2 dB.
Set oscillator to 100 Hz. Analyzer
should indicate -10 dB +2 dB.
Adjust tone control pots to mechan-
ical center,
Set oscillator to 1 KHz. Analyzer
should indicate O dB.
Set TONE CONTROL switch to
OUT. Analyzer should indicate
O dB +1 dB.
Loudness
a.
b.
Set oscillator to 100 Hz. Set
TONE CONTROL switch to IN.
Adjust oscillator level for O dB at
analyzer.
с, Set VOLUME control to minimum.
Set TONE CONTROL switch to \
LOUDNESS.
d. Adjust volume control for an indi-
cation on analyzer of -20 dB.
e. Set oscillator to 10 KHz. Analyzer
should indicate -20 dB +2 dB.
f. Set oscillator to 1 KHz. Analyzer
should indicate -27 dB +2 dB.
g. Set TONE CONTROL switch to IN.
Set VOLUME control to maximum.
G. Harmonic Distortion
1.
2.
ыы
je
Set oscillator to 20 Hz,
Adjust oscillator level for 3V on both
channels. (Adjust BALANCE control if
necessary.)
Set analyzer to SET LEVEL - MANUAL.
Adjust sensitivity vernier for full scale
deflection {0-1 scale).
Set analyzer to DISTORTION. Analyzer
should indicate less than 0.01%.
Set oscillator to 20 KHz.
Repeat steps 3 through 5.
Analyzer should indicate less than 0.01%.
NOTE: Adjust R127 as neces- %
sary to meet 20 KHz spec.
igure §. NAB and RIAA Equalization Curves
20 ——
T4
10
``
= ^^ RIAA
d N №
В
N
4% TN
og
| к.
NAB =
10 hu N,
=
Moy A N.
10 Hz 100 Hz 1 KHz 10 KHz 100 KH:
TROUBLE ANALYSIS
The trouble analysis procedure that follows contains typical trouble symptoms and their remedies. Other
field problems will be covered through service bulletins {supplementary to this manual) which will be
issued to all stations. The schematic diagrams (Figures 9, 11, and 13) contain typical voltages taken at
various test points in a properly operating amplifier.
NOTE: Performance Verification is necessary following any repair.
SYMPTOM PROCEDURE
1. Excessive Line Consumption a. Check for shorted rectifier CR301 through
CR304
Check capacitors C301, C302, C305, C306
¢. Check for shorted transistors Q301, Q302,
Q303, 0305 through Q308, 0311, Q312.
Check for open Q304 and Q310
d. Check for shorted T1
2. No Line Consumption a. Check line cord, fuse
b. Check for open transistors 0301, 0307, 0303,
Q305 through Q309, 0311, 0312. Check for
shorted 0304, 0310.
с. Check for open rectifiers CR301 through
CR304
d. Check for open T1
3. High Hum and Noise Level a. Check filter capacitors C301, C302, C304,
C30b, C306, C308
4. High Distortion or Improper Clipping a. Check FET's 0106, 0109
b. Check setting of DC OFFSET ADJUST poten-
trometer R127
PARTS LIST
ee Description a
Number
A1 Pre-Amp Bd Comp Assy 200-1015-1
A2” Pre-Amp Bd Comp Assy 200-1015-3
A3 Filter/Ctr Chan Comp Assy 200-1016-1
A4 Pwr Supply Bd Comp Assy 200-1010-1
C1 Cap. 0.01 mfd, 1400V 383-1006
C101 Cap. Elect. 10 mfd, 16V 381-1015
C102 Cap. 3600 pfd, 10%, 300V 385-1021
C103 Cap. 1600 pfd, 10%, 300V 385-1020
C104 Cap. 0.01 mfd, 10%, 100V 385-1032
C105 Cap. 680 pfd., 5%, 300V 385-1003
C106" Cap. Elect. 16 mfd, 10V 381-1004
C107 Cap. Elect. 10 mfd, 16V 381-1011
C108 Cap. 0.005 mfd, 20%, 100V | 383-1004
C109 Cap. 1 mfd, 20%, 250V 386-1008
C110 Cap. Elect. 10 mfd, 16V 381-1015
C111 Cap. 0.03 mfd, 20%, 100V 383-1002
C112 Cap. Elect. 10 mfd, 16V 381-1011
C113 Cap. 0.1 mfd, 10%, 250V 386-1000
C114 Cap. 680 pfd, 5%, 300V 385-1003
C115 Cap. 0.03 mfd, 20%, 100V 383-1002
C116 Cap. 100 pfd, 10%, 500V 385-1001
C117 Cap. Elect. 100 mfd, 6.4V 381-1006
C118 Cap. 0.001 mfd, 10%, 160V |385-1023
C119 Cap. Elect. 10 mfd, 16V 381-1015
C120 Cap. 0.01 mfd, 10%, 100V 385-1032
C121 Cap. Elect. 10 mfd, 16V 381-1015
C122 Cap. 0.01 mfd, 10%, 100V 385-1032
C123 Cap. 1000 pfd, 10%, 500V 385-1007
C124 Cap. Elect. 10 mfd, 16V 381-1011
C125 Cap. 680 pfd, 5%, 300V 385-1003
C126 Cap. 0.001 mfd, 10%, 100V |385-1023
C127 Cap. Elect. 2.2 mfd, 35V 381-1023
C128 Cap. Elect. 1 mfd, 25V 381-1017
C129 Cap. Elect. 32 mfd, 10V 381-1016
C130 Cap. Elect. 10 mfd, 16V 381-1011
C131 Cap. Elect. 32 mfd, 10V 381-1016
Ree Description E
Designator Mumbai
C132 Cap. 39 pfd, 10%, 500V 385-1035
C133 Cap. 150 pfd, 10%, 500V 385-1002
C134 Cap. 150 pfd, 10%, 500V 385-1002
C135 Cap. 270 pfd, 10%, 500V 385-1006
C201 Cap, Elect., 10 mfd, 16V 381-1015
C202 Cap. 0.47 mfd, 10%, 250V 386-1006
C203 Cap. 4700 pfd, 10%, 300V 385-1030
C204 Cap. 1600 pfd, 10%, 300V 385-1020
C205 Cap. Elect. 32 mfd, 20%, 10V | 381-1016
C206 Cap. Elect. 10 mfd, 16V 381-1015
C207 Cap. 0.47 mfd, 10%, 250V 386-1006
C208 Cap. 4700 pfd, 10%, 300V 385-1030
C209 Cap. 1600 pfd, 10%, 300V 385-1020
C210 Cap. Elect. 32 mfd, 20%, 10V | 381-1016
C211 Cap. Elect. 1 mfd, 25V 381-1017
C212 Cap. 1 mfd, 20%, 250V 386-1008
C213° Cap. 150 pfd, 10%, 500V 385-1002
C214" Cap. 150 pfd, 10%, 500V 385-1002
C301 Cap. Elect. 470 mfd, 40V 381-1022
C302 Cap. Elect. 470 mfd, 40V 381-1022
C303 Cap. 0.1 mid, 10%, 250V 386-1000
C304 Cap. Elect. 680 mfd, 25V 381-1009
C305 Cap. Elect. 470 mfd, 40V 381-1022
C306 Cap. Elect. 470 mfd, 40V 381-1022
C307 Cap. 0.1 mfd, 10%, 250V 386-1000
C308 Cap. Elect. 680 mfd, 25V 381-1009
CR101 Diode, Rectifier 460-1009
CR301 Diode, Rectifier 460-1006
CR302 Diode, Rectifier 460-1006
CR303 Diode, Rectifier 460-1006
CR304 Diode, Rectifier 460-1006
CR305 Diode, Zener 459-1002
CR306 Diode, Zener 459-1002
DS1 Lamp, Miniature Bayonet 482-1003
F1 Fuse, 1/4A, 250V 451-1005
L101 Choke, 0.3 Hy 147-1003
Marantz
wees Description e
Number
L201 Choke, 19.6 Hy 147-1004
L202 Choke, 5 Hy 147-1002
L203 Choke, 0.25 Hy 147-1001
L204 Choke, 19.6 Hy 147-1004
L205 Choke, 5 Hy 147-1002
L206 Choke, 0.25 Hy 147-1001
0101” Transistor, NPN 462-1020-1
Q102” Transistor, NPN 462-1020-1
Q103” Transistor, PNP 461-1013
Q104 Transistor, PNP 461-1006-2
0105 Transistor, NPN 462-1011-2
Q106” Not used 463-1000
0107” Transistor, NPN 462-1020-2
0108” Transistor, NPN 462-1020-2
Q109” Not used 463-1000
Q110 Transistor, PNP 461-1006-3
Q111 Transistor, PNP 461-1006-2
0112 Transistor, NPN 462-1011-2
Q113” Transistor, NPN 462-1020-3
Q114” Transistor, NPN 462-1020-3
Q115 Transistor, PNP 461-1006-3
Q116 Transistor, PNP 461-1006-2
Q117 Transistor, NPN 462-1011-2
Q118 Transistor, NPN 462-1010-2
Q119 Transistor, PNP (H FE > 100) | 461-1012
0120 Transistor, NPN 462-1016
Q201 Transistor, NPN 462-1010-2
Q202 Transistor, PNP 461-1006-1
Q203 Transistor, NPN 462-1010-2
Q204 Transistor, PNP 461-1006-1
0205 Transistor, NPN 462-1010-2
0206 Transistor, PNP 461-1006-1
Q301 Transistor, FET 463-1001
Q302 Transistor, NPN 462-1011-1
0303" Transistor, NPN 462-1019
0304 Transistor, NPN 462-1011-1
"emos Description Part
Designator Noob
Q305 Transistor, NPN 462-1011-1
Q306 Transistor, NPN 462-1011-1
Q307 Transistor, FET 463-1000
Q308 Transistor, PNP 461-1006-1
0309” | Transistor, PNP 461-1014
Q310 Transistor, PNP 461-1006-1
0311 Transistor, PNP 461-1006-1
Q312 Transistor, PNP 46 1-1006-1
R1 Res. C/F, 56K, 1/2W, 5% 433-5562
R2 Res. C/F, 56K, 1/2W, 5% 433-5562
R3 Res. C/F, 270K, 1/2W, 5% 433-6272
R4 Res. C/F, 56K, 1/2W, 5% 433-5562
R5 Res. C/F, 56K, 1/2W, 5% 433-5562
R6 Res. C/F, 270K, 1/2W, 5% 433-6272
R7 Res. C/F, 8.2K, 1/4W. 5% 434-4822
R8 Res. C/F, 8.2K, 1/4W, 5% 434-4822
R9 Res. Var., Slide, Dual, 100K 420-1010
R10 Res. Var., Slide, Tandem, 150K | 420-1009
R11 Res. C/F, 270K, 1/2W, 5% 433-6272
R12 Res. Var., Tandem 100K 420-1012
R13 Res. C/F, 270K, 1/2W, 5% 433-6272
R14 Res. C/F, 270K, 1/2W, 5% 433-6272
R15 Res. C/F, 270K, 1/2W, 5% 433-6272
R16 Res. C/F, 270K, 1/2W, 5% 433-6272
R17 Res. C/F, 270K, 1/2W, 5% 433-6272
R18 Res. Var., Slide, 100K 420-1003
R19 Res. Var., Slide, 100K 420-1003
R20 Res. Var., Slide, 100K 420-1003
R21 Res. Var., Slide, 100K 420-1003
R22 Res. Var., 100K, 2W 420-1006
R23 Res. C/F, 3.3K, 1/4W, 5% 434-4332
R24 Res. C/F, 3.3K, 1/4W, 5% 434-4332
R101 Res. C/F, 2.2K, 5%, 1/2W 433-4222
R102" | Res. Prec. 130K, 2% 1/2W 432-6131
R103 Res. C/F, 68K, 5%, 1/4W 434-5682
R104 Res. C/F, 2.2 MEG, 10%, 1/4W | 434-7223
a
Marantz
urs Description Part
Number
R105 Res. C/F, 4.3K, 5%, 1/4W 434-4432
R106 Res. C/F, 3.9 MEG, 10%, 1/4W | 434-7393
R107 Res. C/F, 7.5K, 5%, 1/2W 4334752
R108 Res. C/F, 27K, 5%, 1/2W 433-5272
R109 Res. C/F, 30 ohm, 5%; 1/2W 433-2302
R110" | Res. C/F, 470 ohm, 5%, 1/2W | 433-3472
R111 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R112 Res. C/F, 1 MEG, 5%, 1/4W 434-7102
R113 Res. C/F, 10K, 5%, 1/2W 433-5102
R114 Res, C/F, 820 ohm, 5%, 1/2W 433-3822
R115 Res. C/F, 15K, 5%, 1/2W 433-5152
R116 Res. C/F, 15K, 5%, 1/2W 433-5152
R117 Res. C/F, 820 ohm, 5%, 1/2W | 433-3822
R118 Res. C/F, 100 ohm, 5%, 1/2W | 433-3102
R119 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R120 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R121 Res. C/F, 220 ohm, 6%, 1/2W | 433-3222
R122 Res. C/F, 47 ohm, 5%, 1/2W 433-2472
R123 Res. C/F, 100 ohm, 5%, 1/2W | 433-3102
R124 Res. C/F, 2.2K, 5%, 1/2W 433-4222
R125 Res. C/F, 470K, 5%, 1/2W 433-6472
R126 | Not used
R127" | Not used
R128 Res. C/F, 100 ohm, 5%, 1/2W | 433-3102
R129 Res. C/F, 30 ohm, 5%, 1/4W 434-2302
R130 Res. C/F, 27K, 5%, 1/2W 433-5272
R131 Not used
R132" Not used
R133 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R134 Res. C/F, 15K, 5%, 1/2W 433-5152
R135 Res. C/F, 1.3K, 5%, 1/2W 433-4132
R136 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R137 Res. C/F, 10K, 5%, 1/2W 433-5102
R138 Res. C/F, 820 ohm, 5%, 1/2W | 433-3822
R139 Res. C/F, 15K, 5%, 1/2W 4335152
Reference ; Marantz
Designator Description cher
R140 Res. C/F, 100 ohm, 5%, 1/2W | 433-3102
R141 Res. C/F, 15K, 5%, 1/2W 433-5152
R142 Res. C/F, 820 ohm, 5%, 1/2W | 433-3822
R143 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R144 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R145 Res. C/F, 220 ohm, 5%, 1/4W | 434-3222
R146 Res, C/F, 30 ohm, 5%, 1/2W 433-2302
R147 Res. C/F, 47 ohm, 5%, 1/2W 433-2472
R148 Res. C/F, 33K, 5%, 1/2W 433-5332
R149 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R150 Res. C/F, 10K, 5%, 1/2W 433-5102
R151 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R152 Res. C/F, 33K, 5%, 1/2W 433-5332
R153 Res. C/F, 27K, 5%, 1/2W 433-5272
R154 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R165 Res. C/F, 30 ohm, 5%, 1/4W 434-2302
R156 Res. C/F, 30 ohm, 5%, 1/2W 433-2302
R157 Res. C/F, 39K, 5%, 1/2W 433-5392
R158 Res. C/F, 66 ohm, 5%, 1/2W 433-2562
R159 Res. C/F, 10K, 5%, 1/2W 433-5102
R160 Res. C/F, 820 ohm, 5%, 1/2W | 433-3822
R161 Res. C/F, 15K, 5%, 1/4W 434-5152
R162 Res. C/F, 15K, 5%, 1/4W 434-5152
R163 Res. C/F, 820 ohm, 5%, 1/2W | 433-3822
R164 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R165 Res. C/F, 220 ohm, 5%, 1/4W | 434-3222
R166 Res. C/F, 47 ohm, 5%, 1/4W 434-2472
R167 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R168 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R169 Res. C/F, 47K, 5%, 1/2W 433-5472
R170 Res. C/F, 100K, 5%, 1/2W 4336102
R171 Res. C/F, 470 ohm, 5%, 1/2W | 433-3472
R172 Res. C/F, 56 ohm, 5%, 1/2W 433-2562
R173 Res. C/F, 10K, 5%, 1/2W 433-5102
R174 Res. C/F, 220 ohm, 5%, 1/2W | 433-3222
Marantz
Reference | Part
Designator Description Muelas
R175 Not used
R176 Res. C/F, 100K, 5%, 1/2W 433-6102
R177 Res. C/F, 10K, 5%, 1/2W 433-5102
R178 Res. C/F, 56 ohm, 5%, 1/2W | 433-2562
R179" | Value to be determined in
test, 5%, 1/2W 433-XXX2
R201 Res. C/F, 6.8K, 5%, 1/4W 434-4682
R202 Res. C/F, 3.3K, 5%, 1/4W 434-4332
R203 Res. C/F, 5.6K, 5%, 1/4W 434-4562
R204 Res. C/F, 10K, 5%, 1/4W 434-5102
R205 Res. C/F, 100K, 5%, 1/2W 433-6102
R206 Res. C/F, 2.7K, 5%, 1/2W 433-4272
R207 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R208 Res. C/F, 56 ohm, 5%, 1/2W | 433-2562
R209 Res. C/F, 100 ohm, 5%, 1/2W | 433-3102
R210 Res, C/F, 27K, 5%, 1/4W 434-5272
R211 Res. C/F, 6.8K, 5%, 1/4W 434-4682
R212 Res. C/F, 3.3K, 5%, 1/4W 434-4332
R213 Res. C/F, 5.6K, 5%, 1/4W 434-4562
R214 Res. C/F, 10K, 5%, 1/4W 434-5102
R215 Res. C/F, 100K, 5%, 1/2W 433-6102
R216 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R217 Res. C/F, 2.7K, 5%, 1/2W 433-4272
R218 Res. C/F, 66 ohm, 5%, 1/2W | 433-2562
R219 Res. C/F, 100 ohm, 5%, 1/2W | 433-3102
R220 Res. C/F, 27K, 5%, 1/4W 434-5272
R221 Res. C/F, 100K, 5%, 1/2W 433-6102
R222 Res. C/F, 7.5K, 5%, 1/2W 433-4752
R223 Res. C/F, 1K, 5%, 1/2W 433-4102
R224 Res, C/F, 2.7K, 5%, 1/2W 433-4272
R225 Res. C/F, 56 ohm, 5%, 1/2W | 433-2562
R226 Res. C/F, 100 ohm, 5%, 1/2W | 433-3102
R227 Res. C/F, 1K, 5%, 1/2W 433-4102
R301 Not used
R302 Res. C/F, 10K, 1/2W, 5% 433-5102
Z
Pe Description Ke
Number
R303 Not used
R304 Res. C/F, 470 ohm, 1/2W, 5% | 433-3472
R305 Res. C/F, 1.2K, 1/2W, 5% 433-4122
R306 Res. C/F, 5.6 ohm, 1/2W, 5% | 433-1562
R307 Res. C/F, 1.2K, 1/2W, 5% 433-4122
R308 Res. C/F, 820 ohm, 1/2W, 5% | 433-3822
R309 Res. Var. 1K, 1/4W 420-1013
R310 Res. C/F, 510 ohm, 1/2W, 5% | 433-3512
R311 Not used
R312 Res. C/F, 4.7K, 1/2W, 5% 433-4472
R313 Not used
R314 Res. C/F, 470 ohm, 1/2W, 5% | 433-3472
R315 Res. C/F, 1.2K, 1/2W, 5% 433-4122
R316 Res. C/F, 5.6 ohm, 1/2W, 5% | 433-1562
R317 Res. C/F, 1.2K, 1/2W, 5% 433-4122
R318 Res. C/F, 820 ohm, 1/2W, 5% | 433-3822
R319 Res. Var. 1K, 1/4W 420-1013
R320 Res. C/F, 510 chm, 1/2W, 5% | 433-3512
51 Switch, Rotary (Selector) 453-1000
52 Switch, Lever (Monitor) 453-1011
s3 Switch, Rotary (Mode) 453-1012
54 Switch, Lever (Tone) 453-1008
55 Switch, Lever (Lo Filter) 453-1009
56 Switch, Lever (Hi Filter) 453-1009
57 Switch, Snap (Power) 453-1010
T1 Transformer, Power 440-1004
XF1 Fuseholder (W/mtg hole) 367-1001
XQ101 | Socket, Transistor 368-1002
xa102” | Socket, Transistor 368-1002
Panel, Front 134-1004-1
Knob, Large 174-1001
Knob, Small 174-1004
Knob, Center Channel 580-1000
*Denotes a change in some serial numbers. See ECN
change record,
gure 7. Preamplifier Board Component Assembly Diagram — Revision 1
rts
EA
Ele!
Le EA
Lr
=
DETAIL A
SIDE VIEW SHOWN
NOTES: UNLESS OTHERWISE SPECIFIED
A
A
А
A
CT, G10, S119. C121, C127 AND C128 POLARIZATION
15 DETERMINED ВУ HOLDING THE COMPONENT WITH
THE MULTIPLIER DOT FACING THE WICWER - IN THIS
POSITION THE POSITIVE LEAD IS ON THE MIGHT,
V2 AWG TOI QUE WIRE ON COMPONENT SIDE.
INSULSTOR TO SE INSTALLER RETWFFS SOARO AND
TRANSISTORS, 119 AND 0120 ONLY.
SUS WIRE JUMPER BETWEEN H10M AND F105 INSTALLED
ONLY (M BOARDS MARKER AM 1151014, REV. A.
ASSEMBLY CONFIGURATION SHOWN 15 TYPICAL F
BOARDS FABRICATED FROM any 1151014, REV
О108 АМП 0109 ARE TO BE COLOR MATCHED
RANTE.
HEAD GF SCREW TO BE ON CIRCUIT SIDE OF BECA
0101 THAU 0118 ASE TO SE INSTALLED WITH
CUTTING TRANSISTOR LEADS,
WHEN REQUIRED, R178 WILL BE SELECTED AT TI
AND MÉEUNTE D AS SHOW IN DETAIL A
WALUE OF C108 MAY AE 32 MFO 2 HV WHEN BELT
BY TEST.
PARTIAL VIEW — REMAINDER SAME AS REVISION 1
NOTES:
1 ASSY 200-1015-3 IS IDENTICAL TO ASSY 200-1015-1 EX-
CEPT THAT Q101 AND Q102 (AND TRANSISTOR SOCKETS)
ARE MOUNTED ON CIRCUIT SIDE OF BOARD.
2 ASSY NOTES FOR REVISION 2 ARE THE SAME AS FOR
REVISION 1 EXCEPT NOTE 6 IS NOT APPLICABLE.
Figure 8. Preamplifier Board Component Assembly Diagram — Revision 2
+ SELECTOR
+ | si
== == 1 — —B[o ——so E — as CI A ны — — ны ZZ — a —— — — — | —— — A 0 0 0 o DDD DD A — —
mo TAPE |, 1 i [assy 200-1015-1 A1 (TOP)
HEAD | or — VW ®
| ? J | cio : :
PHONO 1 mui RATO! : 5
m o pH : :
I
2 q | Ц 22K 56 ;
r
nz PHONO| ($ | L
LE
1
JE TUNER ©
? )
1
JB. AUX 2 ©
2
Hr Aux! ©
2 0107
us : 5967706
Е R121 É “1137
220 5 ;
2 618 — 128 “139 a
: = Ta SEC wn :
= —> "13 =
E слов Cg a Ë
= 0.005 FI a ще Е. Ea"
< &
a
=
=
x=
=
SCOPE 1
“O ur o
2
TAPE 1
2 our ©
7 ,
1
BALANCE
HEADPHONE
VOLUME
TAFE 1
44 our o 3
2 3
SCOPE 1 R1Z-R
27 our Q ни 3
q ZW
= 1
TAPE Г 4
A
CHANNEL 6 INFUTSOUTPUTS
2 | 1 ASSY 200-1015-3 A2 (BOTTOM) *1437 To —
| ' 5
ns or o = | cin
10 ut RATO!
LE 16V 2.2K
1 gin
— 0.03
424 0109 voov
TUNER o
1 ]
ns aux? (O)
PCLLI
gga 8
aux 1 (OY
a 1 у
0107
*1337
> nie с133 e RIZ6 eee
2 22ME6 15 SR mn
> 14W 500V "1306 25K
i | “A
с112
1041 R128
16V 108
VW
L101
cia
1 260v nl
rev
— —l — ны —] — — — — — —— 2222222; DDD — — — ыы DU ны ——]z — DL] DDD A — A A A A ms > a a — ны —
NOTES: UNLESS OTHERWISE SPECIFIED
AN CIRCUIT COMMON TO REVISIONS 1 AND 2 IS SHOWN IN
igure 9. Preamplifier Circuit and Switching Schematic ECN chose e à DO
CUITRY ADDED BY ECN 1396 IS SHOWN IN DASHED
(---) LINES.
E >>
HATE
56
A
A176
100K
-Hi
R177
> 10K
0170
SE607!
des
—147,
Ri
56
AL
"Г
Ë
+ TO A310
Ritt
10K
de
14.7
178
56
A
ALL RESISTORS ARE 1/2W; VALUES ARE
CAPACITOR VALUES EXPRESSED DECIMALLY ARE IN
MICRO-FARADS; OTHERS ARE IN PICO-FARADS.
F DENOTES PRECISION FILM RESISTORS.
IN OHMS.
A
— Zo o — — o A A din os es ns E — dt d dt A
REF. DES. | BETA (Hr) | NOISE LEVEL
(MILLI-VOLTS)
Q101 >400 0.17 OR LESS
Q102 >400 0.17 OR LESS
Q103 >150
Q104 100-149
Q105 100-149
Q107 >400 >0.17/<0.2
Q108 >400 >0.17/<0.2
0110 >150
Q111 100-149
0112 100-149
0113 200-399 0.2 TO 0.3
Q114 200-399 0.2 TO 0.3
Q115 >150
Q116 100-149
Q117 100-149
Q118 100-149
Q119 >100
WHEN REQUIRED, RESISTOR R179 WILL BE SELECTED
IN TEST AND MOUNTED IN PARALLEL WITH RESISTOR
R177.
BY TEST.
VALUE OF C106 MAY BE 32 MFD @ 10V WHEN REQUIRED
NOTES: UNLESS OTHERWISE SPECIFIED
AN
A
A
А
(22 AWG TC) BUS WIRE
ASSEMBLY CONFIGURATION SHOWN IS TYPICAL FOR
BOARDS FABRICATED FROM A/W 115-1010, REV. A.
HEATSINK ON Q303 AND Q309, SHALL NOT TOUCH THE
CASE OF Q302 AND Q308 RESPECTIVELY.
0301, 0302, Q304 THRU Q308 AND 0310 THRU Q312
TO BE INSTALLED WITHOUT CUTTING TRANSISTOR
LEADS.
Figure 10. Power Supply Board Component Assembly Diagram
GREEN 3
GREEN
RED
BLUE
WHITE
a
260%
GRAY
Г BROWN
T1
(REF)
2408
HOHE -LIP
(REF INFO ONLY)
Ci
0.07
100%
os ES DI DIA | ean O SL See EER o CE E EET EE" SEER em SESE SESS EEE ——— = ===> ===
305
470
404
C306
Lee 470
dou
0304
301 MPSATO
2N5461
L
R30B
b 820
c304
CR305 Zr 680
ых +24 IN763A 25V
| 16,3
C301 СЗО cans
470 — 470 — o
| дом ADV | 250
0310 VW
азот MPSATO
MPETOS :
4
A318
820
a CR306 ed
1 IN753A 4
25
R319
NOTES: UNLESS OTHERWISE SPECIFIED
A
A
ALL RESISTORS ARE
1/2W; VALUES ARE
CAPACITOR VALUES ARE IN MICRO-FARADS.
Figure 11. Power Supply Circuit Schematic
IN OHMS.
“SEE CHANGE RECORD
REF. DES. | BETA (Hp) | NOISE LEVEL
(MILLI-VOLTS)
Q302 40-99
2304 40-99
0305 40-99
0306 40-99
0308 40-99
0310 40-99
0311 40-99
0312 40-99
NOTES: UNLESS OTHERWISE SPECIFIED.
sare 12. Filter/Center Channel Component Assembly Schematic
ZA
A
A
POLARITY OF C201, C206 AND C211 IS INDICATED BY
HOLDING CAPACITOR WITH COLORED DOT TOWARD
VIEWER. POSITIVE LEAD IS ON THE RIGHT.
0201 THRU Q206 ARE TO BE INSTALLED WITHQUT
CUTTING TRANSISTOR LEADS,
ASSEMBLY CONFIGURATION SHOWN IS TYPICAL FOR
BOARDS FABRICATED FROM A/W 115-1015, REV. N/C.
HEAD OF SCREW TO BE ON CIRCUIT SIDE OF BOARD.
== === === === === ===> ===> === O O — O CO O N N! Sl Ma — O O O O сни —
15
TOM JE | 10
ÿ
i O
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0 05
Н221
| R212 H713 200 TK
Loa 3.3K SEK
19.6h 1/48 11
1 ALL RESISTORS ARE 1/2W; VALUES ARE IN OHMS. REF. DES. | BETA (HF, ) | NOISE LEVEL
2 CAPACITOR VALUES EXPRESSED DECIMALLY ARE IN (MILLI-VOLTS)
MICRO-FARADS; OTHERS ARE IN PICO-FARADS.
Q201 100-149
Q202 40-99
Q203 100-149
Q204 40-99
Q205 100-149
Q206 40-99
Figure 13. Filter/Center Channel Circuit Schematic
Ea Catia.
MARANTZ CO. INC. =» P.O BOX 99 « SUN VALLEY, CALIFORNIA * 91357
A WHOLLY-OWNED SUBSIDIARY OF SUPERSCOPE INC.. SUN VALLEY, CALIFORNIA 91357
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