Marantz SM500DC User manual

SERVICE
MANUAL
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MARANTZ DESIGN AND SERVICE
Using superior design and selected high grade components, MARANTZ Company has created the ultimate in stereo sound.
Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for
which it is famous.
Parts for your MARANTZ stereo are generally available within 72 hours throughout the nation via a toll-free line to our
National Parts Depot in California. The sales professionals who take your call immediately refer to their own desk top com-
puter terminal and can quickly determine the availability and price information you require. If for some reason, your order
should exceed our available stock, we usually can instantly provide an alternate replacement part or current delivery infor-
mation. When the order is placed and confirmed, the computer simultaneously generates “hard copy” orders at the
distribution center. As hard copies come directly from the computer to the national parts depot, your requested stock is
assembled and prepared for shipment and placed on the first available carrier for delivery to you. ,
ORDERING PARTS
Phone orders will eliminate mail delays, and we encourage the use of this method. If you order by mail, use MARANTZ parts
order forms which are available from our National Parts Depot located at the following address:
SUPERSCOPE NATIONAL PARTS DEPARTMENT
20525 Nordhoff Street
Chatsworth, California 91311
Phone: [phone]
1-213-998-9333
The following information must be supplied to eliminate delays in processing your order:
. Complete address.
. Complete part numbers.
. Complete description of parts.
. Model number for which part is required (indicate MARANTZ).
. Account number (for account customers only).
OPWN =
Direct consumers will be provided with the current retail prive quotation on available parts in order to advise them of the cost
of the parts and shipping.
OVERSEAS PARTS ORDERING
Parts may also be ordered from the following overseas addresses:
U.S.A. CANADA AUSTRALIA JAPAN
Marantz Company, Inc. Superscope Canada, Ltd. Marantz Australia ; Marantz Japan, Inc.
National Service Dept. 3710 Nashua Drive 32 Cross Street 3622 Kamitsuruma
P.O. BOx 577 Mississauga , Brookvale, NSW 2100 Sagamihara-shi
Chatsworth, CA91311 Ontario, Canada L4V1M5 Australia Kanagawa, Japan
U.S.A.
.
EUROPE
;
Marantz Europe S.A. Marantz France Marantz Audio U.K., Ltd. Marantz Germany GMBH
326 Avenue Louise Bte 32. +4 rue Bernard Palissy 193 London Road Max-Planck-Strasse 22
1050 Brussels 92600 Asnieres Staines, Middlesex : 6072 Dreieich
Belgium France United Kingdom West Germany
Marantz Belgium Marantz Svenska A.B. Marantz Norske A.S.
45 rue Auguste Van Zande Franzengatan 6 Refstadalleen 13
1080 Brussels : 10425 Stockholm Oslo 5
Belgium Sweden ‘Norway
All of the above locations are fully equipped to take care of your total service needs. Because various countries have differing
configuration requirements, it is necessary that you contact the service facility in your particular country. In the event that
there is no service location listed for your country, please contact the nearest facility for the necessary assistance.

TABLE OF CONTENTS
SECTION PAGE
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4. TEST EQUIPMENT REQUIRED FORSERVICING .........0. 0... ccc ccc eee eee eee ees 2
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5.2 Power Meter Alignment Procedure... .. 2... cece eee eee eee e ween een enneae 2
6. DIAGRAM AND COMPONENT LOCATIONS ............. 0... ccc cece cece cece eee e nen eeeaas 3
6.1 Main Amp & Power Supply Assembly (P700) Schematic Diagram and Component Locations .............. 3
6.2 Speaker Switch Assembly (PS00) Schematic Diagram and Component Locations ...................0-. 5
6.3 Headphone Assembly (PWO00) Schematic Diagram and Component Locations ................ ores 5
6.4 Lamp Assembly (PZ00) Schematic Diagram and Component Locations .................c0ceeeuuees 5
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MODEL SM500 DC STEREO POWER AMPLIFIER
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1. ‘INTRODUCTION
This service manual was prepared for use by Authorized
Warranty Stations and contains service information for
the Marantz Model SM500DC Stereo Power Amplifier.
Servicing information and voltage data included in this
manual are intended for use by knowledgeable and ex-
perienced personnel only. All instructions should be
read carefully. No attempt should be made to proceed
without a good understanding of circuitry operation.
The parts list furnishes complete ordering information.
Most replacement parts should be ordered from the
Marantz Company. However, a simple description is
included for parts which can be obtained locally.
3. BLOCK DIAGRAM
FEEDBACK
NETWORK
POSITIVE
PREDRIVER DRIVER
BIAS
CIRCUIT
DIFFERENTIAL
INPUT
NEGATIVE
PREDRIVER DRIVER
DC SERVO
AMPLIFIER
PR AR REGIE
POSITIVE
LOAD LINE
LIMITING
PROTECTION
CIRCUIT
NEGATIVE
2. P.W. BOARDS
As can be seen from the circuit diagram, the chassis of
Model SM500DC consists of the following units. Each
unit mounted on a printed circuit board is described with-
in the square enclosed by a bold dotted line on the circuit
diagram.
1. Main Amp & Power Supply............-
mounted on P.W. Board P700
2. Speaker Switch. ... mounted on P.W. Board PSOO
3. Head Phone...... mounted on P.W. Board PWOO
4, Lamp.......... mounted on P.W. Board PZ00
POWER
METER
POSITIVE CIRCUIT
POWER
SPEAKER
PROTECTION
RELAY
HEAD
TO RCHO—— || PHONES
2
NEGATIVE
OWE, SPEAKERS
SYSTEM 1
TO
RCH
SPEAKER
SYSTEMS
SYSTEM 2
TO
RCH

4. TEST EQUIPMENT REQUIRED FOR SERVICING
This table lists the test equipment required for servicing for the Model SM500DC Stereo Power Amplifier.
Item
Manufacturer and Model No.
Distortion Analyzer
Audio Oscillator
AC Voltmeter
Sound Technology Model 1700B
Use
Distortion Measurements
Sinewave and squarewave signal source
voltage measurements (AC)
; Tektronix Model T932
Oscilloscope oa
Philips Model 3232
Circuit Tester
Waveform analysis and trouble shooting and
ASO alignment
Trouble shooting
DC Voltmeter
Fluke Model 8000 “‘Digital’’ Simpson
Model 313, Triplet Model 801
Voltage measurements (DC)
AC Wattmeter Simpson Modei 1379 Monitors primary power to amplifier
AC Ammeter
Commercial! Grade (1 ~ 10 A)
Monitors amplifier output under short circuit
condition
Line Voltmeter Simpson Model 1359
Monitors potential of primary power to
amplifier ,
Variable Autotransformer
Superior Electronic Co.,
Powerstet Model 116B-10A
Shorting Plug
Output Load
(8 ohms, +0.5% 100 W)
Output Load
(4 ohms, +0.5% 100 W)
Use phono plug with 600 ohm
across center pin and shell
Commercial Grade
Commercial Grade
Adjusts level of primary power to amplifier
Shorts amplifier input to eliminate noise
pickup
Provides 8-ohm load for amplifier output
termination
Provides 4-ohm load for amplifier output
termination
Output Load Capacitor
(0.5 mfd)
Mylar
Provides capacitive load for instability checks
AC Power Control Box
Optional Item. Fabricate in
accordance with Figure 1
Monitors and controls primary power for
amplifier
Amplifier Output Load Box
CL
Optional Item. Fabricate in
accordance with Figure 2
Provides various amplifier loads and can
monitor shorted output
5. ALIGNMENT PROCEDURES
5.1 Idling Current Alignment Procedure
Where to be adjusted: R733 and R734
Adjusted value: 20 mV (20 mA ea.)
’ Procedure
1 With the input of the set placed in Open, set the
power switch to ON.
2 Adjust semi-fixed resistance, R733 and. R734, so
that the voltage of both the ends of R741 and R742
may become 20 mV after 10 seconds.
5.2 Power Meter Alignment Procedure
Where to be adjusted
Lchannelee-< Gees atk eee Ga, ae dee eek RX74
R: channelnns sh. SSNS ees tele eees RX08
Procedure
1 Connect the load resistance 892 to the speaker ter-
minal of the set.
2 Connect the 1 KHz from SG to input.
3 Set the power switch of the set to ON, increase the
SG output, and adjust the speaker output to be-
come 50W — 822 (20V).
4 Adjust RX07 and RX08 so that the meter may indi-
cate 50W (82).

DIAGRAM AND COMPONENT LOCATIONS
6.
6.1 Main Amp & Power Supply Assembly (P700) Schematic Diagram and Component Locations.
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6.2 Speaker Switch Assembly (PS00) Schematic Diagram and Component Locations
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6.3 Headphone Assembly (PW00) Schematic Diagram and Component Locations
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[Avr 330(1W) |
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6.4 Lamp Assembly (PZ060) Schematic Diagram and Component Locations
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7. EXPLODED VIEW AND PARTS LIST
@ [C01-99] Front Panel
002B
006B
011B
© (U) for U.S.A.
® (N) for Europe
® (A) for Australia
© (F) for Japan
1232063400 | Front Panel Assembly 208H154060.| Knob, Push Switch
123Z063410 | Front Panel Assembly 51300306B0 | P.H. Tapped Screw P3x6
1232063010 | Escutcheon, Front Panel 51300306B0 | P.H. Tapped Screw P3x6
1232063110 | Escutcheon, Front Panel
403H067010 | Cap
403H063020 | Escutcheon
208H259010 | Bushing, Push Switch

e@ [C02-99] Lid. (Top and Bottom Cover)
PART NO.
208H257010
51260408Z0
51260408U0
2991259010
1232257010
403H057010
51280308B0
DESCRIPTION
Lid, Top Cover
B.T. Screw B4x8
B.T. Screw B4x8
Bushing
Lid, Bottom Cover
Leg
B.H. Tapped Screw B3x8
PART NO.
51280308B0
213H118020
213HO56020
2932861110
2578861010
e@(U) for U.S.A.
e (N) for Europe
e (A) for Australia
e (F) for Japan
DESCRIPTION
B.H. Tapped Screw B3x8
Spacer
Buffer
Label Top Cover
Label Bottom Cover

@ [C03-99] Rear Panel
1232160010
1232160020
1232160030
51280308U0
51280308U0
51280308U0
51280308U0
51280308U0
51704059B0
1455259030
= =
SP BNONNA CP BNNNA
PK BNNNA SK
2| 2 51420308T0O
OO9E 2| 2 51280308U0
0O12E | 1/1] 1] 1 | 2112265010
014E 1] 1 4581861010
9511101070
Bracket Rear Panel
Bracket "
Bracket ns
B.H. Tapped Screw B3x8
B.H. Tapped Screw B3x8
B.H. Tapped Screw B3x8
B.H. Tapped Screw B3x8
B.H. Tapped Screw B3x8
Spec. Set Screw
Bushing
O.C.H. Tapped Screw O3x8
B.H. Tapped Screw B3x8
Indicator
Label
Label UL
OO8E (A.N)
OO5E
OO2E
aa
e(U) for U.S.A.
e (N) for Europe
e (A) for Australia
e (F) for Japan
PART NO. DESCRIPTION
FS10400500
FS10200800
FS10400600
YJ08000310
YJ08000290
YJ08000300
YJ04000560
YLO3010250
BY05080010
YP04000590
YC0O1900070
2C01805030
ZC02006030
YC01800190
Fuse 4A 250V
Fuse T2A 250V
Fuse 4A 250V
Jack, Fuse Holder
Jack, Fuse Holder
Jack, Fuse Holder
Jack, AC Outlet
Terminal, GND
Voltage Selector
Plug, Inlet
A.C. Power Cord
A.C. Power Cord
A.C. Power Cord
A.C. Power Cord

@ [P01-99] Front Chassis and General Parts
004G
021G7
O10F
$001
010E
(NA)
6001
014G
015G

e(U) for U.S.A.
e(N) for Europe
e (A) for Australia
e(F) for Japan
Q’TY
PART NO. DESCRIPTION ‘i aes PART NO. DESCRIPTION
403H120010 | Insulator 1 | 141 | 1232160090 | Bracket
2 | 2] 2 | 51280306B0 | B.H. Tapped Screw B3x6
1/1/1417 | 1232105010 | Front Chassis 3] 3] 3 | 51260308B0 | B.T. Screw B3x8
4) 4] 4] 4] 51100306A9 | B.H.M. Screw B3x6 1|1 | 1 | 1232160080 | Bracket
1/1) 1/7) 1 | 1232160120 | Bracket 2 {212 |51280306B0 | B.H. Tapped Screw B3x6
3} 3] 3] 3 | 51280308B0 | B.H. Tapped Screw B3x8 2|2]2 | 51280306B0 | B.H. Tapped Screw B3x6
1]1}11] 1 | 213H274010 | Reflector
2| 2) 2) 2 | 1232160070 | Bracket 1|141 | 1232267010 | Heat Sink
2} 2) 2] 2 | 51280308B0 | B.H. Tapped Screw B3x8 33} 3 | 51280306B0 | B.H. Tapped Screw B3x6
3 | 3] 3] 3 | 213HO56010 | Buffer 2 {2 | 2 |51100310A9 | B.H. M. Screw B3x10
2/2] 2] 2) 213H118010 | Spacer 4|4 | 4 |51480310A9 | F. Washer Screw F3x10
1/1/11] 1 11232160100 | Bracket
1}141 | ¥TO2020210 | Terminal
4/4] 4] 4 | 51280308B0 | B.H. Tapped Screw B3x8 1|1]1 | YT03040190 | Terminal
2/2) 2] 2 | 51280306BO | B.H. Tapped Screw B3x6 1 |111 | ¥YT03040190 | Terminal
1/1]11] 1 | 2912259020 | Bushing
71 }1 11 |¥J01001400 | Jack, Headphone
1|1]1]1 | 1232160040 | Bracket, Left
1/4/11] 1 | 1232160050 | Bracket, Right DK18103530 | Ceramic 0.01uF
1/1111] 1.] 1232160060 | Bracket, Center 1}1 DK18103840| Ceramic 0.01uF
4/41{4] 4] 51280306B0 | B.H. Tapped Screw B3x6 1 |DK18103850; Ceramic 0.01ynF
4|4j]| 4] 4 | 51280306B0 | B.H. Tapped Screw B3x6
1/1/11] 1 |123Z160110 | Bracket TS19617010 | Power Transformer
4/4] 4] 4 | 51260408U0 | B.T. Screw B4ax8 1/1 TS19617020 | Power Transformer
2/|2| 2) 2 | 51280306B0 | B.H. Tapped Screw B3x6 1 | TS19617030 | Power Transformer
2 | 2] 2] 2 | 51280306B0 | B.H. Tapped Screw B3x6
1]1)1] 1 | 213HO56030 | Buffer 1} 1/1 | 1M12255010 | D.C. Meter
SP01010420 | Push Switch, Power
1/1 SP01010390 | Push Switch, Power
1 | SP01010430 | Push Switch, Power
10

@ {H01-99] Packing Materials
010S
; / OOST (F)
001S
002T
OO3T (U)
004T (A)
013S
@
(U)
for
U.S.A.
e@(N)
for
Europe
e
(A)
for
Australia
e
(F)
for
Japan
=|
1232801010 | Packing Case
1232801020 | Packing Case
1232801030 | Packing Case
001H809010 | Cushion
9090909040 | Polyethylene Sheet
2918107350 | Sheet
2918107390 | Sheet
9526019010 | Serial No. Card
9526019060 | Serial No. Card
9526019030 | Serial No. Card
125Z851010 | Instructions
1252851310 | Instructions
1252851110 | Instructions
1232851020 | Instructions
1232851320 | Instructions
9631000110 | Guarantee Card
2818854020 | Guarantee Card
1232856010 | Circuit Diagram
2205851040 | Instructions
2976851040 | Instructions
2225813010 | Envelope
9631000090 | Guarantee Card
2976813020 | Enveiope
9650000030 | S. Station Card
9526019040 | Serial No. Card
2731821010 | Silicagel

@ (U) for U.S.A.
e@(N) for Europe
@ (A) for Australia
e (F) for Japan
8. ELECTRICAL PARTS LIST
PART NO. DESCRIPTION PART NO. DESCRIPTION
DESIG. july] ale
P700-MAIN AMP & POWER
SUPPLY CIRCUIT BOARD
YK213H1310] P.W. Board, Main Amp &
Power Supply
2Z213H1310 | P.W. Board Assembly
GD05152140 1.5kQ
GD05152140 1.5kQ
GD05391140 3902
GD05391140 3902
GD05433140 43kQ
GD05433140 43kQ
GD05392140 3.9kQ
GD05392140 3.9kQ
GD05124140 120kQ
GD05124140 120k.
P700-CAPACITORS
EA10605030 | Elect 10uF 50V
EA10605030 | Elect 10uF 50V
DK16821300 | Ceramic 820pF +10%
DK16821300|Ceramic 820pF +10%
EA10605030 | Elect 10uF 50V
EA10605030 | Elect . 10nF 50V
EQ10601630 | Elect 10uF 16V
£Q10601630 | Elect 10uF 16V
EQ10601630 | Elect 10uF 16V
EQ10601630 | Elect 10uF 16V
ee ee ee re ee eG soe ewe ean mo or Seer oo ee oe os
a ee ee eG
GD05473140 47kQ
GD05473140 47kQ.
GD05103140 10k2
GD05103140 10k2
GD05153140 15kQ
GD05153140 15kQ
GD05333140 33kQ
GD05333140 33kQ
GD05473140 47kQ
GD05473140 47kQ
DD15100300 | Ceramic 10pF +5%
DD15100300 | Ceramic 10pF +5%
DD15220300 | Ceramic 22pF +5%
DD15200300 | Ceramic 20pF +5%
EA10605030 | Elect 1OuF 50V
EA10605030 | Elect 10uF 50V
DK16101510 | Ceramic 100pF +10%
DK16101510 | Ceramic 100pF +10%
DK16101510 | Ceramic 100pF +10%
DK16101510| Ceramic 100pF +10%
ee ee er eo ee ee ee ee ee ee ee ee ee a a ee ey
GD05820140 82Q
GD05820140 822.
RA05010050] Trimming 4702 (B)
RA05010050] Trimming 4702 (B)
GD05102140 1kQ
GD05102140 1kQ
GD05820140 822
GD05820140 822 —
GD05151140 1502
GD05151140 1502
DF17473520 | Film
DF17473520 | Film
EA10705030 | Elect
EA10705030 | Elect
EA10705030 | Elect
0.047uF+20%
0.047uF+20%
100nF SOV
100uF SOV
100uF SOV
ee ee ee ee ee ee ee ee ee ee ee a ee re re Ce ee ee
NE10472050 0.472
EA10705030
EB82805010
EB82805010
Elect
Elect
Elect
100uF 50V
8200uF 50V
8200uF 50V
NE10472050
GA05100030
GA05100030
0.472
102
102
GA05100010 102
GA05100010 102
NFO2101140
NFO2101140
NFO2101140
NFO02101140
EA10602530 | Elect 10uF 25V
EA10602530 | Elect 10uF 25V
DK18103560 | Ceramic
DK18103560 | Ceramic
DK18103560 | Ceramic 0.01nuF +80,—20%
DK18103560| Ceramic 0O.01pF +80,—20%
EA10505030 | Elect 1pF 50V
0.01nF +80,—20%
0.01uF +80,—20%
Pe ee enon nna Pee ooo eo oo eo er ee ee ee ee ey See eo oe oo or or
GD05472140
GD05472140
GD05472140
GD05472140
GD05103140
DF16223300 | Film
DF 16223300 | Film
0.022uF210%
0.022uF+10%
=a 32 a oe =o 5444 =o 444 ee eee rey
P700-RESISTORS
(All Resistors are 5% and
“*W)
GD05682140
GD05682140
GD05682140
GD05682140
GD05473140
GD05473140
GD05821140
GD05821140
GD05821140
GD05821140
GD05104140 100k2
GD05104140 100k2
GD05331140 3302
GD05331140 3302
GD05473140 47kQ
GD05473140 47kQ
GD05151140 1502
GD05151140 1502
GD05152140 1.5kQ
GD05152140 1.5kQ
Sew ee eo oor or er Ee ee ee ee ee ee ee ee ee ee re ee ee re
12

PART NO.
DESCRIPTION
PART NO.
@ (U) for U.S.A.
e (N) for Europe
e (A) for Australia
e@ (F) for Japan
DESCRIPTION
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so 2 9 oo eo ne
= oe
SB ee ooo em ona
= =
pa re ee re ee ey =aewo non nn ma ee ee ee ee
se ow os eo om or or os
=a ae
GD05823140
GD05823140
GD05223140
GD05473140
GD05274140
GD05183140
GD05183140
GD05333140
GD05563140
GD05222140
GD05222140
GD05134140
GD05273140
GD05273140
GD05103140
GD05103140
GA05182010
GA05182010
RA05010050
RA05010050
HT322592F0
HT322592F0
HT319802A0
HT319802A0
HD20010010
HD20010010
HD20010010
HD20010010
HC10019020
HT111232C0
HT111232C0
HV00006080
HV00006080
HT326312C0
HT326312C0
HT325912B0
HT325912B0
HT111112B0
HT111112B0
HT326812B0
HT326812BO
HT111412B0
HT111412B0
HD20015030
HD20015030
HD20015030
HD20015030
HD2001 1290
HD20011290
HD20011290
HD20011290
HD30013010
HD30013010
HD20015030
82k2
82kQ
22k.
47kQ
270k
18k2
18k2
33kQ
56kKQ
2.2kQ2
2.2kQ
130k2
27kQ
27kQ
10kQ
10k2
1.8kQ2 1W
1.8kQ2 1W
Trimming 4702 {B)
Trimming 4702 (B)
P700-SEMICONDUCTORS
Transistor 2SC2259(F, G)
Transistor 2SC2259(F, G)
Transistor 2SC1980(R, S)
Transistor 2SC1980(R, S)
Diode 182076
Diode 182076
Diode 182076
Diode 1S$2076
IC AN6552
Transistor 2SA1123(R, S)
2SA1123(R, S)
STV-3H
STV-3H
2SC2631(R, S)
2SC2631(R, S)
28C2591(Q, R)
28C2591(Q, R)
28A1111(Q, R)
28A1111(Q, R)
28C2681(R, OQ)
Transistor
Varistor
Varistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
2SC2681(R, Q)
2SA1141(R, Q)
2SA1141(R, Q)
DS-1350
DS-1350
DS-1350
DS-1350
$3V-20
$3V-20
$3V-20
Transistor
Transistor
Transistor
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Zener
Zener
Diode
$3V-20
HZ15-2L
HZ15-26
DS-135D
Bo oe ee ae ew aw oe
a a ay
ee ee ee ey
ae ee ee ey
ae ee ee ee ee ny
a ee ry
=o Soe oe een
a oo ord
HT309451 00
HT309451 00
HT107331Q0
HT10733100
HD20010010
HD20010010
HD20010010
HD20010010
HD20010010
HD20010010
HD20010010
HD20010010
HC10042050
HD20010010
HC10041050
LL23915120
LL23915120
LY20240190
FS10100500
FS10100800
FS10100600
YJ08000170
YJ08000270
YJO08000170
Y J08000270
YK213H1320'
ZZ213H1320
SP02020520
YK213H1330
Z2Z213H1330
Y¥J01001400
YU03700240
GA05331010
GA05331010
YF213HO0010
Z2Z213HO0010
IN10080510
IN10080510
IN10080510
1N10080510
IN10080510
IN10080510
28C945(Q)
2SC945(Q)
2SA733(Q)
2SA733(Q)
182076
1$2076
1$2076
182076
1S2076
1$2076
Transistor
Transistor
Transistor
Transistor
Diode
Diode
Diode
Diode
Diode
Diode
Diode 1$2076
Diode 1$2076
Ic TA7317P
Diode 1S2076
IC TA7318P
P700-COILS
Coil, Choke
Coil, Choke
Relay
P700-MISCELLANEOUS
Fuse 1A 250V
Fuse TIA 250V
Fuse 1A 250V
Jack, Fuse Holder
Jack, Fuse Holder
Jack, Fuse Holder
Jack, Fuse Holder
PSOO-SPEAKER SWITCH
CIRCUIT BOARD
P.W. Board, Speaker Switch
P.W. Board Assembly
PSOO-SWITCH
Push Switch, Speaker
PWOO-HEADPHONE CIR-
CUIT BOARD
P.W, Board Head Phone
P.W. Board Assembly
PWO00-MISCELLANEOUS
Jack, Head Phone
Jumper Lead, 3Px700mm
3302 1W
3302 1W
PZO0-LAMP CIRCUIT
BOARD
P.W. Board, Lamp
P.W. Board Assembly
PZ00-LAMPS
Lamp
Lamp
Lamp
Lamp
Lamp
Lamp
100mA
100mA
100mA
1O0O0mMA
100mA
100mA
(w01-99)
(701-99)
(X01-00)
Assembly and Wiring
Adjustment
Correction
13

11. SCHEMATIC DIAGRAM
ee
_—_—_—_—_—_
—-
-—ooooooo
=n
a
ec
ss
Se
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BOTTOM
VIEW
Q703,0704
R721
47k
PEAK
MEATER
(633)
I:EMITTER
Q711,
Q712
&
i
‘
2:COLLECTOR
Q715,0716
i
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cm
yd
pad
ov
R72?
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kta
Cae
3:
BASE
QNO1,QNO2
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MAIN
AMP.
and
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6)
QNO3,QNO4
POWER
SUPPLY.
R719
120k
el
+
ooo
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:
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VIEW
|
r
15k
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O
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27k
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|
1:
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i
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10k
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3:EMITTER
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Q702)
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UNSWITCHED
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34.2v]
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|
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R722
47k
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VIEW
1:
BASE
2:
COLLECTOR
Q701
R720
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a
Cr
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rr
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|
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VIEW
—_—_—_—.
ax
QNni3
SS
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Q7039
Q715
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Q721,0722
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es
|
HT322592F0
HC10019020
HT326312CO
-
HT326812B0
-HD20011290
=:
HT107331Q0
HOV
a8
2SC2259(F,G)
AN6552
2S8C2631(R,S)
2SC268I(R,Q)
S3V-20
2SA733(Q)
i20v
|
z¢
|
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9
Q703,0704
Q711,Q712
Q717,Q718
Q723,0724
Q805,Q806
QNI3
28ON.
TOP
VIEW
HT319802A0
HTI232C0
HT325912BO_-
HTII1412BO_
HD30013010
+
HC
10042050
8
5
2SC
1980IR,S)
2SAl123(R,S)
28C2591(0,R)
2SAII141(R,Q)
4715-2
TA7317P
|
|
Q709
Q705V.0708
Q713,Q714
Q719,Q720
97250728)
=QNOI,QNO2
=
QO
or
(U.C)
VERSION
QNOS“LOQNI2,QNI4
~Hvoo006080
HT3HI11I2BO
Q807
HT309451Q0
HCI0041050
f|
|
For
(U,C)
paras,
esha
4
HD2001I00i0
STV3H
2SAIN1IIN(Q,R)
HD200I5030
25¢945(Q)
TA7318P
1S2076
;
DS-135D
Note
on
safety:
The
parts
marked
with
A
are
important
parts
on
the
safety.
Components
and
wiring
are
subject
to
change
for
modification
without
notice.
16
Please
use
the
parts
having
the
designated
parts
number
without
fail.
17

9. VOLTAGE CONVERSION
To
convert
the
unit
to
a
different
power
source
voltage,
change
the
position
as
illustrated
in
the
drawing
below.
CAUTION:
DISCONNECT
POWER
SUPPLY
CORD
FROM
AC
OUTLET
BEFORE
CONVERTING
VOLTAGE.
DO
NOT
DISASSEMBLE
THE
VOLTAGE
SELECTOR
ABSOLUTELY.
~
~— ON eee cee
(A)
Versions
(N)
Version
NOTE
ON
SAFETY:
THE
PARTS
MARKED
WITH
A\
ARE
IMPORTANT
PARTS
ON
THE
SAFETY.
PLEASE
USE
THE
PARTS
HAVING
THE
DESIGNATED
PARTS
NUMBERS
WITHOUT
FAIL.
10. TECHNICAL SPECIFICATIONS
AUDIO
SECTION
POWER
OUTPUT
PER
CHANNEL
AF
OHMS:
DINGAUKAZ
3
oe
er
Soh
ec
hee
Sern
wk
aN
Sits
wld
weenie
Wit
wera
ee
RA
SES
SE
Sel
85
W
OHMS
RMS:
VKAZ
oc
bcc
Roce
6b
ae
se
he
elie
se
en
GE
ees
ae
eee
ee
ae
a
ee
Be
80
W
BSOHMS:DINEWKHZ.
2
dec
elise
are ore
Se
sro
tebb.
8
oes
ore
tal
Sahay
ara
ante elee
a
salienSs
Soe
ISLE
Ma
oe
BASS
ave
Serva
es
wa
bala
tan
65
Ww
8
OHMS
RMS
1kHz.............
20.02
ee
eee
eee
a
Se
seheg
ae
tl
yet
gta
eared
mi
Eas
bila
dno
tacaw
a”
athac
at,
ok
asigieaee
60
W
TOTAL
HARMONIC
DISTORTION
AT
RMS
8OHMS
.....
2... 0...
.
ee
ee
ee
ees
0.03%
1.M:
DISTORTION
icsscb
uc:
(EG
od
Be
Be
SG
eens
Bana
See
ase
eH
fa
geen
g
ete,
Wis
Gaei
Gael
gs
BOR
Slab
aes
0.03%
DAMPING
FACTOR
8
OHMS
(1
kHz)
2...
0...
ee
eee
80
Input
Sensitivity/Impedance
..
0...
ee
ee
eee
1.5V/32
kohms
Frequency
Response
(+0/—O0.3dB)
..
0.2...
ccc
ee
ee
tne
eee
eee
es
5
Hz—50
kHz
Signial-to-Noisé
Ratios:
o:s.5.
vc
serine
Roe
we
Ee
Wed
SF
aA
ere
weet
a
ee
ark
e
BS
eee
Se
Be
lea
Qi’
S
Siena
120
dB
GENERAL
Power
Requirements.
2.50,
20
Nisae
etn
cae
ee
wae
eas
Ga
SINGS
eee
ah
ae
ae
8
220
V
AC,
50
Hz
(E
and
N
versions
are
featuring
an
external
voltage
selector
for
use
on
other
voltages.
Other
versions
can
be
converted
by
a
qualified
technician
to
operate
on
240V.}
Power
Consumption
(at
Rated
Output,
Both
Channels
Operating)
............
200
eee
ee
eee
eee
220
W
Dimensions
Pariel:
Wichthis.
4%
sock
tS
ve
eee
es
Satie
ike
ak
wa
arid.
Save
Wehandite
er
tice
Baca
tne
nnn
auly
tener
eal
ete
ty
ater
eta
416
mm
Parvel
Heights:
cic
arte
on oe
kts
were
cae
el
rd
ewe
ae
Pee
UR
RRS
Reentiate
oe oe
aa te
73
mm,
Depthy
ei
ovis:
heey
el
hek
oe
eee
be
SAS
adapted
ants
dh
B
Gosd
Sete
phew
hha
tie
a
ee
Babes
302
mm
Weight
Unit
atone...
2...
cee
ee
eee
cee
Seach
He
eee
eae
MAS
i
woe igh
os
Ea
Dole
ahace
Wiese
aia
at
eee
ae
ere
7.9
kg
Specifications
and
appearance
are
subject
to
change
for
modification
without
notice.
15

Printed in Japan
» ¢ .
ran
ERR
e@e
Teas
en
@Z.,;
213H855010 CR}
1981/2