Rotel RA 1000, RB 1000, RC 1000 audio amplifier Technical Manual

Quality. Uncompromised.
ROTEL.
chnical
Manual
TABLE OF CONTENTS.
Chassis Layout (Top View)
Adjustment
Addenda
Block Diagram
Specifications : « : xs s ss vw ss Bs 5 5 v5 3 Bs B
Repair Parts List .
Schematic Diagram
PC Board Diagrams. . . . . . . . . . .. .. .....
THE ROTEL CO, LTD.
ROTEL ELECTRONICS CO, LTD.
ROTEL OF AMERICA, INC.
ROTEL HIFI LIMITED
STEREO INTEGRATED DC AMPLIFIER
RA-1000
Serial No. Beginning
NC12412
1-36-8B OHOKAY AMA, MEGURO-KU, TOKYO 152, JAPAN
2ND FLOOR, EVERGLORY BLDG., NO. 305, SECTION 3,
NANKING E. ROAD, TAIPEI, TAIWAN, REPUBLIC OF CHINA
1055 SAW MILL RIVER ROAD, ARDSLEY, N.Y. 10502, U.S.A.
2-4 ERICA ROAD, STACEY BUSHES, MILTON KEYNES,
BUCKINGHAMSHIRE, ENGLAND
Quality. Uncompromised.
OTEL-
Issue No. ABC-1000-01 Date 1980-04-10
THE ROTEL CO, LTD.
1-36-8 Ohokayama, Meguro-ku, Tokyo 152, Japan
TECHNICAL INFORMATION FOR
MODEL RA- RB- RC-1000
® Errata
nical Manual.
This publication is a supplement to Technical Manual
for the model above, and includes the following.
® Revisions and changes made on the units produced
after the publication of Technical Manual
This publication should be filed together with the Tech-
A. Errata
1:
—
Page 8, Reapir Parts List, left column, line 6, Part No.
141810956 of Function SW PCB Ass'y should read
141810958.
. Page 11, Schematic Diagram for RC-1000, Phono
Section, simbol Nos. of the capacitors shown in Fig. 1
are corrected as follows: C425 to C427; C426 to
C428.
CORRECT NOS.
C427
(C428)
32
WRONG NOS.
C425
(C426
Fig. 1 Phono Amp Circuit (Portion) for RC-1000
The same correction is applied to the Phono Amp
PCB in page 14. Also, C426 located at the right side
of S2 in the bottom center in the figure should read
C428; and C425 at bottom center inside the alternate
long and short dash line in the MC amp section
should read C427.
Changes in and Addition to Circuit Components
. Changes made to RA-1000 (applicable to the units
with Serial No. beginning NC61910 or over).
a) MC Head Amp Circuit is added to the Phono Amp
Circuit. The Phono Circuit with built-in MC Head
Amp is the same as that of the RC-1000. Because
of this modification, the capacitors C423, and 424
on the Phono Amp Circuit is changed to 100mfd.
+B Circuit is partly modified. Fig. 2 shows the
modified and related portion.
b) Because of this modification, component parts are
added as listed in Table 1 to the models equipped
with built-in MC Head Amp. (Not applicable to
the conventional unit without MC Head Amp.)
Schematic
Location Description Part No.
Q401, 402 FET, 2SK155(S) 302001123
Q403, 404 Transistor, 25A921 (S, T) 301001145
0405 Transistor, 2501318 (В, 5) 301201155
D401, 402 Zener Diode, RD3.6EC, 3.6V,
0.4W 300313039
D001 Zener Diode, BZ-120, 12V,
1W 300313004
Phono Amp Circuit Board Ass'y 141510174*
Front Panel Ass'y (Metallic
Brown) 111911489
Front Panel Ass'y (Black) 111911490
Rear Panel 123011520
Owner's Manual 833201364
* Common to the Phono Amp Circuit Board Ass'y for RC-1000.
Note: Repair parts for the models without MC Head Amp are
as listed in the Parts List of Technical Manual.
Table 1
. Changes for RB-1000
Some component parts of the power supply for the
units destined for Canada are changed as follows (con-
forming to CSA standards):
a) Power Transformer “D-type” 204001475
b) Power Switch (CSA approved type) 614010139
c) Noise Canceller "NSK-132” 470101129
. Changes for RC-1000
a) The value of the capacitor C911 on the power
supply circuit is changed from 1,000mfd to
2,200mfd.
b) The primary fuse for the European models is
changed.
F901: from 200mAT to 125mAT
(Part No. 345952012)
c) Change of constant of the Muting Delay Circuit
(to improve muting performance):
1) R804: from 470 kiohms to 220 kiohms
2) R805: from 4.7 kilohoms to 1.5 kiohms
Changes of Headphone Amp Circuit:
1) R851: from 10 kilohoms to 18 kilohoms
2) Part of circuit path is cutt off and new wir-
ing is added on the Headphone AMP PCB
(X-334). See Fig. 3.
Change of Phono Amp Circuit:
1) FET 0401 and 402 are changed from 2SK130
to 2SK155(S).
2) Because of the change in (1), R403 and 404 are
specified as 820 ohms only.
3) Electrolytic capacitors C429 and 430, 470mfd,
are added in parallel with D401 and 402. (See
Fig. 2 Phono Amp Circuit for RA-1000).
The units for Norway and Switzerland are provid-
ed with fuse which is placed at the secondary side
of the power supply circuit as shown in Fig. 4 (as
required by NEMKO and SEV standards).
Fuse Circuit Board Ass'y
Fuse, 125mAT
d
—
e)
f)
LEFT CH
PHONO 1
Ct MM)
PHONO 2
(MC)
TUNER
AUX
IN
TAPE1
Lour
RIGHT CH
PHONO 1
(MM)
|
PHONO 2
(MC)
TUNER
TAPE 2
( REC/PB)
3; THE VALUE OF R403(R404)
VARIES IN ACCORDANCE WITH
ТНЕ 1055 RANK OF Q401( 0402)
1) WHEN THE RANK IS L'OR L2,
THE VALUE OF RESISTOR 15820n
2)WHEN THE RANK IS L3, TH
VALUE OF RESISTOR IS 56
E
On
PR-118
PHONO AMP
C416 | Cá18
POWER SUPPLY AND PROTECTION CIRCUIT
. Changes common to RA-1000 and RC-1000
a) Transistors 0501 and 502 on the Tone Amp Cir-
cuit are changed from 2SC828 to 2SC1327 (R, 5),
Part No. 301201175 (in order to improve noise
characteristics).
TO CHASSIS CUT OFF HERE
GROUND
141810988
345952012
648211147
Note: The pattern encircled by the broken line has
been cut off.
Fig. 3
FUSE PCB
X-294 no
ACS
PT (B-144)
Fig. 4 Power Supply Circuit (Portion) for RC-1000
(NEMKO, SEV Approved Type Only)
Chassis Layout (Top View)
RA-1000
DA Y Y (5) © (7) (8) © 49
Block Diagram
RA-1000
9 © © © © © ©
= == = = = = = = => >
RONDO оО МОм ю-
Function Selector
Volume Control
Phono Selector
Tape Monitor Switch
Acoustics Control PCB (X-332)
VR709, 10kHz Control
VR708, 5kHz Control
VR707, 2.5kHz Control
VR705, 400Hz Control
VR702, 40Hz Control
Power Switch
VR703, 100 Hz Control
VR704, 200 Hz Control
Power Supply PCB (B-143)
F901, AC Fuse
VR706, 1 kHz Control
R Y 901, Speaker Relay
Power Transformer
Voltage Selector
20. AC Outlet
21. L-ch, Main Amp PCB (AF-116)
22. Speaker Terminal
23. I1C601, L-ch Power Amp IC
24. VR601, L-ch DC Balance Adj
25. Tape Monitor Jacks
26. AUX Input Jacks
27. TUNER Input Jacks
28. PHONO Input Jacks
29. Phono Amp PCB (PR-118)
30. R-ch Main Amp PCB (AF-116)
31. 1C601°, R-ch Power Amp IC
32. VR601’, R-ch DC Balance Adj
33. Resonator PCB (X-331)
34. Tone Amp PCB (TC-152)
52 54
vo. Y |
PHONO 1 O —X) BUFFER
MUTING Al ——
BAL 6
PHONO 20
PHONO SELECTOR LOUDNESS pee
FUNC.
TUNER O— R-CH ;
{Fran
AUX O AMP SUBSONIC
53
TAPE 1 O
E |
53 59
R-CH A
TAPE 2 SPEAKER A SPEAKERS
REC /PB R-CH $10
53 oo O B
SPEAKER B
R-CH —
TONE AMP
TAPE1 O— ОСТ, ЕО O PHONE
OUT TAPE. MONITOR PHONO AMP| POWER AMP
| T 001 sit
ru | —\0—070— LINE
RIGHT CHANNEL IS SAME AS ABOVE | POWER
Adjustment Procedures
DC BALANCE ADJUSTMENT
Instrument: Oscilloscope
It will take 3 to 7 seconds for the unit (both models)
to go into operation after power is turned on.
RC-1000 does not require this adjustment.
. Set vertical gain control of the oscilloscope to 0.01V/
cm, and vertical input switch to GND. Bring the
trace to central position on the screen; then set the
vertical input switch to DC.
. Connect the oscilloscope to speaker terminals of
amplifier. Set volume control of the amplifier to
minimum position, Turn on the power.
When DC output appears on the screen (the trace will
shift upwards or downwards as shown in Fig. 1),
adjust potentiometer VR601 on the main-amplifier
PC board so that the DC output trace falls on zero
position (the position set up in step 1).
. Repeat the adjustment in step 2 for the other channel.
== 7 +}
—| OV
MAIN AMP PCB
Fig. 1.
ADJUST VR601 SO THAT OUTPUT
OF DC VOLTAGE ON SCOPE (A
OR B) COMES TO OV POSITION.
DC Balance Adjustment (RA-1000, RB-1000)
Addendum
Model RA-1000
1.
. Specification for
‘‘alues of some components used in output portion
of the main amp circuit have been changed as fol-
lows:
a) Resistor R608, changed from 1082 to 4.752 (3W).
b) Capacitor C610, changed from 0.1mfd to 0.22
mfd.
Reason: To insure stable operation when the unit
operates for a long time at high output.
These modifications have been made on the units
with serial numbers NC37654 and over. (With some
of the units having serial numbers up to NC37654,
installing position of R608 and C610 has been
changed already for the same reason.)
Models RA-1000 and RC-1000
1. Value of capacitor C505 (C506) on the tone amp cir-
cuit has been changed from 1 mfd to 4.7 mfd.
Reason: To reduce residual noise.
This modification has been made on the units with
serial numbers NC18450 and over.
Note: Schematic diagram and PC board diagram
given in this manual are showing the new
value.
tape-monitor switch has been
changed from non-short type to non-short/short type.
Reason: To suppress pop-noise produced when the
switch is operated.
® Only new type switches will be supplied for repair.
Specifications
AMPLIFIER SECTION
Continuous Rated Power Output. . . . . .
RMS, both channels driven
20Hz to 20,000Hz, 0.03% THD
Total Harmonic Distortion
20Hz to 20,000Hz
Rated output .. ... 2.244 4240
1/2 rated output
1W power output
Intermodulation Distortion
60Hz: 7,000Hz = 4:1
. « = # # = & . = m=
Damping Factor
20Hz to 20,000Hz, 82
Frequency Response
+0dB, —1dB
EE = = E EE EE EE = = =
Hum and Noise
IHF A-network
Residual (volume control set at min.)
Input Sensitivity /Impedance
Overload at 1,000Hz
Crosstalk at 10,000Hz
(reverse channel input short-circuited)
PHONO SECTION
Equalization 20Hz to 20,000Hz
Input Sensitivity /lmpedance
PHONO 1 (MM)
PHONO 2 : : i : s s ssjmwmw sv @ 56 5 5 5
Overload at 1,000Hz, 0.5% THD
PHONO 1 (MM)
PHONO 2
Hum and Noise (IHF A-network)
PHONO 1
PHONO 2
CONTROL CHARACTERISTICS
Octave Equalizer (each band)
Increase
Decrease
Loudness Contour (volume control
set at —40dB position)
At 100HZ . 55 swwmas sss ss
At 10,000Hz
. ® = = 3 ®= = ® ® » ® . . … .
Audio Muting
Subsonic Filter . . . ..
PHONE AMPLIFIER SECTION
Harmonic Distortion at 1,000Hz
. = = = = = =
Frequency Response, +0dB, —3dB
. = = = = =
Hum and Noise, IHF A-network
Residual Noise
Output Impedance
. = = + ® = ® = . =. ® = = ww =u
Crosstalk at 10,000Hz
MISCELLANEOUS
Power Requirement
Power Consumption . . .. .. ....... ;
+10dB+1dB
+4dB+1dB
RA-1000
40W*/ch min at 892
Less than 0.03%
Less than 0.01%
Less than 0.01%
Less than 0.03%
5Hz to 70,000Hz . . . . . ..
(1W power output, 82)
90dB (AUX, TUNER, . . . .
TAPE IN)
150MV/30kQ. ........
(AUX, TUNER, TAPE IN)
5V, 0.5% THD на щи
(AUX, TUNER, TAPE IN)
45dB .. ............
(AUX, TUNER, TAPE IN)
2.5mV/35k, 50k, 70k2 . . .
2.5mV/50kQ (MM)
180mV
. 8 ww . = ‘ = ® = = w= =
75dB
. @ = # = . . . = = @& & =
. ее «о а = в а т "ее
+12dB+1dB
—12dB+1dB
« = 2» = = ® = = 8 =
. в ве к в в ве
. + & = & = = = ®»
RB-1000
65W */ch min at 82
75W*/ch at 452
RC-1000
Output voltage/Ilmpedance
Rated output: 1V/1kQ
Max. output: 3V, 0.1%
THD
Less than 0.03% .. . .. Less than 0.03%
Less than 0.01% ..... —
Less than 0.01% ..... —
Less than 0.01% ..... —
5Hz to 100,000Hz . . . . 5Hz to 70,000Hz
(1W power output, 89)
110dB ........... 95dB (AUX, TUNER,
TAPE IN)
150uV . . .. . 50uV
1V/20kQ ......... 150mV/30kQ
(AUX, TUNER TAPE IN)
= swims 6V, 0.1% THD
(AUX, TUNER, TAPE IN)
55dB . . . o.oo 45dB
(AUX, TUNER, TAPE IN)
= я RIAASTD +0.5dB
“one... 2.5mV/35k, 50k, 70kQ
EEE 1204.V/30Q (MC)
— aaa... 180MV
Er 10mV (MC)
— mars. 70d8
CNE 65dB (MC)
= ems soa +12dB+1dB
um na —12dB+1dB
= ws asad +10dB+1dB
a 2.0000... +4dB+1dB
== SRE Fis —15dB
mea» 15Hz, 12dB/oct
== живая 0.6%
— вая a à 50Hz to 60,000Hz
E essa 85dB
= NC 1 STAYS
“U KERN 4 to 162
40dB
120V/60Hz, 220V/50Hz, 240V/50Hz or 120, 220, 240/50-60Hz (switchable)
300W max...
500W max
*Measured pursuant to the Federal Trading Commission's Trade Regulation Rule on Power Claims for
Amplifiers (applicable to the U.S.A. only).
NOTE: Specification and design subject to possible modification without notice.
Repair Parts List
Description Part No. Schematic Location
RA-1000 RB-1000 RC-1000
TRANSISTORS
2SK130A(L), FET 302001115 — — 0401, 402
25 A921 (S or T) 301001145 Q 904 0904, 906, 907 0403, 404
25С1318 (5) 301201155 Q902 Q902 Q405
2SC828 (R or S) 301201115 Q501, 502 — Q501, 502, 801 to
806
uPAG3H (M2) Dual FET 302001121 Q601 Q601 —
2SC1980 301201171 Q901, 903 Q901, 903 —
DIODES
RD3.6EC. Zener 3.6V, 0.4W 300313039 D401, 402
WZ-162, Zener 16V, 0.5W 300313017 D601 D601 —
WZ-067, Zener 6.7V, 0.5W 300313036 D602 D602 —
152472 (Si) 300111010 D903, 904, 905 D903, 904, 905, 906 D801, 802, 908
WZ-052, Zener 5.2V, 0.5W 300313047 — — D 803, 804
S-5VB-20, Rectifier 300919032 D901 D901 —
RB-152, Rectifier 300919038 — — D 901
SR1K-4, Rectifier 300919024 D902 D902 D 902, 909
WZ-240, Zener 24V, 0.5W 300313025 — — D 903, 904
WZ-150, Zener 15V, 0.5W 300313027 — — D905, 906
BZ-240, Zener 24V, 1W 300313009 D907, 908 — —
BZ-120, Zener 12V, 1W 300313004 — — D 907
BZ-140, Zener 14V, 1W 300313005 D909, 910 — —
SEL-305GC, LED (GRN) 300414015 D911 D911 D911
SEL-105RC, LED (RED) 300414014 — D912 —
ICS
HA-1457W-02 303452192 |C401, 402 — 1С401, 402
NJM 4558-DD 303452152 IC501, 502 — IC501, 502
S1-1440H 303452219 IC601 — —
S1-1460H 303452220 — IC601
NJM4558-D or -DV 303452215 IC702 to 709 — 1C701 to 710
LA4170 303452216 — — 1С851
VARIABLE RESISTORS
250KWT, Balance Control 515121130 VR501 — VR501
300B, DC Balance Adj 510502187 VR601 VR601 —
100kW, Slide, Acoustic Control 581005051 VR702 to 709 — VR701 to 710
100KBTx2, Volume Control 525321118 VROO1 — VROO1
20KB, Input Level Control 515321125 — VR001, 002 —
SWITCHES
Push 3-key, Function 614030827 51 — 51
Slide, Remote, Phono 615212273 52 — 52
. Slide, Remote, Tape Monitor 615212272 S3 — S3
Push 1-key, Muting 614010144 54 — 54
Push 4-key, Loudness, Etc. 614040828 S5, 6, 7, 8 (1 set) — S5, 6, 7, 8 (1 set)
Push 3-key, Speaker, Power 614030829 S9, 10, 11 (1 set) — S9, 10, 11 (1 set)
Push 2-key, Speaker 614020433 — S9, 10 (1 set) —
Push 1-key, Power 614010138 — S11 —
OTHERS
Antiparasitic Coil 228641126 L601 L601 —
Relay, Speaker 240111241 RY 901 RY 901 —
Fuse, 3.5A-3AG, 120V Area 341222350 F901 — —
Fuse, 1.6AT, 65.2 (Europe, UK) 345952160 F 901 — —
Fuse, 5A-3AG, 120V Area 341222500 — F901 —
Fuse, 2.5AT, $5.2 (Europe, UK) 345952250 — F901 —
Fuse, 0.5A-3AG, 120V Area 341222050 — — F 901, 902
Fuse, 125mAT, ¢5.2 (Europe, UK) 345952012 — — F 901
Fuse, 100MAT, $5.2 (Europe, UK) 345952010 — — F 902
COMMON TO ALL MODELS
Description Part No.
Remote Control Unit,*' Phono Sw 654101151
Remote Control Unit,*' Tape Monitor 654101150
Wire Ass'y,*' Phono Sw 647110010
Wire Ass'y,*! Tape Monitor 647110008
Pilot Indicator PCB Ass'y 141810806
Function Sw PCB Ass'y *' 141810956
Headphone Jack*' 626110033
Pin Jack, 4P w/DIN Socket*' 649201120
Pin Jack, 4P*! 624300204
Pin Jack, 2P*? 624200202
Speaker Terminal, 4P** 642400111
AC Outlet (Not used for UK) 648211141
Voltage Selector (Not used for Canada) 648211247
Fuse Clip (STD) 648211146
Fuse Clip (Europe, UK) 648211147
Closed End Terminal 643110012
Noise Canceller, NSK-135 (120V) 470101118
2 , X-type 0.047 (220/240V) 470101122
Line Cord (STD) 796301115
1” (Europe) 796301139
" (Australia, etc) 796301140
" (UK, etc) 796301138
Cord Stopper (STD) 675201111
" (Europe) 675201114
" (UK, etc) 675201116
" (Canada) 675201117
Knob,*' Volume Control (Metallic Brown) 116310289
a“ (Black) 116310290
Knob,*' Phono, Tape Selector
+ (Metallic Brown) 116310285
” (Black) 116310286
Knob,*' Acoustics Control (Metallic Brown) 116310291
“ (Black) 116310233
Knob, Balance or Input Level Control
(Metallic Brown) 116310287
“ (Black) 116310288
Button,*' Muting, Loudness, etc
" (Metallic Brown) 116210056
" (Black) 116210057
Button, Power, Speaker, etc (Metallic Brown) 116210058
Ш (Black) 116210059
Foot 673402021
Top Cover** 138011304
Screws
® 3x6mm, Oval Countersunk (Ni) 702213006
® 3x10mm, Tapping (BLZ) 726223010
® 3x8mm, Tapping (Ni) 726213008
® 3x8mm, Binding Head (BLZ) 705223008
3x5.6mm, Flat Head (BLZ) 770911166
® 3x15mm, Binding Head (Ni) 705213015
® 3x10mm, Brinding Head (Ni) 705213010
e 3x6mm, Binding Head (Ni) 705213006
® 3x12mm, Tapping (Ni) 726213012
®4x10mm, Binding Head (Ni) 705214010
® 3x6mm, Oval Countersunk (Ni) 702213006
» 3x6mm, Tapping, Oval Countersunk (Ni) 722213006
® 3x6mm, Countersunk (Ni) 701213006
® 4x8mm, w/FW, Binding Head (BLZ) 755224008
® 3x 9mm 770911130
Ground Terminal 770911119
Insert Screw, 2=8.5mm 770911132
Washers
¢3, Flat 770500003
¢7, Flat 770500006
$3, Teethed 770500014
$4, Spring 770500011
$4, Flat 770500004
*1: Notused on RB-1000
*2: Not used on RA-1000
*3: Not used on RC-1000
Spacers
62.7x610x3t 990201231
Фбх ф20х11 990201306
Nuts
M3 770402201
M4 770402202
M7 770402205
M12 770402209
FOR RA-1000 ONLY
Description Part No.
Power Transformer (120/220/240V) 207001482
Phone Amp PCB Ass'y 141510173
Tone Amp PCB Ass'y 141710326
Main Amp PCB Ass'y without Power IC
and Heatsink 141610331
Muting Switch PCB Ass'y 141810949
Power Supply PCB Ass'y (120V) 141810961
Power Supply PCB Ass'y (Europe, UK) 141810965
Speaker Switch PCB Ass'y 141810951
Resonator PCB Ass'y 141810954
Acoustics Control PCB Ass'y 141810956
Front Panel Ass'y (Metallic Brown) 111911465
e (Black) 111911466
FOR RB-1000 ONLY
Description Part No.
Power Transformer (120/220/240V) 207001475
Main Amp PCB Ass'y without Power IC
and Heatsink 141610332
Speaker Switch PCB Ass'y 141810952
Protection Ind PCB Ass'y 141810703
Power Supply PCB Ass'y (120V) 141810962
Power Supply PCB Ass'y (Europe, UK) 141810966
Front Panel Ass'y (Metallic Brown) 111911471
es (Black) 111911472
FOR RC-1000 ONLY
Description Part No.
Power Transformer 207001 483
Phono Amp PCB Ass'y 141510174
Tone Amp PCB Ass'y 141710327
Muting Switch PCB Ass'y 141810950
Power Supply PCB Ass'y (120V) 141810963
da (Europe, UK) 141810967
Resonator PCB Ass'y 141810955
Acoustics Control PCB Ass'y 141810957
Headphone Amp PCB Ass'y 141810959
Muting Delay PCB Ass'y 141810960
Front Panel Ass'y (Metallic Brown) 111911469
" (Black) 111911470
Top Cover 138011305
Signal Cord Ass'y 791001112
RA-1000 Schematic Diagram
— @501 - —
25C828 =
1401 HA-1457W ES Ses >
PHONO 2 O-7—0-0 ; RS ELO
` 0.075 R 509 AN |
AAA, В _ 4.7K <
TUNER 1 Lg LK #51; #56) R541 C525 T5727 — De
+ MWA —e— \
AUX 53 oo - ! 10P| bel mb
г e o R549) w2~ | R22
— q = ON »Ñ> — @ < — п <
TAPE 1 Sat += = [56 1 2 —
© nts ws > |
our 34 + 2 1 = D—©—a’ ô G
q | > 1C 501 02 ON ae OFF 158
=| baza NJM-4558D-D NJM-4558D-D EQUALIZER
MUTING Sw. CIRCUIT 3)—(2)—(
RIGHT CH —— A. 56 LOUDNESS 8 PY Pew
AAA J am ra
PHONO 1 R550, R552
SAAS | ANNA +
PHONO 2 cs18|C520 >
1 se de +9F TS 10
TUNER 1 ds a 8 2s
28 WS
u Ср24 R546 a
AUX uz = AAA
> = €532 Se a =
2 ne La nee ng Pz
f < Œ< 001 @ < o o о A E4 E3
TAPE 1 +
_ TC-152 TONE AMP CIRCUIT +B1 -B2
X-332 ACOUSTIC CONTOROL =
zo eu 40HZ 100 Hz 200Hz 400Hz 1 KHz
> o =
с 5 5
> < < ES _ < =
= > Ms | > > | >
m o
= e — J \ /
e 2 1 / E. E
TAPE 2 2 7 | T1237 _
(REC/PB) E т
2 | + 3 Le
/ © < 5 <
o | PR-118 >
[=== a === e Lo == = PHONO AMP д: 3 5 6
53 TAPE MONITOR
Ez El [A] [8] [F
= u
o
©
B-143 CIRCUIT Te
77
Ed $
| ©
= _ $
rag m = =
a = a wo
a = a = и.
m
| & a
+: “Pz
€905 — C906 ROIS 1 ‘ 9
Ho + He IP MN —— — ——= > c607
6800 6800 47K = e
| | ~ —
o - sv vv
| 2 o >< |Wz067
, o OS |
D901 a = C606 E C604
SSVB-20 née *——H
= ® o 10 C605 R606 47
© Ls A |
+ = 3P Sox 620
ШУ >
= = $ я = N |
al oi 8° Aone cel y Leo! |
AAN О 0 de
21$ 8 E
a ba œ > C609, C609, RL-115 AF-116 MAIN AMP
un a. H H
to TS SAME AS LEFT CHANNEL
25C1980 2.5K Hz 5KHz 10 KHz AF-116 MAIN AMP 2 2
FUSE J =
100V 120V
220V 240V 16AT X у a — — y
|___X-331 RESONATOR CIRCUIT 3
SPEAKER- A Notes:
® Unless otherwise noted in schematic diagram, all capacitance
ON UNITS FOR CEE VERSION
Y
SPEAKER-B values are expressed in mfd.
4 X
TOO 4
5 —
Г e Voltage reading with VTVM from the point shown to the chassis
; ground (line voltage: 120 volts).
SPEAKER SW CIRCUIT
NSK132
RERO | 5 1 1
ео [4 À | © Voltage reading tolerance: within 20%
=
© В
25C1318 NJM4558D
25C828 NJM4558DD
2SC1980 S1-1440H HA1457W uPA63H
2SA921
RESISTORS CAPACITORS
5% tolerance unless otherwise noted. T..... Tantalum capacitor
K..... Kilohm MY. ... Mylar film capacitor
M.....Megohm LN.... Low noise type capacitor
Unmarked. . . Low noise type carbon resistor, 1/4 watts H-.... Electrolytic capacitor
Unmarked . . Ceramic capacitor
Power Supply Circuit (RA-1000/RB-1000)
To MAIN AMP To
To L-CH MAIN
To SPEAKER SW To R-CH MAIN To PHONO AMP
To TONE AMP
To RESONATOR
To PROTECTION
(2) , (1)
To PILOT IND PCB
CHASSIS
GROUND
To
To CHASSIS GROUND PCB(+B),(-B) TRANS AMP PCB(2) PCB(1),(2) AMP PCB(2) PCB(-BIL+B2f” PCBIEZ)A PCBI-BA+B8)9 — PcBI2)* (1)%
T a| £ ale 3 = 5| z E 5| a < = © zl |5
2 «| @ ge |5 > 2) 5 = | © ® Y E 5| e
: — nL
"a A paro (av) —
53 (or À um fil RY 901 con e pee e DE + .-
>a a e
e 5 pe + 1 | 220 cote R924
e 31 0901 A 13 \e è | | D9076 * (24V) pro R927 * 10K 0006”
5 = à 09082 | (24v) Ro26* sx 8 (BL
zu 9 Ez o MIE. gas e E
E > e wd € +
Tr e т * Los do o o noc a “e 7
50 = 5 A Ad + we B Е
ad с 15 ix 220 D909 ^ (14V) у
°° 4 Ne q D902 o = oo < : 8
0486 —<- > x
5 1% É + e ® $ 3 8 Ke
O © 2. q У 9902
os ar E | - ли
7 x 2 e ; 2°
2 i = > = с
Sa Ha ® 4 4 R918 100 i: $ | | : E
D К < % Mit x que © > 2 > oi Q901
R916 4.7K “hs Y 3 3 99 q q 5 909
8 e or 832351 54318 8 5 AH
a 0 e MOE x
; не | a 5 d
= Oo ®2C © о N © ©
о Pi о O a
Te Te 5 5
| g & © e © $ 3
2
NOTES:
1. Components and wirings marked with 4” are not used on a RA-1000 RB-1000
RB-1000 (used on RA-1000 only).
2. Components and wirings with asterisk are not used on RA- Pan SRA 1200] БРАТОМ)
: P J 1.6AT-65.2 2.5AT-65.2
1000 (used on RB-1000 only). (Europe) (Europe)
. Val of capacitors and resistors whose values are not given
3. Values р , pie) 9 C905,906 6,800 mfd 10,000 mfd
depend on models (see the separate table). C909 470 mfd 1,000 mfa
R903 68k $2 56k 2
R907 100k £2 91k $2
R908 10k $2 1.2kQ
R919 22082 1k $2
R924 1.2k $2 1.5k 0
Speaker Switch Circuit (RA-1000/RB-1000)
SPEAKER TERMINAL
Main Amp Circuit (RA-1000/RB-1000)
Te To POWER SUPPLY Fee.
o
To TONE AMP PCB
RA-1000: <B> <A> en COM) ` To CHASSIS L-CH=(9) ; (BLU)
(ож). (L), (R) Е
5 al 5 < ||
г ku À ar”
= œ| © o ||!
= | о ||
tr ran
o
: 3 | Y = / op a
Xx 1 *1 2
o
*
R804 ^^ 330 A - 5 “a
— AN——— ns LK)
i — A
х? = я D602 1(6.7V) REO! IK
w
= AS < 8 %- © o R602 56K
0. — (GRN) x: * 1 ö о D D6O! , e (16V) ee _gme,
Sa REO! ceo! —« — o
Te © C602, 100P Q Pv
= (BLY) lo 4604 He ©
а © 04 Ñ— ———e R603 100 |
=m A г р" +
a 2 9 ee * > R608 * 1 Wo 47 ce о
ui GL а R605 2.2K XS =
E — un
* 1
celo ol =
R
$ *——a Rio © 80625. R604 100
E oO © #8 eve >
o sea R607 22k © Oo & C605 3P № ©
S 10 59 o
o ©
= J + - — + st
PHONES *? SPEAKER SWITCH IC 601
RA-1000 . <B> <A> | + * * +. se e * eo o © + * 3 «* so e
B-1000 : <A> <B>
x |! 2 345 6 7 89 1011 1213 14 15 16
1: Not used on RA-1000.
*2: Not used on RB-1000.
*1. Not used on RB-1000.
*2. Value of R606 6202 for RA-1000;
9102 for RB-1000
Acoustic Control Circuit (RA-1000/RC-1000)
To RESONATOR PCB
(18) (16) (14) (12) (10) (8) (6) (4) (2)%
x = 3 © X & 3 3 o
© © = x © o о > ©
. e e e e e e e . e e e e e e e . o . e
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
@ e e o ® a e e e ©
2 ; 2 ; 2 ; 2 ; 2 ‘ d 2 2 . a d 2'
иж a
5 _ (BLK) i a
La
— =
5 сч N N a сч с сы au au
5 _ (RED) e 2 x x x - x » e © ;
4 a 4 ó m4 4 o es 4 4 = a 4 4
A co So se se se ge ge ge ge
&| =__(8RN) Я
= +
5 - a © o E o un + m с >
© o © o O o о о © о
= © ~ ~ ~ ~ ~ ~ ~
=| = (BLK) Le a a a œ a a a a
5 WT e > > > > > > > > >
gu
ui 7
® se se ie se 1. 10 se se se
| @ _ (ORN) 1.14
2 °
x
y (YLW) o
— I~
| ÿ В ;
p . + 4 a | 9
| 2 2 2 2 2 2 2 2 2
J © e e © a E) e e e
2
| i 1° | I | E 1 1” | ! i | | 1 | 1 |
eo [ eo e e o e e oe e © e e e e . oe e ©
= = = = = ë — = 3 =
z с Е 2 Е : a Е 2 Е
E Е © © o = & © © @
(19) (17) (15) (13) (an (9) (7) (5) (3) és”
To RESONATOR PCB
NOTE: Components and wirings with asterisk are not used on
RA-1000 (used on RC-1000 only).
Phono Amp Circuit (RA-1000/RC-1000)
TAPE MONITOR - 2 TAPE MONITOR - | AUX TUNER PHONO
REC/ PB <ouT > <IN> <1> <2>
(R) tL) (R) (L) (В) tL) (R) (L) (К) (5) (В) (5)
x Y o
o
ns a
o © ro m
a gd
8 9407 o 0401 y
Oi *
Ra04 À 820 R402 33. /Raol 33 [4 | 2003 820 |?
ste 8 e séG*o
R406 10 / R405 10 Cao! ‚0.0022
a ad e +}
E 00022 7 \ \ > D401
Фо Ес В ; ее СЕ >| + _
0402 (3.6у) 9904 R408 240 R407 240 0405 (3.6V) —
5 ~ У 3 ~ >
o + ъ To + =}
с o a
> R409 4.7K cass q
al 67% Q4QS ом!
7 ч7к /> 100 st
Et
‘ Les С (BRN) 32
ave C426 0.01 — ad
я i; 47 R438 ATK ee 2
. e J _
o 2 a ©
. т 18 © e e
a cao5 C409 TTS o TL oj. cat 4,7 o
% a E H En ois = оо ©
7] "e A4 7 a7 = al e 9 x 8 |
<4 re © y ©, 4. 3 um 8 x &
T О : , dd 6 [С 401 у rie
я "ET | 7 =T3 21 D № 58 (RED) COTE
. SOURCE — Rail 68K | *— - Y : = 2°. O Sam
Ba 3 ol 51 8T® Le
° ТАРЕ 2 R413 180K + se Is He he R434 330 (BLU) x3 mM
. 2» | CL) e О E E E CA 1ЮОР С4/3 20Р e——— WWW @ ==.
» . o —
R415 180K R433 ,jx_ 330 5
oo wa ° ETA * c423 5
— e
+. -———
R412 6B8K | *- 220 <RA-1000>
= 100 <RC-1000) C424
R414 180K ©
CR) ve ¥ ee 1000>
o Cal2 ,, 100P сам =
R416 180K | * X93 2 8 {| 1-1. 100 <RC- 1000 >
ee . eN | PHONO-2 IC 402 2 sin.
== isa Gre: DA
{X SEN y 8 7 6 5 4 3 I au <
$2 Ex go 3 3 == = E
o =
F3 PHONO SELECTOR ЭН КН? 31 Zw Tr =
4.7 a7 = ©
TAPE MONITOR oT ele ® + Ho a
* = TO 4.7 5
? © и > (BLK) <
æ Lu
=
©
С ©
E
=! =! = 5 а =
I I
| 5 3 a: al & = 7
To FUNCTION SW To TONE AMP PCB To FUNCTION SW To FUNCTION SW To FUNCTION SW
(TUNER) (2), (E1),(1) (AUX) (TUNER) (PHONO)
NOTES:
* : Value of R403 (R404) on MC head amp circuit for model @Components, other than those marked with “4,” inside the area
RC-1000 depends on IDSS rating of 0401 (0402). formed by broken line are not used on RA-1000 (used on RC-
* : Not used on RA-1000. 1000 only).
A: Not used on RC-1000.
Tone Amp Circuit and Muting Switch Circuit (RA-1000/RC-1000)
MUTING DELAY PCB / RC - 1000
(1), (2)
=
+
o
MAIN AMP PCB (1) / ВА- 1000 To VOLUME CONTROL To RESONATOR PCB To PHONO AMP PCB
-CH)
ECHO LR } (L-2),(R-2),(1) (E),(-B),(23),(21),(22)/24),(+ 8) (2), (1)E1-E3)
a! ë EF = 38 2532 EE
| || aif! {TONE AMP PCB) cle ® SEER EEE JE CMUTING Sw PCE
| uu
2 Ь y y 656 IK \
* E ii ED... 0 E Í
R630 с518 + eu E “© : e к TY C506 6, RSSI* 5
FB 8 BIH LS So ® ceed . ;
pe es Ts pe te i ro être 5: свет sor © E RA-1000 RC-1000
RS38% 47,534 № a Esc DT AA EA 1 CNEA peak 7 ao
ee eT e 0 C517, 518 50P 300P
hi ща a7 6 si 1 mad ФВ 2 ов STO] NN C519, 520 10P 30P
c524 x vis = eso ox В IC 502 A x
= e cs23 R533 * ap “ae pas Pr ® 4 Y De © 43 21] sù 8] ++ — C525, 526 1 mfd 4.7 mfd
Y a Y ue o o 8 x o o ..— —-a
a del Br OT IA «ale +7 ES 25% = ps ro TA — — R503, 504 5.1kQ 6.8kQ
Se 20 20 | 522 ws НОО =O fxg X o —* © 15 id 3X coza1s0r = |
3|% 3833 | 938 R529 % a à RS + г Е 58 me xo OF CES so A: yl À R507, 508 22kQ 27kQ
5 me ie CE R © o UN > о m o
ev’ one Salle le dv... o 2 2 R529, 530 180k 2 82k $2
20 6 UE ” oe im - 5 EL 8 8 R531, 532 27k $2 24k 2
а в оне к. e on el IS [von @ e “e = = 4 3 e “o e R533, 534 39kQ 47kQ
a a x or "
= x R512 5.6K ñ R 3 3 10k 2 :
= = e ml “503 Ol ve 302 dor 5 3 * * E. a 3D
: 2 y BE SM 18 Ea ge h ; R545, 546 4.7k2Q 8.2k Q
ES Torr [2% | Torr stereo [8° | ок 18 SATE ae 4 a E R549, 550 12k $2 5.6k $2
i e Ут се LE | iy R551, 552 12k 2 8.2k 2
3 MUTING SWITCH
EQUALIZER SUBSONIC MODE LOUDNESS al 5 BALANCE = =
SWITCH FILTER SWITCH SWITCH e CONTROL A =
SWITCH “1 1 —
To VOLUME CONTROL To VOLUME CONTROL
(R-4),(L-4) (R-3),(L-3)
Notes: 1. Values of components with asterisk vary from model
to model (see the attached table).
2. Value of R507, 508: 22k for RA-1000
27kQ for RC-1000
Resonator Circuit (RA-1000/RC-1000)
To TONE AMP PCB
(11), (12)
To ACOUSTIC CONTROL PCB To ACOUSTIC CONTROL
(2)* (4) (6) (8) (10) (12) (14) (16) (18) (20) # PCB (21),(22)
6 3 ] Е = 8 3 3 Е : z 2
Schematic
| | | | | | и | | | | | ВЕ в ВА-1000 RC-1000
; © : о C707, 708 2.2 mfd 1 mfd
ag. 84 TE за 3 35 Е: 3% 3 X E г < o ; x 3 ef sl $ $18 Ls C709, 710 0.47 mfd 0.22 mfd
Gil BA; kl ef 5 TÍ NO. me CO E Sade Mu E deu Se 51° 18 6711 712 22 mfd 33 mfd
Œ i it ; i 2 г o
3 To, as ‘Ч Leo E La! ANI ol. FE Fa Sd MA mo Tae. | €717,718 4.7 mfd 10 mfd
"af 5 MOE? EL. SES o EE STE ES SUN ELSE SEES ENS AO O 1898 C727; 728 1 mfd 2.2 mfd
Tg 2% | C733,734 2.2 mfd 3.3 mfd
5678 5 8 5 8 5 8 6 8 5 8 — 0 ua C741, 742 0.68 mfd 1.5 mfd
IC 701 * IC 702 IC 703 IC 704 IC 705 IC 706 IC 707 IC 708 IC 709 IC 710 [т 2 om 5 5
4 ; : Г : : 4 - : Tr Er 4 | 4 | 1 e. C745, 746 0.39 mfd 0.047 mfd
3 J SJ] : Ç ; , C747, 748 0.33 mfd 0.68 mfd
9 * i *
Wie deb delle iba PM ща, | сео opens conn
SH 53.001501 Todd Eo iva 0d ES 0) ба Бабе STC Ee SIS == ORG +R в C753, 754 0.15 mfd 0.47 mfd
c o æ ==
a 3 3 E. E Re Tel À e ; © нА x13 15 oo 3:87 C757, 758 0.0039 mfd 0.012 mfd
sa a Sal Sof Ej o > A, Sole À ar mal e da ÉTSLE Sian ме 978 | C759, 760 0.0059 mfd 0.0015 mfd
e e ГО — 8 C761, 762 0.039 mfd 0.22 mfd
- R705 to 708 4700 33082
a R709 to 712 3600
E 7 7 т _ I R713 to 720 3300
Е 2 E В Е 2 Е 8 : R721 to 724 56092 360%
x а Л R725 to 728 3902
| (13 15
(1) (3) (5) (7) (9) (1) ) ct R729 to 736 36082
Te ACOUSTIC CONTROL PCB
* : Not used on RA-1000.
A : Not used on RC-1000.
Values of capacitors and resistors whose values are
not given depend on models (see the attached table).
Function Selector Circuit (RA-1000/RC-1000)
To PHONO AMP PCB
(1) (2) (7) (3) (4) (8) (5) (6)
A de A = =
= E > 5 =| = 3
= I x - e №
>| = 9 8 9 = a 4
(IC
|
AUX
J
PHONO TUNER
L
51 FUNCTION SELECTOR
">