Rotel RMB-1048 User manual

Technical
Manual
EIGHT CHANNEL POWER AMPLIFIER
RMB-1048
Table of Contents
Specification
Specification......................................1
Parts List...........................................2~5
Adjustment........................................6
PCB Assembly..................................7~8
Schematic Diagram ..........................9~10
SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU,
TOKYO 150-0045, JAPAN
Serial. NO.
Beginning
®
Quality Uncompromised
Y-367A-0208/pdf
Continuous Power Output - all channel driven 40 watts/ch into 8 ohms
(20-20 kHz, < 0.05% THD)
Total Harmonic Distortion < 0.05%
(20Hz-20kHz, 8 ohms)
Intermodulation Distortion < 0.03%
(60 Hz : 7 kHz, 4:1)
Frequency Response ( ±1 dB) 15Hz–100kHz
Damping Factor (20-20,000 Hz, 8 ohms) 150
Speaker Impedance 4 ohms minimum
Signal to Noise Ratio (IHF A network) 110 dB
Input Impedance 22 k ohms
Input Sensitivity 1.0 volt
Power Requirements
USA: 115 Volts, 60 Hz
Europe: 230 Volts, 50 Hz
Power Consumption 400 Watts
Dimensions (W x H x D) 432 x 121 x 432 mm
17 x 43/4x 17 in
Panel Height 109 mm, 49/32 in
Weight (net) 15.1 kg, 33.3 lb.

EIGHT CHANNEL
POWER AMPLIFIER
RMB-1048
CH - B LEVEL CH - A LEVEL CH - C LEVEL CH - D LEVEL
POWER
APROTECTION DCB
RL
INPUT
B
RL R
L
INPUT
S
I
G
NAL
OU
TP
UT
LINK
A
LINK
STEREO 12VTRIG
.
O
F
F
RL
INPUT
C
LINK
STEREO
RL
INPUT
D
LINK
STEREO
OUT
IN
~
WARNING: TO REDUCETHE RISK OF FIRE OR ELECTRICAL
SHOCK, DO NOT EXPOSETHIS EQIPMENTTO RAIN OR MOISTURE. 4 OHMS MINIMUM
SPEAKER IMPEDANCE
++
–
–
RIGHT LEFT
SPEAKERS D
++
–
–
RIGHT LEFT
SPEAKERS C
++
–
–
RIGHT LEFT
SPEAKERS B
++
–
–
RIGHT LEFT
SPEAKERS A
M
O
DEL N
O
. RMB-1
0
4
8
P
O
WER
CO
N
SU
MPTI
O
N: 4
00W
Appearance RMB-1048

Parts List 1/2
SYMBOL PARTS NO. DESCRIPTION
501 X-1334 PCB ASSY
D101-104,201-204,301-304,401-404 034 T1N4148-86 DIODE 1N4148TAP-50
D151,152,251,252,351,352,451,452 034 T1N4148-86 DIODE 1N4148TAP-50
C107,108,207,208,307,308,407,408 041 TUTES1E101-TF ELECTROLYTIC CAPACITOR 25V100uF
C101,102,201,202,301,302,401,402 041 TUTES1H100-TF ELECTROLYTIC CAPACITOR 50V10uF
C111,112,211,212,311,312,411,412 041 TUTES1H010-TF ELECTROLYTIC CAPACITOR 50V1uF
C151,251,351,451 041 TUTES1H010-TF ELECTROLYTIC CAPACITOR 50V1uF
R155,156,255,256,355,356,455,456 054 TMF1201 METAL FILM RESISTOR 1/4W 1.2K
R107,108,207,208,307,308,407,408 054 TMF1501 METAL FILM RESISTOR 1/4W 1.5K
R153,154,253,254,353,354,453,454 054 TMF1501 METAL FILM RESISTOR 1/4W 1.5K
R123,124,223,224,323,324,423,424 054 TMF1000 METAL FILM RESISTOR 1/4W 100
R160,260,360,460 054 TMF1003 METAL FILM RESISTOR 1/4W 100K
R121,122,221,222,321,322,421,422 054 TMF1002 METAL FILM RESISTOR 1/4W 10K
R157,158,257,258,357,358,457,458 054 TMF1502 METAL FILM RESISTOR 1/4W 15K
R101,102,201,202,301,302,401,402 054 TMF1001 METAL FILM RESISTOR 1/4W 1K
R125,126,225,226,325,326,425,426 054 TMF2201 METAL FILM RESISTOR 1/4W 2.2K
R129-132,229-232,329-332,429-432 054 TMF2200 METAL FILM RESISTOR 1/4W 220
R151,152,251,252,351,352,451,452 054 TMF2202 METAL FILM RESISTOR 1/4W 22K
R103,104,203,204,303,304,403,404 054 TMF2702 METAL FILM RESISTOR 1/4W 27K
R164,264,364,464 054 TMF2702 METAL FILM RESISTOR 1/4W 27K
R105,106,205,206,305,306,405,406 054 TMF3300 METAL FILM RESISTOR 1/4W 330
R119,120,219,220,319,320,419,420 054 TMF3302 METAL FILM RESISTOR 1/4W 33K
R161,165,261,265,361,365,461,465 054 TMF4701 METAL FILM RESISTOR 1/4W 4.7K
R115,116,215,216,315,316,415,416 054 TMF4300 METAL FILM RESISTOR 1/4W 430
R117,118,217,218,317,318,417,418 054 TMF47R0 METAL FILM RESISTOR 1/4W 47
R109,110,209,210,309,310,409,410 054 TMF4700 METAL FILM RESISTOR 1/4W 470
R159,259,359,459 054 TMF4702 METAL FILM RESISTOR 1/4W 47K
R111,112,211,212,311,312,411,412 054 TMF6801 METAL FILM RESISTOR 1/4W 6.8K
R127,128,227,228,327,328,427,428 054 TMF6801 METAL FILM RESISTOR 1/4W 6.8K
R113,114,213,214,313,314,413,414 054 TMF8201 METAL FILM RESISTOR 1/4W 8.2K
R163,263,363,463 054 TMF8200 METAL FILM RESISTOR 1/4W 820
R133-136,233-236,333-336,433-436 054 NIR2-0.22JF NIR RESISTOR 2W 0.22
VR103,104,203,204,303,304,403,404 051 SF001-222 SEMI FIXD RESISTOR VM6CKPH1S-2.2K
C115-118,215-218,315-318,415-418 044 S50V150PJ STYROL CAPACITOR 150pF
C105,106,205,206,305,306,405,406 044 S50V220PJ STYROL CAPACITOR 220pF
C103,104,203,204,303,304,403,404 044 S50V330PJ STYROL CAPACITOR 330pF
R162,262,362,462 034 TTC-503 THERMISTOR 50K
Q109,110,209,210,309,310,409,410 032 TA1016-FG TRANSISTOR 2SA1016-FG
Q101-106,201-206,301-306,401-406 032 TA1016-FG TRANSISTOR 2SA1016KAA-FG
Q153,154,253,254,353,354,453,454 032 TA608-FG TRANSISTOR 2SA6081KAA-FG
Q111-114,211-214,311-314,411-414 033 B631-EF TRANSISTOR 2SB631K-EF
Q107,108,207,208,307,308,407,408 032 TC1941-KL TRANSISTOR 2SC1941-T-KL
Q151,152,251,252,351,352,451,452 032 TC536-FG TRANSISTOR 2SC536KAA-FG
Q115,116,215,216,315,316,415,416 033 D600-EF TRANSISTOR 2SD600K-EF
Q121,122,221,222,321,322,421,422 032 D600-EF TRANSISTOR 2SD600K-EF
Q117,118,217,218,317,318,417,418 033 B817P-DE TRANSISTOR 2SB817P-DE
Q119,120,219,220,319,320,419,420 033 D1047P-DE TRANSISTOR 2SD1047P-DE
501 X-1335 PCB ASSY
PJ101,102,201,301,401 066 4TR-2709#3 2P PIN JACK (WHT/RED)
HJ701,HJ702 065 YKB21-5103A 3.5Φ MINI JACK
(R903) 053 CR14-152J-A CARBON RESISTOR 1/4W 1.5K
R171,172,271,272,371,372,471,472 053 CR14-124J-A CARBON RESISTOR 1/4W 120K
R701 053 CR14-102J-A CARBON RESISTOR 1/4W 1K
R702 053 CR14-221J-A CARBON RESISTOR 1/4W 220
R904 053 CR14-333J-A CARBON RESISTOR 1/4W 33K
(R903) 053 CR14-472J-A CARBON RESISTOR 1/4W 4.7K
R178,278,378,478 053 CR14-682J-A CARBON RESISTOR 1/4W 6.8K
016 X-1334A01-02 PCB ASSY
016 X-1335B01-07 PCB ASSY

Parts List 2/2
SYMBOL PARTS NO. DESCRIPTION
R173,174,273,274,373,374,473,474 053 CR16-104J-A CARBON RESISTOR 1/6W 100K
R175,275,375,475 053 CR16-153J-A CARBON RESISTOR 1/6W 15K
R176,276,376,476 053 CR16-563J-A CARBON RESISTOR 1/6W 56K
C911-922 043 TC500V103 CERAMIC CAPACITOR 500V0.01uF
D904,905 034 T1N4003-TB DIODE 1N4003
D171,172,271,272,371,372,471,472 034 T1N4148-86 DIODE 1N4148TAP-50
D701,702,906 034 T1N4148-86 DIODE 1N4148TAP-50
C171,271,371,471 041 TUTES1E101-TF ELECTROLYTIC CAPACITOR 25V100uF
C910 041 TUTES1E471-TS ELECTROLYTIC CAPACITOR 25V470uF
C172,272,372,472 041 TUTES1E470-TF ELECTROLYTIC CAPACITOR 25V47uF
C909 041 TUTES1H471-TS ELECTROLYTIC CAPACITOR 50V470uF
C901-908 041 50USP682 ELECTROLYTIC CAPACITOR 50V6800uF
F101,102,201,202,301,302,401,402 036 5ST3.15 FUSE 250VT3.15A
F903 036 R251-250 FUSE AXIAL LEAD TYPE F250mA
R901 054 ERQ12AJ2R2P FUSE RESISTOR 1/2W 2.2
IC701 031 PC817B I C (PHOTO COUPLER)
IC171,271,371,471 031 MPC1237HA I C (PROTECTION)
D001-D004 034 LTL4262N LED (RED) 3ΦLTL4262N
C109,110,209,210,309,310,409,410 044 KT18-2A104K M.P CAPACITOR MKT1818-410/015
R137,138,237,238,337,338,437,438 054 TMF1001 METAL FILM RESISTOR 1/4W 1K
R139,140,239,240,339,340,439,440 054 1WS10JF MOF RESISTOR 1W 10
R902 054 1WS120JF MOF RESISTOR 1W 120
R177,277,377,477 054 1WS1KJF MOF RESISTOR 1W 1K
D903 034 W02M POWER DIODE (1.5A)
D901,902 034 BR84 POWER DIODE (8A)
S901 061 C-4176A08 POWER SWITCH PS3-22SPA-P7AZ (TV-8)
RY901 063 OZT-SS-112LM1 RELAY (AC-LINE) DC12V TV-8
RY101,RY201,RY301,RY401 063 DG2SU-24 RELAY (SPEAKER) DG24D2-OS(M)
S201,301,401,701 064 4TR-2341 SLIDE SWITCH SSSU122NB1
C923,924 044 DE1307E472M SPARK KILLER 4700pF
L101,102,201,202,301,302,401,402 021 TRL-332 SPEAKER COIL 1F 23T
SP1-SP4 067 C-4493A00 SPERKER TERMINAL (RBBR)
T002 022 T-1075N02 SUB TRANSFORMER
Q901 032 TC3708-ST TRANSISTOR 2SC3708AA-ST
VR101,201,301,401 051 C-4170A36 VARIABLE RESISTOR 50KBx2 (VOLUME)
D703 034 TRD12JST1 ZENER DIODE 12V
011 FP-552-B BLACK PANEL ASSY
011 FP-552-S SILVER PANEL ASSY
069 C-4629A01 AC 2P INLET 6102.3100 (WIRING)
072 C-4622A01 AC CORD SET for AUSTRALIA
072 C-4624A01 AC CORD SET for EUROPE
072 C-4623A01 AC CORD SET for U.K
072 C-4621A01 AC CORD SET SJT AWG16/2C for USA
069 C-4798A02 BANANA PLUG (BLACK)
069 C-4798A01 BANANA PLUG (RED)
011 UG3-01B00 H/S PANEL
081 UG3-12A00 INSIDE CARTON
034 SEL1E24W LED (BLU) 1X5 SEL1E24W
034 SEL1124R LED (RED) 1X5 SEL1124R
019 4TR-2823#2 PLASTIC FOOT 24Φ
019 4TSH-19#2 PLASTIC FOOT 50Φ
022 T-1087N01 POWER TRANSFORMER
012 RV4-09A00 PUSH BUTTON 14Φ(BLACK)
012 RV4-09A01 PUSH BUTTON 14Φ(SILVER)
081 UG3-13A00 SHIPPING CARTON
081 Z-205A STYROL MOULDING
013 TS3-03A01B SUB PANEL CHASSIS (BLACK)
013 TS3-03A01S SUB PANEL CHASSIS (SILVER)
082 OMRMB-1048 OWNER'S MANUAL (EFGISD)
O T H E R S

RMB1048
SYMBOL PARTS DESCRIPTION
011 FP-552-B BLACK PANEL ASSY
011 FP-552-S SILVER PANEL ASSY
011 UG3-01B00 H/S PANEL H109
012 RV4-09A00 PUSH BUTTON 14F (BLK)
012 RV4-09A01 PUSH BUTTON 14F (SLV)
013TS3-03A01B SUB PANEL CHASSIS (BLK)
013TS3-03A01S SUB PANEL CHASSIS (SLV)
034 SEL1124R LED (RED) 1X5
034 SEL1E24W LED (BLU) 1X5
Addendum List for Black and Silver
3
4
5

Instruments : DC milli-meter
Notes : Prior to Bias Adjustment, run about 5minutes with rated output (8 ohms)
And warm up Power Transistor and Heat Sink.Set input off.
Step
R133 or R135
R134 or R136
X-1334-01 PCB VR103
VR104X-1334-01 PCB
1
2
R233 or R235 VR203X-1334-01 PCB
3
R234 or R236 VR204X-1334-01 PCB
4
R333 or R335 VR303X-1334-02 PCB
5
R334 or R336 VR304X-1334-02 PCB
6
R433 or R435 VR403X-1334-02 PCB
7
R434 or R436 VR404X-1334-02 PCB
8
Coupling Location Adjust forAdjust
DC milli-voltmeter Reads 4mV
Adjustment
2SB631K
2SD600K
2SC536K
2SA608K
2SA1016K
2SC1941 UPC1237HA
Case Outline
RMB-1048
2SB817P
2SD1047P
PC817B

PCB Assembly -1
016 X-1334A01-02
RMB-1048

PCB Assembly - 2 016 X-1335B01-07 RMB-1048

Schematic Diagram -1/2 RMB-1048

Schematic diagram -2/2 RMB-1048