Rotel RB 890 Service Manual
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Page 1
Quality Untomwomued
OTEH
Technical
Manual
Table of Contents
Specifications ...........
Adjustment .............
Parts List .
Wiring Diagram ..........
Schematic Diagram ........
Specifications
Continuous Power Output _ _ . .
Power Output (BTL) ........
Total Harmonic Distortion . . . .
(20 to 20,000 Hz)
lntermodulation Distortion . , . .
(60Hz:7 kHz=4:1)
........... 1
........... 2
.2
,3~s
........... 7
160 watts' per channel, min.
RMS both channels driven Into
8 ohms from 20 to 20,000 Hz
with no more than 0.03% total
harmonic distortion.
360 watts (mono) min. RMS
driven into 8 ohms from 20 to
20,000 Hz with no more than
0.03% total harmonic distortion.
No more than 0.03% (continuous
rated power output)
No more than 0.03% (continuous
1/2 rated power output)
No more than 0.03% (1 watt per
channel power output, 8 ohms)
No more than 0.03% (continuous
rated power output)
No more than 0.03% (continuous
1/2 rated power output)
No more than 0.03% (1 watt per
channel power output, 8 ohms)
Output : Speaker ..........
Damping Factor ..........
Input Sensitivity/Impedance . . .
Frequency Responce .......
Signal-to-Noise FIatio
(IHF, A network) .....
Power Reouiement ........
Power Consumption .......
STEREO POWER AMPLIFIER
RB-89O
4-16 ohms
380(20 to 20,000 Hz, 8 ohms)
1.0V/22 kohms
15 to I30,000 Hz, +0dB,-1dB
120 dB
120V/60 Hz, 220V/50 Hz.
24OV/50 Hz, or 120, 220.
240V/50-60 Hz
(depending on destinations)
800 watts
Dimensions (overall) ....... 430(W) X 109(H) X 349(0) mm
Weight (net) ............
16-15/16" x 4-7/32.. X 1343/4
13 kg/28.7lbs.
OSpecifications and design subiect to possible modification without
notice.
O'Measured pursuant to the Federal Trade Commission's Trade
Regulation Rule on Power Claims for Amplifiers (applicable to the
USA. only).
THE ROTEL CO., LTD.
HOTEL ELECTRONICS CO., LTD.
Serial No,
Beginning
173678 OHOKAYAMA, MEGUROVKU, TOKYO I52, JAPAN
3RD FLOOR, ROTEL BLDG . NO 35 FUSHING, NORTH
ROAD, TAIPEI, TAIWAN, REPUBLICK OF CHINA
Page 2
Parts List
0601 03228A1016K-FG
0602 03225A1016K-FG
0603 03228A1016K-FG
0604 0322SA1016K-FG
0605 032ZSA1016K-F0
0606 03228A1016K»FG
0607 0332SA1208-RST
0608 03328A1208-R8T
0609 fiO3328C2910-RST
0610 fi03325C2910-RST
0611 #03228C536K-FG
0612 fi03225C536K-FG
0613 fi0332802910-RST
0614 fi03328C2910-R8T
0615 032280600K-EF
0616 032280600K-EF
0617 0332802344vDE
0618 0332802344-DE
0619 03328A1011-DE
0620 03328A1011-DE
0621 03328C2706-0Y or
0332801047-DE
0622 03328C2706-0Y or
03328D1047-DE
0623 03325C2706-OY or
0332801047-DE
0624 0332862706-OY or
0332801047-DE
0625 03328C2706»0Y or
0332801047-05
0626 0332802706-OY or
O332801047-DE
0627 03328C2706-0Y or
0332801047-DE
0628 033ZSC2706-0V or
0332801047-DE
0629 03328A1 146-OY or
033283817-DE
0630 O3328A1 146-0Y or
033288817-DE
0631 03328A1 146-OY or
033283817-DE
Driver
Driver
Driver
Driver
Power Driver
Power Driver
Power Driver
Power Driver
Power Driver
Power Driver
Power Driver
Power Driver
Power Driver
Power Driver
Power Driver
033288817-DE
0901 0322802362K-FG
0601 91034151588
sfgceargexc Computer No. wam We Computer No. Description
TRANSISTORS, DIODES AND IC'S 0536 03325A1 146-OY or Power Driver
0602 fi0341$1588
0603 {3034151588
D604 9034181588
D605 034151588
0606 0341 $1 588
0607 034151588
0608 0341 $1 588
0609 034DS135C
0610 03405135C
D611 034DS135C
0612 03408135C
0901 034181588
0902 0341 S1 588
0903 034081350
0001 034SEL1 124R Protection Ind
0002 034$EL1 124R Power Ind.
D003 034K8FC10-04 Rectifier
0004 034KBPC10-O4 Rectifier
VARIABLE RESISTORS
VR601 051SF687A-2K Bias Adi.
V8602 051 SF687A-2K Bias Adi,
OTHERS
TH602 034T0503500 Temperature Compensator
C001 041C-4315AO1 Capacitors 2 80V 15000pF
C002 O41C-4315A01 Capacitors : 80V 15000PF
6003 041C<4315A01 Capacitors : 80V 15000HF
C004 041C-4315A01 Capacitors : 80V 15000pF
COOS 044NSK135 Safety Capacitors (STD)
044FME265MA447 Safety Capacitors (Europe)
044NSK132 Safety Capacitors (Hydro)
T001 022T-1011GO1
$001 061C»4176A02
RY901 0630RZ-85224L
frOG74TR-2267
Power Transformer
Power 8w : £88997 TV-8
Protection Relay
Speaker Terminal
0194TR-2274 Foot
0632 033ZSA1 146-0Y or Power Driver 01 1PC4-01A00 Front panel
033253817432 0143TUV-6323 Upper Cover
0633 03328A1 146~0Y or Power Driver 066C-4225A04 2P Pin Jack
033253317435 oe73m204533 Speaker Terminal (RED)
0634 O332$A1 146-OY or Power Driver 0673TR204584 Speaker Terminal (BLACK)
033258817-DE
0635 033281 146-0Y or Power Driver
033288817-DE xzMARK USED BEFOR SERIAL NO. 125749
Adjustment
Power Amplifier Bias Adjustment
Instruments : DC miIIi-voltmeter
Notes : Prior to Bias Adjustment, run about 5 minutes with rated output (8 ohms) and
warm up Power Transistor and Heat Sink. Set input off.
St Coupling L _ A d' .
ep Plus Lead Minus Lead ocatlon Just Adjust for
1 TP1 TP3 01615-1071 PCB VR601 _ .
2 TP2 TP4 016E-1072 PCB VR602 DC mIIII-voltmeter reads 4.4 mV