Rotel RB 981 Service Manual

Page 1

Wiring Diagram

Quality Uncalnpmmiserl

' l ' Ufitfifi if? tfiflfi%l 0 o E
TGChlllcal STEREO POWER AMPLIFIER l 5 EIu ;
E ii: 65

Manual RB-981

RIGHT {'

IVPLT
Fl

E
W

Table of Contents
Specification .....

v o 9 J z 0 9 t /
Wiring Diagram E SE
Parts List... 3 :3 <1 3
Adjustment .. u} E , P m i
PCB Assembly. ..5,6 5 u N .
Schematic Diagram .......................... 7,8 E i L1 7 7 %
. l2] 0 '4 ,
DE .
2 DE

Specification 2 0 9 d IO 9 J \ 777 g
m. . l. . . . . u
. o H S 2 2 S S D
Continuous Power Output (20-20 kHz, s 0.03%, 8 ohms) 130 watts/ch. 3 E Y: :9: m \ _ I H ~ ~ ECU 5
(20-20 kHz, S 0.05%, 4 ohms) 170 watts/Ch. F o 8 g LS7 . . l f:
Bridged Mono Power Output (20-20 kHz, S 0.1% THD, 8 ohms) 360 watts i g n H . D
Total Harmonic Distortion (20 Hz-20 kHz, 8 ohms) S 0.03% E E 3 at E97 2
Intermodulation Distortion (60 Hz : 7 kHz, 4:1) S 0.03% [e n S 3
Frequency Response 10-100,000 Hz,:r1 dB r3 | g l;
Damping Factor (20-20,000 Hz, 8 ohms) 500 i E m
Speaker Impedance (Normal mode) 4 ohms minimum , H > H m
(Bridged mode) 8 ohms minimum 0 m t» m 3 Is 4
Signal to Noise Ratio (lHFAnetwork) 120 dB 95 9 9 S 0 2 1290 6290 lSBD 7 CH3: a:
Input Impedance/Sensitivity 33 k Ohms/1.0 volt _ O :1 [:1 l: iniufia :| (:1 (:4 (61 0
Power Requirements 115 Volts, 60 Hz or ; ,é E, :2. ,j, 3 E g
230Volts,50 Hz 3 0 m 0 > m m 5
Power Consumption 400 Watts ., S \r
Dimensions (W, H, D) 440 x 121 x 327 mm 2
17.38 x 4.76 x12.87" >L
Weight(net) 10.3 kg.. 22.66 lb.
Q 3 u o o o o o 9 Neal
Lu 4 nr. m o t z a v
u: m to c 2
1207.4...le is :
{moi ficmt z s i ON 1005 5
N807 N c g 1;) - D-
m 1 M H D 0 l0 0 s _-_
L4 m 0 °'
a H ° °._._J
THE ROTEL 00., LTD >
S ' |. NO. D
BUNZAN-SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU. 82";1 S N :
TOKYO 1500045, JAPAN 9 9 E " - s _
LL L)
<