Rotel RB 990BX Service Manual

Page 1

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DTELL

Technical
Manual

Table of Contents

Specrtications . . . .
Wiring Diagram. . ,
Parts List . . . .
Adjustment. .
Schematic Diagra
PCB Assembly ..

Specifications

200 watts' per channel, min.
RMS both channels driven into
8 ohms lrom 20 to 20.000 Hz
with no more than 0.03%
total harmonic distortion
330 watts per channel (1kHz.
4 ohms. 1% THD)
Peak Current . 120 A
(01 ohms,10usec. 1 pulse)
Total Harmonic Distortion
(20 to 20,000 HZ) . . ..

Continuous Power Output ..

DIN Power Output ............

No more than 0.03% (con-

tinuous rated power output)

No more than 0.01% (con-

tinuous 1/2 rated power output)

No more than 0 02% (1 watt

per channel power output,

8 ohms)

lntermoduration Distortion
(60 Hz 7 kHz=41) .. No more than 0 02% (con-
tinuous rated power output)
No more than 0 02% (con-
tinuous 1/2 rated power output)
No more than 0 02% (1 watt
per channel power output.
8 ohms)

THE HOTEL (30., LTD.
HOTEL ELECTRONICS CO., LTD.

STEREO POWER AMPLIFIER

RB-QQOBX

Output .............
Damping Factor.
Input Sensrtwllyl

Impedance ..
Frequency Response.

. Speaker 8 ohms nomrnal
1,000 (20 to 20.000 Hz. 8 ohms)

1.0 Vl33 kohms
. 4 to 100.000 Hz, + 0.5 dB,
- 3 0 dB

Signal-to~Noise Ratio
(IHF A network).
Power Requrremen .

120 dB

.. 120 V/60 Hz, 220 Vl50 Hz.
240 V/SO Hz or 100 V/50 Hz-
60 Hz (depending on
destinations)

. 550 watts

,. 440 (W) x 120 (H) x 375 (D) mm

17-5/16"x 4-23/32 'x 14-3/4 "

15 5 kg/34.1 lbs.

Power Consumption
Dimensions (overall).

Weight (net).

- Specifications and desrgn subject to possible modification
Without notice

' Measured pursuant to the Federal Trade Commission's
Trade Regulation Rule on Power Claims tor Amplifiers
(applicable to the U.S.A. only).

Serial No.
Beginning

BUNZANASHINSEN-BLD 4F 1010 SHINSEN-CHO,
SHIBUYA-KU. TOKYO 150. JAPAN

3RD FLOOR. HOTEL BLDG . N0. 35 FUSHING, NORTH ROAD,
TAIPEI. TAIWAN, REPUBLICK OF CHINA