Rotel RB 985 Service Manual

Page 1

RDTEI-hffi'

RB-985

5 CHANNEL POWER AMPLIFIER

Technical Manual

TABLE OF CONTENTS

Chassis Layout ....................................................................... 1
Service to the Transformer ..................................................... 1
Specifications ......................................................................... 2
Adjustment ............................................................................ 2
PC Board Assy Parts List ...................................................... 3
Wiring Diagram ...................................................................... 6
Schematic Diagram ................................................................ 8
Printed Circuit Boards ............................................................ 14

THE RDTEI. CD.. |_TD.
1-35-8. OHOKAYAMA. MEGURO-KU, TOKYO 152. JAPAN

HOTEL. ELECTRONICS CD" LTD. MN20002292
3F-2, N035, FU HSING NORTH ROAD, TAIPEI. TAIWAN, REPUBLIC OF CHINA

Page 2

Chassis Layout

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IMPORTANT

When replace the Power Transformer, please ensure to fit back the Insulation Bush and
Insulation Plate between the Front Chassis and RT. Support to keep them insulation
completely. See the following illustration.

7 .s
\

FRONT CHASSXS

PJ SUPPORT

<9 0
lNSULATION PLAYE g

y /
If?

BTV 3:8 NI INSULAHON
BUSH