Rotel RA921 User Manual

RA921

Stereo Integrated Amplifier

OWNERS MANUAL

THE ROTEL CO., LTD.

SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU, TOKYO 150, JAPAN

Please write the serial number, date of purchase and the name of Rotelhi fi Authorized
Dealer in the spaces provided for your future reference.

Serial number . Purchase date .

Rotel hi fi Authorized Dealer .

Y-298A-E-9710F/S-RG

082OMRA-921

PRINTED IN JAPAN

SAFETY INSTRUCTIONS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE

COVER(OR BACK). NO USER-SERVICEABLE

PARTS INSIDE. REFER SERVICING TO

QUALIFIED SERVICE PERSONNEL.

¥ Explanation of Graphical Symbols

The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert you to the
presence of uninsulated dangerous voltage within the
product s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is

intended to alert you to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.

1. Read Instructions - All the safety and operating instructions should
be read before the appliance is operated

2. Retain Instructions - The safety and operating instructions should
be retained four for future reference.

3. Head Warnings - All warnings on the appliance and in the operating
instructions should be adhered to.

4. Follow Instructions - All operating and other instructions should be
followed.

5. Water and Moisture - The appliance should not be used near water

- for example, near a bathtub, washbowl, kitchen sink, Iaundry tub, in a
wet basement, or near a swimmingpool, etc.

6. Carts and Stands - The appliance should be used only with a cart
or stand that is recommended by the manufacturer.

PORTABLE CART

WARNING

S3125A

7. Wall or Ceiling Mounting - The appliance should be mounted to a
wall or ceiling only as recommended by the manufacturer.

8. Ventilation - The appliance should be situated so that its location or
position does not interfere with its proper ventilation. For example, the
appliance should not be situated on a bed, sofa, rug, or similar surface
that may block the ventilation openings; or placed in a built-in
installation, such as a bookcase or cabinet that may impede the flow of
air through the ventilation openings.

9. Heat - The appliance should be situated away from heat sources
such as radiators, stoves, or other appliances that produce heat.

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APPLICABLE FOR USA, CANADA OR WHERE
APPROVED TO THE USAGE

CAUTION : TO PREVENT ELECTRIC SHOCK, MATCH

WIDE BLADE PLUG TO WIDE SLOT, INSERT FULLY .

ATTENTION : POUR EVITER LES CHOCS
ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE
DE LA FICHE DANS LA BORNE CORRESPONDANTE DE
LA PRISE ET POUSSER JUSQU AU FOND.

10. Power Source - The appliance should be connected to a power
supply only of the type described in the operating instructions or as
marked on the appliance.

11. Power-Cord Protection - Power-supply cords should be routed so
that they are not likely to be walked on or pinched by items placed upon
or against them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from the
appliance.

12. Cleaning - The appliance should be cleaned only as
recommended by the manufacturer.

13. Nonuse Periods - The power cord of the appliance should be
unplugged from the outlet when left unused for a long period of time.

14. Object and Liquid Entry - Care should be taken so that objects do
not fall into and liquids not spilled into the inside of the appliance.

15. Damage Requiring Service - The appliance should be serviced by
qualified service personnel when:

A. The power-supply cord or the plug has been damaged; or

B. Objects have fallen, or liquid has been spilled into the appliance; or

C. The appliance has been exposed to rain; or

D. The appliance does not appear to operate normally or exhibits a

marked change in performance; or

E. The appliance has been dropped, or the cabinet damaged.

16. Servicing - The user should not attempt to service the appliance
beyond those means described in the operating instructions. All other
servicing should be referred to qualified service personnel.

- The precautions that should be taken so that the grounding or
polarization means of an appliance is not defeated.

POOR, DULL SOUND ARE THE HEADS DIRTY? HEADS MAGNETIZED FROM LONG
WOW & FLUTTER USAGE WITHOUT DEMAGNETIZING? ARE THE PINCH
(TAPE DECK) ROLLER AND THE CAPSTAN DIRTY? CLEAN WITH PURE

ALCOHOL, Q TIP COTTON BUDS OR A TAPE DECK
CLEANING KIT. DEMAGNETIZE THE HEADS WITH A HAND
HELD DEMAGNETIZER. DO NOT USE ABRASIVE DRY
CLEANERS!

DISTORTED BASS OVERLOADING SMALL SPEAKERS?

TOO LOUD VOLUME CLIPPING YOUR AMPLIFIER?

HUM IN SYSTEM AC CORD, VIDEO, DIGITAL AND AUDIO CABLES TOUCHING?

THE AC CORD SHOULD BE SEPARATE FROM SIGNAL CABLES

SIGNAL CABLES LAYING NEAR A LARGE POWER
TRANSFORMER, SUCH AS IN A POWER AMPLIFIER?
DEFECTIVE OR UNSHIELDED SIGNAL CABLES?

OVERHEATING IS A COMPONENT STACKED ON THE AMPLIFIER?

IS THE AMPLIFIER ENCLOSED IN A SMALL SPACE? A

MINIMUM OF 3 TO 4 (~8-10 CM) CLEARANCE IS NEEDED
ABOVE THE AMPLIFIER IN A SYSTEM. DO NOT STACK
COMPONENTS ON THE AMPLIFIER. AN AMPLIFIER NEEDS TO

BREATHE FREELY TO STAY COOL.

POOR RECEPTION IS THE ANTENNA CONNECTED PROPERLY? IS THE
(FM RADIO) ANTENNA MOUNTED AS HIGH AS POSSIBLE? IS THE

ANTENNA ORIENTED FOR BEST RECEPTION? IS THE FM
STATION DISTANT? AN OUTDOORS ANTENNA MAY BE

NECESSARY. ADJUST THE ANTENNA FOR BEST RECEPTION.

NOISY RECEPTION IS THE ANTENNA CONNECTED PROPERLY? IS THERE A
(AM RADIO) LARGE ELECTRICAL MOTOR OR COMPRESSOR NEAR THE

TUNER OR ANTENNA? NOISE IS EASILY RECEIVED IN THE AM

BAND. ADJUST THE ANTENNA FOR BEST RECEPTION AND
MINIMUM INTERFERENCE.

CONTINUED PROBLEMS? ASK YOUR ROTELhi fi AUTHORIZED DEALER FOR HELP.

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