Denon DRA 325R Service Manual

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D E N O N Hi-FiAIVI-FIVI Stereo Receiver

MODEL DRA- 325R

AM-FM STEREO RECEIVER

TAB LE OF CONTENTS

OPERATING INSTRUCTIONS ............................................... 2 ~11
REMOVAL OF EACH SECTION ............................................. 1213
METHOD OF ADJUSTMENTS ............................................... 14,15
SEMICONDUCTORS ..................................................... 16,17
BLOCK DIAGRAM ................ v ........................................ 17
PRINTED WIRING BOARD PATTERNS

1U-1814 AMP TUNER UNIT ................................................ 18

1U-1815 DISPLAY UNIT .................................................. 19
PRINTED WIRING BOARD PARTS LIST

1U-1814 AMP TUNET UNIT ............................................... 20

1U 1815 DISPLAY UNIT .................................................. 21
WIRING DIAGRAM ........................................................ 22
SCHEMATIC DIAGRAM ..................................................... 23
EXPLODED VIEW OF CHASSIS AND CABINET & PARTS LIST .......................... 24
ADDENDUM LIST ......................................................... 25

NIPPON COLUMBIA CO.. LTD.

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_ BRA-325R

PRECAUTIONS FOR INSTALLATION
DRA»325R uses a newly developed heat emitting unit by employing heat pipes. Since the heat pipes contain a coolant, the ORA-325R must
be set level or the desired heat emitting effect cannot be achieved. Always install this unit horizontally.

PRECAUTIONS DE MISE EN PLACE

Le BRA-325R emploie une unité thermique noubellement développee comportant des tuyaux thermiques. Ces tuyaux contenant un
liquide réfrigérant toujours placer le ORA-325R en position horizontale, laute de quoi leffet de radiation thermique ne pourra étre obtanu.
Toujours placer cet appareil en position horizontale.

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/

PRECAUTIONS FOR INSTALLA110N
Leave at least 100m of space between this unit and
any other component placed above.

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PRECAUTIONS D'INSTALLATION
Prévoir un espace d'au moins 10cm entre l'unité et

tout autre appareil se trouvant au-dessus. 10cm or greater

loom en plus

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V

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (0R BACK). NO USER SERVICE-
ABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED ,, .
SERVICE PERSONNEL.

The lightning flash with arrowhead symbol, within an equilateral triangle,
is intended to alert the user to the presence of uninsulated "dangerous
voltge" within the products 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 the
user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.

ATTENTION t
POUR PREVENIR LES cnocs ELECTRIOUES NE PAS UTILISER

CAUTION

TO PREVENT ELECTRIC SHOCK DO NOT USE THIS (POLA-
RIZED) PLUG WITH AN EXTENSION CORD, RECEPTACLE OR
OTHER OUTLET UNLESS THE BLADES CAN BE FULLY IN-
SERTED TO PREVENT BLADE EXPOSURE.

CE'ITE FICHE POLARISEE AVEC UN PROLONGATEUR UNE
PRISE DE COURANT 0U UNE AUTRE SORTIE DE COURANT,
SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS
EN LAISSER AUCUNE PARTIE A DECOUVERT.