SR4021

Please use this service manual with referring to the user guide ( D.F.U. ) without fail.

Service

Manual

SR4021

Receiver

SR4021 /

N1B/N1S/U1B

Part no. 90M13CW855010

First Issue 2006.06

TABLE OF CONTENTS

SECTION PAGE

1. TECHNICAL SPECIFICATIONS ........................................................................................... 1

SOFTWARE VERSION CHECK ........................................................................................2

3. ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE ................................ 2

4. WIRING DIAGRAM .............................................................................................................. 3

5. BLOCK DIAGRAM ............................................................................................................... 5

6. SCHEMATIC DIAGRAM ...................................................................................................... 7

7. PARTS LOCATION .............................................................................................................11

8. MICROPROCESSOR AND IC DATA ...................................................................................21

9. EXPLODED VIEW AND PARTS LIST ............................................................................... 25

10. SERVICE PROCEDURE .................................................................................................... 29

11. ELECTRICAL PARTS LIST ................................................................................................ 30

RECORDER

F/P

F/PBAND

BALANCE

SPEAKERS

SOURCE

DIRECT

SPEAKERS

DISPLAY OFF

BASS

TREBLE

VCR

T-MODE

CLEAR

AUTO TUNE

MEMORY

DVD

DSS

DSS21 AUXTUNERCDPHONO

DOWN

VOLUME

MULTI JOG

RECEIVER SR4021

SLEEP

DIMMER

MUTE

STANDBY

PHONES

POWER ON/OFF

Marantz SR4021 - Page 23

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