SR4021
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
Receiver
SR4021 /
N1B/N1S/U1B
Part no. 90M13CW855010
First Issue 2006.06
MZ
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ........................................................................................... 1
2.
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
BALANCE
SPEAKERS
SOURCE
DIRECT
DISPLAY OFF
TREBLE
T-MODE
CLEAR
AUTO TUNE
MEMORY
DVD
DSS
DOWN
VOLUME
MULTI JOG
RECEIVER SR4021
SLEEP
DIMMER
MUTE
STANDBY
PHONES
POWER ON/OFF
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