Akai AAR 21 AAR 31 Service Manual

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Akai AAR 21 AAR 31 Service Manual

Extracted text from Akai AAR 21 AAR 31 Service Manual (Ocr-read)


Page 2

AA-R21

STEREO RECEIVER

AA- R2 1
MODEL AA- R 3 1

SECTION 1 SERVICE MANUAL .................... 3
SECTION 2 PARTS LIST .......................... 31
SECTION 3 SCHEMATIC DIAGRAM ................ 42

AA—R31

Page 3

SECTION 1
SERVICE MANUAL

TABLE OF CONTENTS

I. TECHNICAL DATA ....................................... 4
1. MODEL AA-R21 ...................................... 4
2. MODEL AA-R31 ...................................... 5
II. DISMANT LING OF UNIT ................................... 6
III. CONTROLS ............................................ 7
1. MODEL AA-R2] ....................................... 7
2‘ MODEL AA-R3l ....................................... 8
IV‘ PRINCIPAL PARTS LOCATION .............................. 9
V. VOLTAGE CONVERSION .................................. II
VI. AMPLIFIER ADJUSTMENTS ................................ 12
VII. TUNER ADJUSTMENTS ................................... 14
1, FM SECTION ADJUSTMENTS ............................. 16
2. AM SECTION ADJUSTMENTS ............................. 19
VIII. CLASSIFICATION OF VARIOUS P.C BOARDS ................... 19
1. PC BOARD TITLES AND IDENTIFICATION NUMBERS ........... l9
2. COMPOSITION OF VARIOUS P.C BOARDS .................... 20

For basic adjustments, measuring methods, and operating principles, refer to GENERAL TECHNICAL
MANUAL.