Pioneer SA 8500 Mk2 Service Manual

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1. STEREO AMPLIFIER

; SERVICE MANUAL

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SA-BEODII

MODEL SA-85OOII COMES IN FOUR VERSIONS DISTINGUISHED AS FOLLOWS:

Type Voltage Remarks
KU 120V only UL (U.S.A.) approved
KC 120V onlv CSA (Canada) approved

SEMKO (Sweden), NEMKO (Norway), DEMKO (Denmark)

HG 220V and 240V (Switchable) and El (Finland) approved

S 110V, 120V, 220V and 240V (Switchable) General export model

This service manual is applicable to the KU-type. When reparing the KC-type, HG-type or S-type,
please see the additional service manual.

CONTENTS

1. SPECIFICATIONS ..................................................... 5
2. CONNECTION DIAGRAM .............................................. 6
3. FRONT PANEL FACILITIES ............................................ 7
4. BLOCK DIAGRAM .................................................... 9
5. CIRCUIT DESCRIPTIONS
5.1 Equalizer Amplifier ................................................ 11
5.2 Tone Controls .................................................... 11
5.3 Power Amplifier ................................................... 12
5.4 Protection Circuit .................................................. 13
5.5 Power Supply Circuit ............................................... 14
6. LEVEL DIAGRAM . . . . ................................................ 15
7. DISASSEMBLY ....................................................... 16
8. PARTS LOCATION
8.1 Front Panel View .................................................. 18
8.2 Front View with Panel Removed ...................................... 19
8.3 Top View ........................................................ 20
8.4 Bottom View ..................................................... 21
8.5 Rear View ....................................................... 22
9. ADJUSTMENT ....................................................... 23
10. EXPLODED VIEWS .................................................... 24