Pioneer SA 800 Service Manual

Page 1

Sen/ice mutiny

STEREO AMPLIFIER

SA-BOO/Fvw, KUW, ch

NOTE
MODEL SA-8OO COMES IN THREE VERISIONS DISTINGUISHED AS FOLLOWS:

Round label on

Voltages Type
rear panel

KUW 120V only UL approved (U.S.A.)
FVW 5-position selector General export model
KCW 120V only CSA approved (Canada)

PFONEEJT

Page 2

SA-BDD

CONTENTS
1. SPECIFICATIONS .................................................... 1
2. FRONT PANEL FACILITIES ...................................... .. . 3
3. CONNECTION DIAGRAM ............................................. 5
4. CIRCUIT DESCRIPTION
4-1 Block diagram ....................................................... 7
4.2 Low level input circuits ................................................ 9
4-3 Head am plifier circuit .................................................. 9
4-4 High level inputs and control circuits ...................................... 9
4-5 Control amplifier circuit ................................................ 9
46 Filter ................ . .............................................. 9
47 Power amplifier circuit ................................................. 9
48 Protector circuit ...................................................... 9
49 Power supply circuit ................................................... 9
5. DISASSEMBLY '
5-1 Wooden case ......................................................... 10
5-2 Front panel ......................................................... 10
5-3 Bottom plate ........................................................ 10
5 4 Parts and PCB locations ................................................ 11
6. ALIGNMENT PROCEDURES
6-1 DC neutral voltage & detector circuit adjustment ............................. 12
6 2 Idle current adjustment ................................................ 12
7. SCHEMATIC DIAGRAMS AND PCB PATTERNS ....................... 13
8. PARTS LIST .......................................................... 22
9. PACKING METHOD AND PARTS .................. ' ................... 35