Pioneer SA 7100 Service Manual

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SERVICE MANUAL

STEREO AMPLIFIER

SA- 7100

KUW,FVW

NOTE:

MODEL SA-7100 COMES IN TWO VERSIONS DISTINGUISHED AS FOLLOWS:

Round label on
rear panel Voltage Type
KUW 120V only UL approved (U.S.A.)
FVW 5-position selector General export model

PIONEEIT

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91:59.?

10.

11.
12.

SA-71 OD

CONTENTS

SPECIFICATIONS ..................................
FRONT PANEL FACILITIES ..........................
CONNECTION DIAGRAM ............................
BLOCK DIAGRAM ............................ ' ......

CIRCUIT DESCRIPTION

5.1 Equalizer Amp ..................................
5.2 Control Amp ....................................
5.3 Power Amp ....................................

5.4 Protection Circuitry ................................

DISASSEMBLY

6.1 Wooden Cabinet ..................................
6.2 Front Panel . . . . ................................
6.3 Bottom Panel ....................................

PARTS AND P.C. BOARD LOCATION

7.1 Top View ......................................
7.2 Bottom View ....................................

ALIGNMENT PROCEDURE

8.1 Protection Circuit Check ............................
8.2 Idle Current Adjustment ............................
8.3 Mid-point Potential Adjustment ........................

EXPLODED VIEW AND PARTS LIST ..................

SCHEMATIC DIAGRAMS, P.C. BOARD PATTERNS AND
PARTS LIST

10.1 Unit Connection Diagram and Miscellaneous Parts ............
10.2 Equalizer Amp Unit ............. I ...................
10.3 Control Amp Unit ................................
10.4 Lever Switch Unit ................................
10.5 Power Supply Unit ................................
10.6 Push Switch Unit ................................
10.7 Protection Unit ..................................
10.8 Power Amp Unit ..................................
SKELETON APPEARANCES OF TRANSISTORS --------

PACKING METHOD AND PART NUMBERS ............

2
5
7
9

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