Pioneer SA-620 Service Manual

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rqoNEEFl'
ORDER
NO.
ART-
640-O
MODEL
5A-620
COMES
IN SIX
VERSIONS
DISTINGUISHED
AS
FOLLOWS:
O
o
a
This service
manual
is applicable
to the
KU
type
(pp.
1
-
18),
yp
typg
(pp.
19.-
26) and
S'
S/G
types
lpp.
27
-
g2l.Wtren
iËpairing
the
HE, He
ty'pes,'please
see
tlre
additional
service
manua!
(ART-641).
For
the
circuit
oescrùtlon,
pteàse
refer
io
the
-supplôment
of model
SA-720
service
manual
(ART'765)'
Ce manuel
d'instruction
se refère
au
mode
de réglage,
en
français.
Este
manual
de
servicio
trata
del
inétodo
de
aiuste
escrito
en
espaffol'
CONTENTS
SPECIFICATIONS
.
FRONT
PANEL
FACILITIES
BLOCK
DIAGRAM
PARTS
LOCATION
EXPLODED
VIEWS
P.C. BOARDS
CONNECTION
DIAGRAM
SCHEMATIC
DIAGRAM
1.
2.
3.
4.
5.
6.
7.
2
3
4
5
6
8
11
ELECTRICAL
PACKING
. .
PARTS
LIST .
10.
ADJUSTMENTS
nÉclncE
AJUSTE.....
ADD]TIONAL
SERVICE
MANUAL
FOR
YP,
S
AND
S/G
TYPES
13
15
16
17
18
19
ll
Type
Voltage
Remarks
KU
120V
only
U.S.A.
model
s
110V,
120V,
220V and
240V
(Switchablel
General
export
model
S/G
110V,
120V,220V
and
240V
(Switchable)
U.S.
Military
model
YP
24OV
onlY
Australia
model
HE
22OY
and
2ztOV
(Switchablel
Europe
model
HB
22OV
urd
24Ov
(Switchablel
United
Kingdom
model
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APR.1981
Printed
in
laPan

Pioneer SA-620 Specifications

General

Brand	Pioneer
Model	SA-620
Category	Amplifier
Language	English

Summary

3. BLOCK DIAGRAM

1. SPECIFICATIONS

Amplifier Section Specifications

Details electrical characteristics, power output, distortion, and frequency response.

Miscellaneous Specifications

Covers power requirements, dimensions, weight, and supplied accessories.

2. FRONT PANEL FACILITIES

Front Panel Controls Overview

Describes the function and operation of all controls and indicators on the front panel.

4. PARTS LOCATION

Exterior Components List

Lists and identifies all external parts of the unit.

Interior Components List

Lists and identifies all internal components of the unit.

Front Panel Views

Detailed visual guides of the front panel and its removed state.

Rear Panel View

Detailed visual guide of the rear panel connections and ports.

7. SCHEMATIC DIAGRAM

6. P.C. BOARDS CONNECTION DIAGRAM

5. EXPLODED VIEWS

Exploded Exterior Components

Visual representation of the unit's exterior parts for assembly or disassembly.

Exploded Interior Components

Visual representation of the unit's interior parts for assembly or disassembly.

8. ELECTRICAL PARTS LIST

Miscellaneous Electrical Parts

Lists general electrical components not categorized by type.

AF Assembly Capacitors

Lists the specific capacitors used in the AF Assembly.

Resistors List

Lists all resistors with their part numbers and values.

9. PACKING

Packing Materials

Details the packaging components for safe transport.

Operating Instructions

The user manual included with the product.

Packing Case

The container used for shipping the unit.

10. ADJUSTMENTS

Idle Current Adjustment Procedure

Steps to set the quiescent current for optimal amplifier performance.

Output Indicator Adjustment Procedure

Steps to calibrate the output power level indicator for accuracy.

ADDITIONAL SPECIFICATIONS

Model Variations Specifications

Specifications for YP, S, and S/G models, highlighting differences from the KU type.

CONTRAST OF MISCELLANEOUS PARTS

P.C. Board Assembly Comparison

Compares part numbers for AF assemblies across different model types.

Electrical Parts Comparison

Compares part numbers for electrical components across different model types.

Packing and Furnished Parts Comparison

Compares part numbers for packing and accessories across different model types.