Pioneer A-449 Service Manual

@Y
PIONEER’
The Art of Entertainment
Service
PAZ EYED
ORDER NO.
ARP2215
STEREO AMPLIFIER
A-449S
A-4493-S—
A-339
A-339-S
A-449, A-449-S, A-339 AND A-339-S HAVE THE FOLLOWING :
Model
T Power Requirement
LO] = [acmvay SSC—C~iSCCS
oe
ewe) OO] 0 | 0) Acazaasev, aovewitaney®
pO PO | Acnovaaovaary, ov, woven
Kc Ss es
* Change the primary wiring.
@ Refer to the service manual ARP2043, A-447/HE and A-337/HE.
© This manual is applicable to the A-449/HE, HEWZ, SD, KC, A-449-S/HEWZ, A-339/KU, HE, HEWZ, SD,
and A-339-S/HEWZ types.
@ The A-449-S is the same as the A-449 except for color.
@ The A-339-S is the same as the A-339 except for color.
CONTENTS
1. FOR A-449/HE, HEWZ, SD, KC AND A-449-S/HEWZ
TYPES dade rece rere e ee ee eee sree reece es esses sees esses esesesessesssecees 2
2. FOR A-339/KU, HE, HEWZ, SD AND A-339-S/HEWZ
TYPES PPP ETUTTTETESTTTTTTT ITT eer 17
PIONEER ELECTRONIC CORPORATION = 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 505 Cochrane Drive, Markham, Ontario L3R 8E3 Canada
PIONEER ELECTRONIC [EUROPE] N.V. Keetbergiaan 1, 2740 Beveren, Belgium
PIONEER
ELECTRONICS
AUSTRALIA
PTY.
LTD.
178-184
Boundary
Road,
Braeside,
Victoria
3195,
Australia
TEL:
[03]
580-9911
©
PIONEER
ELECTRONIC
CORPORATION
1991
FV
APR.
1991
Printed
in
Japag
7,

Pioneer A-449 Specifications

General

Brand	Pioneer
Model	A-449
Category	Amplifier
Language	English

Summary

1. FOR A-449/HE, HEWZ, SD, KC AND A-449-S/HEWZ TYPES

1.2 P.C.B's PARTS LIST

1.3 SCHEMATIC DIAGRAM

Provides the circuit diagram for the A-449 series.

1.4 P.C.BOARDS CONNECTION DIAGRAM

Shows how PCBs connect within the A-449 unit.

2. FOR A-339/KU, HE, HEWZ, SD AND A-339-S/HEWZ TYPES

2.2 P.C.B's PARTS LIST

2.4 P.C.BOARDS CONNECTION DIAGRAM

Shows how PCBs connect within the A-339 unit.

1. SAFETY INFORMATION

1. SAFETY PRECAUTIONS

Essential safety checks and procedures for servicing.

2. PRODUCT SAFETY NOTICE

Highlights specific safety characteristics of components.

3. FOR A-447/HE TYPE

3.1 SCHEMATIC DIAGRAM

Circuit diagram for the A-447/HE model.

3.2 P.C. BOARDS CONNECTION DIAGRAM

3.3 P.C.B's PARTS LIST

3.4 ADJUSTMENT

4. FOR A-337/HE TYPE

4.1 SCHEMATIC DIAGRAM

Circuit diagram for the A-337/HE model.

4.2 P.C. BOARDS CONNECTION DIAGRAM

4.3 P.C.B's PARTS LIST

8. SPECIFICATIONS

A-447 and A-337 Specifications