Pioneer F-449 Service Manual

@ PIONEER
The Art of Entertainment
Service
PALEY IEY
FM/AM DIGITAL SYNTHESIZER TUNER
=449
F-449-S
F-449L
F-449, F—-449-S AND F-449L HAVE THE FOLLOWING:
Power Requirement Remarks
F-449-S | F-449L
- AC220V-230V, 240V (switchable) *
et ORDER NO.
= ARP2243
AC220V-230V, 240V (switchable) *
AC220V-230V, 240V (switchable) *
AC220V-230V, 240V (switchable) *
HEWX1B - AC220V-230V, 240V (switchable) *
AC120V only
AC110V, 120-127V, 220V, 240V
(switchable)
* Change the primary wiring of the power transformer.
@ This manual is applicable to the F-449/HEWZ, F-449-S/HEWZ, F-449L/HE and HB
types.
@ As to the F-449-S/HEWZ, F-449L/HE and HB types, refer to page 30.
@ As to the other types, refer to applicable service manuals.
@ The F-449-S is the same as the F—449 except for color.
@ The F-449L covers MW/LW bands while the F-449 covers MW only.
@ Ce manuel pour le service comprend les explications de réglage en frangais.
@ Este manual de servicio trata del método ajuste escrito en espanol.
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. Keetberglaan 1, 9120 Beveren, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL: [03] 580-9911
© PIONEER ELECTRONIC CORPORATION 1991 ty Soar aeaivnnee daar

Pioneer F-449 Specifications

General

Brand	Pioneer
Model	F-449
Category	Tuner
Language	English

Summary

1. SAFETY INFORMATION

1. SAFETY PRECAUTIONS

Check leakage current to earth ground. Max 0.5mA.

2. PRODUCT SAFETY NOTICE

Special safety characteristics of parts. Marked with A.

2. EXPLODED VIEWS, PACKING AND PARTS LIST

Parts List

List of component parts with mark numbers and descriptions.

3. SCHEMATIC DIAGRAM

3.1 DISPLAY ASSEMBLY (AWP1036)

Schematic diagram for the display assembly.

3.2 TUNER ASSEMBLY (1/2) (AWZ3643)

Schematic diagram for the tuner assembly (part 1).

3.3 TUNER ASSEMBLY (2/2) (AWZ3643) AND POWER ASSEMBLY (AWZ3649)

Schematic for tuner (part 2) and power assembly.

4. P.C. BOARDS CONNECTION DIAGRAM

5. P.C.B.'S PARTS LIST

6. ADJUSTMENTS

6.1.1 FM MONO

Adjustments for FM mono reception.

6.1.2 FM STEREO

Adjustments for FM stereo reception.

6.1.3 FM ETC

Additional FM tuning adjustments.

6.2 AM TUNER ADJUSTMENTS

Adjustments for AM reception.

8. SPECIFICATIONS

FM Tuner Section

Technical specifications for FM tuner.

AM (MW) Tuner Section

Technical specifications for AM (MW) tuner.

LW Tuner Section

Technical specifications for LW tuner.

Audio Section

Technical specifications for audio section.

Miscellaneous

General specifications like power and dimensions.

Furnished Parts

List of included accessories.

9.2 PANEL FACILITIES

1 POWER (STANDBY/ON) switch/indicator

Description of the power switch and its indicator light.

2 MPX (multiplex) MODE button

Controls stereo/mono mode for FM reception.

3 RF ATT button

Reduces sound distortion for strong FM signals.

4 BAND selector buttons

Buttons to select FM or AM broadcast bands.

5 IF BAND button

Switches IF circuit bandwidth for FM reception.

6 MEMORY button

Used to memorize preset stations.

7 TUNING UP/DOWN buttons

Buttons to tune in broadcasting stations.

8 STATION CALL buttons

Buttons to receive already preset stations.