Sony ta f 448 e service manual

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TA-F448E

SERVICE MANUAL

AEP Model
UK Model
Austral/an Model

SPECIFICATIONS
Amplifier section General
DIN power output System

65W+ 85 W(4 ohms ati kHz)
55 W + 55 W (8 ohms at] kHz)

total harmonic distortion
Less than 0.008% (at 10 W output)

Frequency response
PHONO (20 Hz - 20 kHz): RIAA equalization curve
+ /- 0.5 dB
TUNER, CD, AUX, TAPEI /DAT, TAPEZ/MD (7 Hz -
IOO kHz): +0/-3 dB

SIN (network A)
PHONO: 94 dB
TUNER, CD. AUX, TAPEl /DAT, TAPEZ/MD: 105 dB

Output voltage I impedance
RECOUT: 150 mV,l kilohm
PHONES: l0 mW (at 8 ohms)

Speakers impedance
4 - 16 ohms

Damping tutor
100 (8 ohms, l kHz)

Power amplifier: Pu re-complementary SEPI OCL
power amplifier with all stages directly coupled
Preamplifier: Low'noise, equalizer amplifier

Power requirements
220 - 230 V AC, 50/60 Hz

Power consumption
180 W

Dimensions (approx) (wlhld)
430 x135 X365 mm
incl. projecting parts and controls

Mas: (approx)
68 kg

Design and specifications are subject to change without
notice.

INTEGRATED STEREOAMPLIFlER
S 0 NY;

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TABLE OF CONTENTS

Specification ................................................................. 1
1. GENERALI..._.............., ......................................... 3
2. ELECTRICAL ADJUSTMENTS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4
34 DIAGRAMS

3~1. Circuit Boards Locationm
3-2. Printed Wiring Boards
3.3. Schematic Diagram .............................................. 11

4. EXPLODED VIEWS
4~1. Front Panel Section
4-2. Chassis Section ~-

5. ELECTRICAL PARTS LIST ---------------------------------- 17

SAFETY-RELATED COMPONENT WARNINGII

COMPONENTS IDENTIFIED BY MARK & OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.