MICROFILM
TA-F448EB
INTEGRATED STEREO AMPLIFIER
+11
3
SERVICE MANUAL
AEP Model
UK Model
SPECIFICATIONS
Amplifier section
DIN power output
85 W + 85 W (4 ohms at 1 kHz)
55 W + 55 W (8 ohms at 1 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, TAPE1/DAT, TAPE2/MD: 7 Hz 100 kHz
dB
S/N (network A)
PHONO: 94 dB
TUNER, CD, AUX, TAPE1/DAT, TAPE2/MD: 105 dB
Output voltage/impedance
RECOUT: 150 mV, 1 kilohm
PHONES: 10 mW (at 8 ohms)
Speakers impedance
4 16 ohms, 8 16 ohms (SPEAKERS A + B)
Damping factor
100 (8 ohms, 1 kHz)
General
System
Power amplifier: Pure-complementary SEPP OCL power amplifier with
all stages directly coupled
Preamplifier: Low-noise, equalizer amplifier
Power requirements
230 V AC, 50/60 Hz
Power consumption
180 W
Dimensions (approx.) (w/h/d)
430
× 135 × 365 mm
incl. projecting parts and controls
Mass (approx.)
6.8 kg
Design and specifications are subject to change without notice.
2
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
! OR DOTTED
LINE WITH MARK
! 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.
TABLE OF CONTENTS
1.
GENERAL ................................................................... 3
2.
DISASSEMBLY .......................................................... 5
3.
ELECTRICAL ADJUSTMENTS ......................... 7
4.
DIAGRAMS ................................................................. 8
4-1.
Printed Wiring Boards ..................................................... 10
4-2.
Schematic Diagram ......................................................... 15
5.
EXPLODED VIEWS ................................................. 19
6.
ELECTRICAL PARTS LIST ................................ 22
3
SECTION 1
GENERAL
This section is extracted
from instruction manual.
4
5
Note: Follow the disassembly procedure in the numerical order given.
CASE ASS'Y
SECTION 2
DISASSEMBLY
FRONT PANEL SECTION
1 two screws
(case 3 TP2)
2 three screws
(case 3 TP2)
3 two screws
(case 3 TP2)
3 two screws
(case 3 TP2)
4 case ass'y
1 connector
(CN201)
2 connector
(CN701)
3 connector
(CN405)
4 connector
(CN809)
5 connector
(CN104)
6 five screws
(3
× 8)
7 two screws
(3
× 8)
8 screw
(BVTP2.6
× 8)
8 screw
(BVTP3
× 8)
9 front panel section