Sony ta f 444 esx service manual

Page 1

TA-F444ESX.

E Model

TA-F700ES:

US Model
Canadian Model
AEP Model
UK Model

Photo: TA-F444ESX

SPECIFICATIONS
AUDIO POWER SPECIFICATIONS (us Model) will??? 3-00ng m M , m 42-,

POWER OUTPUT AND TOTAL HARMONIC isms 7 iOHMUOkHz
DISTORTION: Dynamic 4 ohms 3 ca

headroom 8 ohms , 2 :13
With 4 ohm loads, both channels driven, Tlfa'lflmm 4 ohms
from 20 a 20,000 Hz; rated 140 watts per mmmon a. m w'a" cum. 30-00%
channel minimum RMS power, with no sonms, lawn/a
more than 0,008% total harmonic distortion 3* 0 walmulw' :
from 250 milliwatts to rated output. 37 10.002%

at 10 wall output L

With 8 ohm loads, both channels driven,
from 20 , 20,000 Hz; rated 105 watts per
channel minimum FlMS power, with no
more than 0.004% total harmonic distortion
from 250 milliwatts to rated output.

OTHER SPECIFICATIONS
Item Condition Data
? Continuous 4 ohms I45 w + I45 w
HMS power 20 Hz A 20 kHz (Asp, GAEPI
output loom THD 0.008% UK, 5,
channels amen cow/E (GVAEP)
Sim15e°5'y> 6 ohms 125 w 7 125 w
l 20 Hz , 20 kHz IAEP, GAEP, on, E]
l THD 0.006% 20 w-~ 20 w -lY

000370 (G-AEP) IUS, Canadian,

North European
contriesl

l 8 ohms

110 W + IIO W
, 20 H2720 kHz (AERGAEP, UK, E)
» THD 0mm 05 W , 105 w
(US, Canadian,

North European
canines)

I omen/n lG-AEP)

MICROFILMI

- Continued on page 2 -

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED BY SHAOING AND MARK
A ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL T0 SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONV.

ATTENTION AU COMFOSANT AYANT RAPPORT
A LA SECURITE!

LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET
UNE MARouE A sun LEs DIAGRAMMES SCHE-
MATIOUES ET LA LISTE DES PIECES SONTCRITIOUES
poun LA SECURITE DE FUNCTIONNEMENT, NE REM~
PLACER CES COMPOSANTS QUE PAR DES PIECES
SONY DONT LES NuMERos SONT DONNEs DANS CE
MANUEL ou DANs LEs SUPPLEMENTS PUBLIES PAR
SONY.

INTEGRATED STEREU AMPLIFIER
SON I

I!!!

Page 2

TA-F444ESX/F7OOES |

rlnrerrrloculailon 4 ohms o 008% Power consumption
IIM) distortion at rated ocean/a GAAEFI 1 US M969 330 Watts
» 60 Hz 7 kHz = output __ Canadian Model: 760VA
6 ohms GAAEP Model: 390 watts
at rated (GAE?) UK Model: 350 watts
output I AEP Model: 270 watts
302:: l 0004M1 E Model: 390 watts
output 10005: lG~AEFl AC outlets
l Damping lactor la ohms. l w: loo 1 U5 Canadian Mme
125 lesec 2 switched, total 100 watts max,
Slew rate ~ 250 VluSeC 2 unswitched, total 100 watts max.
(ineldei AEP, G-AEP, UK Model: 1 switched, 100 watts maxi
Residual noise network A l less lhan 115 v E Model: 1 switched, 100 watts max
Frequency 1 PHONO MM l FllAA equalization 1 unswitched, 100 watts max,
1 response l 2 <15 Dimensions Approx 430 x160 x 436 mm (wlhld)
TUNER. 2 Hz , 200 kHz (17x63/.x 17 Winches)
l TAPE 2 .3355- including projecting parts and controls
l . a; 1120:; Weight Approx, 18.3 kg (40 lbs 6 oz) net
l lnout Sensrtiwty ; PHONOlMc 3 ohms at? MM 33 ohms
i l l lG-AEFl
lot? mvlioo ohms
t n l n
l l l 3 FEATURES
(GVAEP)
. 10.17 mV. 1 konm r Newly developed technologies assure excellent
n l n l .
l 1 I l gsé'CJKj; l perlormance and tone quality
1 1 MM 25 mv, so Kohms
W Pure sound
l TAPE i. 2 3 l 150 mv, so kohms A head chassis. named Gibraltar" which provides high
l ADAPTOR N l rigidity and periodic damping characteristics, is employed to
21-31333 [W : :Hfilzdmc 9 W reduce distortion caused by vibrations.
r1 kHz, imp This reduces air Vibrations caused by floor and speakers and
1 0003 M l 5 V also reduces vibrations caused by the power transformer
s/N lnetworki PHONO MC 2 7e oa .58 dB in and power transistors.
MM 30 dB ,37 dB (Al
1:25? (2393» AUX 34 ca . Spontaneous twin drive power circuit
l 78 IHF ADAPTdfi' IN 105 dB 1A) Condensers having large capacity are used for the voltage
fompm voltage REC our 1, 2. 3 r amplification drive stage of class A and power output stage
t impedance ADAPTOR OUT i 50 mv 1 mm" of class 8. Thus a stable output and high quality sound are
: HEADPHONES l 25 miIIlWans obtained. resulting in exclusion of power interferences
l 2:039:32; and The class A stage realizes a stable operation free from
i hlgli impedance ' interference of the power stage even when an instantaneous
, WWW or strong output is received.
Tone controls BASS. at to) H2 :35 as (turnover
if; Sigma, Simple and direct tone control
"q, 400 Hz, The tone controls (200845! of only passive elements to
THEBLE. at to kHz :gae (turnover minimlze the deterioration of tone quality at the tone control
"13 kHz) circuit.
Eva-Sagagme' Tone control elements can be passed by depressing the tone
SUBSONIC filter 6 dBIocIave SWIICh
5 - attenuation below
i 15 Hz Source direct switch
A source direct switch is employed to reproduce high fidelity
General sound.
System Preamplifier section: Low-noise FET high gain Any SOUlCE can be reproduced WithOUt passing thUQh the
NFB type equalizer amplifier, passive type Circuits of tone controls subsonic filter. mode switch and
direct tone control balance control.

Power amplifier section: purecomplernentary
SEPP power amplifier

. Super legato linear system
Power requirements

US, Canadian Model: 120V AC, 60H: The power amplifier drives low impedance speakers and

AEp' G-AEP Moder; 220V Ac, 50/60, assures powerful reproduction Without low crossover

UK Model: 240V Ac, son distortion and switching distortion over the wide range.

E Model: 120, 220, or 240v AC adiustable, (Low impedance instantaneous service output 350 W + 350
50/60Hz W. 1 ohm loaded)

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