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US Model
Canadian Model
STR-V333ES/V444ES/V555ES
AEP Model
UK Model
E Model
Australian Model
Chinese Model
PX Model
STR-V555ES
SERVICE MANUAL
FM STEREO FM-AM RECEIVER
SPECIFICATIONS
STR-V333ES/V444ES/
V555ES
-- Continued on next page --
Photo: STR-V444ES
AUDIO POWER
SPECIFICATIONS
POWER OUTPUT AND
TOTAL HARMONIC
DISTORTION:
With 8 ohm loads, both
channels driven, from 20 -
20,000 Hz; rated 120 watts
per channel minimum RMS
power, with no more than
0.05 % totalharmonic
distortionfrom 250
milliwatts to rated output
(US model only).
Amplifiersection
POWER OUTPUT
Models of other area code
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
120 W + 120 W
2)
110 W + 110 W
3)
(4 ohms 1 kHz, THD 0.7 %)
100 W + 100 W
2)
90 W + 90 W
3)
ReferencePower Output 2)
(8 ohms 1 kHz, THD 0.7 %)
FRONT
1):
120 W + 120 W
CENTER
1): 120 W
REAR
1):
120 W + 120 W
(4 ohms 1 kHz, THD 0.7 %)
FRONT
1):
100 W + 100 W
(8 ohms 20 Hz ­ 20 kHz, THD 0.05 %)
FRONT
1):
100 W + 100 W
CENTER
1): 100 W
REAR
1):
100 W + 100 W
(4 ohms 20 Hz ­ 20 kHz, THD 0.09 %)
FRONT
1):
90 W + 90 W
CENTER
1): 90 W
REAR
1):
90 W + 90 W
Models of area code UC
Rated Power Output at Stereo Mode
(8 ohms 20 Hz ­ 20 kHz, THD 0.05 %)
120 W + 120 W
(4 ohms 20 Hz ­ 20 kHz, THD 0.09 %)
100 W + 100 W
Reference Power Output
(8 ohms 20 Hz ­ 20 kHz, THD 0.05 %)
FRONT
1):
120 W + 120 W
(4 ohms 20 Hz ­ 20 kHz, THD 0.09 %)
FRONT :
1)
100 W + 100 W
CENTER
1): 100 W
REAR
1):
100 W + 100 W
STR-V555ES
2) Measured under the following conditions:
Area code
Power requirements
TW
110 V AC, 60 Hz
CN, CED
230 V AC, 50 Hz
3) Measured under the following conditions:
Area code
Power requirements
CN
220 V AC, 50 Hz
1) Depending on the sound field settings and
the source, there may be no sound output.
CENTER
1): 120 W
REAR
1):
120 W + 120 W
CENTER
1): 100 W
REAR
1):
100 W + 100 W
Ver 1.3 2003.06
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-929-297-14
2003F02-1
© 2003.06


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Frequency response
PHONO: RIAA
equalization curve
±0.5 dB
CD, TAPE, MD/DAT ,
DVD/LD, TV/SA T ,
VIDEO 1, 2, and
VIDEO 3:
10 Hz ­ 100 kHz
+0.5/­3 dB (with
sound field and
equalizer bypassed)
Inputs (Analog)
PHONO:
Sensitivity: 2.5 mV
Impedance:
50 kilohms
S/N
4): 86 dB
(A, 2.5 mV
5))
5.1CH INPUT , CD,
TAPE, MD/DA T,
DVD/LD, TV/SA T,
VIDEO 1, 2, and
VIDEO 3:
Sensitivity: 150 mV
Impedance:
50 kilohms
S/N
4): 96 dB
(A, 150 mV
5))
4) INPUT SHOR T
5) Weighted network, input level
Inputs (Digital)
DVD/LD IN, CD IN
(STR-V444ES,
STR-V555ES)
(Coaxial):
Sensitivity: ­
Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)
DVD/LD IN, TV/SAT
IN, CD IN, MD/
DAT IN (Optical):
Sensitivity: ­
Impedance: ­
S/N: 100 dB
(A, 20 kHz LPF)
Outputs (Analog)
TAPE, MD/DA T (REC
OUT); VIDEO 1, 2
(AUDIO OUT), 2ND
AV (STR-V444ES,
STR-V555ES),
2ND AUDIO
(STR-V333ES):
Voltage: 150 mV ,
Impedance:
1 kilohms
FRONT L/R, CENTER,
REAR L/R,
SUB WOOFER:
Voltage: 2 V
Impedance:
1 kilohms
PHONES:
Accepts low- and
high-impedance
headphones
Outputs (Digital)
MD/DAT (Optical)
Sampling Frequency
48 kHz
EQ
BASS:
99 Hz~1.0 kHz
(21 steps)
MID:
198 Hz~10 kHz
(37 steps)
TREBLE:
1.0 kHz~10 kHz
(23 steps)
Gain levels:
±10 dB, 1 dB step
FM tunersection
Tuningrange 87.5 - 108.0 MHz
Antenna terminals
75 ohms, unbalanced
Sensitivity
Mono: 18.3 dBf,
2.2
µV/75 ohms
Ster eo: 38.3 dBf,
22.5
µV/75 ohms
Usable sensitivity
11.2 dBf, 1
µV/75 ohms
S/N
Mono: 76 dB
Ster eo: 70 dB
Harmonic distortion at 1 kHz
Mono: 0.3%
Ster eo: 0.5%
Separation
45 dB at 1 kHz
Frequencyresponse
30 Hz ­ 15 kHz
+0.5/­2 dB
Selectivity
60 dB at 400 kHz
STR-V444ES
FRONT :
1)
100 W + 100 W
CENTER
1): 100 W
REAR
1):
100 W + 100 W
STR-V333ES
FRONT :
1)
90 W + 90 W
CENTER
1): 90 W
REAR
1):
90 W + 90 W
1) Depending on the sound field settings and
the source, there may be no sound output.
Reference Power Output
(8 ohms 20 Hz ­ 20 kHz, THD 0.05 %)
STR-V444ES
FRONT
1):
120 W + 120 W
CENTER
1): 120 W
REAR
1):
120 W + 120 W
STR-V333ES
FRONT
1):
110 W + 110 W
CENTER
1): 110 W
REAR
1):
110 W + 110 W
(4 ohms 20 Hz ­ 20 kHz, THD 0.09 %)
Rated Power Output at Stereo Mode
(8 ohms 20 Hz ­ 20 kHz, THD 0.05 %)
STR-V444ES
120 W + 120 W
STR-V333ES
110 W + 110 W
(4 ohms 20 Hz ­ 20 kHz, THD 0.09 %)
STR-V444ES
100 W + 100 W
STR-V333ES
90 W + 90 W
STR-V333ES/V444ES


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AM tuner section
Tuningrange
With 10-kHz tuning
scale:
530 ­ 1710 kHz
6)
With 9-kHz tuning
scale:
531 ­ 1710 kHz
6)
Antenna
Loop antenna
Usable sensitivity
50 dB/m (at 1,000 kHz
or 999 kHz)
S/N
54 dB (at 50 mV/m)
Harmonicdistortion
0.5 % (50 mV/m,
400 kHz)
Selectivity
At 9 kHz: 35 dB
At 10 kHz: 40 dB
6)
Y
(US, Canadian, E, Taiwan only)
ou can change the AM tuning scale to
10 kHz y 9 kHz. After tuning in any AM
station, turn off the receiver. Hold down the
TUNING + button and press the ?/1
button. All pr eset stations will be erased
when you change the tuning scale. To reset
the scale to 10 kHz (or 9 kHz), repeat the
procedure.
Video section
Inputs
Video: 1 Vp-p 75 ohms
S-video:
Y: 1 Vp-p 75 ohms
C: 0.286 Vp-p
75 ohms
Component video
(STR-V444ES,
Y: 1 Vp-p 75 ohms
B-Y: 1 Vp-p 75 ohms
R-Y: 1 Vp-p 75 ohms
Outputs
Video: 1 Vp-p 75 ohms
S-video:
Y: 1 Vp-p 75 ohms
C: 0.286 Vp-p
75 ohms
Component video
(STR-V444ES,
Y: 1 Vp-p 75 ohms
B-Y: 1 Vp-p 75 ohms
R-Y: 1 Vp-p 75 ohms
STR-V555ES
STR-V333ES, STR-V444ES
Models of ar ea code UC
With 10-kHz tuning
scale:
530 ­ 1710 kHz
6)
With 9-kHz tuning
scale:
531 ­ 1710 kHz
6)
Models of area code CN, CED, TW, E
With 9-kHz tuning
scale:
531 ­ 1602 kHz
STR-V555ES):
STR-V555ES):
General
System
Tuner section:
PLL quartz-locked
digital synthesizer
system
Preamplifier section:
Low-noise NF type
equalizer
Power amplifier
section:
Pure-complementary
SEPP
Power requirements
Power consumption
STR-V444ES
STR-V555ES
STR-V555ES
STR-V555ES
420 W
STR-V333ES
STR-V333ES, STR-V444ES
410 W
AC outlets
2 switched,
total 120 W/1A
Dimensions
430
× 175 × 405 mm
(17
× 7 × 16 in.)
including projecting
parts and controls
Mass (Approx.)
STR-V444ES, STR-V555ES
17.0 kg (37 lb 8 oz)
STR-V333ES
16.0 kg (35 lb 4 oz)
Models of area code UC
120 V AC, 60 Hz
STR-V333ES, STR-V444ES
120 V AC, 60 Hz
Models of area code
CED
230 V AC, 50/60 Hz
Models of area code CN
220 ­ 230 V AC,
50/60 Hz
Models of area code E
120/220/240 V AC,
50/60 Hz
Models of area code
TW
110 V AC, 60 Hz
Models of ar ea code UC
420 W
Models of ar ea code
CED, CN
370 W
Models of ar ea code
E, TW
420 W
Models of ar ea code UC
2 switched,
total 120 W/1A
Models of ar ea code
CED
1 switched,
total 100 W
Models of ar ea code
E, CN, TW
2 switched,
total 100 W


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MODEL IDENTIFICATION
­ BACK PANEL ­
MODEL
PARTS No.
V555ES: US, CND, E, PX, EA model
4-228-819-0s
V444ES model
4-228-819-1s
V333ES model
4-228-819-2s
V555ES: AEP, UK, CIS, AUS, MY, SP, EE
,
HK model
V555ES: CH model
4-228-819-5s
V555ES: TW model
4-228-819-6s
PART NO.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS AP-
PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
· Abbreviation
CND : Canadian model
AUS : Australian model
CH
: Chinese model
EE
: East European model
EA
: Saudi Arabia model
SP
: Singapore model
TW
: Taiwan model
MY : Malaysia model
HK
: Hong Kong model
STR-V333ES/444ES
Supplied accessories
· FM wire antenna (1)
· AM loop antenna (1)
· Audio/video/control S connecting cor d (1)
· Control S connecting cord (1)
· Remote commander RM-LJ304 (r emote) (1)
· LR6 (size-AA) alkaline batteries (3)
STR-V444ES only
· Remote commander RM-US104 (r emote) (1)
· R6 (size-AA) batteries (2)
STR-V555ES
· FM wir e antenna (1)
· AM loop antenna (1)
· Remote commander RM-TP504 (remote) (1)
· LR6 (size-AA) alkaline batteries (4)
· Coin shaped lithium battery (CR-2032) (1)
Models of area code UC only
· Audio/video/control S connecting cord (1)
· Control S connecting cord (1)
· Remote commander RM-US104 (remote) (1)
· R6 (size-AA) batteries (2)
Area Code
For details on the area code of the component you
are using, see Fig. 1.
UC: US, Canadian model
CED: AEP, UK, East European, CIS, Australian,
malaysia, Singapole, Hong Kong model
E: E, Saudi Arabia, PX model
TW: Taiwan model
CN: Chinese model
Design and specifications are subject
to change without notice.
4-XXX-XXX-XX AA
AC OUTLET
+
­
+
­
FRONT
REAR
CENTER
REAR
CENTER
BA
L
R
L
R
L
R
L
R
L
R
L
R
SPEAKERS
IMPEDANCE SELECTOR
4
8
IMPEDANCE USE 4-16
About area codes
The area code of the receiver you purchased is shown on
the lower portion of the rear panel (see the illustration
below).
Any differences in operation, according to the area code, are
clearly indicated in the text, for example, "Models of area
code AA only".
Area code
AREA CODE
UC
: US, Canadian model
CED : AEP, UK, East European, CIS, Australian,
Hong Kong model
E
: E, Saudi Arabia, Malaysia, Singapore, PX model
TW
: Taiwan model
CN
: Chinese model
Fig. 1
4-228-819-3s


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After correcting the original service problem, perform the fol-
lowing safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, "metallized" knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers). Leak-
age current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The "limit" indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
SAFETY CHECK-OUT
(US model only)
To Exposed Metal
Parts on Set
0.15
µF
1.5 k
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
Notes on chip component replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
· CHANGE OF BOARDS
Printed wiring boards have been changed.
Printed wiring boards and schematic diagrams of new type, and changed parts list are described in this service manual
NEW TYPE IDENTIFICATION
FORMER TYPE
NEW TYPE
Model
Destination
Serial number
Serial number
STR-V333ES
US,CND
8,804,451 to 8,806,754
8,806,755 and later
STR-V444ES
US,CND
8,806,228 to 8,808,351
8,808,352 and later
STR-V555ES
US,CND
8,804,862 to 8,806,241
8,806,242 and later
STR-V555ES
AEP,UK,AUS (MY,SP,HK,CIS,EE)
55,502,861 to 5,504,150
5,504,151 and later
STR-V555ES
E2 (PX,EA)
4,400,001 to 4,400,010
4,400,011 and later
STR-V555ES
E3 (PX,EA)
3,300,001 to 3,300,209
3,300,210 and later
STR-V555ES
TW,CH
­­­­­­­­­­­­­­­­­­
From first production
Ver 1.2 2002.01
· Abbreviation
CND : Canadian model
AUS : Australian model
CH
: Chinese model
EE
: East European model
EA
: Saudi Arabia model
SP
: Singapore model
TW
: Taiwan model
MY
: Malaysia model
HK
: Hong Kong model