STR-DE435/DE535/SE491/V424/V525
US Model
STR-DE435/DE535/SE491
Canadian Model
STR-DE435/DE535
AEP Model
STR-DE435
E Model
STR-DE435/DE535
Australian Model
STR-DE435/DE535
Chinese Model
STR-V424/V525
SERVICE MANUAL
FM STEREO FM-AM RECEIVER
MICROFILM
-- Continued on next page --
SPECIFICATIONS
Dolby Laboratories Licensing Corporation.
"DOLBY" the double-D symbol
a "AC-3" and "PRO LOGIC"
are trademarks of Dolby Laboratories Licensing Corporation.
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8-ohm load, both channels driven, from 20a)
20,000 Hz rated 100 watts per channel minimum
RMS power, with no more than 0.09%b) total
harmonic distortion from 250 milliwatts to rated
output.
STR-SE491:
a) 40Hz
b) 0.5%
Amplifier section
Stereo mode
STR-DE535/DE435:
(8
at 20Hz 20kH
less than 0.09% total
harmonic distortion)
100W + 100W
STR-SE491:
(8
at 40Hz 20kHz less
than 0.5% total harmonic
distortion)
100W + 100W
Surround mode and
STR-DE535/435:
5.1CH/DVD mode
(8
at 1kHz, THD 0.8%)
Front: 100W/ch
Center*: (Pro Logic Mode)
100W
Rear*: 100W/ch
STR-SE491:
(8
at 1kHz, THD 0.5%)
Front: 100W/ch
Center*: 100W
Rear*: 100W/ch
Frequency response
PHONO: RIAA
equalization curve
±0.5dB
(except STR-DE435)
TV/SAT, CD, MD/
TAPE, VIDEO, 5.1CH/
DVD
10Hz 50kHz ± 1dB
Inputs
Sensitivity
Impedance
S/N
PHONO
(except STR-
4mV
50
86dB
DE435)
kilohms
CD,
5.1CH/
DVD,
MD/TAPE,
250mV
50
96dB
TV/SAT,
kilohms
VIDEO
Outputs
MD/TAPE REC OUT:
Voltage: 250mV,
Impedance: 10kilohms
VIDEO AUDIO OUT:
Voltage: 250mV,
Impedance: 10kilohms
WOOFER:
Voltage: 2V
Impedance: 1kilohms
PHONES: Accepts low
and high impedance
headphones
Muting
Full mute
BASS BOOST
+8dB at 70Hz
TONE
±8dB at 100Hz and
10kHz
Tuner section
FM Stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 108.0MHz
Antenna terminals
75
, unbalanced
Intermediate frequency
10.7MHz
Sensitivity
Mono: 18.3dBf,
4.5µV
Stereo: 38.3dBf,
45µV
Usable sensitivity
11.2dBf, 2µV (IHF)
S/N
Mono: 76dB
Stereo: 70dB
Harmonic
Mono: 0.3%
distortion at 1kHz
Stereo: 0.5%
Separation
45dB at 1kHz
Frequency response
30Hz 15kHz
dB
Selectivity
60dB at 400kHz
+0.5
2
Photo: STR-DE535
-- 2 --
AM tuner section
Tuning range
10kHz interval**
530 1,710kHz
9kHz interval
531 1,710kHz
Antenna
Loop antenna
Intermediate frequency
450kHz
Usable sensitivity
50dB/m (at 1,000kHz)
S/N
54dB (at 50mV/m)
Harmonic distortion
0.5% (50mV/m, 400Hz)
Selectivity
At 10kHz: 40dB
At 9kHz: 35dB
** You can change the AM tuning interval between 9kHz and 10kHz. After tuning in
any AM station, turn off the receiver.
Hold down the PRESET TUNING+ buttoh and press the
1/u (power) button. All
preset stations will be erased when you change the interval. To reset the interval,
repeat the procedure.
VIDEO section (except STR-SE491)
Inputs
VIDEO, TV/SAT, 5.1CH/DVD:
1Vp-p 75
Outputs
VIDEO, MONITOR:
1Vp-p 75
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
120V AC, 60Hz
Power consumption
220W
AC outlets
STR-DE535/SE491:
2 switched,
total 120W/1A Max
STR-DE435:
1 switched,
total 120W/1A Max
Dimensions
430
× 157 × 366 mm
(17
× 61/8 × 145/8 inches)
Mass (Aporox.)
STR-DE535: 11.1kg (24 lb 6 oz)
STR-DE435: 11.0kg (24 lb 3 oz)
STR-DE491: 11.2kg (24 lb 9 oz)
Supplid accessories
FM wire antenna (1)
AM loop antenna (1)
Remote commander
(remote) (1)
LR6 (size - AA) batteries (3)
(STR-DE535 only)
R6 (size - AA) batteries (2)
(STR-DE435/SE491 only)
* Depending on the sound field setting and the source, there may be no sound
output.
Design and specifications are subject to change without notice.
Parts No.
MODEL IDENTIFICATION
-- BACK PANEL --
MODEL
PARTS No.
DE535: US model
4-216-927-0
DE535: Canadian model
4-216-927-1
DE535: Australian model
4-216-927-2
DE535: E model
4-216-927-3
DE535: Malaysia, Singapore model
4-216-927-4
V525: Chinese model
4-216-927-5
DE435: US model
4-217-181-0
DE435: Canadian model
4-217-181-1
DE435: Australian model
4-217-181-2
DE435: Malaysia, Singapore model
4-217-181-3
V424: Chinese model
4-217-181-4
DE435: AEP model
4-217-181-5
DE435: East European, CIS model
4-217-181-6
SE491: US model
4-217-181-7
-- 3 --
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
PUBLISHED BY SONY.
After correcting the original service problem, perform the
following 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 microamperes).
Leakage 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 passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
SAFETY CHECK-OUT
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE
! 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.
TABLE OF CONTENTS
1. GENETAL ··········································································· 4
2. TEST MODE ······································································ 6
3. DIAGRAMS
3-1.
Circuit Boards Location ····················································· 7
3-2.
Block Diagrams ·································································· 9
· Main Section ···································································· 9
· Power Section ································································ 11
3-3.
Printed Wiring Board -- Input Section -- ······················· 13
3-4.
Schematic Diagram -- Input Section -- ·························· 15
3-5.
Printed Wiring Board -- Surround Section -- ················· 17
3-6.
Schematic Diagram -- Surround Section -- ··················· 19
3-7.
Printed Wiring Board -- Display Section -- ··················· 21
3-8.
Schematic Diagram -- Display Section -- ······················ 23
3-9.
Printed Wiring Board -- Key Section -- ························· 25
3-10. Schematic Diagram -- Key Section -- ··························· 27
3-11. Printed Wiring Board -- Rear Amp Section -- ··············· 29
3-12. Schematic Diagram -- Rear Amp Section -- ·················· 31
3-13. Printed Wiring Board -- Power Amp Section -- ············· 33
3-14. Schematic Diagram --Power Amp Section -- ················ 35
3-15. IC Pin Function Description ············································· 37
3-16. IC Block Diagrams ··························································· 39
4. EXPLODEO VIEWS
4-1.
Front Panel Section ·························································· 40
4-2.
Chassis Section ································································· 42
5. ELECTRICAL PARTS LIST ······································· 44
-- 4 --
SECTION 1
GENETAL
1
1/u (POWER) button
2
TUNING +, button
3
DIMMER button
4
DISPLAY button
5
PRESET/PTY SELECT +, buttons (DE435),
PRESET TUNING +, buttons (DE535)
6
RDS PTY button (DE435 only)
7
RDS EON button (DE435), AM button (DE535)
8
MD/TAPE button
9
5.1CH/DVD button
!º
SUR button
!¡
SOUND FIELD ON/OFF, MODE +, buttons
!TM
SET UP button
!£
MASTER VOLUME control
!¢
TONE button
!
BASS BOOST button
!§
MUTING button
!¶
BALANCE control
!·
NAME button
!ª
ENTER button
@º
MENU <, >, +, buttons
@¡
BASS/TREBLE button
@TM
PHONO button (DE535 only)
@£
TV/LD button (DE435), TV/SAT button (DE535)
@¢
TUNER button
@
VIDEO button
@§
CD button
@¶
FM/AM button (DE435), FM button (DE535)
@·
FM MODE button
@ª
MEMORY button
#º
DIRECT button
#¡
Number buttons
#TM
SHIFT button
#£
PHONES jack
#¢
SPEAKERS A. B switch
Front Panel
1
23 4 56 7
8 9 !º
!¡
!TM
!£
!¢
!
!¶
!·
!ª
@º
@¡
@TM
@£
@¢
@
@¶
@ª
#º
#¡
#TM
#£
#¢
@§
@·
!§
-- 5 --
1
ANTENNA (FM/AM)
2
5.1CH/DVD
3
MONITOR
4
WOOFER
5
SPEAKER (REAR)
6
SPEAKER (CENTER)
7
AC power cord
8
AC OUTLET
9
SPEAKER (FRONT)
!º
IMPEDANCE SELECTOR (DE535 only)
!¡
S-LINK (DE535 only)
!TM
VIDEO
!£
TV/LD (DE435), TV/SAT (DE535)
!¢
MD/TAPE
!
CD
!§
PHONO (DE535 only)
!¶
y SIGNAL GND (DE535 only)
Rear Panel
1
2
3
4
56
8
9
!º
!¡
!TM
!£
!¢
!
!§
!¶
7