STR-DE835, STR-DE935, STR-SE591, STR-V828 - Sony Audio Service Manual (repair manual)

US Model

STR-DE835/DE935/SE591

Canadian Model

STR-DE835/DE935

E Model

Australian Model

PX Model

STR-DE835

Chinese Model

STR-V828

Manufactured under license from Dolby Laboratories
Licensing Corporation.
“DOLBY” and the double-D symbol 

a

 are trademarks

of Dolby Laboratories Licensing Corporation.

2006D16-1

© 2006.04

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 8 

Ω

 loads, both channels driven, from 20 – 20,000 Hz; rated 110

W(STR-DE935) and 100 W(STR-DE835/SE591) per channel minimum
RMS power, with no more than 0.09% toral harmonic distortion from 250
mW to rated output (USA model only).

POWER OUTPUT

Stereo mode

(8

Ω

 20Hz – 20kHz, THD 0.09%)

USA, Canadian models

STR-DE935 : 110W + 110W
STR-DE835/SE591 : 100W + 100W

Other models

95W + 95W
(8

Ω

 20Hz-20kHz, THD 0.09%)

135W + 135W
(8

Ω

 at 1kHz, THD 10%)

Surround mode

USA, Canadian models

(8

Ω

 at 1kHz, THD 0.8%)

STR-DE935

Front: 110W + 110W
Center

a)

: 110W

Rear

a

): 110W + 110W

STR-DE835/SE591

Front: 100W + 100W
Center

a)

: 100W

Rear

a

): 100W + 100W

Other models

Rated power

(8

Ω

 at 1kHz, THD 0.7%)

Front: 100W + 100W
Center

a)

: 100W

Rear

a

): 100W + 100W

Reference

(8

Ω

 20Hz-20Hz, THD 0.9%)

Front: 95W + 95W
Center

a)

: 95W

Rear

a

): 95W + 95W

(8

Ω

 at 1kHz, THD 10%)

Front: 135W + 135W
Center

a)

: 135W

Rear

a

): 135W + 135W

a) Depending on the sound field settings and the source, there may be no

sound output.

Dynamic power output
STR-DE935 :

165W + 165W, 8

Ω

250W + 250W, 4

Ω

STR-DE835/SE591 :

155W + 155W, 8

Ω

240W + 240W, 4

Ω

Frequency response

PHONO: RIAA
equalization curve 

±

0.5 dB

CD, TAPE, MD/DAT, TAPE/MD, DVD/LD,
TV/SAT, VIDEO 1, 2, and VIDEO 3(STR-
DE935 only):
10Hz – 50kHz + 0.5/–2dB (with sound field,
equalizer, and bass boost bypassed)

Photo : STR-DE935

— Continued on next page —

— 2 —

Inputs (Analog)

PHONO:
Sensitivity: 2.5mV
Impedance: 50k

Ω

S/N

b)

: 86dB (A, 2.5mV

c)

)

5.1CH INPUT, CD,DVD/LD,TAPE,MD/
DAT,TAPE/MD,TV/SAT,VIDEO1,2 and
VIDEO3(STR-DE935 only):
Sensitivity: 150mV
Impedance: 50k

Ω

S/N

b)

: 96dB (A, 150mV

c)

)

b) Input short
c) Weighted network, input level

Inputs (Digital)

DVD/LD (coaxial):
Sensitivity: –
Impedance: 75

Ω

S/N: 100dB (A, 20kHz LPF)
DVD/LD, TV/SAT, MD/TAPE (Optical):
Sensitivity: –
Impedance: –
S/N: 100dB (A, 20kHz LPF)

Outputs

TAPE,MD/DAT,TAPE/MD, (REC OUT);
VIDEO1,2 (AUDIO OUT):
Voltage: 150mV,
Impedance: 10k

Ω

SUB WOOFER:
Voltage:2V
Impedance: 1k

Ω

PHONES:
Accepts low-and high-impedance headphones

BASS BOOST

+6dB at 70Hz

Sampling Frequency

48kHz

EQ

BASS: 100Hz – 1.0kHz (21steps)
MID: 500Hz – 5.0kHz (21steps)
TREBLE:1.0kHz – 10kHz (21steps)
Gain levels: ±10dB, 1dB step

Tuning range

87.5 – 108.0MHz

Antenna terminals

75

Ω

, unbalanced

Sensitivity

Mono: 18.3dBf, 2.2µV/75

Ω

Stereo: 38.3dBf, 22.5µV/75

Ω

Usable sensitivity

11.2dBf, 1µV/75

Ω

S/N

Mono: 76dB
Stereo: 70dB

Harmonic destortion at 1kHz

Mono: 0.3%
Stereo: 0.5%

Separetion

45dB at 1kHz

Frequency response

30Hz – 15kHz + 0.5/–2dB

Selectivity

60dB at 400kHz

Tuning range

USA, Canadian, E, PX models

With 10-kHz tuning scale:
530 – 1,710kHz

d)

With 9-kHz tuning scale:
531 – 1,710kHz

d)

Other models

531 – 1,620kHz

Antenna

Loop antenna

Usable sensitivity

50dB/m (at 1,000kHz or 999kHz)

S/N

54dB (at 50mV/m)

Harmonic destortion

0.5% (50mV/m, 400kHz)

Selectivity

At 9kHz: 35dB
At 10kHz: 40dB

d) You can change the AM tuning scale to 9kHz. After tuning in any AM

station, turn off the receiver. Hold down the TUNING + button and
press the 1/u button. All preset stations will be erased when you
change the tuning scale. To reset the scale to 10kHz, repeat the
procedure.

Inputs

VIDEO : 1Vp-p 75

Ω

S-video : Y : 1Vp-p 75

Ω

   

 C : 0.286Vp-p 75

Ω

Outputs

VIDEO : 1Vp-p 75

Ω

S-video : Y : 1Vp-p 75

Ω

   

 C : 0.286Vp-p 75

Ω

System

Tuner section:
PLL quartz-locked digital synthesizer system
Preamplifier section:
Low-noise NF type equalizer
Power amplifier section:
Pure-complementary SEPP

Power requirements USA, Canadian models

120V AC, 60Hz

Australian model

240V AC, 50Hz

Chinese model

220 – 230V AC 50/60Hz

E, PX models

120 or 220 or 240V AC 50/60Hz
(adjustable with the voltage selector)

Power consumption

STR-DE935

USA: 290W
Canada: 345VA

STR-DE835/SE591

USA: 280W
Canada: 335VA
Australian: 230W
E, PX: 300W
Chinese: 200W

AC outlets

USA, Canadian models

2switched, total 120W/1A

Other models

1switched, max 100W

Dimensions

430 

×

 376 

×

 157.5mm

(17 

×

 14

7

/

8

 

×

 6

1

/

4

 in.)

including projecting parts and controls

Mass (Approx.)

10.2kg (22 lbs. 8 oz.)

Supplied accessories

FM wire antenna (1)
AM loop antenna (1)
Audio/video/control S connecting cord (1)
Control S connecting cord (1)
FM antenna adapter (1)
STR-DE935 only

Remote commander RM-LJ302 (remote) (1)
R6 (size-AA) alkaline batteries (3)

Other models

Remote commander RM-PP402 (remote) (1)
R6 (size-AA) batteries (2)

Design and specifications are subject to change without notice.

– BACK PANEL –

MODEL

DE835:

US model

DE835:

Singapore, Malaysia models

V828

DE835:

Australian model

DE835:

E, PX models

DE935

SE591

DE835:

Canadian model

PARTS No.

4-217-900-3

π

4-217-900-4

π

4-217-900-5

π

4-217-900-6

π

4-217-900-7

π

4-217-900-8

π

4-217-900-9

π

4-218-334-11

PART NO.

— 3 —

!

!

!

(US model only)

    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.

    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).
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)

Earth Ground

AC
voltmeter
(0.75V)

1.5k

Ω

0.15

µ

F

Fig. A.  Using an AC voltmeter to check AC leakage.

To Exposed Metal 
Parts on Set

·········································································· 4

······································································ 6

3-1.

Block Diagram   Main Section ··········································· 7

3-2.

Block Diagram   Power Section ········································· 9

3-3.

Circuit Board Location ····················································· 11

3-4.

Schematic Diagram   Digital Section(1/3) ······················· 13

3-5.

Schematic Diagram   Digital Section(2/3) ······················· 15

3-6.

Schematic Diagram   Digital Section(3/3) ······················· 17

3-7.

Printed Wiring Board   Digital Section(1/2) ····················· 19

3-8.

Printed Wiring Board   Digital Section(2/2) ····················· 21

3-9.

Printed Wiring Board   Display Section ··························· 23

3-10. Schematic Diagram   Display Section ······························ 25
3-11. Printed Wiring Board   Surround Section ························· 27
3-12. Schematic Diagram   Surround Section ··························· 29
3-13. Printed Wiring Board   Rear AMP Section ······················· 31
3-14. Schematic Diagram   Rear AMP Section ························· 33
3-15. Printed Wiring Board   Power Section ····························· 35
3-16. Schematic Diagram   Power Section ································ 37
3-17. Printed Wiring Board   Video Section ······························ 39
3-18. Schematic Diagram   Video Section ································· 41
3-19. Printed Wiring Board   Main Section ······························· 43
3-20. Schematic Diagram   Main Section(1/2) ·························· 45
3-21. Schematic Diagram   Main Section(2/2) ·························· 47
3-22. IC Pin Function ································································ 49
3-23. IC Block Diagrams ··························································· 59

4-1.

Front Panel Section ·························································· 62

4-2.

Chassis Section ································································· 64

······································· 66

— 4 —

1

1

/

u

 switch

2

Function buttons

3

INPUT MODE button

4

5.1CH INPUT button

5

MASTER VOLUME control

6

MUTING button

7

SPEAKERS selector
PHONES jack

8

2ND AUDIO button (DE935 MODEL)

9

DISPLAY button

0

DIMMER button

!¡

A.F.D button/indicator
MODE button/indicator
2CH button/indicator

!™

MULTI CHANNEL DECODING indicator

!£

BASS BOOST button

!¢

EQUALIZER button

!∞

DIRECT button
SHIFT button
Numeric buttons (1 to 0)
AM button
FM button
FM MODE button
MEMORY button

!§

TUNNIG +/- buttons
PRESET +/- buttons

!¶

LEVEL button

!•

SUR button

!ª

EQ button

@º

Cursor buttons(</>)

@¡

Jog dial

@™

SET UP button

@£

NAME button

@¢

ENTER button