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US Model

STR-DB930/DB830

Canadian Model

STR-DB930

AEP Model

STR-DB930/DB830

E Model

Australian Model

STR-DB930

Chinese Model

STR-V929X

— Continued on next page —

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

a are trademarks

of Dolby Laboratories Licensing Corporation.

2002B1600-1

© 2002.02

POWER OUTPUT AND TOTAL HARMONIC DISTORTION : With 8

Ω

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

(STR-DB930) and 100 W (STR-DB830) per channel minimum
RMS power, with no more than 0.05 % total harmonic distortion
from 250 mW to rated output (USA model only).

POWER OUTPUT

Stereo mode
North American model

(8 

Ω 20 Hz - 20 kHz, THD 0.05 %)

STR-DB930 : 110 W + 110 W
STR-DB830 : 100 W + 100 W
(4 

Ω 20 Hz - 20 kHz, THD 0.05 %)

STR-DB930 : 100 W + 100 W
STR-DB830 : 90 W + 90 W

Other model

100 W + 100 W (8 

ΩDIN 1kHz)

100 W + 100 W (4 

ΩDIN 1kHz)

90 W + 90 W (8 

Ω 20Hz-20kHz,thd0.05%)

90 W + 90 W (4 

Ω 20Hz-20kHz,thd0.05%)

Surround mode
North American model

(8 

Ω 20 Hz - 20 kHz, THD 0.09 %)

STR-DB930 : Front

: 110 W + 110 W

Center

a)

: 110 W

Rear

a)

: 110 W + 110 W

STR-DB830 : Front

: 100 W + 100 W

Center

a)

: 100 W

Rear

a)

: 100 W + 100 W

(4 

Ω 20 Hz - 20 kHz, THD 0.09 %)

STR-DB930 : Front

: 100 W + 100 W

Center

a)

: 100 W

Rear

a)

: 100 W + 100 W

STR-DB830 : Front

: 90 W + 90 W

Center

a)

: 90 W

Rear

a)

: 90 W + 90 W

Other model

(8 

Ω 20 Hz - 20 kHz, THD 0.09 %)

Front

: 90 W + 90 W

Center

a)

: 90 W

Rear

a)

: 90 W + 90 W

(4 

Ω 20 Hz - 20 kHz, THD 0.05 %)

Front

: 90 W + 90 W

Center

a)

: 90 W

Rear

a)

: 90 W + 90 W

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

sound output.

Dynamic power output

STR-DB930 : 165 W + 165 W, 8 

Ω

250 W + 250 W, 4 

Ω

STR-DB830 : 155 W + 155 W, 8 

Ω

240 W + 240 W, 4 

Ω

Frequency response

PHONO : RIAA

equalization curve ±0.5 dB

CD, TAPE, MD/DAT, TAPE/MD, DVD/LD, TV/SAT, VIDEO
1,2, andVIDEO3:

10 Hz - 50 kHz + 0.5/-2
dB(with sound field, equalizer, and
bass boost bypassed)

Inputs(Analog)

PHONO :

Sensitivity : 2.5 mV
Impedance : 50 k

Ω

S/N

b)

: 86 dB(A, 2.5 mV

c)

)

Photo : STR-DB930 (BLACK model)

— 2 —

5.1CH INPUT, CD, DVD/LD, TAPE,

MD/DAT, TAPE/MD, TV/SAT,
VIDEO 1, 2, and VIDEO 3 :
Sensitivity : 150 mV
Impedance : 50 k

Ω

S/N

b)

: 96 dB(A, 150 mV

c)

)

b) INPUT SHORT
c) Weighted network, input level

Input(Digital)

DVD/LD (coaxial) :

Sensitivity : -
Impedance : 75 

Ω

S/N

: 100 dB(A, 20 kHz LPF)

DVD/LD, TV/SAT, MD/DAT (Optical)

Sensitivity : -
Impedance : -
S/N

: 100 dB(A, 20 kHz LPF)

Outputs

TAPE, MD/DAT, TAPE/MD, (REC OUT)
; VUDEO 1, 2 (AUDIO OUT) :

Voltage

: 150 mV

Impedance

: 10 k

Ω

FRONT L/R, CENTER, REAR L/R, SUB
WOOFER :

Voltage

: 2V

Impedance

: 1 k

Ω

PHONES :

Accepts low-and high-impedance headphones

BASS BOOST

+6 dB at 70 Hz

Sampling Frequency

48 kHz

EQ

BASS

: 100 Hz - 1.0 kHz(21 steps)

MID

: 500 Hz - 5.0 kHz(21 steps)

TREBLE

: 1.0 kHz - 10 kHz(21 steps)

Gain levels

: ±10 dB, 1 dB step

Tuning range

87.5 - 108.0 Hz

Antenna terminals

75 

Ω

, unbalanced

Sensitivity

Mono : 18.3 dBf, 2.2 µV/75 

Ω

Stereo : 38.3 dBf, 22.5 µV/75 

Ω

Usable sensitivity

11.2 dBf, 1 µV/75 

Ω

S/N

Mono : 76 dB
Stereo : 70 dB

Harmonic distortion at 1 kHz

Mono : 0.3 %
Stereo : 0.5 %

Separation

45 dB at 1 kHz

Frequency response

30 Hz - 15 kHz +0.5/-2 dB

Sencitivity

60 dB at 400 kHz

North American and E models

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

d)

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

d)

Other models

531 - 1,602 kHz

Antenna

Loop antenna

Usable sensitivity

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

S/N

54 dB(at 50 mV/m)

Hermonic distortion

0.5 %(50 mV/m, 400 kHz)

Selectivity

At 9 kHz

: 35 dB

At 10 kHz : 40 dB

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 10 kHz, repeat the procedure.

Inputs

Video

: 1 Vp-p 75 

Ω

S-video : Y : 1 Vp-p 75 

Ω

C : 0.286 Vp-p 75 

Ω

Outputs Video

: 1 Vp-p 75 

Ω

S-video : Y : 1 Vp-p 75 

Ω

C : 0.286 Vp-p 75 

Ω

System Tuner section :

PLL quarts-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

Other model

220 – 230V AC 50/60Hz

Power consumption

STR-DB930
Canadian

:400 VA

Other models  :290 W
STR-DB830
North American models  :  280 W

AC outlets

North American models  :  2 switched, total 120 W/1A
Other models  :  1 switched, max 100 W

Dimensions 430 

×

 405 

×

 160.5 mm

(17 

×

 16 

×

 6

3

/

8

 in.)

including projecting parts and controls

Mass(Approx.)

13 kg(28 lb 11oz)

Supplied accessories

• FM wire antenna (1)
• AM loop antenna (1)
• Audio/video/control S connecting cord (1)
• CONTROL A1 connecting cord (1)
• FM antenna adapter (1)
STR-DB930, V929X only

• Remote commander RM-LJ302 (remote) (1)
• LR6 (size-AA) alkaline batteries (3)

STR-DB830 only

• Remote commander RM-PP402 (remote) (1)
• LR6 (size-AA) batteries (2)

Design and specifications are subject to change without notice.

– BACK PANEL –

MODEL

DB930: US model

DB930: Canadian model

DB930: Malaysia, Singapore models

V929X

DB930:

Australian model

DB930: AEP model

DB830: US model

DB830:

AEP model

PARTS No.

4-217-716-0

π

4-217-716-1

π

4-217-716-2

π

4-217-716-3

π

4-217-716-4

π

4-217-716-5

π

4-217-716-6

π

4-217-716-7

π

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

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

4-1.

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

4-2.

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

4-3.

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

4-4.

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

4-5.

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

4-6.

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

4-7.

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

4-8.

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

4-9.

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

4-10. Schematic Diagram   Display Section ······························ 25
4-11. Printed Wiring Board   Speaker Switch Section ··············· 27
4-12. Schematic Diagram   Speaker Switch Section ················· 29
4-13. Printed Wiring Board   Rear AMP Section ······················· 31
4-14. Schematic Diagram   Rear AMP Section ························· 33
4-15. Printed Wiring Board   Power Section ····························· 35
4-16. Schematic Diagram   Power Section ································ 37
4-17. Printed Wiring Board   Video Section ······························ 39
4-18. Schematic Diagram   Video Section ································· 41
4-19. Printed Wiring Board   Main Section ······························· 43
4-20. Schematic Diagram   Main Section(1/2) ·························· 45
4-21. Schematic Diagram   Main Section(2/2) ·························· 47
4-22. IC Pin Function ································································ 49
4-23. IC Block Diagrams ··························································· 58

5-1.

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

5-2.

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

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

— 4 —

1

1

/

u

 switch

2

FUNCTION control
MODE button

3

INPUT MODE button

4

5.1CH INPUT button

5

MASTER VOLUME control

6

MUTING button

7

SLEEP button (EXCEPT AEP)
RDS PTY button (AEP model)

8

SPEAKERS selector
PHONES jack

9

DOOR OPEN button

0

DIMMER button

!¡

DISPLAY button

!™

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

!£

MULTI CHANNEL DECODING indicator

!¢

BASS BOOST button

!∞

EQUALIZER button

!§

TEST TONE button (EXCEPT AEP)
RDS EON button (AEP model)

!¶

PRESET TUNING +/- buttons
SHIFT button
FM/AM button

!•

TUNNIG +/- buttons
FM MODE button
MEMORY button

!ª

LEVEL button

@º

SUR button

@¡

EQ button

@™

Cursor buttons (</>)

@£

Jog dial

@¢

SET UP button

@∞

NAME button

@§

ENTER button