STR-DE845/DE945

SERVICE MANUAL

US Model Canadian Model

STR-DE845/DE945

E Model

Australian Model

Chinese Model

PX Model

STR-DE845

Photo: STR-DE945

Manufactured under license from Dolby labora- tories. “Dolby”, “AC-3”, “Pro Logic” and the double- D symbol ; are trademarks of Dolby Laborato- ries.

Manufactured under license from Digital Theater Systems, Inc. US Pat. No. 5,451,942 and other worldwide patents issued and pending. “DTS” an d “DTS Digital Surround” are trademarks of Digi- tal Theater Systems, Inc.

SPECIFICATIONS

AUDIO POWER

SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 8 ohm loads, both channels driven, from 20 - 20,000 Hz; rated 110 watts (STR-DE945) and 100 watts

(STR-DE845) per channel minimum RMS power, with no more than 0.09 % total harmonic distortion from 250 milliwatts to rated output (USA model only).

Amplifier section

POWER OUTPUT

Models of area code U, CA

Rated Power Output at Stereo Mode

(8 ohms 20 Hz – 20 kHz, THD 0.09 %) STR-DE945: 110 W + 110 W STR-DE845: 100 W + 100 W

Reference Power Output

(8 ohms 1 kHz, THD 0.7 %) STR-DE945: FRONT:1)

110 W + 110 W

CENTER1): 110 W REAR1):

110 W + 110 W

STR-DE845: FRONT1):

100 W + 100 W

CENTER1): 100 W REAR1):

100 W + 100 W

Models of other area code STR-DE845:

Rated Power Output at Stereo Mode

(8 ohms 1 kHz, THD 0.7 %) 100 W + 100 W2) 90 W + 90 W3)

Reference Power Output

(8 ohms 1 kHz, THD 0.7 %) FRONT1):

100 W + 100 W

CENTER1): 100 W REAR1):

100 W + 100 W

(8 ohms 20 Hz – 20 kHz, THD 0.09 %)

FRONT1):

95 W + 95 W CENTER1): 95 W REAR1):

95 W + 95 W (8 ohms 1 kHz, THD 10 %)

FRONT1):

135 W + 135 W

CENTER1): 135 W REAR1):

135 W + 135 W

1)Depending on the sound field settings and the source, there may be no sound output.

2)Measured under the following conditions:

Area code Power requirements

AU, E

240 V AC, 50 Hz

CN, SP

230 V AC, 50 Hz

3) Measured under the following conditions:

Area code Power requirements

CN

220 V AC, 50 Hz

Frequency response

PHONO: RIAA equalization curve

±0.5 dB

CD, TAPE, MD/DAT, MD/TAPE, DVD/ LD, TV/SAT, VIDEO 1, 2, and VIDEO 3:

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

Inputs (Analog)

Outputs

TAPE, MD/DAT, MD/

PHONO:

 

TAPE; VIDEO 1, 2

Sensitivity: 2.5 mV

 

(AUDIO OUT):

Impedance: 50

 

Voltage: 150 mV,

kilohms

 

Impedance:

S/N4): 86 dB

 

1 kilohms

(A, 2.5 mV5))

 

SUB WOOFER:

5.1CH INPUT, CD,

 

Voltage: 2 V

TAPE, MD/DAT,

 

Impedance:

MD/TAPE, DVD/

 

1 kilohms

LD, TV/SAT, VIDEO

 

PHONES:

1, 2, and VIDEO 3:

 

Accepts low- and

Sensitivity: 150 mV

 

high-impedance

Impedance:

 

headphones

50 kilohms

 

 

S/N4): 96 dB

BASS BOOST +6 dB at 70 Hz

(A, 150 mV5))

 

 

 

Sampling Frequency

4) INPUT SHORT

 

48 kHz

5) Weighted network, input level

 

 

Inputs (Digital)

EQ

BASS:

 

100 Hz~1.0 kHz

DVD/LD IN(Coaxial):

 

 

(21 steps)

Sensitivity: –

 

 

MID:

Impedance: 75 ohms

 

 

500 Hz~5.0 kHz

S/N: 100 dB

 

 

(21 steps)

(A, 20 kHz LPF)

 

 

TREBLE:

DVD/LD IN, TV/SAT

 

 

1.0 kHz~10 kHz

IN, MD/DAT IN

 

 

(21 steps)

(Optical):

 

 

Gain levels:

Sensitivity: –

 

 

± 10 dB, 1 dB step

Impedance: –

S/N: 100 dB (A, 20 kHz LPF)

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FM STEREO/FM-AM RECEIVER

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Sony service manual STR-DE845/DE945
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STR-DE845 specifications

The Sony STR-DE845 is a vintage yet impressive 5.1-channel surround sound receiver that has captivated audio enthusiasts since its release. As part of Sony's esteemed line of home audio equipment, this model exemplifies a combination of classic design, robust build quality, and advanced features that enhance the listening experience.

One of the standout features of the STR-DE845 is its power output, capable of delivering 100 watts per channel at 8 ohms. This ample power ensures that your audio experience remains vibrant and dynamic, whether you’re enjoying music or watching movies. The receiver supports a range of speaker configurations, making it versatile enough to accommodate various home theater setups.

Another key characteristic of the STR-DE845 is its compatibility with Dolby Pro Logic and DTS surround sound formats. These technologies bring a cinematic experience into the home, allowing sound to envelop listeners from all directions. The receiver's ability to decode these formats enhances the clarity and immersion of soundtracks, providing an impressive auditory experience.

The STR-DE845 boasts a wide array of connectivity options, including multiple analog and digital inputs, which allow you to connect various audio sources such as CD players, VCRs, and gaming consoles. The inclusion of an AM/FM tuner also opens up the possibility for listening to local radio stations. For convenience, the receiver includes a remote control, enabling users to adjust settings and change inputs from a distance.

In terms of audio processing, the STR-DE845 features Advanced Digital Sound Field Processing (DSFP), which allows users to customize their listening experience based on room acoustics and personal preferences. This technology helps replicate the ambiance of live music venues and movie theaters, delivering an optimized sound experience regardless of the room's characteristics.

The design of the STR-DE845 is another highlight. With a sleek black finish and intuitive layout, this receiver fits seamlessly into any home entertainment setup. The front panel features a clear display, and the user-friendly interface makes navigating settings and configurations straightforward.

Moreover, the receiver's durability is noteworthy. Built with quality components, the STR-DE845 is designed to withstand the test of time, making it a dependable option for audiophiles and casual listeners alike.

In conclusion, the Sony STR-DE845 is a feature-packed surround sound receiver that combines quality, functionality, and a user-friendly experience. With its powerful output, advanced surround sound technologies, and versatility in connectivity, it remains a respectable choice for those looking to elevate their audio and home theater systems.
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