Sony STR-DE845 Service Manual

SERVICE MANUAL
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.
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:
STR-DE845: FRONT
Models of other area code
STR-DE845:
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
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STR-DE845/DE945
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
(8 ohms 20 Hz – 20 kHz, THD 0.09 %)
(8 ohms 1 kHz, THD 10 %)
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
CN, SP
3) Measured under the following conditions:
Area code Power requirements
CN
Frequency response
1)
110 W + 110 W
1)
CENTER : 110 W
1)
REAR :
110 W + 110 W
1)
:
100 W + 100 W
1)
CENTER : 100 W
1)
REAR :
100 W + 100 W
2)
100 W + 100 W
3)
90 W + 90 W
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Photo: STR-DE945
SPECIFICATIONS
Inputs (Analog)
PHONO:
1)
FRONT :
100 W + 100 W
1)
CENTER : 100 W
1)
REAR :
100 W + 100 W
5.1CH INPUT, CD,
1)
FRONT :
95 W + 95 W
1)
CENTER : 95 W
1)
REAR :
95 W + 95 W
1)
FRONT :
135 W + 135 W
1)
CENTER : 135 W
1)
REAR :
135 W + 135 W
4) INPUT SHORT
5) Weighted network, input level
Inputs (Digital)
DVD/LD IN(Coaxial):
240 V AC, 50 Hz
230 V AC, 50 Hz
DVD/LD IN, TV/SAT
220 V AC, 50 Hz
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
FM STEREO/FM-AM RECEIVER
+0.5/–2 dB (with
sound field,
equalizer, and bass
boost bypassed)
Canadian Model
STR-DE845/DE945
Australian Model
Chinese Model
Outputs TAPE, MD/DAT, MD/
TAPE; VIDEO 1, 2
Sensitivity: 2.5 mV (AUDIO OUT):
Impedance: 50 Voltage: 150 mV,
kilohms Impedance:
4)
S/N : 86 dB 1 kilohms
5)
(A, 2.5 mV ) SUB WOOFER:
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
4)
S/N : 96 dB BASS BOOST +6 dB at 70 Hz
5)
(A, 150 mV )
Sampling Frequency
48 kHz
EQ BASS:
100 Hz~1.0 kHz
(21 steps)
Sensitivity: –
MID:
Impedance: 75 ohms
500 Hz~5.0 kHz
S/N: 100 dB
(21 steps)
(A, 20 kHz LPF)
TREBLE:
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)
– Continued on next page –
US Model
E Model
PX Model
STR-DE845