Sony STR-DE445, STR-DE545, STR-SE501 Service Manual
STR-DE445/DE545/SE501
SERVICE MANUAL
Photo: STR-DE445
Dolby Laboratories Licensing Corporation.
“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”
are trademarks of Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8 Ω loads, both channels driven, from
20 – 20,000 Hz; rated 100a) W per channel
minimum RMS power, with no more than
0.09% total harmonic distortion from 250
mW to rated output (US model only).
STR-DE445:
a) 80 W
Amplifier section
Rated Power Output at Stereo mode
US model:
(8 Ω 20 Hz – 20 kHz, THD
0.09 % )
EXCEPT US:
(8 Ω 1 kHz, THD 0.7 %)
STR-DE545/SE501:
100 W + 100 W
STR-DE445:
80 W + 80 W
Reference Power Output
(8Ω at 1 kHz, THD 0.7 %)
STR-DE545/SE501:
Front: 100 W + 100 W
Center: 100 W
Rear: 100 W + 100 W
STR-DE445:
Front: 80 W + 80 W
Center: 80 W
Rear: 80 W + 80 W
Frequency response
CD, MD/TAPE, DVD/LD, TV/
SAT, VIDEO, AUX:
10 Hz – 50 kHz +0.5/–2 dB
(with sound field, tone, and
bass boost bypassed)
Inputs (Analog) 5.1 CH INPUT, CD, DVD/LD,
b) Input short.
c) Weighted nework, input level.
Inputs (Digital) DVD/LD (coaxial):
*) STR-DE545 and STR-SE501 only.
Outputs MD/TAPE, (REC OUT); VIDEO
MD/TAPE, TV/SAT, VIDEO,
AUX:
Sensitivity: 250 mV
Impedance: 50 kΩ
b)
S/N
: 96 dB (A, 250 mVc))
Sensitivity: —
Impedance: 75 Ω
S/N: 100 dB (A, 20 kHz LPF)
DVD/LD, TV/SAT* (Optical):
Sensitivity: —
Impedance: —
S/N: 100 dB (A, 20 kHz LPF)
(AUDIO OUT):
Voltage: 250 mV,
Impedance: 10 kΩ
SUB WOOFER:
Voltage: 2 V
Impedance: 1 kΩ
PHONES:
Accepts low- and high impedance headphones
US Model
STR-DE445/DE545/SE501
Canadian Model
AEP Model
UK Model
STR-DE445/DE545
E Model
Australian Model
Chinese Model
PX Model
STR-DE545
BASS BOOST +6 dB at 70 Hz
TONE ±6 dB at 100 Hz and 10 kHz
Sampling Frequency
48 kHz
FM tuner section
Tuning range 87.5 – 108.0 MHz
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
Selectivity 60 dB at 400 kHz
— Continued on next page —
FM STEREO FM-AM RECEIVER
1
3-4. SCHEMATIC DIAGRAM — DIGITAL SECTION —
• See page 7 for Waveforms.
• See page 21 for IC Pin Functions.
STR-DE445/DE545/SE501
PIN
FUNCTION
PIN
FUNCTION
PIN
FUNCTION
11 11
3-6. SCHEMATIC DIAGRAM — MAIN (1/3) SECTION —
• See page 7 for Waveforms.
• See page 28 for IC Block Diagrams.
STR-DE445/DE545/SE501
13 13
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