Sony STR-DE245 Service Manual

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STR-DE245/DE345
SERVICE MANUAL
Ver 1.0 2000. 02
Manufactured under license from Dolby Laboratories Licensing
Corporation.
"DOLBY" the double-D symbol ; "AC-3" and "Pro Logic" are
trademarks of Dolby Laboratories Licensing Corporation.
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8-ohm load, both channels driven, from 20 –
20,000 Hz rated 100 watts per channel minimum
RMS power, with no more than 0.09% total
harmonic distortion from 250 milliwatts to rated
output.
Amplifier section
(8 Ω at 20 Hz – 20 kHz,
Rated Power Output at
Stereo Mode THD 0.09 %)
100W + 100W
Reference Power Output (8Ω at 1 kHz, THD 0.7%)
Front: 100 W + 100 W
Center: 100 W
Rear: 100 W + 100 W
Frequency response TV/SAT, CD, MD/TAPE,
VIDEO, 5.1CH/DVD
10 – 50 kHz
Inputs
Sensitivity Impedance
CD,
5.1CH/
DVD,
50
MD/TAPE, 150 mV
kilohms
TV/SAT,
VIDEO
Photo: STR-DE345
SPECIFICATIONS
Outputs
Muting
BASS BOOST
TONE
Tuner section
FM Stereo, FM/AM superheterodyne tuner
+0.5
dB
–2.0
FM tuner section
Tuning range
S/N
Antenna terminals
Intermediate frequency
Sensitivity
85 dB
Usable sensitivity
S/N
Harmonic
distortion at 1 kHz
Separation
Frequency response
Selectivity
Australian Model
Canadian Model
MD/TAPE REC OUT: AM tuner section
Voltage: 150 mV,
Tuning range
Impedance: 10 kilohms
VIDEO AUDIO OUT:
Voltage: 150 mV,
Impedance: 10 kilohms
Antenna
SUB WOOFER:
Intermediate frequency
Voltage: 2 V
Usable sensitivity
Impedance: 1 kilohms
PHONES: Accepts low
S/N
and high impedance
Harmonic distortion
headphones
Selectivity
Full mute
+6 dB at 70 Hz
±6 dB at 100 Hz and
* You can change the AM tuning interval between 9
10 kHz
kHz and 10 kHz. Turn off the receiver and press
the ?/1 (power) for more than 4 seconds until
"INITIAL" appears.
1) After turning in any AM station, turn off the
receiver.
2) Hold down PRESET TUNING + button and
press the ?/1 (power) button .
87.5 – 108.0 MHz
75 Ω, unbalanced
"9 k STEP" appears.
10.7 MHz
Mono: 18.3 dBf, 4.5 µV To change to 10 k Step, repeat step 1 and 2
Stereo: 38.3 dBf, 45 µV
until "10 k STEP" appears. Note that all preset
11.2 dBf, 2 µV (IHF)
stations, index names and sound field are
Mono: 76 dB
cleared after you make the procedure above.
Stereo: 70 dB
Mono: 0.3 %
Stereo: 0.5 %
45 dB at 1 kHz
+0.5
30 Hz –15 kHz dB
–2.0
60 dB at 400 kHz
FM STEREO FM-AM RECEIVER
AEP Model
UK Model
E Model
STR-DE245/DE345
US Model
Chinese Model
PX Model
STR-DE345
10 kHz interval*
530 – 1,710 kHz
9 kHz interval
531 – 1,710 kHz
Loop antenna
450 kHz
50 dB/m (at 1,000 kHz
or 999 kHz)
54 dB (at 50 mV/m)
0.5 % (50 mV/m, 400
Hz)
At 10 kHz: 40 dB
At 9 kHz: 35 dB
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