Sony STR-DB798 Service Manual

SERVICE MANUAL

Ver. 1.0 2005.07
This receiver incorporates Dolby* Digital and Pro
Logic Surround and the DTS** Digital Surround
System.
* Manufactured under license from Dolby
Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are
trademarks of Dolby Laboratories.
** "DTS" and "DTS Digital Surround" are registered
trademarks of Digital Theater Systems, Inc.
Sony Corporation
9-879-775-01
Audio Group
2005G05-1
Published by Sony Engineering Corporation
© 2005.07
STR-DB798

SPECIFICATIONS

Amplifier section
Power Output
Models of area code CEL, CEK, TW
Rated Power Output at Stereo Mode
(8 ohms 20 Hz – 20 kHz, THD 0.09%)
1)
100 W + 100 W
(8 ohms 1 kHz, THD 0.7%)
1)
110 W + 110 W
(8 ohms 1 kHz, THD 10%)
1)
135 W + 135 W
1)
Reference Power Output
(8 ohms 20 Hz – 20 kHz, THD 0.09%)
2)
FRONT : 100 W/ch
2)
CENTER : 100 W
2)
SURR : 100 W/ch
2)
SURR BACK : 100 W/ch
(8 ohms 1 kHz, THD 0.7%)
2)
FRONT : 110 W/ch
2)
CENTER : 110 W
2)
SURR : 110 W/ch
2)
SURR BACK : 110 W/ch
(8 ohms 1 kHz, THD 10%)
2)
FRONT : 135 W/ch
2)
CENTER : 135 W
2)
SURR : 135 W/ch
2)
SURR BACK : 135 W/ch
1) Measured under the following conditions:
Area code Power requirements
AEP, UK 230 V AC, 50 Hz
Taiwan 110 V AC, 60 Hz
2) Depending on the sound field settings and the
source, there may be no sound output.
Frequency response
PHONO RIAA equalization curve
±0.5 dB
MULTI CH IN, SA-CD/ 10 Hz – 100 kHz
CD, MD/TAPE, DVD, +0.5/–2 dB (when
TV/SAT, VIDEO 1, 2, 3 ANALOG DIRECT is
selected)
FM STEREO FM/AM RECEIVER
AEP Model
UK Model
Taiwan Model
Inputs (Analog)
PHONO Sensitivity: 2.5 mV
Impedance: 50 k ohms
3)
S/N : 86 dB
4)
(A, 2.5 mV )
MULTI CH IN, SA-CD/ Sensitivity: 150 mV
CD, MD/TAPE, DVD, Impedance: 50 k ohms
3)
TV/SAT, VIDEO 1, 2, 3 S/N : 96 dB
4)
(A, 150 mV )
3) INPUT SHORT.
4) Weighted network, input level.
Inputs (Digital)
DVD, SA-CD/CD Sensitivity: –
(Coaxial) Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)
DVD, TV/SAT, Sensitivity: –
MD/TAPE, VIDEO 3 Impedance: –
(Optical) S/N: 100 dB
(A, 20 kHz LPF)
Outputs (Analog)
MD/TAPE (OUT), Voltage: 150 mV
VIDEO 1, 2 Impedance: 2.2 k ohms
(AUDIO OUT)
SUB WOOFER Voltage: 2 V
Impedance: 1 k ohm
Outputs (Digital)
MD/TAPE (Optical) Sensitivity: –
Equalizer
±10 dB, 1 dB step
Gain levels
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