Sony STR-DB798 Service Manual

2
STR-DB798
FM tuner section
Tuning range 87.5 - 108.0 MHz
Antenna FM wire antenna
Antenna terminals 75 ohms, unbalanced
Intermediate frequency 10.7 MHz
Sensitivity
Mono: 18.3 dBf, 2.2 µV/75 ohms
Stereo: 38.3 dBf, 22.5 µV/75 ohms
Useable sensitivity 11.2 dBf, 1 µV/75 ohms
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
AM tuner section
Tuning range
Models of area code AEP, UK, Taiwan
With 9-kHz tuning scale: 531 – 1,602 kHz
Antenna Loop antenna
Intermediate frequency 450 kHz
Usable sensitivity 50 dB/m (at 1,000 kHz or
999 kHz)
S/N 54 dB (at 50 mV/m)
Harmonic distortion 0.5% (50 mV/m, 400 Hz)
Selectivity
At 9 kHz: 35 dB
Video section
Inputs/Outputs
Video: 1 Vp-p, 75 ohms
S-video: Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms
COMPONENT VIDEO: Y: 1 Vp-p, 75 ohms
P
B /C B /B-Y: 0.7 Vp-p,
75 ohms
P
R
/C
R
/R-Y: 0.7 Vp-p,
75 ohms
80 MHz HD Pass Through
General
Power requirements
Power consumption
Power consumption (during standby mode)
0.3 W
Dimensions (w/h/d) (Approx.)
397 160 .5 430 mm
including projecting parts
and controls
Mass (Approx.) 13.5 kg
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Remote commander RM-AAP002 (1)
R6 (size-AA) batteries (2)
AC power cord (1)
Design and specifications are subject to change
without notice.
Area code Power requirements
AEP, UK
AEP, UK
230 V AC, 50/60 Hz
Taiwan
Taiwan
110 V AC, 50/60 Hz
Area code Power consumption
290 W
520 W
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

Sony STR-DB798 Specifications

General

Impedance	8 Ω
Supported radio bands	FM
Radio Data System (RDS)	Yes
Channels quantity	7 channels
I/O ports	Output(Component x 1, Optical Digital x 1, Composite x 1, S-Video x 1), Input(Component x 2, Optical Digital x 4, S-Video x 4, Coaxial Digital x 2, Composite x 4)