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Sony STR-DB780 Service Manual

Sony STR-DB780
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2
STR-DA1ES/DB780
Outputs
MD/TAPE (REC
OUT), VIDEO 1, 2
(AUDIO OUT)
FRONT L/R,
CENTER,
SURROUND L/R,
SUB WOOFER
(Models of area code
U, CA only)
SUB WOOFER
(Models of other area
codes)
EQ
BASS: 99 Hz~1.0 kHz
(21 steps)
TREBLE: 1.0 kHz~10 kHz
(23 steps)
Gain levels: ±10 dB, 0.5 dB step
FM tuner section
Tuning range 87.5 - 108.0 MHz
Antenna terminals 75 ohms, unbalanced
Sensitivity
Mono: 18.3 dBf, 2.2 µV/75 ohms
Stereo:
38.3 dBf, 22.5 µV/75 ohms
Usable 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 U, CA
With 10-kHz tuning scale: 530 – 1,710 kHz
6)
With 9-kHz tuning scale: 531 – 1,710 kHz
6)
Models of area code CN, SP, CEL, CEK, TW,
KR
With 9-kHz tuning scale: 531 – 1,602 kHz
Antenna Loop antenna
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
At 10 kHz: 40 dB
6) You can change the AM tuning scale to 9 kHz or
10 kHz. After tuning in any AM station, turn off
the receiver. Hold down TUNING + and press
?/1. All preset stations will be erased when you
change the tuning scale. To reset the scale to
10 kHz (or 9 kHz), repeat the procedure.
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
(Except for models of area code CEL, CEK):
Y: 1 Vp-p, 75 ohms
B-Y: 0.7 Vp-p, 75 ohms
R-Y: 0.7 Vp-p, 75 ohms
Voltage: 150 mV
Impedance: 10 kilohms
Voltage: 2 V
Impedance: 1 kilohms
Voltage: 2 V
Impedance: 1 kilohms
General
Power requirements
Area code Power requirements
U, CA 120 V AC, 60 Hz
CEL, CEK 230 V AC, 50/60 Hz
CN, SP, KR 220 – 230 V AC, 50/60 Hz
TW 110 V AC, 60 Hz
Power consumption
Area code Power consumption
U 280 W
CA 330 VA
CEL, CEK 290 W
CN, SP, KR 290 W
TW 290 W (MAX 500W)
Power consumption (during standby mode)
0.5 W
AC outlets
Area code AC outlets
U, CA 1 switched, 120 W/1A MAX
SP, TW 1 switched, 100 W MAX
Dimensions 430 × 161 × 400 mm
including projecting parts
and controls
Mass (Approx.) 12.5 kg
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Models of area code U, CA;
Remote commander RM-PP506L (1)
R6 (size-AA) batteries (2)
Models of other area codes;
Remote commander RM-U305C (1)
R6 (size-AA) batteries (2)
Design and specifications are subject to change
without notice.

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Sony STR-DB780 Specifications

General IconGeneral
TypeStereo Receiver
Total Harmonic Distortion0.09 %
Digital inputs2 Optical, 1 Coaxial
Weight10.5 kg
Video inputscomposite
Video outputs1 composite, 1 S-Video
Output Power100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio96 dB (Line in)
Input Sensitivity150 mV (Line in)

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