STR-DB1070, STR-DB870 - Sony Audio Service Manual (repair manual). Page 2

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2
STR-DB870/DB1070
• Abbreviation
CA : Canadian model
CEL : AEP and UK models
CN : Chinese model
KR : Korean model
SP
: Malaysia and Singapore models
TW : Taiwan model
U
: US model
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 E
With 10-kHz tuning scale: 530 – 1.610 kHz
6)
With 9-kHz tuning scale: 531 – 1.602 kHz
6)
Models of area code CN, SP, CEL, 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 kHz)
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
Video:
1 Vp-p, 75 ohms
S-video:
Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms
Outputs
Video:
1 Vp-p, 75 ohms
S-video:
Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms
General
Power requirements
Area code
Power requirements
U, CA
120 V AC, 60 Hz
CEL
230 V AC, 50/60 Hz
CN, SP
220 – 230 V AC, 50/60 Hz
E
120/220/240 V AC, 50/60 Hz
TW
110 V AC, 60 Hz
KR
220 V – 230 V AC, 60 Hz
Power consumption
Area code
Power consumption
U
STR-DB1070: 300 W
CA
STR-DB1070: 420 VA
STR-DB870: 390 VA
CEL
STR-DB1070: 240 W
STR-DB870: 230 W
CN, SP, E, TW, KR STR-DB1070: 240 W
AC outlets
Area code
AC outlets
U, CA
2 switched, 120 W/1A MAX
SP, CEL, KR
1 switched, 100 W MAX
CN, E, TW
2 switched, 100 W MAX
Dimensions
430 
×
 161 
×
 401 mm
including projecting parts
and controls
Mass (Approx.)
16.0 kg
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
• Models of area code U, CA
Audio/video/control S connecting cord (1)
Control S connecting cord (1)
• STR-DB1070 only
• Models of area code U, CA
Remote commander RM-PP505L (1)
R6 (size-AA) batteries (2)
• Models of other area codes
Remote commander RM-LP205 (1)
R6 (size-AA) batteries (3)
• STR-DB870 only
• Models of area code CA
Remote commander RM-PP505 (1)
R6 (size-AA) batteries (2)
• Models of area code CEL
Remote commander RM-U305 (1)
R6 (size-AA) batteries (2)
Design and specifications are subject to change
without notice.
Inputs (Digital)
DVD/LD (Coaxial)
DVD/LD, TV/SAT,
MD/DAT, MD/TAPE
(Optical)
Outputs
TAPE, MD/DAT, MD/
TAPE (REC OUT),
VIDEO 1, 2 (AUDIO
OUT)
FRONT L/R,
CENTER,
SURROUND L/R,
SURROUND BACK,
SUB WOOFER
EQ
BASS:
99 Hz~1.0 kHz
(21 steps)
MID:
198 Hz~10 kHz
(37 steps)
TREBLE:
1.0 kHz~10 kHz
(23 steps)
Gain levels:
±
10 dB, 1 dB step
FM tuner section
Tuning range
87.5 - 108.0 MHz
Antenna terminals
75 ohms, unbalanced
Sensitivity
Mono:
18.3 dBf, 2.2 
µ
V/75 ohms
Stereo:
38.3 dBf, 22.5 
µ
V/75 ohms
Usable sensitivity
11.2 dBf, 1 
µ
V/75 ohms
S/N
Mono:
76 dB
Stereo:
70 dB
Harmonic distortion at 1 kHz
Mono:
0.3%
Stereo:
0.5%
Sensitivity: –
Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)
Sensitivity: –
Impedance: –
S/N: 100 dB
(A, 20 kHz LPF)
Voltage: 150 mV
Impedance: 1 kilohms
Voltage: 2 V
Impedance: 1 kilohms
Inputs (Analog)
PHONO
MULTI CH IN (1, 2),
CD/SACD, TAPE,
MD/DAT, MD/TAPE,
DVD/LD, TV/SAT,
VIDEO 1, 2, 3
4) INPUT SHORT.
5) Weighted network, input level.
Sensitivity: 2.5 mV
Impedance: 50 kilohms
S/N
4)
: 86 dB (A, 2.5 mV
5)
)
Sensitivity: 150 mV
Impedance: 50 kilohms
S/N
4)
: 96 dB
(A, 150 mV
5)
)
Display
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