STR-K740P 반도체 회로 부품 판매점
FM STEREO FM-AM RECEIVER SERVICE MANUAL
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 Sony |
STR-K740P/K840P
SERVICE MANUAL
Ver 1.0 2002. 02
US Model
Canadian Model
AEP Model
UK Model
E Model
• STR-K740P/K840P are the tuner and the
amplifier section in HT-DDW740/DDW840.
Photo : STR-K840P (SILVER model)
Dolby Laboratories Licensing Corporation.
“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”
are trademarks of Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 8 ohm loads, both channels driven, from
40 – 20,000 Hz; rated 100 watts (STR-K840P
only)/80 watts (STR-K740P only) per channel
minimum RMS power, with no more than
0.09 % total harmonic distortion from 250
milliwatts to rated output (Models of area code
U only).
Amplifier section
POWER OUTPUT
Models of area code U, CA
Rated Power Output at Stereo Mode
(8 ohms 40 Hz – 20 kHz, THD 0.09 %)
STR-K840P:
100 W + 100 W
STR-K740P:
80 W + 80 W
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
FRONT1):100 W/ch
CENTER1): 100 W
SURR1): 100 W/ch
STR-K740P:
FRONT1): 80 W/ch
CENTER1): 80 W
SURR1): 80 W/ch
Models of area code CEL,CEK
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
100 W + 100 W2)
STR-K740P:
80 W + 80 W2)
Models of area code AR, SP
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
90 W + 90 W
Reference Power Output2)
(8 ohms 1 kHz, THD 10 %)
STR-K840P:
FRONT1): 120 W/ch
CENTER1): 120 W
SURR1): 120 W/ch
Models of other area code
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
100 W + 100 W2)
STR-K740P:
80 W + 80 W2)
Reference Power Output2)
(8 ohms 1 kHz, THD 10 %)
STR-K840P:
FRONT1): 120 W/ch
CENTER1): 120 W
SURR1): 120 W/ch
STR-K740P:
FRONT1): 100 W/ch
CENTER1): 100 W
SURR1): 100 W/ch
1) Depending on the sound field settings and the
source, there may be no sound output.
2) Measured under the following conditions:
Area code
Power requirements
E 240 V AC, 50 Hz
SP, CEL, CEK, AR 230 V AC, 50 Hz
MX 120 VAC, 60 Hz
Reference Power Output2)
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
FRONT1): 100 W/ch
CENTER1): 100 W
SURR1): 100 W/ch
STR-K740P:
FRONT1): 80 W/ch
CENTER1): 80 W
SURR1): 80 W/ch
— Continued on next page —
FM STEREO FM-AM RECEIVER
9-873-544-01
2002B1600-1
© 2002.02
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
STR-K740P/K840P
Frequency response
MULTI CH IN3), CD,
MD/TAPE, DVD/LD,
VIDEO 1, 2
10 Hz – 50 kHz
+0.5/–2 dB (with sound
field, and tone bypassed)
Inputs (Analog)
MULTI CH IN3), CD,
MD/TAPE, DVD/LD,
VIDEO 1, 2
Sensitivity: 250 mV
Impedance: 50 kilohms
S/N4): 96 dB
(A, 250 mV5))
3) HT-DDW840 only
4) INPUT SHORT (with sound field and tone
bypassed).
5) Weighted network, input level.
Inputs (Digital)
DVD/LD (Coaxial)
VIDEO 2 (Optical)
Sensitivity: –
Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)
Sensitivity: –
Impedance: –
S/N: 100 dB
(A, 20 kHz LPF)
Outputs
MD/TAPE (OUT),
VIDEO 1
(AUDIO OUT)
SUB WOOFER
Voltage: 250 mV
Impedance: 10 kilohms
Voltage: 2 V
Impedance: 1 kilohms
Tone
Gain levels:
±6 dB, 1 dB step
FM tuner section
Tuning range
87.5 - 108.0 MHz
Antenna terminals 75 ohms, unbalanced
Intermediate Frequency
10.7 MHz
Sensitivity
Mono:
Stereo:
18.3 dBf, 2.2 µV/75 ohms
38.3 dBf, 22.5 µV/75 ohms
Usable sensitivity
S/N
Mono:
Stereo:
11.2 dBf, 1 µV/75 ohms
76 dB
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 – 1710 kHz6)
With 9-kHz tuning scale: 531 – 1710 kHz6)
Models of area code E, AR, MX
With 10-kHz tuning scale: 530 – 1610 kHz6)
With 9-kHz tuning scale: 531 – 1602 kHz6)
Models of area code MY, SP, CEL, CEK
With 9-kHz tuning scale: 531 – 1602 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:
At 10 kHz:
35 dB
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 PRESET TUNING + and
press . 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
Outputs
Video:
1 Vp-p, 75 ohms
General
Power requirements
Area code
Power requirements
U, CA, MX
120 V AC, 60 Hz
CEL, CEK
230 V AC, 50/60 Hz
MY, SP, AR
220 – 230 V AC, 50/60 Hz
E 120/220/240 V AC, 50/60 Hz
Power consumption
Area code
Power consumption
U, MX
STR-K840P: 210 W
STR-K740P: 180 W
CA STR-K840P: 300 VA
STR-K740P: 260 VA
CEL, CEK, MY, SP, STR-K840P: 180 W
E, AR
STR-K740P: 155 W
Power consumption (during standby mode)
0.5 W
Dimensions
430 145 298 mm
(16 7/8 5 6/8 11 6/8
inches) including
projecting parts and
controls
Mass (Approx.)
7.0 kg (15 lb 7 oz)
Design and specifications are subject to change
without notice.
• Abbreviation
U : US model.
CA : Canadian model.
CEL : AEP model.
CEK : UK model.
SP : Singapore model. (Malaysia model included.)
MX : Mexican model.
MY : Malaysia model.
AR : Argentine model.
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제조업체: Sony
( sony )
STR-K740P receiver
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