Sony STR-K740P Service Manual

SERVICE MANUAL
Ver 1.0 2002. 02
• STR-K740P/K840P are the tuner and the
amplifier section in HT-DDW740/DDW840.
Dolby Laboratories Licensing Corporation.
"DOLBY" the double-D symbol ; "AC-3" and "PRO LOGIC"
are trademarks of Dolby Laboratories Licensing Corporation.
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:
STR-K740P:
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
STR-K740P:
Models of area code CEL,CEK
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
STR-K740P:
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
STR-K840P:
STR-K740P:
Sony Corporation
9-873-544-01
2002B1600-1
Home Audio Company
© 2002.02 Published by Sony Engineering Corporation
STR-K740P/K840P
Photo : STR-K840P (SILVER model)
SPECIFICATIONS
100 W + 100 W
80 W + 80 W
1)
FRONT :100 W/ch
CENTER 1) : 100 W
SURR 1) : 100 W/ch
1)
FRONT : 80 W/ch
1)
CENTER : 80 W
1)
SURR : 80 W/ch
100 W + 100 W 2)
80 W + 80 W 2)
2)
FRONT 1) : 100 W/ch
CENTER 1) : 100 W
1)
SURR : 100 W/ch
1)
FRONT : 80 W/ch
1)
CENTER : 80 W
SURR 1) : 80 W/ch
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 Output 2)
(8 ohms 1 kHz, THD 10 %)
STR-K840P: FRONT 1) : 120 W/ch
CENTER 1)
1)
SURR : 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 W
STR-K740P: 80 W + 80 W
2)
Reference Power Output
(8 ohms 1 kHz, THD 10 %)
1)
STR-K840P: FRONT : 120 W/ch
CENTER 1)
SURR 1) : 120 W/ch
1)
STR-K740P: FRONT : 100 W/ch
1)
CENTER
SURR 1) : 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
FM STEREO FM-AM RECEIVER
US Model
Canadian Model
AEP Model
UK Model
E Model
: 120 W
2)
2)
: 120 W
: 100 W
— Continued on next page —