Sony STR-K740P User Manual

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

Sony STR-K740P Specifications

General

Impedance	8 ohms
Total Harmonic Distortion	0.09%
Power Output	100 Watts per channel (8 ohms, 20 Hz - 20 kHz, THD 0.09%)
Digital Inputs	1 x Coaxial, 1 x Optical
Surround Sound	DTS
Tuning Range	FM
Speaker Load Impedance	8 ohms
Video Connections	Composite video
Surround Output	100W per channel (8 ohms, 20Hz-20kHz, 0.09% THD)

Summary

Specifications

Power Output and Harmonic Distortion

Details on power output ratings and total harmonic distortion.

Amplifier Section Power Output

Power output ratings for the amplifier section by area code.

FM Tuner Section Specifications

Sensitivity, S/N, and distortion for FM reception.

AM Tuner Section Specifications

Tuning range, sensitivity, and distortion for AM reception.

General Information and Test Modes

Button Descriptions

Explanation of front panel buttons and their functions.

Test Mode Procedures

Instructions for accessing and using various test modes.

Auto Betical Mode

Procedure for automatic broadcast scanning and setup in Europe models.

Diagrams and Schematics

Circuit Board Location

Diagram showing the physical placement of all circuit boards within the unit.

Block Diagrams

Block diagrams illustrating key sections of the receiver's circuitry.

Printed Wiring Boards

Printed wiring board layouts for DIGITAL, MAIN, DISPLAY, VIDEO, and POWER sections.

Schematic Diagrams

Schematic diagrams for DIGITAL, MAIN, DISPLAY, VIDEO, and POWER sections.

IC Block Diagrams and Pin Functions

Block diagrams and pin descriptions for integrated circuits.

Exploded Views

Front Panel Section

Exploded view of the front panel and its components.

Chassis Sections

Exploded views of the chassis, showing major internal assemblies and parts.

Electrical Parts List

Miscellaneous Parts

Revision History

Record of revisions made to the service manual.