Sony STR-DE245/DE345 User Manual

STR-DE245/DE345
AEP Model
UK Model
E Model
Australian Model
STR-DE245/DE345
US Model
Canadian Model
Chinese Model
PX Model
STR-DE345
SERVICE MANUAL
FM STEREO FM-AM RECEIVER
SPECIFICATIONS
Manufactured under license from Dolby Laboratories Licensing
Corporation.
“DOLBY” the double-D symbol ; “AC-3” and “Pro Logic” are
trademarks of Dolby Laboratories Licensing Corporation.
Photo: STR-DE345
— Continued on next page —
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8-ohm load, both channels driven, from 20 –
20,000 Hz rated 100 watts per channel minimum
RMS power, with no more than 0.09% total
harmonic distortion from 250 milliwatts to rated
output.
Amplifier section
Rated Power Output at (8 Ω at 20 Hz – 20 kHz,
Stereo Mode THD 0.09 %)
100W + 100W
Reference Power Output (8Ω at 1 kHz, THD 0.7%)
Front: 100 W + 100 W
Center: 100 W
Rear: 100 W + 100 W
Frequency response TV/SAT, CD, MD/TAPE,
VIDEO, 5.1CH/DVD
10 – 50 kHz dB
Inputs
Sensitivity Impedance S/N
CD,
5.1CH/
DVD,
MD/TAPE, 150 mV
50
85 dB
TV/SAT,
kilohms
VIDEO
Outputs MD/TAPE REC OUT:
Voltage: 150 mV,
Impedance: 10 kilohms
VIDEO AUDIO OUT:
Voltage: 150 mV,
Impedance: 10 kilohms
SUB WOOFER:
Voltage: 2 V
Impedance: 1 kilohms
PHONES: Accepts low
and high impedance
headphones
Muting Full mute
BASS BOOST +6 dB at 70 Hz
TONE ±6 dB at 100 Hz and
10 kHz
Tuner section
FM Stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
Antenna terminals 75 Ω, unbalanced
Intermediate frequency 10.7 MHz
Sensitivity Mono: 18.3 dBf, 4.5 µV
Stereo: 38.3 dBf, 45 µV
Usable sensitivity 11.2 dBf, 2 µV (IHF)
S/N Mono: 76 dB
Stereo: 70 dB
Harmonic Mono: 0.3 %
distortion at 1 kHz Stereo: 0.5 %
Separation 45 dB at 1 kHz
Frequency response 30 Hz –15 kHz dB
Selectivity 60 dB at 400 kHz
+0.5
–2.0
+0.5
–2.0
AM tuner section
Tuning range 10 kHz interval*
530 – 1,710 kHz
9 kHz interval
531 – 1,710 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 10 kHz: 40 dB
At 9 kHz: 35 dB
* You can change the AM tuning interval between 9
kHz and 10 kHz. Turn off the receiver and press
the ?/1 (power) for more than 4 seconds until
“INITIAL” appears.
1) After turning in any AM station, turn off the
receiver.
2) Hold down PRESET TUNING + button and
press the ?/1 (power) button .
“9 k STEP” appears.
To change to 10 k Step, repeat step 1 and 2
until “10 k STEP” appears. Note that all preset
stations, index names and sound field are
cleared after you make the procedure above.
Ver 1.0 2000. 02

Sony STR-DE245/DE345 Specifications

General

Total harmonic distortion	0.09%
Dimensions	430 x 145 x 290mm
Weight	6.4kg
Tuning range	FM: 87.5 - 108 MHz
Frequency response	10Hz to 50kHz
Speaker load impedance	8 ohms

Summary

Manual Overview and Safety

Specifications

Lists power output, amplifier, and tuner performance details.

General and Model Information

Covers general specifications, model identification, and regional variants.

Safety Procedures and Component Warnings

Details safety checks, AC leakage testing, and critical component warnings.

Unit Operation and Controls

Front Panel Layout and Controls

Illustrates front panel components and describes button functions.

Rear Panel Connections

Diagrams and descriptions of rear panel input/output terminals.

Service Test Mode Procedures

Details various test modes including software version, key check, and factory reset.

Technical Diagrams and Schematics

System Block Diagram

High-level overview of the unit's signal paths and major components.

Integrated Circuit Details

Block diagrams and pin function descriptions for key integrated circuits.

Circuit Board Layouts

Illustrates the physical placement of various circuit boards within the unit.

Main Board Diagrams (Wiring & Schematic)

Printed wiring and schematic diagrams for the main circuit board.

Panel Section Diagrams (Wiring & Schematic)

Printed wiring and schematic diagrams for panel-related boards.

Power Section Diagrams (Wiring & Schematic)

Printed wiring and schematic diagrams for power supply related boards.

Video Section Diagrams (Wiring & Schematic)

Printed wiring and schematic diagrams for the video section.

Exploded Views and Parts Lists

Front Panel Exploded View and Parts

Exploded view and parts list for the front panel assembly.

Chassis Exploded View and Parts

Exploded view and parts list for the chassis assembly.

Display Section Parts List

List of electrical components for the display board.

Main Board Parts List Overview

Comprehensive list of electrical parts for the main board.

Other Board Parts Lists (Standby, Tuning, etc.)

List of electrical components for smaller boards like standby and tuning.

Accessories and Hardware

Included Accessories and Packing Materials

Lists all accessories and packing materials supplied with the unit.

Hardware List

Lists screws and other hardware items used in the unit.