Sony STR-DE445 Service Manual

1
STR-DE445/DE545/SE501
US Model
STR-DE445/DE545/SE501
Canadian Model
AEP Model
UK Model
STR-DE445/DE545
E Model
Australian Model
Chinese Model
PX Model
STR-DE545
FM STEREO FM-AM RECEIVER
SERVICE MANUAL
SPECIFICATIONS
Dolby Laboratories Licensing Corporation.
“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”
are trademarks of Dolby Laboratories Licensing Corporation.
Photo: STR-DE445
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8 Ω loads, both channels driven, from
20 – 20,000 Hz; rated 100
a)
W per channel
minimum RMS power, with no more than
0.09% total harmonic distortion from 250
mW to rated output (US model only).
STR-DE445:
a) 80 W
Amplifier section
Rated Power Output at Stereo mode
US model:
(8 Ω 20 Hz – 20 kHz, THD
0.09 % )
EXCEPT US:
(8 Ω 1 kHz, THD 0.7 %)
STR-DE545/SE501:
100 W + 100 W
STR-DE445:
80 W + 80 W
Reference Power Output
(8Ω at 1 kHz, THD 0.7 %)
STR-DE545/SE501:
Front: 100 W + 100 W
Center: 100 W
Rear: 100 W + 100 W
STR-DE445:
Front: 80 W + 80 W
Center: 80 W
Rear: 80 W + 80 W
Frequency response
CD, MD/TAPE, DVD/LD, TV/
SAT, VIDEO, AUX:
10 Hz – 50 kHz +0.5/–2 dB
(with sound field, tone, and
bass boost bypassed)
Inputs (Analog) 5.1 CH INPUT, CD, DVD/LD,
MD/TAPE, TV/SAT, VIDEO,
AUX:
Sensitivity: 250 mV
Impedance: 50 kΩ
S/N
b)
: 96 dB (A, 250 mV
c)
)
b) Input short.
c) Weighted nework, input level.
Inputs (Digital) DVD/LD (coaxial):
Sensitivity: —
Impedance: 75 Ω
S/N: 100 dB (A, 20 kHz LPF)
DVD/LD, TV/SAT* (Optical):
Sensitivity: —
Impedance: —
S/N: 100 dB (A, 20 kHz LPF)
*) STR-DE545 and STR-SE501 only.
Outputs MD/TAPE, (REC OUT); VIDEO
(AUDIO OUT):
Voltage: 250 mV,
Impedance: 10 kΩ
SUB WOOFER:
Voltage: 2 V
Impedance: 1 kΩ
PHONES:
Accepts low- and high-
impedance headphones
BASS BOOST +6 dB at 70 Hz
TONE ±6 dB at 100 Hz and 10 kHz
Sampling Frequency
48 kHz
FM tuner section
Tuning range 87.5 – 108.0 MHz
Antenna terminals 75 Ω, unbalanced
Sensitivity Mono: 18.3 dBf, 2.2 µV/75 Ω
Stereo: 38.3 dBf, 22.5 µV/75 Ω
Usable sensitivity 11.2 dBf, 1 µV/75 Ω
S/N Mono: 76 dB
Stereo: 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
— Continued on next page —

Sony STR-DE445 Specifications

General

Video Connections	Composite
Total Harmonic Distortion	0.09%
Frequency Response	10 Hz - 50 kHz
Digital Inputs	1 optical, 1 coaxial
Dimensions	430 x 145 x 310 mm
Tuning Range	FM
Input Sensitivity	150mV (line)
Tuner Frequency Range	FM: 87.5 - 108 MHz, AM: 522 - 1611 kHz

Summary

Specifications

Audio Power Specifications

Power output and total harmonic distortion for different loads.

Amplifier Section Specifications

Rated power output and frequency response for amplifier.

FM Tuner Section Specifications

Tuning range, sensitivity, S/N, and distortion for FM reception.

Additional Specifications

AM Tuner Section Specifications

Tuning range, sensitivity, S/N, and distortion for AM reception.

Video Section Input/Output Specs

Specifications for video input and output signals.

General System and Power Specs

System type, power requirements, consumption, dimensions, and mass.

Model Identification

Part numbers cross-reference for various model versions.

Safety Check-out Procedures

AC Leakage Testing

Methods to check AC leakage from exposed metal parts to ground.

Safety Component Identification

Highlights critical components essential for safe operation.

General Information and Controls

Front Panel Controls

Identifies and describes front panel buttons, knobs, and jacks.

Rear Panel Connections

Details rear panel input/output jacks and terminals.

Test Mode Operations

Software Version Display Mode

Displays model name, destination, and software version.

Indicator Tube Test Mode

Tests all fluorescent segments of the display for functionality.

Clear Modes Procedures

Guides for All Clear Mode and Surround Clear Mode.

Channel Step & Factory Reset

Procedure for AM channel step selection and factory reset.

Diagrams and Schematics

Circuit Boards Location

Diagram showing physical location of internal circuit boards.

Block Diagrams - Main Section

Main section block diagram illustrating signal flow and components.

Printed Wiring Board - Digital Section

Layout of components on the digital board (Side A and B).

Schematic Diagram - Digital Section

Circuit schematic for the digital board.

Printed Wiring Board - Main Section

Layout of components on the main board.

Schematic Diagram - Main (1/3) Section

Circuit schematic for the main board (part 1).

Schematic Diagram - Main (2/3) Section

Circuit schematic for the main board (part 2).

Schematic Diagram - Main (3/3) Section

Circuit schematic for the main board (part 3).

Printed Wiring Board - Display Section

Layout of components on the display board.

Schematic Diagram - Display Section

Circuit schematic for the display board.

Printed Wiring Board - Video/Key Section

Component layout for tuner, video, and power switch boards.

Schematic Diagram - Video/Key Section

Circuit schematic for video and key sections.

Printed Wiring Board - Power Supply Section

Component layout for power supply and standby boards.

IC Pin Functions

Detailed pin functions for IC1004 on the digital board.

IC Block Diagrams

Block diagrams for key integrated circuits (ICs).

Exploded Views

Front Panel Exploded View

Exploded view detailing front panel assembly parts.

Chassis Exploded View

Exploded view detailing chassis assembly parts.

Electrical Parts List

AC SEL & Digital Board Parts

List of components for AC SEL and Digital boards.

Main Board Parts List

List of components for the Main board.

Power Switch, STBY, Other Boards Parts

List of components for Power Switch, STBY, and other boards.

S-Video, Tuner, Video Board Parts

List of components for S-Video, Tuner, and Video boards.

Video Section Component List

List of specific components related to the video section.

Accessories and Packing Materials

List of included accessories and packing materials.

Hardware List

List of screws and hardware used in the unit.