Sony STR-DE485E - Service Manual

1
SERVICE MANUAL
US Model
Canadian Model
E Model
Australian Model
Chinese Model
STR-DE485
AEP Model
UK Model
STR-DE485E
STR-DE485/DE485E
FM STEREO/FM-AM RECEIVER
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 8 ohm loads, both channels driven, from
40 – 20,000 Hz; rated 80 watts per channel
minimum RMS power, with no more than
0.09 % total harmonic distortion from 250
milliwatts to rated output (STR-DE485 area
code US only).
Amplifier section
POWER OUTPUT
Models of area code US, CND
Rated Power Output at Stereo Mode
(8 ohms 40 Hz – 20 kHz, THD 0.09 %)
STR-DE485: 80 W + 80 W
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
STR-DE485: FRONT
1)
: 80 W/ch
CENTER
1)
: 80 W
SURR
1)
: 80 W/ch
Models of area code AEP, UK
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
STR-DE485E 80 W + 80 W
2)
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
STR-DE485E FRONT
1)
: 80 W/ch
CENTER
1)
: 80 W
SURR
1)
: 80 W/ch
SPECIFICATIONS
Models of other area code
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
80 W + 80 W
2)
Reference Power Output
2)
(8 ohms 1 kHz, THD 10 %)
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, AUS 240 V AC, 50 Hz
SP, AEP, UK 230 V AC, 50 Hz
TW 110 V AC, 60 Hz
MX 120 V AC, 60 Hz
Frequency response
MULTI CH IN 10 Hz – 50 kHz
(STR-DE485 only), CD, +0.5/–2 dB (with sound
MD/TAPE, DVD/LD, field, and tone bypassed)
VIDEO 1, 2
Inputs (Analog)
MULTI CH IN Sensitivity: 250 mV
(STR-DE485 only), CD, Impedance: 50 kilohms
MD/TAPE, DVD/LD, S/N
3)
: 96 dB
VIDEO 1, 2 (A, 250 mV
4)
)
3) INPUT SHORT (with sound field and tone
bypassed).
4) Weighted network, input level.
Ver 1.0 2002. 02
9-873-587-01
2002B0400-1
© 2002.02
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
Photo: STR-DE485
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.
“DTS” and “DTS Digital Surround” are registered
trademarks of Digital Theater Systems, Inc.
– Continued on next page –

Summary

GENERAL

Button Locations and Reference Pages

Guides users on finding button locations and corresponding reference pages.

Remote Control Operations

Details operations using the RM-U306 remote control, including button descriptions.

DISASSEMBLY

Component Removal Procedures

Provides step-by-step instructions for disassembling the unit, starting with the case.

TEST MODES

Special Operation Modes

Explains modes for software version display, factory presets, and key checks.

DIAGRAMS

IC Pin Descriptions and Locations

Details IC pinouts and circuit board locations for reference.

Block, Schematic, and Wiring Diagrams

Provides block, schematic, and PWB diagrams for various sections.

IC Block Diagrams

Shows simplified block diagrams for key integrated circuits.

EXPLODED VIEWS

Unit Component Assemblies

Presents exploded views of the case, chassis, and front panel sections.

ELECTRICAL PARTS LIST

Component Listing

Lists all electrical components including semiconductors, resistors, capacitors, and accessories.

Sony STR-DE485E Specifications