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Sony STR-DE485 Service Manual
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Sony STR-DE485 Service Manual

Sony STR-DE485 Service Manual

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STR-DE485/DE485E
SERVICE MANUAL
Ver 1.0 2002. 02
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.
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)
CENTER
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
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
1)
STR-DE485E
FRONT
CENTER
1)
SURR
: 80 W/ch
Sony Corporation
9-873-587-01
2002B0400-1
Home Audio Company
© 2002.02
Published by Sony Engineering Corporation
Photo: STR-DE485
SPECIFICATIONS
: 80 W/ch
1)
: 80 W
2)
: 80 W/ch
1)
: 80 W
Australian Model
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
(8 ohms 1 kHz, THD 10 %)
1)
FRONT
CENTER
1)
SURR
: 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
3)
MD/TAPE, DVD/LD,
S/N
: 96 dB
VIDEO 1, 2
(A, 250 mV
3) INPUT SHORT (with sound field and tone
bypassed).
4) Weighted network, input level.
FM STEREO/FM-AM RECEIVER
US Model
Canadian Model
E Model
Chinese Model
STR-DE485
AEP Model
UK Model
STR-DE485E
2)
: 100 W/ch
1)
: 100 W
4)
)
– Continued on next page –
1

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Summary of Contents for Sony STR-DE485

  • Page 1 FRONT : 100 W/ch 0.09 % total harmonic distortion from 250 CENTER : 100 W milliwatts to rated output (STR-DE485 area SURR : 100 W/ch code US only). 1) Depending on the sound field settings and the source, there may be no sound output.

  • Page 2: Section 3 Test Mode

    STR-DE485/DE485E SECTION 3 TEST MODE SOFTWARE VERSION DISPLAY MODE FACTORY PRESET MODE * The software version is displayed. * All preset contents are reset to the default setting. * Procedure: * Procedure: While depressing the [ENTER] and the SOUND FIELD [A.F.D.]...
  • Page 3 STR-DE485/DE485E 4-8. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 20 for Common Note on Schematic Diagram. C481 C491 C483 C493 J404 CC07 R407 C407 R427 R447 CC57 R457 C457 C492 R373 R406 C406 Q361 R426 R361...
  • Page 4 STR-DE485/DE485E 4-9. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 20 for Common Note on Schematic Diagram and page 34 for IC Block Diagrams. CNP791 Q747 CN792 C792 C790 IC B/D R792 RY791 R723 J791 C717 R719...
  • Page 5 STR-DE485/DE485E 4-12. SCHEMATIC DIAGRAM — DIGITAL SECTION (1/2) — • Refer to page 20 for Common Note on Schematic Diagram and Waveform and page 34 for IC Block Diagrams. C1129 C1111 FB1102 (Page 27) C1112 R1115 IC B/D FB1202 FB1201...
  • Page 6 STR-DE485/DE485E 4-13. SCHEMATIC DIAGRAM — DIGITAL SECTION (2/2) — • Refer to page 20 for Common Note on Schematic Diagram and Waveform. CNP5 (Page 33) R1688 CNP6 D1907 IC1904 L1901 IC1903 D1906 D1905 IC1901 (Page 22) C1908 C1906 C1912 C1905...
  • Page 7 STR-DE485/DE485E 4-15. SCHEMATIC DIAGRAM — VIDEO SECTION — • Refer to page 20 for Common Note on Schematic Diagram and page 34 for IC Block Diagrams. J201 R201 C208 C214 R219 R220 C201 C210 C209 C200 J200 R200 IC B/D...
  • Page 8 STR-DE485/DE485E 4-17. SCHEMATIC DIAGRAM — DISPLAY SECTION — • Refer to page 20 for Common Note on Schematic Diagram. R101 R102 R103 R104 R105 R106 R107 R108 R109 S100 S101 S102 S103 S104 S105 S106 S107 S108 S109 Q111 D113...
  • Page 9 STR-DE485/DE485E 4-19. SCHEMATIC DIAGRAM — POWER SECTION — • Refer to page 20 for Common Note on Schematic Diagram. T901 CNP910 CNP907 JW799 (Page 22) S901 (Page 22) CNP903 CNP902 CNP905 R810 D820 D823 C815 Q901 F901 R812 C813 C816...

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