Product Information

STR-DE485

A/V Receiver

KEY FEATURES

80 Watts Per Channel x 5 (8 ohms, 1 kHz, THD 0.7%) Dolby Digital, dts and Dolby Pro Logic Decoding 1 Optical, 1 Coaxial Digital Input/1 Optical Output Digital Cinema Sound System with Cinema Studio EX Modes Discrete Output Transistors

ADDITIONAL FEATURES

Digital Section 32-Bit Dolby Digital, dts and Dolby Pro Logic Decoder Digital Cinema Sound System with Cinema Studio EX Modes dts Dolby Pro Logic Sound Field Programs: Cinema - 4 Music - 4 Auto Format Decoding - 1 Cinema Studio EX A/B/C Mode Amplifer Section 5 Channel Power Rating: 100W x 5 (8 ohms, 1 kHz, THD 0.7%) Stereo Power Rating: 100W x 2 (8 ohms, 20Hz 20kHz, THD 0.09%) 8 ohm Rated Amplifer Circuit Device: Discrete A Speaker for Front Speakers (8 - 16 ohms speakers only)
Inputs and Outputs 5.1 Multi-Channel Analog Input 2 Analog Audio Line Inputs/1 Analog Line Outputs 1 Optical, 1 Coaxial Input 1 Subwoofer Output 3 Composite Video Inputs/1 Composite Video Output 1 Composite Monitor Output 1/4" Headphone Jack Output Construction Features Push Type Speaker Terminals for Front A, Center, Rear Discrete Output Transistors
Convenience Features Sound Field Link Full Digital Cinema Sound System 30 Total Station Presets (20 FM/10 AM) Preprogrammed Remote Control

DIGITAL

OPTICAL VIDEO 2 IN

ANTENNA

MONITOR

VIDEO IN

VIDEO OUT
FM 75 COAXIAL DVD/LD IN COAXIAL
L L CENTER R R SUB WOOFER IN OUT IN AUDIO IN AUDIO IN AUDIO OUT AUDIO IN AUDIO OUT

SPEAKERS

SURROUND R L

IMPEDANCE USE 8 16

FRONT R L

CENTER

R FRONT SURROUND

MULTI CH I N

MD/TAPE DVD/LD VIDEO.2

VIDEO 1

SUB WOOFER

KEY TECHNOLOGY

Digital Cinema Sound The ultimate reference for theater performance is where your movie was born the dubbing stage. Directors mix, evaluate and approve the movie's final surround sound audio track before it arrives in a theater to be viewed. The dubbing stage is the movie's final proving ground for the director. Bringing the dubbing stage into your home represents the pinnacle in realistic movie sound, as the director intended it. Sony engineers, in collaboration with Sony Pictures Entertainment have captured three distinct dubbing stages to create Digital Cinema Sound processing. This recreation of dubbing stages in Digital Cinema Sound represents the ideal movie theater sound environment based on the preference of movie directors!

Specifications

Amplifier Section 5 Channel Power Rating: 80W x 5 (8 ohms, 1kHz, THD 0.7%) Stereo Power Rating: 80W x 2 (8 ohms, 20Hz 20kHz, THD 0.09%) Input Sensitivity/Impedance: Line/Multi-Channel Inputs: 250mV/50 kOhm Frequency Response: 10 Hz - 50kHz +0.5/-2dB (w/Soundfield and EQ bypassed) Rec Out Level/Impedance: 250 mV/10 kOhm Pre Out Level/Impedance: Subwoofer: 2V/1 kOhm Video Section Input Sensitivity/Impedance: Composite In:1Vp-p/75 ohm OutputSensitivity/Impedance: Composite Out: 1Vp-p/75 ohm

General

Power Requirements: AC120V, 60Hz Power Consumption (in Operation): 180W Power Consumption (Standby): 0.5W

Accessories

Supplied Accessories Instruction Manual FM Wire Antenna AM Loop Antenna RM-US306 Remote Commander Remote Control Size AA Batteries (2)

Weights & Measures*

Dimensions (W x H x D): 167/8" x 56/8" x 116/8" Weight: 15 lb. 7 oz.
*Weights and Measures are approximate.
2002 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony, CineMotion, Hi-Scan, Jog Dial, Precision Drive, and WEGA are trademarks of Sony. Dolby Digital is a registered trademark of Dolby Laboratories Licensing Corporation. dts is a registered trademark of Digital Theater Systems, Inc. All other trademarks and logos are property of their respective owners.

STR-DE485/DE485E

SERVICE MANUAL

Ver 1.0 2002. 02

US Model Canadian Model E Model Australian Model Chinese Model

STR-DE485

AEP Model UK Model

STR-DE485E

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.

SPECIFICATIONS

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 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 (STR-DE485 only), CD, MD/TAPE, DVD/LD, VIDEO 1, 2 Inputs (Analog) MULTI CH IN (STR-DE485 only), CD, MD/TAPE, DVD/LD, VIDEO 1, Hz 50 kHz +0.5/2 dB (with sound field, and tone bypassed)
Sensitivity: 250 mV Impedance: 50 kilohms S/N 3) : 96 dB (A, 250 mV 4) )
3) INPUT SHORT (with sound field and tone bypassed). 4) Weighted network, input level.

Continued on next page

FM STEREO/FM-AM RECEIVER

9-873-587-01

2002B0400-1 2002.02

Sony Corporation

Home Audio Company Published by Sony Engineering Corporation
STR-DE485/DE485E SECTION 3 TEST MODE
SOFTWARE VERSION DISPLAY MODE
* The software version is displayed. * Procedure: While depressing the [ENTER] and the SOUND FIELD [A.F.D.] buttons simultaneously, press the power ?/1 button to turn on the main power. The model name, destination and the software version are displayed.

FACTORY PRESET MODE

* All preset contents are reset to the default setting. * Procedure: While depressing the [VIDEO 1] and the SOUND FIELD [2CH] buttons simultaneously, press the power ?/1 button to turn on the main power. The message FACTORY appears and switch off the set. While depressing the [VIDEO 1] and the SOUND FIELD [2CH] buttons simultaneously, press the power ?/1 button again. The message FACTORY appears and the preset contents are reset to the default values.
FLUORESCENT INDICATOR TUBE TEST MODE
* All fluorescent segments are tested. When this test is activated, all segments turn on at the same time, then each segment turns on one after another. * Procedure: While depressing the [MD/TAPE] and the [SHIFT] buttons simultaneously, press the power ?/1 button to turn on the main power. 1. All segments turn on.
SW L SLEEP SP.OFF C R DDDIGITALPRO LOGIC DTS MPEGSTEREO MONO RDS OPT COAX MULTI CH IN D.RANGE EQ TA NEWS INFO dB kHz mft. MHz MEMORY MUTING

SOUND FIELD CLEAR MODE

* The preset sound field is cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedure: While depressing the SOUND FIELD [MODE] button, press the power ?/1 button to turn on the main power. The message S. F. CLR appears and initialization is performed.

(((LFE))) SL S SR

[MULTI CHANNEL DECODING], [Digital Cinema Sound], SOUND FIELD [A.F.D.], [MODE], [2CH] and [SET UP] LED turn on. 2. Press the [VIDEO 1] button, confirm display
SW L LFE S SLEEP R k m MHz DD COAX PRO LOGIC MPEGSTEREO D.RANGE TA RDS INFO MUTING
AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE
* Either the 9 kHz step or 10 kHz step can be selected for the AM channel step. * Procedure: Set the [TUNER] to [AM]. Turn off the main power. While depressing the [TUNING+] button or the [PRESET TUNING ] button, press the power ?/1 button to turn on the main power. Either the message 9 k STEP or 10 k STEP appears. Select the desired step. * For US/E model only
SOUND FIELD [A.F.D], [MODE], SOUND CONTROL [LEVEL], [SET UP] and [Digital Cinema Sound] LED turn on. 3. Press the [VIDEO 1] button, confirm display
SP.OFF C ((( SL ))) SR DIGITAL DTS OPT MULTI CH IN EQ MONO NEWS dB Hz ft. MEMORY

KEY CHECK MODE

* Button check * Procedure: While depressing the [VIDEO 1] and the [SHIFT] buttons simultaneously, press the power ?/1 button to turn on the main power. REST 39 appears. Every pressing of any button other than the ?/1 , [TREBLE+, ] and the [BASS+, ] counts down the buttons. The buttons which are already counted once are not counted again. When all buttons are pressed REST 04 appears. When [MASTER VOLUME] is rotated in clockwise direction, VOL MIN, VOL 1 to VOL 73, VOL MAX appear.
[MULTI CHANNEL DECODING], SOUND FIELD [2CH], SOUND CONTROL [SURR] and [NAME] LED turn on. 4. Press the [VIDEO 1] button, All segments turn off. 5. Every pressing of the [VIDEO 1] button turns on each segment and LED one after another in the same order. (Not only the [VIDEO 1] button, but also the other buttons such as [VIDEO 2], [DVD/LD], [MD/TAPE], [CD], [TUNER] can be used.)
4-8. SCHEMATIC DIAGRAM MAIN SECTION (1/2) Refer to page 20 for Common Note on Schematic Diagram.
C481 J404 CC07 R407 C407 CC57 R457 C457 R427 R447

R373 Q361

R406 C406 R456 C456

R426 IC201 R446 R363

R361 C371 C372

R408 C408 R458 C458 C485 C482

R360 R374 Q362

(Page 23)
J403 CC05 R405 R455 C405 C455 R425 R445

JW300 C495 C419

C486 R375 R367

R379 CNP502 JW100

C373 C374 R366 Q364
JW400 CC04 R404 R454 C404 C454 R424 R444

C418 C496 C417

R368 R376

J402 R409 R459 C409 C459

C494 R377 R371

(Page 27)

R369 CNP911

C375 C376 R370

C415 R372

CC02 R402 R452

C402 C452

R414 R413 R417

R418 R419

R442 C488

C465 C464
J401 R461 R462 C461 C462 R463 R464 C413 C433 C467 C466 R432 R412 C432 C412 R436 R416 C487 C489 C490 C497 Q471 R471 R472 R381 R475 Q379

R431 R411

C431 C411

R435 R415

D802 C471
J405 R469 RY560 R532 D560 Q560 R560 IC401 R470
R474 C498 C472 C803 CNP801

R473 C804

(Page 33)

CNP802 D905 R910 C901

(Page 29)

CNP501

C811 C822

D804 Q801 R803

R806 IC802 C801 C802

C830 CNP915

(Page 26)
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi.
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

IC B/D
C717 R742 Q748 R744 C710 C701 R701 C655 C656 C707 C651 R702 R651 C716 C669 Q654 R654 R703 C703 R704 C660 Q652 R666 R671 R672 IC702 Q651 R674 R660 R661 R664 Q653 R743 C666 R669 C670 D665 Q656 R667 R663 R665 Q655 L651 R668 R640 C661 C642 C706 C705 R713 R715 Q704 R725 R638 D705 R710 R711 IC701 Q701 R714 Q703 R716 Q702 C711 Q706 R717 R748 R719 C720 Q705 R721 R722 R724 R740 C742 L701 R718

R792 R723

C792 C790 RY791 J791
R794 R745 D740 R746 Q740 R747 C740 CC13 CC12 TM602 RR11 R793 D791 R791 Q790

C654 C657 R652 R653 C653

R675 D640
R676 R734 D710 R731 Q710 Q640 CC15 CC14 RR12
C640 RR13 RR14 CC16 CC18 TM601 R770 CC17 CC19
R623 C751 R751 C605 C606 C756 C601 R601 C757 R752 Q601 R602 R603 C607 C604 R604 R753 C753 C754 R754 C616 C617 IC501 C767 Q754 R763 C760 R771 Q752 R766 R765 Q755 R750 C761 R760 R505 C507 R502 R503 C503 C504 Q751 C732 C733 R761 R764 Q753 C766 R732 R733 C517 R510 D691 Q692 IC601 D690 Q691 R698 R691 R693 C691 R694 R699 R695 R690 R696 C510 Q502 R513 R515 Q504 C516 Q506 R525 R516 R521 R522 R524 Q501 R511 R514 Q505 Q503 R769 C770 C519 R520 L521 R555 R528 R540 C511 R546 R517 D505 R557 C540 C541 D540 R556 R534 R573 Q756 D765 R772 R778 R767 R775 L751 R768 C752 D750 R755 R756 R634 C610 R613 R615 Q604 C620 R625 Q606 Q602 R621 R622 R624 C611 R617 R736 D605 R773 R681 R657 C680 C755 R620 R610 R611 R614 Q605 R616 R680 C681 D680 R656 Q680 C619 R618 R655 R780 D722 D721 C621 Q603 L601 Q725

Q723 R735 Q722

(Page 22)

RR15 RY601

D610 R631 Q610

C501 R501

C505 C506

D510 R531 Q550

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.

C1111 C1112 R1115

C1129 FB1102

FB1201 C1214

JR1116 R1101 C1126 IC1105 JR1115 R1121 JR1122 C1121 C1107 R1106 C1119 J1101 R1116 C1124 C1101 C1106 R1107 R1105 R1104 C1104 C1103 C1102 C1113 IC1101 R1110 R1113 C1127

FB1202

IC1202
R1117 C1213 R1204 R1118 R1119 C1114 FB1104 IC1102 R1112 FB1105 R1100 R1124 C1131 C1205 X1101 C1204 C1218

FB1101 D1001

TP1220

TP1219

TP1218

TP1217

TP1216

TP1215

R1506 C1502
IC1502 C1220 TP1213 R1222 R1221 R1501 R1502 R1220 C1206 R1557 C1207 R1554 R1555 R1556 C1552 R1216 R1215 FB1501 R1509 R1214 TP1209 TP1208 C1201 R1219 R1218 R1217 IC1201 C1202 TP1212 TP1211 TP1210

C1522 C1501 R1503 C1523

IC1552

C1511 C1512

R1213 R1212

TP1214

D1501 JR1103 D1502 C1216 R1203 R1553 C1513 C1515 C1208 R1551 R1552 C1503 C1504 R1507 C1514 R1508 JR1104 C1508 R1210 C1219 IC1501 TP1221 TP1222

TP1207 TP1206 TP1205

JR1121

TP1203 R1207 R1206 R1208

IC1503

TP1202

FB1203

TP1204

TP1201

FB1502

FB1204
4-13. SCHEMATIC DIAGRAM DIGITAL SECTION (2/2) Refer to page 20 for Common Note on Schematic Diagram and Waveform.

R1688 CNP6

D1907 IC1904
L1901 IC1903 D1906 D1905 IC1901 C1910 C1908 C1909 C1906 C1905 C1911

FB1601 C1912

JR1111

C1611 C1610 R1707

R1650 R1651

CNS8 R1668

IC1602
R1690 C1619 R1305 R1304 R1704 R1703

IC1902 C1617

FB1603

(Page 31)

R1674 R1308 R1664 R1665 R1699 R1698 R1638 R1631 R1602 R1667 R1673 R1600 R1669 R1641 R1640 R1639 R1658
JR1112 JR1113 C1618 C1606

R1642 C1914 C1913 C1612

IC1905 C1628 C1629 X1601 FB1602 R1635 R1687 R1661 R1659 R1637 R1676 R1677 R1678 R1679 C1607 R1634 R1633 C1631 C1632 R1630 R1629 R1628 R1627 C1602 R1662 R1663 R1686 R1685 R1649 R1710 R1711 R1705 R1684 R1620
R1636 C1605 C1604 C1620 C1603 R1666 R1697 R1632 JR1114 C1633 C1616 C1615 C1614 C1613 CNS3 C1635

CNS7 TM301

C1626 C1229

IC1601

R1643 R1694 R1644 R1645 R1314 R1364 R1646 R1647 R1648

IC1604

R1709 R1706

R1604 R1605

R1606 R1607 R1608

R1609 R1610

R1612 R1613

R1614 R1615 R1622

R1617 R1618
R1626 R1623 C1634 D1601 R1624 Q1602 R1656 CNS2 R1657 Q1601 R1625 R1682

C1309 C1310 C1311

JR1110
4-15. SCHEMATIC DIAGRAM VIDEO SECTION Refer to page 20 for Common Note on Schematic Diagram and page 34 for IC Block Diagrams.
R201 C208 C214 R220 C201 C210 R219 C209

R200 C206

IC807 CNP156 3P C827 C824

IC103 C207

CNS150
4-17. SCHEMATIC DIAGRAM DISPLAY SECTION Refer to page 20 for Common Note on Schematic Diagram.
D111 R168 R167 R166 R111 D105 D104 D103 S110 S111 S112 S113 S114 S115 S116 S117 S118 S119 R112 R113 R114 R115 R116 R117 R118 R119

D114 R163 R162

D112 R161 R160

R164 R150 IC100

R142 R121 R122 R123 R124 R125 R126 R127 R128
R165 D102 R171 IC101 C104 R170 C145

R169 D100

C112 C111 C110

C100 C115 C144

Q104 S130 S131 S132 S133 S134 S135 S136 S137 CNP104 S143 CNP103 S144 S145

CNS100

C132 C133 C134 C135 C136 C137 C138 C139 C140 C141 C142 C143
C157 RV102 C109 IC102 C160 C159 C158

L101 C155

R198 R199 R153 R155 FL101 C105 C114 R154
4-19. SCHEMATIC DIAGRAM POWER SECTION Refer to page 20 for Common Note on Schematic Diagram.

CNP910

CNP907

CNP903

CNP902

CNP905 C815

R810 R812 Q901 F901
C813 D821 D822 R811 R903 R902 C814 C899 R904 T902 D898 D899 D910 D901 RY901 JW903 CNP906
D911 C950 C920 R901 Q921 R923 D913 D915 G901 D914 D912 R922 C923 C921 C922