Sony STRDE-685 Service manual

STR-DE685

SERVICE MANUAL

Ver 1.0 2002. 03

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

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Tourist Model

Chinese Model

AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL

HARMONIC DISTORTION:

With 8 ohm loads, 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 (Models of area code US only).

Amplifier section

POWER OUTPUT

Models of area code US, CND Rated Power Output at Stereo Mode (8 ohms 20 Hz – 20 kHz, THD 0.09 %)

Reference Power Output (8 ohms 1 kHz, THD 0.7 %)

FRONT

: 100 W/ch

CENTER SURR

Models of area code AEP, UK Rated Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %)

Reference Power Output (8 ohms 1 kHz, THD 0.7 %) FRONT CENTER SURR

: 100 W

: 100 W/ch

: 100 W

: 100 W/ch

100 W + 100 W

Models of other area code Rated Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %)

Reference Power Output (8 ohms 1 kHz, THD 10 %)

FRONT

: 120 W/ch

CENTER SURR

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, JE 240 V AC, 50 Hz AEP, UK, CH, SP, MY, 230 V AC, 50 Hz AR, KR TW 110 V AC, 60 Hz US, CND, MX 120 V AC, 60 Hz

Frequency response MULTI CH IN, 10 Hz – 70 kHz

CD/SACD, AUX, +0.5/–2 dB (with sound MD/TAPE, DVD/LD, field, equalizer, and bass VIDEO 1, 2, 3 boost bypassed)

Inputs (Analog) MULTI CH IN, Sensitivity: 250 mV

CD/SACD, AUX, Impedance: 50 kilohms MD/TAPE, DVD/LD, S/N VIDEO 1, 2, 3 (A, 250 mV

3) INPUT SHORT (with sound field , equalizer and bass boost bypassed).

4) Weighted network, input level.

: 120 W

: 120 W/ch

100 W + 100 W

: 96 dB

)

– Continued on next page –

9-873-687-01

FM STEREO/FM-AM RECEIVER

Sony Corporation

Home Audio Company Published by Sony Engineering Corporation

STR-DE685

Inputs (Digital) DVD/LD (Coaxial) Sensitivity: –

VIDEO 2, CD/SACD, Sensitivity: – MD/TAPE (Optical) Impedance: –

Outputs (Analog) MD/TAPE (OUT), Voltage: 250 mV

VIDEO1 (AUDIO OUT) Impedance: 10 kilohms SUB WOOFER V oltage: 2 V

Outputs (Digital) MD/TAPE (Optical) Sensitivity: –

Gain levels: ±6 dB, 1 dB step

Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF)

S/N: 100 dB (A, 20 kHz LPF)

Impedance: 1 kilohms

FM tuner section

Tuning range 87.5 - 108.0 MHz Antenna terminals 75 ohms, unbalanced Intermediate frequency 10.7 MHz Sensitivity

Mono: 18.3 dBf, 2.2 µV/75 ohms

Stereo: 38.3 dBf, 22.5 µV/75 ohms Usable sensitivity 11.2 dBf, 1 µV/75 ohms 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,

Selectivity 60 dB at 400 kHz

+0.5/–2 dB

AM tuner section

Tuning range

Models of area code US, CND

With 10-kHz tuning scale: 530 – 1710 kHz

With 9-kHz tuning scale: 531 – 1710 kHz

Models of area code E, MX, AR

With 10-kHz tuning scale: 530 – 1610 kHz

With 9-kHz tuning scale: 531 – 1602 kHz

Models of area code AEP, UK, AUS, JE, CH, SP, MY,

TW, KR

With 9-kHz tuning scale: 531 – 1602 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 9 kHz: 35 dB At 10 kHz: 40 dB

5) You can change the AM tuning scale to 9 kHz or

10 kHz. After tuning in any AM station, turn off the receiver. Hold down PRESET TUNING + and press ?/1 . All preset stations will be erased when you change the tuning scale. To reset the scale to 10 kHz (or 9 kHz), repeat the procedure.

Video section

Inputs

Video: 1 Vp-p, 75 ohms S-video: Y: 1 Vp-p, 75 ohms

C: 0.286 Vp-p, 75 ohms

Component Video: Y: 1 Vp-p, 75 ohms

PB B-Y: 0.7 Vp-p, 75 ohms PR R-Y: 0.7 Vp-p, 75 ohms

Outputs

Video: 1 Vp-p, 75 ohms S-video: Y: 1 Vp-p, 75 ohms

C: 0.286 Vp-p, 75 ohms

Component Video: Y: 1 Vp-p, 75 ohms

PB B-Y: 0.7 Vp-p, 75 ohms PR R-Y: 0.7 Vp-p, 75 ohms

General

Power requirements Area code Power requirements

US, CND, MX 120 V AC, 60 Hz AEP, UK 230 V AC, 50/60 Hz CH, SP, MY, AR, KR 220 – 230 V AC, 50/60 Hz E, JE 120/220/240 V AC, 50/60 Hz TW 110 V AC, 50/60 Hz AUS 240 V AC, 50Hz

Power consumption Area code Power consumption

US, MX 210 W CND 300 V A AEP, UK, E, AUS, JE, 180 W CH, SP, MY, AR, KR TW 450 W

Power consumption (during standby mode)

0.5 W (when “A.PWR” in the SET UP menu is set to “OFF”).

AC outlets Area code AC outlets

US, CND 1 switched, 120 W/1A MAX AEP, UK, E, AUS, JE, 1 switched, 100 W MAX MX, SP, MY, TW

Dimensions 430 × 157.5 × 308.5 mm

(16 7/8 × 6 2/8 × 12 1/8 inches) including projecting parts

and controls Mass (Approx.) 7.5 kg (16 lb 9 oz) Supplied accessories

FM wire antenna (1) AM loop antenna (1) Remote commander (1)

• RM-PP411 (models of area code US, CND only)

• RM-U305C (except for models of area code US, CND) R6 (size-AA) batteries (2)

Design and specifications are subject to change without notice.

•Abbreviation

CND : Canadian model AUS: Australian model JE : Tourist model CH : Chinese model MX : Mexican model SP : Singapore model MY : Malaysia model TW : Taiwan model AR : Argentina model KR : Korean model

STR-DE685

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers.). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

MODEL IDENTIFICATION

— BACK PANEL —

Part No.

Area code Part No.

Australian 4-238-191-2s Singapore 4-238-191-3s Malaysia 4-238-191-4s E 4-238-191-5s AEP 4-238-191-6s UK 4-238-191-7s Mexican 4-238-191-8s Argentina 4-238-191-9s Canadian 4-238-192-2s US 4-238-192-3s Taiwan 4-238-192-4s Korean 4-238-192-5s Chinese 4-238-192-6s Tourist 4-238-192-7s

1.5 k

0.15 µF

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHO WN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

Ω

Earth Ground

AC voltmeter (0.75 V)

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

STR-DE685

1. GENERAL

Main unit ................................................................................. 5

Remote button description (US, Canadian model only).......... 6

Remote button description (Except US, Canadian model)...... 7

2. DISASSEMBLY

2-1. Case ..................................................................................... 8

2-2. Front Panel Section ............................................................. 9

2-3. Headphone Board, Video3 Board ........................................9

2-4. Back Panel Section............................................................ 10

2-5. Digital Board .....................................................................10

2-6. Standby Board ...................................................................11

2-7. Main Board ....................................................................... 11

3. TEST MODE ...................................................................... 12

4. DIAGRAMS

4-1. IC Pin Descriptions ........................................................... 13

4-2. Block Diagram – Tuner/Audio Section –.......................... 17

4-3. Block Diagram – Digital Section – ................................... 18

4-4. Block Diagram – Key/Display Section – .......................... 19

4-5. Block Diagram – Video Section – ..................................... 20

4-6. Block Diagram – Power Section – .................................... 21

4-7. Circuit Boards Location .................................................... 22

4-8. Printed Wiring Boards – Main Section – .......................... 23

4-9. Schematic Diagram – Main Section (1/2) – ......................24

4-10. Schematic Diagram – Main Section (2/2) – ......................25

4-11. Printed Wiring Board – Digital Section (1/2) – ................ 26

4-12. Printed Wiring Board – Digital Section (2/2) – ................ 27

4-13. Schematic Diagram – Digital Section (1/2) – ................... 28

4-14. Schematic Diagram – Digital Section (2/2) – ................... 29

4-15. Printed Wiring Boards – Display Section – ...................... 30

4-16. Schematic Diagram – Display Section –........................... 31

4-17. Printed Wiring Board – Speaker B Section – ....................32

4-18. Schematic Diagram – Speaker B Section –....................... 32

4-19. Printed Wiring Boards – Video Section – ......................... 32

4-20. Schematic Diagram – Video Section – .............................. 33

4-21. Printed Wiring Board – S-video Section – ........................ 34

4-22. Schematic Diagram – S-video Section –........................... 34

4-23. Printed Wiring Board – Component Video Section – ....... 35

4-24. Schematic Diagram – Component Video Section – .......... 35

4-25. Printed Wiring Boards – Power Section –......................... 36

4-26. Schematic Diagram – Power Section – .............................37

4-27. IC Block Diagrams............................................................ 38

5. EXPLODED VIEWS

5-1. Case Section ...................................................................... 40

5-2. Front Panel Section ........................................................... 41

5-3. Chassis Section-1 .............................................................. 42

5-4. Chassis Section-2 .............................................................. 43

6. ELECTRICAL PARTS LIST......................................... 44

SECTION 1

GENERAL

List of Button Locations and Reference Pages

Use this page to find the location of buttons that are mentioned in the text.

Main unit

Illustration number

NAME qf (37)

R R

Name of button/part

STR-DE685

This section is extracted from instruction manual.

Reference page

2 CH ea (27)

A.DEC ed (25, 27) AM (Except for models of area

code CEL, CEK) ej (32, 33) AUX wj (23) CD/SACD wd (23) CINEMA STUDIO EX A,B,C qh

(26) Digital Cinema Sound (indicator)

qj (25) DIMMER 5 (24) DISPLAY 4 (24, 35, 55) Display qg (24) DVD/LD wh (23)

ENTER ef (3 EQ qk (31, 59) EQUALIZER qk (31) FM (Except for models of area

code CEL, CEK) ek (32, 33)

123 5

6 qa qs

FM/AM (Models of area code

CEL, CEK only) ej (32, 33)

FM MODE (Models of area code

CEL, CEK only) ek , (Except for models of area code CEL,

CEK) el (33) INPUT MODE ql (23) IR (receptor) 6 (42, 49, 55) Jog dial eh (18, 29, 31, 37, 38)

LEVEL qs (18, 22, 29, 59) MASTER VOLUME wk (22, 53) MD/TAPE wa (23) MEMORY ra (32, 34) MODE es (26, 31, 54) MULTI CHANNEL DECODING

(indicator) qa (23) MULTI CH IN e; (23) MUTING wl (24, 53) NAME qf (37)

PHONES (jack) 3 (24, 54) PRESET/PTY SELECT +/–

(Models of area code CEL, CEK

only) 7 (34, 35)

PRESET TUNING +/– (Except

for models of area code CEL, CEK) 7 (34, 57)

PTY (Models of area code CEL,

CEK only) el (35) SET UP qd (4, 18, 38, 59) SHIFT r; (34) SPEAKERS A/B 2 (24, 29, 53) SURR 0 (29, 59)

TUNER wg (23, 33, 34, 37) TUNING +/– 8 (33) VIDEO 1 w; (23) VIDEO 2 ws (23) VIDEO 3 wf (23) VIDEO 3 INPUT (jacks) rs (9)

`/1 (power) 1 (4, 17, 22, 31,

32, 57) </> eg (18, 29, 31, 37, 38)

wd wg wj

qdqf qg qj qk ql w; ws wf

wkwle;eaesedejekelr;rars eh efeg

STR-DE685

(US, Canadian model only)

Operations Using the Remote RM-PP411

You can use the remote RM-PP411 to operate the components in your system.

Before you use your remote

Insert R6 (size-AA) batteries with the + and – properly oriented in the battery compartment. When using the remote, point it at the remote sensor on the receiver.

Under normal conditions, the batteries should last for about 6 months. When the remote no longer operates the receiver, replace all batteries with new ones.

Remote button description

TV ?/1 AV ?/1

USE MODE

SYSTEM STANDBY

VIDEO1 VIDEO2

AV1 AV2

MD/TAPE CD/SACD

TV/SAT

PHONO AUX

SOUND FIELD

TEST TONE

PRESET

123

MPX/

ANALOG

DUAL

DIRECT

456

SWAP/

AUDIO

ANGLE

789

SUBTITLE ENTER

0/10 >10/11 12

SHIFT

D.TUNING DISC ALT

ANT

CLEAR

TOP MENU/

GUIDE

ENTER/ EXECUTE

DISPLAY

TV VOL TV CH

RETURN/EXIT

?/1

SLEEP

VIDEO3 DVD/LD

TUNER

MULTI CH SOURCE

AUTO DEC

MODE

2CH

JUMP/

PRESET/

TIME

CH/D.SKIP

SEARCH MODE

MUTING

AV MENU

MASTER

VOL

TV/

MAIN

VIDEO

WIDE ON SCREEN

• Do not leave the remote in an extremely hot or humid place.

• Do not use a new battery with an old one.

• Do not expose the remote sensor to direct sunlight or lighting apparatuses. Doing so may cause a malfunction.

• If you don’t use the remote for an extended period of time, remove the batteries to avoid possible damage from battery leakage and corrosion.

The tables below show the settings of each button.

Remote Operations Function Button

?/1 Receiver SLEEP Receiver Activates the sleep

Turns the receiver on or off.

function and the duration which the receiver turns

off automatically.

(Except US, Canadian model)

Operations Using the Remote RM-U305C

You can use the remote RM-U305C to operate the components in your system.

Before you use your remote

Insert R6 (size-AA) batteries with the + and – properly oriented in the battery compartment. When using the remote, point it at the remote sensor on the receiver.

Remote button description

SLEEPAV?/1

SYSTEM STANDBY

FUNCTION

VIDEO 1

VIDEO 2

VIDEO

DVD/LD

MD/TAPE

PHONO

AUX

CD/SACD

123

456

TITLE

789

SHIFT

>10

– /– –

SWAP

POSITION

– SUB CH +

P IN P

DISPLAY

WIDE

JUMP

SOUND FIELD

2CH/OFF

A.DEC

–

MODE

MAIN MENU

TEST TONE

ENTER

?/1

VIDEO 3

TV/SAT

FN SHIFT

TUNER

RETURN

ENTER

D.TUNING

D.SKIP/

CH/PRESET

ANT

TV/VTR

DISC

TV/

VIDEO

MULTI/2CH

A. DIRECT

MUTING

MASTER

VOL

STR-DE685

Under normal conditions, the batteries should last for about 6 months. When the remote no longer operates the receiver, replace all batteries with new ones.

Do not leave the remote in an extremely hot or

• humid place.

• Do not use a new battery with an old one.

• Do not expose the remote sensor to direct sunlight or lighting apparatuses. Doing so may cause a malfunction.

• If you don’t use the remote for an extended period of time, remove the batteries to avoid possible damage from battery leakage and corrosion.

The tables below show the settings of each button.

Remote Operations Function Button

SLEEP Receiver Activates the sleep

function and the duration which the receiver turns off automatically.

?/1 Receiver

Turns the receiver on or

off.

continued

STR-DE685

SECTION 2

DISASSEMBLY

Note : This set can be disassemble according to the following sequence.

SET

2-1. CASE

(Page 8)

2-2. FRONT PANEL SECTION

(Page 9)

2-3. HEADPHONE BOARD,

VIDEO3 BOARD

2-4. BACK PANEL SECTION

(Page 10)

2-5. DIGITAL BOARD

(Page 10)

(Page 9)

2-6. STANDBY BOARD

(Page 11)

2-7. MAIN BOARD

(Page 11)

Note : Follow the disassembly procedure in the numerical order given.

2-1. CASE

two screws (case 3 TP2)

cas

two screws (case 3 TP2)

2-2. FRONT PANEL SECTION

)

CNP791

two screws (BVTP3 x 8)

CNP155

STR-DE685

CNP503

front panel section

2-3. HEADPHONE BOARD, VIDEO3 BOARD

five screws (BVTP3 x 8)

front panel section

CNS4

HEADPHONE board

VIDEO3 board

two screws (BVTP2.6 x 8)

two screws (BVTP2.6 x 8

STR-DE685

)

2-4. BACK PANEL SECTION

CNP901

back panel (DE6)

screw (BVTP3 x 8)

two screws (BVTP3 x 8)

screw (BVTP3 x 8)

two screws (BVTP3 x 8)

screw (BVTP3 x 8)

five screws (BVTP3 x 8)

CNS8

five screws (BVTP3 x 8)

CNP851

2-5. DIGITAL BOARD

CNP852

CNP155

screw (BVTP3 x 8)

CNP5

CNS7

CNP154

CNP6

screw

(BVTP3 x 8)

DIGITAL board

CNS2

CNS4

CNS1

bracket (digital)

screw (BVTP3 x 8

STR-DE685

2-6. STANDBY BOARD

three screws

(BVTP3 x 8)

CNP903

CNP912

CNP902

CNP915

STANDBY board

2-7. MAIN BOARD

two screws (BVTP3 x 6)

screw (BVTP3 x 8)

CNP801

CNP802

MAIN board

two screws (BVTP3 x 6)

two screws (BVTP3 x 8)

STR-DE685

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.

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 po wer ?/1 button to turn on the main power .

1. All segments turn on.

SLEEP

SP.OFF

LSLCR

( ( ( L F E ) ) )

SSR

[MULTI CHANNEL DECODING], [Digital Cinema Sound], SOUND FIELD [A.F.D.], SOUND FIELD [MODE], SOUND FIELD [2CH] and [SET UP] LED turn on.

2. Press the [VIDEO 1] button, confirm display

SLEEP

L F E

SOUND FIELD [A.F.D], SOUND FIELD [MODE], [LEVEL], [SET UP] and [Digital Cinema Sound] LED turn on.

3. Press the [VIDEO 1] button, confirm display

SP.OFF C

( ( ( ) ) )

[MULTI CHANNEL DECODING], SOUND FIELD [2CH], [SURR], [EQ] and [NAME] LED turn on.

DIGITAL

OPT COAX MULTI CH IN

COAX

DIGITAL

OPT MULTI CH IN

PRO LOGIC DTS MPEGSTEREO MONO RDS MEMORY

PRO LOGIC MPEGSTEREO RDS

DTS MONO MEMORY

NEWSEQ

MUTINGINFONEWSTAEQD.RANGE

dB kHz mft.

MHz

MUTINGINFOTAD.RANGE

k m

MHz

dB Hz ft.

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 po wer

?/1 button again. The

message “F ACTORY” appears and the preset contents are reset to the default values.

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.

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 po wer ?/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, Canadian, E, Mexican and Argentina model only

KEY CHECK MODE

* Button check * Procedure:

While depressing the [VIDEO 1] and the [SHIFT] buttons simultaneously, press the po wer ?/1 button to turn on the main power . “REST 39” appears. Every pressing of any button other than the ?/1 , [EQUALIZER] and the [MULTI CH IN] 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.

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], [VIDEO 3], [DVD/LD], [MD/TAPE], [CD/SACD], [TUNER] and [AUX] can be used.)

STR-DE685

SECTION 4

DIAGRAMS

4-1. IC PIN DESCRIPTIONS

• IC1201 CXD9617R (DSP) (DIGITAL Board (1/2))

Pin No. Pin Name I/O Description

1 VSS — Ground 2 XRST I Reset signal input 3 EXTIN I Not used (connected to ground) 4 FS2 I Not used (connected to ground) 5 VDDI I Power supply 6 FS1 I Not used (connected to ground) 7 PLOCK O Internal PLL lock signal output (Not used) 8 VSS — Ground

9 MCLK1 I Clock signal input (13.5 MHz) 10 VDDI I Power supply 11 VSS — Ground 12 MCLK2 O Clock signal output (13.5 MHz) 13 MS I Switching of master/slave operation L : internal clock, H : EXTIN clock is used 14 SCKOUT O Internal system clock signal output 15 LRCKI1 I Not used (open) 16 VDDE I Power supply 17 BCKI1 I Not used (open) 18 SDI1 I Audio IF data input 19 LRCKO O Sampling clock output for digital audio serial data 20 BCKO O Bit clock output terminal for digital audio serial data 21 VSS — Ground 22 KFSIO I/O Audio clock signal (364fs/256fs) input/output

23 to 25 SDO1 to SDO3 O Digital audio serial data output

26 SDO4 O Audio IF serial output (Not used) (open) 27 SPDIF O Not used (open) 28 LRCKI2 I Sampling clock input for audio serial data 29 BCKI2 I Bit clock input terminal for audio serial data 30 SDI2 I Digital audio data input 31 VSS — Ground 32 HACN O Acknowledge signal output for system control 33 HDIN I Serial data input for system control 34 HCLK I Clock input for system control 35 HDOUT O Serial data output for system control 36 HCS I Chip select input for system control 37 SDCLK O Not used (open) 38 CLKEN O Not used (open) 39 RAS O Not used (open) 40 VDDI I Power supply 41 VSS — Ground 42 CAS O Not used (open) 43 DQM/OE0 O Not used (open) 44 CS0 O External memory chip select (SRAM) 45 WE0 O SRAM write enable output 46 VDDE I Power supply 47 WMD1 I Not used (connected to “H”) 48 VSS — Ground 49 WIMD0 I Not used (connected to ground) 50 PAGE2 O Not used (open) 51 VSS — Ground 52 PAGE1 O External memory page switching signal output (Not used) 53 PAGE0 O External memory page switching signal output (Not used)

STR-DE685

Pin No. Pin Name I/O Description

54 BOOT I Not used (connected to ground) 55 BTACT O Not used (open) 56 BST I Boot stop signal input 57 MOD1 I Operation mode signal input (L : 386fs, H : 256fs) 58 MOD0 I Operation mode signal input (L : single chip mode, H : use prohibited) 59 EXLOCK I Lock signal input 60 VDDI I Power supply 61 VSS — Ground

62, 63 A17, A16 O Not used (open)

64 to 66 A15 to A13 O External memory address output (SRAM)

67 GP10 O LRCK0 68 GP9 (DECODE) O DECODE 69 GP8 (AUDIO) I AUDIO 70 VDDI I Power supply 71 VSS — Ground

72 to 75 D15/GP7 to D12/GP4 I/O External memory data input/output (general port)

76 VDDE I Power supply

77 to 80 D11/GP3 to D8/GP0 I/O External memory data input/output (general port)

81 VSS — Ground

82 to 85 A9 to A12 O External memory address output (SRAM)

86 TDO O Not used (open) 87 TMS I Not used (open) 88 XTRST I Not used (open) 89 TCK I Not used (open) 90 TDI I Not used (open) 91 VSS — Ground

92 to 97 A8 to A3 O External memory address output (SRAM)

98, 99 D7, D6 I/O External memory data input/output (SRAM)

100 VDDI I Power supply 101 VSS — Ground

102 to 105 D5 to D2 I/O External memory data input/output (SRAM)

106 VDDE I Power supply 107, 108 D1, D0 I/O External memory data input/output (SRAM) 109, 110 A2, A1 O External memory address output (SRAM)

111 VSS — Ground

112 A0 O External memory address output (SRAM)

113 PM I PLL initialization input terminal 114, 115 SDI3, SDI4 I Not used (open)

116 SYNC I Sync/async selection input (L : sync, H : async)

117 to 119 VSS — Ground

120 VDDI I Power supply

• IC1601 MB90478PF-G-120-BND (SYSTEM CONTROL) (DIGITAL Board (2/2))

Pin No. Pin Name I/O Description

1DATAO I Serial data input for DIR 2 GP9 I Decode signal input 3BST O Boot stop signal output to DSP 4 HCS O Chip select signal output to DSP 5HACNIAcknowledge signal input for DSP 6 XRST O Reset signal output to DSP 7PMOPLL initialization output to DSP 8PDOPower down signal output to CODEC

9 SMUTE O Soft mute signal output to CODEC 10 CDT1 O Control data output to CODEC 11 VSS — Ground 12 SCL O Serial data clock to CODEC 13 CS O Chip select signal output to CODEC 14 DATA O Serial data output to VOL/TUNER 15 CLK O Clock signal output to VOL/TUNER 16 LATCH O Latch signal output to VOL/TUNER 17 SPKB O Speaker B out control signal output 18 HDOUT I Serial data for DSP 19 HDIN O Serial data to DSP 20 HCLK O Clock signal output to DSP 21 F.MUTE O Function input mute signal output 22 AC MUTE O Power amp mute signal output 23 VCC5 I Power supply 24 ANA/DIG I Muting and error port signal input 25 HP DETECT I Headphone detect signal input 26 DCS LED O LED (DCS) driver signal output 27 FLASH2 O Flash programming signal output 28 SP SWITCH/FLASH1 I/O Speaker ON/OFF signal output 29 MCH LED O LED (MULTI CHANNEL DECODING) driver signal output 30 MODE O LED (MODE) driver signal output 31 2CH O LED (2CH) driver signal output 32 AFD O LED (A.F.D.) driver signal output 33 SCL O Clock signal output to EEPROM 34 SDA I/O Serial data to EEPROM 35 AVCC I Power supply 36 AVRH I Not used (connected to “H”) 37 AVSS — Ground

38 to 41 A/D0 to A/D3 I Key signal input (A/D port)

42 VSS — Ground 43 RDS SIGNAL I RDS signal input 44 MODEL I Model detection port 45 VERSION I Version resistor port 46 NC O Not used (connected to ground) 47 NC O Not used (connected to ground) 48 STOP I Input signal when AC off 49 MD0 — Selection of micom operation mode 50 MD1 — Not used (connected to ground) 51 MD2 — Selection of micom operation mode 52 RDS CLOCK I RDS clock signal output (Not used) 53 RDS DATA I RDS data output (Not used) 54 SIRCS I Input data from remote control receiver 55 FUSE DETECT I Power down detect input

STR-DE685

Pin No. Pin Name I/O Description

56 POWER KEY I Detect power switch key 57 JOG (B) I Jog encoder signal input (–) 58 JOG (A) I Jog encoder signal input (+) 59 VOL (B) I Volume encoder signal input (–) 60 VOL (A) I Volume encoder signal input (+) 61 DIN O Serial data output to FL driver 62 CLK O Clock signal output to FL driver 63 FL_STB O Strobe signal output to FL driver 64 CONTROL A1 OUT O Control A1 II signal output 65 CONTROL A1 IN I Control A1 II signal input 66 POWER RELAY O Control power relay driver output 67 PROTECTOR I Detect protector status input 68 HEADPHONE RELAY O Control headphone relay driver output 69 WOOFER RELAY O Control woofer speaker relay driver output 70 REAR RELAY O Control rear speaker relay driver output 71 CENTER RELAY O Control center speaker relay driver output 72 PREOUT/FRONT RELAY O Control front speaker relay driver output 73 TUNED O Tuned signal output to tuner 74 STEREO O Stereo signal output to tuner 75 MUTE O Mute signal output to tuner 76 DO I Serial data input for tuner 77 RSTX I Reset signal input 78 SLATCH O Latch signal to tuner 79 X1A — Not used (open) 80 X0A — Not used (connected to ground) 81 VSS — Ground 82 X0 I Clock signal input (20 MHz) 83 X1 O Clock signal output (20 MHz) 84 VCC3 I Power supply 85 NC I Not used 86 NC O Not used

87 to 90 SW4 to SW1 O Video input select signal output

91 SELECT1 O Optical input select signal output 92 SELECT2 O Optical input select signal output 93 XMODE O Mode signal output to DIR 94 CKSEL1 O Clock select signal output to DIR 95 CLK O Clock signal output to DIR 96 CE O Chip select signal output to DIR 97 DI O Serial data output to DIR 98 DO I Serial data input for DIR 99 ERROR I Error signal input for DIR

100 XSTATE I XSTATE signal input for DIR

4-2. BLOCK DIAGRAM — TUNER/AUDIO SECTION —

STR-DE685

ANTENNA

FM 75Ω

COAXIAL

TM301

FM/AM TUNER PACK

ST-DO/MC-DI ST-DI/MC-DO

FM SIGNAL OUT

RDS DATA

AEP,UK MODEL

SYSTEM

CONTROL

IC1601 (1/4)

RDS SIGNAL

RDS DATA

RDS CLOCK

+10V

L CH

R CH

STEREO

TUNED

MUTE

CLK

RDS INT

J298 (1/2)

-2

AUDIO

FRONT

-6

SUB

WOOFER

-5

CENTER

-3 R

J402 (1/2)

-3 L

-4 R

-1 L

-2 R

-3 L

-4 R

-1 L

-2 R

J404 (1/2)

-5 L

-6 R

-1 L

-2 R

-1 L

-2 R

-3 L

-4 R

J403

J401

R-CH

IN 8

IN 9

IN 10

IN 5

IN 6

IN 7

IN 8

IN 1

IN 2

IN 3

AL IN

ASL IN

ASW IN

AC IN

TU+10V

R-CH

STEREO

TUNED

MUTE

FM OUT

RDS DATA

RDS INT

TU+3.3V

FM OUT

RDS DATA

RDS INT

DO/DI

DATA

CLK

VIDEO 3

CD/SACD

DVD/LD

MD/TAPE

VIDEO 1

VIDEO 2

MULTI

CH IN

AUX

AUDIO

SURROUND

FUNCTION

0/6/12dB

DIR

SELECT

IC201

ATT

0/-6dB

0/6/12dB

R-CH

SLDELOUT

SWSELOUT

LREC 3

LREC 1

ALOUT

AROUT

LSELOUT

CSELOUT

J402 (2/2)

-5

J404 (2/2)

MUTE

-6 L

-3 L

-4

Q365,366

MUTE

Q364

MUTE

OUT MD/TAPE

AUDIO

VIDEO 1

OUT

MUTE

Q363

WOOFER

AMP

IC401

L-IN

R-IN

FL-CH

FR-CH

SL-CH

SR-CH

C-CH

DIGITAL

SECTION

(Page 18)

POWER

SECTION

(Page 21)

J405 SUB

WOOFER

AUDIO

OUT

R-CH

LOUT

ROUT

SLOUT

SROUT

COUT

SWOUT

Q361,362

34 35 5 7

TUNER

VOL IC/

TUNER

LATCH VOL IC

WOOFER RELAY

STEREO

TUNED

MUTE

SLATCH

DATA

CLK

STEREO

TUNED

MUTE

DO/DI

CE CLK

DATA

DIGITAL

SECTION

(Page 18)

DSLIN

DSWIN

DCIN

DLIN

DSL IN

DSW IN

DC IN

DL IN

DATA

CLK

LATCH

MCU

I/F

VCC

+3.3V

+7V

+3.3V

REG

Q471

Q379

INV.

+7V

RELAY

DRIVER

Q560

FC MUTE

RY560

• Signal path : TUNER (FM/AM) : CD (ANALOG)

DIGITAL

SECTION

(Page 18)

: VIDEO (AUDIO)

• R-ch is omitted due to same as L-ch.

17 17

STR-DE685

4-3. BLOCK DIAGRAM — DIGITAL SECTION —

DIGITAL

TUNER/

AUDIO

SECTION

(Page 17)

OPTICAL

MD/TAPE

OUT

COAXIAL

DVD/LD

OPTICAL

VIDEO 2

OPTICAL

CD/SACD

OPTICAL

MD/TAPE

IC1107

J1101

IC1104

IC1106

IC1105

DIN

OUT

CODEC IC1501

DSP

DSI1

SCKOUTMCLKI

GP8

KFSI0

BCKI2

LRCKI2

DSI2

EXLOCK

GP9

68 56

BST

HCS

IC1201

HACN

2 11336 35 33 3432

XRST

SD01

23 6

SD02

24 7

SD03

25 8

GP10

LRCKO

19 5

BCKO

20 4

MCLK1

MCLK2

CSO

WEO

D0-15A0-15

108,107,105 -102,99,

112,110,109,99 - 92,

HDIN

HDOUT

HCLK

X1201

13.5MHz

98,79 - 77,75 - 72

85-82,66 - 64

+2.5V

VDDI

+3.3V

VDDE

SDTI1

SDTI2

SDTI3

LRCK

BCK

SRAM

IC1202

D0-15A0-15

16-13,10 - 7

29 - 32,35 - 38,

1 - 5,18 - 21

24 - 27,42 - 44,

AUDIO

I/F

(2/2)

S.MUTE

3 43 42 41

DAC

CDT1

CCLK

LOUT1

LOUT 3

ROUT 3

LOUT 2

+5V-1

D5V

DLIN

DCIN

DSWIN

DSLIN

• Signal path : TUNER (FM/AM) : CD (ANALOG) : CD (DIGITAL)

• R-ch is omitted due to same as L-ch.

(Page 17)

TUNER/

AUDIO

SECTION

L IN-

L-IN

R-IN

6 7 2 1

R-CH

IC1102

WAVE

SHAPER

OPTICAL SELECTOR

IC1103

6 7 5 4 3

14 2

AMP

IC1502

+5V-2

DIR

IC1101

DIN2

INPUT

DIN1

DIN0

VDD

+3.3V

L IN+

AVDD

DOUT

DATA

DEMODULATOR

Pa,Pb DETECTION LOCK

C bit DETECTION

MICROPROCESSOR

I/F

CLKCEDI

38 37 36 35 33 47 17

ADC

BPSYNC

LPF

DETECTION

CKSEL1

XSTATE

AUDIO

I/F

(1/2)

CKOUT

DATAO

ERROR

XOUT

21 22

X1101

12.288MHz

SDTO

9 18

39 14

AUDIO

24 69

13 22

BCK

14 29

LRCK

15 28

16 30

D1101

34 59

XIN

TUNER/

AUDIO

SECTION

(Page 17)

Q1601

INV.

F.MUTE

ERROR

ANA/DIN

FC MUTE

D1601

95 96 97 98 94 100

CLK

SELECT2

SELECT1

CKSEL1

XSTATE

DIR

DATAO

321 6 74 18 19 205

GP9

BST

HCS

HACN

DSP

XRST

HDIN

HDOUT

HCLK

SYSTEM

CONTROL

IC1601 (2/4)

8 9 10 12 13

SMUTE

CODEC

CDT1

SCL

1818

+ 42 hidden pages

Sony STRDE-685 Service manual

TABLE OF CONTENTS

GENERAL

DISASSEMBLY

2-1. CASE

front panel section

DIGITAL board

STANDBY board

MAIN board

TEST MODE

DIAGRAMS