Sony STRDB-780 Service manual

STR-DA1ES/DB780

SERVICE MANUAL

Ver 1.0 2002.06

Photo: STR-DA1ES

This receiver incorporates Dolby* Digital and Pro Logic Surround and the DTS** Digital Surround System. * 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: (Models of area code U only)

With 8 ohm loads, both channels driven, from 20 – 20,000 Hz; rated 100 watts per channel minimum RMS power, with no more than

0.05 % total harmonic distortion from 250 milliwatts to rated output.

Amplifier section

POWER OUTPUT Models of area code U, CA Rated Power Output at Stereo Mode

(8 ohms 20 Hz – 20 kHz, THD 0.09 %) (4 ohms 20 Hz – 20 kHz, THD 0.09 %)

Reference Power Output

(8 ohms 20 Hz – 20 kHz, THD 0.09 %)

(4 ohms 20 Hz – 20 kHz, THD 0.09 %)

Models of other area codes Rated Power Output at Stereo Mode

(8 ohms 1 kHz, THD 0.7 %)

(4 ohms 1 kHz, THD 0.7 %)

100 W + 100 W 80 W + 80 W

1)

FRONT

:100 W + 100 W

1)

CENTER

: 100 W

1)

SURR

: 100 W + 100 W

1)

FRONT:

80 W + 80 W

1)

CENTER

: 80 W

1)

SURR

: 80 W + 80 W

100 W + 100 W 90 W + 90 W

90 W + 90 W 80 W + 80 W

2)

3)

2)

3)

Reference Power Output

(8 ohms 1 kHz, THD 0.7 %)

(4 ohms 1 kHz, THD 0.7 %)

(8 ohms 20 Hz – 20 kHz, THD 0.09 %)

(4 ohms 20 Hz – 20 kHz, THD 0.09 %)

1) Depending on the sound field settings and the

2) Measured under the following conditions:

3) Measured under the following conditions:

SPECIFICATIONS

source, there may be no sound output.

Area code Power requirements

SP, CEL, CEK 230 V AC, 50 Hz TW 110 V AC, 60 Hz

Area code Power requirements

CN, KR 220 V AC, 50 Hz

2)

FRONT CENTER

1)

SURR FRONT

CENTER

1)

SURR FRONT

CENTER

1)

SURR FRONT

CENTER

1)

SURR

1)

: 100 W + 100 W

1)

: 100 W

: 100 W + 100 W

1)

: 80 W + 80 W

1)

: 80 W

: 80 W + 80 W

1)

: 90 W + 90 W

1)

: 90 W

: 90 W + 90 W

1)

: 75 W + 75 W

1)

: 75 W

: 75 W + 75 W

Canadian Model

AEP Model

Chinese Model

Frequency response

PHONO

CD/SACD, MD/ TAPE, TV/SAT, DVD/LD, VIDEO 1, 2, 3

Inputs (Analog)

PHONO

MULTI CH IN, CD/ SACD, MD/TAPE, DVD/LD, TV/SAT, VIDEO 1, 2, 3

4) INPUT SHORT.

5) Weighted network, input level.

Inputs (Digital)

ASSIGNABLE COAXIAL IN (DVD/ LD CD/SACD)

DVD/LD, TV/SAT, MD/TAPE (Optical)

RIAA equalization curve ±0.5 dB

10 Hz – 100 kHz +0.5/–2 dB (with sound field and equalizer bypassed)

Sensitivity: 2.5 mV Impedance: 50 kilohms

4)

S/N Sensitivity: 150 mV

Impedance: 50 kilohms

4)

S/N (A, 150 mV

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

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

– Continued on next page –

US Model

STR-DA1ES

UK Model

E Model

STR-DB780

: 86 dB (A, 2.5 mV5))

: 100 dB

5)

)

9-874-062-01 Sony Corporation

2002F0500-1 Home Audio Company C 2002.06 Published by Sony Engineering Corporation

FM STEREO FM-AM RECEIVER

STR-DA1ES/DB780

Outputs

MD/TAPE (REC OUT), VIDEO 1, 2 (AUDIO OUT)

FRONT L/R, CENTER, SURROUND L/R, SUB WOOFER (Models of area code U, CA only)

SUB WOOFER (Models of other area codes)

EQ

BASS: 99 Hz~1.0 kHz TREBLE: 1.0 kHz~10 kHz Gain levels: ±10 dB, 0.5 dB step

Voltage: 150 mV Impedance: 10 kilohms

Voltage: 2 V Impedance: 1 kilohms

(21 steps) (23 steps)

FM tuner section

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

Mono: 18.3 dBf, 2.2 µV/75 ohms Stereo:

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

38.3 dBf, 22.5 µV/75 ohms

+0.5/–2 dB

AM tuner section

Tuning range Models of area code U, CA

With 10-kHz tuning scale: 530 – 1,710 kHz With 9-kHz tuning scale: 531 – 1,710 kHz

Models of area code CN, SP, CEL, CEK, TW, KR

With 9-kHz tuning scale: 531 – 1,602 kHz

Antenna Loop antenna Usable sensitivity 50 dB/m (at 1,000 kHz or

S/N 54 dB (at 50 mV/m) Harmonic distortion 0.5 % (50 mV/m,

Selectivity

At 9 kHz: 35 dB At 10 kHz: 40 dB

6) 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 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.

999 kHz)

400 Hz)

6)

Video section

Inputs/Outputs

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

COMPONENT VIDEO (Except for models of area code CEL, CEK):

C: 0.286 Vp-p, 75 ohms

Y: 1 Vp-p, 75 ohms B-Y: 0.7 Vp-p, 75 ohms R-Y: 0.7 Vp-p, 75 ohms

General

Power requirements

Area code Power requirements

U, CA 120 V AC, 60 Hz CEL, CEK 230 V AC, 50/60 Hz CN, SP, KR 220 – 230 V AC, 50/60 Hz TW 110 V AC, 60 Hz

Power consumption

Area code Power consumption

U 280 W CA 330 VA CEL, CEK 290 W CN, SP, KR 290 W TW 290 W (MAX 500W)

Power consumption (during standby mode)

AC outlets

Area code AC outlets

U, CA 1 switched, 120 W/1A MAX SP, TW 1 switched, 100 W MAX

Dimensions 430 × 161 × 400 mm

Mass (Approx.) 12.5 kg Supplied accessories

FM wire antenna (1) AM loop antenna (1) Models of area code U, CA;

Remote commander RM-PP506L (1) R6 (size-AA) batteries (2)

Models of other area codes;

Remote commander RM-U305C (1) R6 (size-AA) batteries (2)

Design and specifications are subject to change without notice.

0.5 W

including projecting parts and controls

2

Notes on chip component replacement

•Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

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 microamperes.). Leakage current can be measured by any one of three methods.

1. A commercial leaka ge tester, such as the Simpson 229 or RCA

WT -540A. Follo w the manufacturers’ instructions to use these instruments.

2. A battery-operated A C milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a V OM

or battery-operated A C voltmeter . The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage 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 A C range are suitable. (See Fig. A)

STR-DA1ES/DB780

To Exposed Metal Parts on Set

1.5 k

0.15 µF

Fig. A. Using an AC voltmeter to check AC leakage.

Ω

Earth Ground

AC voltmeter (0.75 V)

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 SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES 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.

3

STR-DA1ES/DB780

SERVICING NOTES

e

• MODEL IDENTIFICATION

– Back Panel –

PART No.

Model PART No.

DA1ES : US model 4-240-601-0 DB780 : AEP and UK models 4-240-601-1 DB780 : Singapore and

Malaysia models DB780 : Taiwan model 4-240-601-3 DB780 : Korean model 4-240-601-4 DB870 : Chinese model 4-240-601-5 DA1ES : Canadian model 4-240-601-6

4-240-601-2

STR-DA1ES/DB780

SECTION 1

[]

SERVICE POSITION

In checking the DIGITAL board, prepare jig (extension cable J-2501-208-A: 200 mm 21 core).

power cord

Note:

The power cord can be used unplugged from th back panel though, as it is hard to do it, it is easier to prepare other power cord and use it as a jig.

MAIN board

Connect jig (extension cable J-2501-208-A) to the MAIN board (CN806, CN807) and DIGITAL board (CN1102, CN1103).

DIGITAL board

5

STR-DA1ES/DB780

LOCATION OF CONTROLS

– Front Panel –

1 23 4 5

SECTION 2

GENERAL

This section is extracted from instruction manual.

+

–

AUTO DEC qs CINEMA STUDIO EX A/B/C qg Cursor buttons ( CUSTOMIZE wl Digital Cinema Sound indicator

3

DIMMER ed DISPLAY ql Display 4 DOOR OPEN 7 ENTER wg EQ wj EQUALIZER e; FM/AM qf FM MODE es FUNCTION 6 INPUT MODE 9 IR receptor 2 Jog dial wf LEVEL wd

/ ) wh

qs qaqdqfqhqjqk qg

ql w; wa ws wd wf

e; wgwjeaef esed

whwl

wk

MASTER VOLUME 5 MEMORY w; MODE +/– 0 MULTI CH DIRECT 8 NORMAL SURR (;PLII) qh PHONES jack qj PRESET TUNING +/– qd RDS PTY ea (28)

(Models of area code CEL, CEK

only) SET UP ws SLEEP ea

(Except for models of area code

CEL, CEK) SPEAKERS ON/OFF qk SURR wk TUNING +/– wa

(Except for models of area code

CEL, CEK) TUNING/PTY SELECT +/– wa

(Models of area code CEL, CEK VIDEO 3 INPUT jacks ef

67890

+

–

+–

2CH ST qa ?/1 (power) 1

6

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. CASE (414535)

(Page 8)

3-3. S-VIDEO BOARD, VIDEO BOARD

AND TUNER (Page 8)

3-4. VIDEO.AU BOARD

(Page 9)

STR-DA1ES/DB780

SECTION 3

DISASSEMBLY

3-5. DIGITAL BOARD

(Page 9)

3-6. MAIN BOARD

(Page 10)

7

STR-DA1ES/DB780

)

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

3-2. CASE (414535)

3

case (414535)

1

two flat head screws

1

two flat head screws

2

1

two flat head screws

1

two flat head screws

3-3. S-VIDEO BOARD, VIDEO BOARD AND TUNER

1

connector (CN853)

4

S-video board, video board

2

wire (flat type) (11 core) (CN303)

3

two screws (BV/RING) (except DB780: AEP, UK models)

3

six screws (BV/RING)

6

three screws (BV/RING)

5

wire (flat type) (11 core) (except DB780: AEP, UK models wire (flat type) (15 core) (DB780: AEP, UK models)

7

tuner

8

3-4. VIDEO.AU BOARD

)

s

1

wire (flat type) (9 core) (CN201)

2

connector (CN202)

4

video.AU board

STR-DA1ES/DB780

3

two screws (BV/RING)

3

screw (BV/RING) (DB780: AEP, UK models

3-5. DIGITAL BOARD

2

four connectors (CN1109, CNP5, CNP6, CNP9)

3

7

two connectors (CN1102, CN1103)

5

screw

3

screw

4

bracket (digital 3)

1

wire (flat type) (31 core) (CNS4)

Note:When installing the digital board (CNS4), connecting the

wire (flat type) (31core) to the digital board beforehand improves the operatability.

(BVTP3

×

8)

(BVTP3

8

digital board

screw (BVTP3

6

×

8)

×

8)

five screw (BV/RING)

9

STR-DA1ES/DB780

d

3-6. MAIN BOARD

4

screw (BVTP3 × 8)

3

two screws (BVTP3

×

8)

3

two screws (BVTP3

1

three connectors (CN801, CN803, CN805)

1

connector (CN902)

2

×

8)

5

five screws (BV/RING)

10

6

five connectors (CN631, CN431, CN481, CN531, CN581)

8

heat sink

7

ten screws (transistor)

6

connector (CN809)

9

main boar

SECTION 4

TEST MODE

STR-DA1ES/DB780

TUNER FACTORY PRESET MODE

All preset contents are reset to the default setting.

Procedure:

1. While pressing the [DIMMER] and [SET UP] buttons, press the I/1 button to turn on the main power.

2. The message “FACTORY” appears and the pr esent contents are reset to the default values.

TUNER AM STEP CHANGE (9 kHz/10 kHz) MODE (Except STR-DB780: AEP and UK models)

Either the 9 kHz step or 10 kHz step can be selected for the AM channel step.

Procedure:

1. While pressing the [PRESET TUNING +] or [TUNING +] button, press the I/1 button to turn on the main power.

2. Either the message “9 k STEP” or “10 k STEP” appears. Select the desired step.

TUNER AUTOBETICAL TUNING MODE (STR-DB780: AEP and UK models)

Procedure:

1. While pressing the [MEMORY] button, press the I/1 button to turn on the main power.

2. The message “ A UTO-BETICAL SELECT” appears and scans and stores all the FM and FM RDS stations in the broadcast area.

3. When done, the message “FINISH” appears.

SOFTWARE VERSION MODE

When this mode is used, the destination and the software version number are displayed.

Procedure:

1. While pressing the [ENTER] and [AUTO DEC.] buttons, press the I/1 button to turn on the main power.

2. The destination and the software version number appear.

KEY CHECK MODE

When this mode is used, the destination and the software version number are displayed.

Procedure:

1. While pressing the [FM/AM] and [CINEMA STUDIO EX C] buttons, press the I/1 button to turn on the main power.

2. The message “REST 30” appears.

3. Every pressing of any button other than the I/1 button counts down the buttons. The b uttons which are already counted once are not counted again.

4. When all buttons are pressed, the message “REST 00” appears.

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:

1. While pressing the turn on the main power.

2. The message “SF. CLR.” appears and initialization is performed.

[MODE +] button, press the I/1 button to

ALL CLEAR MODE

All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair.

Procedure:

1. While pressing the [AUTO DEC.] and [MODE +] buttons, press the I/1 button or press the I/1 button for more than five seconds to turn on the main power.

2. The message “MEMORY CLEARED !” appears and the memories are reset to the default values.

FLUORESCENT INDICATOR TUBE PATTERN CHECK MODE

All fluorescent segments are tested. When this test is activ ated, all segments turn on at the same time, then each segment turns on one after another.

Procedure:

1. While pressing the [DISPLAY] and [ENTER] buttons, press the I/1 button to turn on the main power.

2. All segments and all LEDs turn on.

3. Turn the [FUNCTION] dial.

4. Half of segments and [Digital Cinema Sound], [AUTO DEC.],

[MODE] LEDs turn on.

5. Turn the [FUNCTION] dial once again.

6. Others half of segments and [2CH ST], [INPUT MODE],

[MULTI CH DIRECT] LEDs turn on.

7. Turn the [FUNCTION] dial once again.

8. All segments and all LEDs turn off.

11

STR-DA1ES/DB780

DSP TEST MODE

Procedure:

1. While pressing the [2CH ST] and [CINEMA STUDIO EX C] buttons, press the I/1 button to turn on the main power or press the

I/1 button to turn on the main power, then press three b uttons of [ENTER], [2CH ST] and [CINEMA STUDIO EX C] simultaneously.

2. The message “DSP TEST” appears, then change into “SWP. XXXX”.

3. Each time the [>] button is pressed, the item is switched in order as follows .

Items Display Remark

SWAP SWP. XXXX NORM, ALL, C SW, SLSR (switching with jog dial) DSP communication DSP OK or DSP ERROR Bass management BM. XXXX AUTO, OFF, 1 to 15 (switching with jog dial)

Main speaker cut off frequency MAIN XXX 80 Hz to 200 Hz (switching with jog dial by 10 Hz) LFE cut off frequency LFE XXX 80 Hz to 200 Hz (switching with jog dial by 10 Hz) Co-ef. Read address RA.12XXX Turn the jog dial to switch the read data address Co-ef. Read data RD.XXXXXX xx Value is read data Co-ef. Write address WA.12XXX Turn the jog dial to switch the write data address Co-ef. Write data WD.XXXXXX xx Turn the jog dial to set the write data SRAM RAMC XXXX OFF, EXE, NG, PASS Total operation time TTL-XXXX xx Longest power on time LNG-XXXX XX Volume I – 50 dB time display V50-XXXX XX Volume I – 40 dB time display V40-XXXX XX Volume I – 30 dB time display V30-XXXX XX Volume I – 20 dB time display V20-XXXX XX Volume I – 10 dB time display V10-XXXX XX Volume I 0 dB time display V00-XXXX XX Protector count value PROT XXX 0 to 255 Fuse open count value FUSE XXX 0 to 255

EEPROM condition E-XXXXX

EEPROM read E-XXX-XX

EEPROM super reset S.RST-YES or S.RST-NO

When DSP ERROR is displayed, press the error

4 large character is hour, 2 small character is minutes

S RST (super reset, first time use EEPROM, test pattern corrupted) FAIL (EEPROM read/write with microprocessor have problem) V CHG (software version change) D CHG (destination/model change) CLEAR (back up data initialize) NORM (normal AC on)

First four hex code is EEPROM address Last two hex code is EEPROM data

When S.RST-YES is displayed, press the EEPROM data

[ENTER] key will clear

[ENTER] key will clear all

12

SECTION 5

DIAGRAMS

5-1. BLOCK DIAGRAM – TUNER/VIDEO INPUT Section –

TU301

TUNER UNIT

ANTENNA

(Page 17)

FM 75Ω

COAXIAL

A

AM

DATA, CLK

FM

AM

3

DATA

ST-DI1CLK

CLK

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

• SIGNAL PATH

: TUNER

: VIDEO IN

ST-DO4CE

2

DATA

LAT

VIDEO 2

VIDEO 1

J299

VIDEO 3

INPUT

S-VIDEO

J850 (1/2)

TV/SAT

S-VIDEO IN

J850 (2/2)

DVD/LD

S-VIDEO IN

J852 (1/2)

VIDEO 1

S-VIDEO IN

8L CH

10R CH

15RDS-DATA 14RDS-INT 13FM SIG OUT

STEREO11MUTE

TUNED

7

6

STEREO

MUTE

TUNED

VIDEO 3

INPUT VIDEO

TV/SAT IN VIDEO

DVD/LD IN VIDEO

OUT VIDEO

IN VIDEO

OUT VIDEO

IN VIDEO

Y

C

Y

C

Y

C

Y

C

R-CH

(DB780: AEP, UK)

DATA LAT TUNED STEREO MUTE

J298 (1/2)

J305

J304

53 RDS DATA

RDS CLOCK

52

RDS SIGNAL

43

76 DO 78 SLATCH 73 TUNED 74 STEREO 75 MUTE

V3

7

TV

3

LD

5

V2. OUT

11

V2. IN

9

V1. OUT

15

V1. IN

13

V3

7

V2. IN

9

TV

3

LD

5

13

V1. IN

V3

7

V2. IN

9

TV

3

LD

5

13

V1. IN

SYSTEM

CONTROLLER

IC1601

(1/5)

VIDEO SELECTOR

Y SWITCH

C SWITCH

IC308

IC852

IC850

STR-DA1ES/DB780

TU L OUT

(EXCEPT DB780: AEP, UK)

J301 (1/2)

Y

COMPONENT

SW4

COMPONENT

SW3

SW4

VIDEO

TV/SAT IN

VIDEO

DVD/LD IN

SW1

90SW1

SW2

89SW2

SW3

88SW3

SW4

87SW4

SW1

SW2

SW3

SW4

6

SW3

4

SW2

10

SW1

14

M. OUT

1

SW5

OUT

SW2 SW3

SW1 SW4

OUT

SW5

OUT

SW2 SW3

SW1 SW4

OUT

SW5

D303

2

D304

V1.

15

10

4

14

6

M.

1

2

D851

V1.

15

10

4

14

6

M.

1

2

D850

PB/CB/B-Y

PR/CR/B-Y

PB/CB/B-Y

PR/CR/B-Y

MONITOR

OUT VIDEO

Y

J852 (2/2)

VIDEO 1

S-VIDEO OUT

C

Y

MONITOR

S-VIDEO OUT

C

Y

J302

J751

VIDEO SELECTOR

IC303

13

12

3

5

1

2

CONTROL

B

A

11 10 9 6

SW3

C

SW4

INH

14

15

4

Q302

VIDEO AMP

IC301

5

3

1

J301(2/2)

9

11

13

Y

PB/CB/B-Y

PR/CR/B-Y

COMPONENT

VIDEO

MONITOR OUT

B

(Page 14)

1313

STR-DA1ES/DB780

5-2. BLOCK DIAGRAM – AUDIO DSP Section –

TU L OUT

B

(Page 13)

PHONO IN

CD/SACD IN

MD/TAPE

VIDEO 2

VIDEO 1

IN

OUT

AUDIO OUT

L

TV/SAT

AUDIO IN

DVD/LD

AUDIO IN

VIDEO 3

INPUT AUDIO

J131

J151

L

J298 (2/2)

J201

J202

PHONO

EQ AMP

IC131

AUDIO SELECTOR

VIDEO SELECTOR

IC151

IC201

27

26

25

24

22

21

19

4 6

2

8

7

CONTROL

DATA

CONTROL

DATA

1415 16

CLK

1415 16

CLK

12

LAT

17

LAT

18 SDI1

28 LRCKI2

29 BCKI2

59 EXLOCK

30 SDI2

GP8

69

S-RAM

D0 – D15 A0 – A15

7 – 10, 13 – 16,

29 – 32, 35 – 38

108, 107, 105 – 102,

99, 98, 80 – 77,

75 – 72

D0 – D15

KFSIO

22

IC1202

AUDIO DIGITAL

SIGNAL PROCESSOR

MCLK112MCLK2

9

X1201

13.6MHz

5 – 1, 44 – 42,

27 – 24, 21 – 18

109, 110, 112,

97 – 92, 82 – 85,

66 – 64

A0 – A15

IC1201

HDIN35HDOUT32HACN56BST

36

33

2CHL

C

(Page 15)

DATA, CLK, LAT

BUFFER

IC1502

CS

WE

617

A/D, D/A CONVERTER

IC1501

LIN+

4445

CSO

WEO

PM

GP9

HCS34HCLK

68

113

23SDO1 24SDO2 25SDO3

19LCKO 20BCKO 14SCKOUT 67GP10

XRST

2

30 29

39

INPUT

LIN–

CIRCUIT

R-CH

L

SL

C

W

CCLK

41

CS17PD

LOUT1 ROUT1 LOUT2 ROUT2 LOUT3 ROUT3

27 28 25 26 23 24

SDTI1

6

SDTI2

7

SDTI3

8

LRCK

5

BCLK

4

MCLKI

AUDIO

INTERFACE

SDTO

9

OUPUT

CIRCUIT

CDT13S.MUTE

42

43

L, SL,

C, W

D

(Page 17)

E

(Page 15)

DIGITAL

(OPTICAL)

DVD/LD

OPTICAL IN

TV/SAT

OPTICAL IN

MD/TAPE

OPTICAL IN

ASSIGNABLE

COAXIAL IN

DVD/LD

CD/SACD

MD/TAPE

OPTICAL OUT

DIGITAL OPTICAL

RECEIVER

IC289

DIGITAL OPTICAL

RECEIVER

IC1104

DIGITAL OPTICAL

RECEIVER

IC1105

DIGITAL OPTICAL

RECEIVER

IC1106

J1101

DIGITAL OPTICAL

TRANSCEIVER

IC1107

DIGITAL SELECTOR

IC1103

IC1102

4

5

6

AB

14 2

B

A

2019

5

2

HACN

GP9

100

7

PM

XSTATE

3

6

BST

XRST

SYSTEM CONTROLLER

IC1601 (2/5)

21

F.MUTE

ANA/DIG

24

D1601

99

ERROR

10

9

12

13CS8

PD

SCL

CDT1

SMUTE

SDA

SCL

X1

82X083

X1601

16MHz

MUTING SWITCH

Q1601

MUTING SWITCH

Q1602

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

• SIGNAL PATH

: TUNER

EEPROM

IC1604

SDA

534

633

SCL

S MUTE

F

(Page 15)

4

18

HCS

A

91 SELECT1

B

92 SELECT2

DI

97 DI

CE

96 CE

CLK

95 CLK

DO

98 DO

XMODE

93 XMODE

CKSEL1

DIGITAL AUDIO INTERFACE RECEIVER

7

DIN0

3

DIN1

4

INPUT

DIN2

CIRCUOT

5

DOUT

2

CKSEK1

47

IC1101

DATA

DEMODULATOR

TIMING

CLOCK

MICON INTERFACE

36 37 38 35

LOCK

DETECT

XMODE

48

DATAO

ERROR

LRCK

BCK

CKOUT

XSTATE

XOUT

XIN

AUDIO

16

34

15 14 13

17

21

22

24

X1101

12.288MHz

94 CKSEL1

HDIN

HDCLK

DATA0

1

HDOUT

: AUDIO IN (ANALOG)

: AUDIO IN (DIGITAL)

CKSEL1

DICECLK

DO

XMODE

1414

5-3. BLOCK DIAGRAM – AUDIO CONTROL Section –

STR-DA1ES/DB780

(Page 14)

MULTI CH IN

C

E

F

2CHL

L, SL, C, W

S MUTE

FRONT

SURROUND

SUB WOOFER

CENTER

J111

L

MUTING

Q451

C

MUTING

Q601

W

MUTING

Q701

SL

MUTING

Q501

MUTING

CONTROL

SWITCH

Q813

27 6.1L

36 6.1SL

40 6.1C

32 6.1SW

36.1SB 2(SW)

28 2CHL

25 D/AL

38 D/AC

30 D/ASW

34

D/ASL

AUDIO SELECTOR

IC111

LOUT

24

37COUT

29SWOUT

33SLOUT

LINE AMP

IC421

LINE AMP

IC621 (2/2)

LINE AMP

IC621 (1/2)

LINE AMP

IC521

VRIN

20

LEVEL SHIFT

CIRCUIT

DATA

16

DATA

VRIN

20

VRIN

9

LEVEL SHIFT

CIRCUIT

DATA

16

DATA

VRIN

20

LEVEL SHIFT

CIRCUIT

DATA

16

CLK17LAT

13

CLK

CLK17LAT

13

CLK

LAT

CLK17LAT

13

LAT

OUT

TRIM

OUT

TRIM

OUT

TRIM

OUT

TRIM

23

26

25

ELECTRICAL

VOLUME

23

26

25

6

5

4

ELECTRICAL

VOLUME

23

26

25

ELECTRICAL

VOLUME

BUFFER

IC402

IC401

BUFFER

IC602 (2/2)

BUFFER

IC602 (1/2)

IC601

BUFFER

IC502

IC501

RY449

RY549

R-CH

SR-CH

RY699RY807

L OUT

C OUT

SL OUT

J449

J699

(Page 16)

G

(Page 16)

H

(Page 16)

J

L

FRONT

R

L

SURROUND

R

CENTER

SUB WOOFER

(DA1ES)

PRE OUT

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

• SIGNAL PATH

: TUNER

: AUDIO IN (ANALOG)

DATA21CLK23LAT

22

DATA

CLK

LAT

DATA

CLK

LAT

RELAY DRIVE

Q826

PRE RY

DATA, CLK, LAT

K

L

M

(Page 16)

(Page 17)

1515

STR-DA1ES/DB780

5-4. BLOCK DIAGRAM – POWER AMP Section –

(Page 15)

L OUT INPUT

G

C OUT

H

6

8

INPUT

PRE

DRIVE

PRE

DRIVE

POWER AMP

IC403

BIAS

CIRCUIT

POWER AMP

IC603

BIAS

CIRCUIT

DRIVE

VCC VCC VEE

13 14 15

DRIVE

VCC VCC VEE

13 14 15

+VEOUT

–VEOUT

+VEOUT

–VEOUT

L

R

CENTER

J849

PHONES

FRONT

SPEAKERS

IMPEDANCE

USE 4-16Ω

R-CH

RY806

RELAY

RELAY DRIVE

Q808

RY448

DRIVE

Q823

RELAY

DRIVE

Q809

R-CH

RY803

TM449

+ –

– +

TM501

+ –

NF

5

2

BIAS

Q431

3

LIMITER SWITCH

Q790

LIMITER SWITCH

Q791.795

NF

9

12

BIAS

Q631

11

BOOSTER

Q402

BOOSTER

Q403

B–

B+

OVER LOAD

DETECTOR

IC803, Q804

BOOSTER

Q602

BOOSTER

Q603

AF POWER

SENSOR

Q434

AF POWER

SENSOR

Q634

CURRENT

DETECT

Q432, 433

CURRENT

DETECT

Q632, 633

(Page 15)

SL OUT INPUT

J

POWER AMP

IC503

6

PRE

DRIVE

BIAS

CIRCUIT

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

• SIGNAL PATH

: TUNER

13 14

VCC VCC

DRIVE

15

VEE

–VEOUT

+VEOUT

SPEAKERS

IMPEDANCE

USE 4-16Ω

AF POWER

NF

5

2

BIAS

Q531

3

BOOSTER

Q502

BOOSTER

Q503

SYSTEM CONTROLLER

IC1601 (3/5)

PROTECTOR

HP DETECT

REAR RELAY

FRONT RELAY

HEADPHONE RELAY

WOOFER RELAY

SENSOR

67

25

70

72

68

71CENTER RELAY

69

Q534

CURRENT

DETECT

Q532, 533

AF POWER

PROTECTOR

Q802, 803,

Q805

RELAY

DRIVE

Q807

RY801

D803

R-CH

+

L

–

SURROUND

–

R

+

PRE RY

K

(Page 15)

1616

5-5. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –

REMOTE

CONTROL

RECEIVER

IC1711

54 SIRCS

SYSTEM CONTROLLER

IC1601 (4/5)

STR-DA1ES/DB780

60VOL (A) 59VOL (B)

ROTARY

ENCODER

RV1601

MASTER VOLUME

(Page 13)

(Page 14)

(Page 15)

J303

CONTROL A1

A

D

L

M

II

DATA, CLK

DATA, CLK, LAT

DATA

CLK

LAT

DATA

CLK

LAT

8

LEVEL SHIFT

3

11

IC804

ROTARY

ENCODER

RV1801

ROTARY

ENCODER

RV1901

FUNCTION

(JOG DIAL)

S1931 – 1937

S1921 – 1928

S1914 – 1918

S1901 – 1909

A/D3

A/D2

A/D1

A/D0

FLASH1

86FUNC (A) 85FUNC (B)

58JOG (A) 57JOG (B)

41

40

39

38

SPEAKERS ON/OFF

28

S1702

S1704

I

/ 1

D1603

I/O BUFFER

Q1607

CLK

DATA

9

10

2

1 13 12

IC805

Q810

9

10

2

1 13 12

5

4

LED DRIVE

Q1601

8

3

LEVEL SHIFT

11

6

D1601

DIGITAL CINEMA SOUND

65 CONTROL A1 IN

64 CONTROL A1 OUT

14 DATA

15 CLK

16 LATCH

46 FUN LAT SW

SP SWITCH/

DCS LED26

D1599

INPUT MODE

D1604

MULTI CH DIRECT

D1603

2CH ST

D1602

AUTO DEC.

D1612 MODE

LED DRIVE

Q1599

LED DRIVE

Q1604

LED DRIVE

Q1603

LED DRIVE

Q1602

LED DRIVE

Q1612

29

30

32

47

INPUT LED

MILTI LED

2CH LED31

AFD LED

MODE LED

56POWER KEY

FLOURESCENT INDICATOR TUBE DRIVER

61DIN

LEVEL SHIFT

62CLK 63FL STB

IC1602

7DIN 8 CLK 9 STB

IC1600

42 – 31

GRID1 – GRID12

42 – 31

SEG1 – SEG12

F1

FL1601

FLUORESCENT

INDICATOR

TUBE

F2

1717

STR-DA1ES/DB780

5-6. BLOCK DIAGRAM – POWER SUPPLY Section –

(EXCEPT DA1ES/DB780: TW)

S901

IMPEDANCE

SELECTOR

8Ω

4Ω

-1

L001

MAIN POWER

TRANSFORMER

(DA1ES/DB780: SP, MY, TW)

CNJ1

AC OUTLET

TUNER +10V

TUNER +3.3V

(DB780: AEP, UK)

A+5V

VIDEO +5V

+3.3V

REGULATOR

IC1905

+5V

REGULATOR

Q824

+10V

REGULATOR

IC1902

+5V

REGULATOR

IC1503

+5V

REGULATOR

IC1906

B+

B–

+15V

– 15V

RECT D914

– 30V

FLUORESCENT INDICATOR TUBE

F906

(DA1ES/DB780: TW)

F905

(EXCEPT DA1ES/DB780: TW)

RELAY +24

+15V

REGULATOR

IC801

– 15V

REGULATOR

IC802

– 30V

REGULATOR

Q903

(FL1601)

RECT

D903 – 906

RECT

D912, 913

F1

F2

(DB780: TW)

-2

F1

(DA1ES/DB780: SP, MY)

F2

FUSE DETECT

SYSTEM

CONTROLLER

IC1601

(5/5)

RSTX

D52

D53

F903

F904

T2

SUB POWER

TRANSFORMER

RY1

RELAY DRIVE

Q51

(AC IN)

• Abbrivation MY : Malaysia model

+5V

D+5V

D+2.5V

D+3.3V

55

STBY +3.3V

77

48STOP

RESET SIGNAL

GENERATOR

IC1602

REGULATOR

IC1903

+2.5V/+3.3V

REGULATOR

IC1901

+3.3V

REGULATOR

IC1904

VIDEO – 5V

D909

– 5V

REGULATOR

Q902

RECT

D54 – 57

AC POWER

DETECT

Q54

RECT D908

SP : Singapore model

66POWER RELAY

TW : Taiwan model

1818

5-7. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

STR-DA1ES/DB780

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from (Conductor Side) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Component Side) the parts face are indicated.

• Indication of transistor

C

B

Q

B

E

Q

CE

Q

CE

These are omitted.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

f

•

• 2 : nonflammable resistor.

• C : panel designation.

• A : B+ Line.

• B : B– Line.

•Voltages and waveforms are dc with respect to ground

•Voltages are taken with a V OM (Input impedance 10 MΩ).

•Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

•Abbreviation

: internal component.

Note:

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

under no-signal (detuned) conditions. no mark : TUNER (): VIDEO 1

Voltage variations may be noted due to normal production tolerances.

F : TUNER J : AUDIO IN (ANALOG) c : AUDIO IN (DIGITAL) E : VIDEO IN

CH : Chinese model CND : Canadian model KR : Korean model MY : Malaysia model SP : Singapore model TW : T aiwan model

4

W or less unless otherwise

Note:

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

19

STR-DA1ES/DB780

d

R

• Circuit Boards Location

POWER board

H.P board

V3-OPT board

VIDEO 3 board

DC 2 board

KEY board

PRE/SPOUT board

S-VIDEO board

VIDEO board

DIGITAL boar

BIAS board

MUTING board

SEC 1 board

DC 1 board

PR 1 board

DISPLAY board

AC board

VIDEO.AU board

TUNE

MAIN board

20

5-8. SCHEMATIC DIAGRAM – DIGITAL (1/3)/V-3 OPT Boards – • See page 44 for Waveforms. • See page 45 for IC Block Diagrams.

TU301

TUNER UNIT

∗

SUPPLIED AS

THE ASSEMBLED

BLOCK

FM 75Ω COAXIAL

ANTENNA

STR-DA1ES/DB780

AM

DIGITAL

(OPTICAL)

DIGITAL

DVD/LD

OPTICAL

TV/SAT

OPTICAL

MD/TAPE

OPTICAL

MD/TAPE

OPTICAL

ASSIGNABLE

COAXIAL IN

DVD/LD

CD/SACD

(Page 31)

DIGITAL OPTICAL RECEIVER

IC289

TORX141PL

IN

OUT

J1101

(1/3)

C1127

C1126

0.1

10

FB1109

CNP9

100

C1114

C1124

0.1

1p

INVERTER

3P

+3.3V

GND

OPTICAL DIN

R1127

100

JR1123

0

R1117

1k

R1119

22k

II1

II2

GND

II3

II4

II5

II6

II7

II8

B1

0.1

C1117

VCC

IC1102

TC7WU04F

R289

100

C289

0.1

IC1104

TORX141L

DIGITAL OPTICAL

RECEIVER

IC1105

TORX141L

DIGITAL OPTICAL

RECEIVER

IC1106

TORX141L

DIGITAL OPTICAL

RECEIVER

IC1107

TOTX141L

DIGITAL OPTICAL

TRANSCEIVER

1P

R1116

75

C1118 1000p

CNS1

C1130

21P

0.1

L

GND

R

GND

W

GND

SB

GND

C

GND

RS

GND

LS

GND

R.O

GND

L.O

GND

T.R

GND

T.L

CN289

3P

3.3V

GND

V3 OPT

R1120

C1120

0.1

R1121

100

C1121

0.1

R1123

100

C1122

0.1

C1123

0.1

R1122

100

C1119

22

50V

R1118

560k

R1521

100k

C1528

22 50V

R1520

100k

C1527

22 50V

R1519

100k

C1526

22 50V

R1518

100k

C1525

22 50V

R1517

100k

C1524

22 50V

R1516

100k

C1523

22 50V

50V

FF2

DIGITAL SELECTOR

D1001 1SS352

-TPH

C1116

470 10V

C1115R1109

47p100

FB1101

TC74ACT153AF

IC1103

R1102

R1111

10k

1k

FF10

R1553

10k

C1504

50V

10

X1101

12.288MHz

FF5

C1129C1111 C1113 1000p0.1 0.1

FF6

R1100

1M

C1110

18p

C1109

18p

R1115 C1112

10k 0.01

FF1

FF4

FF3

0

JR1116

C1106

0.1

R1107

C1107

0.01

C1103

0.1

C1102

47

16V

LIN+

R1501

R1503

330

10k

R1502

10k

5.6k

R1105

4.7k

100

R1104

0.1

0.01

C1101

C1104

33k

R1106

C1105

C1108

47

0.1

16V

FB1104

R1112

100

IC1502 IC1552 4565DD 4565DD

VCC

GND

BUFFER

DIGITAL AUDIO

INTERFACE RECEIVER

IC1101

LC89056W-E

100

R1108

R1114

FB1105

D1101

1SS352-TPH3

FF11

BB11

BB10

BB9

BB8

LIN-

RIN+

R1504

330

R1551

330

R1552

10k

R1505

15k

R1506

68k

C1502

22

50V

II1 II2

R1101

10k

R1124

100

C1131

100p

BB12

C1551C1501

0.00150.0015

VCC

GND

BUFFER

C1503

0.1

(DB780:AEP,UK)

100

R1710

R1711

R1705

K9

K7

K8

K6

K5

K4

K3

K1

K2

C1309

0.1

0

R1364

R1314

R1110

1k

FF8

FF7

R1113

1k

FF9

FB1501

C1513

0.1

C1515

10

50V

C1514

0.1

R1508

100k

FB1102

RIN-

330

R1554

15k

R1555

4.7k

R1557

68k

R1556

C1552

R1507

22

5.6k 50V

C1311 C1310

0.1 0.1

0

JR1103

0

DD1

JR1104

0

11P(EXCEPT DB780:AEP,UK)

15P

(DB780:AEP,UK)

K10

C1221

0.1

BB6

100

R1509

A/D,D/A CONVERTER

II6

II4

II3

CNS7

OGI

IC1905

2933

+3.3V REGULATOR

C1915

47

16V

BB1

DD2

BB2

BB4

BB3

BB5

IC1501 AK4527

II8

II7

II5

LIN-

LIN+

RIN+

RIN-

C1914

47 16V

D1502

1SS367

FB1502

OGI

IC1902

M5F7810L

+10V REGULATOR

C1227C1916

0.10.1

47 16V

0.1

10 50V

D1501

1SS367

C1512

1

-T3

C1510

C1509

C1508

C1507

C1913

0.1

DD5

DD4

DD3

BB7

-T3

A1

A2

A3

A4

A5

A6

(Page 22)

+5V REGULATOR

IC1503

7805

OI

G

C1506

470 16V

C1505

0.1

2

B3

B

A7

(Page 23)

2121

STR-DA1ES/DB780

5-9. SCHEMATIC DIAGRAM – DIGITAL Board (2/3) – • See page 44 for Waveform.

(Page 27) (Page 43) (Page 43)

(Page 21)

CNS8

1

2

3

4

R1692

R1693

1

W

S

V S

V

2

3

1

4

G

47k

H22

47k

H21

C2

D

D N

N

-5V

+5V

G

(2/3)

A1

A2

A3

A4

A5

A6

A7

GG4

GG3

GG2

GG1

FF1

FF2

FF3

FF4

FF5

FF6

FF7

FF8

FF9

FF10

C1

11P

C

D

N

A L

1 G A

CTR

L

CTR

2SC2712-YG

I/O BUFFER

0.01

C1658

R1695

10k

R1675

10k

R1676

1k

R1677

1k

R1678

1k

R1679

1k

R1680

1k

R1681

1k

R1643

1k

R1694

1k

R1644

1k

R1645

1k

R1646

1k

R1647

1k

R1648

1k

R1649

1k

C1229 C1626 C1627

0.1 0.1 10

Q1607

C1918

C1659

CNP5

D

8V

N

A 1 X

P9 G

.G D

7 K

1k

R1674

H C

AT L S

VIDEO SW

DIR

ST B

1k

R1603

2 E E

3 J

100

R1604

3 E E

TX S R

S C H

TUNER

OPTICAL IN

3P

L1901

0

+3.3V REGULATOR

IC1904

2933

IO

G

C1911

0.1

2

5

6

9

4

1

K

1k

R1673

DSP CODEC

100

R1605

4 E E

C C

100

1k

4.7k

R1665

R1664

R1308

R1699

E

Y

O

T

ED

E

D

LA

U

N

R

E

M

T

TU

R

S

T N O

FR

TE

T

N

U

S

C A

M

R

D

S

P

X

H

1k

R1609

R1608

R1607

R1606

1

2

6

5

D

E

D

E

1 1 C C

4.7k

R1698

1k

R1610

5 D D

Y

LA E

R E R T N E C

1 T D C

C1912

470 16V

0

9

1

C

4.7k

R1631

R1638

Y

LA

E

E R

R

R A

FE

E

O

R

O W

SYSTEM CONTROLLER

S

L

S

C S

V

10k

R1622

4 D D

C1619R1691R1304R1305

0.110k47k47k

8 C C

4.7k

R1602

Y

ELA

E R N O H P D

EA H

S C

1k

R1611

3 D D

FB1601

7 C C

1k

4.7k

R1690

R1600

Y

R O

LA

T

E

EC

R

T

R

O

E

R

W

P

O P

IC1601

MB90478PFV-G

-123-BND

ER N

/ TU

IC L

VO

TA A

LK C

D

1k

R1613

R1612

0 1

8

K

1k

R1614

1 C C

GND

C1906

D1905

C1908

D1906

0

10k

∗

0

2.2k

4.7k

C1905

0.1

+3.3V/+2.5V

REGULATOR

IC1901

SI-3001KWF

470 16V

1SR154-400 TE-25

470 16V

1SR154-400 TE-25

C1605

0.1

R1697

(DA1ES)

(DB780:AEP,UK)

(DB780:SP,MY,TW,KR,CH)

(EXCEPT DB780:AEP,UK)

R1684

1k

R1683

R1667

0.01

C1617

CD NC

T

C

S

U

S

RESET SIGNAL

VC

V

O

10k

R1642

J3

JR1688

0

FB1602

C1603

0.1

∗

47k

0.1

R1697

R1632

C1632

C1631

1k

JR1114

R1630

R1629

R1628

R1627

0.1

C1602

R1662

3.3k

R1663

3.3k

R1686

R1685

1k

C1601R1626

0.110k

C1612

10k

C1618

0

1k

GENERATOR

IC1602

S-80929ANM

P-DD6-T2

0.1

C1606

47

0.1

16V

C1635

0.1

R1687

10k

0)

78 B

(D

RT1N141C-T

3 K

H14

C1616

C1615

C1614

C1613

MUTING

SWITCH

Q1601

C1604

0.1

0.022

0.1

C1620

R1635

R1634

10k

47k

R1633

H10

H11

H12

H13

J2

H20

CC6

10k

H16

H17

H18

H19

H14

J4

D1907

1SR154-400

TE-25

+5V REGULATOR

IC1903

2905

IO

G

C1910

470 16V

1

3

2

H

1k

R1639

R1640

R1641

T

K

B

L

T

U

C

1 IN

S

A

1 O

FL

L

A

O

L

V

O

R

TR

R

N

D

T

O

D

N

C

O C

/LE V R

D

FL

IC

DSP

L O

- V T

H

U

IN

O

TC

C

D

N

LA

H

100

1k

R1618

R1617

R1616

R1615

9

8

7

E

R1621

2 C C

0.01

C1611

IN D

K L C H

C1909

0.1

0.01

R1689

10k

C1608

C1609

C1610

8

5

7

4

H

)

(A

(B

L

L(B

G

G O V

JO

VO

JO

ED L

S C D

T

LA L

IG

E T

VO

/D

5

U

A

D

C

N

C

.M

2N

A

V

F

100

R1619

ISS352

D1601

1k

10k

R1655

4

9

C

F F

C

6 H

2 H S

LA F

10k

R1656

VOUT2 VIN

VOUT1

VC

(EXCEPT DB780:AEP,UK)

0

JR1112

JR1113

R1636

9

2

1

H

J

K

T

A

S

Y E

K

ER W

O P

ECT T E

D P H

1 H S

/FLA H

ITC W S

P S

1k

R1623

5 1 H

5 C C

EC

ET

E D S

FU

C IR

S

FUN LAT SW

RDS SIGNAL

D

T LE

PU IN

EEPROM

MODE LED

ED

TI L L U

M

R1657

T A

D S D R

VERSION

MODEL

AFD LED

2CH LED

MD2

CK O

MD1

L

MD0

C S

STOP

D R

VSS

A/D3

A/D2

A/D1

A/D0

AVSS

AVRH

AVCC

SDA

SCL

R1682C1634

100k0.1

10k

-5V

+5V REGULATOR

IC1906

7805

IO

R1672

X1601 16MHz

ISS352

10

D1603

R1671

G

10k

R1668

5.6k

R1601

50V

47

16V

0.01

R1669

C1917

0.1

4.7k

X0A

VSS

X0

X1

VCC3

FUNC(B)

FUNC(A)

SW4

SW3

SW2

SW1

SELECT1

SELECT2

XMODE

CKSEL1

CLK

CE

DI

DO

ERROR

O

TA A D

XSTATE

1k

1 E E

1 1 F F

C3

R1624

R1625

CNP6

V

6P

10k

Q1602

2SC2712

-YG

MUTING

SWITCH

10k

V

8

STOP

P.RY

H1

H2

H3

H4

H5

H6

H9

H10

H11

H12

H13

H14

H7

H8

H15

H16

H17

H18

H19

H20

H21

H22

J1

J2

J3

J4

R1704

R1703

R1658

R1701

-30

R1702

FL1

FL2

CN1109

3P

D GND

CNS4

(Page 32)

31P

F2

-30V

F1

GND

10k

R1650

10k

R1653

R1652

R1651

R1654

10k

100

10k

EEPROM

IC1604

BR24C16

0.1

C1312

K8

K10

CC1

CC2

CC9

CC11

CC10

CC8

CC12

CC5

CC7

CC4

CC6

FB1603

AUTO DEC LED

+3.3V(STBY)

POWER SW.

DCS LED

2CH LED

MULTI LED

INPUT LED

MODE LED

LED LATCH

FUNC(A)

FUNC(B)

FUNC-LAT

REAR-RY

SP-FR-RY

HP-CONT

PROTECTOR

2ND VOL LAT

FUN LAT SW

VOL(+)

VOL(-)

A/D(3)

A/D(2)

A/D(1)

A/D(0)

SP SW.

JOG(+)

JOG(-)

RESET

FLASH2

FLASH1

PRE-RY

2ND-RY

SP-B-RY

S-MUTE

SIRCS

SB-RY

HP-RY

CD RY

GND

+5V

STB

CLK

DIN

(Page 39)

CNS3

7P

MD2

MD0

GND

VDD

DATA

C-RY

(FOR CHECK)

CNS2

21P

CLK

(Page 31)

NC

-15V

+15V

(Page 23)

2222

5-10. SCHEMATIC DIAGRAM – DIGITAL Board (3/3) – • See page 44 for Waveforms.

1 B

(3/3)

(Page 21)

STR-DA1ES/DB780

2

3 B

B

C1230

C1211

C1206

C1208

C1216

100p

C1210C1207

FB1202

C1212

C1231

470

0.1 10V

0

JR1121

0.1

0 2 2 1 P

470 10V

AA4

AA5

AA23

AA34

AA33

AA32

AA31

R1222

R1221

R1220

R1219

R1218

R1217

R1216

R1215

R1214

R1213

R1212

R1203

220

10k

0.1

0.10.1

AA30

AA29

AA28

AA27

AA26

AA25

AA24

AA22

AA21

AA20

EE6

TP1221

TP1222

T

AA19

AA16

AA17

AA18

7

6

9

1

18

1

2

1

P

T

TP

T

C1205 C1204 C1218 C1203

0.1 0.1 100p 0.1

AA9

AA7

AA14

AA12

AA13

AA11

AUDIO DIGITAL

SIGNAL PROCESSOR

IC1201

CXD9617R-K

AA8

AA10

BB12

FB1201

TP1213

TP1212

TP1211

TP1210

TP1209

TP1208

TP1207

TP1206

TP1205

EE1

C1214

0.1

EE2

AA15

AA6

C1220

100p

C1202

0.1

C1201

0.1

EE3

EE7

EE9

EE8

EE4

JR1200

AA19

AA16

AA17

AA18

AA21

AA22

AA20

AA23

100

AA12

AA13

AA14

AA15

AA11

AA27

AA25

AA26

AA24

C1213

AA9

AA8

AA10

AA29

AA30

AA28

0.1

AA4

AA6

AA7

AA5

AA31

AA1

AA3

AA2

S-RAM

IC1202

IS61LV6416-15T

AA34

AA32

AA33

1k

R1204

AA1

AA2

AA3

5

4

1 21 1

12 P

P

T

C1

C2

(Page 22)

C3

2 20

1 P T

R1201

10k

1 0 2 1 P

X1201

13.6MHz

T

EE5

C1219R1210

0.110k

C1209

0.1

4 20

1 FB

BB7

0 10

3

5

0 0 2

12 1

R

FB

BB2

BB6

BB1

BB8

3

4

0

2

1

P

T

0

1

8

6

7

0

2

20

1

R

BB4

BB5

BB3

BB11

BB9

BB10

2323

STR-DA1ES/DB780

5-11. PRINTED WIRING BOARD – DIGITAL Board (Component Side) – • See page 20 for Circuit Boards Location.

• Semiconductor Location

Ref. No. Location

D1001 H-2 D1101 G-3 D1601 J-9 D1603 F-8 D1905 F-11 D1906 F-10 D1907 F-10

IC1101 E-3 IC1102 J-2 IC1103 D-3 IC1201 G-6 IC1202 E-6 IC1501 I-4 IC1502 J-4 IC1552 J-5 IC1601 I-9 IC1602 I-11 IC1604 J-11

Q1601 J-9 Q1602 J-9 Q1607 F-9

1 2 3 4 5 6 7 8 9 10 11 12 13

A

B

DIGITAL BOARD

(COMPONENT SIDE)

C

D

E

IC1103

IC1101

48 37

1

12

13 24

122

36

25

IC1202

E

4423

F

120 91

1

90

G

IC1201

H

11 1

12

44

30

31 60

IC1501

I

J

1

8

IC1102

4

5

22

23 33

5

8

IC1502

34

4

1

IC1552

85

61

81

IC1601

100

5180

50

31

301

(DB780)

IC1602

135

4

5

8

4

1

IC1604

E

K

12

1-685-497-

(12)

2424

5-12. PRINTED WIRING BOARDS – DIGITAL (Conductor Side)/V-3 OPT Boards – • See page 20 for Circuit Boards Location.

STR-DA1ES/DB780

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

ANTENNA

TU301

TUNER UNIT

∗

AM

SUPPLIED AS THE

∗

ASSEMBLED BLOCK

A

V3-OPT BOARD

IC289

DIGITAL

(OPTICAL)

FM 75Ω

COAXIAL

(Page 26)(Page 42)(Page 30)

MAIN BOARD

CN811

B

31

DIGITAL BOARD

(CONDUCTOR SIDE)

D

A

DC 2 BOARD

CN903

F

VIDEO BOARD

CN303

• Semiconductor Location

Ref. No. Location

D1501 I-12 D1502 I-12

IC289 B-2 IC1104 D-14 IC1105 E-14 IC1106 F-14 IC1107 H-14 IC1503 J-10 IC1901 G-6 IC1902 E-6 IC1903 F-4

31

C

1-683-873-

D

E

11

(11)

E

DC 2 BOARD

CN901

(Page 42)

13

1

3

IC1904

7

FOR

CHECK

1

IC1906

31

IC1905

13

IC1902

(DB780: AEP, UK)

3

1

31

18

(DB780: AEP, UK)

13

IC1105

IC1104

3

1

3

1

IC1104

DVD/LD

OPTICAL

IN

IC1105

TV/SAT

OPTICAL

IN

IC1904 D-4 IC1905 D-6 IC1906 D-5

F

G

B

DISPLAY

BOARD

CNS663

(Page 38)

13

135

24

IC1901

EXCEPT

DB780: AEP, UK

IC1106

3

1

3

1

IC1106

MD/TAPE OPTICAL

IN

IC1107

MD/TAPE OPTICAL

OUT

DIGITAL

H

IC1107

IC1903

J1101

ASSIGNABLE

COAXIAL IN

I

DVD/LD

CD/SACD

IC1503

13

J

12

K

L

C

MAIN BOARD

CN806

G

MAIN BOARD

CN807

1-685-497-

(12)

(Page 30) (Page 30)

2525

STR-DA1ES/DB780

5-13. PRINTED WIRING BOARD – VIDEO Board – • See page 20 for Circuit Boards Location.

• Semiconductor Location

Ref. No. Location

D303 C-2 D304 C-2

IC301 C-6 IC303 C-7 IC308 C-3

Q302 C-5

A

B

1 2 3 4 5 6 7 8

J301

COMPONENT VIDEO

VIDEO BOARD

J302

MONITOR

OUT VIDEO

(CHASSIS)

J303

CONTROL

II

A1

J305 J304

TV/SAT

IN VIDEO

(CHASSIS) (CHASSIS) (CHASSIS) (CHASSIS)

DVD/LD

IN VIDEO

OUT VIDEO IN VIDEO

VIDEO 2

OUT VIDEO

VIDEO 1

IN VIDEO

(CHASSIS)

MONITOR OUT

PB/CB/B-Y

PR/CR/R-Y

TV/SAT IN DVD/LD IN

PB/CB/B-Y

PR/CR/R-Y

Y

PB/CB/B-Y

PR/CR/R-Y

Y

DB780:

AEP, UK

EB301

C

D

E

I

S-VIDEO

BOARD

CN851

(Page 28)

F

DIGITAL

BOARD

CNS8

(Page 25)

J

MAIN

BOARD

CN811

(Page 30)

18

(EXCEPT DB780: AEP, UK)

IC308

16 9

11

10

11

10

1

2

E

814

IC301

71

18

IC303

16

9

11

1-684-326-

(11)

2626

Sony STRDB-780 Service manual

TABLE OF CONTENTS

SERVICING NOTES

LOCATION OF CONTROLS

GENERAL

3-1. DISASSEMBLY FLOW

DISASSEMBLY

case (414535)

3-3. S-VIDEO BOARD, VIDEO BOARD AND TUNER

video.AU board

digital board

3-6. MAIN BOARD

TEST MODE

DIAGRAMS

5-1. BLOCK DIAGRAM – TUNER/VIDEO INPUT Section –

5-2. BLOCK DIAGRAM – AUDIO DSP Section –

5-3. BLOCK DIAGRAM – AUDIO CONTROL Section –

5-4. BLOCK DIAGRAM – POWER AMP Section –

5-5. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –

5-6. BLOCK DIAGRAM – POWER SUPPLY Section –

5-7. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

5-8. SCHEMATIC DIAGRAM – DIGITAL (1/3)/V-3 OPT Boards – • See page 44 for Waveforms. • See page 45 for IC Block Diagrams.