Sony Ericsson STR-DE375 specifications IC Block Diagrams, IC1 BU1924 Main Baord

Page 18

STR-DE375

3-11. IC BLOCK DIAGRAMS

IC1

BU1924 (MAIN BAORD)

 

 

 

RCLK

(NC)

XO

XI

VDD2

VSS2

T1

T2

16

15

14

13

12

11

10

9

 

CLOCK

 

 

 

 

TEST

 

 

 

 

 

 

 

 

 

DEFFERENTIAL

 

BIPHASE

PLL

 

PLL 57KHz

 

 

DECODER

 

DECODER

1187.5Hz

 

RDS/ARI

 

 

 

 

 

8TH SWITCHED

 

 

 

 

 

CAPACITOR

 

 

 

 

 

 

FILTER

 

1

2

3

4

5

6

7

8

QUAL

RDATA

VREF

MUX

VDD1

VSS1

VSS3

CMP

IC701, IC702 uPC2581V (MAIN BOARD)

 

IC950 NJM2103 (POWER BOARD)

3-12. IC PIN FUNCTION DESCRIPTION IC103 ∝PD780206GF-092-3BA (DISPLAY BOARD)

Pin No.

Pin Name

I/O

Description

1

VDD +5V

I

Power supply to ∝-com

 

 

 

 

 

 

2

 

S1

O

Control Video IC switching (Not used)

 

 

 

 

 

 

3

 

S2

O

Control Video IC switching (Not used)

 

 

 

 

 

 

4

IC.MUTE

O

Control mute of Video IC (Not used)

 

 

 

 

 

 

5

 

P34

—

Not used

 

 

 

 

 

 

6

 

P33

—

Not used

 

 

 

 

 

 

7

S.DATA (M61501FP)

O

Volume IC data

 

 

 

 

 

 

8

S.CLK (M61501FP)

O

Volume IC clock

 

 

 

 

 

 

9

S.CE (M61501FP)

O

Volume IC enable

 

 

 

 

 

 

10

 

 

 

I

Read ∝-com reset signal

 

RESET

11

 

X2

—

Connection to a crystal resonator

 

 

 

 

 

 

12

 

X1

—

Connection to a crystal resonator

 

 

 

 

 

 

13

 

VSS

—

Programming pow. supply (Cnnected to ground)

 

 

 

 

 

 

14

 

—

—

Not used

 

 

 

 

 

 

15

RDS.DATA.IN

I

Read decoded RDS data

 

 

 

 

 

 

16

VDD +5V

—

Power supply to ∝-com

BIAS CIRCUIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROTECTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REG

 

DRIVE

 

 

PRE

 

 

 

PRE

 

 

DRIVE

 

 

 

 

DRIVE

 

 

 

DRIVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

9

10 11 12

13 14

15

 

MUTE

+VOUT1

–VOUT1

COMP1

NF1

IN1

GND

IN2

NF2

COMP2

–VOUT2

+VOUT2

VCC1 VCC2

VEE

 

IC501 STK350-230 (MAIN BOARD)

 

 

 

 

 

 

 

 

 

 

 

 

 

TR3

R1

 

 

 

 

 

 

 

 

 

TR1

 

 

 

 

 

 

INPUT

1

 

 

 

 

 

 

TR2

 

 

 

 

 

 

NF

2

 

 

 

 

 

 

 

 

 

 

TR4

R2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

-VEOUT

5

 

 

 

 

 

 

 

 

 

 

 

 

R6

+VEOUT

 

 

 

 

 

 

 

 

 

 

 

TR7

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TR6

 

 

 

 

 

 

R4

 

TR5

 

 

 

 

 

VSS

7

 

 

 

 

 

 

R3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D4

D3

GND

8

SUB

 

 

 

 

 

 

 

 

 

 

 

 

D1

D2

 

R5

 

 

R8

R7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R9

 

TR8

 

 

 

 

 

 

CR

1

 

 

 

 

 

8

RESET

 

 

 

 

 

 

–

+

 

VSC

2

VREF

 

 

 

 

7

VSA

 

+

–

 

 

 

 

 

 

OUTC

3

 

 

 

 

 

6

VSB/SESIN

GND

4

 

 

 

 

 

5

V+

 

 

Q

 

 

 

 

 

 

 

 

R

S

+

–

+

–

 

 

 

 

 

 

17

 

 

S.CE (LV1050M)

 

O

Chip enable for ICs

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

Output clock signal

S.CLK(DOLBY.TUNER)

19

 

 

 

 

 

 

 

 

 

 

 

 

 

O

Output data signal

S.DATA(DOLBY.TUNER)

20

 

 

S.CE (TUNER)

O

Chip enable for ICs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

 

 

 

 

 

 

 

 

 

 

 

 

I

Tuner has tuned to a freq.

 

 

 

AUTO-STOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22

 

 

 

 

T.MUTE

O

Muting tuner during scanning

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

 

 

 

 

 

 

 

 

 

 

 

 

I

Tuned freq. has stereo

 

 

 

STEREO-IN

24

 

 

 

 

 

 

 

 

 

 

I

Input tuner freq. data

 

 

 

 

PLL.DATA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

 

 

 

 

 

AVSS

—

Analog ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

 

 

 

 

 

 

 

 

 

 

I

Read remote sensor signal

 

 

 

 

SIRCS

27

 

 

 

 

 

 

P16

—

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

 

 

 

 

SIGNAL

I

Detect RDS signal level

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

 

 

 

 

VERSION

I

Read version setting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

 

 

 

A/D IV

I

Read key push signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31

 

 

 

 

A/D III

I

Read key push signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

 

 

 

 

 

A/D II

I

Read key push signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33

 

 

 

 

 

 

A/D I

I

Read key push signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

34

 

 

AVDD +5.0V

—

Analog Power Supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35

 

 

 

 

AVREF

—

Analog reference voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36

 

 

 

 

 

 

P03

—

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

37

 

 

 

 

 

 

P02

—

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38

 

 

RDS.CLK.IN

I

Read decoded RDS clock

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

39

 

 

 

 

 

 

 

 

 

I

Read signal when AC off

 

 

 

 

 

 

STOP

40

 

 

 

 

 

 

VSS

—

∝-com ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

 

 

 

 

 

P74

—

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

 

 

 

 

 

 

P73

—

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

43

 

 

 

 

 

 

P72

—

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

 

 

 

 

 

 

P71

—

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

 

 

MUTING LED

O

Control MUTING LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46

 

 

 

VDD +5.0V

—

Power supply to ∝-com

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47

 

 

 

 

 

I

Detect Protector Status

 

 

 

 

PROTECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48

 

 

 

POWER-RY

O

Control Power relay

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49

 

 

 

ENCODER

I

Read volume encoder changing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

 

 

ENCODER

I

Read volume encoder changing

1818

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Page 17 Page 19
Contents Specifications STR-DE375STR-DE375 Model IdentificationDiagrams Safety CHECK-OUTTable of Contents LeakageSTR-DE375 Section General Front PanelRear Panel STR-DE375 Section Test Mode STR-DE375 Section Diagrams Circuit Boards LocationFor schematic diagrams Block Diagram Tuner UnitPrinted Wiring Board Main Section IC1Schematic Diagram Main /3 1212 1313 Printed Wiring Board Panel Section LocationSchematic Diagram Panel Section Printed Wiring Board Power Section Schematic Diagram Power Section IC Block Diagrams IC1 BU1924 Main BaordPin No Pin Name Description Section Exploded Views Front Panel SectionChassis Section STR-DE375 Section Display Electrical Parts List SWITCH, Tactile CD ENCODER, Rotary Master Volume SwitchSWITCH, Tactile Video STR-DE375 DisplaySTR-DE375 Display Headphone Main STR-DE375 Main MylarPLUG, Connector 6P EarthTransistor 2SA1115TP-EF Transistor 2SC3576-ACTransistor 2SC2785TP-HFE Transistor 2SC3623ATP-LKEncapsulated Component R616 1-234-182-11 Encapsulated ComponentR666 1-234-182-11 Encapsulated Component Metal Oxide AEP,UK Carbon AEP,UKMetal Oxide CND,E,SP,MY,ARSTR-DE375 Main Power Switch Secondary Stand by STR-DE375 Stand by VOL-SEL STR-DE375 Revision History

STR-DE375 specifications

The Sony Ericsson STR-DE375 is a versatile and innovative audio receiver designed to deliver superior sound quality and an array of features tailored for home theater and audio enthusiasts. Launched in the early 2000s, this receiver was well-regarded for its robust construction, advanced technology, and user-friendly interface.

One of the standout features of the STR-DE375 is its powerful amplification capabilities. With a total power output of 100 watts per channel, this receiver can easily support multiple speakers, providing users with a dynamic and immersive sound experience. The receiver supports a wide range of audio formats, including Dolby Pro Logic, which enhances the surround sound experience, allowing users to enjoy movies and music with incredible clarity and depth.

In terms of connectivity, the STR-DE375 is equipped with multiple audio and video inputs, making it easy to integrate with other home entertainment devices. It features several analog and digital inputs, allowing people to connect DVD players, gaming consoles, and other multimedia devices effortlessly. The inclusion of a 5.1-channel output ensures that users can create a full surround sound setup to fully enjoy their audio and video content.

Additionally, the receiver comes with a built-in tuner that provides users with access to AM/FM radio stations. The digital display makes it simple to tune into favorite stations or browse through available frequencies. This built-in feature adds versatility for users, offering not only high-quality audio playback from external devices but also a robust radio experience.

The STR-DE375 also prioritizes user convenience with a remote control, making it easy to adjust settings, switch inputs, or change volume from across the room. The intuitive layout of controls simplifies navigation, ensuring that even those who are not tech-savvy can enjoy its vast functionality.

Moreover, the receiver is designed with energy efficiency in mind, conforming to standards that reduce power consumption without compromising performance.

In summary, the Sony Ericsson STR-DE375 is a high-quality audio receiver that provides excellent sound performance, ample connectivity options, and user-friendly features. Its blend of technological sophistication and practical design makes it a solid choice for both casual listeners and dedicated audio enthusiasts who seek to enhance their home entertainment experience.
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