Sony STR-KM7500 Schematic

STR-KM7500

SERVICE MANUAL

E Model

Australian Model

Ver. 1.2 2009.10

Canadian Model

• STR-KM7500 is the receiver section in HT-DDW7500/DDW8500.

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. ** Manufactured under license under U.S. Patent #’s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535; 7,003,467; 7,212,872 & other

U.S. and worldwide patents issued & pending. DTS, DTS Digital Surround, ES, and Neo:6 are registered trademarks and the DTS logos, Symbol and DTS 96/24 are trademarks of DTS, Inc. © 1996-2007 DTS, Inc. All Rights Reserved.

This receiver incorporates High-Deﬁ nition Multimedia Interface (HDMITM) technology. HDMI, the HDMI logo and High-Deﬁ nition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.

“x.v.Colour” and “x.v.Colour” logo are trademarks of Sony Corporation.

“BRAVIA” and

are trademarks of Sony Corporation.

Ampliﬁ er section

Power Output Models of area code SAF, AUS, E51, EA, CND Stereo mode output (rated) (6 ohms, 1 kHz, THD 1%) 100 W + 100 W Surround mode output (reference) RMS output FRONT: 185 W per channel

CENTER: 185 W

SURROUND: 185 W per channel

SURROUND BACK: 185 W per channel

1)

Measured under the following conditions:

Area code Power requirements

E51, SAF 240 V AC, 50 Hz

EA 127 V AC, 60Hz

AUS 230 V AC, 50 Hz

CND 120 V AC, 60Hz

(with SS-MSP7500)

(with SS-CNP7500)

(with SS-SRP7500)

1)

2)

1)

SPECIFICATIONS

2)

Reference power output for front, center, sur-

round and surround back speakers. Depending on the sound ﬁ eld settings and the source, there may be no sound output.

Inputs Analog Sensitivity: 800 mV/50

Digital (Coaxial) Impedance: 75 ohms

Outputs (Analog) AUDIO OUT Voltage: 800 mV/10 kohms SUBWOOFER Voltage: 2 V/1 kohm

Tone Gain levels ±6 dB, 1 dB step

Reproduction frequency range: 28 – 20,000 Hz

FM tuner section

Tuning range 87.5 – 108.0 MHz Antenna FM wire antenna Antenna terminals 75 ohms, unbalanced Intermediate frequency

10.7 MHz

kohms

AM tuner section

Tuning range

Area code Tuning scale

10 kHz step 9 kHz step

E51, AUS, CND 530 – 531 –

1,710 kHz 1,710 kHz

SAF 530 – 531 –

1,610 kHz 1,602 kHz

EA 531 –

1,602 kHz

Antenna (aerial) Loop antenna (aerial) Intermediate frequency

450 kHz

Video section

Inputs/Outputs Video: 1 Vp-p, 75 ohms COMPONENT VIDEO:

Y: 1 Vp-p, 75 ohms PB/CB: 0.7 Vp-p, 75 ohms PR/CR: 0.7 Vp-p, 75 ohms 80 MHz HD Pass Through

– Continued on next page –

9-890-524-03

2009J08-1

2009.10

©

MULTI CHANNEL AV RECEIVER

Sony Corporation

Audio & Video Business Group Published by Sony EMCS (Malaysia) PG Tec

STR-KM7500

D

Ver. 1.2

General

Power requirements

Area code Power requirements

AUS 230 V AC, 50 Hz

SAF 230 – 240 V AC, 50/60 Hz

E51 120/220/240 V AC, 50/60 Hz

CND 120 V AC, 60Hz

EA 120 – 127/220/

230 – 240 V AC 50/60Hz

Power output (DIGITAL MEDIA PORT) DC OUT: 5 V, 0.7 A MAX System Control output DC OUT: 5 V, 50mA MAX

Power consumption

• STR-KM7500

Area code Power consumption

AUS, E51, CND, SAF,EA220W

• TA-KMSW500

Area code Power consumption

AUS, E51,SAF, EA 160W

CND 190W

Power consumption (during standby mode)

0.3 W (when “CTRL: HDMI” in HDMI menu is set to “CTRL OFF”)

Design and speciﬁ cations are subject to change without notice.

About area codes

The area code of the receiver you purchased is shown on the lower right portion of the rear panel (see the illustration below).

HDMI

VD IN BD IN OUT

SYSTEM CONTROL

DCSV 50mA MAX

OUT OUT

FRONT

SURROUND

L

BACK

LR

R

SPEAKERS

Area code

Any differences in operation, according to the area code, are clearly indicated in the text, for example, “Models of area code AA only”.

Dimensions (width/height/depth) including projecting parts and controls (Approx.) Receiver 430 × 158 × 342 mm

(17 × 6 1/4 × 13 1/2 in)

Power ampliﬁ er 430 × 158 × 332 mm

(17 × 6 1/4 × 13 1/8 in)

Mass (Approx.) Receiver 8.0 kg (17 lb 11 oz) Power ampliﬁ er 6.6 kg (14 lb 9 oz)

• Abbreviation AUS : Australian model CND : Canadian model EA : Saudi Arabia model E51 : Chilean and Peruvian models SAF : South African model

SAFETY-RELATED COMPONET 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 MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

STR-KM7500

SECTION 1

SERVICING NOTES

1. SERVICING NOTES

.............................................3

2. DISASSEMBLY

2-1. Disassembly Flow .............................................................. 4

2-2. Case .................................................................................... 4

2-3. Back Panel Block ............................................................... 5

2-4. Front Panel Block .............................................................. 5

2-5. Main Block ........................................................................ 6

2-6. Heatsink Block, Main Board ............................................. 6

3. TEST MODE

4. ELECTRICAL CHECK

.......................................................... 7

......................................... 9

5. DIAGRAMS

5-1. Block Diagram — Display Section — .............................11

5-2. Block Diagram — Video Section — ............................... 12

5-3. Block Diagram — HDMI Section — .............................. 13

5-4. Block Diagram — Standby dcdc Section — ................... 14

5-5. Block Diagram — Digital (1/2) Section — ..................... 15

5-6. Block Diagram — Digital (2/2) Section — ..................... 16

5-7. Block Diagram — Connection Section — ...................... 17

5-8. Block Diagram — Main Section — ................................ 18

5-9. Printed Wiring Board — Main Board — ......................... 20

5-10. Schematic Diagram — Main Board (1/4) — ................... 21

5-11. Schematic Diagram — Main Board (2/4) — ................... 22

5-12. Schematic Diagram — Main Board (3/4) — ................... 23

5-13. Schematic Diagram — Main Board (4/4) — ................... 24

5-14. Printed Wiring Board — Video Board — ........................ 25

5-15. Schematic Diagram — Video Board — ........................... 26

5-16. Printed Wiring Board — Video 2 Board —. .................... 27

5-17. Schematic Diagram — Video 2 Board — ........................ 28

5-18. Printed Wiring Board — HDMI Board (1/2) — .............. 29

5-19. Printed Wiring Board — HDMI Board (2/2) — ............. 30

5-20. Schematic Diagram — HDMI Board (1/2) — ................. 31

5-21. Schematic Diagram — HDMI Board (2/2) — ................. 32

5-22. Printed Wiring Board — Standby DCDC Board — ........ 33

5-23. Schematic Diagram — Standby DCDC Board — ........... 34

5-24. Printed Wiring Board — Display Board — ..................... 35

5-25. Schematic Diagram — Display Board — ........................ 36

5-26. Printed Wiring Board — Digital Board (1/2) — ............. 37

5-27. Printed Wiring Board — Digital Board (2/2) — ............. 38

5-28. Schematic Diagram — Digital Board (1/4) — ................ 39

5-29. Schematic Diagram — Digital Board (2/4) — ................ 40

5-30. Schematic Diagram — Digital Board (3/4) — ................ 41

5-31. Schematic Diagram — Digital Board (4/4) — ................ 42

5-32. Printed Wiring Board — Connection Board — ............... 43

5-33. Schematic Diagram — Connection Board — .................. 44

5-34. Printed Wiring Board — Headphone Board — ............... 45

5-35. Schematic Diagram — Headphone Board — .................. 45

5-36. Printed Wiring Board — Power Key Board — ............... 45

5-37. Schematic Diagram — Power Key Board — .................. 45

5-38. Printed Wiring Board — Thermal Sensor Board — ........ 46

5-39. Schematic Diagram — Thermal Sensor Board — ........... 46

5-40. Printed Wiring Board — AC Select Board — ................. 47

5-41. Schematic Diagram — AC Select Board — .................... 47

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.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher than ordinary solder.

Ordinary soldering irons can be used but the iron tip has to be

applied to the solder joint for a slightly longer time.

Soldering irons using a temperature regulator should be set to

about 350 °C. Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to ﬂ ow)

than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may

also be added to ordinary solder.

NOTE OF REPLACING THE IC3511 AND IC3513 ON THE HDMI BOARD

IC3511 and IC3513 on the HDMI board cannot exchange with single. When IC3511 and IC3513 on the HDMI board are damaged, exchange the entire mounted board.

6. EXPLODED VIEWS

6-1. Front Panel Section .......................................................... 61

6-2. Back Panel Section .......................................................... 62

6-3. Main Section .................................................................... 63

7. ELECTRICAL PARTS LIST ......................... 64

3

STR-KM7500

DISASSEMBLY

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

2-1. DISASSEMBLY FLOW

SET

2-2. CASE (Page 4)

2-3. BACK PANEL BLOCK (Page 5)

SECTION 2

2-4. FRONT PANEL BLOCK (Page 5)

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

2-5. MAIN BLOCK (Page 6)

2-6. HEATSINK BLOCK, MAIN BOARD (Page 6)

2-2. CASE



two screws



(BVST4 × 8)

three screws



(BVTP3 × 8)



case



two screws



(BVST4 × 8)

4

2-3. BACK PANEL BLOCK

STR-KM7500

RK CNP923 (2P)

RM CNP904 (4P)

 one screw

(+BVTP 3 × 8)

RL CN905 (5P)

RH CN3509 (5P)

RI CNP922 (2P)

 two screws

(+BVTP 3 × 8)

RM

R CN2102 (9P)

 wire (flat type) (17 core)

(CN3511)  five screws (+BVTP 3 × 8)

 CN2103 (4P)

RB wire (flat type) (9 core)

(CN2204, CN2205)

 four screws (+BVTP 3 × 8)

 five screws (+BVTP 3 × 8)

RE wire (flat type) (21 core) (CN2200)

RG CNP201 (3P)

RT CN2100 (7P) X CONNECTION Board

 one screw

(+BVTP 3 × 8)

 one screw (+BVTP 3 × 8)

2-4. FRONT PANEL BLOCK

 CNP790 (4P)

one lead



front panel section



one lead



FIVE SCREWS



(+BVTP 3 x 8)

 CN558 (6P)

5

STR-KM7500

2-5. MAIN BLOCK

 one screw (+BVTP 3 × 8)

 CN553 (3P)

 CN554 (5P)

 one screw

(+BVTP 3 × 8)

 two screws (+BVTP 3 × 8)

2-6. HEATSINK BLOCK, MAIN BOARD

 Support (G73) Bracket

 two screws

(+BVTP 3 × 8)

 MAIN board section

heatsink block



fourteen sheets





fourty two solders.

fourteen screws



(transistor)

seven transistors



MP1620-OPY-MK (Q554, Q604, Q654, Q704, Q754, Q804, Q854)

Remove the

 two screws (+BVTP 3 × 8)

 INSULATOR board

seven transistors MN2488-OPY-MK



(Q553, Q603, Q653, Q703, Q753, Q803, Q853)

MAIN board



 two screws

(+BVTP 3 × 8)

6

SECTION 3

TEST MODE

STR-KM7500

TUNER AM STEP CHANGE (9 kHz/10 kHz) MODE

The AM tuning interval can be changed over 9 kHz or 10 kHz.

Procedure:

1. Press the [

] button to turn on the main power.

?/1

2. Press TUNER repeatedly to select AM.

3. Press AMP MENU. “1-LEVEL” appears on the display.

4. Press V/v repeatedly to select “4-TUNER”.

5. Press or b to enter the menu.

/

6. Press V

7. Press

v repeatedly to select “AM STEP”.

or b to enter the parameter.

8. Press V/v repeatedly to select the AM tuning scale you want.

FL CHECK MODE

All ﬂ uorescent 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:

1. When pressing the [MULTI STEREO] and [A.F.D.] buttons, press the [

] button to turn on the main power.

?/1

2. All segments and [MULTI STEREO] and [NIGHT MODE] LED turn on.

SP A SP B EQ S-AIR MEM RDS D.RANGE SLEEP FM AM

LFE

SW

L CR

SL

S

SR

SB SBRSBL

ST HDMI COAX OPT

SAT CAT ANALOG

mft.DEX k Hz DTS-ES dB 96/24NE0:6 MHzPLIIx

3. Turn the [INPUT SELECTOR] dial.

4. Test pattern 1 turn on, [MULTI STEREO] LED turn on and [NIGHT MODE] LED turn off.

LFE

SW

SR

SB SBRSBL

EQ MEM D.RANGE FM

ST HDMI COAX OPT SAT CAT ANALOG

mft.DEX

k Hz DTS-ES

dB 96/24NE0:6 MHzPLIIx

5. Turn the [INPUT SELECTOR] dial once again.

6. Test pattern 2 and [MULTI STEREO] LED turn off and [NIGHT MODE] LED turn on .

SP A SP B S-AIR RDS SLEEP AM

L C R

SL

S

ST HDMI COAX OPT SAT CAT ANALOG

mft.DEX

k Hz DTS-ES

dB 96/24NE0:6 MHzPLIIx

KEY CHECK MODE

This mode is used to check the key.

Procedure:

1. While pressing the [MUSIC] and [MOVIE] buttons, press the ] button to turn on the main power.

[

?/1

2. The message “REST 06” appears.

3. Every pressing of any button other than the [

] button counts

?/1

down the buttons. The buttons which are already counted once are not counted again.

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

pears.

SWAP ALL MODE

When this mode is used, output the audio signal of front L/R channel to all channel.

Procedure:

1. While pressing the [MULTI STEREO] and [MOVIE] buttons,

press the [

] button to turn on the main power.

?/1

2. The message “SWP. ALL” appears.

3. After a few seconds, “SWAP” will appear (No change while

displayed).

SHIPMENT 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 [NIGHT MODE] and [MULTI STEREO]

buttons, press the [

] button to turn on the main power.

?/1

2. The message “CLEARING” appears.

DCAC FACTORY TEST MODE

DCAC Factory Test mode have two stages:

1. DCAC DSP Data Line Checking

2. DCAC board Checking

Start Pass Pass

DSP Data Line

Check

Auto Cal Mic

Check

END

Factory Test System Setup

7. Turn the [INPUT SELECTOR] dial once again. All segments and LED turn off.

8. Every turning of the [INPUT SELECTOR] dial turns on each segment one after another on the same order.

S.F. CLEAR MODE

The preset sound ﬁ led 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 [A.F.D.] button, press the [

] button to

?/1

turn on the main power.

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

VERSION CHECK MODE

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

Procedure:

1. While pressing the [NIGHT MODE] and [GAME] buttons, press the [

] button to turn on the main power.

?/1

2. The model, the distination and the software version number appear.

Receiver

DCAC MIC

SPK Front Left

1. When power off : While pressing the [GAME] and [MOVIE] buttons, press the

[

] button to turn on the main power .

?/1

“DCAC FTM” appears. Afterward, press the [NIGHT MODE] to start DCAC factory

test mode.

7

STR-KM7500

1. DCAC DSP Data Line Checking

After press the [TUNING MODE] button, DCAC Factory test mode will start, below display will show: “DCAC x” x = 1, 2, 3, 4 If there is error happen, below display will show:

“ERR SD0x” x = 1 → D1501 or R1530 problem x = 2 → D1502 problem x = 3 → D1503 problem x = 4 → D1504 problem

2. DCAC board Checking

Connect front left speaker of the receiver and AUTO CAL microphone. Turn [MASTER VOLUME] jog, there will be test tone sound output from front left speaker, and the display will change accordingly.

“AD - xxx” xxx = 0 to 255 (depends on loudness of test tone)

Note When the value reaches more than 222, the test tone will muted (for production line checking). Thus, the AD value will drop to 0. To check the AD value again, power off the receiver and re-enter the test mode.

VACS CONTROL TEST MODE

The VACS feature of the ampliﬁ er is turned off purposely.

Procedure:

1. While pressing the [MUSIC] and [A.F.D] buttons, press the ] button to turn on the main power.

[

?/1

2. The message “VACS OFF” appears.

Items Protector Count COUNT XX Total single power on time SXXXHXXM Sound Field SND FLD Input function FUNCTION Input Mode INP MODE Digital Select DIGI IN Stream information STREAM Signal conﬁ guration CO XXXXX Headphones HP XXX Volume VOL XXX Bass Setting BASS XXX Treble Setting TREB XXX Front Level Setting F XXX Center Level Setting CT XXX Surround Left Level Setting SL XXX Surround Right Level Setting SR XXX Surround Back Left Level Setting BL XXX Surround Back Right Level Setting BR XXX Subwoofer Level Setting SW XXX Total power on time TXXXHXXM Muting Status MUTE XXX Power on counter (Rebox test mode) P.W. XXX Protector Type PRT XXXX Temperature when protect TEM XXXC

HISTORY MODE

The state that the set is used is memorized.

*

Procedure:

*

1. While depressing the [GAME] and the [A.F.D.] buttons simul-

taneously, press the [

2. “HISTORY” appears.

3. Each time the [↑] / [↓] buttons on the remote commander is

pressed, the item is switched in order as follows.

] button to turn on the main power.

?/1

PROTECTOR AUTO OFF

Procedure:

*

1. While depressing the [NIGHT MODE] and the [MUSIC] buttons simultaneously, press the power [

?/1

] button to

turn on the main power.

2. “PROTEVER” appears.

8

SECTION 4

ELECTRICAL CHECK

FM AUTO STOP CHECK

signal

generator

Procedure:

1. Turn on the set.

2. Input the following signal from signal generator to FM antenna input directly.

Carrier frequency: A = 87.5 MHz, B = 98 MHz, C = 108 MHz Deviation : 75 kHz Modulation : 1 kHz ANT input : 1 kHz

Use 75 ohm coaxial cable to connect signal generator and the set.

Note:

You cannot use video cable for checking.

Use signal generator whose output impedance is 75 ohm.

3. Set to FM tuner function and scan the input FM signal with automatic scanning.

4. Conﬁ rm that input frequency of A, B and C are detected and automatic scanning stops.

set

STR-KM7500

When the station signal is received in good condition, automatic scanning stops.

9

STR-KM7500

• Circuit Boards Location

SECTION 5

DIAGRAMS

AC SELECT board (E51 only)

STANDBY DCDC board

THERMAL SENSOR board

POWER KEY board

DISPLAY board

HP SUPPORT board

HEADPHONE board

VIDEO 2 board

HDMI board

TUNER (FM/AM)

DIGITAL board

VIDEO board

CONNECTION board

MAIN board

INSULATOR board

10

11 11

STR-KM7500

5-1. BLOCK DIAGRAM — DISPLAY SECTION —

IC102

52

30

RSTB

53

CSB

54

CLKB

55

DIN

56

VDD

57

P1

GR1 - GR11

AD1,AD2,

SG1~SG35

VEE

10

AD_1

AD_2

11

PW_SW

13

DCAC_IN

21

DCAC

1

14

VOG_JOG_B

15

VOG_JOG_A

5

4

FL_RESET(NC)

6

FL_CLK

7

FL_DIN

FL_CS

2

NIGHT MODE (LED)

1

MULTI_ST (LED)

12

SIRCS +3.3V (STANDBY)

+3.3V

+5V

CNS104

CNP102

FL101

VACUUM FLUORESCENT

DISPLAY

T001

8

INPUT_JOG_B

9

INPUT_JOG_A

58

P2

S107

MUSIC

S108

GAME

S109

MULTI STEREO

S101

NIGHT MODE

S102

AFD

S103

MOVIE

S110

RV102

MASTER VOLUME

RV101

INPUT SELECTOR

32,33,34,35,36,37,38,39

,40,41,42

1~31,59~64

4~27,39~51

28,29,30,31,32,33,34,35,36,

37,38

2

53

1

2

3

4

9

7

8

Q001

Q111

D106

DIGITAL SECTION

(1/2)

(Page 15)

A

FL DISPLAY DRIVER

Q110

D105

SIRCS

IC101

16

+5V +3.3V

+5V REG

IC103

IC181

VIDEO BUFFER

6

IC180

MIC AMP

7

5

51

MAIN SECTION

(Page 18)

C

VIDEO SECTION

(Page 12)

F

3

CN173

L-CH(V2)

R-CH(V2)

5

7

VIDEO

9

MIC MONO

10

RCH

D180

D181

J181

VIDEO 2 IN

AUDIO

VIDEO

R

L

V

AUTO CAL MIC

J180

: VIDEO

: AUDIO

SIGNAL PATH

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



1212

STR-KM7500

5-2. BLOCK DIAGRAM — VIDEO SECTION —

PS(V-MUTE)

COMP_S2

COMP_S1

V_SW1

1

3

4

2

V_SW2

V_SW3

V_SW4

DMPORT V

5

7

9

+R3(15V)

VIDEO2 V

11

13

6

CN202

+R3(15V)

-R3(-15V)

1

5

CN200

VIDEO

2

CNP201

IC220

COMPONENT VIDEO SELECT

23

4

2

20

22

PS

CH3 OUT

CH2 OUT

24

CH1 OUT

17

CH3 IN1

8

CH2 IN1

1

CH1 IN1

15

CH3 IN2

10

CH2 IN2

3

CH1 IN2

13

CH3 IN3

12

CH2 IN3

5

CH1 IN3

SW2

SW1

18

V-2

7

V+1

IC210

INPUT SELECT

D210

D211

14

2

10

SW1

SW5

SW2

4

SW3

6

SW4

7

VIN3

9

VIN2

8

V-

16

V+

J200

MONITOR

VIDEO OUT

VIDEO IN

J201

VIDEO1

SAT

DVD

VIDEO OUT

VIDEO IN

J202

J203

MONITOR OUT

P

Y

B/CB

PR/CR

VIDEO 1 IN

P

Y

B/CB

PR/CR

DVD IN

P

Y

B/CB

PR/CR

SAT IN

P

Y

B/CB

PR/CR

1

VOUT1

13

VIN1

15

VOUT2

3

VIN5

5

VIN4

IC201

-15V REG

IC202

+15V REG

CONNECTION

SECTION (Page 17)

I

STANDBY SECTION

(Page 14)

O

DISPLAY SECTION

(Page 11)

F

: VIDEO

SIGNAL PATH

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

13 13

STR-KM7500

5-3. BLOCK DIAGRAM — HDMI SECTION —

A34

B34

A33

B33

A32

B32

A31

B31

HPD3

A24

B24

A23

B23

A22

B22

Z1

A21

B21

HPD2

A14

B14

A13

B13

A12

B12

A11

B11

HPD1

3

DATA2-

4

DATA1+

6

DATA1-

1

DATA2+

9

DATA0-

10

CLOCK+

12

CLOCK-

19

HOT PLUG DET

13

CEC

7

DATA0+

CN3501

3

DATA2-

4

DATA1+

6

DATA1-

1

DATA2+

9

DATA0-

10

CLOCK+

12

CLOCK-

19

HOT PLUG DET

13

CEC

7

DATA0+

CN3502

3

DATA2-

4

DATA1+

6

DATA1-

1

DATA2+

9

DATA0-

10

CLOCK+

12

CLOCK-

19

HOT PLUG DET

13

CEC

7

DATA0+

CN3503

3

232C_OU(VU_TX)

2

RESET

1

CNVSS

5

232C_IN(VU_RX)

CN3510

SWITCHER

IC3503

EEPROM DATA SELECT

IC3521

EEPROM

IC3509

IC3516

POWER CONTROL

IC3533

HPD DETECTION

IC3532

AUDIO BUFFER

HDMI CONTROL

IC3519

HDMI RX

IC3511

HDMI TX

IC3513

58

57

55

54

52

51

49

48

44

77

1Y1

AWP

14

10 7

3435

2-COM SDA

37

1-COM SCL

13

1Y0

12

2Y0

1

SCL_SINK

38

SDA_SINK

39

7

2Y1

5

35

Y1

34

Z2

32

Y2

31

Z3

29

Y3

28

Z4

26

Y4

RXC-

RXC+

RX0-

RX0+

RX1-

RX1+

RX2-

RX2+

25

S3 TMDS_S3

TMDS_S2

TMDS_S1

23

S2

22

S1

21

53

RX_INT INT

20 91

92-96,99-105,

108-111,114-117,121-124

49-58,61-65,

67-70,75-79

VSYNC VSYNC

12

TX2+

CSDA CSDA

28 39

CSCL CSCL

INT

27

TX_INT

43

TX_RST

42

40

CSCL

CSDA

43

17

RESET

42

44

SCK

WS

12 11

SD0

SD1

10 9

SD2

SD3

87

MCLK

SPDIF

A7A6A2A3A4A5A8

A1

Y1Y2Y3Y4Y5Y6Y7

Y8

65

SCK

WS

76 75

SD0

SD1

74 73

SD2

SD3

72 71

MCLK

SPDIF

79 70

873456 92

18 17 16 15 14 13 12 11

RX_RST RESET

19 89

MUTE MUTE

65 61

HPD_SINK RX_HPD1

40 21

xOE TMDS_OEB

42 54

232CIN

30

232COUT

29

RESET

10

CNVSS

XOUT

XIN

CONT

RX

33

TX

41

1

TX_5VPWR

56

PV5_SELB

PV5_SELA55EEPROMSEL1

7

11

13

52

51

76

74

73

71

70

68

67

62

15

14

12

11

9

8

6

5

80

50

51

54

55

58

59

62

63

HSYNC HSYNC

1

128

36

TX2-

35

TX1+

33

TX1-

32

TXO+

30

TXO-

29

TXC+

27

TXC-

26

HPD

33

DSDA

19

DSCL

20

1B1Y

2

+4V REG

IC3528

CTL

1

VCC

2

+4V REG

IC3526

CTL

1

VCC

2

7

DE DE

80

127

QE1-QE23 D1- D23

13

12

11

15

MCK

BCK

LRCK

SD3

SD2

SD1

SD0

SPDIF

9

8

7

MUTE

6

MAINCPU_UA RT_TX

4

MAINCPU_UA RT_RX

3

REG_CTL

3

H_RESET

2

CEC

1

10

CN3511

1,2

+4V

CN3509

3

4

6

1

DATA2+

DATA2-

DATA1+

DATA1-

DATA0+

DATA0-

CLOCK+

CLOCK-

9

10

12

HOT PLUG DET

19

CEC

13

7

CN3504

X3502

10MHz

XTALOUT

XTALIN

84

85

X3501

28.322MHz

Q3504

DATA

BUFFER

FLASH

PROGRAMMING

SAT IN

VIN

IC3501

POWER

CONTROL

IC3504 POWER DETECT

5

3

2Y2

2

6

2Y3

4

8

2Y1

5

10 9

STANDBY SECTION

(Page 14)

K

DIGITAL SECTION

(1/2)

(Page 15)

B

DVD IN

BD IN

OUT

1414

STR-KM7500

5-4. BLOCK DIAGRAM — STANDBY DCDC SECTION —

IC911

+6V REG

IC980

Q920

T924

SAF,AUS

E51,EA

T921

CND

T920

D926

D921

D920

D922

D923

+5V

D924

SUB-T(CEC)

STOP (AC-OFF-DET)

POWER RY

5

7

Q923

6

SW-PROTECTOR

4

CN970

LIVE

1

NEUTRAL

3

CNP922

LIVE

1

NEUTRAL

4

CNP923

R3 AC

1

R3 AC

4

CNP904

D925

F920

F901

D903

F902

RY920

12

+6.3V

+5V

D992

D993

IC990

12

+4V

IC992

+7V REG

IC910

+7V REG

IC991

+5V REG

+6.3V REG

+4V REG

+5V

-R3

1

+R3

5

CNP905

POWER

TRANSFORMER

POWER

TRANSFORMER

AC IN

DIGITAL SECTION

(2/2)

(Page 16)

HDMI SECTION (Page 13)

K

VIDEO SECTION

(2/2)

(Page 12)

O

T921

E51,EA

T920

CND

T924

SAF,AUS

J920 OUT

SYSTEM CONTROL DC5V 50MA MAX

ONLY FOR TA-KMS500 J921 OUT

Q921-Q922

Ver. 1.1

15 15

STR-KM7500

5-5. BLOCK DIAGRAM — DIGITAL (1/2) SECTION —

ERROR

DATA2

DATA3

DATA4

DATA2

DATA3

DATA4

DATA2

DATA3

DATA4

MCK

BCK

LRCK

DATA1

HDMI ERR30

DIR ERROR49

DSP SEL17

MOSI

127

MISO

126

SPICLK

125

SPIDS

122

RESET

121

FLAGO 15

Y

A

B

5

A/B

1

6

1

2

FLAG116

B2

10

B3

13

BCK

B0

3

A2

11

S

X2002

VCC

+5V

+3.3V

25MHz

CLKIN

XTAL

143

DAI_P18SPLRCK

DAI_P12DPSIB

DAI_P19DPBCK

Y0

4

Y3

12

Y1

A0

2

A1

5

A3

14

BCK

8

LRCK

7

DOUTVINL

VINR

9

14

13

Q

5

DAI_P20SPFSCL

94

CK

9

Y2

1

142

10

6

5

3

8

9

12

SPDIF

11

7

CN2202

IC2012

2-CH MUX

IC2006(2/2)

DSP EX3

IC2007

(1/2)

SYSTEM CONTROL

CLOCK SELECTOR

IC2023

ADC

IC2019

EEPROM

IC2014

IC2010

SWITCH

IC2011

CLOCK GENERATOR

IC2006

(1/2)

DSP EX3

8CH DAC

IC2020

+5V REG

IC2001

+5V REG

IC2022

6

H_RESET

H_UART_RX

H_UART_TX

REG_CTL

91

89

HDMI REG CTRL

HDMI_UART_TX

HDMI_UART_RX

HDMI_RESET

HDMI REG CTRL

HDMI_UART_TX

HDMI_UART_RX

HDMI_RESET

50

HDMI_FSRATE

16

CEC IN

88

CEC OUT

28

13

CEC

17

CN2000

14

15

16

90

DAC SW

DAC C

DAC SL

DAC SBL

ADC LIN

15

7

79

89

88

Q2001

- Q2003

Q2000

Q2001 - Q2003

LF VOLTAGE

AMP

Q2000

CEC_OUT

SWITCH

1

8

CKA

Q4B

DAC MUTE

DIR_DATAO

14

MUTE

3

4

86

DALP16 DPDVLRCK

87

DALP17 DPDVBCK

DPSOB DAI_P7

65

7

10

DPSOD DAI_P9

71

DPSOC DAI_P8

870

DPSOA DAI_P6

DAI P11 DPSIA

964

BCK

LRCK

2

MCK

25

23

VO3L

DIN 1

DIN 4

DIN 3

DIN 2

31

63

52

55

78

FLASH1

103

FLASH2

MD2

INT

62

RESET_TRG

83

STOP

102

EEPROM CLK SCL

SDA

EEPROM DATA

DAC LAT

11

M/LAT

32

COM CLK

13

MD/DATA

1

COM DATA

12

MC/CLK

2

CL

40

DI

38

RX4

8

RERR

36

RMCK RDATA

16 21

RLRCK

20

RBCK

17

5

IC2016

WAVE SHAPER

IC2015

DIGITAL AUDIO

I/F RECEIVER

J2000

14

22

VO2L

12

21

VO1L

10

20

19

VO4L _NC

5

3

7

CN2200

TUNING B/NIGHT MODE

20

TUNING A/MULTI ST

21

6

CN2203

3

RESET

FLASH1

FLASH2

MD2

8

6

5

CN2100

4

SW PREOUT RY

C/SW/SUR RY

HP RY

HP DETECT

1

2

3

BRIDGEABLE RY

SBL/SBR/Bi-Amp RY

FRONT A RY

5

6

7

678

HP DETECT

5

6

HP RY

4

71

70

69

72

98

5

IC2013

+5V REG

+6.5V

3

+3.3V (STBY)

IC2002

IC2003 RESET

RESET

IC2004

STOP

B1AB

2

VDD

2

OUT

1

A

2

X

4

80

VOL_JOG_A

7

VOL-JOG(2A)

VOL_JOG_B

8

79

VOL-JOG(2B)

104

INPUT_JOG_A

14

IN ENCODER A

IN ENCODER B

INPUT_JOG_B

13

97

15

FL LAT

18

FL_RESET

7

FL LAT

FL DIN

16

9

FL DATA

FL_CLK

17

8

FL CLK

11

TUNING B/ NIGHT MODE

10

TUNING A/ MULTI ST

PW_SW

9

85

POWER_KEY

DCAC

1

DCAC_IN

115

AD2

11

AD_KEY2

114

AD1

12

AD_KEY1

113

3

FLASH

PROGRAMMING

2

6

DIGITAL SECTION

(2/2)

(Page 16)

U

CONNECTION

SECTION (Page 17)

G

HDMI SECTION (Page 13)

B

MAIN SECTION

(Page 18)

N

DISPLAY SECTION

(Page 11)

A

SAT

IN

(OPTICAL)

4

IC2018

OPTICAL RECIEVER

DVD

IN

(OPTICAL)

2

IC2017

TV IN

(OPTICAL)

FL

16

DSP INT81

DSP RESET64

DSP SPDIDS65

DSP SPICLK75

DSP MISO73

DSP MOSI74

DAI_P13DPSIC

80

DAI_P14DPSID

81

DAI_P15DPSIE

82

: VIDEO

SIGNAL PATH

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

XIN

XOUT

29

28

X2001

12.288MHz

FL RESET

DIGITAL SECTION

(2/2)

(Page 16)

T

DIGITAL SECTION

(2/2)

(Page 16)

P

5

DMPORT_L+

3

DMPORT_L-

10

SIRCS

84

SIRCS_IN

: TUNER

(R-CH)

1616

STR-KM7500

5-6. BLOCK DIAGRAM — DIGITAL (2/2) SECTION —

IC2000

IC2009

J2001

11

13

17

5,6

7

2

CN2102

+6.5V

DMPORT VIDEO

+4V

POWER RY

SUB-T (CEC)

4

5

7

1

14

CN2103

4

3

CLINK_RX CLINK_TX

CLINK DET

POWER RY

101

99,

100

46

SW PROTECT

8

X1A 61

118

THERMAL 2

THERMAL 1

SUB TRANS 37

TUNER DO

TUNER CLK

TUNER DI

TUNER LAT

SD SIGNAL

12

33

13

14

15

IC2007

(2/2)

DMPORT

DC 5V

0.7A MAX

+5V_AIR

120

VACS_CTRL

119

PS(V MUTE)

27

COMP S2

26

COMP S1

25

V SW1

24

V SW2

23

V SW3

22

CN2001

9

VAC S

+7V

10

DIGITAL SECTION

(1/2)

(Page 15)

U

CONNECTION SECTION

(Page 17)

H

STANDBY

DCDC SECTION (Page 14)

K

SYSTEM CONTROL

IC2021

+5V

+9V REG

+7 REG

+3.3V REG

IC2008

2

4

CN2205

1

8

9

7

5

2

6

9

GND

5

VCC +9V

ANTENNA

3

DO/ST/SD

CL

CE

2

1

RCH OUT

SD

AM

6

LCH OUT

8

DI

4

COAXIAL

TN1

7

RCH

DIGITAL SECTION

(1/2)

(Page 15)

T

+3.3V REG

: TUNER

SIGNAL PATH

R-ch is omitted due to same as

7

COMPOSITE-SW4

6

COMPOSITE-SW3

5

COMPOSITE-SW2

4

COMPOSITE-SW1

3

COMPONENT_SW1

2

COMPONENT_SW2

V SW4

21

1

PS(V-MUTE)

PROTECTOR

36

18

PROTECT

VOL IC CLK

35

16

EVOL CLK

VOL IC DATA

34

17

EVOL DATA

LIMITER

117

15

LIMITER

X2000

12.5MHz

X1

X0

58

57

THERMAL SENSOR

4

5

CN250

IC251

2 1 +5V

IC250

21

DIGITAL SECTION

(1/2)

(Page 15)

P

13

DMPORT_L+

11

DMPORT_L-

17 17

STR-KM7500

5-7. BLOCK DIAGRAM — CONNECTION SECTION —

: TUNER

IC800

DMPORT AUDIO AMP

6

7

5

6

1

2

9

7

COMPOSITE-SW4

DMPORT VIDEO

6

COMPOSITE-SW3

5

COMPOSITE-SW2

4

COMPOSITE-SW1

3

COMPONENT_SW1

2

COMPONENT_SW2

1

PS(V-MUTE)

VACS

10

MULTI_CH

16

CLK

18

DATA

17

PROTECT

(R-CH)

5

DMPORT_L+

3

DMPORT_L-

DMPORT_R+

6

DMPORT_R-

4

TUNER R

9

ADL_RIN

19

TUNER L

7

ADL_LIN

20

FL

15

SW

16

14

C

12

SL

10

SBL

18

FR

13

SR

11

SBR

CN800

9

DMPORT VIDEO

7

COMPOSITE-SW4

6

COMPOSITE-SW3

5

COMPOSITE-SW2

4

COMPOSITE-SW1

3

COMPONENT_SW1

2

COMPONENT_SW2

1

13

PS(V-MUTE)

VIDEO2_VIDEO

CN802CN801

(R-CH)

FR

FL

10

SW

11

C

12

SR

13

SL

14

SBR

17

SBL

18

CLK

5

PROTECT

3

DATA

4

MULTHIN

6

VACS

7

L-IN

8

TUNER-L

13

DM-L

18

R-IN

9

TUNER-R

11

DM-R

17

DCAC

16

CN804

DIGITAL SECTION

(2/2)

(Page 16)

H

DIGITAL SECTION

(1/2)

(Page 15)

G

VIDEO SECTION

(Page 12)

I

MAIN SECTION

(Page 18)

D

MAIN SECTION

(Page 18)

CN803

: VIDEO

SIGNAL PATH

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

E

1818

STR-KM7500

5-8. BLOCK DIAGRAM — MAIN SECTION —

6

SW

11

C

12

RC+15V

10

FL

9

FR

14

SBL

13

SBR

L-CH(V2)

R-CH(V2)

18

SL

5

3

+7V

1

-7V

2

17

SR

CN555

CN558

J521

SA-CD/CD/

CD-R

OUT

IN

TV

VIDEO 1

R-CH

+7V

RCH

L-CH(V2)

R-CH(V2)

4

7

RCH

+15V

-7V

SWIN171

CIN170

FLIN1 INL1

72 63

SLIN168

SBLIN166

INL261

RECL1

INL7

INL8

29

51

49

J522

AUDIO IN

SAT

AUDIO IN

BD

R-CH

INL9

INL11

47

43

J523

AUDIO OUT

AUDIO IN

R-CH

RECL2

INL12

27

41

SUBWOOFER

RY441

J525

AUDIO OUT

OUTSW 15

3

VACS

7

MULTI-IN

6

DCAC

16

PROTECT

13

L-IN

11

R-IN

8

TUNER-L

DM-L

18

DM-R

17

DATA

4

CLK

5

9

TUNER-R

CN556

D582

INL5 INR5

59

55 56

ADCL

INL3

76

DA10

INL653

CL11

RY421

RY451

RY422

RY425

RY406

Q441

PROTECTOR

Q585

Q618, Q619

Q616, Q617

Q581-Q584

ELECTRICAL

VOLUME

IC551

IC612,IC613

MN2488-OPY-MK MP1620-OPY-MK

R +/-VE

Q614, Q615

Q612, Q613

IC610,IC611

MN2488-OPY-MK MP1620-OPY-MK

L +/-VE

POWER

AMP

Q626, Q627

Q624, Q625

PRE DRIVER

IC603

POWER

AMP

Q622, Q623

Q620, Q621

PRE DRIVER

IC600

POWER

AMP

Q602, Q603

Q600, Q601

POWER

AMP

Q606, Q607

Q604, Q605

PRE DRIVER

IC601

POWER

AMP

Q610, Q611

Q608, Q609

TB502

SURROUND

TB500

FRONT A

SPEAKERS

R-CH

TB503

SURROUND

BACK/BI AMP

/FRONT B

CENTER

CN552

R-CH

+15V

-15V

+15V

VCC

D407

VEE

RELAY DRIVER

Q421

RELAY DRIVER

Q422

FRONT A RY

SW PREOUT RY

4

5

6

C-SL-SR RY

7

SBR-SBL RLY

3

HR LY

8

BRIDGEABLE RY

1

3

5

HP DETECT

R-CH

L-CH

HP DETECT

CN554

FH003

FH004

5

4

2

1

R1 (UPPER TAP)

R1 (LOWER TAP)

CN551

RELAY DRIVER

Q406

CN553

F401

D401

D402

D403

D404

F402

1

3

R2 AC

IC412

+15V REG

IC413

-15V REG

CNP790

1

4

2

R-CH

HEADPHONE

J790

POWER

TRANSFORMER

POWER

TRANSFORMER

OVERLOAD

DETECT

POWER

AMP

PRE DRIVER

IC602

OVERLOAD

DETECT

POWER

AMP

OVERLOAD

DETECT

MN2488-OPY-MK MP1620-OPY-MK

L +/-VE

IC614,IC615

OVERLOAD

DETECT

MN2488-OPY-MK MP1620-OPY-MK

R +/-VE

IC616,IC617

OVERLOAD

DETECT

MN2488-OPY-MK MP1620-OPY-MK

L +/-VE

IC604,IC605

OVERLOAD

DETECT

MN2488-OPY-MK MP1620-OPY-MK

L +/-VE

IC608,IC609

OVERLOAD

DETECT

MN2488-OPY-MK MP1620-OPY-MK

R +/-VE

IC606,IC607

PROTECTOR

Q451

RELAY DRIVER

Q425

RELAY DRIVER

CONNECTION

SECTION (Page 17)

E

CONNECTION

SECTION (Page 17)

D

DISPLAY SECTION (Page 11)

C

DIGITAL SECTION

(1/2)

(Page 15)

N

OUTSBR 19

OUTC 16

OUTSBL 20

OUTSL 18

OUTSR 17

OUTFL 14

OUTFR 13

: AUDIO

: TUNER

SIGNAL PATH

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

19 19

STR-KM7500

Ver. 1.1

• Waveforms

– DIGITAL Board – – HDMI RE Board –

For Schematic Diagrams.

Note:

• All capacitors are in μF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ω and 1/4 W or less unless otherwise speciﬁ ed.

• f : internal component.

• 2 : nonﬂ ammable resistor.

• 5 : ﬂ usible resistor.

• C : panel designation.

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)

• A : B+ Line.

• B : B– Line.

• Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions.

no mark : TUNER

• Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal production

tolerances.

• Circled numbers refer to waveforms.

• Signal path.

L : VIDEO F : AUDIO E : TUNER

• Abbreviation

AUS : Australian model CND : Canadian model EA : Saudi Arabia model E51 : Chilean and Peruvian models SAF : South African model

For Printed Wiring Boards.

Note:

• X : Parts extracted from the component side.

• Y : Parts extracted from the conductor side.

• f : Internal component.

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

• Indication of transistor.

CEB

These are omitted.

Note: The components identiﬁ ed by mark 0 or dotted

line with mark 0 are critical for safety.

Replace only with part number speciﬁ ed.

Caution:

Pattern face side: (SIDE B) Parts face side: (SIDE A)

Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.

Caution:

Pattern face side: (Conductor Side) Parts face side: (Component Side)

Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.

• Abbreviation AUS : Australian model CND : Canadian model EA : Saudi Arabia model E51 : Chilean and Peruvian models SAF : South African model

C

Q

B

E

These are omitted.

 IC2015 RI (RMCK)

12.35 MHz

1 V/DIV, 50 nsec/DIV

 IC2015 RK (RBCK)

3.086 MHz

1 V/DIV, 20 nsec/DIV

8.A Vp-p

3.4 Vp-p

 IC3511 JG (XTALOUT)

28.322 MHz

1 V/DIV, 20 nsec/DIV

 IC3519 RB (XOUT)

10 MHz

1 V/DIV, 50 nsec/DIV

 IC2015 XL (XOUT)

2.5 Vp-p

3.4 Vp-p

12.288 MHz

1 V/DIV, 50 nsec/DIV

 IC2006 [WD (XTAL)

25 MHz

1 V/DIV, 20 nsec/DIV

 IC2007 UK (X1)

12.5 MHz

1 V/DIV, 50 nsec/DIV

3 Vp-p

1.2 Vp-p

3.1 Vp-p

2020

STR-KM7500

C403

C408

C409

R647

R455

R456

R660

JW409

JW410

R673

RY406

R686

JW413

RY421

RY422

RY423

RY425

D407

R699

RY441

132

IC604

RY451

132

IC605

I

O

IC412

132

IC606

I

O

IC413

132

IC607

132

IC608

132

IC609

132

IC610

132

IC611

132

IC612

132

IC613

132

IC614

132

IC615

132

IC616

132

IC617

CP600

CP601

CP602

CP603

CP604

CP605

CP606

R712

B551

R725

15 3

CN552

1

3

CN553

1

2

17

18

CN555

CN558

1

2

17

18

CN556

JW402

JW414

EB

Q600

EB

Q601

EB

Q604

EB

Q605

EB

Q608

EB

Q609

EB

Q612

EB

Q613

L600

L601

EB

Q616

L602

EB

Q617

L603

L604

L605

L606

EB

Q620

EB

Q621

EB

Q624

EB

Q625

JW401

JW407

JW415

115

IC600

115

IC601

115

IC602

115

IC603

1 83

CN551

F401

F402

CN558

FH001

FH002

FH003

FH004

F403

F404

C654

C659

C664

C669

C674

C679

C684

C603

C608

C609

C614

C616

C621

C622

C627

C631

C442

C636

C637

C642

C644

C649

C650

C655

C660

C665

C670

C675

C680

C692

C538

C539

C540

C541

C558

C571

C583

C581

C582

C413

C415

C404

C605

C611

C618

C624

C633

C639

C646

C651

C652

C656

C657

C661

C662

C666

C667

C671

C672

C676

C677

C681

C682

C607

C613

C620

C626

C635

C641

C648

JW601

JW603

JW602

JW600

JW522

J523

JW569

JW599

JW614

JW428

JW442

JW443

JW449

JW455

JW456

JW461

JW464

JW467

JW484

JW487

JW488

JW500

JW501

JW505

JW515

JW528

JW539

JW544

JW553

JW556

JW563

JW564

JW573

JW574

JW578

JW582

JW584

JW596

JW606

JW609

JW424

JW430

JW628

JW629

JW438

JW444

JW451

JW460

JW465

JW479

JW492

JW494

JW496

JW504

JW509

JW513

JW518

JW524

JW525

JW531

JW532

JW537

JW540

JW542

JW545

JW547

JW551

JW581

JW583

JW598

JW427

JW623

JW466

JW476

JW491

JW502

JW506

JW511

JW530

JW533

JW591

JW592

JW417

JW419

JW420

JW615

JW627

JW437

JW459

JW495

JW514

JW519

JW562

JW568

JW579

JW594

JW426

JW436

JW446

JW457

JW458

JW473

JW499

JW526

JW527

JW541

JW543

JW549

JW560

JW589

JW595

JW423

JW432

JW439

JW475

JW557

JW571

JW580

JW590

JW597

JW607

JW418

JW610

JW611

JW618

JW433

JW630

JW631

JW632

JW634 JW635

JW450

JW454

JW462

JW469

JW470

JW472

JW478

JW480

JS002

JS001

JW481

JW486

JW503

JW510

JW516

JW520

JW548

JW554

JW558

R406

R407

R601

R602

R422

R426

R430

R438

R446

R644

R645

R453

R651

R652

R657

R658

R664

R665

R670

R671

R677

R678

R683

R684

R690

R691

R696

R697

RR500

RR501

RR504

RR505

RR506

RR507

RR508

LR

R703

R704

R709

R710

R716

R717

R722

R723

R729

R730

JW570

JW422

JW523

JW536

JW577

JW538

JW552

JW452

JW529

JW605

JW555

JW485

JW559

JW593

JW471

JW425

JW626

JW561

JW616

JW421

JW534

JW565

JW621

1 5

CN554

JW463

JW587

JW447

JW572

JW588

JW507

JW408

JW622

JW441

JW550

JW617

JW585

JW619

JW586

JW474

JW657

JW576

JW567

JW636

JW517

JW477

JW512

JW468

JW483

JW613

JW440

JW625

JW612

JW535

JW453

JW497

JW624

JW659

JW411

JW482

C406 C407

CONNECTION

BOARD

CN803

(Page 43)

D

VIDEO 2

BOARD

CN173

(Page 27)

C

CONNECTION

BOARD

CN804

(Page 43)

E

DIGITAL

BOARD CN2100

(Page 37)

N

HEADPHONE

BOARD

CNP790

(Page 45)

F

P

JW633

JW620

JW431

JW490

JW489

1-878-785-

14

(14)

MAIN BOARD

L

R

L

R

L

R

L

R

SA-CD/CD/CD-R

IN

INTVAUDIO IN

SAT

L

R

AUDIO IN

BD

L

R

AUDIO IN

L

R

AUDIO OUT

CENTER

SURROUND BACK/

BI - AMP/FRONT B

LR

SURROUND

FRONT A

OUT

J521 J522 J523 J525

TB503

SPEAKERS

TB502

TB500

VIDEO 1

L

R

POWER

TRANSFORMER

T901

(Page 33)

L

R

AUDIO OUT

SUBWOOFER

D582

D401

D402

D403

D404

D412

BE

Q581

BE

Q582

BE

Q583

BE

Q584

BE

Q585

BE

Q602

BE

Q603

BE

Q606

BE

Q607

BE

Q610

BE

Q611

BE

Q614

BE

Q615

BE

Q421

BE

Q422

BE

Q423

BE

Q618

BE

Q619

BE

Q425

B

E

Q622

B

E

Q623

BE

Q626

B

E

Q627

BE

Q441

BE

Q451

BE

Q406

D581

R408

R409

R600

R604

R605

R606

R607

D571

R610

R611

R612

R613

R421

R616

R617

R424

R618

R425

R619

R428

R429

R621

R622

R623

R624

R432

R627

R628

R629

R437

R630

C401

R632

C402

R633

R440

R634

R441

R442

R443

R637

R444

R638

R445

R639

R640

C604

R641

R642

C412

C606

R643

C414

R451

R646

R454

R648

R649

C610

C612

R650

R653

C617

R654

R655

C619

R656

R659

C623

R661

C625

R662

R663

R666

R667

R668

R669

C632

C634

R672

R674

C638

R675

R676

R679

C640

R680

R681

C645

R682

C647

R685

R687

R688

R689

C653

R692

R693

R694

C658

R695

D406

R698

D600

D601

D602

C663

D603

D604

D605

D606

D607

C668

D608

D609

D610

D611

D612

C673

D613

D614

D421

D615

D422

D616

D423

D617

C678

D425

C683

C685

C686

C687

C688

C689

C690

C691

C693

C694

C695

D441

D451

R700

R701

R702

R705

R706

R707

R708

R711

R713

R714

R521

R715

R522

R523

R524

R718

R525

R719

R526

R527

R720

R721

R530

R724

R531

R532

R726

R533

R727

R534

R728

R535

R536

CC500

R731

CC501

R732

R733

R734

R735

R736

R737

R738

R739

R740

R741

R742

R743

R744

R551

R745

R552

R746

R747

R748

R749

R750

R751

CC521

R752

CC522

R753

CC523

R754

CC524

CC525

CC526

CC527

CC528

CC529

CC530

CC531

CC532

CC533

CC534

R571

C535

R572

CC536

R573

C537

R581

R582

R583

R584

R585

R586

C551

C552

C555

C556

C557

CC504

CC506

CC507

CC508

C703

C702

C701

CC505

R755

JR401

JR402

JR403

JR404

JR405

20

21

41

60

40

61

80

1

IC551

R756

(CHASSIS)

C700

C699

C697

C698

1234567891011 141512 13

A

B

C

D

E

F

G

H

I

J

5-9. PRINTED WIRING BOARD — MAIN BOARD — • Refer to page 10 for Circuit Boards Location. : Uses unleaded solder.

Ver. 1.2

21 21

STR-KM7500

1234567891011 141512 13

A

B

C

D

E

F

G

H

I

J

A1

A2

A3

A4

A5 A6 A7

A8 A9

A10 A11

A12

A13

A14

A15

A16 A17 A18 A19 A20

2SA1163L-TE85L

Q603

2SA1163L-TE85L

Q602

L600

123

MN2488-OPY-MK

IC604

SBR +VE

BCE

123

BCE

2SA1115TP-EF

Q600

CP600

R652

10

1.5k

R648

15k

R649

MP1620-OPY-MK

IC605

SBR -VE

R651

4.7

2.2k

R641

47k

R653

220p

C653

560

R643

68k

R650

6.2k

R647

C654

0.022

4.7k

R646

82k

R642

25V

47

C650

47p

C652

C651

47p

2SA1163L-TE85L

Q606

560

R669

500V

47p

C657

C661

47p

2SA1115TP-EF

POWER AMP

Q604

123

MN2488-OPY-MK

IC608

C +VE

BCE

6.2k

R673

R679 47k

2.2k

R667

25V

47

C655

2SA1163L-TE85L

Q611

1.5k

R674

2SA1115TP-EF

Q608

82k

R655

L601

1.5k

R661

4.7k

R659

560

R656

0.022

C664

82k

R668

220p

C658

4.7k

R672

R664

4.7

0.022

C659

2SA1163L-TE85L

Q610

68k

R676

123

MP1620-OPY-MK

IC607

SBL -VE

BCE

25V

47

C660

123

MN2488-OPY-MK

IC606

SBL +VE

BCE

10

R678

R665

10

15k

R662

123

MP1620-OPY-MK

IC609

C -VE

BCE

47k

R666

L602

15k

R675

CP602

Q607

2.2k

R654

CP601

6.2k

R660

220p

C663

68k

R663

47p

C662

R677

4.7

1000V

3p

C613

3p

C620

1k

R610

50V

C609

10

68k

R613

100p

C610

100p

C619

100p

C612

50V

C616

10

1k

R616

100p

C617

68k

R619

68k

R617

MA2J1110GLS0

D602

MA2J1110GLS0

D601

MA2J1110GLS0

D600

100p

C606

68k

R605

1k

R604

3p

C607

100p

C604

R607

68k

50V

C603

10

FOR STK

100

R671

100

R670

100

R645

100

R644

100

R658

100

R657

R606

2.2k

R618

2.2k

R612

500V

C656

47p

JW600

JW601

JW602

JW603

68k

R611

10V

C614

220

10V

C608

220

FOR STK

10V

C621

220

47k

R732

47k

R733

47k

R735

0.01

C685

0.01

C686

0.01

C688

MA2J1110GLS0

D607

MA2J1110GLS0

D608

MA2J1110GLS0

D610

100k

R739

100k

R740

100k

R742

25V

47

C692

MAZ8056GMLS0

D614

15k

R747

18k

R748

MA2J1110GLS0

D617

0.01

C693

15k

R751

100k

R752

*D571

MAZ8030G0LSO

*R571

6.8k

*R573

22k

*C571

220

*R572

0

100p

C618

1000V

50V

100p

C605

1000V

100p

C611

1987654 3215 14 13 12 11 10 19876543215 14 13 12 11 10

STK350-530T-E

PRE DRIVER

IC600

MUTE

-VOUT1

+VOUT1

COMP1

NF1

IN1

GND

IN2

NF2

COMP2

-VOUT2

+VOUT2

VCC

VEE

STK350-530T-E

IC601

MUTE

+VOUT1

-VOUT1

COMP1

NF1

IN1

GND

IN2

NF2

COMP2

-VOUT2

+VOUT2

VCC

VEE

68k

R755

Q601

2SD2144S-TP-V

Q609

Q605

0

*R756

10k

*R746

PROTECTOR

Audio-GND

[SBR]

[SBL]

[C]

VACS

SL_OUT

SBR_OUT

SW/SBSBL_OUT

IC604

IC605

IC608 IC609 IC606 IC607

IC600

IC B/D

PRE DRIVER

IC601

2SD2144S-TP-V

POWER AMP

OVERLOAD DETECT

A1

A2

AA1

AA2

-55.3 55.3 55.3 1.2 -1.1 54.8 -0.3 -0.2

-55.3

55.3

1.2

-1.1

54.8

-0.3

-0.2 -0.2 -0.3 55 -1.1 1.2 0

1.2 55.5 0

1.2

-1.1

1.2

-1.1

1.2

-1.1

0

00

0

-44.70

0

00

0

-44.70

0

00

0

-44.70

1.2 55.5 0 1.2 55.5 0

-1.1 -55.7 0 -1.1 -55.7 0 -1.1 -55.7 0

IC B/D

A25

A26

A27

A28

A29

A30

A31

A32

A33

A34

A35

A36

10V

500V

OVERLOAD DETECT

2SA1163L-TE85L

*1*1*1

*1 ENCAPSULATED COMPONENT

OVERLOAD DETECT

MAIN BOARD (1/4)

MAIN BOARD

(3/4)

(Page 23)

2

MAIN BOARD

(2/4)

(Page 22)

1

5-10. SCHEMATIC DIAGRAM — MAIN BOARD (1/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.

Ver. 1.2

2222

STR-KM7500

1234567891011 141512 13

A

B

C

D

E

F

G

H

I

J

2SA1163L-TE85L

Q614

560

R708

0.22

CP605

123

MN2488-OPY-MK

IC614

SL +VE

BCE

47k

R718

0.22

CP606

C671

47p

2SA1163L-TE85L

Q627

2SA1115TP-EF

Q612

123

MN2488-OPY-MK

IC612

R +VE

BCE

25V

47

C675

4.7k

R711

R705 47k

82k

R720

2SA1115TP-EF

Q620

68k

R640

2SA1163L-TE85L

Q619

1.5k

R700

4.7k

R724

1.5k

R687

100p

C640

500V

C666

47p

560

R682

123

MP1620-OPY-MK

IC615

SL -VE

BCE

220p

C668

4.7k

R698

1000V

3p

C641

25V

47

C680

68k

R702

68k

R624

1.5k

R713

25V

47

C670

123

MN2488-OPY-MK

IC610

L +VE

BCE

10

R704

10

R691

L606

15k

R714

1000V

3p

C648

123

MP1620-OPY-MK

IC613

R -VE

BCE

2SA1163L-TE85L

Q615

2.2k

R680

500V

C681

47p

1.5k

R726

100p

C625

220p

C673

100p

C634

R703

4.7

560

R695

500V

47p

C667

2SA1163L-TE85L

Q622

68k

R630

100p

C647

2.2k

R719

0.022

C684

500V

47p

C677

2SA1163L-TE85L

Q623

2.2k

R693

68k

R634

L605

123

MP1620-OPY-MK

IC617

SR -VE

BCE

220p

C683

1000V

3p

C626

25V

47

C665

68k

R715

2SA1115TP-EF

Q624

2SA1115TP-EF

Q616

10

R730

82k

R681

L603

2.2k

R706

4.7k

R685

10

R717

500V

C676

47p

0.022

C674

2SA1163L-TE85L

Q626

82k

R694

560

R721

R690

4.7

0.022

C669

2SA1163L-TE85L

OVERLOAD DETECT

Q618

123

MP1620-OPY-MK

IC611

L -VE

BCE

6.2k

R725

500V

47p

C682

15k

R727

68k

R728

47k

R731

15k

R688

L604

R729

4.7

6.2k

R712

15k

R701

0.22

CP604

0.22

CP603

6.2k

R686

82k

R707

1000V

3p

C635

123

MN2488-OPY-MK

IC616

SR +VE

BCE

0.022

C679

68k

R689

R716

4.7

220p

C678

47p

C672

39k

R584

2SC3052EF-T1-LEF

Q584

50V

10

C583

2SA1163L-TE85L

Q583

10k

R585

6.8k

R583

2SA1163L-TE85L

PROTECTOR

Q581

2SC3052EF-T1-LEF

Q582

1k

R586

1k

R627

1k

R621

50V

C631

10

100p

C632

100p

C623

50V

C622

10

68k

R628

68k

R622

1k

R637

1k

R632

50V

C644

10

100p

C645

100p

C638

50V

C637

10

68k

R638

68k

R600

R692 47k

MA2J1110GLS0

D606

MA2J1110GLS0

D605

MA2J1110GLS0

D604

MA2J1110GLS0

D603

100

R697

100

R722

100

R683

100

R709

100

R710

100

R723

100

R684

100

R696

2.2k

R639

2.2k

R623

2.2k

R633

2.2k

R629

6.2k

R699

10V

C627

220

10V

C636

220

10V

C649

220

10V

C642

220

10V

330

C581

10V

330

C582

20k

R581

39k

R582

2SC2713G-TE85L

Q585

47k

R734

10k

R736

47k

R737

47k

R738

0.01

C687

0.01

C689

0.01

C690

0.01

C691

MA2J1110GLS0

D609

MA2J1110GLS0

D611

MA2J1110GLS0

D612

MA2J1110GLS0

D613

100k

R741

100k

R743

100k

R744

100k

R745

MA2J1110GLS0

D615

MA2J1110GLS0

D616

15k

R749

15k

R750

100k

R753

100k

R754

MC2838-T112-1

D581

MC2838-T112-1

D582

0.1

C694

0.1

C695

1000V

100p

C633

1000V

100p

C624

1000V

100p

C646

1000V

100p

C639

1987654 3215 14 13 12 11 10

STK350-530T-E

IC602

MUTE

+VOUT1

-VOUT1

COMP1

NF1

IN1

GND

IN2

NF2

COMP2

-VOUT2

+VOUT2

VCC

VEE

19876543215 14 13 12 11 10

STK350-530T-E

IC603

MUTE

+VOUT1

-VOUT1

COMP1

NF1

IN1

GND

IN2

NF2

COMP2

-VOUT2

+VOUT2

VCC

VEE

0.47

R601

0.47

R602

Q617

Q613

Q625

Q621

C_OUT

SR_OUT

SL_OUT

FL_OUT

FR_OUT

[FL][FR]

[SR]

[SL]

SBR_OUT

SW/SBSBL_OUT

C_OUT

SR_OUT

SL_OUT FL_OUT

FR_OUT

SBR_OUT

SW/SBSBL_OUT

C_OUT

SR_OUT

FL_OUT

FR_OUT

IC612 IC613 IC610 IC611 IC616 IC617 IC614 IC615

PRE DRIVER

IC602

PRE DRIVER

IC603

2SD2144S-TP-V

POWER AMP

OVERLOAD DETECT

A1

A2

AA4AA3

-55.3

55.3

1.2

-1.1

54.8

-0.3

-0.2 -0.2 -0.3 55 -1.1 1.2 0

-55.3

55.3

1.2

-1.1

54.8

-0.3

-0.2 -0.2 -0.3 55 -1.1 1.2 0

1.2

-1.1

1.2

-1.1

1.2

-1.1

1.2

-1.1

3.3

-47.1

3.3

-48.4

-55.9

2.9

-47.1

0

00

0

-44.70

0

00

0

-44.70

0

00

0

-44.70

0

00

0

-44.70

1.2 55.5 0

-1.1 -55.7 0

1.2 55.5 0 1.2 55.5 0 1.2 55.5 0

-1.1 -55.7 0 -1.1 -55.7 0 -1.1 -55.7 0

IC B/D

A1

A2

A3

A4

A5 A6 A7

A8 A9

A10 A11 A12

A13 A14 A15 A16

A17 A18 A19 A20

A36

A37

A38

A39

A40

A41

A42

A43

A44

A45

A46

A47

IC B/D

MAIN BOARD (2/4)

MAIN BOARD

(1/4)

(Page 21)

1

MAIN BOARD

(4/4)

(Page 24)

3

5-11. SCHEMATIC DIAGRAM — MAIN BOARD (2/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.

Ver. 1.2

23 23

STR-KM7500

1234567891011 141512 13

A

B

C

D

E

F

G

H

I

J

1

2

3

4

5

6

*CN558

6P

+7V

-7V

GND

L-CH (V2)

V2-GND

R-CH (V2)

SUBWOOFER

AUDIO

OUT

L

R

G

*J525

2P

1 234

6P

L

R

TV

AUDIO

IN

VIDEO 1

L

R

OUT IN IN

L

R

SAT

AUDIO

IN

L

R

BD

AUDIO

OUT

L

R

AUDIO

IN

L

R

L

*CC522

100p

*CC529

100p

C539

4.7

R530

1k

C541

4.7

R522

1k

R536

1k

R527

1k

*CC521

100p

*CC528

100p

*CC527

100p

R521

1k

R531

1k

L2

R2

G

R1

L1

R3

L3

J521

4P

J522

4P

J523

*CC534

100p

R532

1k

*CC523

100p

*CC530

100p

R523

1k

R533

1k

*CC524

100p

*CC531

100p

R524

1k

*CC536

2200p

A_GND

R525

1k

C540

4.7

50V

R534

1k

R526

1k

*CC525

100p

*CC526

100p

C538

4.7

*CC533

100p

*CC532

100p

R535

1k

C537 2200p

1SR154-400TE-25

D412

0.47

C412

0.47

C414

100p

C551

100p

C552

1k

R551

1k

R552

G

L1

R1

L2

R2

G

L1

R1

L2

R2

5.0

JW522

*C557

2200p

C555

0.1

C556 0.1

*C558

2200p

*JS001

*JS002

16V

470

C415

16V

470

C413

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

18P

CN555

+7V

-7V

R-CH(V2)

R2-GND

L-CH(V2)

R2+15V

GND

FR

FL

SW

C

SR

SL

GND

SBR

SBL

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

4142434445464748495051525354555657585960

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

BD3471KS2

ELECTRICAL VOLUME

IC551

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

18P

CN556

ZONE2 L

ZONW2 R

PROTECT

DATA

CLK

MULTI-IN

VACS

L-IN

R-IN

GND

TUNER-R

GND

TUNER-L

SIRIUS-R

SIRIUS-L

DCAC

DM-R

DM-L

IO

G

IO

COM

KIA7807API-U/PF

IC412

2200p

C535

47k

R443

220

R446

2SC3052EF-T1-LEF

RELAY DRIVER

Q441

47k

R445

10k

R444

100k

R441

1k

R442

50V

10

C442

RY441

MA2J1110GLS0

D441

-7V

-15V

+15V

IC551

KIA7907PI

-15V REG

IC413

+15V REG

IC412

SA-CD/CD/CD-R

INL2

INR2

INL1

INR1

AGND

SBLIN1

SBRIN1

SLIN1

SRIN1

CIN1

SWIN1

FLIN1

FRIN1

AGND

ADCR

ADCL

AGND

SUB1R

SUB1L

FRIN2

FLIN2

SWIN2

CIN2

AGND

SRIN2

SLIN2

SBRIN2

SBLIN2

RECR1

RECL1

RECR2

RECL2

AGND

RECR3

RECL3

RECR4

RECL4

AGND

INR3

INL3

INR4

INL4

INR5

INL5

INR6

INL6

INR7

INL7

INR8

INL8

INR9

INL9

INR10

INL10

INL11

INR11

INL12

INR12

HPFN

LPF01

LPF02

LPFN2

AGND

LPFN1

SWVOL

VCC

DGND

VEE

OUTFR

OUTFL

OUTSW

OUTC

OUTSR

OUTSL

OUTSBL

OUTSBR

CL

DA

AA1 AA2

0

00 00 000 0000 0 000 0

6.9 00 -7 000000 00

0

A25

A26

A27

A28

A29

A30

A31

A32

A33

A34

A35

A36

MAIN BOARD

(4/4)

(Page 24)

4

MAIN BOARD

(1/4)

(Page 21)

2

50V

IC B/D

A21

A22

A23

A24

CONNECTION

BOARD

CN803

(Page 44)

D

CONNECTION

BOARD CN804

(Page 44)

E

MAIN BOARD (3/4)

VIDEO 2

BOARD

CN173

(Page 28)

C

5-12. SCHEMATIC DIAGRAM — MAIN BOARD (3/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.

2424

STR-KM7500

1234567891011 141512 13

A

B

C

D

E

F

G

H

I

J

+

-

R

+

-

L

+

-

R

+

-

L

+

-

R

+

-

SPEAKERS

L

+

-

RY406

12

3

5

6

8

4

7

2SC3052EF-T1-LEF

Q406

1

2

3

4

5

5P

CN554

R1 (UPPER TAP)

R1 (LOWER TAP)

R1 GND

R1 (LOWER TAP)

R1 (UPPER TAP)

2.2k

R451

2SC3052EF-T1-LEF

Q451

RY451

12V

Q423

RY423

12V

Q422

RY422

12V

2SC3052EF-T1-LEF

RELAY DRIVER

Q421

Q421-Q423,Q425

2.2k

R421

1k

R425

1k

R429

MA2J1110GLS0

D423

MA2J1110GLS0

D406

MA2J1110GLS0

D421

MA2J1110GLS0

D422

MA2J1110GLS0

D451

RY425

12V 1

2

3

4

5

6

MA2J1110GLS0

D425

Q425

R437

2.2k

10

*RR500

0.01

*CC500

0.01

*CC501

10

*RR501

R438

33

R430

33

R426

33

R422

47

R453

R406

33

680

R456

R455

680

R440

47k

R428

47k

R432

R424

47k

R454

R408

47k

RY421

12V

R409

2.2k

D403

0.1

C402

25V

2200

C403

1SR154-400TE-25

D401-D404

D401

25V

1000

C404

1

2

3

3P

*CN553

R2 AC

R2 CENTER TAP

R2 AC

D402

D404

0.1

C401

1

3

4

5

CN552

5P

HP DETECT

R-CH

GND

L-CH

TB500

1

2

3

4

5

TB502

1

2

3

4

TB503

1

2

3

4

5

6

0.01

*CC504

0.01

*CC505

0.01

*CC506

0.01

*CC507

0.01

*CC508

10

*RR504

10

*RR505

C700 1000p

C699

1000p

10

*RR506

10

*RR507

10

*RR508

C703 1000p

C702 1000p

C701 1000p

250V

2A

F401

250V

2A

F402

1

8

3

4

5

6

7

8P

CN551

HP DETECT

BRIDGEABLE RY

HP RY

C-SL-SR RLY

SW PREOUT RY

FRONT A RY

SBR-SBL RLY

FH001

F403

T6.3AL /250V

F404

T6.3AL /250V

FH002

FH003

FH004

R407

47

0.22

100V

C406

0.22

100V

C407

D5SBA20-4003

D407

~

C409

0.01 71V

C408

0.01 71V

SPK_C

SPK_SR

SPK_SL

SPK_FL-A

+15V

FR_OUT

FL_OUT

SPK_FR-A

15V_GND

+15V

-15V

SBR

SBL

AA3 AA4

0.8

0.2

0.8

0.2

0.8

0.2

0.8

0.2

15.6 0

15.7

0

A36

A37

A38

A39

A40

A41

A42

A43

A44

A45

A46

A47

2W

FRONT A

SURROUND

CENTER

SURROUND

BACK/ BI AMP/

FRONT B

A21

A22

A23

A24

MAIN BOARD

(2/4)

(Page 22)

3

MAIN BOARD

(3/4)

(Page 23)

4

HEADPHONE

BOARD

CNP790

(Page 45)

F

DIGITAL BOARD

(2/4)

CN2100

(Page 40)

N

P

MAIN BOARD (4/4)

POWER

TRANSFORMER

T901

(Page 34)

POWER

TRANSFORMER

T901

(Page 34)

C697 1000p

C698 1000p

5-13. SCHEMATIC DIAGRAM — MAIN BOARD (4/4) — • See page 11 for Block Diagram • Refer to page 49 IC Block Diagrams.

Sony STR-KM7500 Schematic

SERVICE MANUAL

TABLE OF CONTENTS

1. SERVICING NOTES

DISASSEMBLY

case

TEST MODE

ELECTRICAL CHECK

DIAGRAMS

5-1. BLOCK DIAGRAM — DISPLAY SECTION —

5-2. BLOCK DIAGRAM — VIDEO SECTION —

5-3. BLOCK DIAGRAM — HDMI SECTION —

5-4. BLOCK DIAGRAM — STANDBY DCDC SECTION —

5-5. BLOCK DIAGRAM — DIGITAL (1/2) SECTION —

5-6. BLOCK DIAGRAM — DIGITAL (2/2) SECTION —

5-7. BLOCK DIAGRAM — CONNECTION SECTION —

5-8. BLOCK DIAGRAM — MAIN SECTION —