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Sony STR DA2400ES Service Manual - Page 30

Block, Diagram, Amp

UPC - 027242729872

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STR-DA2400ES/DG920 6-4. BLOCK DIAGRAM - AMP Section - -2 -1 RELAY DRIVE Q505 RY500 -2 L_OUT, SL_OUT, SBL_OUT, (Page 29) 22 C_OUT, SW_OUT L_OUT SL_OUT SBL_OUT C_OUT SW_OUT POWER AMP IC500 NF2 9 8 IN2 BIAS Q471, 472 -VOUT2 11 POWER AMP IC600 NF2 9 8 IN2 BIAS Q571, 572 -VOUT2 11 POWER AMP IC400 NF2 9 8 IN2 BIAS Q671, 672 -VOUT2 11 POWER AMP IC700 NF1 5 6 IN1 BIAS Q421, 422 -VOUT1 3 BOOSTER Q473 RV470 BIAS ALIGNMENT (DA2400ES: AEP, ECE, UK) BOOSTER Q474 BOOSTER Q573 RV570 BIAS ALIGNMENT (DA2400ES: AEP, ECE, UK) BOOSTER Q574 BOOSTER Q673 RV670 BIAS ALIGNMENT (DA2400ES: AEP, ECE, UK) BOOSTER Q674 BOOSTER Q423 RV400 BIAS ALIGNMENT (DA2400ES: AEP, ECE, UK) BOOSTER Q424 Abbreviation ECE : Continental European, East European and Russian models R-ch is omitted due to same as L-ch. SIGNAL PATH : AUDIO (ANALOG) VEE (FOR POWER AMP) LIMITER SWITCH Q1902 LIMITER SWITCH Q1903 AMP B- LIMITER CONTROL Q1907, 1908 LIMITER CONTROL Q1901, 1914 CURRENT DETECT Q475, 476 CURRENT DETECT Q575, 576 CURRENT DETECT Q675, 676 CURRENT DETECT Q425, 426 AF POWER PROTECTOR Q720, 728, 729 OVER LOAD DETECT IC1901 D1907 D1911 23 172 AF POWER SENSOR Q477 AF POWER SENSOR Q577 AF POWER SENSOR Q677 AF POWER SENSOR Q427 D4007 D4005 D4006 D4008 D4009 D4004 STR-DA2400ES/DG920 30 30 -1 RELAY DRIVE Q601 -2 RY601 R-CH -1 RELAY DRIVE Q611 RY611 -2 -1 R-CH RELAY DRIVE Q1502 RY1502 -2 -1 R-CH RELAY DRIVE Q1501 RY1501 RELAY DRIVE Q1503 RY1503 RELAY DRIVE Q560 RY401 17 22 21 19 18 20 10 SYSTEM CONTROLLER IC8014 (4/7) 4/8_RY PROTECTOR HP_RY SP_A_RY SP_B_RY SR_RY SB_RY C_RY PREOUT_RY HP_IN J702 PHONES TM601 (DG920) TM602 (DA2400ES) + L - FRONT A - R + + L - FRONT B - R + TB1501 (DA2400ES) TB1503 (DG920) + L - SURROUND - R + SPEAKERS + L - SURROUND BACK - R + TB1502 (DA2400ES) TB1504 (DG920) + CENTER - J406 SUBWOOFER AUDIO OUT (DG920) PROTECTOR 25 (Page 34) RELAY 23 (Page 29) 54

Section	Page
COVER	1
TABLE OF CONTENTS	4
1. SERVICING NOTES	5
2. GENERAL	7
3. DISASSEMBLY	13
3-1. DISASSEMBLY FLOW	13
3-2. CASE	14
3-3. FRONT PANEL BLOCK (DA2400ES)	14
3-4. FRONT PANEL BLOCK (DG920)	15
3-5. TUNER (FM/AM), CIS BOARD AND PREOUT BOARD	15
3-6. DIGITAL VIDEO BOARD	16
3-7. VIDEO BOARD	16
3-8. BACK PANEL BLOCK (DA2400ES)	17
3-9. BACK PANEL BLOCK (DG920)	17
3-10. MICON BOARD, DIGITAL BOARD	18
3-11. ACLASS BOARD	18
3-12. MAIN BLOCK	19
3-13. MAIN BOARD	19
4. TEST MODE	20
5. ELECTRICAL ADJUSTMENT	24
6. DIAGRAMS	27
6-1. BLOCK DIAGRAM - DIGITAL AUDIO/TUNER Section -	27
6-2. BLOCK DIAGRAM - DSP/XM Section -	28
6-3. BLOCK DIAGRAM - ANALOG AUDIO Section -	29
6-4. BLOCK DIAGRAM - AMP Section -	30
6-5. BLOCK DIAGRAM - HDMI Section -	31
6-6. BLOCK DIAGRAM - VIDEO (1/2) Section -	32
6-7. BLOCK DIAGRAM - VIDEO (2/2)/PANEL Section -	33
6-8. BLOCK DIAGRAM - POWER SUPPLY Section -	34
6-9. PRINTED WIRING BOARD - DIGITAL Board (Component Side) -	36
6-10. PRINTED WIRING BOARD - DIGITAL Board (Conductor Side) -	37
6-11. SCHEMATIC DIAGRAM - DIGITAL Board (1/2) -	38
6-12. SCHEMATIC DIAGRAM - DIGITAL Board (2/2) -	39
6-13. PRINTED WIRING BOARD - DIGITAL VIDEO Board (Component Side) -	40
6-14. PRINTED WIRING BOARD - DIGITAL VIDEO Board (Conductor Side) -	41
6-15. SCHEMATIC DIAGRAM - DIGITAL VIDEO Board (1/4) -	42
6-16. SCHEMATIC DIAGRAM - DIGITAL VIDEO Board (2/4) -	43
6-17. SCHEMATIC DIAGRAM - DIGITAL VIDEO Board (3/4) -	44
6-18. SCHEMATIC DIAGRAM - DIGITAL VIDEO Board (4/4) -	45
6-19. PRINTED WIRING BOARD - MAIN Board -	46
6-20. SCHEMATIC DIAGRAM - MAIN Board (1/3) -	47
6-21. SCHEMATIC DIAGRAM - MAIN Board (2/3) -	48
6-22. SCHEMATIC DIAGRAM - MAIN Board (3/3) -	49
6-23. PRINTED WIRING BOARD - ACLASS Board -	50
6-24. SCHEMATIC DIAGRAM - ACLASS Board -	51
6-25. PRINTED WIRING BOARD - VIDEO Board -	52
6-26. SCHEMATIC DIAGRAM - VIDEO Board -	53
6-27. PRINTED WIRING BOARD - DSP Board -	54
6-28. SCHEMATIC DIAGRAM - DSP Board -	55
6-29. PRINTED WIRING BOARD - MICON Board (Component Side) -	56
6-30. PRINTED WIRING BOARD - MICON Board (Conductor Side) -	57
6-31. SCHEMATIC DIAGRAM - MICON Board (1/3) -	58
6-32. SCHEMATIC DIAGRAM - MICON Board (2/3) -	59
6-33. SCHEMATIC DIAGRAM - MICON Board (3/3) -	60
6-34. PRINTED WIRING BOARD - LIMITER Board -	61
6-35. SCHEMATIC DIAGRAM - LIMITER Board -	61
6-36. PRINTED WIRING BOARDS - CONNECTOR Section -	62
6-37. SCHEMATIC DIAGRAM - CONNECTOR Section -	63
6-38. PRINTED WIRING BOARD - DISPLAY Board -	64
6-39. SCHEMATIC DIAGRAM - DISPLAY Board -	65
6-40. PRINTED WIRING BOARDS - PANEL Section -	66
6-41. SCHEMATIC DIAGRAM - PANEL Section -	67
6-42. PRINTED WIRING BOARD - SURR SPEAKER Board -	68
6-43. SCHEMATIC DIAGRAM - SURR SPEAKER Board -	69
6-44. PRINTED WIRING BOARD - CIS Board (DA2400ES: US model) -	70
6-45. SCHEMATIC DIAGRAM - CIS Board (DA2400ES: US model) -	71
6-46. PRINTED WIRING BOARD - PREOUT Board (DA2400ES: AEP, ECE, UK models) -	72
6-47. SCHEMATIC DIAGRAM - PREOUT Board (DA2400ES: AEP, ECE, UK models) -	72
6-48. PRINTED WIRING BOARD - DCDC CON Board -	73
6-49. SCHEMATIC DIAGRAM - DCDC CON Board -	73
6-50. PRINTED WIRING BOARDS - POWER Section -	74
6-51. SCHEMATIC DIAGRAM - POWER Section -	75
7. EXPLODED VIEWS	105
7-1. CASE SECTION	105
7-2. FRONT PANEL SECTION (DA2400ES)	106
7-3. FRONT PANEL SECTION (DG920)	107
7-4. DIGITAL VIDEO BOARD SECTION	108
7-5. BACK PANEL SECTION	109
7-6. CHASSIS SECTION	110
8. ELECTRICAL PARTS LIST	111
ACLASS	111
A-CLASS SUPPORT A	113
A-CLASS SUPPORT B	113
CIS	113
DCDC CON	114
DIGITAL	114
DIGITAL VIDEO	118
DISPLAY	124
DSP	126
JOG	127
LED	127
LIMITER	127
MAIN	127
MIC	134
MICON	134
MICON DIGITAL CONN	138
POWER SWITCH	139
PREOUT	139
STANDBY	139
SURR SPEAKER	140
VIDEO	141
VIDEO2	142

Match case Limit results 1 per page

STR-DA2400ES/DG920

6-4.

BLOCK

DIAGRAM

- AMP Section -

NF2

IN2

(DA2400ES: AEP, ECE, UK)

172

PROTECTOR

PREOUT_RY

HP_IN

C_RY

SB_RY

SP_B_RY

SP_A_RY

HP_RY

SYSTEM CONTROLLER

IC8014 (4/7)

–VOUT2

BIAS

Q471, 472

BOOSTER

Q473

BOOSTER

Q474

CURRENT

DETECT

Q475, 476

RELAY

PROTECTOR

AF POWER

SENSOR

Q477

POWER AMP

IC500

NF2

IN2

–VOUT2

BIAS

Q571, 572

BOOSTER

Q573

BOOSTER

Q574

CURRENT

DETECT

Q575, 576

AF POWER

SENSOR

Q577

POWER AMP

IC600

NF2

IN2

–VOUT2

BIAS

Q671, 672

BOOSTER

Q673

BOOSTER

Q674

CURRENT

DETECT

Q675, 676

AF POWER

SENSOR

Q677

POWER AMP

IC400

POWER AMP

IC700

NF1

IN1

AMP B–

–VOUT1

(DG920)

BIAS

Q421, 422

BOOSTER

Q423

BOOSTER

Q424

VEE

(FOR POWER AMP)

CURRENT

DETECT

Q425, 426

OVER LOAD

DETECT

IC1901

LIMITER

CONTROL

Q1907, 1908

LIMITER

CONTROL

Q1901, 1914

LIMITER

SWITCH

Q1902

LIMITER

SWITCH

Q1903

AF POWER

SENSOR

Q427

AF POWER

PROTECTOR

Q720, 728, 729

RY401

SR_RY

RELAY DRIVE

Q560

RY1503

RELAY DRIVE

Q1503

RY1502

RELAY DRIVE

Q1502

RY611

RELAY DRIVE

Q611

RY601

RELAY DRIVE

Q601

4/8_RY

RY500

RELAY DRIVE

Q505

TM601 (DG920)

TM602 (DA2400ES)

TB1501 (DA2400ES)

TB1503 (DG920)

TB1502 (DA2400ES)

TB1504 (DG920)

RY1501

RELAY DRIVE

Q1501

D4007

D4005

D4006

D4008

D4009

D4004

SUBWOOFER

AUDIO OUT

J406

D1907

RV470

D1911

CENTER

–

R-CH

–

SURROUND

SURROUND BACK

–

FRONT B

BIAS ALIGNMENT

R-CH

–1

–2

–1

–2

–1

–2

J702

–2

–1

–

FRONT A

PHONES

SPEAKERS

: AUDIO (ANALOG)

SIGNAL PATH

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

SL_OUT

L_OUT

L_OUT, SL_OUT, SBL_OUT,

C_OUT, SW_OUT

SBL_OUT

C_OUT

SW_OUT

(DA2400ES: AEP, ECE, UK)

RV570

BIAS ALIGNMENT

(DA2400ES: AEP, ECE, UK)

RV670

BIAS ALIGNMENT

(DA2400ES: AEP, ECE, UK)

RV400

BIAS ALIGNMENT

Abbreviation

: Continental European, East European and Russian models

ECE

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