Alesis XF-7 Schematic

ALESIS

MultiMix FireWire

16

(XF7)

Service Manual

P/N: 8-31-0170-A

The information in this document contains privileged and confidential information.
It is intended only for the use of those authorized by Alesis. If you are not the
authorized, intended recipient, you are hereby notified that any review,
dissemination, distribution or duplication of this document is strictly prohibited. If
you are not authorized, please contact Alesis and destroy all copies of this
document. You may contact Alesis at [e-mail] or at
[e-mail].

Copyright Alesis, LLC

THIS DOCUMENT CONTAINS SENSITIVE

PROPRIETARY INFORMATION.

ALL RECIPIENTS MUST HAVE A CURRENT

NON-DISCLOSURE AGREEMENT ON FILE

COPIES OF THIS DOCUMENT

ATTENTION!

WITH ALESIS, LLC.

DO NOT MAKE ILLEGAL

Confidential Alesis Service Manual 8-31-0170-A

Preface

This document is intended to assist the service technician in the operation,
maintenance and repair of the Alesis device. Together with the User Reference
Manual, this document provides a complete description of the functionality and
serviceability of the Device. Any comments or suggestions you may have
pertaining to the document are welcome and encouraged.

READ THIS!

In addition to any purchase price that Alesis may charge as consideration for Alesis selling or
otherwise transferring this service manual (“Manual”) to you, if you are not a service and repair
facility (“Service Center”) authorized by Alesis in writing to be an authorized Service Center,
Alesis sells or transfers the Manual to you on the following terms and conditions:

Only Service Centers authorized by Alesis in writing are authorized to perform service and repairs
covered by an Alesis warranty (if any), and transfer of the Manual to you does not authorize you
to be an authorized Service Center. Therefore, if you perform, or if the Manual is used to

perform, any service or repairs on any Alesis product or part thereof, any and all
warranties of Alesis as to that product and any service contract with Alesis for that
product shall be voided and shall no longer apply for such product, even if your services
or repairs were done in accordance with the Manual.

All service or repairs done by you or with reference to the Manual shall be solely your
responsibility, and Alesis shall have no liability for any such repairs or service work. All such

service or repairs are performed at the sole risk of the person performing the service or
repairs. You agree that all such work will be performed in a competent, professional and safe

manner at all times and to indemnify and fully hold Alesis and its successors and assigns
harmless in the event of any failure to so perform.

Your purchase of the Manual shall be for your own ultimate use and shall not be for purposes of
resale or other transfer.

As the owner of the copyright to the Manual, Alesis does not give you the right to copy the
Manual, and you agree not to copy the Manual without the written authorization of Alesis. Alesis
has no obligation to provide to you any correction of, or supplement to, the Manual, or any new or
superseding version thereof.

Alesis shall have the right to refuse to sell or otherwise transfer repair parts or materials to you in
its sole discretion. You shall not use, sell or otherwise transfer spare or replacement parts
supplied by Alesis to you (i) to repair or be used in products manufactured for or by third parties
or (ii) to any third parties for any purpose.

You shall not make any warranties or guarantees with respect to the products of Alesis or the use
thereof on behalf of Alesis or in your own name.

The foregoing describes the entire understanding related to sale or transfer of the Manual to you,
and no other terms shall apply unless in a writing signed by an authorized representative of
Alesis.

All Trademarks are property of their respective companies.

Confidential Alesis Service Manual 8-31-0170-A

Warnings

TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE
THIS PRODUCT TO WATER OR MOISTURE.

The arrowhead symbol on a lightning flash inside a triangle is
intended to alert the user to the presence of un-insulated
"dangerous voltage" within the enclosed product which may be of
sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point inside a triangle is intended to alert the user
to the presence of important operating, maintenance and servicing
instructions in the literature which accompanies the product.

REPAIR BY ANY PERSON OR ENTITY OTHER THAN AN AUTHORIZED
ALESIS SERVICE CENTER WILL VOID THE ALESIS WARRANTY.

PROVISION OF THIS MANUAL DOES NOT AUTHORIZE THE RECIPIENT TO
COMPETE WITH ANY ALESIS DISTRIBUTOR OR AUTHORIZED REPAIR
SERVICE CENTER IN THE PROVISION OF REPAIR SERVICES OR TO BE
OR MAKE REPAIRS AS AN AUTHORIZED SERVICE CENTER.

ALL REPAIRS DONE BY ANY ENTITY OTHER THAN AN AUTHORIZED
ALESIS SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF
THAT ENTITY, AND ALESIS SHALL HAVE NO LIABILITY TO THAT ENTITY
OR TO ANY OTHER PARTY FOR ANY REPAIRS BY THAT ENTITY.

Regarding the Power Supply Fuse

CAUTION: The product under service may employ the use of a
replaceable fuse. Danger of fire or electrocution if fuse is
incorrectly replaced. Replace with only the same type or
equivalent type recommended by the equipment manufacturer.

Regarding the Internal Battery

CAUTION: The product under service may employ the use of a
internal battery. Danger of explosion if battery is incorrectly
replaced. Replace only with the same or equivalent type
recommended by the manufacturer. Dispose of used batteries
according to the manufacturer's instruction.

Confidential Alesis Service Manual 8-31-0170-A

Safety Instructions

Carefully read the applicable items of the operating instructions and these safety
suggestions before using this product. Use extra care to follow the warnings
written on the product itself and in the operating instructions. Keep the operating
instructions and safety suggestions for reference in the future.

1. Power Source. The product should only be connected to a power supply which is described
either in the operating instructions or in markings on the product.

2. Power Cord Protection
step on the cords and such that nothing will be placed on or against them.

3. Periods of Non-use
AC power supply cord should be unplugged from the AC outlet.

4. Foreign Objects and Liquids
openings of the product.

5. Water or Moisture

6. Heat

7. Ventilation

8. Mounting

9. Cleaning

10. Service

11. Damage to the Product

. Do not place the product near heat sources such as stoves, heat registers, radiators or

other heat producing equipment.

. When installing the product, make sure that the product has adequate
ventilation. Improperly ventilating the product may cause overheating, which may damage the
product.

. The product should only be used with a rack which the manufacturer
recommends. The combination of the product and rack should be moved carefully. Quick
movements, excessive force or uneven surfaces may overturn the combination which may
damage the product and rack combination.

. The product should only be cleaned as the manufacturer recommends.

. The user should only attempt the limited service or upkeep specifically described in
the operating instructions for the user. For any other service required, the product should be
taken to an authorized service center as described in the operating instructions.

situations including without limitation when:
a. Liquid has spilled or objects have fallen into the product,
b. The product is exposed to water or excessive moisture,
c. The AC power supply plug or cord is damaged,
d. The product shows an inappropriate change in performance or does not operate

normally, or

e. The enclosure of the product has been damaged.

. AC power supply cords should be placed such that no one is likely to

. If the product is not used for any significant period of time, the product's

. Take care not to allow liquids to spill or objects to fall into any

. The product should not be used near any water or in moisture.

. Qualified service personnel should service the unit in certain

Confidential Alesis Service Manual 8-31-0170-A

ALESIS

MultiMix FireWire

16

(XF7)

SCHEMATIC

AND

PCB

FILES

Confidential Alesis Service Manual 8-31-0170-A

8

22uF/16V

22uF/16V

C275

C276

R153

R152

6K04

C124

330P

D D

C123

330P

C265
22uF/16V

J6

AUX_RETURN_B

T
TS
RS

R

S

C C

J7

AUX_RETURN_B

T
TS
RS

R

S

B B

R270

100

Q9

BC857B

A A

C269
100n

I LIMITOR

CH/L

CH/R

120
R29

16

15

120

R27

6K04

1

2

2

3

6

5

INL+

INL-

INR+

INR-

AG

3

NJM4580E

-

+

NJM4580E

-

+

+15V

820

AL1101

AG VA

12 13

R271

BC857B

Q20

R393
330K

100P
C21

IC35A

4

8

100P

C29

IC35B

8

IC14

V-15

C189
100n

V+15

C184

100n

BC857B

FRMT

REF+

REF-

DOUT

1

7

R293
820

Q19

C277

100n

10uF/25V

C106

67

VDDG

8

R154

4

100n
C115

5

470

R134

14

MID

R135

10
9

WC

DG

11

10K%1

R26

C23
20P

R47

10K%1 R59

C24
100P

10K%1

10K%1

R49

R48

C27
20P

R28

10K%1 R60 10K%1

C28
100P

1N4148

D11

D10

1N4148

1N4148

D12

D9

1N4148

R395
100

C191

100n

-15V

470

10K%1

R25

R388
100K

R390
3K6

0.01uF

R392
100K

R351
3K6

47

3

2

5

6

C5

C30

V+15

C31

Q18

BC857B

100n

V+5

V+5

TO:MICON/DSP PCB

HEADER_6P

V-15

4

+

-

IC2A

NJM4580E

10K%1

8

+

-

IC2B

NJM4580E

47/25V

C393

47/25V

C392

R394
100

C190

R355 220%1

R136 10

TE3

1

2

3

4

5

6

HEADER_6P

1

20P

7

20P

R

L

100n

C264

100n

C44

47/25V

C263

7

TE4

1

2

3

4

5

6

1

2 3

ENCODER/SW

2

R147

56K

R100

56K

SOLO L BUS

SOLO R BUS

LED20

G

13

OUT4

OUT3

OUT1

OUT2

LED21

G

R352

7

47/25V

3

1

47/25V

3

1

IC36

12

GND

VCC

C375

C394

470%1

C43

47/25V

14

1234567 8

VR21

VR39
50KW

VR39

50KW

2

11

4IN+

2IN-

C116

100n

R156 470

C117

100n

R155

470

5
4

R290

5K1

AUX B

R313

5K1

AUX B

LM339DR

9

10

4IN-

3IN+

2IN+

1IN-

R353

AL1201

6

VD

7

DIN

9

WC

4

REF+

5

REF-

8

FRMT

10

DEM

DG

11

C160 100P

R312

NJM4580E

2

-

3

+

C163

R314

NJM4580E

6

-

5

+

C161
100n

C217

R519

NJM4580E

IC41A

2

-

3

+

4

C209 20P

R526

NJM4580E

IC41B

6

-

5

+

8

LED17

G

1IN+ 3 IN-

LED19

G

430%1

IC15

1

OUTL-

2

OUTL+

16

OUTR-

15

OUTR+

14

MID

AG

AG VA

3

12 13

C126
100n

10K

IC28A

R289

1

5K1

V-15

4

C162
100n

100P

10K

IC28B

R315

7

5K1

8

V+15

20P

33K

33K

PFL BUS

C423

1

47/25V

V-15

R518

20K
C216
100n

C422

7

47/25V

V+15

R517

20K

C210
100n

LED16

G

IC30

11

12

13

14

4IN+

GND

OUT4

OUT3

OUT1

OUT2

VCC

2IN-

1234567 8

LED18

G

R354 470%1

6

R185

14K7

R186

C122 330P

7K32
R187

R188

7K32

7K32

R189

R190
7K32

10K
R151

SOLO MODE

LM339DR

10

4IN-

2IN+

1K%1

C125
1000P

1K%1

R184

R227
14K7

R228

1K%1

C127

1000P

1K%1

R231

R230

14K7

V-15 V+15

12

-

4

+

5

IC16B
LM339

R150

10K

-

8

+

9

IC16C

LM339

10uF/35V

BUS L

BUS R

R516 8K2

NJM4580E

2

-

3

+

C207
100n

PFL

SW23

LED12

G

1IN+ 3 IN-

LED14

G

620%1

47P

IC40A

4

C528

SOLO

9

3IN+

1IN-

R316

6

-

2

+

3

IC17A
TL084

C129
330P

R229 14K7

C131 330P

-

6

+

5

IC17B
TL084

C130
330P

2

14

C306

47/25V
C418

1

V-15

20K

R502

C203 20P

R506

NJM4580E

2

-

R507
10K

3

+

C202 100n

13

14

OUT4

OUT3

OUT1

OUT2

1234567 8

5

V+15

4

C348
22uF/16V

1

R265

8K2

C128
100n

V-15

11

C350

22uF/16V

7

R225

8K2

R181
56

3

-

6

7

R183
680

-

10

11

R180
6K8

E SW

10K

IC39A

V-15 V+15

4

LED11

G

IC29 LM339DR

11

12

4IN+

GND

VCC

2IN-

LED13

G

910%1

+

+

LM339
IC16D

10

4IN-

2IN+

LM339
IC16A

R513
220K

R515

15k

C420

1

47/25V

9

3IN+

1IN-

R317 1K3%1

1

13

BUS L

BUS R

V-15

1IN+ 3 IN-

10

12

13

R179
2K7

LED3

LED10

Y

LED15

Y

IC17C

TL084

+

9

-

R266 3K9

1K
R264

IC17D
TL084

+

-

R226

3K9

R224

R223

1K

R182
2K7

GRN

LED2

RED

V-15

100K

C206 100n

R524

R512

10k

R514

10k

R499
15k

C200 20P

R504

R503
10K

R492
20K

14

OUT3

OUT1

1234567 8

5

8

14

120

NJM4580E

IC40B

6

-

5

+

NJM4580E

IC39B

6

-

5

+

C201 100n

LED6

Y

IC23 LM339DR

12

13

GND

OUT4

OUT2

VCC

LED8

Y

R295

7K5%1R318

R267
120

AUX A

AUX B

C222

R525 7K5

NJM4580E

IC44B

6

-

5

+

8

C224 47P

R529 7K5

NJM4580E

IC44A

2

-

3

+

4

7

V+15

8

C199
100n

10K

C419

7

47/25V

8

9

10

11

4IN-

4IN+

2IN-

2IN+

47P

C425

7

47/25V

V+15

VR65
10KD

C223
100n

C426

1

47/25V

V-15

VR65
10KD

C215
100n

MAIN_FADER_R

D21

1N4148

R505
20K

LED7

RED

3IN+

1IN-

1IN+ 3 IN-

LED9

RED

R294 8K2%1

C48 20P

R62 8K2

NJM4580E

2

-

3

+

C51 20P

R53

NJM4580E

2

-

3

+

3

1

MAIN_FADER_L

3

1

R500

5K1

R493 12K

R491 12K

R494 51K

51K

R409

-15V

+15V

4

R52

C247

R50
30K

C266

30K
R65

C195 20P

R466

NJM4580E

2

IC37A

-

3

+

C193 20P

R446

NJM4580E

IC37B

6

-

5

+

FET4

BF513

FET1

BF513

FET3

BF513

FET2

BF513

5K1

R66

5K1

4

8

S

S

S

S

2.2UF/50V

27K

27K

R488

R440

10K

R441

10K

V-15

C192

100n

V+15

C194

100n

R495

R501

C417

6

5

6

5

1

7

R497

20K

62K
R391

62K

R389

C33 20P

R489

47K

IC3A

1

47/25V

V-15

4

C70
100n

8K2

IC4A

1

47/25V

V-15 V+15

4

C49
100n

R467

5K1

2

R445

5K1

2

4

C46 20P

R61 15K

NJM4580E

IC3B

-

+

8

15K

R67

NJM4580E

IC4B

-

+

8

C413

47/25V

R443

10K

C407

47/25V

C198

R498 22K

NJM4580E

2

3

100K

100K

47K

3

VR48

2

50KW

1

3

VR48
50KW

2

1

47/25V

120

C232

R12

R14
20K

120

R13

47/25v

120

C248

R31

R51
20K

120
R30

R83

R84

R104 120

R105

R469
8K2

SW33

2TK MIX

20P

C416

1

47/25V

V-15 V+15

C205
100n

10P

C38

33K

R96

NJM4580E

IC5A

-

+

C40 10P

R58

NJM4580E

-

+

4

IC5B

8

33K

C64
100n

C39
100n

V-15

V+15

C47
100n

C50
100n

-

+

V+15

IC38A

7

7

R442

10K

4

2

3

6

5

3

AUX_SEND_A

AUX_SEND_B

MAIN_OUT_LCH

120

120

MAIN_OUT_RCH

120

R487

8K2

C196 20P

R496 22K

NJM4580E

6

-

5

+

47/25V

C245

1

R45
10K

47/25V

C246

7

R23
10K

3

2

C225

J3

T

TS

RS
R
S

ALT 3

ALT 4

J8

T

TS

RS
R
S

OFF

ON

J18

J24

R472

IC38B

8

T

R
S

T

R
S

12K

TS
RS

TS
RS

C197
100n

ALT to MIX

47/25V

SW34

C415

7

C17 20P

R19 5K1

2

3

R44
5K1

C19 20P

R20 5K1

6

5

R46
5K1

R18

6K2

2T_OUT

R35

6K2

12K

NJM4580L

IC47A

-

+

4

V-15

NJM4580L

IC47B

-

+

8

R473

47P

R530 7K5

NJM4580E

2

IC45A

-

3

+

4

C227 47P

R531 7K5

NJM4580E

IC45B

6

-

5

+

8

L/CH

R17

2K2

R34

2K2

R/CH

R468

15K

2TKtoC_ROOM

R4

1

120

C18
100n

R21

7

V-15

C20
100n

V-15

C219
100n

V+15

C226
100n

SW24

120

1

7

RCA1

47/25V
C427

3

2

VR66

1

10KD

ALT3/4_FADER

47/25V
C428

3

2

VR66
10KD

1

C146 20P

R319 10K

NJM4580E

IC29A

1

V-15

4

C148

100N

C147 20P

R325

NJM4580E

IC29B

7

V+15

8

OFF

ON

2

C218 20P

R528

27K

NJM4580E

R527

2

-

5K1

3

+

C221 20P

R522 27K

NJM4580E

R523

6

-

5K1

5

+

R330

2

-

10K

3

+

10K

R305

6

-

10K

5

+

C150
100N

R447
22K

R486

MIXtoC_ROOM

15K

R590

1k

R68

120

R69 120

R106

120

R108 120

YH HORNG ELECTRONIC CO., LTD.

Title

XF7 OUTPUT CIRCUIT DIAGRAM

Size Document Number Rev

XF7/XF7OUT1.SCH PP

A2

Date: Sheet of

IC43A

V-15

4

C213

100n

IC43B

V+15

8

C220

100n

C307

47/25V

C310

47/25V

SW13

J19

T

TS

RS
R
S

CTRL_L_OUT

J25

T

TS

RS
R
S

CTRL_R_OUT

J5

T

TS

RS
R
S

47/25V

C563

1

V-15

C564

100N

47/25V
C424

1

R471

10K

C421

7

R470

10K

R432

IC56A

NJM4558D

C566

R782

NJM4558D

7

V+15

C565
100N

R444
22K

R591

1k

20P

10K

-

+

4

20P

10K

IC56B

+

8

R449
22K

PHONES_OUT

2

3

-

ALTtoC_ROOM

R15

R16 120

R32 120

R33 120

R418

1K8

R410

3K

R426

1K8

6

5

R781

3K

SW14

1

ALT3_OUT

120

ALT4_OUT

OUT L

OUT R

USB L

USB R

1

J4

T

TS

RS
R
S

J9

T

TS

RS
R
S

AG

2TK L-IN

C13

2TK R-IN

2 3Thursday, February 16, 2006

1

2

3

4

5

6

7

CON7P20

100P

RCA1

C18
100P

R448
22K

TE5

8

R740
R741
R742
R743
R532
R533
R534 R546

R535

6K81

R745

MIC5

J26
J27
J28
J29
J10
J11
J12

J13

TS
RS

TS
RS

TS
RS

TS
RS

MIC6
MIC7
MIC8
MIC1
MIC2
MIC3

MIC4

T

R
S

T

R
S

T

R
S

T

R
S

R748
R751
R754
R539
R542
R545

R548

4.7I

C429
C430
C431
C432
C1

C3

C4

330P

R538
R541
R544

R547

R744
R747
R750
R753

10/25V

10/25V

C487
C500
C503
C506
C251
C254
C257 R41

C260

P6SMB11CAT3

100P

Channel 1
Channel 2
Channel 3
Channal 4
Channel 5
Channel 6
Channel 7
Channel 8

D D

1

3

2

LINE 1
LINE 2
LINE 3
LINE 4
LINE 5
LINE 6
LINE 7

LINE 8

T
TS
RS

R

S

MONO INPUT
(1-4)CHANNELS

C C

LINE 9

J14

LINE 11

J15

LINE 13

J16

LINE 15

J17

ST_LCH

L/CH

STEREO INPUT

(5-12)CHANNELS

LINE 10

J20

LINE 12

J21

LINE 14

J22

LINE 16

J23

ST_RCH

B B

R/CH

J1

AUX_A_L/CH

AUX A RETURN

A A

J2

AUX_A_R/CH

4.7I

C485
C487
C489
C491
C233
C235
C237 R40

C239

100P

C6

100P

C10

100P

8

R746
R749

+48

R752
R755
R540
R543

R549

6K81

47/50V

C486
C488
C490
C492
C234C2
C236
C238

C240

47/50V

R592
R593
R594
R595
R36
R38

R42

10K%1

10K%1

R596
R597
R598
R599
R37

D59

R39

D60
D61
D62

R43

D51
D52
D53
D54

R92
R95
R99 R127

R103

10K%1

100P

C35
C37
C42

C45

C34
C36

C32

R90
R93
R97

R101

10K%1

100P

C61
C63
C66

C68

C60
C62
C65

C67

R6

10K%1

20P

R5

C8
100P

R9

10K%1

C12

20P

R10

C11
100P

C89
C94
C99

C87
C91
C95

10K%1

C7

C481
C482
C483
C484

C228
C229
C230

C231

R614
R616
R618
R621
R71
R76
R81 C56

R86

1K3%1

R117
R122

R133

30K%1

20P

C69

10K%1

R91
R94
R98C41

R102

R116
R120
R125

R131

30K%1

20P

C101

R114
R119
R124

R129

10K%1

R8

10K%1

C433
C435
C437
C439
C52
C54

680P

R607
R615
R619
R622
R73
R78
R83 C57

R88

1K3%1

D63

D64
D65
D66
D55
D56
D57
D58

P6SMB11CAT3

V+15

IC6B
IC7B
IC8B C97

IC9B

+

5

-

6

NJM4580M

20P

C90
C100

C93

C105

V-15

IC6A
IC7A
IC8A C98

IC9A

+

3

-

2

NJM4580M

20P

C88
C92
C96

C102

V-15

+

3

R7

-

10K

2

NJM4580M

R24 10K%1

C22 20P

V+15

+

5

-

10K

6

NJM4580M

R11

C13 20P

1N4148

C58

2SA1316GR

R623
R617
R620

8

30K%1

4

30K%1

4

IC1A

8

IC1B

10K%1

C441
C442
C443
C444
C71
C75
C79

C83

C434
C436
C438
C440
C53
C55

680P

C59

C112
C114

47/25V

7

R118
R123
R128

R132

C111
C113

47/25V

1

R115
R121
R126

R130

1

7

7

D30
D32
D34
D36
D1
D2

R756
R758

D3

R760

D4

R762
R550
R552
R554

R556

2K491

330p

Q21
Q23
Q25

Q27

R70
R75
R80

510%1

R85

D42
D44
D46
D48
D22 R560
D24
D26

D28

BAV-21-TFK

C292
C296
C300

C304

C104

C268

100n

C270
C271

C273

20K

R142
R144
R146

R149

C290
C294
C298

C302

C103

C267

100n

C269
C272

C274

20K

R141
R143
R145

R148

C9
100n

C25
100n

7

6

R757

1000UF/6V

C499
C502
C505
C507
C253
C256
C259

GAIN

Q45

1
Q47
Q49
Q51

VR1

VR4

Q29

Q1

Q31R613

Q3

Q33

Q5

Q7

Q35

BC847B

R764

R766

R768

R770

R558

R562 R563 D27

R564
825I

C453 R778

C73

C454

C77

C455

C81

C456

C85

183J

R170
R211
R216 R257

R177

910%1

R246
R251
R256

R261

6K8%1

C343

C346

C347

R579
R581
R583

R585

183J

R205
R210
R215 R213

R220

910%1

R245
R250
R255

R260

6K8%1

C356

C365

C370

C249

47/25V

C250

47/25V

R605
R608
R610
R612 R763

R79
R74 R553
R84 R555

C262

5KAC

2

C331
C332
C333

VR17
VR18
VR19

VR20

270K

C316
C318
C320

VR17
VR18
VR19

VR20

270K

R578
R580
R582

R584

R107

R109

C334

50KB

333J

C322

50KB

333J

56K

56K

R89

4.7

Q30

3

Q32
Q34
Q36

VR67
VR68

Q2VR2

VR69

Q4

BC847B

VR70

Q6

Q8

R765
R767
R769
R771
R559
R561

B-

R565

825I

100n

VR9
VR10
VR11

VR12

3

50KB

3 1

VR9
VR10
VR11

VR12

50KB

3 1

183J

1

50KB

123J

R207
R252

R222

910%1

2

VR26

R247 C297

VR27

R280

VR28

R283

VR29

R285

13

6K8%1

2

333J

C344C345
C363

C373

183J

13

50KB

123J

R203
R208

R218

910%1

2

VR26

R244 C360

VR27

R249
R254

VR28

R259

VR29

13

6K8%1

2

333J

C357C361
C362

C371

C374

R287

47/25V

3

VR30
503KG

1 3

C349

VR30

503KG

1

R292

47/25V

D31 C452

R759

D33

R761

D35
D37

R551D6D5

D7

R557

D8
1N4148

2K49I

330p

R624VR3
R625
R626
R627
R110
R111
R112

510%1

R113

D43
D45
D47
D49
D23
D25

D29

BAV-21-TFK

C291
C295
C299

C303

2K2

R206
R212
R217

R221

560

C293

C301

C305

123J

C358

10K

10K

C315
C317
C319

C321

C381
C367

C372

47/25V

2K2

R204
R209
R214

R219

560

C355

C364

C369

123J

C380
C359
C382

C383

47/25V

C132 20P

R263

NJM4558D

2

-

3

+

C141
100n

C143

R268

NJM4558D

6

-

5

+

C142
100n

5K1

R248
R253
R258C368

R276
R278
R281C366

5K1

R262

R284

IC22A

4

20P

IC22B

8

Q46
Q48
Q50
Q52
Q22
Q24
Q26

Q28

R171
R173
R175

R178

R169
R172
R174

R176

10K

10K

C445
C447
C449
C451
C72
C76
C80

2SA1316GR

C84

C457
C458
C459
C460
C107
C108
C109

C110
100n

R773
R775
R777
R779
R567
R569
R571

R573

3K92I

NJM4580M

6

5

100n

NJM4580M

2

3

100n

1

V-15

7

V+15

6

20P

-

+

20P

-

+

R288

5K1

R291

5K1

5

R633
R635
R637

C498
C501
C504
C508
C252
C255
C258C243

C261

R600
R601
R602
R603
R54
R55
R56

R57

LPF

SW35
SW36
SW37
SW38
SW1

SW3

SW4

10KD

CH FADER

10KD

PTE7

CON2P20

.22/50V

R639
R159
R162
R165

R168

C510
C514
C516
C520
C279
C282
C286

C288

62K

3

2

1

R332R479
R337

R481
R483 R342

R347

R485

4K7

3

2

1

R376R478
R379

R480
R482 R382

R385

R484

4K7

1

2

R536
18KI

Y

LED5
+48V

5

1K3

IC10B
IC11B
IC12B

IC13B
NJM4580E

6

-

5

+

R628
R629

8

R630
R631
R137

R139

R140

100n

47/25V

20K

C169
C173
C176

C180
100n

4K7

C168
C172
C177

C181
100n

4K7

9-40-0320

R780

100

+15V

-15V

A+5V

D+5V

C461
C462
C463
C464
C118R138
C119
C120

C511
C513
C517
C519
C280
C283
C285

R604
R606
R608
R611
R72
R74
R79

3

2

C170
C174
C178

5

6

C185
C186
C187

C289

20P

C182

20P

C188

B+

C446
C448
C450

C74
C78
C82

C86

100n

V-15V

IC48A
IC49A
IC50A
IC51A
IC10A

4

IC11A

+

IC12A

3

IC13A

-

2

NJM4580M

3K92I

R772 R671
R774
R776

R566
R568
R570

R572

C150
C153
C156

C159

R277
R279
R282

1M

R286

IC24B
IC25B
IC26B

IC27B

7

220/4V

V+15

C171

8

C175
C179

C183

C148
C151
C154

C157

R308
R309
R344

1M

R311

IC24A
IC25A
IC26A

IC27A

1

220/4V

V-15

C149

4

C152
C155

C158

C493
C494
C495
C496
C241
C242

C244

.22/50V

6K8

1

47/25V

C400
C402
C404

C406

R409

R425 R345

R435

22K

R408
R416
R424

R433

22K

C388
C389
C390

C391

20K

R632
R634

C287

R636
R638

C284

R157C281
R160

C278 SW2
C518

R163

C515

R166

C512
C509

R335
R340R417

R350

1K5

R334
R339
R310

R348

1K5

BUS L

BUS R

+48V

.22/50V

CH FADER

VR61
VR62
VR63

VR64

VR61
VR62
VR63

VR64

R537
18KI

C522
C524
C526
C528
C308
C310
C312

C314

7

V+15V

C121

R84

V-15

IC31A
IC32A

4

IC33A

+

IC34A

-

NJM4580M

10K

V+15

IC31B R431
IC32B

8

IC33B

+

IC34B

-

NJM4580M

10K

COAX SPDIF

C56
220PF

C562

0.1UF

1

GND

2

3

4

5

GND

6

DG

7

8

183J

C530

R645

C532

R648

C534

R651

C536

R654

C324

R192 C326

C328

R195
R198

C330

R201

VR75

910%1

VR76
VR77
VR78

R656

VR13

R658

VR14

R660

VR15

R662

VR16

R232 R196
R235
R238

R241

6K8%1

C529
C531
C533
C535
C323
C325
C327

270K

R664
R665
R666
R667
R574
R575
R576

220/4V

1

C399
C401
C403

C405

R333
R338
R343

R349

220/4V

7

C408 VR54
C409
C410

C411

R377
R380
R383

R388

TE1

CON8P20

123J

333J

C329

R577

LOW

VR71
VR72
VR73
VR74
VR5
VR6
VR7

VR8

HI

C

1.5K

1.5K

VR79
VR80
VR81
VR82
VR22
VR23
VR24

VR25

VR53
VR54
VR55

VR56

BAL

R414
R422
R430

R438

R415
R423

R439

BAL

MID

3

1

R640
R641
R642
R643
R158
R161
R164

R167

50KB

333J

C537
C539
C541
C543
C335
C337
C339

C341

2

R1
1K5

4

50KB

50KB

A

10KAC

V-15

4

910%1

R646
R649
R652
R655
R193

R199

R202

3

1

VR53

VR55

VR56

C521
C523
C525
C527
C307
C309
C311

C313

2

LED1
LED

2K2

560

6K8%1

R668
R669
R670

R233
R236
R239

R242

R657
R659
R661
R663
R234
R237
R240

R243

10KAC

R644
R647
R650
R653
R191
R194
R197

R200

C538
C540
C542
C544
C336
C338
C340

183J

C342
123J

47/25V

C545
C546
C547
C548
C351
C352
C353

10K

LINE_IN_CH_11
LINE_IN_CH_13
LINE_IN_CH_15

LINE_IN_CH_10

LINE_IN_CH_12
LINE_IN_CH_14
LINE_IN_CH_16

R2
1K5

C472
C473
C475
C476
C144
C145
C146

C147

C354

LINE_IN_CH_9

100n

V+15

+

5

-

6

1M

20P

LINE_IN_CH_9

LINE_IN_CH_10

LINE_IN_CH_11

LINE_IN_CH_12

LINE_IN_CH_13

LINE_IN_CH_14

LINE_IN_CH_15

LINE_IN_CH_16

CH FADER

IC18B
IC19B
IC20B

8

IC21B

NJM4580M

100/10V

7

C552

R672

C551

R675

C550

R673

C549

R674

C376

R272 C377

C378

R273
R274

C379

R275

R693
R696
R699

C469

R702

C474

R358

C470

R363

C471

R368

C134

R373

C136
C138

C140

3

R704
R705
R706

R356
R362
R367

R371

4K7

R709
R711
R713
R715

R732
R733
R734
R735

3

CON16P20

2

C465
C466

V-15

C467

4K7

R694
R697
R700
R703

47K

47K

1K5

V-15

R684
R686
R688
R690
R319
R322
R325

R328

3K9

R677R707
R679
R681
R683

R360
R365
R370

R375

C557
C558
C559
C560

C468
C133
C135
C137

C139
100n

6K8

3

2

20P

LED34
LED35
LED36

LED37

+

-

NJM4580M

C164
C165
C166

C167

LED22
LED23
LED24

LED25

BC847C

C395
C396
C397

C398

2.2/50V

MUTE/ALT3/4

LED42
LED43
LED44
LED45
LED30
LED31
LED32

LED33

IC52A
IC53A
IC54A
IC55A
IC18A
IC19A
IC20A

4

IC21A

10K

C477
C478
C479
C480

-15v

100/10V

LED38
LED39
LED40
LED41

Q38
Q40
Q42
Q44
Q11
Q13
Q15

SW39
SW40
SW41
SW42

Y

R587
R588
R589

POWER

LED4
G

C553
C554
C555
C556
C384
C385
C386

C387

1

R676
R678
R680
R682
R296
R299
R302

R305

RED

Q17

SW47
SW48
SW49
SW50
SW25
SW26
SW27

SW28

AUX A POST/PRE

R411
R419
R427

R435

R412
R420
R428

R437

V-15

R586

6K8

I LIMITOR

SW5
SW6
SW7

SW8

AUX A POST/PRE

VR95
VR96
VR97
VR98
VR57

3

VR58
VR59

VR60

10KD

2

R736

1

R737
R738
R739
R474
R475
R476

R477

+15V

R298
R301
R304

R307

47K

BC847C

Q37

Q10

Q39

Q12

Q41

Q14

Q43

Q16

R359
R364
R369

R374

R451
R453
R455

R457

TE6

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

10KAC

A

PAN

VR91
VR92
VR93
VR94
VR49
VR50
VR51

VR52

10KAC

C

R716
R718
R721
R722
R398
R401
R404

D38
D39
D40
D41

MUTE/ALT3/4

PRE

POST

5K1

27K

LED26
LED27
LED28

LED29

RED

R465

2K7

D19
D18
D17

D20

MUTE/ALT3/4

SW9
SW10
SW11
SW12

SW12

2

3

VR49
VR50
VR51

2

VR52

R717
R719

1

R720
R723
R397
R400
R403

R406

3

1

R407

D13
D14
D15

D16

R459
R461
R463

1N4148

YH HORNG ELECTRONIC CO., LTD.

Title

Size Document Number Rev

Date: Sheet of

5K1

2

MUTE/ALT3/4

SOLO/PFL

27K

SOLO/PFL

1N4148

10K

4K7

R320
R323
R326

R329

4K7

R297
R300
R303

R306

5K1

SW32

MUTE/ALT3/4

SW19
SW20
SW21

SW22

SOLO/PFL

SOLO/PFL

SW19
SW20
SW21

SW22

R378
R381

SW29
SW30

R384

SW31

R387

SW32

4K7

PFL

R331
R336
R341

R346

POST

4K7

XF7 INPUT1 CIRCUIT DIAGRAM

XF7/XF7IN1.SCH PP

A2

BUS R
BUS L

R724
R726
R729
R731
R450
R452
R454

R456
5K1

SW47

SW25

SW48

SW26

SW49

SW27

SW50

SW28

SW43

SW15

SW44

SW16

SW45

SW17

SW46

SW18

SW43

SW15

SW44

SW16

SW45

SW17

SW46

SW18

R708

R357

R710

R361

R712

R366

R714

R372

3

E SW

VR40
VR41

2

VR42

R692 VR90

VR43

R693

1

10KW

R698
R701

3

VR31
VR32

2

VR33

VR34

R685

10KW

R687
R689

1

R691

3

VR44
VR45
VR46

VR47

10KW

1

AUX B LEVEL

VR35
VR36
VR37

VR38

10KW

1

AUX A LEVEL

MIC/LINE_IN_CH1

MIC/LINE_IN_CH2

MIC/LINE_IN_CH3

MIC/LINE_IN_CH4

MIC/LONE_IN_CH5

MIC/LINE_IN_CH6

SOLO L BUS

SOLO R BUS

MIC/LINE_IN_CH7

MIC/LINE_IN_CH8

R458
R460
R462

R464

SW29
SW30
SW31

R413
R421
R429

R436

27K

2

2

MIC/LINE_IN_CH2
MIC/LINE_IN_CH3
MIC/LINE_IN_CH4
MIC/LINE_IN_CH5
MIC/LINE_IN_CH6
MIC/LINE_IN_CH7
MIC/LINE_IN_CH8

ALT3 BUS

ALT4 BUS

R396
R399
R402

R405

27K

SOLO L BUS

SOLO R BUS

VR87
VR88
VR89

AUX B LEVEL

VR83
VR84
VR85
VR86
AUX A LEVEL

BUS L
BUS R

ALT3 BUS

ALT4 BUS

PFL BUS

AUX B

AUX A

1

MIC/LINE_IN_CH1

R725
R727
R728
R730

PFL BUS

AUX B

AUX A

1 3Thursday, February 16, 2006

1

TE2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

CON16P20

8

7

6

5

4

3

2

1

M_C3

D D

220uf/16V

BC857B

BC857B

M_R16 100

M_R17

6

M_R15

10 4

9

M_Q2

5

M_LED1123

M_Q1

b c d e f g p

C C

a
7 8

47

100

100n
M_C2

M_IC1
87C52

38

16

VCC

VSS

P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7

P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7

PSEN

ALE
RST

EA

37
36
35
34
33
32
31
30

18
19
20
21
22
23
24
25

26
27

4
29

M_C1

M_R2 470
M_R3 470

100n

16

5
6
7
8

2

12

3
4

M_R15

100n

ADC_IN

P0/DATA
P1/CLK
P2
P3

INT/EXT
RESET

XTAL1
XTAL2

M_IC2

AL3201

15

VCC

DAC_OUT

WORDCLK

3V_BYPASS

GND

13

BITCLK

SYSCLK

M_R14 47

1

10
9
11

14

M_R5

M_R4 47

100n

M_TE1

1
2
3
4
5
6

CON6P

For Development ONLY

1
2
3

M_R13 220
M_R12 220
M_R10
M_R9 220
M_R8
M_R7 220
M_R6 220

M_R11

4
5
6

B B

M_TE2

M_TE3

1

220

220

220

40
41
42
43
44

1
2
3

5
7
8

9
10
11
12
13

15

6
17
28
39
14

P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7

P3.0/RXD
P3.1/TXD
P3.2
P3.3
P3.4
P3.5
WR
RD

XTAL1
NC1
NC2
NC3
NC4
XTAL2

2
3
4
5
6

CON6P

12MHz
M_M1

M_R1

100

A A

Title

Size Document Number Rev

8

7

6

5

4

3

Date: Sheet of

MICON_DSP for XA SERIES

XA\XAXMICON PP

A3

2

3 3Tuesday, September 16, 2003

1

GND

GND

DG

+Vin

PIC4

Feedback

ON/OFFGND

Output

DG

+Vin

PIC3

Feedback

ON/OFFGND

Output

PIC2

GND

LM7805_+5V

PIC5A

LM7815_+15V

PIC1

GND

DG

AG

DG

+3.3V

+12V

D+5V

A+5V

-15V

AG

+15V

+48V