Alto MAXIDRIVE 2.3 Schematic

MODEL: MAXIDRIVE2.3+

www.altoproaudio.com

Version 1.0

CONTENT

1. Introduction......................................................................................1

2. Specification.....................................................................................3

3. Schematic Diagram.........................................................................5

4. Wiring Diagram................................................................................1

5. PCB Layout......................................................................................11

6. Test Procedure................................................................................23

7. Exploded View & Mechanical Parts List..................................25

8. BOM....................................................................................................26

0

1. Introduction

MAXIDRIVE2.3+ is an extremely versatile digital processor for loudspeaker systems
based on the GENERALMUSIC custom DSP RED 208. This powerful 40 bit
resolution DSP, together with low-noise 20 bit converters, provides an extremely high
processing quality and a dynamics suitable for the most professional applications.
MAXIDRIVE2.3+ has 2 inputs (analog or digital) and 4 independent outputs and can
be configured as 2-way stereo, 2, 3, 4way mono or as distribution mixer with up to 4
outputs. Configurations that allow the 2 input signals to be summed and routed to
different outputs are also available.

Each of the 2 inputs has:

- MASTER DELAY, available also on the input SUM;

- 5-BAND PARAMETRIC EQ;

- Level control.
Each of the 4 outputs has:

- DELAY line;

- 5-BAND PARAMETRIC EQ;

- CROSSOVER HP and LP filters which can be selected from the Bessel,
BUTTERWORTH and LINKWITZ-RILEY types with slopes up to 48dB;

- Phase control with 5°steps through a full 360°;

- Digital LIMITER;

- Level and MUTE control.

All settings can be stored and recalled in an instant. In fact, the system has:

- 21 Factory PRESETS, each of which can be used as a basic configuration for
preparing custom PRESETS, others already optimized for ALTO louderspeaker
systems.

- 128 User PRESETS, which can be freely programmed to store all the system
settings.

- Each User can contain any of the Input/Output configurations available.

All operations are carried out via user interface that includes a 2×16LCD, a
convenient DIAL for the parameter modification and selector buttons for the direct
access to all the features.

40-bit custom DSP
Balanced XLR inputs and outputs
20-bit A/D and 24-bit D/A converters
Configurations: STEREO 2-WAY, MONO 3 or 4-WAY, 4 OUTPUT DISTRIBUTION

- 1 -

MIXER

Features:
CROSSOVER, PARAMETRIC EQ, DELAY, PHASE, LIMITER 64FACTORY

PRESETS +64 USER PRESETS
2*16 LCD Display
VU-METERS for each inputs VU-METER+MUTE for each output
MIDI interface
Switching Built-in power supply
1 unit

- 2 -

2. Technical Specif ication

INPUT section

Output Section

DSP Section

Features

Connectors 2 x COMBO
Nominal input sensitivity 0 dB (0.775 V)
Input Impedance 30kOhm, electronically balanced
Maximum Input Level +20dBu
Input Gain -30 / +6 dB variable in 0.5 dB steps
Connectors 4 x XLR-M
Output Impedance 600 Ohms, electronically balanced
Nominal Output Level 0 dBu
Maximum Out put Level +20 dBu
Output Gain -30 / +6 dB variable in 0.5 dB steps
A/D converters 20 bit
D/A converters 20 bit
Internal dynamics 40 bit
Sampling frequency 48 kHz
Configuration
Crossover Filters Type

2-WAY STEREO, 2,3,4 - WAY MONO

Bessel, Butter worth or Linkwitz- Riley

General
Performance

Crossover Filters Slope 6, 12, 18, 24, or 48dB per octave
Delay Step

21 microseconds minimum

Max Delay time 2621 ms (inputs), 291 ms (outputs)
EQ filters Up to 40 maximum (depending on the

crossover slope)

EQ Type Peak, 6dB Lo-Shelf, 12dB Lo-Shelf,

6dB Hi-Shelf, 12dB Lo-Shelf, Notch
EQ Gain +/15dB, variable in 0.5dB steps
EQ Bandwidth 0.05 to 3.00 octaves, variable in 0.05

steps
EQ freq 15.6 Hz to 16 kHz
Dynamics Digital limiter on all the output
Memories FACTORY PRESETS are 6 + 64

USER PRESETS
Frequency Response 20Hz -20kHz, 0.25dB
Dynamic range >117dB 20Hz to 20kHz
Channel Separation >100dB 20Hz to 20kHz
Distortion (THD) 0.05%, 20Hz to 20kHz
Input Meter -24dB, -18dB, -12dB, -6dB, CLIP

relative to Clip point (+20dBu)

- 3 -

Output Metering -24dB, -12dB, -6dB, LIMIT relative to

limiter threshold setting, CLIP

General

Dimensions 483×44×300 mm
Weight 4.0 Kg
Power supply see label on the unit

- 4 -

3. Schematic Diagram

4.1

- 5 -

4321

+5VD

SD_OUT

QS'

10

QS

9

11

R22

R20

1K2

DELAY

DL42 RED

+5VD +5VD

AR1

4K7*4

78
56
34
12
78
56
34
12

AR4

4K7*4

C4

10U

+5VD

C14

104P

D

IC3A

HCF4094

R18

1K2

1K2

UTILITY

DL41 RED

DL44 RED

R6

10K

R31

10K

QH9QH

IC6A

74HC165D

A11B12C13D14E3F4G5H

SW11

MUTE3

C15

220U

R8

1K

R13

3K9

PRESET

7

SW12

MUTE4

R21

1K2

DL43 RED

SW13

SW14

MUTE5

MUTE6

D04D15D26D37D414D513D612D7

EDIT

SW10

MUTE2

IC1D

89

D
CP
STR

EO

2CI15

S/L1CK

SW9

SW3

MUTE1

ENTER

74HC14D

10

SIN

6

SW8

ESC

1 2 IC1A

2
3
1

15

+5VD

IC1C

74HC14D

10

9

R25

1K2

R26

1K2

MUTE1

DL46 RED

DL45 RED

IC2A

AR2

4K7*4

78
56
34
12
78
56
34
12

AR3

4K7*4

IC1B

74HC14D

74HC14D

5 6

3 4

C

QS'

QS

11

R28

1K2

MUTE2

MUTE3

DL47 RED

7

QH9QH

74HC165D

A11B12C13D14E3F4G5H

SW4

MODE

IC4B

74HC04D

3 4

IC5A

HCF4094

R27

1K2

MUTE4

DL48 RED

SW2

SW6

SW1

GIU

PAG UP

PAG DW

SW7

+5VD

D04D15D26D37D414D513D612D7

R30

R29

1K2

1K2

MUTE5

DL49 RED

DL50 RED

10

2CI15

S/L1CK

SIN

6

SW5

SU

+5VD

30P-ENCODER

D
CP
STR

EO

MUTE6

R7

10K

R24

IC1F

2
3
1

+5VD +5VD

10K

IC4A

74HC04D

IC4C

74HC04D

R3

5K6

74HC14D

12 13

B

15

4148

100K

+5VD

+5VD

5K6

10 11

C8

C9

IC4E

IC4D

IC1E

OUT EN

10U

C17

10K

R19

R14

10K

47P

47P

CLOCK1

1011

74HC04D

89

74HC04D

R1

C1

R2

C2

R12 10R

74HC14D

5K6

103P

5K6

103P

R10 10R

1213

R11 10R

R15 10R

R16 10R

D1

R23

1 2

5 6

R5

C16

C7

CLOCK

C10

IC4F

R17 10R

P80

47P

47P

STROBE LED

47P

74HC04D

Display front board

MAXIFP2.SCH

P90

P80

+5VD

P80

R4

4R7 1/2W

A

P90

CN4

2P2.5

1

2

C18

10U

147

168

168

168

168

P90

IC1G

74HC14D

C3

104P

IC2B

74HC165D

C5

104P

IC6B

74HC165D

C13

104P

IC5B

HCF4094

C12

104P

IC3B

HCF4094

TO DISPLAY

123456789

CN1

CN2*4-2

C6

147

1011121314

D

CN2

CN2*10

TO CPU

123456789

C

1011121314151617181920

B

IC4G

C11

A

104P

74HC04D

104P

1 2 3 4

4321

4.2

- 6 -

168

C20

104P

+5VD

168

C19

104P

D

IC8B

HCF4094BM

IC7B

HCF4094BM

168

C22

+5VD

168

C21

104P

104P

IC10B

HCF4094BM

IC9B

HCF4094BM

C

168

C23

+5VD

104P

IC11B

HCF4094BM

10

QS'

9

IC9A

HCF4094BM

STR

1D2CP3

B

A

DL39

R55

1K2

-12dB

R54

1K2

DL37

QS

D7

11

D6

12

D5

13

D4

14

D3

7

D2

6

D1

5

D0

4

EO

15

R53

R52

R51

R50

R49

R48

1K2

1K2

1K2

1K2

1K2

1K2

DL34

DL40

DL38

DL36

DL33

OUT6

-6dB

OUT6

CLIP

OUT6

LIMIT

OUT6

-24dB

OUT6

-24dB

OUT5

-12dB

OUT5

-6dB

OUT5

10

10

QS'

QS'

9

QS

IC11A

HCF4094BM

STR

1D2CP3

9

QS

IC10A

HCF4094BM

STR

1D2CP3

DL31

R71

1K2

-24dB

DL27

R70

1K2

-12dB

DL23

R69

R68

R67

R66

R65

R64

1K2

1K2

1K2

1K2

1K2

1K2

DL19

DL26

DL22

DL15

DL14

D7

11

D6

12

D5

13

D4

14

D3

7

D2

6

D1

5

D0

4

EO

15

OUT3

-6dB

OUT3

LIMIT

OUT3

-24dB

OUT2

-12dB

OUT2

-6dB

OUT2

LIMIT

OUT2

DL16

R63

OUT3

1K2

DL4

R62

1K2

DL7

R61

1K2

D7

11

D6

12

D5

13

D4

14

D3

7

D2

6

D1

5

D0

4

EO

15

R60

R59

R58

R57

R56

1K2

1K2

1K2

1K2

1K2

DL11

DL12

DL8

DL3 DL5

B

-24dB

A

-12dB

A

-18dB

A

-24dB

B

-18dB

B

-12dB

B

-6dB

B

CLIP

R72

9

10

QS

QS'

IC8A

HCF4094BM

STR

1D2CP3

D7
D6
D5
D4
D3

7

D2

6

D1

5

D0

4

EO

15

0R

9

10

QS

QS'

IC7A

HCF4094BM

STR

1D2CP3

D7
D6
D5
D4
D3

7

D2

6

D1

5

D0

4

EO

15

R47

R46

R45

11
12

R44

13
14

R43

R42

R41

R40

R39

R38

R37

11
12

R36

13
14

R35

R34

R33

R32

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

1K2

DL35

DL32

DL25 DL30

DL29

DL28

DL24

DL18 DL20

DL13

DL17

DL10 DL21

DL9

DL6

DL1 DL2

-24dB

OUT4

-12dB

OUT4

CLIP

OUT5

LIMIT

OUT5

-6dB

OUT4

LIMIT

OUT4

CLIP

OUT4

CLIP

OUT3

-6dB

OUT1

-12dB

OUT1

-24dB

OUT1

CLIP

OUT2

LIMIT

OUT1

CLIP

OUT1

A

-6dB

A

CLIP

CLOCK1

D

1 2 3 4

CLOCK

SD_OUT

OUT EN

STROBE LED

C

B

A

D

4.3

- 7 -

4

321

C

1234567

CS

DATA IN

GND

VCC

CLK

GND

+3.3V

B

DATA OUT

LGND

A

R4

4

VCC

68R

11

IC2C

74LVC125D

12

VCC

GND

GND

GND

MOS_I

MOS_OCSCLK

2

3

4

5

6

7

8

R5

R6

68R

C5

104P

LGND

14

+3.3V

2

4

OUT

IN

IC1

LM117

3

+5VD

7

IC2E

74LVC125D

C3

10U

C4

104P

1

GND

C2

10U

C1

104P

LGND

3

IC2A

74LVC125D

2

68R

6

1

IC2B

74LVC125D

5

+5VD

VCC

1

CN1

CN-2*5

R2

68R

+3.3V

R3

56K

LGND

9

13

IC2D

74LVC125D

+5VD

R1

10K

LGND

9

10

10

8

1 2 34

D

C

B

A

7654321

- 8 -

8

D

C

SD IN

SD CLK

STB LED

D1 LCD

D3 LCD

D5 LCD

D7 LCD

B

4
5
6

DGND DGND DGND

A

+5VD

R104
470R

AR11C 470R

5 6

AR11A 470R

1 2

AR12B 470R
AR12D 470R
AR13C 470R

5 6

AR13A 470R

1 2

AR14C 470R

5 6

IC20

MAX709L-CSA

NC1VCC
NC

RST

GND

NC
NC

NC

+5VD

R76

AR6 4K7*4

AR5 4K7*4

1
2
3
4
5
6
7
8
9
10

1
2
3
4
5
6
7
8

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

IC22A

74HC14DT

C100

10U

DGND

144

IC18F

RED208

+5VD

DGND

10K

AA10
AA11
AA12
AA13
AA14
AA15
AA16
AA17
AA18

TP34

3 4

C102

C97

100N

100N

910

143145

RXP
RXN

MUTE

AR14A 470R
AR11D 470R
AR11B 470R
AR12A 470R

1 2

AR12C 470R

5 6

AR13D 470R
AR13B 470R
AR14D 470R
AR14B 470R

IC22B
74HC14DT

C106
100N

2326

3738

R84

100R

100R

MUTE

4748

R83

AR7

4K7*4

1 2
3 4
5 6
7 8

1 2
3 4
5 6
7 8

1 2
3 4
5 6
7 8

R73
4K7

DGND

CN4

A28b-10B

CN3

A28b-8B

CN5

34

78

A28b-20B

DGND

+5VD

2
7
3
8

1 2

R99
10K

IC18D

MMS-REDLG

147148

C98

100N

+5VD +5VD

146

C99

100N

150

DGND DGND DGND DGND DGND DGND DGND

AA0
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA9
AA10
AA11
AA12
AA13
AA14
AA15
AA16
AA17
AA18

C105

10U

C109
100N

6263

182
181
180
179
178
160
159
158
151
152
153
154
155
156
162
163
164
165
166
167
168
169
170
171

96
67
68
69
70

12

78

34

78

34

78

34

7879

IC18A

RED208

PWM LCD

SD OUT

STB SWT

D0 LCD

D2 LCD

D4 LCD

D6 LCD

E LCDR/W LCD

RS LCD

R98
330R

R97
100K

C108

C111

100N

100N

9293

C104
100N

A_A0
A_A1
A_A2
A_A3
A_A4
A_A5
A_A6
A_A7
A_A8
A_A9
A_A10
A_A11
A_A12
A_A13
A_A14
A_A15
A_A16
A_A17
A_A18
A_A19
A_A20
A_A21
A_A22
A_A23

P23/ALE
P00/D28
P01/D29
P02/D30
P03/D31

D9

RLS4148

C112

1U

C107
100N

107108

MMS-REDLG

RED208

A_LCAS_W0
A_UCAS_W1

DGND

C103
100N

119120

IC18E

141142

IC18G

A_D0
A_D1
A_D2
A_D3
A_D4
A_D5
A_D6
A_D7
A_D8

A_D9
A_D10
A_D11
A_D12
A_D13
A_D14
A_D15

A_WEB

A_DE

A_CS0
A_CS1
A_CS2
A_CS3

P30/A30
P31/A31

P24/ACK

INT0
INT1
INT2
INT3

R101

33K

R102

33K

DGND DGND

IC22C

74HC14DT

5 6

C93

100N

137138

157161

172174

D0

105

D1

106

D2

109

D3

110

D4

111

D5

112

D6

113

D7

114
115

+5VD

116
117
118
121
122
123
124

R90

100R

135
136
139
140

TP33

125
132

R92

133

100R

134
103
104
97

PWM LCD

126
127
128

INTER2

129

IC21A

6

7 4

TRANSCEIVER

MAX485EESA

C115

C116

100N

100N

IC22D
74HC14DT

C92

C89

C110

100N

100N

100N

200208

184185

76 77

130 131

COLLEGARE TRA

PIN 147 E 148

C86

100N

R91
10K

R89

100R

2Re

1

Ro

3

De

Di

IC22E

74HC14

IC22F

74HC14

89

C101

100N

27 28

227

IC14B

AD1892JR

DGND

+5VD

C79

IC9B

AK5383VS

19 18

C37

100N

C34

680P

IC8A

C20

680P

IC4B

C30

680P

IC7A

C16

680P

IC3B

C26

680P

IC6A

C12

680P

IC2B

6

5

6

5

8 7

1716

IC12C

AK4393VF

C38
10U

1

7

1

7

1

7

1

1

C80

100N

DGND

DGND

C60
10U

R66
4K70

R61
10K0

R23
4K70

R27
10K0

R51
4K70

R49
10K0

R16
4K70

R19
10K0

R39
4K70

R37
10K0

R8
4K70

R11
10K0

IC1A

MC33078

IC5A

MC33078

10U

2415

DGND

DGND

DGND

DGND

DGND

DGND

100N

2 1

DGND

DGND

DGND

DGND

DGND

DGND

IC12B

AK4393VF

C53

3222326

IC9C

AK5383VS

DGND

R62
82K0

R26
82K0

R50
82K0

R17
82K0

R38
82K0

R10
82K0

2

3

2

3

C71

C72

10U

100N

+5VA

C68

C56

10U

100N

+5VA

C74

C73

100N

10U

R24

R58

3K90

2K20

C33

2

R59

2N2

2K20

3

C35

680P

R28
2K20

C21

R30

2N2

2K20

C22

680P

R46
2K20

C29

R47

2N2

2K20

C31

680P

R20
2K20

C17

R22

2N2

2K20

C18

680P

R34
2K20

C25

R35

2N2

2K20

C27

680P

R12
2K20

C13

R14

2N2

2K20

C14

680P

C23

10U

6
5

2

3

6

5

2

3

DGNDDGND

6

5

7

IC1B

MC33078

7

IC5B

MC33078

R29
3K90

R15
3K90

R21
3K90

R7
3K90

R13
3K90

MC33078

MC33078

MC33078

MC33078

MC33078

MC33078

IC17A

TP1

D0
D1
D2
D3
D4
D5
D6
D7

1011

1213

R100
100R

DGND+5VD

175

+5VD

C82

100N

13

TP2
TP3
TP4
TP5
TP6
TP7
TP8

R96
4K7

C81
10U

D0

14

D1

15

D2

17

D3

18

D4

19

D5

20

D6

21

D7

TP9

31

WE

TP10

24

OE

TP11

22

CE

+5VD

EN29F040

R95
4K7

IC19A

5

SDL

6

SCL

1

E0

2

E1

3

E2

24LC256-I/SN

DGND DGND

5 6

DGND

IC16A 74HC04D

1 2

XT1

24.576MHZ

C94
15P

DGND DGND

C87
10N

RXP

RXN

1

6

IC13B

HM5118160

37

22

MODE

R80
47K

C96

15P

LT-0806M

2142

A0
A1
A2
A3
A4
A5
A6
A7
A8

A9
A10
A11
A12
A13
A14
A15
A16
A17
A18

IC16D

89

74HC04

IC16C

74HC04

IC16E

1011

74HC04

1213

IC16F

74HC04

TF1

12

C85

100N

12

TP30

11

TP29

10

TP28

9

TP27

8

TP26

7

TP25

6

TP24

5

TP23

27

TP22

26

TP21

23

TP20

25

TP19

4

TP18

28

TP17

29

TP16

3

TP15

2

TP14

30

TP13

1

TP12

7

R79

150R

3 4

IC16B

74HC04D

R81

R77

220R

100R

DGND

R75

100R

4 3

85

IC21B

MAX485EESA

AA0
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA9
AA10
AA11
AA12
AA13
AA14
AA15
AA16
AA17
AA18

+5VD

DGND

IC17B

EN29F040

D4 LCD
D5 LCD
D6 LCD
D7 LCD

E LCD

R/W LCD

RS LCD

SD IN
SD OUT
SD CLK1 2

DGND

21
20
19
18
17
15
16
23
27

1

13

14

C114
100N

3216

R82

150R

+5VD

IC14A AD1892JR

CA
CB
CC
CD
CE
CON/PRO
CSCLK
SYNC
MUTE
PD/RST

RXP

RXN

147

IC15C

74HC74

C91

100N

100

149
183

177
173

83
84
85
86
87
88
89
90
91

64
59
65
60
66
61

98
99

94
95

29

24
25

AR4

100R*4

AR3

100R*4

AR1

100R*4

AR2

100R*4

24LC256-I/SN

2

3

NDSIG

ERROR

U/CBIT

SFCLK

SDATA
LRCLK

IC19B

IC18C

P12/BIR0
P13/BIR1
P14/BIR2
P15/BIR3
P16/BIR4
P17/BIR5
P18/BIR6
P19/BIR7
P20/BIR8

MD0_O
MD0_I
MD1_O
MD1_I
MD2_O
MD2_I

P25/SDI
P26/SDO
P27/SCK

P21/AD0
P22/AD1

ADCIN
TESTE

REFCLK
REFOUT
RST

XTIN
XTOUT

RED208

CCLK

SDI

SDO

QDFS

INT

BCLK

MCLK

C88

100N

84

TP32

D

CLK

CS

1 2

DD0

3 4

DD1

5 6

DD2

7 8

DD3

1 2

DD4

3 4

DD5

5 6

DD6

7 8

DD7

7 8

DD8

5 6

DD9

3 4

DD10

1 2

DD11

1 2

DD12

3 4

DD13

5 6

DD14

7 8

DD15

C83

100N

CK256FS

CK64FS

FSYNC_O

FSYNC_I
P11/CK32
P10/CK32

M4_WS

P28/STB0
P29/STB1

IC15A

4

74HC74D

Q

SD

Q

CD

1

3
2
4
5
6
12
11
10
9
8

26
24
25

28

147

IC16G

74HC04

C84

100U

DAC0
DAC1
DAC2
DAC3
DAC4
DAC5

BB_LE
BB_LA

ADC0
ADC1
ADC2
ADC3

M4_LA

MOD0
MOD1
MOD2
MOD3
MOD4
MOD5
MOD6
MOD7

R72
4K7

R74

100R

R71

100R

C95

100N

5

6

D0 LCD
D1 LCD

R78
220R

+5VD

DGND

21

12
13
14
15
16
17
20
22
176
19
18
82
81

196
197
198
199

195
194
186
187
188
189
190
191
192
193

101
102

74HC14

201
202
203
204
205
206
207

1
2
3
4
5
6
7
8

11

71
72
73
74
75
80

AR8

7 8
5 6
3 4
1 2

100R*4

+5VD

IC15B

74HC74D

12

11

DGND

INTER2

C90
10N

147

IC22G

C113
100N

IC18B

D_D0
D_D1
D_D2
D_D3
D_D4
D_D5
D_D6
D_D7
D_D8
D_D9
D_D10
D_D11
D_D12
D_D13
D_D14
D_D15

P04/D26
P05/D27
P06/D28
P07/D29
P08/D30
P09/D31

RED208

D3 LCD
D2 LCD

STB SWT
STB LED

+5VD

D

CLK

10

SD

CD

13

D_A10
D_A11
D_A12
D_A13
D_A14
D_A15
D_A16
D_A17
D_A18
D_A19

D_CS0
D_CS1

D_CA5

D_WR

DATA OUT1
DATA OUT2
DATA OUT3
BCLK
(3.072MHZ)

(48KHZ)

LRCK

DIGIT IN

RST
SYSCLK

12.288MHZ

9

Q

8

Q

RST
LRCK

DIGIT IN

D_A0
D_A1
D_A2
D_A3
D_A4
D_A5
D_A6
D_A7
D_A8
D_A9

D_OE

7 8

35

5 6

36

3 4

39

1 2

40

1 2

41

3 4

42

5 6

43

7 8

44
45
46
49
50
51
52
53
54
55
56
57
58

30
31
32
34
33

RST
DATA OUT1

DATA OUT2

DATA OUT3

RST
SYSCLK
BCLK
LRCK

AR10

100R*4

R94
100R

R87 100R
R86 100R

R85 100R
R88 100R

100R*4

R93
100R

DA0
DA1
DA2
DA3
DA4
DA5
DA6
DA7

AR9

DA8
DA9

DRAS
DCAS

DOE
DWR

IC12A

3

MCLK

4

PDN

5

BICK

6

SDATA

7

LRCK

+5VD

8

SMUTE

9

DFS

10

DEM0

11

DEM1

12

DIF0

13

DIF1

14

DIF2

26

CKS0

27

CKS1

28

CKS2

25

P/S

AK4393VF

DGND

IC11A

3

MCLK

4

PDN

5

BICK

6

SDATA

7

LRCK

+5VD

8

SMUTE

9

DFS

10

DEM0

11

DEM1

12

DIF0

13

DIF1

14

DIF2

26

CKS0

27

CKS1

28

CKS2

25

P/S

AK4393VF

DGND

IC10A

3

MCLK

4

PDN

5

BICK

6

SDATA

7

LRCK

+5VD

8

SMUTE

9

DFS

10

DEM0

11

DEM1

12

DIF0

13

DIF1

14

DIF2

26

CKS0

27

CKS1

28

CKS2

25

P/S

AK4393VF

DGND

IC9A

10

RST

17

MCLK

14

SCLK

13

LRCK

15

SDATA

16

DGND

FSYNC

12

SMODE1

11

SMODE2

18

DFS

19

HPFE

20

TEST

6

ZCAL

9

CAL

AK5383VS

+5VD

DA0
DA1
DA2
DA3
DA4
DA5
DA6
DA7
DA8
DA9

DWR
DRAS

DCAS
DOE

AOUTL-

AOUTL+

AOUTR-

AOUTR+

AOUTL-

AOUTL+

AOUTR-

AOUTR+

AOUTL-

AOUTL+

AOUTR-

AOUTR+

AINL-

AINL+

AINR-

AINR+

IC13A

17
18
19
20
23
24
25
26

28
11
12
15
13
14
30
31
29

HM5118160ALJ-70

(DRAM 1M*16)

DD0

A0

DD1

A1

DD2

A2

DD3

A3

DD4

A4

DD5

A5

DD6

A6

DD7

A7
A827DD8
A9

DD9

NC

DD10

NC

DD11

NC

DD12

WR

DD13

RAS

DD14

OCAS

DD15
CCAS
OE

C55
10U

22

C54
10U

23

20

C58
10U

21

C57
10U

C49
10U

22

C47
10U

23

20

C52
10U

21

C51
10U

C42
10U

22

C41
10U

23

20

C46
10U

21

C44
10U

5

C59
10N

4

24

C62
10N

25

NC
NC

R60
2K20

R57
2K20

R67
2K20

R63
2K20

R48
2K20

R45
2K20

R56
2K20

R52
2K20

R36
2K20

R33
2K20

R44
2K20

R40
2K20

R31
22R

R32
22R

R68
22R

R69
22R

DD0

2

DD1

3

DD2

4

DD3

5

DD4

7

DD5

8

DD6

9

DD7

10

DD8

33

DD9

34

DD10

35

DD11

36

DD12

38

DD13

39

DD14

40

DD15

41
32
16

R55

3K90

DGND DGND

R65
3K90

DGND DGND

R43
3K90

DGND DGND

R54
3K90

DGND DGND

R70
3K90

R42
3K90

DGND DGND

C9
10U

C10
10U

C24
10U

C77

C78

10U

100N

21

IC11B

AK4393VF

+5VA

C67

C66

C50

100N

21

10U

28

27

R64
10K0

C36
22P

IC8B

MC33078

R25
10K0

C19
22P

IC4A

MC33078

R53
10K0

C32
22P

IC7B

MC33078

R18
10K0

C15
22P

IC3A

MC33078

R41
10K0

C28
22P

IC6B

MC33078

R9
10K0

C11
22P

IC2A

MC33078

19 18

C61

C40

10U

10U

7

1

7

1

7

1

10U

6

5

2
3

6

5

2

3

6

5

2

3

21

1716

IC11C

AK4393VF

C39

100N

C5

10U

DGND

C6

10U

DGND

C4

10U

DGND

C3

10U

DGND

C1

10U

DGND

C2

10U

DGND

C76

100N

R5

10K

R6
10K

R4

10K

R3
10K

R1

10K

R2
10K

C75
10U

21

IC10B

AK4393VF

+5VA

2415

C65

C48

100N

MC33078

MC33078

C64

C45

10U

10U

100N

84

84

IC2C

IC3C

MC33078

84

84

IC7C

IC8C

MC33078

DGND DGND

CN1

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

A28b-14B

19 18

+12V

84

IC1C

MC33078

-12V

84

IC6C

MC33078

+5VD

DGND

+5VA

+12V

DGND

1716

IC10C

AK4393VF

-12V

2415

C8

10U

C7

10U

84

IC5C

MC33078

100N

C70

C69
100N

100N

C43

CN2

6
5
4
3
2
1

6P-2.5

C63
10U

DGND

+12V

84

IC4C

MC33078

-12V

D

C

B

A

1 2 3 4 5 6 78

7654321

4.5

- 9 -

8

AGND

AGND

C25
22P

10 7

DGND

10V/1W

10V/1W

R83

330E

R80
330E

AGND AGND

R77

330E

R74

330E

AGND AGND

R71
330E

R68
330E

AGND AGND

IC10D

MAX202ECPE

R

T

IC10B

MAX202ECPE

1
2
3
4
5

MDI_I

6

MDI_O

7
8

DGND

D6

D5

R81
10K0

R75

10K0

R69

10K0

98

R82

10K0

R76

10K0

R70

10K0

D8

10V/1W

D7

10V/1W

7 8

7 8

7 8

R63
10K0

MC33078

R61
10K0

IC8B

MC33078

R101

330E

R98

330E

R95

330E

R92

330E

R89

330E

R86

330E

1

IC9A

C45
22P

7

AGND AGND

AGND AGND

AGND AGND

C26

10u/16VR768R0

68R0

C24

10u/16V

68R0

68R0

R99
10K0

R93

10K0

R87

10K0

R8

R6

R5

R100
10K0

R94

10K0

R88

10K0

CONNECT TO CN1 CPU BOARD

CN5

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

L18
BLM21

L19
BLM21

L16
BLM21

L17
BLM21

L14
BLM21

L15
BLM21

A28b-14B

S11

1
3
2
4

CN-BAL-MALE

S10

1
3
2
4

CN-BAL-MALE

S9

1
3
2
4

CN-BAL-MALE

AGND

C14
22P

R24

R26

10K0

10K0

MC33078

R29

10K0

MC33078

R19

10K0

MC33078

R22

10K0

MC33078

R12

10K0

MC33078

R15

10K0

MC33078

C15

C10

C11
22P

IC2B

IC4A

22P

IC4B

C12
22P

IC3A

C13
22P

IC3B

22P

IC2A

C36
100u

1

C35
100u

7

C34

100u

1

C33

100u

7

C32
100u

1

C31
100u

7

2

R27

10K0

OUT1

S2

OUT2

OUT3

AGND

AGND

AGND

AGND

AGND

AGND

10K0

10K0

10K0

10K0

R14

10K0

R30
10K0

R28

10K0

R17

10K0

R20

R23

R21

R10
10K0

R13

R16
10K0

3

6
5

2
3

6
5

2
3

6
5

AGND

+12V

RL6
RY-12W-K

1 2

3 4

5 6

7 8

RLN

+12V

RL5
RY-12W-K

1 2

3 4

5 6

7 8

RLN

+12V

RL4
RY-12W-K

1 2

3 4

5 6

7 8

RLN

R84

68R0

R25
10K0

R79

68R0

R55
10K0

R78
68R0

10K0

R73
68R0

R54
10K0

R72
68R0

R11
10K0

R67

68R0

10K0

CN4

A28b-8B

MUTE

R18

R53

2
3

6
5

5 6

5 6

5 6

IC10C

MAX202ECPE

11 14

IC10A

MAX202ECPE

DGND

D2

6.2V/1W
D1

6.2V/1W

+12V

1 2

3 4

+12V

1 2

3 4

+12V

1 2

3 4

T

D3

6.2V/1W
D4

6.2V/1W

RL3
RY-12W-K

RLN

RL2
RY-12W-K

RLN

RL1
RY-12W-K

RLN

R

R107
10E 1%

R106
10E 1%

1312

L12

BLM21

L13

BLM21

L10

BLM21

L11

BLM21

L8

BLM21

L9

BLM21

C52
100N

L5
BLM21

L6
BLM21

L7

BLM21

CN6
D-SUB-9P

4
2
3
1

S4

1
3
2
4

CN-BAL-MALE

1
3
2
4

S8

1
3
2
4

CN-BAL-MALE

S7

1
3
2
4

CN-BAL-MALE

S6

1
3
2
4

CN-BAL-MALE

1

6

2

7

3

8

4

9

5

S3
BAL(F)

DIGITAL INPUT

RS 485 LINK

S5
BAL(F)

RS 485

C48

100N

2.5MINI-2P

OUT4

S2

R2
1K

MUTE

R4
10K

CN3

1
2

CN2

6
5
4
3
2
1

2.5-6P
R1

0E0

DGND

13166

IC10E

MAX202ECPE

DGND

C1

1000u/6.3V

+12V

R3
1K

TR1

BC847

15

DGND

R9
10K

45

2

C2

100N

C4
100N

C3
100NC510u

+12V

1N4002

C6
10u

D9

TR2

BC327

IC1
7805

C47
100N

AGND

C51

100N

+12V

-12V

C46
100N

C7

1000u/25V

C8

1000u/25V

RLN

C50
100N

C29
100N

C49
100N

D

CN1

1
2
3
4
5
6

C

S1

S1

S2

OUT5

B

+12V

-12V

+12V

-12V

84

IC9C

MC33078

84

IC4C

MC33078

84

IC8C

MC33078

84

IC3C

MC33078

84

IC7C

MC33078

84

IC2C

MC33078

84

IC6C

MC33078

C40
100N

C39
10N

C30

10u/16V

C9

10u/16V

84

IC5C

MC33078

AGND

OUT6

A

L4
BLM21

L3

BLM21

L2

BLM21

L1

BLM21

+12V

-12V

+12V

-12V

D17
4148

D16
4148

D13
4148

D12
4148

AGND

D14
4148

D15
4148

D10
4148

D11
4148

AGND

AGND

AGND

AGND

AGND

R105
15K0

R103

15K0

R49
10K0

R41

10K0

R42

10K0

10K0

10K0

R66
15K0

R104
15K0

R45

10K0

R48

10K0

R51

10K0

R38

10K0

R44

10K0

R31
10K0

R34

R37
10K0

R35

S13

X1
X3

X2
1
2
3
4
5
6

IN LEFT

D

S12

X1
X3

X2
1
2
3
4
5
6

IN RIGHT

C

B

A

6
5

AGND

2
3

AGND

2
3

6
5

2
3

6
5

2
3

6
5

R64
1K80

R60
1K80

R65
1K80

R59

1K80

R47

10K0

R50
10K0

10K0

R43

10K0

R40

C27
22P

IC9B

MC33078

C22

22P

IC8A

MC33078

C20
22P

IC7A

MC33078

C21

22P

IC7B

MC33078

C18

22P

IC6A

MC33078

C19
22P

IC6B

MC33078

C16
22P

R33

10K0

IC5A

MC33078

C17
22P

R36
10K0

IC5B

MC33078

C28

10u/16V

7

C23

10u/16V

1

C44

100u

1

C43
100u

7

C42
100u

1

C41

100u

7

C38
100u

1

C37
100u

7

10K0

10K0

68R0

10K0

68R0

10K0

10K0

68R0

R52

R62

R102

68R0

R46

10K0

R97
68R0

R58
10K0

R96

R39

R91

R57

R90

68R0

R32

R85

R56

10K0

1 2 3 4 5 6 78