Alto GATE Schematic

Service Manual

Model: ALTO GATE

AUDIO INTERACTIVE / QUAD EXPANDER / GATE

www.altoproaudio.com

Version: 1.1

CONTENTS

1. Specification

2. Block Diagram

3. Schematic Diagram

4. Printed Circuit Board

5. Wiring Diagram

6. Test Procedure

7. Electrical Parts List

8. Exploded Views & Mechanical Parts List

9. Notes

1. SPECIFICATIONS

)

SPECIFICATIONS FRO ALTO GATE

AUDIO INPUT

Connectors
Type
Max. Input Level
Impedance
CMRR

AUDIO OUTPUT

Connectors XLR and 1/4 jack
Type Electronically servo-balanced output stage
Max. Output Level +21 dBu balanced and unbalanced
Impedance 60 Ohm balanced , 30 Ohm unbalanced

FUNCTION SWITCHES

Monitor monitors the side-chain key signal
Couple activates FlexLink function
Mode gate/expander switch
Filter activates the side-chain Filter

INDICATORS

Gain Reduction 8-segment LED display : 1/3/6/10/15/20/30/40 dB
" - " indicator signal is above threshold
" Hold " indicator signal is reaches threshold
" + " indicator signal is below threshold
LED indicator for each function switch

XLR and 1/4 jack
RF filtered , servo-balanced input
+21 dBu balanced and unbalanced
50kOhm balanced , 25kOhm unbalanced
typ. 40 dB, >55dB@1KHz

GATE SECTION

Type UTR ( Ultra Transient Response ) gate
Range variable ( 0 to -80 dB )
Threshold variable ( BYPASS to +10dBu )
Attack program dependent
Hold variable ( 0 to 4sec )
Release variable ( 0.05 to 4 sec )

EXPANDER SECTION

Type IRC ( Interactive Ratio Control ) expander
Attack program dependent
Ratio variable ( 1:1 to 1:4 )

PARAMETRIC SC FILITER

Frequency variable ( 100 Hz to 10KHz )
Bandwidth variable ( 2.3 to 0.7 Oct. )

SYSTEM SPECIFICATIONS

Frequency Respone 10Hz to 100KHz +/- 3 dB ( RANGE TO - 80 dB
Noise >90dBu , unweighted , 22Hz to 22KHz
THD 0.02% typ. @+4dBu , 1KHz , GAIN 1
IMD 0.01% typ. SMPTE
Crosstalk <-100 dB , 22Hz to 22KHz

POWER SUPPLY

AC 95-120 Vac~60Hz Fuse : 400mA ( slow blow )
AC 210-240 Vac~50Hz Fuse : 200mA ( slow blow )

POWER CONSUMPTION

18 Watts

DIMENSIONS

483(W) * 194.5(D) * 44(H) mm ( 19 * 7.7 * 1.7 )

WEIGHT

3.3kg

D

2. Block Diagram

6

C

B

A

OUTPUT 1

4 OUTPUT 1

54321

3c5e1a

4d

2b

OUTPUT1

PHONEJACK5 (5-PIN)

CN-BAL-MALE

213

GAIN REDUCTION

OUTPUT 2

CN-BAL-MALE

OUTPUT1

213

4 OUTPUT 2

SGND

PHONEJACK5 (5-PIN)

3c5e1a

4d

2b

RANGE/RADIO

GAIN REDUCTION

OUTPUT 3

4 OUTPUT 3

SGND

3c5e1a

4d

2b

OUTPUT1

PHONEJACK5 (5-PIN)

CN-BAL-MALE

213

GAIN REDUCTION

OUTPUT 4

4 OUTPUT 4

SGND

3c5e1a

4d

2b

SGND

OUTPUT1

PHONEJACK5 (5-PIN)

CN-BAL-MALE

213

GAIN REDUCTION

BLOCK DIAGRAM

VCA

MON.

EXPANDER/GATE RANGE/RADIOPARAMETRIC SC FILTER

CHANNEL 2

213

4

INPUT1

CN-BAL-FEMALE

3c5e1a4d2b

SGND

INPUT1

PHONEJACK5 (5-PIN)

INPUT 1

MON.

COUPLE

SGND

INPUT2

CN-BAL-FEMALE

VCA

MON.

EXPANDER/GATE PARAMETRIC SC FILTER

CHANNEL 3

COUPLE

213

4

3c5e1a4d2b

SGND

INPUT2

PHONEJACK5 (5-PIN)

SGND

INPUT 2

EXPANDER/GATE RANGE/RADIOPARAMETRIC SC FILTER

213

4

INPUT3

CN-BAL-FEMALE

INPUT 3

VCA

VCA

MON.

EXPANDER/GATE RANGE/RADIOPARAMETRIC SC FILTER

CHANNEL 4

COUPLE

3c5e1a4d2b

SGND

INPUT3

PHONEJACK5 (5-PIN)

213

4

SGND

INPUT4

CN-BAL-FEMALE

3c5e1a4d2b

SGND

INPUT4

PHONEJACK5 (5-PIN)

SGND

INPUT 4

1 2 3 4 56

D

C

B

A

7654321

3. Schematic Diagram

8

D

SW6A
SC_FILTERC10.33uF/50V

C

SW5A
MON

B

CH1_IN

BANDWIDTH

A

R213
15K0

R214
39K2

G1

R225
1K00

R139
2K00

R202
4K02

R204
4K02

R238
4K99

R239
4K99

R256
10K0

R257
10K0

R264
28K0

+15V

G1

-15V

LED2
YEL

LED18
RED

LED10
GR

+15V

R111
30K9

R110

47K5

11
10

9

8

7

6

5
4

11
10

9
8

7
6

5
4

Sheet
Drawn By:

R221
560R 1/4W

TR2
HR

SW5B
MON

4
5
6

SW6B
SC_FILTER

4
5

6

SW7B
MODE

4
5
6

-15V

IC10D
LM339

IC10C
LM339

IC10B
LM339

IC10A
LM339

IC11D
LM339

IC11C
LM339

IC11B
LM339

IC11A
LM339

R268
47R0

RevisionModel No:

P

P

P

R82

1.2K 1/4W

TR13
HR

13

LED19
RED

14

LED20
RED

1

LED25
RED

2

LED26
RED

13

LED27
RED

14

LED28
RED

1

LED29
RED

2

LED30
RED

G1

-15V

VER030505

51of

M. J. YANG

C31
47uF/25V

D

C

B

A

+15V

2

R3

10K0

-15V

R149
3K01

10K0

R157

3K32

3

1

R2

R129

390R 5%

R133

680R 5%

R161

120K 5%

G1

IC5E
TL064

VR1
A1M

G1

C9

4.7uF/100V

G1

9

10

D3

4148

411

R93
549K

R81

475R

9
8

R137

2K00

5
6

R138
2K00

G1

R169

100K

IC4C

TL064

R165

200R

4148

2
3

TL064

R17

C49

10K0

47N

G1

312

IC2E
LM339

IC2C

LM339

IC4B

TL064

D4

4148

D6

4148

8

D5

1

1

2

IC4A

3

VR3

A1M

RELEASE

14

IC10E
LM339

4148

IC3B
TL064

HOLD

IC2B

LM339

1

D1

D2

4148

7

411

IC4E
TL064

+15V

R61

IC2A
LM339

4
5

R49

IC3D

12
13

R54
47K5

8 7

1

CH1_IN

2
3

CH1_OUT_C

1

CH1_IN_R

2

CH1_OUT_E

3

CH1_OUT_P

R177

51K1

C29

47uF/25V

1 2 3 4 5 6 78

VR17
C500K

R248
6K34

R1

10K0

2
3

G1

1

3
2

2

3

G1

R178

51K1

R13

10K0

R14
10K0

6

IC1A
TL064

C19
20P

IC16C

CA3086

IC3A
TL064

11 10

TL064

G1

R53
47K5

9

CA3086

1

CN2
CON12

1
2
3
4
5
6
7
8

9
10
11
12

1

1

R15

1K00

IC16B

CA3086

5 3

14

4

10M0

1 3

IC16D

VR21A
E100K

2

2

CH3_IN
CH3_CTL
CH3_IN_R
CH3_OUT_E

CH4_IN
CH4_CTL
CH4_IN_R
CH4_OUT_E

G3
G4

C41
15N

9

10

G1

FREQUENCY

R65

CA3086

R73

2M7

14 13

IC16A

3

G1

IC1C
TL064

G1

C5
1uF/50V

6

9

R97

R89

5K62

2M21

-15V

CH1_IN
CH1_CTL
CH1_IN_R
CH1_OUT_E

CH2_IN
CH2_CTL
CH2_IN_R
CH2_OUT_E

G1
G2

C30
47uF/25V

14

IC1D

TL064

IC1B
TL064

7

IC3C
TL064

-15V

IC16E

CA3086

R66
10M0

12

-15V

VR9
W50K

+15V

3

1

-15V

R77

549K

10

2

THRESHOLD

CN1
CON12

1
2
3
4

-15V +15V

5

8

VR21B
E100K

5
6
7
8

9
10
11
12

C20
20P

R115

20K0

R16

G1

10K0

13
12

C42
15N

R227

1K00

6

4

5

G1

G1

R45
47R0

G1

R105

1K50

G1
8

CH1_OUT_C

CH1_OUT_P

R116
20K0

411

IC1E
TL064

100K

2

C13

0.47uF/50V

6
5

IC3E
TL064

51K1

G1

R109

20K0

411

6
7

+15V

R101

51K1

IC2D

LM339

10

R4

11

10K0

7

R173

51K1

13

12

G1

R5
10K0

TR1
HR

G1

312

+15V G1

IC11E
LM339

-15V

312

R174

51K1

IC4D

TL064

R189
100K

13

-15V-15V

D9

+15V

VSS VEE

C17

10N

R193
100K

14

LINK-CH1

16

VDD

8

7

RANGE

2

R194

100K

IC14B
HEF4053

G1

3

1

12
13
14
15

1
2
4

5

G1

VR13
A5K

Za
Ya1
Ya0
Zb
Yb1
Yb0
Zc
Yc13E
Yc0

CH1_CTL

2
3

R272
2M21

-15V

IC5A

TL064

D7
4148

IC14A
HEF4053

11

Sa

10

Sb

9

Sc

6

-15V

R201

(3K92)

ZD1
2V7

D8
4148

LED1
YEL

LED9
GR

D9
4148

D9

R228

1K00

TR9

BR

IC5B
TL064

1

5
6

R252
36K0

G1

Titel

Size

A3

Date:
File:

15-May-2003
FP_CH1.Sch

C53
100N

+15V

-15V

7

1
2
3

G1

LED17

RED

D10
4148

GATEFP

SW7A
MODE

R6

10K0

R150

(3K01)

G1

ALTO GATE

7654321

8

+15V

2

R25

10K0

-15V

R153

3K01

R24
10K0

R131
390R 5%

R135
680R 5%

R159

3K32

IC9E
TL064

3

1

R163

120K 5%

G2

411

VR5
A1M

G2

C11

4.7uF/100V

G2

9

10

D24
4148

G2

2
3

R85

475R

R143
2K00

IC12E
LM339

C51
47N

R144
2K00

312

R167

R27

10K0

5
6

G2

R171
100K

IC9C

TL064

200R

TL064

R95
549K

9
8

IC7C

LM339

IC9B

TL064

D25
4148

8

D27

4148

D26
4148

IC9A

1

2

RELEASE

312

IC13E
LM339

14

1

VR6

A1M

3

+15V

R63

IC7A

51K1

LM339

4

5

D

R47

R127

20K0

G2
8

47R0

G2

R107
1K50

C35
47uF/25V

14

7

IC17B

CA3086

5 3

14

4

10M0

1 3

IC17D

1

1

R41

1K00

R69

2

CA3086

VR23A
E100K

R75
2M7

14 13

IC17A

G2

C7
1uF/50V

G2

C45
15N

2

9

3

10

G2

FREQUENCY

12

-15V

IC17E

CA3086

-15V

IC6C
TL064

R70

10M0

6

-15V
1

3

+15V

2

R80

549K

VR12
W50K

THRESHOLD

G2

5

8

VR23B
E100K

4

R42
10K0

R231
1K00

10

9

-15V

13
12

6
5

R91
2M21

C46
15N

G2

C27
20P

R99

5K62

IC6D

TL064

IC8C

TL064

IC6B
TL064

G2

R182

51K1

R39

R40

10K0

1

10K0

C26
20P

9

IC6A
TL064

IC8D
TL064

R57
47K5

CA3086

12
13

R58
47K5

8 7

SW2A
SC_FILTER

SW1A
MON

1
2
3

1

2
3

C

B

BANDWIDTH

A

C3

0.33uF/50V

CH2_IN

CH2_OUT_C

CH2_IN_R
CH2_OUT_E

CH2_OUT_P

CH2_IN

1 2 3 4 5 6 78

R23
10K0

R181

51K1

VR19
C500K

R251
6K34

C37

47uF/25V

2
3

G2

IC17C

6

CA3086

IC8A
TL064

1

3
2

2

3

G2

11 10

R51

100K

G2

2

C15

0.47uF/50V

6
5

CH2_OUT_C

CH2_OUT_P

R128
20K0

411

IC6E
TL064

G2

6
7

R119

20K0

IC8B

TL064

IC7B
LM339

D22

4148

IC8E
TL064

HOLD

1

4148

7

411

D23

+15V

R103

51K1

R26
10K0

7

R183

51K1

13

12

G2

R28
10K0

TR5

HR

G2

+15V G2

312

IC7E
LM339

-15V

IC7D

LM339

10
11

R184

51K1

R191
100K

IC9D

TL064

13

-15V-15V

D30

14

+15V

LINK-CH1
LINK-CH2

16

VDD

VSS VEE

8

7

C23
10N

R197
100K

SW4A
COU

2

IC15B
HEF4053

RANGE

G2

3

1

12
13
14
15

1
2
4

5

9

1

10

2
3

R198
100K

G2

VR15
A5K

Za
Ya1
Ya0
Zb
Yb1
Yb0
Zc
Yc13E
Yc0

CH2_CTL

-15V

IC5C

TL064

R273
2M21

LED13

GR
D30

4148

D30

R232
1K00

ZD3
2V7

D29
4148

12
13

D28
4148

IC15A
HEF4053

Sa

Sb
Sc

LED5

YEL

8

G2

Titel

Size

Date:
File:

-15V

R254

36K0

11
10
9
6

TR11

A3

IC5D
TL064

BR

R207

(3K92)

-15V

C54
100N

+15V

LED38

RED

D31

4148

14

15-May-2003
FP_CH2.Sch

1
2
3

G2

SW4B
COU

SW3A
MODE

G2

GATEFP

R242

4.7K 1/4W

P

R29
10K0

R154

(3K01)

ALTO GATE

+15V

4
5

6

R217
15K0

R218
39K2

D32
4148

G2

R233
1K00

R145
2K00

R208
4K02

R209
4K02

R243
4K99

R244
4K99

R261
10K0

R262
10K0

R266
28K0

+15V

G2

-15V

-15V

LED6
YEL

LED39
RED

LED40
RED

LED14
GR

R121
30K9

R120
47K5

11
10

11
10

Sheet
Drawn By:

9

8

7

6

5
4

9
8

7
6

5
4

+15V

TR6
HR

-15V

R223
560R 1/4W

SW1B
MON

4
5
6

SW2B
SC_FILTER

4
5

6

SW3B
MODE

4
5
6

IC12D
LM339

IC12C
LM339

IC12B
LM339

IC12A
LM339

IC13D
LM339

IC13C
LM339

IC13B
LM339

IC13A
LM339

RevisionModel No:

P

P

P

R86

1.2K 1/4W

TR15
HR

13

LED41
RED

14

LED42
RED

1

LED43
RED

2

LED44
RED

13

LED45
RED

14

LED55
RED

1

LED56
RED

2

LED57
RED

R270
47R0

G2

-15V

VER030505

52of

M. J. YANG

C38
47uF/25V

D

C

B

A

D

C

SW9A
SC_FILTERC20.33uF/50V

SW8A
MON

B

BANDWIDTH

A

9

8

7

6

5
4

9
8

7
6

5
4

+15V

8

R222
560R 1/4W

TR4
HR

SW8B
MON

4
5
6

SW9B
SC_FILTER

4
5

6

SW10B
MODE

4
5
6

-15V

IC33D
LM339

13

IC33C
LM339

14

IC33B
LM339

IC33A
LM339

IC34D
LM339

13

IC34C
LM339

14

IC34B
LM339

IC34A
LM339

R269
47R0

-15V

RevisionModel No:

M. J . YANG

P

P

P

R84

1.2K 1/4W

TR14
HR

1

2

1

2

CER030505

53of

LED24
RED

LED31
RED

LED32
RED

LED33
RED

LED34
RED

LED35
RED

LED36
RED

LED37
RED

G3

C34
47uF/25V

D

C

B

A

7654321

+15V

+15V

10K0

411

IC30E
TL064

2

R9

10K0

-15V

R151

3K01

R8

3

1

R130

390R 5%

R134
680R 5%

120K 5%

R158

3K32

VR2

A1M

G3

C10

4.7uF/100V

G3

R162

D13

4148

G3

IC28E
LM339

R94

549K

R83

475R

9

8

R140

2K00

5
6

R141
2K00

G3

9

10

IC30C
TL064

R166

200R

2
3

R22
10K0

C50
47N

G3

312

R170
100K

IC30A
TL064

IC33E
LM339

IC30B

TL064

D14

4148

D15
4148

312

14

IC28C

LM339

8

D16

4148

1

2

RELEASE

+15V

R62

IC28A

51K1

LM339

4

5

R46

G3

G3
8

C33

47uF/25V

14

7

47R0

R106

1K50

G3

IC31B

IC29D

12
13

G3

R56
47K5

8 7

IC31C

1

CH3_IN

2
3

CH3_OUT_C

1

CH3_IN_R

2

CH3_OUT_E

3

CH3_OUT_P

CH3_IN

1 2 3 4 5 6 78

R179

51K1

C32

47uF/25V

R7

10K0

VR18
C500K

R249
6K34

G3

CA3086

6
2
3

G3

1

3

IC29A
TL064

R180
51K1

3
2

2

R18
10K0

R19
10K0

R55

47K5

11 10

CA3086

9

1

IC27A
TL064

1

R20

1K00

C21
20P

CA3086

TL064

5 3

14

4

R67
10M0

1 3

IC31D

1

VR22A
E100K

R74
2M7

14 13

IC31A

CA3086

2

2

G3

C6
1uF/50V

G3

C43
15N

9

3

10

G3

FREQUENCY

12

IC27C
TL064

-15V

IC31E

CA3086

-15V

6

-15V
1

R68

10M0

VR10

W50K

3

+15V

2

THRESHOLD

G3

5

8

VR22B
E100K

R229

1K00

4

R78
549K

R21
10K0

10

13
12

9

-15V

6
5

G3

C44
15N

R90
2M21

R117

20K0

IC29C
TL064

R98
5K62

C22

IC27B
TL064

20P

IC27D
TL064

R50

100K

6
5

CH3_OUT_C

CH3_OUT_P

R118
20K0

411

IC27E
TL064

2

G3

C14

0.47uF/50V

R112

20K0

6
7

IC29B

TL064

411

IC29E
TL064

IC28B
LM339

D11
4148

HOLD

1

D12
4148

7

+15V

R102

51K1

10

R10

11

10K0

7

R175

51K1

13
12

G3

R11
10K0

TR3

HR

1

VR4

A1M

G3

3

+15V G3

312

IC34E
LM339

-15V

IC28D
LM339

D19

R176

51K1

IC30D
TL064

R190
100K

LINK-CH2
LINK-CH3

16

VDD

VSS VEE

8

7

13

-15V-15V

+15V

C18
10N

100K

14

SW11A
COU

IC32B
HEF4053

R195

RANGE

2

1
2
3

R215
15K0

R216
39K2

+15V

R237

4.7K 1/4W

SW11B

-15V

C55
100N

+15V

RED

D20

4148

7

15-May-2003
FP_CH3.Sch

COU

1
2
3

G3

G3

LED21

SW10A
MODE

GATEFP

G3

3

VR14

A5K

1

12
13
14
15

1
2
4

5

2
3

G3

IC32A
HEF4053

CH3_CTL

R196
100K

-15V

D17
4148

Za
Ya1
Ya0
Zb
Yb1
Yb0
Zc
Yc13E
Yc0

ZD2
2V7

D18

4148

YEL

LED11

GR

D19
4148

D19

IC22A

TL064

5
6

R274
2M21

R230

1K00

Sa
Sb
Sc

LED3

G3

1

-15V

R253
36K0

11
10
9
6

TR10
BR

R203

(3K92)

IC22B
TL064

Titel

Size

A3

Date:
File:

4
5
6

P

R12
10K0

R152

(3K01)

ALTO GATE

D21
4148

G3

R226
1K00

R142
2K00

R205
4K02

R206
4K02

R240
4K99

R241
4K99

R258
10K0

R259
10K0

R265
28K0

-15V

LED22
RED

-15V

G3

LED4
YEL

LED23
RED

LED12
GR

R114
30K9

R113
47K5

11
10

11
10

Sheet
Drawn By:

7654321

+15V

8

D

C

SW13A
SC_FILTERC40.33uF/50V

SW12A
MON

B

BANDWIDTH

A

11
10

11
10

9
8

7
6

5
4

9

8

7
6

5
4

LED8
YEL

LED48
RED

LED16
GR

+15V

TR8
HR

-15V

IC24D
LM339

IC24C
LM339

IC24B
LM339

IC24A
LM339

IC25D
LM339

IC25C
LM339

IC25B
LM339

IC25A
LM339

R271
47R0

RevisionModel No:

R224
560R 1/4W

4
5
6

4
5
6

4
5

6

SW12B
MON

P

SW13B
SC_FILTER

P

SW14B
MODE

P

R88

1.2K 1/4W

TR16
HR

13

LED49
RED

14

LED50
RED

1

LED51
RED

2

LED52
RED

13

LED53
RED

14

LED54
RED

1

LED58
RED

2

LED59
RED

G4

-15V

VER030505

54of

M. J. YANG

C40
47uF/25V

D

C

B

A

+15V

+15V

R64

IC19A

51K1

LM339

4

5

47R0

IC20C
TL064

R100

5K62

G4

8

C36
47uF/25V

14

7

G4

G4

IC20D

G4

IC18A
TL064

C24

20P

TL064

R59
47K5

IC26D

CA3086

9

1

1

R32

1K00

12
13

R60

47K5

8 7

1

CH4_IN

2
3

CH4_OUT_C

1

CH4_IN_R

2

CH4_OUT_E

3

CH4_OUT_P

CH4_IN

1 2 3 4 5 6 78

R185

51K1

VR20
C500K

R250
6K34

C39

47uF/25V

R30
10K0

2
3

G4

1

3

G4

11 10

IC26C

6

CA3086

IC20A
TL064

R186

51K1

3

2

2

R31

10K0

R43

10K0

IC26B

CA3086

5 3

14

4

R71

10M0

1 3

1

14 13

IC26A

CA3086

2

C47
15N

2

VR24A

10

E100K

R76

-15V

2M7

IC26E

CA3086

R72
10M0

12

G4

C8

-15V

1uF/50V

G4

IC18C

9

3

TL064

8

6

G4

FREQUENCY

-15V
1

VR11
W50K

3

+15V

THRESHOLD

G4

15N

R234

4

VR24B
E100K

5

2

549K

R44
10K0

C48

1K00

R79

10

9

R92
2M21

-15V

C28

20P

R123
20K0

13
12

IC18D
TL064

IC18B

6

TL064

5

G4

R52

100K

R48

R108
1K50

CH4_OUT_C

CH4_OUT_P

R124
20K0

411

IC18E
TL064

2

C16

0.47uF/50V

6
5

G4

R122

6
7

20K0

IC20E
TL064

HOLD

IC19B
LM339

1

D33

4148

D34
4148

7

IC20B
TL064

411

IC21E
TL064

3

VR7

2

A1M

1

C12

4.7uF/100V

R136
680R 5%

R164

120K 5%

D35
4148

G4

IC22E
TL064

R87

475R

G4

R146
2K00

G4

G4

9

10

2
3

C52
47N

G4

411

R33

10K0

R34
10K0

R132

390R 5%

-15V

R155

3K01

R160

3K32

411

R147
2K00

R36
10K0

R172
100K

IC21C

TL064

R168
200R

IC21A

TL064

IC19E
LM339

R96

549K

9
8

IC19C

LM339

IC21B

TL064

5
6

D38
4148

8

D37

4148

2

RELEASE

312

D36

4148

1

14

1

VR8

3

A1M

IC24E
LM339

R187

51K1

R37
10K0

312

TR7
HR

G4

R35
10K0

R104

51K1

7

13
12

+15V

G4

IC19D

LM339

10
11

13

-15V-15V

D41

R188

51K1

IC21D

TL064

R192

+15V

100K

LINK-CH3

+15V G4

312

IC25E
LM339

-15V

R199

100K

14

SW15A
COU

VSS VEE

8

C25
10N

16

VDD

Titel

2

7

RANGE

G4

3

1

12
13
14
15

1

10

2
3

G4

IC23B
HEF4053

VR16
A5K

1
2
4

5

9

R200
100K

-15V

Za
Ya1
Ya0
Zb
Yb1
Yb0
Zc
Yc13E
Yc0

LED15

GR

D41
4148

D41

CH4_CTL

IC22C
TL064

R275

2M21

R235
1K00

ZD4
2V7

D40
4148

12
13

D39
4148

LED7
YEL

Sa
Sb
Sc

G4

IC23A
HEF4053

-15V

8

Size

Date:
File:

R255
36K0

A3

11

10
9
6

TR12

(3K92)

BR

IC22D
TL064

+15V

R210

SW15B
COU

SW14A

-15V

MODE

1

2

C56

3

100N

G4

G4

LED46

RED

D42

4148

14

GATEFP

15-May-2003
FP_CH4.Sch

+15V

R245

4.7K 1/4W

P

R38
10K0

R156

(3K01)

ALTO GATE

R219
15K0

R220
39K2

G4

LED47
RED

4
5
6

-15V

D43

4148

R126
30K9

G4

R125

R236

47K5

1K00

R148
2K00

R211
4K02

R212
4K02

R246
4K99

R247
4K99

R260
10K0

R263
10K0

R267
28K0

-15V

Sheet
Drawn By:

7654321

C15
10P

R7

10K0

C14
10P

D

PJ1

PHONEJACK5 (5-PIN)

SGND

4

CN4

CN-BAL-FEMALE

2
3
1

R1

10K0

3c
4d
2b
1a

R2

10K0

5e

C1
47PC247P

10K0

10K0

R3

R4

R29
20K0

R30
20K0

C13
10P

IC3A
4580

C25
47uF/25V

1

2

3

CH1_IN

SGNDSGND

C17
10P

R33

R32

20K0

R35

20K0

20K0

C16

R36
20K0

C19
10P

C27

IC6A
4580

47uF/25V

1

2
3

CH2_IN

10P

C20
10P

IC9A

2

3

4580

CH3_IN

47uF/25V

1

C29

R8
10K0

3c

C

PJ3

PHONEJACK5 (5-PIN)

4d
2b
1a

R9

10K0

5e

SGND

4

CN5

CN-BAL-FEMALE

2
3
1

SGND

R15
10K0

3c

SGND

4
2
3
1

4d
2b
1a

R16

10K0

5e

PJ5

PHONEJACK5 (5-PIN)

B

CN6

CN-BAL-FEMALE

R10

10K0

R11

10K0

C4

C5

47P

47P

SGND

R17

10K0

R18

10K0

C7

C8
47P

47P

SGNDSGND

C23
10P

R38
20K0

R39

20K0

C22
10P

C31

IC12A
4580

47uF/25V

1

2
3

CH4_IN

R22
10K0

PJ7

PHONEJACK5 (5-PIN)

3c
4d
2b
1a

R23
10K0

5e

SGND

4

CN7

CN-BAL-FEMALE

A

2
3
1

SGND

C10

R25
10K0

R24

10K0

C11

47P

47P

SGND

+15V

73

R5

V+

12K1

EC-

18

-IN

SYM

EC+

GND

V-

R41

4K75

624

5

-15V

R45
200R

CH1_CTL

+15V

73

R12

V+

12K1

EC-

18

-IN

SYM

EC+

GND

V-

R42

4K75

5

624

-15V

R46

200R

CH2_CTL

+15V

73

R19

V+

12K1

EC-

18

-IN

SYM

EC+

GND

V-

R43

4K75

5

624

-15V

R47

200R

CH3_CTL

+15V

73

R26

V+

12K1

EC-

18

-IN

SYM

EC+

GND

R44

V-

4K75

5

624

-15V

R48

200R

CH4_CTL

THAT2150A

OUT

R49

47R

THAT2150A

OUT

R50
47R

THAT2150A

OUT

R51

47R

THAT2150A

OUT

R52
47R

IC4

IC7

IC10

IC13

6
5

R53

150K 5%

6
5

R54
150K 5%

6
5

R55
150K 5%

6
5

R56

150K 5%

+15V

-15V

+15V

-15V

+15V

-15V

+15V

-15V

C3
47P

47P

C12

2
3

R61

R57

12K1

IC3B
4580

VR1

50K

C6
47P

IC6B
4580

50K

C9

IC9B
4580

VR3

47P

IC12B
4580

VR4

50K

VR2

50K

7

20K0

12K1

7

R34

20K0

12K1

7

R37
20K0

7

R40

20K0

R31

R58

R59

R60

12K1

C26

47uF/25V

C28

47uF/25V

C30

47uF/25V

C32

47uF/25V

+15V

CH4_IN_R

-15V

CH1_IN
CH1_CTL
CH1_IN_R
CH1_OUT_E

CH2_IN
CH2_CTL
CH2_IN_R
CH2_OUT_E

CH3_IN
CH3_CTL
CH3_IN_R
CH3_OUT_E

CH4_IN
CH4_CTL
CH4_IN_R
CH4_OUT_E

CN2

CN2.0-12P-180

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

CN3

CN2.0-12P-180

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

CH1_OUT_ECH1_IN_R

CH2_OUT_ECH2_IN_R

CH3_OUT_ECH3_IN_R

CH4_OUT_E

3K16

10K0

R69

2K67

10K0

R63

3K16

R13

10K0

R70

2K67

R21

10K0

R65
3K16

R20
10K0

R71

2K67

R28

10K0

R67

3K16

R27

10K0

R72

2K67

R14

R73

6K04

R6

6
5

2
3

6

5

2
3

6

5

2
3

6

5

C18
10P

C21
10P

C24
10P

IC5A
4580

IC5B
4580

IC8A
4580

IC8B
4580

IC11A
4580

IC11B
4580

IC14A
4580

IC14B
4580

R89
5K76

1

7

R90

5K76

1

R74
6K04

7

R91

5K76

1

R75
6K04

7

R92

5K76

1

R76

6K04

7

60R4
R78

4K53

3K24

R93
60R4

4K53

R96

60R4

4K53

3K24

R95
60R4

4K53

3K16

R98
60R4

R82

4K53

R87
3K24

R97
60R4

R81

4K53

3K16

R100
60R4

R84
4K53

R88

3K24

60R4

R83

4K53

R94

R85

R77

R62

3K16

R80

R86

R79

R64

R66

R99

R68

3K16

C37

C33

470P

470P

SGNDSGNDSGND

C38

C34

470P

470P

SGNDSGNDSGND

C39

C35

470P

470P

SGND SGND SGND

C40

C36

470P

470P

SGND SGND SGND

4
2
3
1

3c
4d
2b
1a

5e

PJ2

PHONEJACK5 (5-PIN)

4
2
3
1

3c
4d
2b
1a

5e

PJ4

PHONEJACK5 (5-PIN)

4
2
3
1

3c
4d
2b
1a

5e

PJ6

PHONEJACK5 (5-PIN)

4
2
3
1

3c
4d
2b
1a

5e

PJ8

PHONEJACK5 (5-PIN)

CN8

CN-BAL-MALE

CN9

CN-BAL-MALE

CN10

CN-BAL-MALE

CN11

CN-BAL-MALE

84

IC12C
4580

IC6C
4580

IC9C
4580

IC3C
4580

84

84

C44

C59

C61

+15V

100N

100N

C71
100N

C72
100N

C63
100N

C64
100N

C67
100N

C68
100N

C60
100N

C73
100N

C74
100N

C65
100N

C66
100N

C69
100N

C70
100N

100N

C62
100N

C50
100N

C49
100N

C43
100N

C46

+15V

100N

C45

-15V

100N

CN1

CN3.9-3P-180

C48

+15V

100N

C47

-15V

100N

+15V

-15V

-15V

1
2
3

TP1
GGND

JP1

C53
100N

C41
100N

CN12

CN2.5-2P-180

C54
100N

BD1

RB154

C42
100N

PWR LIGHT

R101

1.2K 1/4W

1
2

1000uF/35V

1000uF/35V

+15V

C56

C55

C75
100uF/35V

IC1
7815

IC2
7915

SGND

84

IC5C
4580

84

84

IC8C
4580

84

IC11C
4580

84

IC14C
4580

C58

47uF/50V

C57

47uF/50V

JP2

8

D

C

+15V

-15V

B

A

Titel

Size

Date:
File:

A3

GATEPU

ALTO GATE

15-May-2003
GATE_PU.sch

Sheet
Drawn By:

RevisionModel No:

M. J. YANG

VER030515

55of

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