Alto DPA 900 Bedienungsanleitung

www.altoproaudio.com

Version2.0

MODEL: PS 4LA

MODEL: DPA 900/1500

CONTENT

1. Introduction………………………………………………....................2

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

3. Schematic Diagram……………………………………………………4

4. PCB Layout…………………………………………………………….13

5. Test Procedure & Test Result……………………………………....18

6. Exploded Views & Mechanical Parts List………………………...23

7. BOM………………………………………………………………...…...26

1. Introduction

ALTO MISTRAL amplifiers are series of innovative design power amplifiers. This series work

under high stability with great power supply in just 2-rack spaces. Air flow is from back to front

panel to keep in a nice air circulation inside the Rack. The automatic fan, which affects machines’

temperature includes various kinds of speed, therefore, this low-noise fan makes a good result in

cooling the heat from machines.

MISTRAL amplifiers include 2 independent channels with separate protection system and

power supply. The independent protection system avoids opening circuit, short, wrong loading or

over-heating. The special-designed protective system applies automatically restarting functions

upon the default status and then goes back to normal.

All electronic inputs equip standard power connectors. And all inputs are electronic balanced,

with hi-quality transformer, MISTRAL amplifiers provide an outstanding performance in any

conditions.

zInnovative design and high stability power amplifiers.

zFan-cooled AB class high power amplifier in 19”rack, 2Usize

zRugged amplifiers in a strong, compact chassis.

z2 independent channels with separate protection system and power supply

zsmart-designed protection system for auto re-operation after fault.

zAuto-adjusting speed fan.

z4LEDs for operation/protection, limit, power on and clip

zHIGH-CURRENT TOROIDAL TRANSFORMER DESIGNED FOR HIGH POWER AT 2

Ohms with low noise.

zIndependent DC and thermal overload protection on each channel.

zIEC standard power connectors.

zBinding post and NEUTRIK® SPEAKON outputs power connectors.

zBalanced XLR inputs/ parallel outputs.

2. Specification

Output Power DPA 900 DPA 1500

20Hz-20KHz @0.1% THD, SCD MODE

8Ohms per channel(EIAJ) 190W 300W

4Ohms per channel (EIAJ) 300W 500W

Bridge MONO mode

8Ohms ,1KHz, 0.1% THD 600W 1000W

Distortion (SMPTE-IM) <0.05%

Frequency response 20Hz-20KHz=/-0.1dB, -3dB points:10Hz-60Hz

Damping factor ,1 kHz and below >300 at 8 Ohms

Signal to noise ,20Hz`20KHz 102dB

Voltage Gain 40 Χ(32dB)

Input sensitivity @4Ohms 1Vrms

Input clipping 10Vrms(+22dB)

Input impedance 10kOhms unbalanced, 20k Ohms balanced 56(36dB)

Controls Front :AC switch ,CH1&CH2 Gain knobs

Rear :Limiter bridge selector

Indicators (1per channel)

Power-on : Blue LED

Operation/Protection: Dual Color(green/red LED)

Limit: Red LED

Clip: Red LED

Connectors, each channel

Input: Active balanced XLR

Parallel output: XLR

Output: NEUTRIK speaker and binding posts

Cooling Continuously variable-speed fan, rear-to front air flow

Load protection On/off muting, DC-fault load grounding relay, internal

fault fuses.

Power requirements 200-240(100-120)VAC 50-60Hz

Dimensions 19”(48.3cm) rack mounting, 3.5”(8.9cm) tall (2rackspaces)

15.9”(40cm)deep (rack mounting to rear support ears)

weight 12.9kg (Net) 14.8kg (Net)

1 2 3 4 5 6 78

7654321

C1_16

4700uF/80V

R1_13

22R 1W

R1_19

0.1R 3W

D1_6

1N4148

+73V_A

2K1

D1_15

1N4004

GND1

2xMJL21193

Q1_1

MJE15030

1 2

R1_21

470R 3W

1 2

C1_13

22nF/100V poly

1 2

C1_11

3.3nF/50 cer

1 2

C1_12

3.3nF/50 cer

R1_17

4R7 1W

R1_18

4R7 1W

GND1

1D1_19

1N4148

Q1_2

MJE15031

2K1

D1_10

1N4148

Q1_4

1 2

R1_14

22R 1W

1 2

R1_20

0.1R 3W

GND1

-73V_A

2K1

D1_17

1N4004

D1_11

1N4937

D1_12

1N4937

1 2

C1_9

2.2nF/50 cer

C1_10

22nF/50 cer

2K1

D1_13

ZD5V6 1/2W

R1_9

820R

R1_11

1K5 2W

R1_10

820R

1 2

R1_12

1K5 2W

2K1

D1_14

ZD5V6 1/2W

2K1

D1_7

1N4148

Vic+

2K1

D1_3

ZD15V1.3W

C1_8

220uF/25V

GND1

R1_32

100R

GND1

Vic-

1 2

C1_5

56pF/50 cer

1 2

R1_3

10K

1 2

C1_7

27pF/50 cer

1 2

R1_6

12K SPEAKERS BUS

R1_5

330R

C1_6

47uF/16NP

GND1

R1_30

4K7

R1_31

4K7

GND1

CH1 GAIN

1G2

C1_27

47uF/25V

2K1

D1_8

ZD15V1.3W

C1_4

220uF/25V

GND1

1 2

C1_25

100pF/50 cer

1G2

C1_26

47uF/25V

C1_3

100pF/50 cer

1G2

C1_23

10uF/50V

GND1

1G2

C1_24

10uF/50V

1 2

R1_8

NTC 50R

R1_16

TRIMMER 100R

U1_1A

NJM4580L

U1_1B

NJM4580L

U1_1C

NJM4580L

Vic+

Vic-

Q1_3

R1_29

3P-2.5

MIS9-CH1.Sch

Titel

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RevisionModel No:

16-Mar-2004

C.C.LIN

ALTO MISTRAL1500-CH1 DRIVE

32of

MISTRAL1500 VER040302

U2A

NJM4580L

1 2

R1_42

4K7 1/8W

1 2

R1_41

4K7 1/8W

D1_9

W2 - 0 4

GND1

1 2

R1_25

47R

233

U1_2

VTL5C2

GND1

(FTR VT90N1 VACTEC+)

GND1

CH1 INSERT OUT

CH1 INSERT IN

122

344

566

788

910 10

11 12 12

13 14 14

HEADER 7X2

GND1 GND1

1 2

L1_1

2uH 10A

1 2

R1_26

5R6 2W

R1_22

10R 3W

C1_2

100nF/250V poly

GND1

CH1 OUTPUT

GND1

SPEAKON PCB

12 R1_36

120K

C1_1

47uF/100V

2K1

D1_2

1N4004

12 R1_39

PTC 65R

CH1 PHOTO COUPLER

-15V

+15V

GND1

R1_37

12K

(1.5A 200V)

C1_15

4700uF/80V

R1_7

330R

R1_4

330R

11A

12 C1_14

3.3nF/100 poly

1 2

R1_15

150R

0.2A

U2C

NJM4580L

+15V

-15V

D1_18

3mm RED LED

CH1_LIM_SW1

CH1_LIM_SW2

D1_21

3mm YELLOW LED

2J1_6

CON2

1 2

R1_27

10K

1 2

R1_1

10K

1 2

R1_2

10K

R1_28

10K

CH1 IN+

CH1 IN-

CH1 IN+

CH1 IN-

CH2 IN+

CH2 IN-

CH1 BRIDGE SWITCH CH2 BRIDGE

CH1_LIM_SW1

CH1_LIM_SW2

CH2_LIM_SW1

CH2_LIM_SW2

CH1 BRIDGE SWITCH

Pout=418W RMS @ 4 Ohm

D1_16

3mm GREEN LED

Vic-

Vic+

R1_33

3K3 1/2W

OPERATING LED

OUTPUT_1 OUTPUT1

1 2

F1_1

1 2

F1_2

OUTPUT_1

R1_34

47K

R1_38

10K

100R

10K

2K1

D1_5

ZD15V1.3W

1 2

D1_4

5mm RED LED

GND1

+73V_A

-73V_A

1 2

R1_35

100K

1 2

R1_40

6K8

Q1_6

MPSA42

Q1_5

MPSA92

Vic+

Vic-

GND1

CLIP

J1_4

CN-PCB6.3

J1_5

CN-PCB6.3

D1_20

W2 - 0 4

J1_7

CN-PCB6.3

J1_8

CN-PCB6.3

J1_9

CN-PCB6.3

J1_10

CN-PCB6.3

V+

V-

AC1

GND

J1_11

CON2

J2_11

CON2

GND1

CH1 IN+

CH2 IN+

for PBM8

3. Schematic Diagram

1 2 3 4 5 6 78

7654321

C1_16

4700uF/80V

R1_13

22R 1W

R1_19

0.1R 3W

R1_23

0.1R 3W

Q1_7

D1_6

1N4148

+73V_A

2K1

D1_15

1N4004

GND1

2xMJL21193

Q1_1

MJE15030

1 2

R1_21

470R 3W

1 2

C1_13

22nF/100V poly

1 2

C1_11

3.3nF/50 cer

1 2

C1_12

3.3nF/50 cer

R1_17

4R7 1W

R1_18

4R7 1W

GND1

1D1_19

1N4148

Q1_2

MJE15031

2K1

D1_10

1N4148

Q1_4B

Q1_8

1 2

R1_14

22R 1W

1 2

R1_20

0.1R 3W

1 2

R1_24

0.1R 3W

GND1

-73V_A

2K1

D1_17

1N4004

D1_11

1N4937

D1_12

1N4937

1 2

C1_9

2.2nF/50 cer

C1_10

22nF/50 cer

2K1

D1_13

ZD5V6 1/2W

R1_9

820R

R1_11

2K2 2W

R1_10

820R

1 2

R1_12

2K2 2W

2K1

D1_14

ZD5V6 1/2W

2K1

D1_7

1N4148

Vic+

2K1

D1_3

ZD15V1.3W

C1_8

220uF/25V

GND1

R1_32

100R

GND1

Vic-

1 2

C1_5

56pF/50 cer

1 2

R1_3

10K

1 2

C1_7

27pF/50 cer

1 2

R1_6

12K SPEAKERS BUS

R1_5

330R

C1_6

47uF/16NP

GND1

R1_30

4K7

R1_31

4K7

GND1

CH1 GAIN

1G2

C1_27

47uF/25V

2K1

D1_8

ZD15V1.3W

C1_4

220uF/25V

GND1

1 2

C1_25

100pF/50 cer

1G2

C1_26

47uF/25V

C1_3

100pF/50 cer

1G2

C1_23

10uF/50V

GND1

1G2

C1_24

10uF/50V

1 2

R1_8

NTC 50R

R1_16

TRIMMER 100R

U1_1A

NJM4580L

U1_1B

NJM4580L

U1_1C

NJM4580L

Vic+

Vic-

Q1_3

R1_29

3P-2.5

MIS15-CH1.Sch

Titel

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RevisionModel No:

2-Mar-2004

C.C.LIN

ALTO MISTRAL1500-CH1 DRIVE

32of

MISTRAL1500 VER040302

U2A

NJM4580L

1 2

R1_42

4K7 1/8W

1 2

R1_41

4K7 1/8W

D1_9

W2 - 0 4

GND1

1 2

R1_25

47R

233

U1_2

VTL5C2

GND1

(FTR VT90N1 VACTEC+)

GND1

CH1 INSERT OUT

CH1 INSERT IN

122

344

566

788

910 10

11 12 12

13 14 14

HEADER 7X2

GND1 GND1

1 2

L1_1

2uH 10A

1 2

R1_26

5R6 2W

R1_22

10R 3W

C1_2

100nF/250V poly

GND1

CH1 OUTPUT

GND1

SPEAKON PCB

12 R1_36

120K

C1_1

47uF/100V

2K1

D1_2

1N4004

12 R1_39

PTC 65R

CH1 PHOTO COUPLER

-15V

+15V

GND1

R1_37

12K

(1.5A 200V)

C1_15

4700uF/80V

R1_7

330R

R1_4

330R

11A

12 C1_14

3.3nF/100 poly

1 2

R1_15

150R

0.2A

U2C

NJM4580L

+15V

-15V

D1_18

3mm RED LED

CH1_LIM_SW1

CH1_LIM_SW2

D1_21

3mm YELLOW LED

2J1_6

CON2

1 2

R1_27

10K

1 2

R1_1

10K

1 2

R1_2

10K

R1_28

10K

CH1 IN+

CH1 IN-

CH1 IN+

CH1 IN-

CH2 IN+

CH2 IN-

CH1 BRIDGE SWITCH CH2 BRIDGE

CH1_LIM_SW1

CH1_LIM_SW2

CH2_LIM_SW1

CH2_LIM_SW2

CH1 BRIDGE SWITCH

Pout=418W RMS @ 4 Ohm

D1_16

3mm GREEN LED

Vic-

Vic+

R1_33

3K3 1/2W

OPERATING LED

OUTPUT_1 OUTPUT1

1 2

F1_1

1 2

F1_2

OUTPUT_1

R1_34

47K

R1_38

10K

100R

10K

2K1

D1_5

ZD15V1.3W

1 2

D1_4

5mm RED LED

GND1

+73V_A

-73V_A

1 2

R1_35

100K

1 2

R1_40

6K8

Q1_6

MPSA42

Q1_5

MPSA92

Vic+

Vic-

GND1

CLIP

J1_4

CN-PCB6.3

J1_5

CN-PCB6.3

D1_20

W2 - 0 4

J1_7

CN-PCB6.3

J1_8

CN-PCB6.3

J1_9

CN-PCB6.3

J1_10

CN-PCB6.3

V+

V-

AC1

GND

1 2 3 4 5 6 78

7654321

C1_16

4700uF/80V

R1_13

22R 1W

R1_19

0.1R 3W

R1_23

0.1R 3W

Q1_7

D1_6

1N4148

+73V_A

2K1

D1_15

1N4004

GND1

2xMJL21193

Q1_1

MJE15030

1 2

R1_21

470R 3W

1 2

C1_13

22nF/100V poly

1 2

C1_11

3.3nF/50 cer

1 2

C1_12

3.3nF/50 cer

R1_17

4R7 1W

R1_18

4R7 1W

GND1

1D1_19

1N4148

Q1_2

MJE15031

2K1

D1_10

1N4148

Q1_4B

Q1_8

1 2

R1_14

22R 1W

1 2

R1_20

0.1R 3W

1 2

R1_24

0.1R 3W

GND1

-73V_A

2K1

D1_17

1N4004

D1_11

1N4937

D1_12

1N4937

1 2

C1_9

2.2nF/50 cer

C1_10

22nF/50 cer

2K1

D1_13

ZD5V6 1/2W

R1_9

820R

R1_11

2K2 2W

R1_10

820R

1 2

R1_12

2K2 2W

2K1

D1_14

ZD5V6 1/2W

2K1

D1_7

1N4148

Vic+

2K1

D1_3

ZD15V1.3W

C1_8

220uF/25V

GND1

R1_32

100R

GND1

Vic-

1 2

C1_5

56pF/50 cer

1 2

R1_3

10K

1 2

C1_7

27pF/50 cer

1 2

R1_6

12K SPEAKERS BUS

R1_5

330R

C1_6

47uF/16NP

GND1

R1_30

4K7

R1_31

4K7

GND1

CH1 GAIN

1G2

C1_27

47uF/25V

2K1

D1_8

ZD15V1.3W

C1_4

220uF/25V

GND1

1 2

C1_25

100pF/50 cer

1G2

C1_26

47uF/25V

C1_3

100pF/50 cer

1G2

C1_23

10uF/50V

GND1

1G2

C1_24

10uF/50V

1 2

R1_8

NTC 50R

R1_16

TRIMMER 100R

U1_1A

NJM4580L

U1_1B

NJM4580L

U1_1C

NJM4580L

Vic+

Vic-

Q1_3

R1_29

3P-2.5

MIS15-CH1.Sch

Titel

Size

File:

Date:

Drawn By:

Sheet

RevisionModel No:

2-Mar-2004

C.C.LIN

ALTO MISTRAL1500-CH1 DRIVE

32of

MISTRAL1500 VER040302

U2A

NJM4580L

1 2

R1_42

4K7 1/8W

1 2

R1_41

4K7 1/8W

D1_9

W2 - 0 4

GND1

1 2

R1_25

47R

233

U1_2

VTL5C2

GND1

(FTR VT90N1 VACTEC+)

GND1

CH1 INSERT OUT

CH1 INSERT IN

122

344

566

788

910 10

11 12 12

13 14 14

HEADER 7X2

GND1 GND1

1 2

L1_1

2uH 10A

1 2

R1_26

5R6 2W

R1_22

10R 3W

C1_2

100nF/250V poly

GND1

CH1 OUTPUT

GND1

SPEAKON PCB

12 R1_36

120K

C1_1

47uF/100V

2K1

D1_2

1N4004

12 R1_39

PTC 65R

CH1 PHOTO COUPLER

-15V

+15V

GND1

R1_37

12K

(1.5A 200V)

C1_15

4700uF/80V

R1_7

330R

R1_4

330R

11A

12 C1_14

3.3nF/100 poly

1 2

R1_15

150R

0.2A

U2C

NJM4580L

+15V

-15V

D1_18

3mm RED LED

CH1_LIM_SW1

CH1_LIM_SW2

D1_21

3mm YELLOW LED

2J1_6

CON2

1 2

R1_27

10K

1 2

R1_1

10K

1 2

R1_2

10K

R1_28

10K

CH1 IN+

CH1 IN-

CH1 IN+

CH1 IN-

CH2 IN+

CH2 IN-

CH1 BRIDGE SWITCH CH2 BRIDGE

CH1_LIM_SW1

CH1_LIM_SW2

CH2_LIM_SW1

CH2_LIM_SW2

CH1 BRIDGE SWITCH

Pout=418W RMS @ 4 Ohm

D1_16

3mm GREEN LED

Vic-

Vic+

R1_33

3K3 1/2W

OPERATING LED

OUTPUT_1 OUTPUT1

1 2

F1_1

1 2

F1_2

OUTPUT_1

R1_34

47K

R1_38

10K

100R

10K

2K1

D1_5

ZD15V1.3W

1 2

D1_4

5mm RED LED

GND1

+73V_A

-73V_A

1 2

R1_35

100K

1 2

R1_40

6K8

Q1_6

MPSA42

Q1_5

MPSA92

Vic+

Vic-

GND1

CLIP

J1_4

CN-PCB6.3

J1_5

CN-PCB6.3

D1_20

W2 - 0 4

J1_7

CN-PCB6.3

J1_8

CN-PCB6.3

J1_9

CN-PCB6.3

J1_10

CN-PCB6.3

V+

V-

AC1

GND

1 2 3 4 5 6 78

7654321

C2_16

4700uF/80V

R2_13

22R 1W

R2_19

0.1R 3W

R2_23

0.1R 3W

Q2_7

D2_6

1N4148

+73V_B

2K1

D2_15

1N4004

GND1

2xMJL21193

Q2_1

MJE15030

1 2

R2_21

470R 3W

1 2

C2_13

22nF/100V poly

1 2

C2_11

3.3nF/50 cer

1 2

C2_12

3.3nF/50 cer

R2_17

4R7 1W

R2_18

4R7 1W

GND1

1D2_19

1N4148

Q2_2

MJE15031

2K1

D2_10

1N4148

Q2_4B

Q2_8

1 2

R2_14

22R 1W

1 2

R2_20

0.1R 3W

1 2

R2_24

0.1R 3W

GND1

-73V_B

2K1

D2_17

1N4004

D2_11

1N4937

D2_12

1N4937

1 2

C2_9

2.2nF/50 cer

C2_10

22nF/50 cer

2K1

D2_13

ZD5V6 1/2W

R2_9

820R

R2_11

2K2 2W

R2_10

820R

1 2

R2_12

2K2 2W

2K1

D2_14

ZD5V6 1/2W

2K1

D2_7

1N4148

Vic2+

2K1

D2_3

ZD15V1.3W

C2_8

220uF/25V

GND1

D2_20

W2 - 0 4

R2_32

100R

GND1

Vic2-

1 2

C2_5

56pF/50 cer

1 2

R2_3

10K

1 2

C2_7

27pF/50 cer

1 2

R2_6

12K SPEAKERS BUS

R2_5

330R

C2_6

47uF/16NP

GND1

R2_30

4K7

R2_31

4K7

GND1

CH1 GAIN

1G2

C2_27

47uF/25V

2K1

D2_8

ZD15V1.3W

C2_4

220uF/25V

GND1

1 2

C2_25

100pF/50 cer

1G2

C2_26

47uF/25V

C2_3

100pF/50 cer

1G2

C2_23

10uF/50V

GND1

1G2

C2_24

10uF/50V

1 2

R2_8

NTC 50R

R2_16

TRIMMER 100R

U2_1A

NJM4580L

U2_1B

NJM4580L

Q2_3

R2_29

3P-2.5

MIS15-CH2.Sch

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RevisionModel No:

2-Mar-2004

C.C.LIN

ALTO MISTRAL1500-CH1 DRIVE

33of

MISTRAL1500 VER040302

U2B

NJM4580L

1 2

R2_42

4K7 1/8W

1 2

R2_41

4K7 1/8W

D2_9

W2 - 0 4

GND1

1 2

R2_25

47R

233

U2_2

VTL5C2

GND1

(FTR VT90N1 VACTEC+)

GND1

CH2 INSERT OUT

CH2 INSERT IN

12 L2_1

2uH 10A

1 2

R2_26

5R6 2W

R2_22

10R 3W

C2_2

100nF/250V poly

GND1

CH1 OUTPUT

GND1

SPEAKON PCB

12 R2_36

120K

C2_1

47uF/100V

2K1

D2_2

1N4004

12 R2_39

PTC 65R

CH1 PHOTO COUPLER

-15V

+15V

GND1 (1.5A 200V)

(1.5A 200V)

C2_15

4700uF/80V

R2_7

330R

R2_4

330R

11A

12 C2_14

3.3nF/100 poly

1 2

R2_15

150R

0.2A

D2_18

3mm RED LED

CH2_LIM_SW1

CH2_LIM_SW2

D2_21

3mm YELLOW LED

2J2_6

CON2

1 2

R2_27

10K

1 2

R2_1

10K

1 2

R2_2

10K

R2_28

10K

CH2 IN+

CH2 IN-

CH2 BRIDGE

Pout=418W RMS @ 4 Ohm

D2_16

3mm GREEN LED

Vic2-

Vic2+

R2_33

3K3 1/2W

OPERATING LED

OUTPUT_2 OUTPUT2

1 2

F2_1

1 2

F2_2

OUTPUT_2

R2_34

47K

R2_38

10K

100R

10K

2K1

D2_5

ZD15V1.3W

1 2

D2_4

5mm RED LED

GND1

+73V_B

-73V_B

1 2

R2_35

100K

1 2

R2_40

6K8

Q2_6

MPSA42

Q2_5

MPSA92

Vic2+

Vic2-

GND1

CLIP

U2_1C

NJM4580L

Vic2+

Vic2-

J2_4

CN-PCB6.3

J2_5

CN-PCB6.3

J2_7

CN-PCB6.3

J2_8

CN-PCB6.3

J2_9

CN-PCB6.3

J2_10

CN-PCB6.3

V+

V-

AC1

GND

1 2 34

321

910

11 12

13 14

CN1

HEADER 7X2

CN3

CH1-XLR-IN

CN2

CH1-LINK-OUT

SW1A

BRIDGE

SW1B

BRIDGE

SW2A

LIMITER

SW2B

LIMITER

PJ1

CH1-JACK-IN

CN5

CH2-XLR-IN

CN4

CH2-LINK-OUT

PJ2

CH2-JACK-IN

CN7

CON3

CN6

CON3

CN8

CON3

CN9

CON3

MIS15IN.Sch

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8-Mar-2004

C.C.LIN

ALTO : MISTRAL1500

11of

MISTRAL1500 VER040204

1 2 34

321

D2_30

3mm YELLOW LED

D2_3

3mm RED LED

D2_29

3mm BLUE LED

LIMITER

CLIP

ON/PROTECTION

D2_1

3mm GREEN LED

POWER ON

D1_30

3mm YELLOW LED

D1_3

3mm RED LED

D1_29

3mm BLUE LED

LIMITER

CLIP

ON/PROTECTION

D1_1

3mm GREEN LED

POWER ON

VR1_1

B50K

VR2_1

B50K

CN1_1

3P2.5

CN2_1

3P2.5

CN3

CON14

MIS15FP.Sch

Titel

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RevisionModel No:

8-Mar-2004

C.C.LIN

ALTO : MISTRAL1500

11of

MISTRAL1500 VER040204

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