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Alto PBM 8.250 Service Manual Download Page 16

16

1

2

3

4

A

B

C

D

4

3

2

1

D

C

B

A

Title

Number

Revision

Size

A4

Date:

17-Jan-2005

Sheet    of 

File:

D:\JHB\AUDIO\MIXER\ALTO\POWER MIXER\pbm8\SCH&PCB\PBM8 

1101\PBM8.ddb

Drawn By:

1

2

3

J2

CON3

POWER

SUPPLY

CONNECTOR

C40

100nF/100V

1

2

3

4

D17
BRIDGE 1.5A 200V

C41

1000uF/35V

C42

1000uF/35V

R31
0R

+V

-V

PGND

C43

33uF/100V

1

2

3

4

D18
BRIDGE 1.5A 200V

C44

33uF/100V

C48

100uF/100V

C49

100uF/100V

C45

100N

C46

100N

D19

1N4004

C47

220uF/35V

D20

1N4004

VCC1

R111

3K9 1/2W

D21

3mm GREEN LED

+17V

-17V

OPERATING

U12

LM317T

+17V

+V

R104
220R

R103

2K7

R102

180K

C55

10uF/25V

C54

100N

U18

LM337T

-17V

-V

R107
220R

R106

2K7

C57

10uF/25V

C56

100N

U19

LM317T

+5V

VCC1

R110
220R

R109

680R

C59

10uF/25V

C58

100N

R108
82R 5W

U8

LM317T

R101
220R

R100

8K2

R48
220R

C52

47uF/63V

C50

100N

D22

1N4148

R42

22

0R

1/

2W

R35

22

0R

1/

2W

C51

2.2uF/100V

PHANTOM

C53

100nF/100V

PGND

PGND

PGND

Summary of Contents for PBM 8.250

Page 1: ......

Page 2: ...2 0 1 2...

Page 3: ...3 0 1 2 3 4 0 1 2 5 0 0...

Page 4: ...4 3 4 5 4 6 7 8 9 7 9 5 0 0 7 78 4 8 7 0 9 0 9 4 8 8 8 8 3 4 5 4 6 7 8 9 7 9 5 0 0 7 78 4 8 7 0 9 0 9 4 8 8 8 8...

Page 5: ...5...

Page 6: ...R5_27 10K R5_28 22K R 5_5 B50K R5_26 22K 4 3 4 7 R5_6 B50K 3 8 3 R5_19 10K R5_25 22K R5_4 B50K R5_20 22K 7 3 4 8 9 PAD 20dB HIGH CH MID CH LOW LEVEL MON AUX1 PRE DSP FXAUX2 POST PAN POT U 5_2C NJM 458...

Page 7: ...16_2 5K 6 CF 16_2 1N RF 16_3 100K RF 16_4 100K RF 16_6 100R1 8W RF 16_5 18K B9 B77 B B9 B77 B RF 16_13 100R1 8W B9 B 73 8 9 CF 16_3 1N RF 16_8 100K RF 16_9 5K 6 RF 16_10 100K RF 16_11 100K CF 16_4 1N...

Page 8: ...7B 7 B9 3 U6A NJM 4580M 5 A U6B NJM 4580M R50 22K C22 22P R49 5K 6 R51 6K 8 R52 39K C23 10P 7B 7 B9 3 R53 22K U7A NJM 4580M 5 A U7B NJM 4580M R54 5K6 C24 22P R55 6K 8 R56 39K C25 10P 7 B9 B 73 8 9 8...

Page 9: ...P P LY CONNECTO R C40 100nF 100V D17 BRIDG E1 5A200V C41 1000uF 35V C42 1000uF 35V R31 0R C C43 33uF 100V D18 BRIDG E1 5A200V C44 33uF 100V C48 100uF 100V C49 100uF 100V C45 100N C46 100N D19 1N4004 C...

Page 10: ...R16 10K C9 22P R19 100R1 4W R18 10K R20 10K 5 6 7 U6B NJM4580M R21 10K C10 22P R22 100R1 4W C11 47uF 35V R23 10K C12 47uF 35V R24 10K 3c 5e 1a 4d 2b J6 90STEREOJACK 2 1 3 4 J20 XLRFEMALE LEFFOUT BALA...

Page 11: ...H5 INPUT C5_1 47uF 63V R5_4 2K2 R5_1 6K8 R5_2 10K R5_3 6K8 PHANTOM C5_2 47uF 63V R5_5 2K2 3c 5e 1a 4d 2b J5_2 90STEREO JACK R5_6 22K C5_4 10uF 25V R5_8 2K2 R5_7 22K C5_3 10uF 25V R5_9 2K2 C5_5 56P R5_...

Page 12: ...42 4K7 1 8W R1_41 4K7 1 8W D1_9 W2 04 GND1 R1_25 47R 4 1 2 3 U1_2 VT L5C2 GND1 FTRVT90N1 VAC TE C GND1 CH1 INSE RTOUT CH1 INSERTIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 J4 HEADER7X2 GND1 GND1 L1_1 2uH 10A...

Page 13: ...ision Mo del No 17 Jan 20 05 C C LIN ALTO PBM8 CH1 DRIVE 3 3 of PBM8 250 VER04040 6 A2 5 6 7 U2B NJM4580L R2_42 4K7 1 8W R2_41 4K7 1 8W D2_9 W2 04 GND1 R2_25 47R 4 1 2 3 U2_2 VT L5C2 GND1 FTRVT90N1VAC...

Page 14: ...41 4K7 1 8W D1_9 W2 04 GND1 R1_25 47R 4 1 2 3 U1_2 VTL5C2 GND1 FTRVT90N 1 VACTEC GND1 CH1 INSERTOUT CH1 INSE RTIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 J4 HEADER 7X2 GND1 GND1 L1_1 2uH 10A R1_26 5R6 2W R1_...

Page 15: ...te DrawnBy Sheet Revision Model No 17 Jan 2005 C C LIN ALTO PBM8 CH1 DRIVE 3 3 of PBM8 500 VER040406 A2 5 6 7 U2B NJM4580L R2_42 4K7 1 8W R2_41 4K7 1 8W D2_9 W2 04 GND1 R2_25 47R 4 1 2 3 U2_2 VTL5C2 G...

Page 16: ...18 BRIDGE1 5A200V C44 33uF 100V C48 100uF 100V C49 100uF 100V C45 100N C46 100N D19 1N4004 C47 220uF 35V D20 1N4004 VCC1 R111 3K 9 1 2W D21 3mmG REENLED 17V 17V OPERATING U12 LM 317T 17V V R104 220R R...

Page 17: ...17...

Page 18: ...18...

Page 19: ...19...

Page 20: ...20 6 7 8...

Page 21: ...21 6 7 8...

Page 22: ...p indicating respectively CH1 and CH2 are at operating status LED D1 18 and LED D2 18 yellow light up indicating the limiter function is normal LED D1 21 and LED D2 21 red light up indicating the clip...

Page 23: ...23 3 D E D F D 0 9 G7H D 0 5 73 7 78 0 9 E D D 7 E 5D 7 78 73 E D I J 73 9 E D I J 73 8 C E D I J...

Page 24: ...D I J 73 9 E D I J 73 8 C E D I J 9 7 9 73 E D I J 3 4 73 E D I J 5D 7 E A D 9 7 78 73 E D I J 73 9 E D I J 9 7 9 73 E D I J 3 4 73 E D I J AD 6 9 7 9 9 K 8 C 73 9 E D I J 73 8 C E D I J 7 78 73 E D I...

Page 25: ...9 E D I J 9 7 9 73 E D I J 3 4 73 E D I J D 6 0 4 D 6 9 L L 5L E D 30 25 25 20 15 10 5 0 5 10 15 20 d B u 20 20k 50 100 200 500 1k 2k 5k 10k Hz 30 25 25 20 15 10 5 0 5 10 15 20 d B u 20 20k 50 100 20...

Page 26: ...26 D 6 9 5 E D D 6 9 L L 5L E 7 7 D 30 25 25 20 15 10 5 0 5 10 15 20 20 20k 50 100 200 500 1k 2k 5k 10k Hz 30 25 25 20 15 10 5 0 5 10 15 20 d B u 20 20k 50 100 200 500 1k 2k 5k 10k Hz...

Page 27: ...6 M 9 C 76 4 5D 6 9 8 7 9 6 J 6 9 8 7 9 7 7 6 J 9 8 7 9 8 C 9 5 6 3 0 2 5 2 5 2 0 1 5 1 0 5 0 5 1 0 1 5 2 0 d B u 20 2 0 k 5 0 10 0 20 0 5 0 0 1 k 2 k 5 k 1 0k H z 30 20 20 10 0 10 d B u 20 20k 50 100...

Page 28: ...28 J 6 9 8 7 9 A6 J 6 9 8 7 9 7 7 A6 J 9 8 7 9 8 C 9 A6 J AD 9 9 C C 0 7 78 4 E K 8 D 1 2 0 2 0 1 1 0 1 0 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 d B u 2 0 2 0 k 5 0 1 0 0 2 0 0 5 0 0 1 k 2 k 5 k H z...

Page 29: ...29 D 4 9 8 E K 8 D l12 at2 120 20 110 100 90 80 70 60 50 40 30 d B u 20 20k 50 100 200 500 1k 2k 5k 10k Hz D 1 9 9 7 78 9 9 4 N 0 7 E 9 9 7 78 9 9 0 D N 0 E D D 9...

Page 30: ...O 0 B A 5 0 O A 5 0 A A 0 5O A O O 5 A O 5 O 0 A A O O A 0 0 B 0 B 0 B 0 O O 0 B 0 B 0 O O 5A 0 B 5 0 B A 0 O O 5A A5 0 O O5 O B 5 0 O O 5A C O O 0 C 5 O O C O O C 5 O5 O 5 O C 5 O 5 C O5 A C 5 O C 5...

Page 31: ...A 0 O O 0 B 5 0 O 5 5 0 O A 5 0 O A 0 AO A A A 0 AO A 0 AO A 5 0 AO 0 A 0 O A5 5AA 0 O 0 AA 5 9 A 5 A 0 A 0 0 5 A 0 OA 9 0 O5 O 9 0 7 7 O 0 O 5 9 A A 0 9 A O 0 O 5 7 9 A 0 7 O 9 A 0 B 0 O 0 O 5 B 5 A...

Page 32: ...8 8 8 8 5 8 A 8 8 8 8 8 8 8 5 8 A 8 A 8 8 8 8 8 8 5 8 A 8 8 8 8 8 8 5 8 A 8 8 8 8 8 8 5 8 A 8 5 8 5 8 5 8 5 8 5 8 5 5 8 5 A 8 5 L 8 L O E DF 8 8 8 A 8 A 8 A 8 A 8 A 8 A 5 8 A A 8 8 8 8 8 8 5 8 A 8 6 8...

Page 33: ...A 8 6 AL S J 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 A 8 6 L S J 8 8 8 A 8 6 AL S J 8 8 8 8 8 8 8 8 8 A5 8 6 AL S J 8 8 8 5 8 8 8 5 8 8 AA 8 6 L S J 8 8 5 8 A5 8 AA 8 8 8 8 8 5 8 8 8 8 8 8 8 8 5 8 A 8 A...

Page 34: ...5 4 A8 S J 5 A 5 9 5 7 4 A8 S J A A 5 4 A8 S J A 7 4 A8 S J 9 5 9 5 2 6 E8 P D 9 8 E D 5 A 5 A5E 5DE 7 D E D A 8 6 S J 8 8 8 8 8 6 L S J 8 8 8 8 8 8 8 8 8 8 6 L S J 8 8 8 6 L S J 8 8 6 5 L S J 8 5 8 5...

Page 35: ...A 8 8 8 5 8 8 8 8 8 8 8 5 8 5 8 A 8 A 8 8 5 8 6 L S J 8 8 8 8 8 8 8 8 8 8 8 5 8 A 8 8 8 8 8 8 8 8 8 8 8 5 8 5 8 5 8 5 8 8 8 5 8 6 L S J 8 5 8 A 8 5 8 A 8 5 8 A 8 5 8 A 8 5 8 A 8 5 5 8 5 A 8 55 8 6 L...

Page 36: ...8 8 8 5 8 5 A 3 A E 8 D 3 3 3 5 3 9 9 E D 0 O 3 9 7 1 O O A O O 5 C A O A O O O 5 8 5 0 8 O O O 5 5 0 O O 5A 8 5 O O 5 0 5 O 5 OA 8 O O 8 O O 0 O O A 5 7 A 5 7 9 5 9 E D 5 5 5 A 9 E D 5 9 E D 5 9 A 0...

Page 37: ...A 5 5 O 5 5 A 5 J 9 A 5 J 9 A 5 2 6 A A A 2 6 A 8 6 L 8 8 8 8 8 8 A 8 6 L 8 5 8 5 8 A 8 8 A5 5 B 9 8 AA L 0 E 4 4 D A 1 2 5 P E 3 D 4 A E DT Q O C A C A L 0 E D L 0 E D E O5D 5 7 S J 5 A 5 J A 5 A 8...

Page 38: ...AA 3 5 6 C 0 A A5 O O 0 B 5 P 0 O O 5 0 B A 5 P 0 O O 3 5 B 0 O O 5 O O C 5A O 9 E8 D A 0 O O B 5 O B 8 5 7B O 5 O 0 O O 5A 5 0 7B 5 5 0 0 A 0 0 B 0 O O 5A 9 A O O A 0 0 O A O 0 O O 5A A 5O 5O 0 B A 5...

Page 39: ...O A C O5 C 5 O C 5 O C A O 5 C O C A O C A O 9 9 5 5 A O O A O AO O O C O 9 5 O O O O A 0 0 O O B A 0 O O 5 9 O O 5 A A 0 O 9 0 5 B 5 5 0 O 5 O 5 5 O5 O 5 9 0 0 0 O O B 5 B 5 0 O O 5 9 5 5 C 55 5 5 C...

Page 40: ...9 8 5 B 9 L B 9 8 5 E 9 3 8 L D A M 5 0 5 5 5 P 0 O O A 1 0 E D L A 0 B 8 OA OA A A 5 A A A A A 5 A A A A 5 A A A A A A O A 5 5 O J 9 A O 5 O 5 O A A O A O A A 5 5O 9 E D 5 9 E D 5 9 E D 5 A 5 9 9 5A...

Page 41: ...A 5 0 B 8 A 8 B 8 9 5 5 4 A8 S J 4 A8 S J 5 4 A8 S J 5 5 A 7 S J 5 A A A 5 5 5 5 A A A A A A 7 5 A 5 5 A A 5 7 5 5 4 A8 S J 5 A A 5 5 7 5 A A 5 5 4 A8 S J 5 A A 5 A 4 A8 S 5 5 5 5 5 5 5 A 5 5 A 5 5 5...

Page 42: ...8 5 8 8 8 A 8 8 5 8 8 8 A 8 5 8 5 5 8 5 8 5 8 5 A 8 A 8 A 5 8 A 8 A A 8 A 8 A 8 8 5 8 8 A 8 8 8 A 8 8 6 L S J 8 8 A 8 8 6 S J 8 8 8 8 8 A 8 5 8 6 5 L S J 8 8 A 8 A 8 8 A 8 6 L S J 8 8 8 8 A 8 8 8 A 8...

Page 43: ...5 A A 5 5 A A 5 A 5 5OA A O 5 A A 5 5O 5 5 A A A M 5 5 A 5 A A 8 M 5 A 5 AA E D Q A 5 4 8 M C Q 5 A A5 E D Q 5 E D Q E C D 8 6 8 8 8 8 8 8 A 8 6 8 8 5 5 C E D A C E D M L A5 0 B 73 5 B 73 B 8 9 A A 7...

Page 44: ...C 9 3 3 3 3 3 3 5 3 A 3 A A O 5 A 8 6 A 8 A A A O A L 0 E D A5 8 6 L 8 8 AA 8 A 6 8 8 8 8 A 8 6 5 8 5 8 5 A 8 5 6 L 8 8 8 8 8 A 6 8 8 8 8 8 8 8 8 8 8 5 6 8 8 8 8 A 6 8 8 OA A O 5 O 5 5A A O A A A O A...

Page 45: ...5 0 L 9 3 3 8 9 E D AA O A O 5 8 E D A 0 B 0 B 0 O O 9 O C O5 L 0 E D 8 A 6 8 8 A 8 A 8 6 A 8 8 8 8 6 8 8 5 8 A 6 8 8 A 8 6 8 8 8 6 5 L 8 8 8 6 AL 8 8 8 8 8 8 8 8 8 8 6 AL 8 8 8 6 L 8 8 8 6 L 8 5 8 5...

Page 46: ...5 J A 5 A 8 5 6 S J 5 8 8 5 6 S J 5 8 8 8 A 8 8 8 A 8 8 8 A 6 S J 5 8 8 6 L S J 5 8 5 8 8 8 8 8 8 8 8 8 8 6 L S J 5 8 8 A 8 8 8 8 8 8 5 8 6 L S J 5 8 8 8 8 6 S J 5 8 8 9 5 56 O S J 5 8 8 9 8 E D 5 C...

Page 47: ...47 8 5 B 0 O O 5 O O 5 C 5A O A 9 E8 D O O O O 9 0 0 0 O O5B C 5 5OA O C O 0 B 0 O O O EL C D 5 C A O O A A A 0 O O B O B...

Page 48: ......

Page 49: ...49 0 1 7 A...

Page 50: ...O5 5 9 O O 5 C 5 O A 5 C O A C 5 5 C 5 O O O 5 B 9 5 5 C O O 5 9 A 55 C 5 O5 L E D 5A L E D C 5 O 5 C O O 5 5 8 O O O 5 5 O 5 O 0 A 8 5 O O 5 A O 5OA OA A C A O 5 C 55 O A 8 O O A A O O A O AO 6 E 7...

Page 51: ...51...

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