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Roland DS-90, Заметки по обслуживанию, Страница: 14 / 16

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DS-90/90A

Feb. 2000

14

Non-Flame Type

Non-Flame Type

Non-Flame Type

Non-Flame Type

POWER AMP BOARD

(Low Freq. Amp Section)

1kHz +25dBm

13.8V @4ohm

+30V ~

~ -30V

1kHz +0.7dBm

840mV

+25V

-25V

MUTE

LF OUT

LF IN

A

A

A

A

A

+15

- 15

A

A

A

A

A

A

Q23
2SC2240GR

3

1

2

Q20
2SC2240GR

3

1

2

Q24
2SA970GR

3

2

1

Q17

2SA970GR

3

2

1

Q15
2SA1145Y

3

2

1

Q8

2SC3421Y

3

1

2

Q5

2SC3421Y

3

1

2

Q13
2SC2705Y

3

1

2

Q7

2SA1358Y

3

2

1

Q27

2SC2878A

3

1

2

R74

22k

R71
4.7k

R61
4.7k

R73

470

R64
470

R57

470

R76

470

R68
27k

R55
4.7k

R52

4.7k

R51

27k

R44

390

R41

2.7k

R36
2.7k

R38
390

R23

6.8k

R26
3.9k

R28

22k

R30

22k

R79

10k

R45
22k

R24

8.2k

R48

4.7k

R27

68k

R10

100 (1/2W)

R9

100 (1/2W)

R1

SQT5W

0.33

R2

SQT5W

0.33

C6
0.022

C5

0.022

C24

220p

C14

0.22

R13

33 (1/2W)

R6

4.7 (1/2W)

R7

4.7 (1/2W)

R11 33 (1/2W)

IC1A

TL072CP

+

- 2

3

1

IC1B

TL072CP

+

- 6

5

7

IC1C

TL072CP

+

-

8

4

C4

1000/35

C3

1000/35

C17

0.1

C10

0.1

R14
27 (1/2W)

R37

10k

Q1

2SC4386

1

3

2

Q2
2SA1671

1

2

3

R25 220k

D7
1SS133

1

2

C28

0.47

R62

470

D4

1SS133

1

2

CIRCUIT DIAGRAM (ANALOG SHEET) 3/4

Содержание DS-90

Страница 1: ...NPUT Optical DIGITAL INPUT Coaxial DIGITAL THRU OUT Coax ial Power Supply AC117 V AC230 V or AC240 V Power Consumption 80 W Dimensions DS 90 228 6 W x 330 2 D x 371 5 H mm 9 W x 13 D x 14 5 8 H inches...

Страница 2: ...DW00034 1 y 17055191 SPEAKER TWEETER 25 MM 8 OHM S0108C18 SPEAK00019 1 u 17055190 SPEAKER WOOFER 160 MM 4 OHM S0604F19 SPEAK00018 1 i K G281713500 CHASSIS 1 G281713501 CHASSIS 1 o G2467412 HEATSINK 1...

Страница 3: ...WIRING 5P 120MM 1 7 G3489208 WIRING 6P 150MM 1 8 K G281713500 CHASSIS 1 G281713501 CHASSIS 1 9 G2467412 HEATSINK 1 0 G2457147 TRANSFORMER 100V 117V 1 G2457148 TRANSFORMER 230V 240V 1 1 01905145 SEESAW...

Страница 4: ...DS 90 90A Feb 2000 4 BLOCK DIAGRAM...

Страница 5: ...C1815 GR TRANSISTOR Q4 Q6 on DA Q21 Q26 on AS for DS 90 4 15129114 2SC1815 GR TRANSISTOR Q3 Q5 Q7 Q8 on DA Q21 Q26 on AS for DS 90A or New DA 6 15129120 2SC2240 GR TRANSISTOR Q16 Q19 Q20 Q23 Q28 Q32 o...

Страница 6: ...AS 4 40012967 SCREW M3x10 PAN MACHINE SCREW W SW PW BZC for Q1 6 IC5 HS1 on AS 6 40013001 SCREW M4x8 PAN W SEMS BZC for HEATSINK 6 40013012 SCREW M4x10 PAN SEMS FE BZC for TRANSFORMER 4 40012501 SCREW...

Страница 7: ...DS 90 90A Feb 2000 7 CIRCUIT BOARD DA BOARD View from components side for DS 90 for DS 90A or NEW DA View from components side...

Страница 8: ...4AP 13 12 IC1C TC74HCU04AP 5 6 IC1A TC74HCU04AP 1 2 IC1G TC74HCU04AP 14 7 IC1B TC74HCU04AP 3 4 IC8C TC74HCU04AP 5 6 IC8A TC74HCU04AP 1 2 IC8B TC74HCU04AP 3 4 IC8D TC74HCU04AP 9 8 IC8E TC74HCU04AP 11 1...

Страница 9: ...REF 21 A V D D 22 DZFR 23 DZFL 24 C8 47 35 C7 47 35 Q4 2SA1015GR 3 2 1 R22 47k R14 47k R27 47k R16 47k C14 0 1 CN1 S6B PH K S 1 1 2 2 3 3 4 4 5 5 6 6 C21 0 1 Q6 2SC2878A 3 1 2 C11 470p R28 47k R21 15k...

Страница 10: ...DS 90 90A Feb 2000 10 CIRCUIT BOARD ANALOG SHEET View from components side...

Страница 11: ...SC3421Y 3 1 2 Q9 2SA1358Y 3 2 1 Q22 2SC2878A 3 1 2 R63 22k R59 4 7k R53 4 7k R58 1 2k R49 1 2k R47 1 2k R60 470 R56 27k R43 4 7k R40 27k R32 390 R34 2 7k R33 2 7k R29 390 R18 6 8k R20 3 9k R31 22k R35...

Страница 12: ...0 15 C37 0 0039 C34 0 0039 C36 0 0039 C33 0 0039 C52 0 0047 C56 0 0039 C35 0 0039 R86 12k R89 12k C51 0 0047 C44 0 0047 IC6A TL072CP 2 3 1 IC6B TL072CP 6 5 7 IC6C TL072CP 8 4 R113 180k R110 100k R109...

Страница 13: ...59 4 7k R53 4 7k R58 1 2k R49 1 2k R47 1 2k R60 470 R56 27k R43 4 7k R40 27k R32 390 R34 2 7k R33 2 7k R29 390 R18 6 8k R20 3 9k R31 22k R35 22k R67 10k R42 22k R21 8 2k R16 100 1 2W R12 100 1 2W C2 0...

Страница 14: ...Q27 2SC2878A 3 1 2 R74 22k R71 4 7k R61 4 7k R73 470 R64 470 R57 470 R76 470 R68 27k R55 4 7k R52 4 7k R51 27k R44 390 R41 2 7k R36 2 7k R38 390 R23 6 8k R26 3 9k R28 22k R30 22k R79 10k R45 22k R24 8...

Страница 15: ...3 GND 2 IC5 NJM7805FA IN 1 OUT 3 COM 2 IC3 NJM7915FA IN 2 OUT 3 COM 1 D2 CP1002 2 3 1 4 D9 1N4004G 1 2 D8 1N4004G 1 2 C19 0 1 C18 0 1 C1 EC8472MH 472 250 C21 100 35 C9 10000 35 C8 10000 35 C27 100 35...

Страница 16: ...ceramic capacitor to connect between Frame Gnd and A Gnd View from foil side XLR Connector Backside The following changes were made to the early versions of the DS 90 BOARD Ground line is connected t...

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