Akai Professional Rhythm Wolf

9-79-0697-B-0
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AES/CAN
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9-40-0697-B
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Copyright 2013-2014 inMusic Brands
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Akai Professional
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ASSY NUMBER:
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1
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2
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3
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4
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5
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6
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D
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C
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B
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A
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C
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D
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B

A
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COMPANY:
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TITLE:
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PART NUMBER:
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FILENAME:
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SCALE:
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RELEASED:
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DRAWN:
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DATED:
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DATED:
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SIZE:
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SHEET:
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OF
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8
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7
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C
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8/13/2014
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ASD1MNB02A.sch
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ASD1 Main PCB
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Bass Synth Section 2
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Determines EG decay
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Envelope
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SLIDE goes high to hold Bass on indefinately
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Decay
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Amount
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Note 1
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Double Diode prevents Slide
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from bleeding into Env. Amt.
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5
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+
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6

-
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7
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U27-B
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NJM4580M
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R276
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10k 1%
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R281
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4.99K 1%
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R280
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10k 1%
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R275
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5.11k 1%
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Q50
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MBT4401
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Q49
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MBT4403
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R319
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20.0k 1%
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R320
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10k 1%
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R315
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10k 1%
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R314
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4.75k 1%
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R313

4.75k 1%
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Q48
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MBT4401
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R312

10k 1%
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C155
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4.7uF,25V
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R305
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10k 1%
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R306
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100k 1%
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Q47
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MBT4401
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R265
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5.11k 1%
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Q44

MBT4401
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C147
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22uF,16V
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R297
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100 ohm 1%
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R307

100 ohm 1%
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C150
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47uF,25V
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R308
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10k 1%
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3

+
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2

-

1

U27-A
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NJM4580M
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CW
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1

2

3

P25
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10KB
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3
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+
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2

-

1
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U18-A
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NJM4580M
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R311
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10k 1%
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5

+
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6

-

7

U18-B
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NJM4580M
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3

+

2

-

1

U25-A
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LM393
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5

+

6

-

7

U25-B
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LM393
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R288
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10k 1%
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D15

1N4148W
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D14
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1N4148W
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1

2

3

D13
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BAT54C
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1
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2
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3
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D20
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BAT54C
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R260
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200k 1%
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R241
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249k 1%
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R247
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10k 1%
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R246
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24.9k 1%
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R209
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750 ohm 1%
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R287

10k 1%
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D19

1N4148W

R274
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249k 1%

R273

24.9k 1%

C133

1500pF

R261

24.9k 1%

CW

1

2

3

P26-A

500KB

CW

4

5

6

P26-B

500KB
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R416

383 ohm 1%

Q43

MBT4403
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R283

10k 1%
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C137

3300pF
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R282

10k 1%
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Q38

MBT4403
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R221

10k 1%
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C116

3300pF
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R230
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10k 1%
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D48
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1N4148W
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C86
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2.2uF,100V
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R96
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75.0k 1%
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D55
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1N4148W
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R171

100k 1%
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R216

100k 1%
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C223

100pF
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COM_TRIG
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BASS_VEL_0
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BASS_VEL_1
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+12VA
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+12VA
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AMP_EG
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SLIDE
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ENV_AMT
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+12VA
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+12VA
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-12VA
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+12VA
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+12VA
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AGND
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AGND
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AGND
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AGND
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AGND
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AGND
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AGND
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AGND
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AGND

AGND

AGND

AGND

AGND

AGND
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