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C26 2 WAY 10µF C27 10µF R31 R27 C21 R50 +15VDC 470 D2 R21 Q1 2N5550 R49 1K R20 R16 13K C12 CH 1 GAIN P1 50K C5 1 10µF R5 12K 5 C4 27pF R7 5.6K C7 .22µf R6 13K C8 .22µf C9 .22µf R8 91K 3 R10 6
!S2.A

R32 100K

S3

C28 10µF 2 P4 50K 3
!A18.A +

HI OUT CH1 R33 1 C29 27pF R35 R34 22K 3 2 22K
!-

J3

3 WAY

150 S4

47K

13K

R36 1 150

A8.A
+

27pF R23 C22 2 3 47K
!-

C23 R26 .0047µf 2 P3.B 50K 3 A6.A
+ !-

PEAK
PEAK CH1

82K R22 47K

R24 1 3.3K P3.A 50K

A5.A
+

6 5

.0047µf
!-

A5.B
+

7

R28 1 3.3K P3.C 50K

C24 .0047µf 6 5
!-

C25 R30 .0047µf 2 P3.D 50K 3
!-

3.3K

A6.B
+

C30 1 10µF P5 50K 6 5
!A18.B +

7

R25 18K FREQ ADJ

3.3K

A7.A
+

R37 7 C31 27pF R39 R38 6 5 22K
!-

MID OUT CH1 J4

150

R48

D1

CHANNEL 1 INPUT
T J1 R C1 J2
1 3 2

C3 27pF R3 R1 22K R2 22K R4 22K 2 3 22K
!-

C6 27pF

10K

47K S2 (10X SWITCH)

R29 18K

S5

27pF R12 C10 6 5 47K
!-

R40 7 150

C14 .047µf C13 R13 7 3.3K P2.A 50K .0047µF
!-

S2.B

C16 .047µf C15

S2.C

10µF C2 10µF

C18 .047µf

S2.D

22K C20 .047µf

A7.B
+

INV

A1.A
+

A1.B
+

7

10µF R9 100K S1.A HIGH PASS

82K R11 47K

A2.B
+

2 3

R15 1 3.3K P2.B 50K

A3.A
+

6 5

.0047µf
!-

R17 7 3.3K P2.C 50K

C17 .0047µf 2 3
!-

C19 R19 .0047µf 6 P2.D
!-

A3.B
+

A4.A
+

C32 7 10µF P6 50K 2 3
!A19.A +

1

R14 18K FREQ ADJ

3.3K

A4.B 5
+

LOW OUT CH1 R41 1 C33 27pF 150 S6 J5

50K

R18 2
!-

C11 1 10µF

A2.A
+

18K R43 R42 22K 5 6 22K
!-

R44 7 150

INV

A8.B
+

C34 27pF R46 R45 22K 3 R95 22K R96 22K 5 C82 10µF P10 50K 6 5
!A20.B +

22K 2
!-

R47 1 C35 27pF 150

MONO SUM OUT J6

A17.A
+

R97 6 22K
!-

R98 7 150

A17.B
+

LO OUT CH2 R91 7 C83 27pF R93 150 S9 J11

R81 R92 47K R77 C71 R101 +15VDC 470 D52 R71 Q51 2N5550 R100 1K R70 R66 13K C62 CH 1 GAIN P7 50K C55 1 10µF R55 12K 5 R60 6
!S8.A

6 5

22K
!-

R94 150

22K

A16.B 7 +

13K

27pF R73 47K 2 3
!-

C72 R74 1 3.3K P9.A 50K 6 5 .0047µf
!-

C73 R76 .0047µf 2 P9.B 50K 3 A14.A
+ !-

PEAK
PEAK CH2

82K R72 47K

C74 R78 .0047µf 6 P9.C 50K 5
!-

A13.A
+

C75 R80 .0047µf 2 P9.D 50K 3
!-

A13.B
+

7

3.3K

1

3.3K

A14.B
+

C80 10µF P11 50K 2 3
!A20.A +

7

R75 18K FREQ ADJ

3.3K

A15.A 1 +

MID OUT CH2 R87 1 C81 27pF R89 R88 22K 6 5 22K
!-

J10

150 S10

CHANNEL 2 INPUT
T J7 R C51 J8
1 3 2

R99 C53 27pF R53 R51 22K R52 22K R54 22K 2 3 22K
!-

D51

C56 27pF

10K

47K S2 (10X SWITCH)

R79 18K

R90 7 150

A15.B
+

27pF R62 C60 7 10µF R59 100K R57 5.6K C57 .22µf R56 13K C58 .22µf C59 .22µf R58 91K 3 6 5 47K
!-

C64 .047µf C63 R63 7 3.3K P8.A 50K .0047µF
!-

S8.B

C66 .047µf C65

S8.C

C68 .047µf

S8.D

10µF C52 + 10µF

C70 .047µf

A9.A
+

A9.B
+

82K R61 HIGH PASS S7.A 47K

A10.B
+

2 3

C67 R67 .0047µf 2 P8.C 50K 3
!-

R65 1 3.3K P8.B 50K

A11.A
+

6 5

.0047µf
!-

C69 R69 .0047µf 6 P8.D 50K 5
!-

A11.B
+

7

3.3K

A12.A
+

1

C54 27pF

R64 18K FREQ ADJ

3.3K

A12.B
+

7 C76 10µF C77 10µF 3 WAY C78 R82 100K S12.A 10µF 2 WAY P12 50K 6 5
!A19.B +

R68 2
!-

C61 1 10µF

A10.A
+

18K

HI OUT CH2 R83 7 C79 27pF R85 150 S11 J9

R102 1.5K D105 QC1 R200 10

R84

2 3

22K
!-

R86 150

POWER LED

22K

A16.A 1 +

U1 7815 F3 + C101 2200µF + C103 10µF

+15VDC

CARVIN
DRAWN BY:

12340 World Trade Drive San Diego, CA 92128 (619) 487-1600 FAX 487-6629

D101 N E L QC2
ON/OFF

D103

120V 240V D102 D104 C104 10µF

XC3000
Stereo 3-Way Electronic Crossover
DATE:

J. KENNEDY
120V C102 2200µF C100 QC3 F1
T1

8DEC93
DATE:

+

+

APPROVED:

F2 -15VDC 7915 U2

PCB NO:

REV:

30-30000
REV:

A1 C
DATE:

3. 10X SWITCH IS 1X WHEN CLOSED. 2. ALL DIODES ARE 1N4003, EXCEPT AS NOTED. 1. ALL CAPACITORS ARE IN MICROFARADS, EXCEPT AS NOTED. NOTES: UNLESS OTHERWISE SPECIFIED.

ASSY. NO: REVISED BY:

80-30000 J. KENNEDY

20JUN96