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C1 82pF R2 10K H7-1 EQ IN R1 10K 3 2
­

R28 10K C13 C2 1 10µF 2 H2-9 3 82pF R23 68K
­

C14 82pF R25 10K R24 10K 5 6
­

A1.A
+

C15 7 10µF

R31 470 R32 100K

H7-3 EQ OUT

A4.B
+

A4.A
+

1 H2-10

+ P1 10K ­ 75Hz

C3 .22 R3 H2-8 15K R4 3.9K C4 .22 5 6

R5 27K
­

C5 .22 P2 10K 7 R6 8.2K + ­ R7 H2-7 9.1K R8 2.7K C6 .22 3 2

R9 18K
­

C7 .022 + 1 R10 10K P3 10K R11 H2-5 C8 .022 5 6

R13 15K
­

C9 .01 + 7 P4 10K R14 18K ­ R15 H2-6 C10 7.5K R16 2.2K .01 3 2

R17 15K
­

C11 .0033 + P5 10K ­ R18 13K R19 H2-4 C12 15K R20 3.9K .0033 5 6

R21 27K
­

A1.B
+

A2.A
+

150Hz

7.5K ­ R12 1K Hz 7.5K

A2.B
+

A3.A
+

1

A3.B
+

7 R22 12K

3K Hz

6K Hz

QC1 H2-3 D2 Not Used R30 Not Used D1 POWER R29 1K R27 + H2-2 R26 10 + C16 .01µF C18 C17 .01µF .01 V+ TO IC1-4 PIN 8 C19 .01 V­ TO IC1-4 PIN 4 H2-1 N/U N/U H7-7 H7-8

PCB 30-00105 Quad X-Amp EQ

H7-4

H7-2

H7-5

10

H7-6

4. H2 LOCATES THE RIBBON SPLITTING THE CIRCUIT BOARD. 3. ALL OP AMPS ARE TYPE 4558. 2. ALL CAPACITORS IN µF. 1. ALL RESISTORS IN OHMS, .25W. NOTES: UNLESS OTHERWISE INDICATED

CARVIN
Schematic: 84-00105 DRAWN BY: APPROVED: PCB NO: ASSY. NO:

1155 INDUSTRIAL AVE. ESCONDIDO, CA 92029 (619) 747-1710 FAX 747-9065

LAST USED LIST
SYM

Quad X-Amp
GRAPHIC EQUALIZER DATE: DATE: REV: REV: DATE:

A C D H P R

1-4 1-19 1-2 2,7 1-5 1-32

C. McEUEN

20NOV91

30-00105 80-00105 J. KENNEDY

A C 25AUG92

REVISED BY: