Casio EG-5 User Manual download pdf (Page 8)

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CIRCUIT DESCRIPTION

Pickup

The pickup is a humbacking pickup, which consists of the two coils connected in series opposition. Each coil

has the same turns but it has the opposite polarity of the core to the other one.

Hum Cancel Circuit

By adding two outputs from the pickup, the hum cancel circuit removes a hum noise, it also doubles amplitude

of the signal.

Distortion Circuit

The distortion circuit adds a distortion effect to the original signal from the pickup. The circuit cuts off peak of

the waveform, it also produces a sound signal like a howling sound.

Head Amp. (TA8142AP)

The internal block diagram is shown in Figure 5.

Noise

Signal

Noise Noise

Signal

Humbacking Pickup

Output2 Output1

< Figure 4 >

ALC

PIN1

PNF1

PNF2

PIN2

RFN1

RIN1

ALC

RIN2

RNF2

GND

ROt2

ROt1

Ch2

Ch1

Ch2

Ch1

Vref2

Vref1

POt1

Iref

POt2

VCC

< Figure 5 >

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 18 19

ELECTRIC GUITAR 1
CONTENTS 2
SPECIFICATIONS 2
BLOCK DIAGRAMS 3
< DISTORTION CIRCUIT > 4
DISASSEMBLY INSTRUCTIONS 5
ADJUSTMENT 7
CIRCUIT DESCRIPTION 8
WIRING DIAGRAM 9
SCHEMATIC DIAGRAMS 10
I/O PCB JCM370-MA2M, MA3M 11
CASSETTE PCB JCM370-MA4M 12
CONSOLE PCB JCM370-CN1M 13
EXPLODED VIEW 14
PARTS LIST 15
ELECTRICAL PARTS LIST 16
MECHANICAL PARTS LIST 17
8-11-10, Nishi-Shinjuku 19
Shinjuku-ku, Tokyo 160, Japan 19
Telephone: 03-3347-4926 19

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Casio EG-5 User Manual Page 8

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