Shure SE20 Schematic

1

monaural source to one channel
input should be shunted with a

of

the

47,000

SE20,

the

ohm resistor

SE20

or the high frequency trimmer should be readjusted for
proper high frequency equalization.

Outputs:

shown in Figure
to feed a

Channel Level Controls:

Output terminals appear on the rear panel as

C.

Outputs are balanced and designed

150

ohm

or

600

ohm line.

REAR PANEL

FIGURE

C

These controls are located on

the front panel designated as “Channel A Level” and

B

“Channel
operating level of the

Level.” They are used to adjust the overall

SE20

and to balance the individual

levels of the two channels.

Response Trimmers:

response of the two channels

To

allow for balancing the

of

a stereo cartridge,

or

of two monaural cartridges, high and low frequency
response trimmers are provided for each channel. Figure
D

shows the location of these controls and Figure

shows the range and character

of

the response change

E

obtainable.

t20

fl

-

z

110

w

(0

0

go

Lz

w

$-I0

a

_I

w

Lz

-20

20

50

100

FREQUENCY

TYPICAL EFFECT OF RESPONSE TRIMMERS

220

Volt Operation:

restrapped for operation with
make this change, see instructions

FIGURE

IN

1,000

HERTZ

E

10,000

20,000

The power transformer may be

220

volt

A.C.

on

schematic

supply.

To

for

revising power transformer connections.

Guarantee:

This Shure product is guaranteed in normal
use to be free, from electrical and mechanical defects
for a period

of

one year from the date

of

purchase.
Please retain proof of purchase date. This guarantee
includes all parts and labor.

Shipping Instructions:

return

it

prepaid to the factory. If outside the United

States, return the unit

Carefully repack the unit and

to

your dealer

or

Authorized

Shure Service Center for repair. The unit will be re-

turned to you prepaid.

LOW

FREQUENCY

HIGH

FREQUENCY TRIMMER

SIDE VIEW (COVER REMOVED)

TRIMVER

RESPONSE TRIMMERS

D

FIGURE