Crown Macro-Tech MA-5000VZ Manuel du propriétaire télécharger pdf (Page 18)

FRONT

END

THEORY

Thefront-end

portion

of the

over-all

block

diagram

has

been

exploded

in the

diagram

below.

Once

again,

only

channel

will

discussed

detail.

The

Balanced

Gain

Stage

circuitry

shown

at the

bottom.

MA-5000VZ

FRONT

END:

(CHANNEL

SHOWN)

KXDRIVER/

INTEGRATOR

Torac

—

¿^

DISPLAY

^Sx.

CACT

COMPRESSOF

DEVICE

BALANCED

INPUTS

FXQ

•

.:,.-.•

-«—

INTEGRATOR

^-O^O^QyT

^QtmOL*

LEVEL

CONTROL

.*r

BALANCED ERROR

AMP

GAIN STAGE

.775VO

(

SEI

R1OO

4.99K

R1O1

4.99K

VOLTAGE

„

TRANSLATOR

LVA

ODEP

3¡

VOLTAGE

>O—

LCH

TRANSLATOR

~"~

LVM

26dB

^^>

JQITIUITV

VARIABLE

JSITIVITY

GAiN

STAGE

WITCH

OIAUK

4 t

ií(<

<^T

MA-5000VZ

Balanced Gain

Stage.

Compression device

—

—^

shown across ¡nputs shunts input

dependent

upon

error

U103

signal

and

front

end

level.

VTL5C2

R371

R370>

51K

47K y

C1O2

82PFH

-=Lr

R106

R102

10K

4.99K

15V

C151

R1O4

oMR-iT>

O.1

_L_

R105

—

in-a

5QPK

^^*-

O3 r

"v,^^

4.99K

C101

S1,50

62pF<

R107

°-1

i—

\r\r\

~~^

1OK ¡I

4-30pF

Circuitry

Level

Control

C1O3

15O

25V NP

•

16-MA-5000VZ

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 29 30

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Crown Macro-Tech MA-5000VZ Manuel du propriétaire Page 18

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