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General Instrument STARLINE MB-750D-H User Manual

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Dual-Output Amplifier
Model MB-750D-H
Model MB-750D-H/40
Installation Manual
ASSEMBLED IN MEXICO
General Instrument Corporation
GI Communications Division
Hatboro, Pa. 19040
20 dB
FWD/
RET
X0-36
20A
JXP
FWD
IN
FORWARD
EQUALIZER
JXP
JXP
JXP
FWD
INTR
FWD
OUT
FWD
OUT
MAN
ACB
OFF
L
H
X0-36
MB-750D-H
20 dB
PORT
2
20 dB
PORT3&4
RET
IN
JXP
X0-36
SPLIT
JXP
RET
OUT
AUTOMATIC CONTROL
BOARD
RETURN
EQUALIZER
SEE-
*
RESPONSE
CORRECTION
MDR
EQ-
*
IN
3
XO-36
4
DUAL HYBRID
POWER DOUBLING
MINI-BRIDGER
2
General Instrument
GI
EQUALIZER
MDR-750/10
C80
C81
C82
SEE-* EQUAL.
FORWARD CABLE
General Instrument Corporation
Hatboro, Pa. 19040
POWER SUPPLY
DC VOLTAGE
ADJUST
ASSEMBLED IN MEXICO
REGULATED DC VOLTAGE
DC (-) DC (+)POWER
GROUND
FUSE
VOLTS (RMS)
MAY BE PRESENT UNDER COVER
VOLTAGES IN EXCESS OF 150 VOLTS
CAUTION
MPPS
AC
AC
ARRESTOR
SURGE
Jerrold Communications
AC LINE
VOLTAGE
GI
General Instrument
Jerrold

Table of Contents

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General Instrument STARLINE MB-750D-H Specifications

General IconGeneral
BrandGeneral Instrument
ModelSTARLINE MB-750D-H
CategoryAmplifier
LanguageEnglish

Summary

Introduction

Using This Manual

Provides instructions for installing, configuring, and operating the MB-750D-H and MB-750D-H/40 mini-bridgers.

Related Documentation

States that the installation manual is complete and no additional documentation is required.

Technical Support and Repairs

Provides contact information for assistance and details the procedure for sending equipment for repair.

Overview

Product Description

Describes the MB-750D-H and MB-750D-H/40 as dual output, high gain, three-stage hybrid amplifiers.

Assemblies and Modules

Describes the major components and subassemblies associated with the MB-750D-H and MB-750D-H/40.

Model MPPS Power Pack

Explains the function, specifications, and protection features of the MPPS power pack.

Forward Amplifier

Details the electronics of the forward amplifier, including stages and equalization.

Preinstallation Procedures

Configuring the MB-750D-H*

Details the selection and installation of components required to configure the amplifier.

Forward Equalizer Selection

Explains how to select and install forward cable equalizers to compensate for cable attenuation.

Output Passives

Describes how to select and install output splitters or directional couplers.

Sweep Response and Gain Testing

Shows typical test equipment connections for preinstallation testing.

Field Installation

Mechanical Installation

Describes methods for suspending or mounting the unit on strand or pedestal.

Power-up and Balancing

Instructions for applying power, checking voltages, and balancing amplifier output.

Manual Thermal Gain Control

Details final adjustments for manual thermal gain control and gain reserves.

Automatic Level Control

Provides steps to test and adjust the operation of the Automatic Level Control (ACB) option.

Appendix A Specifications

Amplifier Specifications

Lists key operational and performance parameters for the MB-750D-H amplifier.

Automatic Control Board Specifications

Lists specifications for the Automatic Control Board (MB-ACB/*) option.

Return Amplifier Kit Specifications

Lists specifications for the Return Amplifier Kit (RA-Kit/40L) for two-way service.

Diplex Filters Specifications

Lists specifications for the DF1-SS/40 and DF1-SS diplex filters.