EasyManua.ls Logo

Marantz 2238B Service Manual

Marantz 2238B
32 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Question and Answer IconNeed help?

Do you have a question about the Marantz 2238B and is the answer not in the manual?

Marantz 2238B Specifications

General IconGeneral
Power Output38 watts per channel into 8Ω (stereo)
Total Harmonic Distortion0.1%
Damping Factor45
Input Sensitivity2.2mV (MM), 180mV (line)
Dimensions440 x 137 x 365mm
Speaker Load Impedance4Ω to 16Ω
Tuning RangeFM: 88MHz to 108MHz, AM: 520kHz to 1600kHz

Summary

Introduction

Service Notes

Test Equipment Required for Servicing

Required Test Equipment List

Lists essential test equipment and their specified uses for servicing the receiver.

AM Alignment Procedure

AM IF Alignment

Step-by-step guide for aligning the AM Intermediate Frequency stages.

AM Frequency Range and Tracking Alignment

Procedure for tuning and aligning the AM frequency range and tracking.

FM Alignment Procedure

FM Frequency Range and Tracking Alignment

Steps for aligning the FM frequency range, tracking, and tuning meter.

Stereo Separation Alignment

Method for adjusting stereo separation for optimal FM reception.

Muting Threshold Adjustment

Adjusting the FM muting sensitivity level.

FM Dolby Level Adjustment

Calibrating the Dolby level for FM signals.

Power Amplifier Adjustment

Power Supply Adjustment

Voltage Conversion

FTZ Regulation

Major Component Locations

Front Panel Component Locations

Identification of components and adjustment points on the front panel.

Main Chassis Component Locations (Top View)

Location map for components on the top side of the main chassis.

Rear Panel Component Locations

Identification of components and connectors on the rear panel.

Main Chassis Component Locations (Bottom View)

Location map for components on the bottom side of the main chassis.

Diagram and Component Locations

FM & AM Tuner Assembly Schematic and Component Locations

Schematic and component layout for the FM/AM tuner board.

Dial Lamp Assembly Schematic and Component Locations

Schematic and component layout for the dial lamp assembly.

DLB-1 Socket Assembly Schematic and Component Locations

Schematic and component layout for the DLB-1 socket assembly.

Main Amp. & Power Supply Assembly Schematic and Component Locations

Schematic and component layout for the main amplifier and power supply.

Tone Amp. Assembly Schematic and Component Locations

Schematic and component layout for the tone amplifier board.

FM Front End Assembly Schematic and Component Locations

Schematic and component layout for the FM front end board.

EQ. Amp. Assembly Schematic and Component Locations

Schematic and component layout for the equalizer amplifier board.

Block Diagram

Connection Diagrams

Connection Diagrams for U.S.A. & Canadian Models

Wiring diagrams illustrating connections for US and Canadian models.

Connection Diagrams for European Model

Wiring diagrams illustrating connections for the European model.

Schematic Diagrams

Schematic Diagrams for U.S.A. & Canadian Models

Detailed circuit diagrams for US and Canadian models.

Schematic Diagrams for European Model

Detailed circuit diagrams for the European model.

Exploded Mechanical Diagrams

Cabinet Exploded View

Diagram showing the assembly and parts of the receiver's cabinet.

Chassis Exploded View

Diagram showing the assembly and parts of the receiver's chassis.

Rear Panel Exploded Views

Diagrams detailing the assembly of rear panels for different models.

Packing Material Exploded View

Technical Specifications

Parts List

Related product manuals